[FFmpeg-trac] #6793(avformat:new): Timecode of mp4 file from Sony FDR-AX100 camera not recognized

FFmpeg trac at avcodec.org
Sun Nov 5 05:19:35 EET 2017


#6793: Timecode of mp4 file from Sony FDR-AX100 camera not recognized
--------------------------------------+------------------------------------
             Reporter:  tvolkert      |                    Owner:
                 Type:  defect        |                   Status:  new
             Priority:  normal        |                Component:  avformat
              Version:  git-master    |               Resolution:
             Keywords:  mov timecode  |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
--------------------------------------+------------------------------------

Comment (by cehoyos):

 Your original report was that FFmpeg does not recognize the timecode for
 this camera but I see a timecode:
 {{{
 $ ffmpeg -i C0088.MP4
 ffmpeg version N-88541-g3357b68 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 6.3.0 (GCC)
   configuration: --enable-gpl
   libavutil      56.  0.100 / 56.  0.100
   libavcodec     58.  1.100 / 58.  1.100
   libavformat    58.  0.102 / 58.  0.102
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  0.101 /  7.  0.101
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x3a10240] st: 0 edit list: 1 Missing key frame
 while searching for timestamp: 1001
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x3a10240] st: 0 edit list 1 Cannot find an
 index entry before timestamp: 1001.
 Rounding edit list media time to zero.
 Guessed Channel Layout for Input Stream #0.1 : stereo
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C0088.MP4':
   Metadata:
     major_brand     : XAVC
     minor_version   : 16785407
     compatible_brands: XAVCmp42iso2
     creation_time   : 2017-11-04T23:25:24.000000Z
   Duration: 00:00:04.50, start: 0.000000, bitrate: 95011 kb/s
     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv,
 bt709/bt709/iec61966-2-4), 3840x2160 [SAR 1:1 DAR 16:9], 93221 kb/s, 29.97
 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
     Metadata:
       creation_time   : 2017-11-04T23:25:24.000000Z
       handler_name    : Video Media Handler
       encoder         : AVC Coding
     Stream #0:1(und): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz,
 stereo, s16, 1536 kb/s (default)
     Metadata:
       creation_time   : 2017-11-04T23:25:24.000000Z
       handler_name    : Sound Media Handler
     Stream #0:2(und): Data: none (rtmd / 0x646D7472), 245 kb/s (default)
     Metadata:
       creation_time   : 2017-11-04T23:25:24.000000Z
       handler_name    : Timed Metadata Media Handler
       timecode        : 83:01:01;02
 At least one output file must be specified
 }}}
 Is it wrong?
 What is the correct timecode?

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6793#comment:6>
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