[Libav-user] Creating mp4 (h264 codec) video from OpenGL frames

Alex Druml alex3.dr at googlemail.com
Fri May 11 19:43:49 CEST 2012

Thx for the fast reply! is there an example for muxing a h264 stream 
into a mp4 file using the C API ?


Am 10.05.2012 17:19, schrieb Alex Cohn:
> On Thu, May 10, 2012 at 5:16 PM, Alex Druml<alex3.dr at googlemail.com>  wrote:
>> hello!
>> i am currently trying to encode frames (RGB) rendered with opengl into a mp4
>> file encoded with h264.
>> i already managed to convert the frames from RGB to YUV (swscale) and i
>> use the video_encode_example example from
>> http://git.videolan.org/?p=ffmpeg.git;a=blob;f=doc/examples/decoding_encoding.c;h=cb63294b142f007cf78436c5d81c08a49f3124be;hb=HEAD
>> to encode the frames into a h264 file (vlc already plays the file). now
>> i want to write this encoded file into a common container like mp4.
>> i found a muxing example here
>> http://git.videolan.org/?p=ffmpeg.git;a=blob;f=doc/examples/muxing.c;h=9d338dee670699d07b1f87505d78ee52a17cb920;hb=HEAD
>> but is it possible to write the encoded frames directly into a mp4 file?
>> best regards!
> No, you must conform to mp4 container logic. This is what the muxer is for.
> BR,
> Alex Cohn
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