thank you.!
At 2018-08-12 20:45:00, "Hendrik Leppkes" <h.lepp...@gmail.com> wrote: >On Sun, Aug 12, 2018 at 12:42 PM tugouxp <13824125...@163.com> wrote: >> >> hi all: >> i add log print in function "h264_decode_frame" in order to get the >> start code infomation of the input packet bitstream, >> and the log is below. but the result is not expected, for the doucument >> says each packet should be start with start code "00 00 01" or "00 00 00 01", >> >> if so, why the ffmpeg did not report any error messages to terminal? is >> there any mistake of my understanding? >> >> thanks for your kindly support. hi all: >> i add log print in function "h264_decode_frame" in order to get the >> start code infomation of the input packet bitstream, >> and the log is below. but the result is not expected, for the doucument >> says each packet should be start with start code "00 00 01" or "00 00 00 01", >> >> if so, why the ffmpeg did not report any error messages to terminal? is >> there any mistake of my understanding? >> > >H264 can exist in two formats, either AnnexB with the start code you >mention, or in MP4 format with a length prefix, but not the start code >you are looking for. >MP4 format is used in MP4/MKV and a variety of other containers, while >AnnexB is often found in raw files and MPEG-TS and its derived >formats. > >- Hendrik >_______________________________________________ >ffmpeg-devel mailing list >ffmpeg-devel@ffmpeg.org >http://ffmpeg.org/mailman/listinfo/ffmpeg-devel _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
