[FFmpeg-trac] #4529(avcodec:new): Forbidden bit in h264 stream triggers data partioning warning

FFmpeg trac at avcodec.org
Fri May 1 10:11:28 CEST 2015


#4529: Forbidden bit in h264 stream triggers data partioning warning
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  minor      |              Component:  avcodec
                Version:  git-       |               Keywords:  h264
  master                             |  regression
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/192751
 A user uploaded a raw h264 stream for which FFmpeg claims "data
 partitioning not implemented" since 392080cb / 167e004e
 {{{
 $ ffmpeg -i night_cut.dump -f null -
 ffmpeg version N-71816-g02001ad Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      54. 23.101 / 54. 23.101
   libavcodec     56. 35.101 / 56. 35.101
   libavformat    56. 31.100 / 56. 31.100
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 14.100 /  5. 14.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, h264, from 'night_cut.dump':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: h264 (Main), yuv420p, 1280x720, 25 fps, 25 tbr,
 1200k tbn, 50 tbc
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf56.31.100
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1280x720,
 q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc56.35.101 rawvideo
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> rawvideo (native))
 Press [q] to stop, [?] for help
 [null @ 0x1d73ca0] Encoder did not produce proper pts, making some up.
 [h264 @ 0x1d59420] data partitioning is not implemented. Update your
 FFmpeg version to the newest one from Git. If the problem still occurs, it
 means that your file has a feature which has not been implemented.
 [h264 @ 0x1d59420] If you want to help, upload a sample of this file to
 ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing
 list. (ffmpeg-devel at ffmpeg.org)
 frame=   30 fps=0.0 q=0.0 Lsize=N/A time=00:00:01.24 bitrate=N/A
 video:3kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}
 The reference decoder reports:
 {{{
 00000(IDR)        0     0    25                             4:2:0      26
 00001( P )        2     1    23                             4:2:0      25
 00002( P )        4     2    22                             4:2:0      27
 00003( P )        6     3    23                             4:2:0      25
 00004( P )        8     4    22                             4:2:0      26
 00005( P )       10     5    23                             4:2:0      24
 00006( P )       12     6    22                             4:2:0      27
 00007( P )       14     7    23                             4:2:0      25
 00008( P )       16     8    22                             4:2:0      26
 00009( P )       18     9    23                             4:2:0      24
 00010( P )       20    10    22                             4:2:0      27
 00011( P )       22    11    23                             4:2:0      24
 00012( P )       24    12    22                             4:2:0      26
 00013( P )       26    13    23                             4:2:0      24
 00014( P )       28    14    22                             4:2:0      26
 00015( P )       30    15    23                             4:2:0      24
 00016( P )       32    16    22                             4:2:0      26
 00017( P )       34    17    23                             4:2:0      24
 00018( P )       36    18    22                             4:2:0      27
 00019( P )       38    19    23                             4:2:0      25
 00020( P )       40    20    22                             4:2:0      26
 00021( P )       42    21    23                             4:2:0      24
 00022( P )       44    22    22                             4:2:0      27
 00023( P )       46    23    23                             4:2:0      25
 00024( P )       48    24    22                             4:2:0      26
 00025( P )       50    25    23                             4:2:0      25
 00026( P )       52    26    22                             4:2:0      26
 Found NALU with forbidden_bit set, bit error?
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4529>
FFmpeg <https://ffmpeg.org>
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