[FFmpeg-trac] #5794(undetermined:new): PAFF sample shows wrong estimated fps

[FFmpeg]

#5794: PAFF sample shows wrong estimated fps
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  minor      |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:  h264 mov
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 http://ffmpeg.org/pipermail/ffmpeg-user/2016-August/033231.html
 A user provided a mov file containing 25fps PAFF encoded H264 stream,
 FFmpeg reports 50fps.
 {{{
 $ ffmpeg -i H264_1080i_cut.mp4 -f null -t 2 -
 ffmpeg version N-81447-gc1de1f0 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      55. 29.100 / 55. 29.100
   libavcodec     57. 54.100 / 57. 54.100
   libavformat    57. 48.100 / 57. 48.100
   libavdevice    57.  0.102 / 57.  0.102
   libavfilter     6. 54.100 /  6. 54.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  1.100 /  2.  1.100
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'H264_1080i_cut.mp4':
   Metadata:
     major_brand     : avc1
     minor_version   : 0
     compatible_brands: avc1mp42
     creation_time   : 2016-07-28 00:48:45
   Duration: 00:03:10.28, start: 0.000000, bitrate: 107 kb/s
     Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p,
 1920x1080 [SAR 1:1 DAR 16:9], 6987 kb/s, 50 fps, 50 tbr, 50 tbn, 50 tbc
 (default)
     Metadata:
       creation_time   : 2016-07-28 00:48:45
       handler_name    : Video Media Handler
       encoder         : AVC Coding
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 192 kb/s (default)
     Metadata:
       creation_time   : 2016-07-28 00:48:45
       handler_name    : Sound Media Handler
 [null @ 0x2f1cf00] Using AVStream.codec to pass codec parameters to muxers
 is deprecated, use AVStream.codecpar instead.
     Last message repeated 1 times
 Output #0, null, to 'pipe:':
   Metadata:
     major_brand     : avc1
     minor_version   : 0
     compatible_brands: avc1mp42
     encoder         : Lavf57.48.100
     Stream #0:0(eng): Video: wrapped_avframe, yuv420p, 1920x1080 [SAR 1:1
 DAR 16:9], q=2-31, 200 kb/s, 50 fps, 50 tbn, 50 tbc (default)
     Metadata:
       creation_time   : 2016-07-28 00:48:45
       handler_name    : Video Media Handler
       encoder         : Lavc57.54.100 wrapped_avframe
     Stream #0:1(eng): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
 (default)
     Metadata:
       creation_time   : 2016-07-28 00:48:45
       handler_name    : Sound Media Handler
       encoder         : Lavc57.54.100 pcm_s16le
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 (native) -> wrapped_avframe (native))
   Stream #0:1 -> #0:1 (aac (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 frame=   50 fps=0.0 q=-0.0 Lsize=N/A time=00:00:02.00 bitrate=N/A
 speed=7.62x
 video:24kB audio:375kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5794>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker