[FFmpeg-trac] #5572(undetermined:new): Rewrapping NTSC MOV to AVI, results in 60000/1001 fps

[FFmpeg]

#5572: Rewrapping NTSC MOV to AVI, results in 60000/1001 fps
-------------------------------------+-------------------------------------
             Reporter:  peter_b      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  fps          |               Blocked By:
  framerate quicktime avi mov        |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 '''Summary of the bug:'''

 When rewrapping a videofile in a MOV container to AVI, using "-c copy"
 argument, the framerate is changed from 30000/1001 to 60000/1001.

 The output of these fps is from the following ffprobe command:

 {{{
 $ ffprobe -v error -show_entries stream=avg_frame_rate -of
 default=noprint_wrappers=1:nokey=1 $VIDEOFILE
 }}}

 The MOV file displays "30000/1001".
 The AVI copy displays "60000/1001".


 '''How to reproduce:'''
 Download the video file here:
 [http://download.das-werkstatt.com/pb/mthk/testvideos/test_20160517.mov]

 '''Command:'''
 {{{
 $ ffmpeg -i test_20160517.mov -c copy delme.avi
 }}}

 '''Output:'''
 {{{
 ffmpeg version N-80026-g936751b Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
   configuration: --prefix=/usr/local --enable-gpl --enable-nonfree
 --enable-version3 --enable-postproc --enable-swscale --enable-avfilter
 --enable-pthreads --enable-bzlib --enable-zlib --enable-decoder=png
 --enable-encoder=png --samples=../fate-suite --enable-libfreetype
 --enable-libschroedinger --enable-libopenjpeg --disable-decoder=jpeg2000
 --enable-libvpx --enable-libvorbis --enable-libx264 --enable-libfaac
   libavutil      55. 24.100 / 55. 24.100
   libavcodec     57. 42.100 / 57. 42.100
   libavformat    57. 36.100 / 57. 36.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 45.100 /  6. 45.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test_20160517.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 512
     compatible_brands: qt
     encoder         : Lavf57.36.100
   Duration: 00:00:10.01, start: 0.000000, bitrate: 8368 kb/s
     Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
 1280x720, 8232 kb/s, 29.97 fps, 29.97 tbr, 30k tbn (default)
     Metadata:
       handler_name    : DataHandler
       encoder         : AVC Coding
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 128 kb/s (default)
     Metadata:
       handler_name    : DataHandler
 [avi @ 0x35ba2e0] Using AVStream.codec to pass codec parameters to muxers
 is deprecated, use AVStream.codecpar instead.
     Last message repeated 1 times
 Output #0, avi, to 'delme.avi':
   Metadata:
     major_brand     : qt
     minor_version   : 512
     compatible_brands: qt
     ISFT            : Lavf57.36.100
     Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 1280x720,
 q=2-31, 8232 kb/s, 29.97 fps, 29.97 tbr, 59.94 tbn (default)
     Metadata:
       handler_name    : DataHandler
       encoder         : AVC Coding
     Stream #0:1(eng): Audio: aac (LC) ([255][0][0][0] / 0x00FF), 48000 Hz,
 stereo, 128 kb/s (default)
     Metadata:
       handler_name    : DataHandler
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 frame=  300 fps=0.0 q=-1.0 Lsize=   10251kB time=00:00:10.00
 bitrate=8393.4kbits/s speed= 714x
 video:10060kB audio:157kB subtitle:0kB other streams:0kB global
 headers:0kB muxing overhead: 0.342505%
 }}}

 '''ffprobe call and output:'''
 {{{
 ffprobe -show_entries stream=avg_frame_rate -of
 default=noprint_wrappers=1:nokey=1 delme.avi
 ffprobe version N-80026-g936751b Copyright (c) 2007-2016 the FFmpeg
 developers
   built with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
   configuration: --prefix=/usr/local --enable-gpl --enable-nonfree
 --enable-version3 --enable-postproc --enable-swscale --enable-avfilter
 --enable-pthreads --enable-bzlib --enable-zlib --enable-decoder=png
 --enable-encoder=png --samples=../fate-suite --enable-libfreetype
 --enable-libschroedinger --enable-libopenjpeg --disable-decoder=jpeg2000
 --enable-libvpx --enable-libvorbis --enable-libx264 --enable-libfaac
   libavutil      55. 24.100 / 55. 24.100
   libavcodec     57. 42.100 / 57. 42.100
   libavformat    57. 36.100 / 57. 36.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 45.100 /  6. 45.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, avi, from 'delme.avi':
   Metadata:
     encoder         : Lavf57.36.100
   Duration: 00:00:10.01, start: 0.000000, bitrate: 8389 kb/s
     Stream #0:0: Video: h264 (Main) (avc1 / 0x31637661), yuv420p,
 1280x720, 8260 kb/s, 59.94 fps, 29.97 tbr, 59.94 tbn
     Stream #0:1: Audio: aac (LC) ([255][0][0][0] / 0x00FF), 48000 Hz,
 stereo, fltp, 128 kb/s
 60000/1001
 0/0
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5572>
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