2014-05-30 19:27:55 +01:00
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# ffmpeg
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2016-01-07 17:31:27 +00:00
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> Video conversion tool.
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2014-05-30 19:27:55 +01:00
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2016-01-07 17:31:27 +00:00
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- Extract the sound from a video and save it as MP3:
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2014-05-30 19:27:55 +01:00
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2017-10-25 14:46:31 +01:00
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`ffmpeg -i {{video.mp4}} -vn {{sound}}.mp3`
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2014-05-30 19:27:55 +01:00
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2016-12-24 00:29:40 +00:00
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- Convert frames from a video or GIF into individual numbered images:
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2014-05-30 19:27:55 +01:00
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2017-09-23 05:11:41 +01:00
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`ffmpeg -i {{video.mpg|video.gif}} {{frame_%d.png}}`
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2014-05-30 19:27:55 +01:00
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2017-09-23 05:11:41 +01:00
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- Combine numbered images (frame_1.jpg, frame_2.jpg, etc) into a video or GIF:
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2014-05-30 19:27:55 +01:00
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2017-09-23 05:11:41 +01:00
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`ffmpeg -i {{frame_%d.jpg}} -f image2 {{video.mpg|video.gif}}`
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2017-10-23 22:24:54 +01:00
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- Quickly extract a single frame from a video at time mm:ss and save it as a 128x128 resolution image:
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2017-09-23 05:11:41 +01:00
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2017-10-23 22:24:54 +01:00
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`ffmpeg -ss {{mm:ss}} -i {{video.mp4}} -frames 1 -s {{128x128}} -f image2 {{image.png}}`
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2014-05-30 19:27:55 +01:00
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2017-10-25 14:46:31 +01:00
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- Convert AVI video to MP4. AAC Audio @ 128kbit, h264 Video @ CRF 23:
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2017-10-23 22:24:54 +01:00
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2017-10-25 14:46:31 +01:00
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`ffmpeg -i {{input_video}}.avi -codec:audio aac -b:audio 128k -codec:video libx264 -crf 23 {{output_video}}.mp4`
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2017-10-23 22:24:54 +01:00
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2017-10-25 14:46:31 +01:00
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- Remux MKV video to MP4. No re-encoding of video or audio streams:
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2017-10-23 22:24:54 +01:00
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2017-10-25 14:46:31 +01:00
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`ffmpeg -i {{inpupt_video}}.mkv -codec copy {{output_video}}.mp4`
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