ffmpeg 参数解释

怼烎@ 2022-08-20 04:17 719阅读 0赞

Hyper fast Audio and Video encoder  
usage: ffmpeg \[options\] \[\[infile options\] -i infile\]... \{\[outfile options\] outfile\}...  
  
  
Getting help:  
    -h      -- print basic options  
    -h long -- print more options  
    -h full -- print all options (including all format and codec specific options, very long)  
    See man ffmpeg for detailed description of the options.  
  
  
Print help / information / capabilities:  
\-L                  show license  
\-h topic            show help  
\-? topic            show help  
\-help topic         show help  
\--help topic        show help  
\-version            show version  
\-formats            show available formats  
\-codecs             show available codecs  
\-decoders           show available decoders  
\-encoders           show available encoders  
\-bsfs               show available bit stream filters  
\-protocols          show available protocols  
\-filters            show available filters  
\-pix\_fmts           show available pixel formats  
\-layouts            show standard channel layouts  
\-sample\_fmts        show available audio sample formats  
  
  
Global options (affect whole program instead of just one file:  
\-loglevel loglevel  set libav\* logging level  
\-v loglevel         set libav\* logging level  
\-report             generate a report  
\-max\_alloc bytes    set maximum size of a single allocated block  
\-y                  overwrite output files  
\-n                  do not overwrite output files  
\-stats              print progress report during encoding  
\-bits\_per\_raw\_sample number  set the number of bits per raw sample  
\-croptop size       Removed, use the crop filter instead  
\-cropbottom size    Removed, use the crop filter instead  
\-cropleft size      Removed, use the crop filter instead  
\-cropright size     Removed, use the crop filter instead  
\-padtop size        Removed, use the pad filter instead  
\-padbottom size     Removed, use the pad filter instead  
\-padleft size       Removed, use the pad filter instead  
\-padright size      Removed, use the pad filter instead  
\-padcolor color     Removed, use the pad filter instead  
\-vol volume         change audio volume (256=normal)  
  
  
Advanced global options:  
\-cpuflags flags     force specific cpu flags  
\-benchmark          add timings for benchmarking  
\-benchmark\_all      add timings for each task  
\-progress url       write program-readable progress information  
\-stdin              enable or disable interaction on standard input  
\-timelimit limit    set max runtime in seconds  
\-dump               dump each input packet  
\-hex                when dumping packets, also dump the payload  
\-vsync              video sync method  
\-async              audio sync method  
\-adrift\_threshold threshold  audio drift threshold  
\-copyts             copy timestamps  
\-copytb mode        copy input stream time base when stream copying  
\-dts\_delta\_threshold threshold  timestamp discontinuity delta threshold  
\-dts\_error\_threshold threshold  timestamp error delta threshold  
\-xerror error       exit on error  
\-filter\_complex graph\_description  create a complex filtergraph  
\-debug\_ts           print timestamp debugging info  
\-intra              deprecated use -g 1  
\-vdt n              discard threshold  
\-sameq              Removed  
\-same\_quant         Removed  
\-deinterlace        this option is deprecated, use the yadif filter instead  
\-psnr               calculate PSNR of compressed frames  
\-vstats             dump video coding statistics to file  
\-vstats\_file file   dump video coding statistics to file  
\-dc precision       intra\_dc\_precision  
\-qphist             show QP histogram  
\-vc channel         deprecated, use -channel  
\-tvstd standard     deprecated, use -standard  
\-isync              this option is deprecated and does nothing  
  
  
Per-file main options:  
\-f fmt              force format  
\-c codec            codec name  
\-codec codec        codec name  
\-pre preset         preset name  
\-map\_metadata outfile\[,metadata\]:infile\[,metadata\]  set metadata information of outfile from infile  
\-t duration         record or transcode "duration" seconds of audio/video  
\-fs limit\_size      set the limit file size in bytes  
\-ss time\_off        set the start time offset  
\-timestamp time     set the recording timestamp ('now' to set the current time)  
\-metadata string=string  add metadata  
\-target type        specify target file type ("vcd", "svcd", "dvd", "dv", "dv50", "pal-vcd", "ntsc-svcd", ...)  
\-frames number      set the number of frames to record  
\-filter filter\_graph  set stream filtergraph  
\-reinit\_filter      reinit filtergraph on input parameter changes  
  
  
Advanced per-file options:  
\-map \[-\]input\_file\_id\[:stream\_specifier\]\[,sync\_file\_id\[:stream\_s  set input stream mapping  
\-map\_channel file.stream.channel\[:syncfile.syncstream\]  map an audio channel from one stream to another  
\-map\_chapters input\_file\_index  set chapters mapping  
\-itsoffset time\_off  set the input ts offset  
\-itsscale scale     set the input ts scale  
\-dframes number     set the number of data frames to record  
\-re                 read input at native frame rate  
\-shortest           finish encoding within shortest input  
\-copyinkf           copy initial non-keyframes  
\-copypriorss        copy or discard frames before start time  
\-tag fourcc/tag     force codec tag/fourcc  
\-q q                use fixed quality scale (VBR)  
\-qscale q           use fixed quality scale (VBR)  
\-profile profile    set profile  
\-attach filename    add an attachment to the output file  
\-dump\_attachment filename  extract an attachment into a file  
\-muxdelay seconds   set the maximum demux-decode delay  
\-muxpreload seconds  set the initial demux-decode delay  
\-bsf bitstream\_filters  A comma-separated list of bitstream filters  
\-fpre filename      set options from indicated preset file  
\-dcodec codec       force data codec ('copy' to copy stream)  
  
  
Video options:  
\-vframes number     set the number of video frames to record  
\-r rate             set frame rate (Hz value, fraction or abbreviation)  
\-s size             set frame size (WxH or abbreviation)  
\-aspect aspect      set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)  
\-bits\_per\_raw\_sample number  set the number of bits per raw sample  
\-croptop size       Removed, use the crop filter instead  
\-cropbottom size    Removed, use the crop filter instead  
\-cropleft size      Removed, use the crop filter instead  
\-cropright size     Removed, use the crop filter instead  
\-padtop size        Removed, use the pad filter instead  
\-padbottom size     Removed, use the pad filter instead  
\-padleft size       Removed, use the pad filter instead  
\-padright size      Removed, use the pad filter instead  
\-padcolor color     Removed, use the pad filter instead  
\-vn                 disable video  
\-vcodec codec       force video codec ('copy' to copy stream)  
\-timecode hh:mm:ss\[:;.\]ff  set initial TimeCode value.  
\-pass n             select the pass number (1 to 3)  
\-vf filter\_graph    set video filters  
\-b bitrate          video bitrate (please use -b:v)  
\-dn                 disable data  
  
  
Advanced Video options:  
\-pix\_fmt format     set pixel format  
\-intra              deprecated use -g 1  
\-vdt n              discard threshold  
\-rc\_override override  rate control override for specific intervals  
\-sameq              Removed  
\-same\_quant         Removed  
\-passlogfile prefix  select two pass log file name prefix  
\-deinterlace        this option is deprecated, use the yadif filter instead  
\-psnr               calculate PSNR of compressed frames  
\-vstats             dump video coding statistics to file  
\-vstats\_file file   dump video coding statistics to file  
\-intra\_matrix matrix  specify intra matrix coeffs  
\-inter\_matrix matrix  specify inter matrix coeffs  
\-top                top=1/bottom=0/auto=-1 field first  
\-dc precision       intra\_dc\_precision  
\-vtag fourcc/tag    force video tag/fourcc  
\-qphist             show QP histogram  
\-force\_fps          force the selected framerate, disable the best supported framerate selection  
\-streamid streamIndex:value  set the value of an outfile streamid  
\-force\_key\_frames timestamps  force key frames at specified timestamps  
\-vc channel         deprecated, use -channel  
\-tvstd standard     deprecated, use -standard  
\-vbsf video bitstream\_filters  deprecated  
\-vpre preset        set the video options to the indicated preset  
  
  
Audio options:  
\-aframes number     set the number of audio frames to record  
\-aq quality         set audio quality (codec-specific)  
\-ar rate            set audio sampling rate (in Hz)  
\-ac channels        set number of audio channels  
\-an                 disable audio  
\-acodec codec       force audio codec ('copy' to copy stream)  
\-vol volume         change audio volume (256=normal)  
\-af filter\_graph    set audio filters  
  
  
Advanced Audio options:  
\-atag fourcc/tag    force audio tag/fourcc  
\-sample\_fmt format  set sample format  
\-channel\_layout layout  set channel layout  
\-absf audio bitstream\_filters  deprecated  
\-apre preset        set the audio options to the indicated preset  
  
  
Subtitle options:  
\-s size             set frame size (WxH or abbreviation)  
\-sn                 disable subtitle  
\-scodec codec       force subtitle codec ('copy' to copy stream)  
\-stag fourcc/tag    force subtitle tag/fourcc  
\-fix\_sub\_duration   fix subtitles duration  
\-spre preset        set the subtitle options to the indicated preset  
  
  
  
  
AVCodecContext AVOptions:  
\-b                 <int>        E..VA. set bitrate (in bits/s) (from 0 to INT\_MAX)  
\-ab                <int>        E...A. set bitrate (in bits/s) (from 0 to INT\_MAX)  
\-bt                <int>        E..V.. Set video bitrate tolerance (in bits/s). In 1-pass mode, bitrate tolerance specifies how far ratecontrol is willing to deviate from the target average bitrate value. This is not related to minimum/maximum bitrate. Lowering tolerance too much has an adverse effect on quality. (from 1 to INT\_MAX)  
\-flags             <flags>      ED.VAS  
   mv4                          E..V.. use four motion vectors per macroblock (MPEG-4)  
   qpel                         E..V.. use 1/4-pel motion compensation  
   loop                         E..V.. use loop filter  
   gmc                          E..V.. use gmc  
   mv0                          E..V.. always try a mb with mv=<0,0>  
   gray                         ED.V.. only decode/encode grayscale  
   psnr                         E..V.. error\[?\] variables will be set during encoding  
   naq                          E..V.. normalize adaptive quantization  
   ildct                        E..V.. use interlaced DCT  
   low\_delay                    ED.V.. force low delay  
   global\_header                E..VA. place global headers in extradata instead of every keyframe  
   bitexact                     ED.VAS use only bitexact functions (except (I)DCT)  
   aic                          E..V.. H.263 advanced intra coding / MPEG-4 AC prediction  
   cbp                          E..V.. Deprecated, use mpegvideo private options instead  
   qprd                         E..V.. Deprecated, use mpegvideo private options instead  
   ilme                         E..V.. interlaced motion estimation  
   cgop                         E..V.. closed GOP  
\-me\_method         <int>        E..V.. set motion estimation method (from INT\_MIN to INT\_MAX)  
   zero                         E..V.. zero motion estimation (fastest)  
   full                         E..V.. full motion estimation (slowest)  
   epzs                         E..V.. EPZS motion estimation (default)  
   esa                          E..V.. esa motion estimation (alias for full)  
   tesa                         E..V.. tesa motion estimation  
   dia                          E..V.. diamond motion estimation (alias for EPZS)  
   log                          E..V.. log motion estimation  
   phods                        E..V.. phods motion estimation  
   x1                           E..V.. X1 motion estimation  
   hex                          E..V.. hex motion estimation  
   umh                          E..V.. umh motion estimation  
   iter                         E..V.. iter motion estimation  
\-g                 <int>        E..V.. set the group of picture (GOP) size (from INT\_MIN to INT\_MAX)  
\-ar                <int>        ED..A. set audio sampling rate (in Hz) (from INT\_MIN to INT\_MAX)  
\-ac                <int>        ED..A. set number of audio channels (from INT\_MIN to INT\_MAX)  
\-cutoff            <int>        E...A. set cutoff bandwidth (from INT\_MIN to INT\_MAX)  
\-frame\_size        <int>        E...A. (from INT\_MIN to INT\_MAX)  
\-qcomp             <float>      E..V.. video quantizer scale compression (VBR). Constant of ratecontrol equation. Recommended range for default rc\_eq: 0.0-1.0 (from -3.40282e+038 to FLT\_MAX)  
\-qblur             <float>      E..V.. video quantizer scale blur (VBR) (from -1 to FLT\_MAX)  
\-qmin              <int>        E..V.. minimum video quantizer scale (VBR) (from -1 to 69)  
\-qmax              <int>        E..V.. maximum video quantizer scale (VBR) (from -1 to 1024)  
\-qdiff             <int>        E..V.. maximum difference between the quantizer scales (VBR) (from INT\_MIN to INT\_MAX)  
\-bf                <int>        E..V.. use 'frames' B frames (from -1 to 16)  
\-b\_qfactor         <float>      E..V.. QP factor between P- and B-frames (from -3.40282e+038 to FLT\_MAX)  
\-rc\_strategy       <int>        E..V.. ratecontrol method (from INT\_MIN to INT\_MAX)  
\-b\_strategy        <int>        E..V.. strategy to choose between I/P/B-frames (from INT\_MIN to INT\_MAX)  
\-ps                <int>        E..V.. RTP payload size in bytes (from INT\_MIN to INT\_MAX)  
\-bug               <flags>      .D.V.. work around not autodetected encoder bugs  
   autodetect                   .D.V..  
   old\_msmpeg4                  .D.V.. some old lavc-generated MSMPEG4v3 files (no autodetection)  
   xvid\_ilace                   .D.V.. Xvid interlacing bug (autodetected if FOURCC == XVIX)  
   ump4                         .D.V.. (autodetected if FOURCC == UMP4)  
   no\_padding                   .D.V.. padding bug (autodetected)  
   amv                          .D.V..  
   ac\_vlc                       .D.V.. illegal VLC bug (autodetected per FOURCC)  
   qpel\_chroma                  .D.V..  
   std\_qpel                     .D.V.. old standard qpel (autodetected per FOURCC/version)  
   qpel\_chroma2                 .D.V..  
   direct\_blocksize              .D.V.. direct-qpel-blocksize bug (autodetected per FOURCC/version)  
   edge                         .D.V.. edge padding bug (autodetected per FOURCC/version)  
   hpel\_chroma                  .D.V..  
   dc\_clip                      .D.V..  
   ms                           .D.V.. work around various bugs in Microsoft's broken decoders  
   trunc                        .D.V.. truncated frames  
\-lelim             <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider DC coefficient) (from INT\_MIN to INT\_MAX)  
\-celim             <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider DC coefficient) (from INT\_MIN to INT\_MAX)  
\-strict            <int>        ED.VA. how strictly to follow the standards (from INT\_MIN to INT\_MAX)  
   very                         ED.V.. strictly conform to a older more strict version of the spec or reference software  
   strict                       ED.V.. strictly conform to all the things in the spec no matter what the consequences  
   normal                       ED.V..  
   unofficial                   ED.V.. allow unofficial extensions  
   experimental                 ED.V.. allow non-standardized experimental things  
\-b\_qoffset         <float>      E..V.. QP offset between P- and B-frames (from -3.40282e+038 to FLT\_MAX)  
\-err\_detect        <flags>      .D.VA. set error detection flags  
   crccheck                     .D.VA. verify embedded CRCs  
   bitstream                    .D.VA. detect bitstream specification deviations  
   buffer                       .D.VA. detect improper bitstream length  
   explode                      .D.VA. abort decoding on minor error detection  
   careful                      .D.VA. consider things that violate the spec and have not been seen in the wild as errors  
   compliant                    .D.VA. consider all spec non compliancies as errors  
   aggressive                   .D.VA. consider things that a sane encoder should not do as an error  
\-mpeg\_quant        <int>        E..V.. use MPEG quantizers instead of H.263 (from INT\_MIN to INT\_MAX)  
\-qsquish           <float>      E..V.. how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99)  
\-rc\_qmod\_amp       <float>      E..V.. experimental quantizer modulation (from -3.40282e+038 to FLT\_MAX)  
\-rc\_qmod\_freq      <int>        E..V.. experimental quantizer modulation (from INT\_MIN to INT\_MAX)  
\-rc\_eq             <string>     E..V.. Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.  
\-maxrate           <int>        E..VA. Set maximum bitrate tolerance (in bits/s). Requires bufsize to be set. (from INT\_MIN to INT\_MAX)  
\-minrate           <int>        E..VA. Set minimum bitrate tolerance (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise. (from INT\_MIN to INT\_MAX)  
\-bufsize           <int>        E..VA. set ratecontrol buffer size (in bits) (from INT\_MIN to INT\_MAX)  
\-rc\_buf\_aggressivity <float>      E..V.. currently useless (from -3.40282e+038 to FLT\_MAX)  
\-i\_qfactor         <float>      E..V.. QP factor between P- and I-frames (from -3.40282e+038 to FLT\_MAX)  
\-i\_qoffset         <float>      E..V.. QP offset between P- and I-frames (from -3.40282e+038 to FLT\_MAX)  
\-rc\_init\_cplx      <float>      E..V.. initial complexity for 1-pass encoding (from -3.40282e+038 to FLT\_MAX)  
\-dct               <int>        E..V.. DCT algorithm (from 0 to INT\_MAX)  
   auto                         E..V.. autoselect a good one (default)  
   fastint                      E..V.. fast integer  
   int                          E..V.. accurate integer  
   mmx                          E..V..  
   altivec                      E..V..  
   faan                         E..V.. floating point AAN DCT  
\-lumi\_mask         <float>      E..V.. compresses bright areas stronger than medium ones (from -3.40282e+038 to FLT\_MAX)  
\-tcplx\_mask        <float>      E..V.. temporal complexity masking (from -3.40282e+038 to FLT\_MAX)  
\-scplx\_mask        <float>      E..V.. spatial complexity masking (from -3.40282e+038 to FLT\_MAX)  
\-p\_mask            <float>      E..V.. inter masking (from -3.40282e+038 to FLT\_MAX)  
\-dark\_mask         <float>      E..V.. compresses dark areas stronger than medium ones (from -3.40282e+038 to FLT\_MAX)  
\-idct              <int>        ED.V.. select IDCT implementation (from 0 to INT\_MAX)  
   auto                         ED.V..  
   int                          ED.V..  
   simple                       ED.V..  
   simplemmx                    ED.V..  
   libmpeg2mmx                  ED.V..  
   mmi                          ED.V..  
   arm                          ED.V..  
   altivec                      ED.V..  
   sh4                          ED.V..  
   simplearm                    ED.V..  
   simplearmv5te                ED.V..  
   simplearmv6                  ED.V..  
   simpleneon                   ED.V..  
   simplealpha                  ED.V..  
   h264                         ED.V..  
   vp3                          ED.V..  
   ipp                          ED.V..  
   xvidmmx                      ED.V..  
   faani                        ED.V.. floating point AAN IDCT  
\-ec                <flags>      .D.V.. set error concealment strategy  
   guess\_mvs                    .D.V.. iterative motion vector (MV) search (slow)  
   deblock                      .D.V.. use strong deblock filter for damaged MBs  
\-pred              <int>        E..V.. prediction method (from INT\_MIN to INT\_MAX)  
   left                         E..V..  
   plane                        E..V..  
   median                       E..V..  
\-aspect            <rational>   E..V.. sample aspect ratio (from 0 to 10)  
\-debug             <flags>      ED.VAS print specific debug info  
   pict                         .D.V.. picture info  
   rc                           E..V.. rate control  
   bitstream                    .D.V..  
   mb\_type                      .D.V.. macroblock (MB) type  
   qp                           .D.V.. per-block quantization parameter (QP)  
   mv                           .D.V.. motion vector  
   dct\_coeff                    .D.V..  
   skip                         .D.V..  
   startcode                    .D.V..  
   pts                          .D.V..  
   er                           .D.V.. error recognition  
   mmco                         .D.V.. memory management control operations (H.264)  
   bugs                         .D.V..  
   vis\_qp                       .D.V.. visualize quantization parameter (QP), lower QP are tinted greener  
   vis\_mb\_type                  .D.V.. visualize block types  
   buffers                      .D.V.. picture buffer allocations  
   thread\_ops                   .D.V.. threading operations  
\-vismv             <int>        .D.V.. visualize motion vectors (MVs) (from 0 to INT\_MAX)  
   pf                           .D.V.. forward predicted MVs of P-frames  
   bf                           .D.V.. forward predicted MVs of B-frames  
   bb                           .D.V.. backward predicted MVs of B-frames  
\-cmp               <int>        E..V.. full-pel ME compare function (from INT\_MIN to INT\_MAX)  
   sad                          E..V.. sum of absolute differences, fast (default)  
   sse                          E..V.. sum of squared errors  
   satd                         E..V.. sum of absolute Hadamard transformed differences  
   dct                          E..V.. sum of absolute DCT transformed differences  
   psnr                         E..V.. sum of squared quantization errors (avoid, low quality)  
   bit                          E..V.. number of bits needed for the block  
   rd                           E..V.. rate distortion optimal, slow  
   zero                         E..V.. 0  
   vsad                         E..V.. sum of absolute vertical differences  
   vsse                         E..V.. sum of squared vertical differences  
   nsse                         E..V.. noise preserving sum of squared differences  
   w53                          E..V.. 5/3 wavelet, only used in snow  
   w97                          E..V.. 9/7 wavelet, only used in snow  
   dctmax                       E..V..  
   chroma                       E..V..  
\-subcmp            <int>        E..V.. sub-pel ME compare function (from INT\_MIN to INT\_MAX)  
   sad                          E..V.. sum of absolute differences, fast (default)  
   sse                          E..V.. sum of squared errors  
   satd                         E..V.. sum of absolute Hadamard transformed differences  
   dct                          E..V.. sum of absolute DCT transformed differences  
   psnr                         E..V.. sum of squared quantization errors (avoid, low quality)  
   bit                          E..V.. number of bits needed for the block  
   rd                           E..V.. rate distortion optimal, slow  
   zero                         E..V.. 0  
   vsad                         E..V.. sum of absolute vertical differences  
   vsse                         E..V.. sum of squared vertical differences  
   nsse                         E..V.. noise preserving sum of squared differences  
   w53                          E..V.. 5/3 wavelet, only used in snow  
   w97                          E..V.. 9/7 wavelet, only used in snow  
   dctmax                       E..V..  
   chroma                       E..V..  
\-mbcmp             <int>        E..V.. macroblock compare function (from INT\_MIN to INT\_MAX)  
   sad                          E..V.. sum of absolute differences, fast (default)  
   sse                          E..V.. sum of squared errors  
   satd                         E..V.. sum of absolute Hadamard transformed differences  
   dct                          E..V.. sum of absolute DCT transformed differences  
   psnr                         E..V.. sum of squared quantization errors (avoid, low quality)  
   bit                          E..V.. number of bits needed for the block  
   rd                           E..V.. rate distortion optimal, slow  
   zero                         E..V.. 0  
   vsad                         E..V.. sum of absolute vertical differences  
   vsse                         E..V.. sum of squared vertical differences  
   nsse                         E..V.. noise preserving sum of squared differences  
   w53                          E..V.. 5/3 wavelet, only used in snow  
   w97                          E..V.. 9/7 wavelet, only used in snow  
   dctmax                       E..V..  
   chroma                       E..V..  
\-ildctcmp          <int>        E..V.. interlaced DCT compare function (from INT\_MIN to INT\_MAX)  
   sad                          E..V.. sum of absolute differences, fast (default)  
   sse                          E..V.. sum of squared errors  
   satd                         E..V.. sum of absolute Hadamard transformed differences  
   dct                          E..V.. sum of absolute DCT transformed differences  
   psnr                         E..V.. sum of squared quantization errors (avoid, low quality)  
   bit                          E..V.. number of bits needed for the block  
   rd                           E..V.. rate distortion optimal, slow  
   zero                         E..V.. 0  
   vsad                         E..V.. sum of absolute vertical differences  
   vsse                         E..V.. sum of squared vertical differences  
   nsse                         E..V.. noise preserving sum of squared differences  
   w53                          E..V.. 5/3 wavelet, only used in snow  
   w97                          E..V.. 9/7 wavelet, only used in snow  
   dctmax                       E..V..  
   chroma                       E..V..  
\-dia\_size          <int>        E..V.. diamond type & size for motion estimation (from INT\_MIN to INT\_MAX)  
\-last\_pred         <int>        E..V.. amount of motion predictors from the previous frame (from INT\_MIN to INT\_MAX)  
\-preme             <int>        E..V.. pre motion estimation (from INT\_MIN to INT\_MAX)  
\-precmp            <int>        E..V.. pre motion estimation compare function (from INT\_MIN to INT\_MAX)  
   sad                          E..V.. sum of absolute differences, fast (default)  
   sse                          E..V.. sum of squared errors  
   satd                         E..V.. sum of absolute Hadamard transformed differences  
   dct                          E..V.. sum of absolute DCT transformed differences  
   psnr                         E..V.. sum of squared quantization errors (avoid, low quality)  
   bit                          E..V.. number of bits needed for the block  
   rd                           E..V.. rate distortion optimal, slow  
   zero                         E..V.. 0  
   vsad                         E..V.. sum of absolute vertical differences  
   vsse                         E..V.. sum of squared vertical differences  
   nsse                         E..V.. noise preserving sum of squared differences  
   w53                          E..V.. 5/3 wavelet, only used in snow  
   w97                          E..V.. 9/7 wavelet, only used in snow  
   dctmax                       E..V..  
   chroma                       E..V..  
\-pre\_dia\_size      <int>        E..V.. diamond type & size for motion estimation pre-pass (from INT\_MIN to INT\_MAX)  
\-subq              <int>        E..V.. sub-pel motion estimation quality (from INT\_MIN to INT\_MAX)  
\-me\_range          <int>        E..V.. limit motion vectors range (1023 for DivX player) (from INT\_MIN to INT\_MAX)  
\-ibias             <int>        E..V.. intra quant bias (from INT\_MIN to INT\_MAX)  
\-pbias             <int>        E..V.. inter quant bias (from INT\_MIN to INT\_MAX)  
\-global\_quality    <int>        E..VA. (from INT\_MIN to INT\_MAX)  
\-coder             <int>        E..V.. (from INT\_MIN to INT\_MAX)  
   vlc                          E..V.. variable length coder / Huffman coder  
   ac                           E..V.. arithmetic coder  
   raw                          E..V.. raw (no encoding)  
   rle                          E..V.. run-length coder  
   deflate                      E..V.. deflate-based coder  
\-context           <int>        E..V.. context model (from INT\_MIN to INT\_MAX)  
\-mbd               <int>        E..V.. macroblock decision algorithm (high quality mode) (from INT\_MIN to INT\_MAX)  
   simple                       E..V.. use mbcmp (default)  
   bits                         E..V.. use fewest bits  
   rd                           E..V.. use best rate distortion  
\-sc\_threshold      <int>        E..V.. scene change threshold (from INT\_MIN to INT\_MAX)  
\-lmin              <int>        E..V.. minimum Lagrange factor (VBR) (from 0 to INT\_MAX)  
\-lmax              <int>        E..V.. maximum Lagrange factor (VBR) (from 0 to INT\_MAX)  
\-nr                <int>        E..V.. noise reduction (from INT\_MIN to INT\_MAX)  
\-rc\_init\_occupancy <int>        E..V.. number of bits which should be loaded into the rc buffer before decoding starts (from INT\_MIN to INT\_MAX)  
\-inter\_threshold   <int>        E..V.. (from INT\_MIN to INT\_MAX)  
\-flags2            <flags>      ED.VA.  
   fast                         E..V.. allow non-spec-compliant speedup tricks  
   sgop                         E..V.. Deprecated, use mpegvideo private options instead  
   noout                        E..V.. skip bitstream encoding  
   local\_header                 E..V.. place global headers at every keyframe instead of in extradata  
   chunks                       .D.V.. Frame data might be split into multiple chunks  
   showall                      .D.V.. Show all frames before the first keyframe  
   skiprd                       E..V.. Deprecated, use mpegvideo private options instead  
\-error             <int>        E..V.. (from INT\_MIN to INT\_MAX)  
\-qns               <int>        E..V.. deprecated, use mpegvideo private options instead (from INT\_MIN to INT\_MAX)  
\-threads           <int>        ED.V.. (from 0 to INT\_MAX)  
   auto                         ED.V.. autodetect a suitable number of threads to use  
\-me\_threshold      <int>        E..V.. motion estimation threshold (from INT\_MIN to INT\_MAX)  
\-mb\_threshold      <int>        E..V.. macroblock threshold (from INT\_MIN to INT\_MAX)  
\-dc                <int>        E..V.. intra\_dc\_precision (from INT\_MIN to INT\_MAX)  
\-nssew             <int>        E..V.. nsse weight (from INT\_MIN to INT\_MAX)  
\-skip\_top          <int>        .D.V.. number of macroblock rows at the top which are skipped (from INT\_MIN to INT\_MAX)  
\-skip\_bottom       <int>        .D.V.. number of macroblock rows at the bottom which are skipped (from INT\_MIN to INT\_MAX)  
\-profile           <int>        E..VA. (from INT\_MIN to INT\_MAX)  
   unknown                      E..VA.  
   aac\_main                     E...A.  
   aac\_low                      E...A.  
   aac\_ssr                      E...A.  
   aac\_ltp                      E...A.  
   aac\_he                       E...A.  
   aac\_he\_v2                    E...A.  
   aac\_ld                       E...A.  
   aac\_eld                      E...A.  
   dts                          E...A.  
   dts\_es                       E...A.  
   dts\_96\_24                    E...A.  
   dts\_hd\_hra                   E...A.  
   dts\_hd\_ma                    E...A.  
\-level             <int>        E..VA. (from INT\_MIN to INT\_MAX)  
   unknown                      E..VA.  
\-lowres            <int>        .D.VA. decode at 1= 1/2, 2=1/4, 3=1/8 resolutions (from 0 to INT\_MAX)  
\-skip\_threshold    <int>        E..V.. frame skip threshold (from INT\_MIN to INT\_MAX)  
\-skip\_factor       <int>        E..V.. frame skip factor (from INT\_MIN to INT\_MAX)  
\-skip\_exp          <int>        E..V.. frame skip exponent (from INT\_MIN to INT\_MAX)  
\-skipcmp           <int>        E..V.. frame skip compare function (from INT\_MIN to INT\_MAX)  
   sad                          E..V.. sum of absolute differences, fast (default)  
   sse                          E..V.. sum of squared errors  
   satd                         E..V.. sum of absolute Hadamard transformed differences  
   dct                          E..V.. sum of absolute DCT transformed differences  
   psnr                         E..V.. sum of squared quantization errors (avoid, low quality)  
   bit                          E..V.. number of bits needed for the block  
   rd                           E..V.. rate distortion optimal, slow  
   zero                         E..V.. 0  
   vsad                         E..V.. sum of absolute vertical differences  
   vsse                         E..V.. sum of squared vertical differences  
   nsse                         E..V.. noise preserving sum of squared differences  
   w53                          E..V.. 5/3 wavelet, only used in snow  
   w97                          E..V.. 9/7 wavelet, only used in snow  
   dctmax                       E..V..  
   chroma                       E..V..  
\-border\_mask       <float>      E..V.. increase the quantizer for macroblocks close to borders (from -3.40282e+038 to FLT\_MAX)  
\-mblmin            <int>        E..V.. minimum macroblock Lagrange factor (VBR) (from 1 to 32767)  
\-mblmax            <int>        E..V.. maximum macroblock Lagrange factor (VBR) (from 1 to 32767)  
\-mepc              <int>        E..V.. motion estimation bitrate penalty compensation (1.0 = 256) (from INT\_MIN to INT\_MAX)  
\-skip\_loop\_filter  <int>        .D.V.. (from INT\_MIN to INT\_MAX)  
   none                         .D.V..  
   default                      .D.V..  
   noref                        .D.V..  
   bidir                        .D.V..  
   nokey                        .D.V..  
   all                          .D.V..  
\-skip\_idct         <int>        .D.V.. (from INT\_MIN to INT\_MAX)  
   none                         .D.V..  
   default                      .D.V..  
   noref                        .D.V..  
   bidir                        .D.V..  
   nokey                        .D.V..  
   all                          .D.V..  
\-skip\_frame        <int>        .D.V.. (from INT\_MIN to INT\_MAX)  
   none                         .D.V..  
   default                      .D.V..  
   noref                        .D.V..  
   bidir                        .D.V..  
   nokey                        .D.V..  
   all                          .D.V..  
\-bidir\_refine      <int>        E..V.. refine the two motion vectors used in bidirectional macroblocks (from 0 to 4)  
\-brd\_scale         <int>        E..V.. downscale frames for dynamic B-frame decision (from 0 to 10)  
\-keyint\_min        <int>        E..V.. minimum interval between IDR-frames (from INT\_MIN to INT\_MAX)  
\-refs              <int>        E..V.. reference frames to consider for motion compensation (from INT\_MIN to INT\_MAX)  
\-chromaoffset      <int>        E..V.. chroma QP offset from luma (from INT\_MIN to INT\_MAX)  
\-trellis           <int>        E..VA. rate-distortion optimal quantization (from INT\_MIN to INT\_MAX)  
\-sc\_factor         <int>        E..V.. multiplied by qscale for each frame and added to scene\_change\_score (from 0 to INT\_MAX)  
\-mv0\_threshold     <int>        E..V.. (from 0 to INT\_MAX)  
\-b\_sensitivity     <int>        E..V.. adjust sensitivity of b\_frame\_strategy 1 (from 1 to INT\_MAX)  
\-compression\_level <int>        E..VA. (from INT\_MIN to INT\_MAX)  
\-min\_prediction\_order <int>        E...A. (from INT\_MIN to INT\_MAX)  
\-max\_prediction\_order <int>        E...A. (from INT\_MIN to INT\_MAX)  
\-timecode\_frame\_start <int64>      E..V.. GOP timecode frame start number, in non-drop-frame format (from 0 to I64\_MAX)  
\-request\_channels  <int>        .D..A. set desired number of audio channels (from 0 to INT\_MAX)  
\-channel\_layout    <int64>      ED..A. (from 0 to I64\_MAX)  
\-request\_channel\_layout <int64>      .D..A. (from 0 to I64\_MAX)  
\-rc\_max\_vbv\_use    <float>      E..V.. (from 0 to FLT\_MAX)  
\-rc\_min\_vbv\_use    <float>      E..V.. (from 0 to FLT\_MAX)  
\-ticks\_per\_frame   <int>        ED.VA. (from 1 to INT\_MAX)  
\-color\_primaries   <int>        ED.V.. (from 1 to 8)  
\-color\_trc         <int>        ED.V.. (from 1 to 7)  
\-colorspace        <int>        ED.V.. (from 1 to 8)  
\-color\_range       <int>        ED.V.. (from 0 to 2)  
\-chroma\_sample\_location <int>        ED.V.. (from 0 to 6)  
\-slices            <int>        E..V.. number of slices, used in parallelized encoding (from 0 to INT\_MAX)  
\-thread\_type       <flags>      ED.V.. select multithreading type  
   slice                        ED.V..  
   frame                        ED.V..  
\-audio\_service\_type <int>        E...A. audio service type (from 0 to 8)  
   ma                           E...A. Main Audio Service  
   ef                           E...A. Effects  
   vi                           E...A. Visually Impaired  
   hi                           E...A. Hearing Impaired  
   di                           E...A. Dialogue  
   co                           E...A. Commentary  
   em                           E...A. Emergency  
   vo                           E...A. Voice Over  
   ka                           E...A. Karaoke  
\-request\_sample\_fmt <sample\_fmt> .D..A. sample format audio decoders should prefer  
  
  
cljr encoder AVOptions:  
\-dither\_type       <int>        E..V.. Dither type (from 0 to 2)  
  
  
dnxhd AVOptions:  
\-nitris\_compat     <int>        E..V.. encode with Avid Nitris compatibility (from 0 to 1)  
  
  
ffv1 encoder AVOptions:  
\-slicecrc          <int>        E..V.. Protect slices with CRCs (from -1 to 1)  
  
  
flv encoder AVOptions:  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
frwu Decoder AVOptions:  
\-change\_field\_order <int>        .D.V.. Change field order (from 0 to 1)  
  
  
gif decoder AVOptions:  
\-trans\_color       <int>        .D.V.. color value (ARGB) that is used instead of transparent color (from 0 to 4.29497e+009)  
  
  
h261 encoder AVOptions:  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
H.263 encoder AVOptions:  
\-obmc              <int>        E..V.. use overlapped block motion compensation. (from 0 to 1)  
\-structured\_slices <int>        E..V.. Write slice start position at every GOB header instead of just GOB number. (from 0 to 1)  
\-mb\_info           <int>        E..V.. emit macroblock info for RFC 2190 packetization, the parameter value is the maximum payload size (from 0 to INT\_MAX)  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
H.263p encoder AVOptions:  
\-umv               <int>        E..V.. Use unlimited motion vectors. (from 0 to 1)  
\-aiv               <int>        E..V.. Use alternative inter VLC. (from 0 to 1)  
\-obmc              <int>        E..V.. use overlapped block motion compensation. (from 0 to 1)  
\-structured\_slices <int>        E..V.. Write slice start position at every GOB header instead of just GOB number. (from 0 to 1)  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
H264 Decoder AVOptions:  
  
  
MJPEG decoder AVOptions:  
\-extern\_huff       <int>        .D.V.. Use external huffman table. (from 0 to 1)  
  
  
mpeg1video encoder AVOptions:  
\-gop\_timecode      <string>     E..V.. MPEG GOP Timecode in hh:mm:ss\[:;.\]ff format  
\-intra\_vlc         <int>        E..V.. Use MPEG-2 intra VLC table. (from 0 to 1)  
\-drop\_frame\_timecode <int>        E..V.. Timecode is in drop frame format. (from 0 to 1)  
\-scan\_offset       <int>        E..V.. Reserve space for SVCD scan offset user data. (from 0 to 1)  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
mpeg2video encoder AVOptions:  
\-gop\_timecode      <string>     E..V.. MPEG GOP Timecode in hh:mm:ss\[:;.\]ff format  
\-intra\_vlc         <int>        E..V.. Use MPEG-2 intra VLC table. (from 0 to 1)  
\-drop\_frame\_timecode <int>        E..V.. Timecode is in drop frame format. (from 0 to 1)  
\-scan\_offset       <int>        E..V.. Reserve space for SVCD scan offset user data. (from 0 to 1)  
\-non\_linear\_quant  <int>        E..V.. Use nonlinear quantizer. (from 0 to 1)  
\-alternate\_scan    <int>        E..V.. Enable alternate scantable. (from 0 to 1)  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
MPEG4 encoder AVOptions:  
\-data\_partitioning <int>        E..V.. Use data partitioning. (from 0 to 1)  
\-alternate\_scan    <int>        E..V.. Enable alternate scantable. (from 0 to 1)  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
MPEG4 Video Decoder AVOptions:  
  
  
msmpeg4v2 encoder AVOptions:  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
msmpeg4v3 encoder AVOptions:  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
ProRes encoder AVOptions:  
\-mbs\_per\_slice     <int>        E..V.. macroblocks per slice (from 1 to 8)  
\-profile           <int>        E..V.. (from 0 to 3)  
   proxy                        E..V..  
   lt                           E..V..  
   standard                     E..V..  
   hq                           E..V..  
\-vendor            <string>     E..V.. vendor ID  
\-bits\_per\_mb       <int>        E..V.. desired bits per macroblock (from 0 to 8192)  
\-quant\_mat         <int>        E..V.. quantiser matrix (from -1 to 4)  
   auto                         E..V..  
   proxy                        E..V..  
   lt                           E..V..  
   standard                     E..V..  
   hq                           E..V..  
   default                      E..V..  
  
  
rawdec AVOptions:  
\-top               <int>        .D.V.. top field first (from -1 to 1)  
  
  
rv10 encoder AVOptions:  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
rv20 encoder AVOptions:  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
snow encoder AVOptions:  
\-memc\_only         <int>        E..V.. Only do ME/MC (I frames -> ref, P frame -> ME+MC). (from 0 to 1)  
\-no\_bitstream      <int>        E..V.. Skip final bitstream writeout. (from 0 to 1)  
  
  
TIFF encoder AVOptions:  
\-dpi               <int>        E..V.. set the image resolution (in dpi) (from 1 to 65536)  
\-compression\_algo  <int>        E..V.. (from 1 to 32946)  
   packbits                     E..V..  
   raw                          E..V..  
   lzw                          E..V..  
   deflate                      E..V..  
  
  
V210 Decoder AVOptions:  
\-custom\_stride     <int>        .D.V.. Custom V210 stride (from INT\_MIN to INT\_MAX)  
  
  
wmv1 encoder AVOptions:  
\-mpv\_flags         <flags>      E..V.. Flags common for all mpegvideo-based encoders.  
   skip\_rd                      E..V.. RD optimal MB level residual skipping  
   strict\_gop                   E..V.. Strictly enforce gop size  
   qp\_rd                        E..V.. Use rate distortion optimization for qp selection  
   cbp\_rd                       E..V.. use rate distortion optimization for CBP  
\-luma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-chroma\_elim\_threshold <int>        E..V.. single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT\_MIN to INT\_MAX)  
\-quantizer\_noise\_shaping <int>        E..V.. (from 0 to INT\_MAX)  
  
  
AAC encoder AVOptions:  
\-stereo\_mode       <int>        E...A. Stereo coding method (from -1 to 1)  
   auto                         E...A. Selected by the Encoder  
   ms\_off                       E...A. Disable Mid/Side coding  
   ms\_force                     E...A. Force Mid/Side for the whole frame if possible  
\-aac\_coder         <int>        E...A.  (from 0 to 3)  
  
  
AAC decoder AVOptions:  
\-dual\_mono\_mode    <int>        .D..A. Select the channel to decode for dual mono (from -1 to 2)  
   auto                         .D..A. autoselection  
   main                         .D..A. Select Main/Left channel  
   sub                          .D..A. Select Sub/Right channel  
   both                         .D..A. Select both channels  
  
  
AC-3 Encoder AVOptions:  
\-per\_frame\_metadata <int>        E...A. Allow Changing Metadata Per-Frame (from 0 to 1)  
\-center\_mixlev     <float>      E...A. Center Mix Level (from 0 to 1)  
\-surround\_mixlev   <float>      E...A. Surround Mix Level (from 0 to 1)  
\-mixing\_level      <int>        E...A. Mixing Level (from -1 to 111)  
\-room\_type         <int>        E...A. Room Type (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   large                        E...A. Large Room  
   small                        E...A. Small Room  
\-copyright         <int>        E...A. Copyright Bit (from -1 to 1)  
\-dialnorm          <int>        E...A. Dialogue Level (dB) (from -31 to -1)  
\-dsur\_mode         <int>        E...A. Dolby Surround Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   on                           E...A. Dolby Surround Encoded  
   off                          E...A. Not Dolby Surround Encoded  
\-original          <int>        E...A. Original Bit Stream (from -1 to 1)  
\-dmix\_mode         <int>        E...A. Preferred Stereo Downmix Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   ltrt                         E...A. Lt/Rt Downmix Preferred  
   loro                         E...A. Lo/Ro Downmix Preferred  
\-ltrt\_cmixlev      <float>      E...A. Lt/Rt Center Mix Level (from -1 to 2)  
\-ltrt\_surmixlev    <float>      E...A. Lt/Rt Surround Mix Level (from -1 to 2)  
\-loro\_cmixlev      <float>      E...A. Lo/Ro Center Mix Level (from -1 to 2)  
\-loro\_surmixlev    <float>      E...A. Lo/Ro Surround Mix Level (from -1 to 2)  
\-dsurex\_mode       <int>        E...A. Dolby Surround EX Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   on                           E...A. Dolby Surround EX Encoded  
   off                          E...A. Not Dolby Surround EX Encoded  
\-dheadphone\_mode   <int>        E...A. Dolby Headphone Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   on                           E...A. Dolby Headphone Encoded  
   off                          E...A. Not Dolby Headphone Encoded  
\-ad\_conv\_type      <int>        E...A. A/D Converter Type (from -1 to 1)  
   standard                     E...A. Standard (default)  
   hdcd                         E...A. HDCD  
\-stereo\_rematrixing <int>        E...A. Stereo Rematrixing (from 0 to 1)  
\-channel\_coupling  <int>        E...A. Channel Coupling (from -1 to 1)  
   auto                         E...A. Selected by the Encoder  
\-cpl\_start\_band    <int>        E...A. Coupling Start Band (from -1 to 15)  
   auto                         E...A. Selected by the Encoder  
  
  
AC3 decoder AVOptions:  
\-drc\_scale         <float>      .D..A. percentage of dynamic range compression to apply (from 0 to 1)  
  
  
Fixed-Point AC-3 Encoder AVOptions:  
\-per\_frame\_metadata <int>        E...A. Allow Changing Metadata Per-Frame (from 0 to 1)  
\-center\_mixlev     <float>      E...A. Center Mix Level (from 0 to 1)  
\-surround\_mixlev   <float>      E...A. Surround Mix Level (from 0 to 1)  
\-mixing\_level      <int>        E...A. Mixing Level (from -1 to 111)  
\-room\_type         <int>        E...A. Room Type (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   large                        E...A. Large Room  
   small                        E...A. Small Room  
\-copyright         <int>        E...A. Copyright Bit (from -1 to 1)  
\-dialnorm          <int>        E...A. Dialogue Level (dB) (from -31 to -1)  
\-dsur\_mode         <int>        E...A. Dolby Surround Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   on                           E...A. Dolby Surround Encoded  
   off                          E...A. Not Dolby Surround Encoded  
\-original          <int>        E...A. Original Bit Stream (from -1 to 1)  
\-dmix\_mode         <int>        E...A. Preferred Stereo Downmix Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   ltrt                         E...A. Lt/Rt Downmix Preferred  
   loro                         E...A. Lo/Ro Downmix Preferred  
\-ltrt\_cmixlev      <float>      E...A. Lt/Rt Center Mix Level (from -1 to 2)  
\-ltrt\_surmixlev    <float>      E...A. Lt/Rt Surround Mix Level (from -1 to 2)  
\-loro\_cmixlev      <float>      E...A. Lo/Ro Center Mix Level (from -1 to 2)  
\-loro\_surmixlev    <float>      E...A. Lo/Ro Surround Mix Level (from -1 to 2)  
\-dsurex\_mode       <int>        E...A. Dolby Surround EX Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   on                           E...A. Dolby Surround EX Encoded  
   off                          E...A. Not Dolby Surround EX Encoded  
\-dheadphone\_mode   <int>        E...A. Dolby Headphone Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   on                           E...A. Dolby Headphone Encoded  
   off                          E...A. Not Dolby Headphone Encoded  
\-ad\_conv\_type      <int>        E...A. A/D Converter Type (from -1 to 1)  
   standard                     E...A. Standard (default)  
   hdcd                         E...A. HDCD  
\-stereo\_rematrixing <int>        E...A. Stereo Rematrixing (from 0 to 1)  
\-channel\_coupling  <int>        E...A. Channel Coupling (from -1 to 1)  
   auto                         E...A. Selected by the Encoder  
\-cpl\_start\_band    <int>        E...A. Coupling Start Band (from -1 to 15)  
   auto                         E...A. Selected by the Encoder  
  
  
APE decoder AVOptions:  
\-max\_samples       <int>        .D..A. maximum number of samples decoded per call (from 1 to INT\_MAX)  
   all                          .D..A. no maximum. decode all samples for each packet at once  
  
  
E-AC-3 Encoder AVOptions:  
\-per\_frame\_metadata <int>        E...A. Allow Changing Metadata Per-Frame (from 0 to 1)  
\-mixing\_level      <int>        E...A. Mixing Level (from -1 to 111)  
\-room\_type         <int>        E...A. Room Type (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   large                        E...A. Large Room  
   small                        E...A. Small Room  
\-copyright         <int>        E...A. Copyright Bit (from -1 to 1)  
\-dialnorm          <int>        E...A. Dialogue Level (dB) (from -31 to -1)  
\-dsur\_mode         <int>        E...A. Dolby Surround Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   on                           E...A. Dolby Surround Encoded  
   off                          E...A. Not Dolby Surround Encoded  
\-original          <int>        E...A. Original Bit Stream (from -1 to 1)  
\-dmix\_mode         <int>        E...A. Preferred Stereo Downmix Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   ltrt                         E...A. Lt/Rt Downmix Preferred  
   loro                         E...A. Lo/Ro Downmix Preferred  
\-ltrt\_cmixlev      <float>      E...A. Lt/Rt Center Mix Level (from -1 to 2)  
\-ltrt\_surmixlev    <float>      E...A. Lt/Rt Surround Mix Level (from -1 to 2)  
\-loro\_cmixlev      <float>      E...A. Lo/Ro Center Mix Level (from -1 to 2)  
\-loro\_surmixlev    <float>      E...A. Lo/Ro Surround Mix Level (from -1 to 2)  
\-dsurex\_mode       <int>        E...A. Dolby Surround EX Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   on                           E...A. Dolby Surround EX Encoded  
   off                          E...A. Not Dolby Surround EX Encoded  
\-dheadphone\_mode   <int>        E...A. Dolby Headphone Mode (from -1 to 2)  
   notindicated                 E...A. Not Indicated (default)  
   on                           E...A. Dolby Headphone Encoded  
   off                          E...A. Not Dolby Headphone Encoded  
\-ad\_conv\_type      <int>        E...A. A/D Converter Type (from -1 to 1)  
   standard                     E...A. Standard (default)  
   hdcd                         E...A. HDCD  
\-stereo\_rematrixing <int>        E...A. Stereo Rematrixing (from 0 to 1)  
\-channel\_coupling  <int>        E...A. Channel Coupling (from -1 to 1)  
   auto                         E...A. Selected by the Encoder  
\-cpl\_start\_band    <int>        E...A. Coupling Start Band (from -1 to 15)  
   auto                         E...A. Selected by the Encoder  
  
  
E-AC3 decoder AVOptions:  
\-drc\_scale         <float>      .D..A. percentage of dynamic range compression to apply (from 0 to 1)  
  
  
FLAC encoder AVOptions:  
\-lpc\_coeff\_precision <int>        E...A. LPC coefficient precision (from 0 to 15)  
\-lpc\_type          <int>        E...A. LPC algorithm (from -1 to 3)  
   none                         E...A.  
   fixed                        E...A.  
   levinson                     E...A.  
   cholesky                     E...A.  
\-lpc\_passes        <int>        E...A. Number of passes to use for Cholesky factorization during LPC analysis (from 1 to INT\_MAX)  
\-min\_partition\_order <int>        E...A. (from -1 to 8)  
\-max\_partition\_order <int>        E...A. (from -1 to 8)  
\-prediction\_order\_method <int>        E...A. Search method for selecting prediction order (from -1 to 5)  
   estimation                   E...A.  
   2level                       E...A.  
   4level                       E...A.  
   8level                       E...A.  
   search                       E...A.  
   log                          E...A.  
\-ch\_mode           <int>        E...A. Stereo decorrelation mode (from -1 to 3)  
   auto                         E...A.  
   indep                        E...A.  
   left\_side                    E...A.  
   right\_side                   E...A.  
   mid\_side                     E...A.  
  
  
G.723.1 decoder AVOptions:  
\-postfilter        <int>        .D..A. postfilter on/off (from 0 to 1)  
  
  
g722 decoder AVOptions:  
\-bits\_per\_codeword <flags>      .D..A. Bits per G722 codeword  
  
  
g726 AVOptions:  
\-code\_size         <int>        E...A. Bits per code (from 2 to 5)  
  
  
dvdsubdec AVOptions:  
\-palette           <string>     .D...S set the global palette  
  
  
PGS subtitle decoder AVOptions:  
\-forced\_subs\_only  <int>        .D...S Only show forced subtitles (from 0 to 1)  
  
  
pjs decoder AVOptions:  
\-keep\_ass\_markup   <int>        .D...S Set if ASS tags must be escaped (from 0 to 1)  
  
  
subviewer1 decoder AVOptions:  
\-keep\_ass\_markup   <int>        .D...S Set if ASS tags must be escaped (from 0 to 1)  
  
  
text decoder AVOptions:  
\-keep\_ass\_markup   <int>        .D...S Set if ASS tags must be escaped (from 0 to 1)  
  
  
vplayer decoder AVOptions:  
\-keep\_ass\_markup   <int>        .D...S Set if ASS tags must be escaped (from 0 to 1)  
  
  
libmp3lame encoder AVOptions:  
\-reservoir         <int>        E...A. Use bit reservoir. (from 0 to 1)  
  
  
libopencore\_amrnb AVOptions:  
\-dtx               <int>        E...A. Allow DTX (generate comfort noise) (from 0 to 1)  
  
  
libopenjpeg AVOptions:  
\-format            <int>        E..V.. Codec Format (from 0 to 2)  
   j2k                          E..V..  
   jp2                          E..V..  
\-profile           <int>        E..V.. (from 0 to 4)  
   jpeg2000                     E..V..  
   cinema2k                     E..V..  
   cinema4k                     E..V..  
\-cinema\_mode       <int>        E..V.. Digital Cinema (from 0 to 3)  
   off                          E..V..  
   2k\_24                        E..V..  
   2k\_48                        E..V..  
   4k\_24                        E..V..  
\-prog\_order        <int>        E..V.. Progression Order (from 0 to 4)  
   lrcp                         E..V..  
   rlcp                         E..V..  
   rpcl                         E..V..  
   pcrl                         E..V..  
   cprl                         E..V..  
\-numresolution     <int>        E..V.. (from 1 to INT\_MAX)  
\-numlayers         <int>        E..V.. (from 1 to 10)  
\-disto\_alloc       <int>        E..V.. (from 0 to 1)  
\-fixed\_alloc       <int>        E..V.. (from 0 to 1)  
\-fixed\_quality     <int>        E..V.. (from 0 to 1)  
  
  
libopenjpeg AVOptions:  
\-lowqual           <int>        .D.V.. Limit the number of layers used for decoding (from 0 to INT\_MAX)  
  
  
libopus AVOptions:  
\-application       <int>        E...A. Intended application type (from 2048 to 2051)  
   voip                         E...A. Favor improved speech intelligibility  
   audio                        E...A. Favor faithfulness to the input  
   lowdelay                     E...A. Restrict to only the lowest delay modes  
\-frame\_duration    <float>      E...A. Duration of a frame in milliseconds (from 2.5 to 60)  
\-packet\_loss       <int>        E...A. Expected packet loss percentage (from 0 to 100)  
\-vbr               <int>        E...A. Variable bit rate mode (from 0 to 2)  
   off                          E...A. Use constant bit rate  
   on                           E...A. Use variable bit rate  
   constrained                  E...A. Use constrained VBR  
  
  
libspeex AVOptions:  
\-abr               <int>        E...A. Use average bit rate (from 0 to 1)  
\-cbr\_quality       <int>        E...A. Set quality value (0 to 10) for CBR (from 0 to 10)  
\-frames\_per\_packet <int>        E...A. Number of frames to encode in each packet (from 1 to 8)  
\-vad               <int>        E...A. Voice Activity Detection (from 0 to 1)  
\-dtx               <int>        E...A. Discontinuous Transmission (from 0 to 1)  
  
  
libtwolame encoder AVOptions:  
\-mode              <int>        E...A. Mpeg Mode (from -1 to 3)  
   auto                         E...A.  
   stereo                       E...A.  
   joint\_stereo                 E...A.  
   dual\_channel                 E...A.  
   mono                         E...A.  
\-psymodel          <int>        E...A. Psychoacoustic Model (from -1 to 4)  
\-energy\_levels     <int>        E...A. enable energy levels (from 0 to 1)  
\-error\_protection  <int>        E...A. enable CRC error protection (from 0 to 1)  
\-copyright         <int>        E...A. set MPEG Audio Copyright flag (from 0 to 1)  
\-original          <int>        E...A. set MPEG Audio Original flag (from 0 to 1)  
  
  
libvo\_amrwbenc AVOptions:  
\-dtx               <int>        E...A. Allow DTX (generate comfort noise) (from 0 to 1)  
  
  
libvorbis AVOptions:  
\-iblock            <double>     E...A. Sets the impulse block bias (from -15 to 0)  
  
  
libvpx encoder AVOptions:  
\-cpu-used          <int>        E..V.. Quality/Speed ratio modifier (from INT\_MIN to INT\_MAX)  
\-auto-alt-ref      <int>        E..V.. Enable use of alternate reference frames (2-pass only) (from -1 to 1)  
\-lag-in-frames     <int>        E..V.. Number of frames to look ahead for alternate reference frame selection (from -1 to INT\_MAX)  
\-arnr-maxframes    <int>        E..V.. altref noise reduction max frame count (from -1 to INT\_MAX)  
\-arnr-strength     <int>        E..V.. altref noise reduction filter strength (from -1 to INT\_MAX)  
\-arnr-type         <int>        E..V.. altref noise reduction filter type (from -1 to INT\_MAX)  
   backward                     E..V..  
   forward                      E..V..  
   centered                     E..V..  
\-deadline          <int>        E..V.. Time to spend encoding, in microseconds. (from INT\_MIN to INT\_MAX)  
   best                         E..V..  
   good                         E..V..  
   realtime                     E..V..  
\-error-resilient   <flags>      E..V.. Error resilience configuration  
   default                      E..V.. Improve resiliency against losses of whole frames  
   partitions                   E..V.. The frame partitions are independently decodable by the bool decoder, meaning that partitions can be decoded even though earlier partitions have been lost. Note that intra predicition is still done over the partition boundary.  
\-max-intra-rate    <int>        E..V.. Maximum I-frame bitrate (pct) 0=unlimited (from -1 to INT\_MAX)  
\-speed             <int>        E..V..  (from -16 to 16)  
\-quality           <int>        E..V..  (from INT\_MIN to INT\_MAX)  
   best                         E..V..  
   good                         E..V..  
   realtime                     E..V..  
\-vp8flags          <flags>      E..V..   
   error\_resilient              E..V.. enable error resilience  
   altref                       E..V.. enable use of alternate reference frames (VP8/2-pass only)  
\-arnr\_max\_frames   <int>        E..V.. altref noise reduction max frame count (from 0 to 15)  
\-arnr\_strength     <int>        E..V.. altref noise reduction filter strength (from 0 to 6)  
\-arnr\_type         <int>        E..V.. altref noise reduction filter type (from 1 to 3)  
\-rc\_lookahead      <int>        E..V.. Number of frames to look ahead for alternate reference frame selection (from 0 to 25)  
\-crf               <int>        E..V.. Select the quality for constant quality mode (from 0 to 63)  
  
  
libx264 AVOptions:  
\-preset            <string>     E..V.. Set the encoding preset (cf. x264 --fullhelp)  
\-tune              <string>     E..V.. Tune the encoding params (cf. x264 --fullhelp)  
\-profile           <string>     E..V.. Set profile restrictions (cf. x264 --fullhelp)   
\-fastfirstpass     <int>        E..V.. Use fast settings when encoding first pass (from 0 to 1)  
\-level             <string>     E..V.. Specify level (as defined by Annex A)  
\-passlogfile       <string>     E..V.. Filename for 2 pass stats  
\-wpredp            <string>     E..V.. Weighted prediction for P-frames  
\-x264opts          <string>     E..V.. x264 options  
\-crf               <float>      E..V.. Select the quality for constant quality mode (from -1 to FLT\_MAX)  
\-crf\_max           <float>      E..V.. In CRF mode, prevents VBV from lowering quality beyond this point. (from -1 to FLT\_MAX)  
\-qp                <int>        E..V.. Constant quantization parameter rate control method (from -1 to INT\_MAX)  
\-aq-mode           <int>        E..V.. AQ method (from -1 to INT\_MAX)  
   none                         E..V..  
   variance                     E..V.. Variance AQ (complexity mask)  
   autovariance                 E..V.. Auto-variance AQ (experimental)  
\-aq-strength       <float>      E..V.. AQ strength. Reduces blocking and blurring in flat and textured areas. (from -1 to FLT\_MAX)  
\-psy               <int>        E..V.. Use psychovisual optimizations. (from -1 to 1)  
\-psy-rd            <string>     E..V.. Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.  
\-rc-lookahead      <int>        E..V.. Number of frames to look ahead for frametype and ratecontrol (from -1 to INT\_MAX)  
\-weightb           <int>        E..V.. Weighted prediction for B-frames. (from -1 to 1)  
\-weightp           <int>        E..V.. Weighted prediction analysis method. (from -1 to INT\_MAX)  
   none                         E..V..  
   simple                       E..V..  
   smart                        E..V..  
\-ssim              <int>        E..V.. Calculate and print SSIM stats. (from -1 to 1)  
\-intra-refresh     <int>        E..V.. Use Periodic Intra Refresh instead of IDR frames. (from -1 to 1)  
\-b-bias            <int>        E..V.. Influences how often B-frames are used (from INT\_MIN to INT\_MAX)  
\-b-pyramid         <int>        E..V.. Keep some B-frames as references. (from -1 to INT\_MAX)  
   none                         E..V..  
   strict                       E..V.. Strictly hierarchical pyramid  
   normal                       E..V.. Non-strict (not Blu-ray compatible)  
\-mixed-refs        <int>        E..V.. One reference per partition, as opposed to one reference per macroblock (from -1 to 1)  
\-8x8dct            <int>        E..V.. High profile 8x8 transform. (from -1 to 1)  
\-fast-pskip        <int>        E..V.. (from -1 to 1)  
\-aud               <int>        E..V.. Use access unit delimiters. (from -1 to 1)  
\-mbtree            <int>        E..V.. Use macroblock tree ratecontrol. (from -1 to 1)  
\-deblock           <string>     E..V.. Loop filter parameters, in <alpha:beta> form.  
\-cplxblur          <float>      E..V.. Reduce fluctuations in QP (before curve compression) (from -1 to FLT\_MAX)  
\-partitions        <string>     E..V.. A comma-separated list of partitions to consider. Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all  
\-direct-pred       <int>        E..V.. Direct MV prediction mode (from -1 to INT\_MAX)  
   none                         E..V..  
   spatial                      E..V..  
   temporal                     E..V..  
   auto                         E..V..  
\-slice-max-size    <int>        E..V.. Limit the size of each slice in bytes (from -1 to INT\_MAX)  
\-stats             <string>     E..V.. Filename for 2 pass stats  
\-nal-hrd           <int>        E..V.. Signal HRD information (requires vbv-bufsize; cbr not allowed in .mp4) (from -1 to INT\_MAX)  
   none                         E..V..  
   vbr                          E..V..  
   cbr                          E..V..  
  
  
libx264rgb AVOptions:  
\-preset            <string>     E..V.. Set the encoding preset (cf. x264 --fullhelp)  
\-tune              <string>     E..V.. Tune the encoding params (cf. x264 --fullhelp)  
\-profile           <string>     E..V.. Set profile restrictions (cf. x264 --fullhelp)   
\-fastfirstpass     <int>        E..V.. Use fast settings when encoding first pass (from 0 to 1)  
\-level             <string>     E..V.. Specify level (as defined by Annex A)  
\-passlogfile       <string>     E..V.. Filename for 2 pass stats  
\-wpredp            <string>     E..V.. Weighted prediction for P-frames  
\-x264opts          <string>     E..V.. x264 options  
\-crf               <float>      E..V.. Select the quality for constant quality mode (from -1 to FLT\_MAX)  
\-crf\_max           <float>      E..V.. In CRF mode, prevents VBV from lowering quality beyond this point. (from -1 to FLT\_MAX)  
\-qp                <int>        E..V.. Constant quantization parameter rate control method (from -1 to INT\_MAX)  
\-aq-mode           <int>        E..V.. AQ method (from -1 to INT\_MAX)  
   none                         E..V..  
   variance                     E..V.. Variance AQ (complexity mask)  
   autovariance                 E..V.. Auto-variance AQ (experimental)  
\-aq-strength       <float>      E..V.. AQ strength. Reduces blocking and blurring in flat and textured areas. (from -1 to FLT\_MAX)  
\-psy               <int>        E..V.. Use psychovisual optimizations. (from -1 to 1)  
\-psy-rd            <string>     E..V.. Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.  
\-rc-lookahead      <int>        E..V.. Number of frames to look ahead for frametype and ratecontrol (from -1 to INT\_MAX)  
\-weightb           <int>        E..V.. Weighted prediction for B-frames. (from -1 to 1)  
\-weightp           <int>        E..V.. Weighted prediction analysis method. (from -1 to INT\_MAX)  
   none                         E..V..  
   simple                       E..V..  
   smart                        E..V..  
\-ssim              <int>        E..V.. Calculate and print SSIM stats. (from -1 to 1)  
\-intra-refresh     <int>        E..V.. Use Periodic Intra Refresh instead of IDR frames. (from -1 to 1)  
\-b-bias            <int>        E..V.. Influences how often B-frames are used (from INT\_MIN to INT\_MAX)  
\-b-pyramid         <int>        E..V.. Keep some B-frames as references. (from -1 to INT\_MAX)  
   none                         E..V..  
   strict                       E..V.. Strictly hierarchical pyramid  
   normal                       E..V.. Non-strict (not Blu-ray compatible)  
\-mixed-refs        <int>        E..V.. One reference per partition, as opposed to one reference per macroblock (from -1 to 1)  
\-8x8dct            <int>        E..V.. High profile 8x8 transform. (from -1 to 1)  
\-fast-pskip        <int>        E..V.. (from -1 to 1)  
\-aud               <int>        E..V.. Use access unit delimiters. (from -1 to 1)  
\-mbtree            <int>        E..V.. Use macroblock tree ratecontrol. (from -1 to 1)  
\-deblock           <string>     E..V.. Loop filter parameters, in <alpha:beta> form.  
\-cplxblur          <float>      E..V.. Reduce fluctuations in QP (before curve compression) (from -1 to FLT\_MAX)  
\-partitions        <string>     E..V.. A comma-separated list of partitions to consider. Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all  
\-direct-pred       <int>        E..V.. Direct MV prediction mode (from -1 to INT\_MAX)  
   none                         E..V..  
   spatial                      E..V..  
   temporal                     E..V..  
   auto                         E..V..  
\-slice-max-size    <int>        E..V.. Limit the size of each slice in bytes (from -1 to INT\_MAX)  
\-stats             <string>     E..V.. Filename for 2 pass stats  
\-nal-hrd           <int>        E..V.. Signal HRD information (requires vbv-bufsize; cbr not allowed in .mp4) (from -1 to INT\_MAX)  
   none                         E..V..  
   vbr                          E..V..  
   cbr                          E..V..  
  
  
libxavs AVOptions:  
\-crf               <float>      E..V.. Select the quality for constant quality mode (from -1 to FLT\_MAX)  
\-qp                <int>        E..V.. Constant quantization parameter rate control method (from -1 to INT\_MAX)  
\-b-bias            <int>        E..V.. Influences how often B-frames are used (from INT\_MIN to INT\_MAX)  
\-cplxblur          <float>      E..V.. Reduce fluctuations in QP (before curve compression) (from -1 to FLT\_MAX)  
\-direct-pred       <int>        E..V.. Direct MV prediction mode (from -1 to INT\_MAX)  
   none                         E..V..  
   spatial                      E..V..  
   temporal                     E..V..  
   auto                         E..V..  
\-aud               <int>        E..V.. Use access unit delimiters. (from -1 to 1)  
\-mbtree            <int>        E..V.. Use macroblock tree ratecontrol. (from -1 to 1)  
\-mixed-refs        <int>        E..V.. One reference per partition, as opposed to one reference per macroblock (from -1 to 1)  
\-fast-pskip        <int>        E..V.. (from -1 to 1)  
  
  
AVFormatContext AVOptions:  
\-avioflags         <flags>      ED....  
   direct                       ED.... reduce buffering  
\-probesize         <int>        .D.... set probing size (from 32 to INT\_MAX)  
\-packetsize        <int>        E..... set packet size (from 0 to INT\_MAX)  
\-fflags            <flags>      ED....  
   ignidx                       .D.... ignore index  
   genpts                       .D.... generate pts  
   nofillin                     .D.... do not fill in missing values that can be exactly calculated  
   noparse                      .D.... disable AVParsers, this needs nofillin too  
   igndts                       .D.... ignore dts  
   discardcorrupt               .D.... discard corrupted frames  
   sortdts                      .D.... try to interleave outputted packets by dts  
   keepside                     .D.... dont merge side data  
   latm                         E..... enable RTP MP4A-LATM payload  
   nobuffer                     .D.... reduce the latency introduced by optional buffering  
\-analyzeduration   <int>        .D.... specify how many microseconds are analyzed to probe the input (from 0 to INT\_MAX)  
\-cryptokey         <binary>     .D.... decryption key  
\-indexmem          <int>        .D.... max memory used for timestamp index (per stream) (from 0 to INT\_MAX)  
\-rtbufsize         <int>        .D.... max memory used for buffering real-time frames (from 0 to INT\_MAX)  
\-fdebug            <flags>      ED.... print specific debug info  
   ts                           ED....  
\-max\_delay         <int>        ED.... maximum muxing or demuxing delay in microseconds (from -1 to INT\_MAX)  
\-fpsprobesize      <int>        .D.... number of frames used to probe fps (from -1 to 2.14748e+009)  
\-audio\_preload     <int>        E..... microseconds by which audio packets should be interleaved earlier (from 0 to 2.14748e+009)  
\-chunk\_duration    <int>        E..... microseconds for each chunk (from 0 to 2.14748e+009)  
\-chunk\_size        <int>        E..... size in bytes for each chunk (from 0 to 2.14748e+009)  
\-f\_err\_detect      <flags>      .D.... set error detection flags (deprecated; use err\_detect, save via avconv)  
   crccheck                     .D.... verify embedded CRCs  
   bitstream                    .D.... detect bitstream specification deviations  
   buffer                       .D.... detect improper bitstream length  
   explode                      .D.... abort decoding on minor error detection  
   careful                      .D.... consider things that violate the spec and have not been seen in the wild as errors  
   compliant                    .D.... consider all spec non compliancies as errors  
   aggressive                   .D.... consider things that a sane encoder shouldnt do as an error  
\-err\_detect        <flags>      .D.... set error detection flags  
   crccheck                     .D.... verify embedded CRCs  
   bitstream                    .D.... detect bitstream specification deviations  
   buffer                       .D.... detect improper bitstream length  
   explode                      .D.... abort decoding on minor error detection  
   careful                      .D.... consider things that violate the spec and have not been seen in the wild as errors  
   compliant                    .D.... consider all spec non compliancies as errors  
   aggressive                   .D.... consider things that a sane encoder shouldnt do as an error  
\-use\_wallclock\_as\_timestamps <int>        .D.... use wallclock as timestamps (from 0 to 2.14748e+009)  
\-avoid\_negative\_ts <int>        E..... shift timestamps to make them positive. 1 enables, 0 disables, default of -1 enables when required by target format. (from -1 to 1)  
\-skip\_initial\_bytes <int>        .D.... skip initial bytes (from 0 to 2.14748e+009)  
\-correct\_ts\_overflow <int>        .D.... correct single timestamp overflows (from 0 to 1)  
  
  
AVIOContext AVOptions:  
  
  
URLContext AVOptions:  
  
  
bluray AVOptions:  
\-playlist          <int>        .D....  (from -1 to 99999)  
\-angle             <int>        .D....  (from 0 to 254)  
\-chapter           <int>        .D....  (from 1 to 65534)  
  
  
crypto AVOptions:  
\-key               <binary>     .D.... AES decryption key  
\-iv                <binary>     .D.... AES decryption initialization vector  
  
  
file AVOptions:  
\-truncate          <int>        E..... Truncate existing files on write (from 0 to 1)  
  
  
http AVOptions:  
\-seekable          <int>        .D.... control seekability of connection (from -1 to 1)  
\-chunked\_post      <int>        E..... use chunked transfer-encoding for posts (from 0 to 1)  
\-headers           <string>     ED.... set custom HTTP headers, can override built in default headers  
\-content\_type      <string>     ED.... force a content type  
\-user-agent        <string>     .D.... override User-Agent header  
\-multiple\_requests <int>        ED.... use persistent connections (from 0 to 1)  
\-post\_data         <binary>     ED.... set custom HTTP post data  
\-timeout           <int>        ED.... set timeout of socket I/O operations (from -1 to INT\_MAX)  
  
  
https AVOptions:  
\-seekable          <int>        .D.... control seekability of connection (from -1 to 1)  
\-chunked\_post      <int>        E..... use chunked transfer-encoding for posts (from 0 to 1)  
\-headers           <string>     ED.... set custom HTTP headers, can override built in default headers  
\-content\_type      <string>     ED.... force a content type  
\-user-agent        <string>     .D.... override User-Agent header  
\-multiple\_requests <int>        ED.... use persistent connections (from 0 to 1)  
\-post\_data         <binary>     ED.... set custom HTTP post data  
\-timeout           <int>        ED.... set timeout of socket I/O operations (from -1 to INT\_MAX)  
  
  
srtp AVOptions:  
\-srtp\_out\_suite    <string>     E.....   
\-srtp\_out\_params   <string>     E.....   
\-srtp\_in\_suite     <string>     E.....   
\-srtp\_in\_params    <string>     E.....   
  
  
tcp AVOptions:  
\-listen            <int>        ED.... listen on port instead of connecting (from 0 to 1)  
\-timeout           <int>        ED.... timeout of socket i/o operations (from 0 to INT\_MAX)  
\-listen\_timeout    <int>        ED.... connection awaiting timeout (from -1 to INT\_MAX)  
  
  
udp AVOptions:  
\-buffer\_size       <int>        ED.... Socket buffer size in bytes (from 0 to INT\_MAX)  
\-localport         <int>        ED.... Set local port to bind to (from 0 to INT\_MAX)  
\-localaddr         <string>     ED.... Choose local IP address  
\-pkt\_size          <int>        ED.... Set size of UDP packets (from 0 to INT\_MAX)  
\-reuse             <int>        ED.... Explicitly allow or disallow reusing UDP sockets (from 0 to 1)  
\-ttl               <int>        E..... Set the time to live value (for multicast only) (from 0 to INT\_MAX)  
\-connect           <int>        ED.... Should connect() be called on socket (from 0 to 1)  
\-fifo\_size         <int>        .D.... Set the UDP receiving circular buffer size, expressed as a number of packets with size of 188 bytes (from 0 to INT\_MAX)  
\-overrun\_nonfatal  <int>        .D.... Survive in case of UDP receiving circular buffer overrun (from 0 to 1)  
\-timeout           <int>        .D.... In read mode: if no data arrived in more than this time interval, raise error (from 0 to INT\_MAX)  
  
  
librtmp protocol AVOptions:  
\-rtmp\_app          <string>     ED.... Name of application to connect to on the RTMP server  
\-rtmp\_playpath     <string>     ED.... Stream identifier to play or to publish  
  
  
librtmpe protocol AVOptions:  
\-rtmp\_app          <string>     ED.... Name of application to connect to on the RTMP server  
\-rtmp\_playpath     <string>     ED.... Stream identifier to play or to publish  
  
  
librtmps protocol AVOptions:  
\-rtmp\_app          <string>     ED.... Name of application to connect to on the RTMP server  
\-rtmp\_playpath     <string>     ED.... Stream identifier to play or to publish  
  
  
librtmpt protocol AVOptions:  
\-rtmp\_app          <string>     ED.... Name of application to connect to on the RTMP server  
\-rtmp\_playpath     <string>     ED.... Stream identifier to play or to publish  
  
  
librtmpte protocol AVOptions:  
\-rtmp\_app          <string>     ED.... Name of application to connect to on the RTMP server  
\-rtmp\_playpath     <string>     ED.... Stream identifier to play or to publish  
  
  
dshow indev AVOptions:  
\-video\_size        <image\_size> .D.... set video size given a string such as 640x480 or hd720.  
\-pixel\_format      <pix\_fmt>    .D.... set video pixel format  
\-framerate         <string>     .D.... set video frame rate  
\-sample\_rate       <int>        .D.... set audio sample rate (from 0 to INT\_MAX)  
\-sample\_size       <int>        .D.... set audio sample size (from 0 to 16)  
\-channels          <int>        .D.... set number of audio channels, such as 1 or 2 (from 0 to INT\_MAX)  
\-list\_devices      <int>        .D.... list available devices (from 0 to 1)  
   true                         .D....   
   false                        .D....   
\-list\_options      <int>        .D.... list available options for specified device (from 0 to 1)  
   true                         .D....   
   false                        .D....   
\-video\_device\_number <int>        .D.... set video device number for devices with same name (starts at 0) (from 0 to INT\_MAX)  
\-audio\_device\_number <int>        .D.... set audio device number for devices with same name (starts at 0) (from 0 to INT\_MAX)  
\-audio\_buffer\_size <int>        .D.... set audio device buffer latency size in milliseconds (default is the device's default) (from 0 to INT\_MAX)  
  
  
lavfi indev AVOptions:  
\-graph             <string>     .D.... set libavfilter graph  
\-graph\_file        <string>     .D.... set libavfilter graph filename  
\-dumpgraph         <string>     .D.... dump graph to stderr  
  
  
VFW indev AVOptions:  
\-video\_size        <string>     .D.... A string describing frame size, such as 640x480 or hd720.  
\-framerate         <string>     .D....   
  
  
Artworx Data Format demuxer AVOptions:  
\-linespeed         <int>        .D.... set simulated line speed (bytes per second) (from 1 to INT\_MAX)  
\-video\_size        <string>     .D.... set video size, such as 640x480 or hd720.  
\-framerate         <string>     .D.... set framerate (frames per second)  
  
  
aqtdec AVOptions:  
\-subfps            <rational>   .D...S set the movie frame rate (from 0 to INT\_MAX)  
  
  
asf demuxer AVOptions:  
\-no\_resync\_search  <int>        .D.... Don't try to resynchronize by looking for a certain optional start code (from 0 to 1)  
  
  
avi AVOptions:  
\-use\_odml          <int>        .D.... use odml index (from -1 to 1)  
  
  
Binary text demuxer AVOptions:  
\-linespeed         <int>        .D.... set simulated line speed (bytes per second) (from 1 to INT\_MAX)  
\-video\_size        <string>     .D.... set video size, such as 640x480 or hd720.  
\-framerate         <string>     .D.... set framerate (frames per second)  
  
  
cavsvideo demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
CDXL demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 1 to INT\_MAX)  
\-framerate         <string>     .D....   
  
  
dirac demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
dnxhd demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
flvdec AVOptions:  
\-flv\_metadata      <int>        .D.V.. Allocate streams according the onMetaData array (from 0 to 1)  
  
  
g729 demuxer AVOptions:  
\-bit\_rate          <int>        .D....  (from 0 to INT\_MAX)  
  
  
GIF demuxer AVOptions:  
\-min\_delay         <int>        .D.... minimum valid delay between frames (in hundredths of second) (from 0 to 6000)  
\-default\_delay     <int>        .D.... default delay between frames (in hundredths of second) (from 0 to 6000)  
  
  
gsm demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 1 to 6.50753e+007)  
  
  
h261 demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
h263 demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
h264 demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
iCE Draw File demuxer AVOptions:  
\-linespeed         <int>        .D.... set simulated line speed (bytes per second) (from 1 to INT\_MAX)  
\-video\_size        <string>     .D.... set video size, such as 640x480 or hd720.  
\-framerate         <string>     .D.... set framerate (frames per second)  
  
  
image2 demuxer AVOptions:  
\-framerate         <string>     .D.... set the video framerate  
\-loop              <int>        .D.... force loop over input file sequence (from 0 to 1)  
\-pattern\_type      <int>        .D.... set pattern type (from 0 to INT\_MAX)  
   glob\_sequence                .D.... glob/sequence pattern type  
   glob                         .D.... glob pattern type  
   sequence                     .D.... glob pattern type  
\-pixel\_format      <string>     .D.... set video pixel format  
\-start\_number      <int>        .D.... set first number in the sequence (from 0 to INT\_MAX)  
\-start\_number\_range <int>        .D.... set range for looking at the first sequence number (from 1 to INT\_MAX)  
\-video\_size        <string>     .D.... set video size  
\-frame\_size        <int>        .D.... force frame size in bytes (from 0 to INT\_MAX)  
  
  
image2pipe demuxer AVOptions:  
\-framerate         <string>     .D.... set the video framerate  
\-loop              <int>        .D.... force loop over input file sequence (from 0 to 1)  
\-pattern\_type      <int>        .D.... set pattern type (from 0 to INT\_MAX)  
   glob\_sequence                .D.... glob/sequence pattern type  
   glob                         .D.... glob pattern type  
   sequence                     .D.... glob pattern type  
\-pixel\_format      <string>     .D.... set video pixel format  
\-start\_number      <int>        .D.... set first number in the sequence (from 0 to INT\_MAX)  
\-start\_number\_range <int>        .D.... set range for looking at the first sequence number (from 1 to INT\_MAX)  
\-video\_size        <string>     .D.... set video size  
\-frame\_size        <int>        .D.... force frame size in bytes (from 0 to INT\_MAX)  
  
  
ingenient demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
m4v demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
mjpeg demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
mov,mp4,m4a,3gp,3g2,mj2 AVOptions:  
\-use\_absolute\_path <int>        .D.V.. allow using absolute path when opening alias, this is a possible security issue (from 0 to 1)  
\-ignore\_editlist   <int>        .D.V..  (from 0 to 1)  
  
  
mpegtsraw demuxer AVOptions:  
\-compute\_pcr       <int>        .D.... Compute exact PCR for each transport stream packet. (from 0 to 1)  
  
  
mpegvideo demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
alaw demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
mulaw demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
f64be demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
f64le demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
f32be demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
f32le demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
s32be demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
s32le demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
s24be demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
s24le demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
s16be demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
s16le demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
s8 demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
u32be demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
u32le demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
u24be demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
u24le demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
u16be demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
u16le demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
u8 demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-channels          <int>        .D....  (from 0 to INT\_MAX)  
  
  
rawvideo demuxer AVOptions:  
\-video\_size        <string>     .D.... A string describing frame size, such as 640x480 or hd720.  
\-pixel\_format      <string>     .D....   
\-framerate         <string>     .D....   
  
  
RTP demuxer AVOptions:  
\-rtp\_flags         <flags>      .D.... RTP flags  
   filter\_src                   .D.... Only receive packets from the negotiated peer IP  
   listen                       .D.... Wait for incoming connections  
\-reorder\_queue\_size <int>        .D.... Number of packets to buffer for handling of reordered packets (from -1 to INT\_MAX)  
  
  
RTSP demuxer AVOptions:  
\-initial\_pause     <int>        .D.... Don't start playing the stream immediately (from 0 to 1)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-rtsp\_transport    <flags>      ED.... RTSP transport protocols  
   udp                          ED.... UDP  
   tcp                          ED.... TCP  
   udp\_multicast                .D.... UDP multicast  
   http                         .D.... HTTP tunneling  
\-rtsp\_flags        <flags>      .D.... RTSP flags  
   filter\_src                   .D.... Only receive packets from the negotiated peer IP  
   listen                       .D.... Wait for incoming connections  
\-allowed\_media\_types <flags>      .D.... Media types to accept from the server  
   video                        .D.... Video  
   audio                        .D.... Audio  
   data                         .D.... Data  
\-min\_port          <int>        ED.... Minimum local UDP port (from 0 to 65535)  
\-max\_port          <int>        ED.... Maximum local UDP port (from 0 to 65535)  
\-timeout           <int>        .D.... Maximum timeout (in seconds) to wait for incoming connections. -1 is infinite. Implies flag listen (from INT\_MIN to INT\_MAX)  
\-reorder\_queue\_size <int>        .D.... Number of packets to buffer for handling of reordered packets (from -1 to INT\_MAX)  
  
  
sbg\_demuxer AVOptions:  
\-sample\_rate       <int>        .D....  (from 0 to INT\_MAX)  
\-frame\_size        <int>        .D....  (from 0 to INT\_MAX)  
\-max\_file\_size     <int>        .D....  (from 0 to INT\_MAX)  
  
  
SDP demuxer AVOptions:  
\-sdp\_flags         <flags>      .D.... SDP flags  
   filter\_src                   .D.... Only receive packets from the negotiated peer IP  
   listen                       .D.... Wait for incoming connections  
   custom\_io                    .D.... Use custom IO  
\-allowed\_media\_types <flags>      .D.... Media types to accept from the server  
   video                        .D.... Video  
   audio                        .D.... Audio  
   data                         .D.... Data  
\-reorder\_queue\_size <int>        .D.... Number of packets to buffer for handling of reordered packets (from -1 to INT\_MAX)  
  
  
tedcaptions\_demuxer AVOptions:  
\-start\_time        <int64>      .D...S set the start time (offset) of the subtitles, in ms (from I64\_MIN to I64\_MAX)  
  
  
TTY demuxer AVOptions:  
\-chars\_per\_frame   <int>        .D....  (from 1 to INT\_MAX)  
\-video\_size        <string>     .D.... A string describing frame size, such as 640x480 or hd720.  
\-framerate         <string>     .D....   
  
  
vc1 demuxer AVOptions:  
\-framerate         <string>     .D....   
  
  
WAV demuxer AVOptions:  
\-ignore\_length     <int>        .D.... Ignore length (from 0 to 1)  
  
  
eXtended BINary text (XBIN) demuxer AVOptions:  
\-linespeed         <int>        .D.... set simulated line speed (bytes per second) (from 1 to INT\_MAX)  
\-video\_size        <string>     .D.... set video size, such as 640x480 or hd720.  
\-framerate         <string>     .D.... set framerate (frames per second)  
  
  
caca\_outdev AVOptions:  
\-window\_size       <image\_size> E..... set window forced size  
\-window\_title      <string>     E..... set window title  
\-driver            <string>     E..... set display driver  
\-algorithm         <string>     E..... set dithering algorithm  
\-antialias         <string>     E..... set antialias method  
\-charset           <string>     E..... set charset used to render output  
\-color             <string>     E..... set color used to render output  
\-list\_drivers      <int>        E..... list available drivers (from 0 to 1)  
   true                         E.....  
   false                        E.....  
\-list\_dither       <string>     E..... list available dither options  
   algorithms                   E.....  
   antialiases                  E.....  
   charsets                     E.....  
   colors                       E.....  
  
  
sdl outdev AVOptions:  
\-window\_title      <string>     E..... set SDL window title  
\-icon\_title        <string>     E..... set SDL iconified window title  
\-window\_size       <image\_size> E..... set SDL window forced size  
  
  
AST muxer AVOptions:  
\-loopstart         <int64>      E..... Loopstart position in milliseconds. (from -1 to INT\_MAX)  
\-loopend           <int64>      E..... Loopend position in milliseconds. (from 0 to INT\_MAX)  
  
  
f4v muxer AVOptions:  
\-movflags          <flags>      E..... MOV muxer flags  
   rtphint                      E..... Add RTP hint tracks  
   empty\_moov                   E..... Make the initial moov atom empty (not supported by QuickTime)  
   frag\_keyframe                E..... Fragment at video keyframes  
   separate\_moof                E..... Write separate moof/mdat atoms for each track  
   frag\_custom                  E..... Flush fragments on caller requests  
   isml                         E..... Create a live smooth streaming feed (for pushing to a publishing point)  
   faststart                    E..... Run a second pass to put the moov at the beginning of the file  
\-moov\_size         <int>        E..... maximum moov size so it can be placed at the begin (from 0 to INT\_MAX)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-skip\_iods         <int>        E..... Skip writing iods atom. (from 0 to 1)  
\-iods\_audio\_profile <int>        E..... iods audio profile atom. (from -1 to 255)  
\-iods\_video\_profile <int>        E..... iods video profile atom. (from -1 to 255)  
\-frag\_duration     <int>        E..... Maximum fragment duration (from 0 to INT\_MAX)  
\-min\_frag\_duration <int>        E..... Minimum fragment duration (from 0 to INT\_MAX)  
\-frag\_size         <int>        E..... Maximum fragment size (from 0 to INT\_MAX)  
\-ism\_lookahead     <int>        E..... Number of lookahead entries for ISM files (from 0 to INT\_MAX)  
\-use\_editlist      <int>        E..... use edit list (from -1 to 1)  
  
  
GIF muxer AVOptions:  
\-loop              <int>        E..... Number of times to loop the output. (from 0 to 65535)  
  
  
hls muxer AVOptions:  
\-start\_number      <int64>      E..... set first number in the sequence (from 0 to I64\_MAX)  
\-hls\_time          <float>      E..... set segment length in seconds (from 0 to FLT\_MAX)  
\-hls\_list\_size     <int>        E..... set maximum number of playlist entries (from 0 to INT\_MAX)  
\-hls\_wrap          <int>        E..... set number after which the index wraps (from 0 to INT\_MAX)  
  
  
image2 muxer AVOptions:  
\-updatefirst       <int>        E.....  (from 0 to 1)  
\-start\_number      <int>        E..... first number in the sequence (from 1 to INT\_MAX)  
  
  
ipod muxer AVOptions:  
\-movflags          <flags>      E..... MOV muxer flags  
   rtphint                      E..... Add RTP hint tracks  
   empty\_moov                   E..... Make the initial moov atom empty (not supported by QuickTime)  
   frag\_keyframe                E..... Fragment at video keyframes  
   separate\_moof                E..... Write separate moof/mdat atoms for each track  
   frag\_custom                  E..... Flush fragments on caller requests  
   isml                         E..... Create a live smooth streaming feed (for pushing to a publishing point)  
   faststart                    E..... Run a second pass to put the moov at the beginning of the file  
\-moov\_size         <int>        E..... maximum moov size so it can be placed at the begin (from 0 to INT\_MAX)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-skip\_iods         <int>        E..... Skip writing iods atom. (from 0 to 1)  
\-iods\_audio\_profile <int>        E..... iods audio profile atom. (from -1 to 255)  
\-iods\_video\_profile <int>        E..... iods video profile atom. (from -1 to 255)  
\-frag\_duration     <int>        E..... Maximum fragment duration (from 0 to INT\_MAX)  
\-min\_frag\_duration <int>        E..... Minimum fragment duration (from 0 to INT\_MAX)  
\-frag\_size         <int>        E..... Maximum fragment size (from 0 to INT\_MAX)  
\-ism\_lookahead     <int>        E..... Number of lookahead entries for ISM files (from 0 to INT\_MAX)  
\-use\_editlist      <int>        E..... use edit list (from -1 to 1)  
  
  
ismv muxer AVOptions:  
\-movflags          <flags>      E..... MOV muxer flags  
   rtphint                      E..... Add RTP hint tracks  
   empty\_moov                   E..... Make the initial moov atom empty (not supported by QuickTime)  
   frag\_keyframe                E..... Fragment at video keyframes  
   separate\_moof                E..... Write separate moof/mdat atoms for each track  
   frag\_custom                  E..... Flush fragments on caller requests  
   isml                         E..... Create a live smooth streaming feed (for pushing to a publishing point)  
   faststart                    E..... Run a second pass to put the moov at the beginning of the file  
\-moov\_size         <int>        E..... maximum moov size so it can be placed at the begin (from 0 to INT\_MAX)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-skip\_iods         <int>        E..... Skip writing iods atom. (from 0 to 1)  
\-iods\_audio\_profile <int>        E..... iods audio profile atom. (from -1 to 255)  
\-iods\_video\_profile <int>        E..... iods video profile atom. (from -1 to 255)  
\-frag\_duration     <int>        E..... Maximum fragment duration (from 0 to INT\_MAX)  
\-min\_frag\_duration <int>        E..... Minimum fragment duration (from 0 to INT\_MAX)  
\-frag\_size         <int>        E..... Maximum fragment size (from 0 to INT\_MAX)  
\-ism\_lookahead     <int>        E..... Number of lookahead entries for ISM files (from 0 to INT\_MAX)  
\-use\_editlist      <int>        E..... use edit list (from -1 to 1)  
  
  
LATM/LOAS muxer AVOptions:  
\-smc-interval      <int>        E..... StreamMuxConfig interval. (from 1 to 65535)  
  
  
mov muxer AVOptions:  
\-movflags          <flags>      E..... MOV muxer flags  
   rtphint                      E..... Add RTP hint tracks  
   empty\_moov                   E..... Make the initial moov atom empty (not supported by QuickTime)  
   frag\_keyframe                E..... Fragment at video keyframes  
   separate\_moof                E..... Write separate moof/mdat atoms for each track  
   frag\_custom                  E..... Flush fragments on caller requests  
   isml                         E..... Create a live smooth streaming feed (for pushing to a publishing point)  
   faststart                    E..... Run a second pass to put the moov at the beginning of the file  
\-moov\_size         <int>        E..... maximum moov size so it can be placed at the begin (from 0 to INT\_MAX)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-skip\_iods         <int>        E..... Skip writing iods atom. (from 0 to 1)  
\-iods\_audio\_profile <int>        E..... iods audio profile atom. (from -1 to 255)  
\-iods\_video\_profile <int>        E..... iods video profile atom. (from -1 to 255)  
\-frag\_duration     <int>        E..... Maximum fragment duration (from 0 to INT\_MAX)  
\-min\_frag\_duration <int>        E..... Minimum fragment duration (from 0 to INT\_MAX)  
\-frag\_size         <int>        E..... Maximum fragment size (from 0 to INT\_MAX)  
\-ism\_lookahead     <int>        E..... Number of lookahead entries for ISM files (from 0 to INT\_MAX)  
\-use\_editlist      <int>        E..... use edit list (from -1 to 1)  
  
  
MP3 muxer AVOptions:  
\-id3v2\_version     <int>        E..... Select ID3v2 version to write. Currently 3 and 4 are supported. (from 3 to 4)  
\-write\_id3v1       <int>        E..... Enable ID3v1 writing. ID3v1 tags are written in UTF-8 which may not be supported by most software. (from 0 to 1)  
  
  
mp4 muxer AVOptions:  
\-movflags          <flags>      E..... MOV muxer flags  
   rtphint                      E..... Add RTP hint tracks  
   empty\_moov                   E..... Make the initial moov atom empty (not supported by QuickTime)  
   frag\_keyframe                E..... Fragment at video keyframes  
   separate\_moof                E..... Write separate moof/mdat atoms for each track  
   frag\_custom                  E..... Flush fragments on caller requests  
   isml                         E..... Create a live smooth streaming feed (for pushing to a publishing point)  
   faststart                    E..... Run a second pass to put the moov at the beginning of the file  
\-moov\_size         <int>        E..... maximum moov size so it can be placed at the begin (from 0 to INT\_MAX)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-skip\_iods         <int>        E..... Skip writing iods atom. (from 0 to 1)  
\-iods\_audio\_profile <int>        E..... iods audio profile atom. (from -1 to 255)  
\-iods\_video\_profile <int>        E..... iods video profile atom. (from -1 to 255)  
\-frag\_duration     <int>        E..... Maximum fragment duration (from 0 to INT\_MAX)  
\-min\_frag\_duration <int>        E..... Minimum fragment duration (from 0 to INT\_MAX)  
\-frag\_size         <int>        E..... Maximum fragment size (from 0 to INT\_MAX)  
\-ism\_lookahead     <int>        E..... Number of lookahead entries for ISM files (from 0 to INT\_MAX)  
\-use\_editlist      <int>        E..... use edit list (from -1 to 1)  
  
  
mpeg muxer AVOptions:  
\-muxrate           <int>        E..... (from 0 to INT\_MAX)  
\-preload           <int>        E..... Initial demux-decode delay in microseconds. (from 0 to INT\_MAX)  
  
  
vcd muxer AVOptions:  
\-muxrate           <int>        E..... (from 0 to INT\_MAX)  
\-preload           <int>        E..... Initial demux-decode delay in microseconds. (from 0 to INT\_MAX)  
  
  
dvd muxer AVOptions:  
\-muxrate           <int>        E..... (from 0 to INT\_MAX)  
\-preload           <int>        E..... Initial demux-decode delay in microseconds. (from 0 to INT\_MAX)  
  
  
svcd muxer AVOptions:  
\-muxrate           <int>        E..... (from 0 to INT\_MAX)  
\-preload           <int>        E..... Initial demux-decode delay in microseconds. (from 0 to INT\_MAX)  
  
  
vob muxer AVOptions:  
\-muxrate           <int>        E..... (from 0 to INT\_MAX)  
\-preload           <int>        E..... Initial demux-decode delay in microseconds. (from 0 to INT\_MAX)  
  
  
MPEGTS muxer AVOptions:  
\-mpegts\_transport\_stream\_id <int>        E..... Set transport\_stream\_id field. (from 1 to 65535)  
\-mpegts\_original\_network\_id <int>        E..... Set original\_network\_id field. (from 1 to 65535)  
\-mpegts\_service\_id <int>        E..... Set service\_id field. (from 1 to 65535)  
\-mpegts\_pmt\_start\_pid <int>        E..... Set the first pid of the PMT. (from 16 to 7936)  
\-mpegts\_start\_pid  <int>        E..... Set the first pid. (from 256 to 3840)  
\-mpegts\_m2ts\_mode  <int>        E..... Enable m2ts mode. (from -1 to 1)  
\-muxrate           <int>        E..... (from 0 to INT\_MAX)  
\-pes\_payload\_size  <int>        E..... Minimum PES packet payload in bytes (from 0 to INT\_MAX)  
\-mpegts\_flags      <flags>      E..... MPEG-TS muxing flags  
   resend\_headers               E..... Reemit PAT/PMT before writing the next packet  
   latm                         E..... Use LATM packetization for AAC  
\-resend\_headers    <int>        E..... Reemit PAT/PMT before writing the next packet (from 0 to INT\_MAX)  
\-mpegts\_copyts     <int>        E..... dont offset dts/pts (from -1 to 1)  
  
  
Ogg muxer AVOptions:  
\-oggpagesize       <int>        E..... Set preferred Ogg page size. (from 0 to 65025)  
\-pagesize          <int>        E..... preferred page size in bytes (deprecated) (from 0 to 65025)  
\-page\_duration     <int>        E..... preferred page duration, in microseconds (from 0 to I64\_MAX)  
  
  
psp muxer AVOptions:  
\-movflags          <flags>      E..... MOV muxer flags  
   rtphint                      E..... Add RTP hint tracks  
   empty\_moov                   E..... Make the initial moov atom empty (not supported by QuickTime)  
   frag\_keyframe                E..... Fragment at video keyframes  
   separate\_moof                E..... Write separate moof/mdat atoms for each track  
   frag\_custom                  E..... Flush fragments on caller requests  
   isml                         E..... Create a live smooth streaming feed (for pushing to a publishing point)  
   faststart                    E..... Run a second pass to put the moov at the beginning of the file  
\-moov\_size         <int>        E..... maximum moov size so it can be placed at the begin (from 0 to INT\_MAX)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-skip\_iods         <int>        E..... Skip writing iods atom. (from 0 to 1)  
\-iods\_audio\_profile <int>        E..... iods audio profile atom. (from -1 to 255)  
\-iods\_video\_profile <int>        E..... iods video profile atom. (from -1 to 255)  
\-frag\_duration     <int>        E..... Maximum fragment duration (from 0 to INT\_MAX)  
\-min\_frag\_duration <int>        E..... Minimum fragment duration (from 0 to INT\_MAX)  
\-frag\_size         <int>        E..... Maximum fragment size (from 0 to INT\_MAX)  
\-ism\_lookahead     <int>        E..... Number of lookahead entries for ISM files (from 0 to INT\_MAX)  
\-use\_editlist      <int>        E..... use edit list (from -1 to 1)  
  
  
RTP muxer AVOptions:  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-payload\_type      <int>        E..... Specify RTP payload type (from -1 to 127)  
\-ssrc              <int>        E..... Stream identifier (from INT\_MIN to INT\_MAX)  
\-cname             <string>     E..... CNAME to include in RTCP SR packets  
  
  
RTSP muxer AVOptions:  
\-initial\_pause     <int>        .D.... Don't start playing the stream immediately (from 0 to 1)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-rtsp\_transport    <flags>      ED.... RTSP transport protocols  
   udp                          ED.... UDP  
   tcp                          ED.... TCP  
   udp\_multicast                .D.... UDP multicast  
   http                         .D.... HTTP tunneling  
\-rtsp\_flags        <flags>      .D.... RTSP flags  
   filter\_src                   .D.... Only receive packets from the negotiated peer IP  
   listen                       .D.... Wait for incoming connections  
\-allowed\_media\_types <flags>      .D.... Media types to accept from the server  
   video                        .D.... Video  
   audio                        .D.... Audio  
   data                         .D.... Data  
\-min\_port          <int>        ED.... Minimum local UDP port (from 0 to 65535)  
\-max\_port          <int>        ED.... Maximum local UDP port (from 0 to 65535)  
\-timeout           <int>        .D.... Maximum timeout (in seconds) to wait for incoming connections. -1 is infinite. Implies flag listen (from INT\_MIN to INT\_MAX)  
\-reorder\_queue\_size <int>        .D.... Number of packets to buffer for handling of reordered packets (from -1 to INT\_MAX)  
  
  
segment muxer AVOptions:  
\-reference\_stream  <string>     E..... set reference stream  
\-segment\_format    <string>     E..... set container format used for the segments  
\-segment\_list      <string>     E..... set the segment list filename  
\-segment\_list\_flags <flags>      E..... set flags affecting segment list generation  
   cache                        E..... allow list caching  
   live                         E..... enable live-friendly list generation (useful for HLS)  
\-segment\_list\_size <int>        E..... set the maximum number of playlist entries (from 0 to INT\_MAX)  
\-segment\_list\_type <int>        E..... set the segment list type (from -1 to 3)  
   flat                         E..... flat format  
   csv                          E..... csv format  
   ext                          E..... extended format  
   m3u8                         E..... M3U8 format  
   hls                          E..... Apple HTTP Live Streaming compatible  
\-segment\_time      <string>     E..... set segment duration  
\-segment\_time\_delta <string>     E..... set approximation value used for the segment times  
\-segment\_times     <string>     E..... set segment split time points  
\-segment\_frames    <string>     E..... set segment split frame numbers  
\-segment\_wrap      <int>        E..... set number after which the index wraps (from 0 to INT\_MAX)  
\-segment\_start\_number <int>        E..... set the sequence number of the first segment (from 0 to INT\_MAX)  
\-individual\_header\_trailer <int>        E..... write header/trailer to each segment (from 0 to 1)  
\-write\_header\_trailer <int>        E..... write a header to the first segment and a trailer to the last one (from 0 to 1)  
\-reset\_timestamps  <int>        E..... reset timestamps at the begin of each segment (from 0 to 1)  
  
  
stream\_segment muxer AVOptions:  
\-reference\_stream  <string>     E..... set reference stream  
\-segment\_format    <string>     E..... set container format used for the segments  
\-segment\_list      <string>     E..... set the segment list filename  
\-segment\_list\_flags <flags>      E..... set flags affecting segment list generation  
   cache                        E..... allow list caching  
   live                         E..... enable live-friendly list generation (useful for HLS)  
\-segment\_list\_size <int>        E..... set the maximum number of playlist entries (from 0 to INT\_MAX)  
\-segment\_list\_type <int>        E..... set the segment list type (from -1 to 3)  
   flat                         E..... flat format  
   csv                          E..... csv format  
   ext                          E..... extended format  
   m3u8                         E..... M3U8 format  
   hls                          E..... Apple HTTP Live Streaming compatible  
\-segment\_time      <string>     E..... set segment duration  
\-segment\_time\_delta <string>     E..... set approximation value used for the segment times  
\-segment\_times     <string>     E..... set segment split time points  
\-segment\_frames    <string>     E..... set segment split frame numbers  
\-segment\_wrap      <int>        E..... set number after which the index wraps (from 0 to INT\_MAX)  
\-segment\_start\_number <int>        E..... set the sequence number of the first segment (from 0 to INT\_MAX)  
\-individual\_header\_trailer <int>        E..... write header/trailer to each segment (from 0 to 1)  
\-write\_header\_trailer <int>        E..... write a header to the first segment and a trailer to the last one (from 0 to 1)  
\-reset\_timestamps  <int>        E..... reset timestamps at the begin of each segment (from 0 to 1)  
  
  
smooth streaming muxer AVOptions:  
\-window\_size       <int>        E..... number of fragments kept in the manifest (from 0 to INT\_MAX)  
\-extra\_window\_size <int>        E..... number of fragments kept outside of the manifest before removing from disk (from 0 to INT\_MAX)  
\-lookahead\_count   <int>        E..... number of lookahead fragments (from 0 to INT\_MAX)  
\-min\_frag\_duration <int64>      E..... minimum fragment duration (in microseconds) (from 0 to INT\_MAX)  
\-remove\_at\_exit    <int>        E..... remove all fragments when finished (from 0 to 1)  
  
  
spdif AVOptions:  
\-spdif\_flags       <flags>      E..... IEC 61937 encapsulation flags  
   be                           E..... output in big-endian format (for use as s16be)  
\-dtshd\_rate        <int>        E..... mux complete DTS frames in HD mode at the specified IEC958 rate (in Hz, default 0=disabled) (from 0 to 768000)  
\-dtshd\_fallback\_time <int>        E..... min secs to strip HD for after an overflow (-1: till the end, default 60) (from -1 to INT\_MAX)  
  
  
tg2 muxer AVOptions:  
\-movflags          <flags>      E..... MOV muxer flags  
   rtphint                      E..... Add RTP hint tracks  
   empty\_moov                   E..... Make the initial moov atom empty (not supported by QuickTime)  
   frag\_keyframe                E..... Fragment at video keyframes  
   separate\_moof                E..... Write separate moof/mdat atoms for each track  
   frag\_custom                  E..... Flush fragments on caller requests  
   isml                         E..... Create a live smooth streaming feed (for pushing to a publishing point)  
   faststart                    E..... Run a second pass to put the moov at the beginning of the file  
\-moov\_size         <int>        E..... maximum moov size so it can be placed at the begin (from 0 to INT\_MAX)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-skip\_iods         <int>        E..... Skip writing iods atom. (from 0 to 1)  
\-iods\_audio\_profile <int>        E..... iods audio profile atom. (from -1 to 255)  
\-iods\_video\_profile <int>        E..... iods video profile atom. (from -1 to 255)  
\-frag\_duration     <int>        E..... Maximum fragment duration (from 0 to INT\_MAX)  
\-min\_frag\_duration <int>        E..... Minimum fragment duration (from 0 to INT\_MAX)  
\-frag\_size         <int>        E..... Maximum fragment size (from 0 to INT\_MAX)  
\-ism\_lookahead     <int>        E..... Number of lookahead entries for ISM files (from 0 to INT\_MAX)  
\-use\_editlist      <int>        E..... use edit list (from -1 to 1)  
  
  
tgp muxer AVOptions:  
\-movflags          <flags>      E..... MOV muxer flags  
   rtphint                      E..... Add RTP hint tracks  
   empty\_moov                   E..... Make the initial moov atom empty (not supported by QuickTime)  
   frag\_keyframe                E..... Fragment at video keyframes  
   separate\_moof                E..... Write separate moof/mdat atoms for each track  
   frag\_custom                  E..... Flush fragments on caller requests  
   isml                         E..... Create a live smooth streaming feed (for pushing to a publishing point)  
   faststart                    E..... Run a second pass to put the moov at the beginning of the file  
\-moov\_size         <int>        E..... maximum moov size so it can be placed at the begin (from 0 to INT\_MAX)  
\-rtpflags          <flags>      E..... RTP muxer flags  
   latm                         E..... Use MP4A-LATM packetization instead of MPEG4-GENERIC for AAC  
   rfc2190                      E..... Use RFC 2190 packetization instead of RFC 4629 for H.263  
   skip\_rtcp                    E..... Don't send RTCP sender reports  
   h264\_mode0                   E..... Use mode 0 for H264 in RTP  
\-skip\_iods         <int>        E..... Skip writing iods atom. (from 0 to 1)  
\-iods\_audio\_profile <int>        E..... iods audio profile atom. (from -1 to 255)  
\-iods\_video\_profile <int>        E..... iods video profile atom. (from -1 to 255)  
\-frag\_duration     <int>        E..... Maximum fragment duration (from 0 to INT\_MAX)  
\-min\_frag\_duration <int>        E..... Minimum fragment duration (from 0 to INT\_MAX)  
\-frag\_size         <int>        E..... Maximum fragment size (from 0 to INT\_MAX)  
\-ism\_lookahead     <int>        E..... Number of lookahead entries for ISM files (from 0 to INT\_MAX)  
\-use\_editlist      <int>        E..... use edit list (from -1 to 1)  
  
  
WAV muxer AVOptions:  
\-write\_bext        <int>        E..... Write BEXT chunk. (from 0 to 1)  
  
  
SWScaler AVOptions:  
\-sws\_flags         <flags>      E..V.. scaler flags  
   fast\_bilinear                E..V.. fast bilinear  
   bilinear                     E..V.. bilinear  
   bicubic                      E..V.. bicubic  
   experimental                 E..V.. experimental  
   neighbor                     E..V.. nearest neighbor  
   area                         E..V.. averaging area  
   bicublin                     E..V.. luma bicubic, chroma bilinear  
   gauss                        E..V.. gaussian  
   sinc                         E..V.. sinc  
   lanczos                      E..V.. lanczos  
   spline                       E..V.. natural bicubic spline  
   print\_info                   E..V.. print info  
   accurate\_rnd                 E..V.. accurate rounding  
   full\_chroma\_int              E..V.. full chroma interpolation  
   full\_chroma\_inp              E..V.. full chroma input  
   bitexact                     E..V..   
   error\_diffusion              E..V.. error diffusion dither  
\-srcw              <int>        E..V.. source width (from 1 to INT\_MAX)  
\-srch              <int>        E..V.. source height (from 1 to INT\_MAX)  
\-dstw              <int>        E..V.. destination width (from 1 to INT\_MAX)  
\-dsth              <int>        E..V.. destination height (from 1 to INT\_MAX)  
\-src\_format        <int>        E..V.. source format (from 0 to 316)  
\-dst\_format        <int>        E..V.. destination format (from 0 to 316)  
\-src\_range         <int>        E..V.. source range (from 0 to 1)  
\-dst\_range         <int>        E..V.. destination range (from 0 to 1)  
\-param0            <double>     E..V.. scaler param 0 (from INT\_MIN to INT\_MAX)  
\-param1            <double>     E..V.. scaler param 1 (from INT\_MIN to INT\_MAX)  
  
  
SWResampler AVOptions:  
\-ich               <int>        ....A. set input channel count (from 0 to 32)  
\-in\_channel\_count  <int>        ....A. set input channel count (from 0 to 32)  
\-och               <int>        ....A. set output channel count (from 0 to 32)  
\-out\_channel\_count <int>        ....A. set output channel count (from 0 to 32)  
\-uch               <int>        ....A. set used channel count (from 0 to 32)  
\-used\_channel\_count <int>        ....A. set used channel count (from 0 to 32)  
\-isr               <int>        ....A. set input sample rate (from 0 to INT\_MAX)  
\-in\_sample\_rate    <int>        ....A. set input sample rate (from 0 to INT\_MAX)  
\-osr               <int>        ....A. set output sample rate (from 0 to INT\_MAX)  
\-out\_sample\_rate   <int>        ....A. set output sample rate (from 0 to INT\_MAX)  
\-isf               <sample\_fmt> ....A. set input sample format  
\-in\_sample\_fmt     <sample\_fmt> ....A. set input sample format  
\-osf               <sample\_fmt> ....A. set output sample format  
\-out\_sample\_fmt    <sample\_fmt> ....A. set output sample format  
\-tsf               <sample\_fmt> ....A. set internal sample format  
\-internal\_sample\_fmt <sample\_fmt> ....A. set internal sample format  
\-icl               <int64>      ....A. set input channel layout (from 0 to I64\_MAX)  
\-in\_channel\_layout <int64>      ....A. set input channel layout (from 0 to I64\_MAX)  
\-ocl               <int64>      ....A. set output channel layout (from 0 to I64\_MAX)  
\-out\_channel\_layout <int64>      ....A. set output channel layout (from 0 to I64\_MAX)  
\-clev              <float>      ....A. set center mix level (from -32 to 32)  
\-center\_mix\_level  <float>      ....A. set center mix level (from -32 to 32)  
\-slev              <float>      ....A. set surround mix level (from -32 to 32)  
\-surround\_mix\_level <float>      ....A. set surround mix Level (from -32 to 32)  
\-lfe\_mix\_level     <float>      ....A. set LFE mix level (from -32 to 32)  
\-rmvol             <float>      ....A. set rematrix volume (from -1000 to 1000)  
\-rematrix\_volume   <float>      ....A. set rematrix volume (from -1000 to 1000)  
\-flags             <flags>      ....A. set flags  
   res                          ....A. force resampling  
\-swr\_flags         <flags>      ....A. set flags  
   res                          ....A. force resampling  
\-dither\_scale      <float>      ....A. set dither scale (from 0 to INT\_MAX)  
\-dither\_method     <int>        ....A. set dither method (from 0 to 71)  
   rectangular                  ....A. select rectangular dither  
   triangular                   ....A. select triangular dither  
   triangular\_hp                ....A. select triangular dither with high pass  
   lipshitz                     ....A. select lipshitz noise shaping dither  
   shibata                      ....A. select shibata noise shaping dither  
   low\_shibata                  ....A. select low shibata noise shaping dither  
   high\_shibata                 ....A. select high shibata noise shaping dither  
   f\_weighted                   ....A. select f-weighted noise shaping dither  
   modified\_e\_weighted              ....A. select modified-e-weighted noise shaping dither  
   improved\_e\_weighted              ....A. select improved-e-weighted noise shaping dither  
\-filter\_size       <int>        ....A. set swr resampling filter size (from 0 to INT\_MAX)  
\-phase\_shift       <int>        ....A. set swr resampling phase shift (from 0 to 30)  
\-linear\_interp     <int>        ....A. enable linear interpolation (from 0 to 1)  
\-cutoff            <double>     ....A. set cutoff frequency ratio (from 0 to 1)  
\-resampler         <int>        ....A. set resampling Engine (from 0 to 1)  
   swr                          ....A. select SW Resampler  
   soxr                         ....A. select SoX Resampler  
\-precision         <double>     ....A. set soxr resampling precision (in bits) (from 15 to 33)  
\-cheby             <int>        ....A. enable soxr Chebyshev passband & higher-precision irrational ratio approximation (from 0 to 1)  
\-min\_comp          <float>      ....A. set minimum difference between timestamps and audio data (in seconds) below which no timestamp compensation of either kind is applied (from 0 to FLT\_MAX)  
\-min\_hard\_comp     <float>      ....A. set minimum difference between timestamps and audio data (in seconds) to trigger padding/trimming the data. (from 0 to INT\_MAX)  
\-comp\_duration     <float>      ....A. set duration (in seconds) over which data is stretched/squeezed to make it match the timestamps. (from 0 to INT\_MAX)  
\-max\_soft\_comp     <float>      ....A. set maximum factor by which data is stretched/squeezed to make it match the timestamps. (from INT\_MIN to INT\_MAX)  
\-async             <float>      ....A. simplified 1 parameter audio timestamp matching, 0(disabled), 1(filling and trimming), >1(maximum stretch/squeeze in samples per second) (from INT\_MIN to INT\_MAX)  
\-matrix\_encoding   <int>        ....A. set matrixed stereo encoding (from 0 to 2)  
   none                         ....A. select none  
   dolby                        ....A. select Dolby  
   dplii                        ....A. select Dolby Pro Logic II  
\-filter\_type       <int>        ....A. select swr filter type (from 0 to 2)  
   cubic                        ....A. select cubic  
   blackman\_nuttall              ....A. select Blackman Nuttall Windowed Sinc  
   kaiser                       ....A. select Kaiser Windowed Sinc  
\-kaiser\_beta       <int>        ....A. set swr Kaiser Window Beta (from 2 to 16)  
  
  
aformat AVOptions:  
\-sample\_fmts       <string>     ..F.A. A comma-separated list of sample formats.  
\-sample\_rates      <string>     ..F.A. A comma-separated list of sample rates.  
\-channel\_layouts   <string>     ..F.A. A comma-separated list of channel layouts.  
  
  
amerge AVOptions:  
\-inputs            <int>        ..F.A. specify the number of inputs (from 2 to 32)  
  
  
amix AVOptions:  
\-inputs            <int>        ..F.A. Number of inputs. (from 1 to 32)  
\-duration          <int>        ..F.A. How to determine the end-of-stream. (from 0 to 2)  
   longest                      ..F.A. Duration of longest input.  
   shortest                     ..F.A. Duration of shortest input.  
   first                        ..F.A. Duration of first input.  
\-dropout\_transition <float>      ..F.A. Transition time, in seconds, for volume renormalization when an input stream ends. (from 0 to INT\_MAX)  
  
  
apad AVOptions:  
\-packet\_size       <int>        ..F.A. set silence packet size (from 0 to INT\_MAX)  
\-pad\_len           <int64>      ..F.A. number of samples of silence to add (from 0 to I64\_MAX)  
\-whole\_len         <int64>      ..F.A. target number of samples in the audio stream (from 0 to I64\_MAX)  
  
  
aselect AVOptions:  
\-expr              <string>     ..F... set selection expression  
\-e                 <string>     ..F... set selection expression  
  
  
asendcmd AVOptions:  
\-commands          <string>     ..F... set commands  
\-c                 <string>     ..F... set commands  
\-filename          <string>     ..F... set commands file  
\-f                 <string>     ..F... set commands file  
  
  
asetnsamples AVOptions:  
\-pad               <int>        ..F.A. pad last frame with zeros (from 0 to 1)  
\-p                 <int>        ..F.A. pad last frame with zeros (from 0 to 1)  
\-nb\_out\_samples    <int>        ..F.A. set the number of per-frame output samples (from 1 to INT\_MAX)  
\-n                 <int>        ..F.A. set the number of per-frame output samples (from 1 to INT\_MAX)  
  
  
channel map filter AVOptions:  
\-map               <string>     ..F.A. A comma-separated list of input channel numbers in output order.  
\-channel\_layout    <string>     ..F.A. Output channel layout.  
  
  
channelsplit AVOptions:  
\-channel\_layout    <string>     ..F.A. Input channel layout.  
  
  
ebur128 AVOptions:  
\-video             <int>        ..FV.. set video output (from 0 to 1)  
\-size              <image\_size> ..FV.. set video size  
\-meter             <int>        ..FV.. set scale meter (+9 to +18) (from 9 to 18)  
  
  
join filter AVOptions:  
\-inputs            <int>        ..F.A. Number of input streams. (from 1 to INT\_MAX)  
\-channel\_layout    <string>     ..F.A. Channel layout of the output stream.  
\-map               <string>     ..F.A. A comma-separated list of channels maps in the format 'input\_stream.input\_channel-output\_channel.  
  
  
silencedetect AVOptions:  
\-n                 <double>     ..F.A. set noise tolerance (from 0 to 1.79769e+308)  
\-noise             <double>     ..F.A. set noise tolerance (from 0 to 1.79769e+308)  
\-d                 <double>     ..F.A. set minimum duration in seconds (from 0 to 86400)  
\-duration          <double>     ..F.A. set minimum duration in seconds (from 0 to 86400)  
  
  
volume AVOptions:  
\-volume            <double>     ..F.A. set volume adjustment (from 0 to 8.38861e+006)  
\-precision         <int>        ..F.A. select mathematical precision (from 0 to 2)  
   fixed                        ..F.A. select 8-bit fixed-point  
   float                        ..F.A. select 32-bit floating-point  
   double                       ..F.A. select 64-bit floating-point  
  
  
aevalsrc AVOptions:  
\-nb\_samples        <int>        ..F.A. set the number of samples per requested frame (from 0 to INT\_MAX)  
\-n                 <int>        ..F.A. set the number of samples per requested frame (from 0 to INT\_MAX)  
\-sample\_rate       <string>     ..F.A. set the sample rate  
\-s                 <string>     ..F.A. set the sample rate  
\-duration          <string>     ..F.A. set audio duration  
\-d                 <string>     ..F.A. set audio duration  
\-channel\_layout    <string>     ..F.A. set channel layout  
\-c                 <string>     ..F.A. set channel layout  
  
  
anullsrc AVOptions:  
\-channel\_layout    <string>     ..F.A. set channel\_layout  
\-cl                <string>     ..F.A. set channel\_layout  
\-sample\_rate       <string>     ..F.A. set sample rate  
\-r                 <string>     ..F.A. set sample rate  
\-nb\_samples        <int>        ..F.A. set the number of samples per requested frame (from 0 to INT\_MAX)  
\-n                 <int>        ..F.A. set the number of samples per requested frame (from 0 to INT\_MAX)  
  
  
ass AVOptions:  
\-filename          <string>     ..FV.. set the filename of file to read  
\-f                 <string>     ..FV.. set the filename of file to read  
\-original\_size     <image\_size> ..FV.. set the size of the original video (used to scale fonts)  
  
  
blackdetect AVOptions:  
\-d                 <double>     ..FV.. set minimum detected black duration in seconds (from 0 to 1.79769e+308)  
\-black\_min\_duration <double>     ..FV.. set minimum detected black duration in seconds (from 0 to 1.79769e+308)  
\-picture\_black\_ratio\_th <double>     ..FV.. set the picture black ratio threshold (from 0 to 1)  
\-pic\_th            <double>     ..FV.. set the picture black ratio threshold (from 0 to 1)  
\-pixel\_black\_th    <double>     ..FV.. set the pixel black threshold (from 0 to 1)  
\-pix\_th            <double>     ..FV.. set the pixel black threshold (from 0 to 1)  
  
  
crop AVOptions:  
\-x                 <string>     ..FV.. set the x crop area expression  
\-y                 <string>     ..FV.. set the y crop area expression  
\-out\_w             <string>     ..FV.. set the width crop area expression  
\-w                 <string>     ..FV.. set the width crop area expression  
\-out\_h             <string>     ..FV.. set the height crop area expression  
\-h                 <string>     ..FV.. set the height crop area expression  
\-keep\_aspect       <int>        ..FV.. force packed RGB in input and output (from 0 to 1)  
  
  
delogo AVOptions:  
\-x                 <int>        ..FV.. set logo x position (from -1 to INT\_MAX)  
\-y                 <int>        ..FV.. set logo y position (from -1 to INT\_MAX)  
\-w                 <int>        ..FV.. set logo width (from -1 to INT\_MAX)  
\-h                 <int>        ..FV.. set logo height (from -1 to INT\_MAX)  
\-band              <int>        ..FV.. set delogo area band size (from -1 to INT\_MAX)  
\-t                 <int>        ..FV.. set delogo area band size (from -1 to INT\_MAX)  
\-show              <int>        ..FV.. show delogo area (from 0 to 1)  
  
  
drawbox AVOptions:  
\-x                 <int>        ..FV.. set the box top-left corner x position (from INT\_MIN to INT\_MAX)  
\-y                 <int>        ..FV.. set the box top-left corner y position (from INT\_MIN to INT\_MAX)  
\-width             <int>        ..FV.. set the box width (from 0 to INT\_MAX)  
\-w                 <int>        ..FV.. set the box width (from 0 to INT\_MAX)  
\-height            <int>        ..FV.. set the box height (from 0 to INT\_MAX)  
\-h                 <int>        ..FV.. set the box height (from 0 to INT\_MAX)  
\-color             <string>     ..FV.. set the box edge color  
\-c                 <string>     ..FV.. set the box edge color  
\-thickness         <int>        ..FV.. set the box maximum thickness (from 0 to INT\_MAX)  
\-t                 <int>        ..FV.. set the box maximum thickness (from 0 to INT\_MAX)  
  
  
drawtext AVOptions:  
\-fontfile          <string>     ..FV.. set font file  
\-text              <string>     ..FV.. set text  
\-textfile          <string>     ..FV.. set text file  
\-fontcolor         <string>     ..FV.. set foreground color  
\-boxcolor          <string>     ..FV.. set box color  
\-shadowcolor       <string>     ..FV.. set shadow color  
\-box               <int>        ..FV.. set box (from 0 to 1)  
\-fontsize          <int>        ..FV.. set font size (from 0 to INT\_MAX)  
\-x                 <string>     ..FV.. set x expression  
\-y                 <string>     ..FV.. set y expression  
\-shadowx           <int>        ..FV.. set x (from INT\_MIN to INT\_MAX)  
\-shadowy           <int>        ..FV.. set y (from INT\_MIN to INT\_MAX)  
\-tabsize           <int>        ..FV.. set tab size (from 0 to INT\_MAX)  
\-basetime          <int64>      ..FV.. set base time (from I64\_MIN to I64\_MAX)  
\-draw              <string>     ..FV.. if false do not draw  
\-expansion         <int>        ..FV.. set the expansion mode (from 0 to 2)  
   none                         ..FV.. set no expansion  
   normal                       ..FV.. set normal expansion  
   strftime                     ..FV.. set strftime expansion (deprecated)  
\-timecode          <string>     ..FV.. set initial timecode  
\-tc24hmax          <int>        ..FV.. set 24 hours max (timecode only) (from 0 to 1)  
\-timecode\_rate     <rational>   ..FV.. set rate (timecode only) (from 0 to INT\_MAX)  
\-r                 <rational>   ..FV.. set rate (timecode only) (from 0 to INT\_MAX)  
\-rate              <rational>   ..FV.. set rate (timecode only) (from 0 to INT\_MAX)  
\-reload            <int>        ..FV.. reload text file for each frame (from 0 to 1)  
\-fix\_bounds        <int>        ..FV.. if true, check and fix text coords to avoid clipping (from 0 to 1)  
\-ft\_load\_flags     <flags>      ..FV.. set font loading flags for libfreetype  
   default                      ..FV.. set default  
   no\_scale                     ..FV.. set no\_scale  
   no\_hinting                   ..FV.. set no\_hinting  
   render                       ..FV.. set render  
   no\_bitmap                    ..FV.. set no\_bitmap  
   vertical\_layout              ..FV.. set vertical\_layout  
   force\_autohint               ..FV.. set force\_autohint  
   crop\_bitmap                  ..FV.. set crop\_bitmap  
   pedantic                     ..FV.. set pedantic  
   ignore\_global\_advance\_width              ..FV.. set ignore\_global\_advance\_width  
   no\_recurse                   ..FV.. set no\_recurse  
   ignore\_transform              ..FV.. set ignore\_transform  
   monochrome                   ..FV.. set monochrome  
   linear\_design                ..FV.. set linear\_design  
   no\_autohint                  ..FV.. set no\_autohint  
  
  
edgedetect AVOptions:  
\-high              <double>     ..FV.. set high threshold (from 0 to 1)  
\-low               <double>     ..FV.. set low threshold (from 0 to 1)  
  
  
fade AVOptions:  
\-type              <string>     ..FV.. set the fade direction  
\-t                 <string>     ..FV.. set the fade direction  
\-start\_frame       <int>        ..FV.. set expression of frame to start fading (from 0 to INT\_MAX)  
\-s                 <int>        ..FV.. set expression of frame to start fading (from 0 to INT\_MAX)  
\-nb\_frames         <int>        ..FV.. set expression for fade duration in frames (from 0 to INT\_MAX)  
\-n                 <int>        ..FV.. set expression for fade duration in frames (from 0 to INT\_MAX)  
\-alpha             <int>        ..FV.. fade alpha if it is available on the input (from 0 to 1)  
  
  
field AVOptions:  
\-type              <int>        ..FV.. set field type (top or bottom) (from 0 to 1)  
   top                          ..FV.. select top field  
   bottom                       ..FV.. select bottom field  
  
  
fps AVOptions:  
\-fps               <string>     ..FV.. A string describing desired output framerate  
\-round             <int>        ..FV.. set rounding method for timestamps (from 0 to 5)  
   zero                         ..FV.. round towards 0  
   inf                          ..FV.. round away from 0  
   down                         ..FV.. round towards -infty  
   up                           ..FV.. round towards +infty  
   near                         ..FV.. round to nearest  
  
  
geq AVOptions:  
\-lum\_expr          <string>     ..FV.. set luminance expression  
\-cb\_expr           <string>     ..FV.. set chroma blue expression  
\-cr\_expr           <string>     ..FV.. set chroma red expression  
  
  
gradfun AVOptions:  
\-strength          <double>     ..FV.. set the maximum amount by which the filter will change any one pixel (from 0.51 to 64)  
\-radius            <int>        ..FV.. set the neighborhood to fit the gradient to (from 4 to 32)  
  
  
histeq AVOptions:  
\-strength          <float>      ..FV.. set the strength (from 0 to 1)  
\-intensity         <float>      ..FV.. set the intensity (from 0 to 1)  
\-antibanding       <int>        ..FV.. set the antibanding level (from 0 to 2)  
   none                         ..FV.. apply no antibanding  
   weak                         ..FV.. apply weak antibanding  
   strong                       ..FV.. apply strong antibanding  
  
  
hue AVOptions:  
\-h                 <string>     ..FV.. set the hue angle degrees expression  
\-H                 <string>     ..FV.. set the hue angle radians expression  
\-s                 <string>     ..FV.. set the saturation expression  
  
  
idet AVOptions:  
\-intl\_thres        <float>      ..FV.. set interlacing threshold (from -1 to FLT\_MAX)  
\-prog\_thres        <float>      ..FV.. set progressive threshold (from -1 to FLT\_MAX)  
  
  
kerndeint AVOptions:  
\-thresh            <int>        ..FV.. set the threshold (from 0 to 255)  
\-map               <int>        ..FV.. set the map (from 0 to 1)  
\-order             <int>        ..FV.. set the order (from 0 to 1)  
\-sharp             <int>        ..FV.. enable sharpening (from 0 to 1)  
\-twoway            <int>        ..FV.. enable twoway (from 0 to 1)  
  
  
lut AVOptions:  
\-c0                <string>     ..FV.. set component \#0 expression  
\-c1                <string>     ..FV.. set component \#1 expression  
\-c2                <string>     ..FV.. set component \#2 expression  
\-c3                <string>     ..FV.. set component \#3 expression  
\-y                 <string>     ..FV.. set Y expression  
\-u                 <string>     ..FV.. set U expression  
\-v                 <string>     ..FV.. set V expression  
\-r                 <string>     ..FV.. set R expression  
\-g                 <string>     ..FV.. set G expression  
\-b                 <string>     ..FV.. set B expression  
\-a                 <string>     ..FV.. set A expression  
  
  
lutrgb AVOptions:  
\-c0                <string>     ..FV.. set component \#0 expression  
\-c1                <string>     ..FV.. set component \#1 expression  
\-c2                <string>     ..FV.. set component \#2 expression  
\-c3                <string>     ..FV.. set component \#3 expression  
\-y                 <string>     ..FV.. set Y expression  
\-u                 <string>     ..FV.. set U expression  
\-v                 <string>     ..FV.. set V expression  
\-r                 <string>     ..FV.. set R expression  
\-g                 <string>     ..FV.. set G expression  
\-b                 <string>     ..FV.. set B expression  
\-a                 <string>     ..FV.. set A expression  
  
  
lutyuv AVOptions:  
\-c0                <string>     ..FV.. set component \#0 expression  
\-c1                <string>     ..FV.. set component \#1 expression  
\-c2                <string>     ..FV.. set component \#2 expression  
\-c3                <string>     ..FV.. set component \#3 expression  
\-y                 <string>     ..FV.. set Y expression  
\-u                 <string>     ..FV.. set U expression  
\-v                 <string>     ..FV.. set V expression  
\-r                 <string>     ..FV.. set R expression  
\-g                 <string>     ..FV.. set G expression  
\-b                 <string>     ..FV.. set B expression  
\-a                 <string>     ..FV.. set A expression  
  
  
negate AVOptions:  
\-c0                <string>     ..FV.. set component \#0 expression  
\-c1                <string>     ..FV.. set component \#1 expression  
\-c2                <string>     ..FV.. set component \#2 expression  
\-c3                <string>     ..FV.. set component \#3 expression  
\-y                 <string>     ..FV.. set Y expression  
\-u                 <string>     ..FV.. set U expression  
\-v                 <string>     ..FV.. set V expression  
\-r                 <string>     ..FV.. set R expression  
\-g                 <string>     ..FV.. set G expression  
\-b                 <string>     ..FV.. set B expression  
\-a                 <string>     ..FV.. set A expression  
  
  
overlay AVOptions:  
\-x                 <string>     ..FV.. set the x expression  
\-y                 <string>     ..FV.. set the y expression  
\-rgb               <int>        ..FV.. force packed RGB in input and output (from 0 to 1)  
  
  
scale AVOptions:  
\-w                 <string>     ..FV.. set width expression  
\-width             <string>     ..FV.. set width expression  
\-h                 <string>     ..FV.. set height expression  
\-height            <string>     ..FV.. set height expression  
\-flags             <string>     ..FV.. set libswscale flags  
\-interl            <int>        ..FV.. set interlacing (from -1 to 1)  
  
  
select AVOptions:  
\-expr              <string>     ..F... set selection expression  
\-e                 <string>     ..F... set selection expression  
  
  
sendcmd AVOptions:  
\-commands          <string>     ..F... set commands  
\-c                 <string>     ..F... set commands  
\-filename          <string>     ..F... set commands file  
\-f                 <string>     ..F... set commands file  
  
  
setdar AVOptions:  
\-max               <int>        ..FV.. set max value for nominator or denominator in the ratio (from 1 to INT\_MAX)  
\-ratio             <string>     ..FV.. set ratio  
\-r                 <string>     ..FV.. set ratio  
  
  
setfield AVOptions:  
\-mode              <int>        ..FV.. select interlace mode (from -1 to 2)  
   auto                         ..FV.. keep the same input field  
   bff                          ..FV.. mark as bottom-field-first  
   tff                          ..FV.. mark as top-field-first  
   prog                         ..FV.. mark as progressive  
  
  
setsar AVOptions:  
\-max               <int>        ..FV.. set max value for nominator or denominator in the ratio (from 1 to INT\_MAX)  
\-ratio             <string>     ..FV.. set ratio  
\-r                 <string>     ..FV.. set ratio  
  
  
subtitles AVOptions:  
\-filename          <string>     ..FV.. set the filename of file to read  
\-f                 <string>     ..FV.. set the filename of file to read  
\-original\_size     <image\_size> ..FV.. set the size of the original video (used to scale fonts)  
  
  
tile AVOptions:  
\-layout            <image\_size> ..FV.. set grid size  
\-margin            <int>        ..FV.. set outer border margin in pixels (from 0 to 1024)  
\-padding           <int>        ..FV.. set inner border thickness in pixels (from 0 to 1024)  
\-nb\_frames         <int>        ..FV.. set maximum number of frame to render (from 0 to INT\_MAX)  
  
  
tinterlace AVOptions:  
\-mode              <int>        ..FV.. select interlace mode (from 0 to 6)  
   merge                        ..FV.. merge fields  
   drop\_even                    ..FV.. drop even fields  
   drop\_odd                     ..FV.. drop odd fields  
   pad                          ..FV.. pad alternate lines with black  
   interleave\_top               ..FV.. interleave top and bottom fields  
   interleave\_bottom              ..FV.. interleave bottom and top fields  
   interlacex2                  ..FV.. interlace fields from two consecutive frames  
  
  
transpose AVOptions:  
\-dir               <int>        ..FV.. set transpose direction (from 0 to 7)  
\-passthrough       <int>        ..FV.. do not apply transposition if the input matches the specified geometry (from 0 to INT\_MAX)  
   none                         ..FV.. always apply transposition  
   portrait                     ..FV.. preserve portrait geometry  
   landscape                    ..FV.. preserve landscape geometry  
  
  
yadif AVOptions:  
\-mode              <int>        ..FV.. specify the interlacing mode (from 0 to 3)  
   send\_frame                   ..FV.. send one frame for each frame  
   send\_field                   ..FV.. send one frame for each field  
   send\_frame\_nospatial              ..FV.. send one frame for each frame, but skip spatial interlacing check  
   send\_field\_nospatial              ..FV.. send one frame for each field, but skip spatial interlacing check  
\-parity            <int>        ..FV.. specify the assumed picture field parity (from -1 to 1)  
   tff                          ..FV.. assume top field first  
   bff                          ..FV.. assume bottom field first  
   auto                         ..FV.. auto detect parity  
\-deint             <int>        ..FV.. specify which frames to deinterlace (from 0 to 1)  
   all                          ..FV.. deinterlace all frames  
   interlaced                   ..FV.. only deinterlace frames marked as interlaced  
  
  
cellauto AVOptions:  
\-filename          <string>     ..FV.. read initial pattern from file  
\-f                 <string>     ..FV.. read initial pattern from file  
\-pattern           <string>     ..FV.. set initial pattern  
\-p                 <string>     ..FV.. set initial pattern  
\-rate              <string>     ..FV.. set video rate  
\-r                 <string>     ..FV.. set video rate  
\-size              <image\_size> ..FV.. set video size  
\-s                 <image\_size> ..FV.. set video size  
\-rule              <int>        ..FV.. set rule (from 0 to 255)  
\-random\_fill\_ratio <double>     ..FV.. set fill ratio for filling initial grid randomly (from 0 to 1)  
\-ratio             <double>     ..FV.. set fill ratio for filling initial grid randomly (from 0 to 1)  
\-random\_seed       <int>        ..FV.. set the seed for filling the initial grid randomly (from -1 to 4.29497e+009)  
\-seed              <int>        ..FV.. set the seed for filling the initial grid randomly (from -1 to 4.29497e+009)  
\-scroll            <int>        ..FV.. scroll pattern downward (from 0 to 1)  
\-start\_full        <int>        ..FV.. start filling the whole video (from 0 to 1)  
\-full              <int>        ..FV.. start filling the whole video (from 0 to 1)  
\-stitch            <int>        ..FV.. stitch boundaries (from 0 to 1)  
  
  
color AVOptions:  
\-size              <image\_size> ..FV.. set video size  
\-s                 <image\_size> ..FV.. set video size  
\-rate              <string>     ..FV.. set video rate  
\-r                 <string>     ..FV.. set video rate  
\-duration          <string>     ..FV.. set video duration  
\-d                 <string>     ..FV.. set video duration  
\-sar               <rational>   ..FV.. set video sample aspect ratio (from 0 to INT\_MAX)  
\-color             <string>     ..FV.. set color  
\-c                 <string>     ..FV.. set color  
\-decimals          <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
\-n                 <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
  
  
life AVOptions:  
\-filename          <string>     ..FV.. set source file  
\-f                 <string>     ..FV.. set source file  
\-size              <image\_size> ..FV.. set video size  
\-s                 <image\_size> ..FV.. set video size  
\-rate              <string>     ..FV.. set video rate  
\-r                 <string>     ..FV.. set video rate  
\-rule              <string>     ..FV.. set rule  
\-random\_fill\_ratio <double>     ..FV.. set fill ratio for filling initial grid randomly (from 0 to 1)  
\-ratio             <double>     ..FV.. set fill ratio for filling initial grid randomly (from 0 to 1)  
\-random\_seed       <int>        ..FV.. set the seed for filling the initial grid randomly (from -1 to 4.29497e+009)  
\-seed              <int>        ..FV.. set the seed for filling the initial grid randomly (from -1 to 4.29497e+009)  
\-stitch            <int>        ..FV.. stitch boundaries (from 0 to 1)  
\-mold              <int>        ..FV.. set mold speed for dead cells (from 0 to 255)  
\-life\_color        <string>     ..FV.. set life color  
\-death\_color       <string>     ..FV.. set death color  
\-mold\_color        <string>     ..FV.. set mold color  
  
  
mandelbrot AVOptions:  
\-size              <image\_size> ..FV.. set frame size  
\-s                 <image\_size> ..FV.. set frame size  
\-rate              <string>     ..FV.. set frame rate  
\-r                 <string>     ..FV.. set frame rate  
\-maxiter           <int>        ..FV.. set max iterations number (from 1 to INT\_MAX)  
\-start\_x           <double>     ..FV.. set the initial x position (from -100 to 100)  
\-start\_y           <double>     ..FV.. set the initial y position (from -100 to 100)  
\-start\_scale       <double>     ..FV.. set the initial scale value (from 0 to FLT\_MAX)  
\-end\_scale         <double>     ..FV.. set the terminal scale value (from 0 to FLT\_MAX)  
\-end\_pts           <double>     ..FV.. set the terminal pts value (from 0 to I64\_MAX)  
\-bailout           <double>     ..FV.. set the bailout value (from 0 to FLT\_MAX)  
\-outer             <int>        ..FV.. set outer coloring mode (from 0 to INT\_MAX)  
   iteration\_count              ..FV.. set iteration count mode  
   normalized\_iteration\_count              ..FV.. set normalized iteration count mode  
\-inner             <int>        ..FV.. set inner coloring mode (from 0 to INT\_MAX)  
   black                        ..FV.. set black mode  
   period                       ..FV.. set period mode  
   convergence                  ..FV.. show time until convergence  
   mincol                       ..FV.. color based on point closest to the origin of the iterations  
  
  
mptestsrc AVOptions:  
\-rate              <string>     ..FV.. set video rate  
\-r                 <string>     ..FV.. set video rate  
\-duration          <string>     ..FV.. set video duration  
\-d                 <string>     ..FV.. set video duration  
\-test              <int>        ..FV.. set test to perform (from 0 to INT\_MAX)  
   dc\_luma                      ..FV..   
   dc\_chroma                    ..FV..   
   freq\_luma                    ..FV..   
   freq\_chroma                  ..FV..   
   amp\_luma                     ..FV..   
   amp\_chroma                   ..FV..   
   cbp                          ..FV..   
   mv                           ..FV..   
   ring1                        ..FV..   
   ring2                        ..FV..   
   all                          ..FV..   
\-t                 <int>        ..FV.. set test to perform (from 0 to INT\_MAX)  
   dc\_luma                      ..FV..   
   dc\_chroma                    ..FV..   
   freq\_luma                    ..FV..   
   freq\_chroma                  ..FV..   
   amp\_luma                     ..FV..   
   amp\_chroma                   ..FV..   
   cbp                          ..FV..   
   mv                           ..FV..   
   ring1                        ..FV..   
   ring2                        ..FV..   
   all                          ..FV..   
  
  
nullsrc AVOptions:  
\-size              <image\_size> ..FV.. set video size  
\-s                 <image\_size> ..FV.. set video size  
\-rate              <string>     ..FV.. set video rate  
\-r                 <string>     ..FV.. set video rate  
\-duration          <string>     ..FV.. set video duration  
\-d                 <string>     ..FV.. set video duration  
\-sar               <rational>   ..FV.. set video sample aspect ratio (from 0 to INT\_MAX)  
\-color             <string>     ..FV.. set color  
\-c                 <string>     ..FV.. set color  
\-decimals          <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
\-n                 <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
  
  
rgbtestsrc AVOptions:  
\-size              <image\_size> ..FV.. set video size  
\-s                 <image\_size> ..FV.. set video size  
\-rate              <string>     ..FV.. set video rate  
\-r                 <string>     ..FV.. set video rate  
\-duration          <string>     ..FV.. set video duration  
\-d                 <string>     ..FV.. set video duration  
\-sar               <rational>   ..FV.. set video sample aspect ratio (from 0 to INT\_MAX)  
\-color             <string>     ..FV.. set color  
\-c                 <string>     ..FV.. set color  
\-decimals          <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
\-n                 <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
  
  
smptebars AVOptions:  
\-size              <image\_size> ..FV.. set video size  
\-s                 <image\_size> ..FV.. set video size  
\-rate              <string>     ..FV.. set video rate  
\-r                 <string>     ..FV.. set video rate  
\-duration          <string>     ..FV.. set video duration  
\-d                 <string>     ..FV.. set video duration  
\-sar               <rational>   ..FV.. set video sample aspect ratio (from 0 to INT\_MAX)  
\-color             <string>     ..FV.. set color  
\-c                 <string>     ..FV.. set color  
\-decimals          <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
\-n                 <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
  
  
testsrc AVOptions:  
\-size              <image\_size> ..FV.. set video size  
\-s                 <image\_size> ..FV.. set video size  
\-rate              <string>     ..FV.. set video rate  
\-r                 <string>     ..FV.. set video rate  
\-duration          <string>     ..FV.. set video duration  
\-d                 <string>     ..FV.. set video duration  
\-sar               <rational>   ..FV.. set video sample aspect ratio (from 0 to INT\_MAX)  
\-color             <string>     ..FV.. set color  
\-c                 <string>     ..FV.. set color  
\-decimals          <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
\-n                 <int>        ..FV.. set number of decimals to show (from INT\_MIN to INT\_MAX)  
  
  
concat AVOptions:  
\-n                 <int>        ..FVA. specify the number of segments (from 2 to INT\_MAX)  
\-v                 <int>        ..FV.. specify the number of video streams (from 0 to INT\_MAX)  
\-a                 <int>        ..F.A. specify the number of audio streams (from 0 to INT\_MAX)  
\-unsafe            <int>        ..F.A. enable unsafe mode (from 0 to INT\_MAX)  
  
  
showspectrum AVOptions:  
\-size              <image\_size> ..FV.. set video size  
\-s                 <image\_size> ..FV.. set video size  
\-slide             <int>        ..FV.. set sliding mode (from 0 to 1)  
  
  
showwaves AVOptions:  
\-rate              <string>     ..FV.. set video rate  
\-r                 <string>     ..FV.. set video rate  
\-size              <image\_size> ..FV.. set video size  
\-s                 <image\_size> ..FV.. set video size  
\-n                 <int>        ..FV.. set how many samples to show in the same point (from 0 to INT\_MAX)  
  
  
amovie AVOptions:  
\-format\_name       <string>     ..F... set format name  
\-f                 <string>     ..F... set format name  
\-streams           <string>     ..F... set streams  
\-s                 <string>     ..F... set streams  
\-si                <int>        ..F... set stream index (from -1 to INT\_MAX)  
\-stream\_index      <int>        ..F... set stream index (from -1 to INT\_MAX)  
\-seek\_point        <double>     ..F... set seekpoint (seconds) (from 0 to 9.22337e+012)  
\-sp                <double>     ..F... set seekpoint (seconds) (from 0 to 9.22337e+012)  
\-loop              <int>        ..F... set loop count (from 0 to INT\_MAX)  
  
  
movie AVOptions:  
\-format\_name       <string>     ..F... set format name  
\-f                 <string>     ..F... set format name  
\-streams           <string>     ..F... set streams  
\-s                 <string>     ..F... set streams  
\-si                <int>        ..F... set stream index (from -1 to INT\_MAX)  
\-stream\_index      <int>        ..F... set stream index (from -1 to INT\_MAX)  
\-seek\_point        <double>     ..F... set seekpoint (seconds) (from 0 to 9.22337e+012)  
\-sp                <double>     ..F... set seekpoint (seconds) (from 0 to 9.22337e+012)  
\-loop              <int>        ..F... set loop count (from 0 to INT\_MAX)  
  
  
abuffer AVOptions:  
\-time\_base         <rational>   ..F.A. (from 0 to INT\_MAX)  
\-sample\_rate       <int>        ..F.A. (from 0 to INT\_MAX)  
\-sample\_fmt        <string>     ..F.A.  
\-channel\_layout    <string>     ..F.A.  
  
  
buffer AVOptions:  
\-time\_base         <rational>   ..FV.. (from 0 to INT\_MAX)  
\-frame\_rate        <rational>   ..FV.. (from 0 to INT\_MAX)  
\-video\_size        <image\_size> ..FV..  
\-pix\_fmt           <pix\_fmt>    ..FV..  
\-pixel\_aspect      <rational>   ..FV.. (from 0 to INT\_MAX)  
\-sws\_param         <string>     ..FV..