Combining .264 and .aac file into an AVI or MKV?

[MikeBell]

Hi guys,

I have an FLV file (video: avc, audio: aac) and I'd like to convert it to an AVI or MKV file.

I've used FLVextract and it produced two files: video .264 file and an audio .aac file. How do I combine those into an AVI or MKV file?

Thanks!

[Blue_MiSfit]

AVIMuxGUI or MKVMergeGUI.

[thewebchat]

You need to use avc2avi to mux the H.264 ES (.264) to an AVI file, since AVIMuxGUI won't handle it. After that, you can use AVIMuxGUI to add the raw AAC stream (.aac).

[MikeBell]

Thank you guys!! After I created an avi with avc2avi, it worked perfectly!

[roozhou]

Please use this ffmpeg build (http://forum.doom9.org/showthread.php?t=152419). You don't need to extract .264 and .aac.

flv -> mkv:
ffmpeg -i input.flv -vcodec copy -acodec copy output.mkv
flv -> avi:
ffmpeg -i input.flv -vcodec copy -acodec copy -vbsf h264_mp4toannexb=avihack output.avi

[EmuAGR]

Don't use AVI anymore, MKV is better. :rolleyes:

[Blue_MiSfit]

That's opening a huge container of worms and re-hashing discussions that have happened many times here on doom9.

It is generally a better idea to use a container that fully supports H.264, but AVI will work when you need it.

~MiSfit