#472: Initial gray frames when first frame is no keyframe
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Reporter: DonMoir | 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 DonMoir):
I don't know what the best solution is but clearly you do not want garbage
to be displayed. This is not specific to H264. Now you have me wondering
if my approach will fail on some clean videos with no keyframe.
I consider this to be a bug and not a feature request. If you want another
sample where the video is fine but initially gray I will upload it. A bug
in the video file ? Probably. But as I said it tends to happen more often
then it should so at least need some descent work around and it seems the
only way is what I have already. This seems to happen only with ffmpeg
based apps. If for example I use some other means like DShow and installed
codecs, the gray frames do not appear and I assume this problem is worked
around in the various codecs.
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/472#comment:2>
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