[FFmpeg-trac] #5514(avcodec:open): Interlaced HEVC Steam not Decoded Properly
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trac at avcodec.org
Mon Aug 3 21:32:12 EEST 2020
#5514: Interlaced HEVC Steam not Decoded Properly
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Reporter: jlsantiago0 | Owner:
Type: defect | Status: open
Priority: normal | Component: avcodec
Version: git-master | Resolution:
Keywords: hevc | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Comment (by Balling):
Replying to [comment:4 dhelsley]:
> There are differences. In #4141, according to the comments the stream in
question has field_seq_flag=1 but pic_struct=3, which is improper syntax,
and the reference decoder does the same thing as FFMPEG (output half-
height frames).
>
> With this particular elementary stream, field_seq_flag=1 and
pic_struct=1 or 2 depending on which field it is, which is valid
interlaced syntax. The reference decoder produces proper interlaced output
frames with this test vector.
Please can you look into this example https://yadi.sk/d/bQkXgt900uEdkg
(DVB-T2 ts stream from Ostankino, USSR channel 58, Russia)? Is it the
second as well? BTW, about reference decoder, is that this one?
https://sourceforge.net/p/mjpeg/mailman/message/9927377/ or what?
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Ticket URL: <https://trac.ffmpeg.org/ticket/5514#comment:6>
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