ffmpeg 命令行视频编解码

264 to yuv: ffmpeg -i transcodeV.264 -c:v rawvideo -pix_fmt yuv420p out.yuv ide yuv to 264: ffmpeg -f rawvideo -pix_fmt yuv420p -s:v 720*576 -r 25 -i out.yuv -c:v libx264 -f rawvideo output.264 spa

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