How to convert video to `m4v` with `ffmpeg`?
Solution 1
Try:
tools/ffmpeg/./ffmpeg -i debug/assets/videos/sample_iPod.mp4 -vcodec libx264 debug/assets/videos/sample_iPod.m4v
Solution 2
For those who find this question today still, because they're trying to play m4v
, their software player won't let them and they need it converted to a "real" format and Google sent them to this question: m4v
is not just "mp4
with DRM", but can also be a pure video stream without any playback metadata. This may be the case when you use certain digital cameras, you render video through Adobe's media encoder with certain h.264 presets, and other similar video-generating processes.
In those cases, it may very well be that all you need to do is get ffmpeg to add playback metadata on tope, which it will do by telling it to convert to mp4, turning your pure stream into a playable media resource.
$> ffmpeg -i input.m4v -vcodec copy -acodec copy output.mp4
Or you can use the short (but I find harder to remember) form:
$> ffmpeg -i input.m4v -c:v copy -c:a copy output.mp4
Done, you should now have a perfectly playable mp4 file.
Solution 3
Try:
# extract and encode audio
ffmpeg -i film.avi -vn temp_audio.mp3
faac -w -b 128 temp_audio.mp3 temp_audio.aac
# extract and encode video
ffmpeg -i input.avi -an -b 400 -vcodec mpeg4 temp_video.m4v
# mux into mp4
mp4creator -c temp_video.m4v -hint -r 30 output.mp4
mp4creator -c temp_audio.aac -hint -interleave output.mp4
rm temp_audio.mp3 temp_audio.aac temp_video.m4v
found here:
http://discerning.com/topics/audiovideo/video_encoding.html chapter ffmpeg (command shell)
Silver Light
PHP developer. As hobby also a Python/Django programmer, guitarist, marshal art and bicycle enthusiast.
Updated on August 05, 2022Comments
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Silver Light over 1 year
I'm trying to encode a video to
m4v
, so I can play it using jplayer on my website, but having troubles while specifieng correct parameter toffmpeg
. Here is the command I use:ffmpeg -i 1.avi -vcodec mpeg4 -f m4v -qmax 8 1.m4v 2>&1
The video I get with this command won't play in jplayer and even in Totem Movie Player (on ubuntu). But if I try the demo video from jplayer website evrything works fine.
Can anyone give me a hint on what parameters I need to specify to
ffmpeg
to get a workingm4v
video, like the one with a bunny? -
Silver Light over 12 yearsThank you, but this example produces
mp4
, notm4v
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piotrekkr over 12 yearsI fought that mp4 was m4v without DRM en.wikipedia.org/wiki/M4V so you could use mp4
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Jake about 6 yearsThis doesn't work with the DRM m4v format. ffmpeg doesn't support DRM.
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Jake about 6 yearsThis created a file that seemed to play, but had not video or audio. The M4V file format is a video container format developed by Apple and is very similar to the MP4 format. The primary difference is that M4V files may optionally be protected by DRM copy protection. en.wikipedia.org/wiki/M4V
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Jake about 6 yearsSorry. it doesn't work convert FROM m4v. It might work to create m4v.
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Jake about 6 yearsYou could open the mp4 in Quicktime and output for iphone to convert it to an m4v.
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Mike 'Pomax' Kamermans about 6 yearsApparently the entire comment thread and all the edits have fallen off this answer, so to restore all that starting with comments: quite a few digital cameras generate m4v files, as well as several adobe tools, of the type that are a pure video stream, so if that sounds like your situation, then this solution will work. If you have an m4v from a different kind of source (say, the itunes folder) then your mileage may vary.