[FFmpeg-trac] #5514(avcodec:open): Interlaced HEVC Steam not Decoded Properly

FFmpeg trac at avcodec.org
Mon Aug 3 21:32:12 EEST 2020

#5514: Interlaced HEVC Steam not Decoded Properly
             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            |

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?

Ticket URL: <https://trac.ffmpeg.org/ticket/5514#comment:6>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker

More information about the FFmpeg-trac mailing list