[Libav-user] Working h264 codec configuration for current ffmpeg build

Christian Brümmer christian.bruemmer at gmx.de
Sat May 26 11:07:49 CEST 2012


i'm new to libav and video compression at all. What i tried so far is 
reusing output-example.c or decoding-encoding.c slightly modyfied for 
compiling on VS++2010 (win7) and to use it for x264 encoding. One of my 
main problems are that i didnt find up-to-date x264 configurations (c: 
hardcoded) working with current ffmpeg build. Most examples i found 
(around 2010) using deprecated flags and functions for configuration and 
cause i dont know what most of that flag does - so i can't replace them 
with up-to-date right ones.

Would be nice to get a example configuration which is working (c-code 
and may without using ffmpeg-presets) so i can make sure that my 
problems (crashes on avcodec_encode_video or 
av_interleaved_write_frame()) not caused by bad codec configurations!

By the way: my avcodec_encode_video returns 32 times "0" before really 
writing a frame and returning a valid byte size - can this be a right 

Thanks for reading!

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