[FFmpeg-trac] #2089(undetermined:new): negative bitrates reported when transcoding a 4k v210 file

[FFmpeg]

#2089: negative bitrates reported when transcoding a 4k v210 file
-------------------------------------+-------------------------------------
             Reporter:  swany        |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:  when I transcode a 3840x2160 v210 clip to MP4, FFmpeg
 reports negative bitrates.  Output seems to be fine.

 How to reproduce:
 {{{
 ./ffmpeg -i ~/videosequences/raw/Foreman_10bitYUV.mov -s 320x180 thumb.mp4
 }}}

 Detailed log:
 {{{
 ffmpeg version N-48355-g6e8df25 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Dec 31 2012 14:12:24 with llvm-gcc 4.2.1 (LLVM build 2336.1.00)
   configuration:
   libavutil      52. 13.100 / 52. 13.100
   libavcodec     54. 85.100 / 54. 85.100
   libavformat    54. 58.100 / 54. 58.100
   libavdevice    54.  3.102 / 54.  3.102
   libavfilter     3. 30.102 /  3. 30.102
   libswscale      2.  1.103 /  2.  1.103
   libswresample   0. 17.102 /  0. 17.102
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set libav* logging level)
 with argument '9'.
 Reading option '-loglevel' ... matched as option 'loglevel' (set libav*
 logging level) with argument '99'.
 Reading option '-i' ... matched as input file with argument
 '/Users/steves/videosequences/raw/Foreman_10bitYUV.mov'.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set libav* logging level) with argument 9.
 Successfully parsed a group of options.
 Parsing a group of options: input file
 /Users/steves/videosequences/raw/Foreman_10bitYUV.mov.
 Successfully parsed a group of options.
 Opening an input file:
 /Users/steves/videosequences/raw/Foreman_10bitYUV.mov.
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff6c083d800] Format mov,mp4,m4a,3gp,3g2,mj2
 probed with size=2048 and score=100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff6c083d800] ISO: File Type Major Brand: qt
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff6c083d800] File position before
 avformat_find_stream_info() is 5971982083
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff6c083d800] All info found
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7ff6c083d800] File position after
 avformat_find_stream_info() is 22118448
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 '/Users/steves/videosequences/raw/Foreman_10bitYUV.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2012-12-18 06:27:34
   Duration: 00:00:11.26, start: 0.000000, bitrate: -2147483 kb/s
     Stream #0:0(eng), 1, 1/24000: Video: v210 (v210 / 0x30313276),
 yuv422p10le, 3840x2160, 1/24000, -52476 kb/s, SAR 1:1 DAR 16:9, 23.98 fps,
 23.98 tbr, 24k tbn, 24k tbc
     Metadata:
       creation_time   : 2012-12-18 06:27:34
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:00:00
     Stream #0:1(eng), 0, 1/24000: Data: none (tmcd / 0x64636D74)
     Metadata:
       creation_time   : 2012-12-18 06:38:06
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:00:00
 Successfully openened the file.
 At least one output file must be specified
 Statistics: 22165203 bytes read, 2 seeks
 }}}

 Note, in particular {{{bitrate: -2147483 kb/s}}} and {{{-52476 kb/s}}}.

 This 11 second clip is 5.6Gb. I suggest you synthesize a local clip for
 testing rather than have me upload it.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2089>
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