[FFmpeg-trac] #8208(avcodec:open): corrupt decoded frame in stream 0

[FFmpeg]

#8208: corrupt decoded frame in stream 0
--------------------------------------+-----------------------------------
             Reporter:  alexrichmond  |                    Owner:
                 Type:  defect        |                   Status:  open
             Priority:  minor         |                Component:  avcodec
              Version:  git-master    |               Resolution:
             Keywords:  h264          |               Blocked By:
             Blocking:                |  Reproduced by developer:  1
Analyzed by developer:  0             |
--------------------------------------+-----------------------------------
Changes (by cehoyos):

 * priority:  normal => minor
 * status:  new => open


Comment:

 Not always reproducible, not reproducible with `-threads 1`, the reference
 decoder shows no issue.
 {{{
 $ ffmpeg -i source_cut.mkv -f null -
 ffmpeg version N-95115-g35a12d2071 Copyright (c) 2000-2019 the FFmpeg
 developers
   built with clang version 8.0.1 (tags/RELEASE_801/final 366581)
   configuration: --cc=clang --enable-gpl --enable-gnutls --enable-libxml2
 --enable-libx264 --enable-libx265 --enable-libvpx --enable-libaom
   libavutil      56. 35.100 / 56. 35.100
   libavcodec     58. 59.100 / 58. 59.100
   libavformat    58. 33.100 / 58. 33.100
   libavdevice    58.  9.100 / 58.  9.100
   libavfilter     7. 59.100 /  7. 59.100
   libswscale      5.  6.100 /  5.  6.100
   libswresample   3.  6.100 /  3.  6.100
   libpostproc    55.  6.100 / 55.  6.100
 [h264 @ 0x3821040] mmco: unref short failure
     Last message repeated 1 times
 [h264 @ 0x3821040] Increasing reorder buffer to 3
 Input #0, matroska,webm, from 'source_cut.mkv':
   Metadata:
     title           : QOS11
     encoder         : libebml v1.3.9 + libmatroska v1.5.2
     creation_time   : 2019-09-28T00:04:04.000000Z
     DATE_BROADCASTED: 2019-09-27 19:58:21
     ORIGINAL_MEDIA_TYPE: TV
   Duration: 00:00:01.12, start: 0.080000, bitrate: 9798 kb/s
     Chapter #0:0: start 0.000000, end 1.200000
     Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709, top first),
 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
     Metadata:
       BPS-eng         : 9751600
       DURATION-eng    : 00:00:01.120000000
       NUMBER_OF_FRAMES-eng: 32
       NUMBER_OF_BYTES-eng: 1365224
       _STATISTICS_WRITING_APP-eng: mkvmerge v37.0.0 ('Leave It') 64-bit
       _STATISTICS_WRITING_DATE_UTC-eng: 2019-09-28 00:04:04
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native))
 Press [q] to stop, [?] for help
 [h264 @ 0x3930640] mmco: unref short failure
 [h264 @ 0x3923180] mmco: unref short failure
 Output #0, null, to 'pipe:':
   Metadata:
     title           : QOS11
     DATE_BROADCASTED: 2019-09-27 19:58:21
     ORIGINAL_MEDIA_TYPE: TV
     encoder         : Lavf58.33.100
     Chapter #0:0: start 0.000000, end 1.120000
     Stream #0:0(eng): Video: wrapped_avframe, yuv420p, 1920x1080 [SAR 1:1
 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc (default)
     Metadata:
       BPS-eng         : 9751600
       DURATION-eng    : 00:00:01.120000000
       NUMBER_OF_FRAMES-eng: 32
       NUMBER_OF_BYTES-eng: 1365224
       _STATISTICS_WRITING_APP-eng: mkvmerge v37.0.0 ('Leave It') 64-bit
       _STATISTICS_WRITING_DATE_UTC-eng: 2019-09-28 00:04:04
       _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
       encoder         : Lavc58.59.100 wrapped_avframe
 source_cut.mkv: corrupt decoded frame in stream 0
 frame=   25 fps=0.0 q=-0.0 Lsize=N/A time=00:00:01.00 bitrate=N/A speed=
 9.8x
 video:13kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8208#comment:5>
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