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2021-10-21 14:57:58 +08:00
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--- a/content/deepin折腾笔记/第六章/6.11.1.md
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+# 6.11.1 ffmpeg 视频转换
+ffmpeg -i input.mp4 -s:v 1280x720 -b:v 2000k -r:v 25 -c:v h264 -c:a ac3-b:a 128k -r:a 44100 -ac 2 output.mp4        
+:v视频参数，:a音频参数，-ac声道。