[FFmpeg-trac] #2211(undetermined:new): Not possible to override bogus FPS in raw h264 streams

[FFmpeg]

#2211: Not possible to override bogus FPS in raw h264 streams
-------------------------------------+-------------------------------------
             Reporter:  jaanusk      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 It's not possible to override fps on raw h264 streams.

 For example, I have a stream produced by Raspberry PI HW encoder which
 plays fine when fps
 is forced. The actual fps is 15, but recent ffmpeg versions default
 somehow to 25fps.

 How to reproduce:
 {{{
 % ffmpeg -r 15 -i stream_00 -vcodec copy stream.mp4
 ffmpeg version N-49440-gebe368d Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Jan 29 2013 16:08:08 with gcc 4.7 (Debian 4.7.2-5)
   configuration:
   libavutil      52. 17.100 / 52. 17.100
   libavcodec     54. 91.100 / 54. 91.100
   libavformat    54. 61.104 / 54. 61.104
   libavdevice    54.  3.102 / 54.  3.102
   libavfilter     3. 34.101 /  3. 34.101
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
 [h264 @ 0x1bcf000] max_analyze_duration 5000000 reached at 5000000
 microseconds
 [h264 @ 0x1bcf000] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, h264, from 'stream_00':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: h264 (High), yuv420p, 960x720, 25 fps, 25 tbr,
 1200k tbn, 50 tbc
 Output #0, mp4, to 'stream.mp4':
   Metadata:
     encoder         : Lavf54.61.104
     Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 960x720,
 q=2-31, 25 fps, 1200k tbn, 1200k tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 Press [q] to stop, [?] for help
 frame=224753 fps=173017 q=-1.0 Lsize=  103295kB time=02:29:50.08 bitrate=
 94.1kbits/s
 video:102400kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 0.873958%

 }}}

 Output file plays faster then normal because the actual source is 15fps
 and ffmpeg does not allow to override this.

 Last version that works as expected is 0.11.2.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2211>
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