#479: AVStream.start_time incorrect for Sony XDCAM-EX files
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Reporter: rmk | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by rmk):
The initial GOP header has closed_gop=1 and broken_link=0 (spec section
6.3.8, debug output: GOP ( 0:00:00.[00]) closed_gop=1 broken_link=0).
Together with the fact that the initial B-frames decode fine, I tend to
believe that the stream is valid and ffmpeg treats the case incorrectly
assuming I do not misunderstand the semantics of AVStream.start_time. If
that is correct the warning
[mpeg2video @ 0x10106f400] warning: first frame is no keyframe
probably should not be triggered in this case either.
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/479#comment:5>
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