[FFmpeg-trac] #2892(undetermined:new): MPEG tbn value incorrectly evaluated: causes MOV wrap to fail

[FFmpeg]

#2892: MPEG tbn value incorrectly evaluated: causes MOV wrap to fail
-------------------------------------+-------------------------------------
             Reporter:  ortoni       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by ortoni):

 Replying to [comment:1 cehoyos]:
 > Please test current git head and please provide the input sample.

 Thanks, here below:

 ffmpeg.exe -i test.mov -c:v copy -c:a copy -vtag mx3n -timecode
 10:00:00:00 out.mov
 ffmpeg version N-55721-gc443689 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Aug 22 2013 18:59:54 with gcc 4.7.3 (GCC)
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-av
 isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
 --enab
 le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-
 libfreetyp
 e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame
 --ena
 ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-l
 ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr
 --enable-libsp
 eex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-
 libvo-
 amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-
 libxavs --
 enable-libxvid --enable-zlib
   libavutil      52. 42.100 / 52. 42.100
   libavcodec     55. 29.100 / 55. 29.100
   libavformat    55. 14.102 / 55. 14.102
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 82.102 /  3. 82.102
   libswscale      2.  5.100 /  2.  5.100
   libswresample   0. 17.103 /  0. 17.103
   libpostproc    52.  3.100 / 52.  3.100
 Guessed Channel Layout for  Input Stream #0.1 : stereo
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 512
     compatible_brands: qt
     creation_time   : 1970-01-01 00:00:00
   Duration: 00:00:30.03, start: 0.000000, bitrate: 32315 kb/s
     Stream #0:0(eng): Video: mpeg2video (4:2:2) (mx3n / 0x6E33786D),
 yuv422p, 72
 0x512 [SAR 128:135 DAR 4:3], 30006 kb/s, 29.97 fps, 29.97 tbr, 30k tbn,
 59.94 tbc
     Metadata:
       creation_time   : 1970-01-01 00:00:00
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:07;00
     Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz,
 stereo, s32, 2304 kb/s
     Metadata:
       creation_time   : 1970-01-01 00:00:00
       handler_name    : Apple Alias Data Handler
     Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s
     Metadata:
       creation_time   : 2013-02-07 15:40:51
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:07;00
 Output #0, mov, to 'out.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 512
     compatible_brands: qt
     timecode        : 10:00:00:00
     encoder         : Lavf55.14.102
     Stream #0:0(eng): Video: mpeg2video (mx3n / 0x6E33786D), yuv422p,
 720x512 [SAR 128:135 DAR 4:3], q=2-31, 30006 kb/s, 29.97 fps, 30k tbn, 30k
 tbc
     Metadata:
       creation_time   : 1970-01-01 00:00:00
       handler_name    : Apple Alias Data Handler
       timecode        : 00:00:07;00
     Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz,
 stereo, 2304 kb/s
     Metadata:
       creation_time   : 1970-01-01 00:00:00
       handler_name    : Apple Alias Data Handler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 frame=  660 fps=0.0 q=-1.0 size=   84363kB time=00:00:21.98
 bitrate=31430.0kbits
 fps 30000 is too large
 frame=  900 fps=0.0 q=-1.0 Lsize=  118466kB time=00:00:30.03
 bitrate=32316.6kbits/s
 video:109998kB audio:8446kB subtitle:0 global headers:0kB muxing overhead
 0.018463%

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2892#comment:2>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker