After extraction video AVC/H264 stream from DASH mp4-segment SEI messages are put prior SPS/PPSges
|Reported by:||Shevach||Owned by:|
|Blocking:||Reproduced by developer:||no|
|Analyzed by developer:||no|
Summary of the bug:
mp4-dash segment containing AVC/H264 video is not self-decoded since SPS/PPS are present in mp4 init-file (within stsd-box).
To make a mp4-dash segment decodable i concatenate the init-file with the segment and then apply ffmpeg to extract the elementary video stream, e.g.
ffmpeg -i test.mp4 -vcodec copy -vbsf h264_mp4toannexb -f h264 test.h264
i receive AVC/H.264 stream with the start SEI messages (e.g. timing SEI) transmitted prior to SPS/PPS.
To reproduce this issue i attach test.mp4 (which is a concatenation of init.mp4 and a mp4 dash segment.