You should check the FLV muxing code in libavformat. It's pretty simple and yes the frames do get changed.
Sergej On Mon, Mar 16, 2009 at 6:59 PM, Beat <[email protected]> wrote: > Hi all > > I am building a live cam which streams h264 over (Flash) RTMP to the > browser. The RTMP part is set up and I can stream h264 from mp4 files to > a browser. I also can capture from a connected USB cam and encode the > stream to h264 (libx264). > The problem is, the frames returned from avcodec_encode_video() look > different than the frames in the MP4 file. > > To record a mp4 file: > ffmpeg -s qvga -r 25 -f video4linux2 -i /dev/video0 -vcodec libx264 > filename.mp4 > > Pseudocode for the h264 encoding: > setup in stream > setup out codec > while(av_read_frame(in, frame)) { > encode(frame, pic) > swscale(pic) > encode(pic, buffer) > // What shall I do with the buffer? > sendToRtmp(buffer) > } > > What I need to known, after a frame is encoded into h264, are there any > post-decoding before it is written to the mp4-file? I try to analyze the > code, but I couldn't find it. > > Many thanks and kind regards > Beat > > _______________________________________________ > libav-user mailing list > [email protected] > https://lists.mplayerhq.hu/mailman/listinfo/libav-user > _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
