[FFmpeg-trac] #6882(avcodec:new): HEVC decoding regression with SAODBLK conformance samples

[FFmpeg]

#6882: HEVC decoding regression with SAODBLK conformance samples
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:  avcodec
                Version:  git-       |               Keywords:  hevc
  master                             |  regression
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 http://ffmpeg.org/pipermail/ffmpeg-user/2017-November/038068.html
 Two hevc conformance tests do not decode correctly since
 fa0506e4136b5b883205c82809a113f5edcd200b
 http://wftp3.itu.int/av-arch/jctvc-
 site/bitstream_exchange/draft_conformance/HEVC_v1/SAODBLK_A_MainConcept_4.zip
 http://wftp3.itu.int/av-arch/jctvc-
 site/bitstream_exchange/draft_conformance/HEVC_v1/SAODBLK_B_MainConcept_4.zip
 For the first sample, the first (I) frame shows the difference, for the
 second sample, the following P frame is also needed to show an issue.
 {{{
 $ ffmpeg -i SAODBLK_A_MainConcept_4.bin -vframes 1 -f crc -
 ffmpeg version N-89317-gda49cdf Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 6.3.0 (GCC)
   configuration: --enable-gpl
   libavutil      56.  3.100 / 56.  3.100
   libavcodec     58.  6.101 / 58.  6.101
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  5.100 /  7.  5.100
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, hevc, from 'SAODBLK_A_MainConcept_4.bin':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: hevc (Main), yuv420p(tv), 1016x760, 25 fps, 25
 tbr, 1200k tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (hevc (native) -> rawvideo (native))
 Press [q] to stop, [?] for help
 Output #0, crc, to 'pipe:':
   Metadata:
     encoder         : Lavf58.2.103
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1016x760,
 q=2-31, 231648 kb/s, 25 fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.6.101 rawvideo
 CRC=0xa2d6b6e6
 frame=    1 fps=0.0 q=-0.0 Lsize=       0kB time=00:00:00.04 bitrate=
 3.0kbits/s speed=1.61x
 video:1131kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}
 {{{
 $ ffmpeg -i SAODBLK_B_MainConcept_4.bin -vframes 2 -f crc -
 ffmpeg version N-89317-gda49cdf Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 6.3.0 (GCC)
   configuration: --enable-gpl
   libavutil      56.  3.100 / 56.  3.100
   libavcodec     58.  6.101 / 58.  6.101
   libavformat    58.  2.103 / 58.  2.103
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  5.100 /  7.  5.100
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Input #0, hevc, from 'SAODBLK_B_MainConcept_4.bin':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: hevc (Main), yuv420p(tv), 1016x760, 25 fps, 25
 tbr, 1200k tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (hevc (native) -> rawvideo (native))
 Press [q] to stop, [?] for help
 Output #0, crc, to 'pipe:':
   Metadata:
     encoder         : Lavf58.2.103
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1016x760,
 q=2-31, 231648 kb/s, 25 fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc58.6.101 rawvideo
 CRC=0x1f5fb75f
 frame=    2 fps=0.0 q=-0.0 Lsize=       0kB time=00:00:00.08 bitrate=
 1.5kbits/s speed=1.23x
 video:2262kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/6882>
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