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ffmpeg: add extract frame example and other tweaks (#1477)

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Agniva De Sarker 2017-09-23 09:41:41 +05:30 committed by GitHub
parent cd5897c7c7
commit 7cce91b3c0
1 changed files with 9 additions and 5 deletions
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pages/common/ffmpeg.md
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@ -4,16 +4,20 @@
- Extract the sound from a video and save it as MP3:
`ffmpeg -i {{video_filename}} -vn -ar 44100 -ac 2 -ab 192 -f mp3 {{sound.mp3}}`
`ffmpeg -i {{video.mp4}} -vn -ar 44100 -ac 2 -ab 192 -f mp3 {{sound}}.mp3`
- Convert frames from a video or GIF into individual numbered images:
`ffmpeg -i {{video_or_gif_filename}} {{image%d.png}}`
`ffmpeg -i {{video.mpg|video.gif}} {{frame_%d.png}}`
- Combine numbered images (image1.jpg, image2.jpg, etc) into a video or GIF:
- Combine numbered images (frame_1.jpg, frame_2.jpg, etc) into a video or GIF:
`ffmpeg -f image2 -i {{image%d.jpg}} {{video.mpg_or_video.gif}}`
`ffmpeg -i {{frame_%d.jpg}} -f image2 {{video.mpg|video.gif}}`
- Extract a single frame from a video at time mm:ss and save it as a 128x128 resolution image:
`ffmpeg -i {{video.mp4}} -ss {{mm:ss}} -frames 1 -s {{128x128}} -f image2 {{image.png}}`
- Convert AVI video to MP4. AAC Audio @ 128kbit, Video @ 1250Kbit:
`ffmpeg -i {{in.avi}} -acodec libfaac -ab 128k -vcodec mpeg4 -b 1250K {{out.mp4}}`
`ffmpeg -i {{input_video}}.avi -acodec libfaac -ab 128k -vcodec mpeg4 -b 1250K {{output_video}}.mp4`