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ffmpeg: Video convert m2ts to mp4, mp4 to webm, mp4 to ogv #tools
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| MP4 TO MP4 (MEDIUM) | |
| ffmpeg -i input.mp4 -b 1000000 output.mp4 | |
| M2TS TO MP4 | |
| ffmpeg -i input.m2ts -vcodec libx264 -crf 20 -acodec ac3 -vf "yadif" output.mp4 | |
| MP4 TO WEBM (HIGH) | |
| ffmpeg -i input.mp4 -aq 5 -ac 2 -qmax 25 -threads 2 output.webm | |
| ffmpeg -i input.mp4 -c:v libvpx-vp9 -crf 30 -b:v 0 -b:a 128k -c:a libopus output.webm | |
| MP4 TO WEBM (MEDIUM) | |
| ffmpeg -i input.mp4 -aq 5 -ac 2 -qmax 35 -threads 2 output.webm | |
| MP4 TO OGV (HIGH) | |
| ffmpeg -i input.mp4 -vcodec libtheora -acodec libvorbis -q:v 6 -q:a 5 output.ogv | |
| MP4 TO OGV (MEDIUM) | |
| ffmpeg -i input.mp4 -vcodec libtheora -acodec libvorbis -q:v 2 -q:a 4 output.ogv |
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Yes, this is what I usually use:
But I have issues too with frame rates, and some mp4 (not all) have the aliasing I'm talking about in the first message. I have less when I remove the copy argument, to reencode the video, but it's a pain in the ass when I have multiple videos to convert (it takes time and CPU power).
I don't know if the cause is the convertion, or ffmpeg itself.
Thanks for the confirmation anyway!