[FFmpeg-trac] #7352(undetermined:new): After extraction video AVC/H264 stream from DASH mp4-segment SEI messages are put prior SPS/PPSges
FFmpeg
trac at avcodec.org
Fri Aug 10 16:48:57 EEST 2018
#7352: After extraction video AVC/H264 stream from DASH mp4-segment SEI messages
are put prior SPS/PPSges
-------------------------------------+-------------------------------------
Reporter: Shevach | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: h264,dash | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
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.
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Ticket URL: <https://trac.ffmpeg.org/ticket/7352>
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