问题系列： MovieWriter ffmpeg unavailable

港控/mmm° 2022-12-20 12:46 143阅读 0赞

### 文章目录 ###

*   *  报错信息：
     *  解决方法
     *   *  1 下载并安装ffmpeg（window64）
         *  2 添加下列代码：
         *  3 Demo
     *  致谢：

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## 报错信息： ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ppYW5neWlfMTYxMjEwMV8wMw_size_16_color_FFFFFF_t_70_pic_center]

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## 解决方法 ##

### 1 下载并安装ffmpeg（window64） ###

*  链接：[https://pan.baidu.com/s/1a5hlMazAzUqNseDWz0lyMw][https_pan.baidu.com_s_1a5hlMazAzUqNseDWz0lyMw]  
    提取码：hw2c
 *  解压， 复制路径  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ppYW5neWlfMTYxMjEwMV8wMw_size_16_color_FFFFFF_t_70_pic_center 1]\- 配置环境变量， 在系统的PATH,添加刚刚复制的路径
 *  在cmd命令框里，测试是否安装成功（安装成功会出现下面的结果），没出现下面的结果，请重复配置环境变量的步骤  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ppYW5neWlfMTYxMjEwMV8wMw_size_16_color_FFFFFF_t_70_pic_center 2]

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### 2 添加下列代码： ###

> 在 “ani = animation.ArtistAnimation(fig, ims, interval=1) \# 生成动画 "后面添加下列代码

ffmpegpath = os.path.abspath("D:\AppProgram\FFmpeg\\ffmpeg-20190815-3aeb681-win64-static\\bin\\ffmpeg.exe")
        matplotlib.rcParams["animation.ffmpeg_path"] = ffmpegpath
        writer = animation.FFMpegWriter()
        ani.save("output.mp4", writer=writer)

### 3 Demo ###

import numpy as np
    import matplotlib.pyplot as plt
    import matplotlib.animation as animation
    
    
    fig, ax = plt.subplots()
    plt.rcParams['font.size'] = 15
    
    x = np.linspace(0, 2*np.pi, 1000)
    ims = []  # 将每一帧都存进去
    for i in range(len(x)):
    	ax.set_xlim(0, 2*np.pi)
        px = ax.plot(x[i], np.sin(x[i]), 'o', markersize=5, color='red')
    
        ims.append([px])
    
    ani = animation.ArtistAnimation(fig, ims, interval=5)  # 生成动画
    ani.save("output.gif", writer='pillow')
    ffmpegpath = os.path.abspath("D:\AppProgram\FFmpeg\\ffmpeg-20190815-3aeb681-win64-static\\bin\\ffmpeg.exe")
    matplotlib.rcParams["animation.ffmpeg_path"] = ffmpegpath
    writer = animation.FFMpegWriter()
    ani.save("output.mp4", writer=writer)

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## 致谢： ##

\[1\][https://blog.csdn.net/sailist][https_blog.csdn.net_sailist]  
\[2\][https://blog.csdn.net/qq\_27081181][https_blog.csdn.net_qq_27081181]

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[https_pan.baidu.com_s_1a5hlMazAzUqNseDWz0lyMw]: https://pan.baidu.com/s/1a5hlMazAzUqNseDWz0lyMw
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ppYW5neWlfMTYxMjEwMV8wMw_size_16_color_FFFFFF_t_70_pic_center 1]: /images/20221120/7f93ce08cc154ea4b74e565eedbb635e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ppYW5neWlfMTYxMjEwMV8wMw_size_16_color_FFFFFF_t_70_pic_center 2]: https://img-blog.csdnimg.cn/20201112155314217.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ppYW5neWlfMTYxMjEwMV8wMw==,size_16,color_FFFFFF,t_70#pic_center
[https_blog.csdn.net_sailist]: https://blog.csdn.net/sailist/article/details/79502007?utm_source=blogxgwz7&utm_medium=distribute.pc_relevant.none-task-blog-title-10&spm=1001.2101.3001.4242
[https_blog.csdn.net_qq_27081181]: https://blog.csdn.net/qq_27081181/article/details/100942349?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522160516613319724839206451%2522%252C%2522scm%2522%253A%252220140713.130102334..%2522%257D&request_id=160516613319724839206451&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~top_click~default-2-100942349.first_rank_ecpm_v3_pc_rank_v2&utm_term=ffmpeg%E4%B8%8B%E8%BD%BD&spm=1018.2118.3001.4449