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雄关漫道真如铁，而今迈步从头越。
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Use ffmpeg to separate video and audio streams

#FFmpeg245
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This post is translated from Chinese into English through AI.View Original
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The video contains both video and audio streams. If a video has only a video stream, it will have no sound, and vice versa. To view the streams in a video, use the command `ffmpeg -i test.mp4`. To separate the video and audio streams, use the commands: - For video: `ffmpeg -i test.mp4 -vcodec copy -an output.mp4` - For audio: `ffmpeg -i test.mp4 -acodec copy -vn output.aac` To convert the video directly to MP3 format, use: `ffmpeg -i test.mp4 output.mp3`.

The video contains a video stream and an audio stream. If a video only has a video stream, then there is only the image without sound, and vice versa.

View the two streams in the video#

ffmpeg -i test.mp4

Using the parameters -vcodec copy -an and -acodec copy -vn can separate the video stream and the audio stream.

Separate Video#

ffmpeg -i test.mp4 -vcodec copy -an output.mp4

Separate Audio#

ffmpeg -i test.mp4 -acodec copy -vn output.aac

Directly transcode the video to mp3 format#

ffmpeg -i test.mp4 output.mp3
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