[FFmpeg-trac] #3100(avformat:open): Support AVID mxf files

FFmpeg trac at avcodec.org
Thu Oct 31 10:06:23 CET 2013


#3100: Support AVID mxf files
-------------------------------------+------------------------------------
             Reporter:  cehoyos      |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mxf AVID     |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+------------------------------------

Comment (by rmk):

 Both files are, as suspected, OP-Atom files. Below is the output of the
 mxf2raw utility of the bmx project in the hope it might help someone, who
 implements this, to know as much about these files as possible:

  MXF File Information:
   Filename                   :
 /Users/krueger/tmp/avid/1sec_mxf_test_Video5270C795.mxf
   MXF version                : 1.1
   OP label                   : OP-Atom (>1 source clips, >1 essence
 tracks)
   Wrapping type              : Clip
   Material package name      : 1sec_mxf_test,Video Mixdown,1
   Material start timecode    : 00:02:00:00 (@ 25fps)
   Edit rate                  : 25/1
   Precharge                  : 0
   Duration                   : 25
   Rollout                    : 0
   Identifications            :
     Identification 0:
       Generation UID    : 81b0ffc4.844d627a.ac442d7d.e82e4351
       Company name      : Avid Technology, Inc.
       Product name      : Avid Media Composer 6.0.4
       Product version   : 6.0.0.0.1 (released version)
       Version string    : Unknown version
       Product UID       : acfbf03a.4f42a231.d0b7c06e.cd3d4ad7
       Modification date : 2013-10-30 08:47:17.000
       Toolkit version   : 1.1.6.7750.0 (unknown version)
       Platform          : Win32
 Track 0:
   Essence kind         : Picture
   Essence type         : MPEG-2 Long GOP 422P at HL 1080i
   Essence label        : 060e2b34.04010101.0e040301.02030000
   Material package uid :
 060a2b34.01010101.01010f00.13000000.5270c795.58c00a80.060e2b34.7f7f2a80
   Material track id    : 1
   Material track number: 1
   File package uid     :
 060a2b34.01010101.01010f00.13000000.5270c795.58c10a80.060e2b34.7f7f2a80
   File track id        : 1
   File track number    : 0x15010301
   Edit rate            : 25/1
   Duration             : 25
   Lead filler offset   : 0
   Picture coding label : 060e2b34.04010103.04010202.01040300
   Signal standard      : 0 (None)
   Frame layout         : 1 (Separate Fields)
   Stored dimensions    : 1920x1080
   Display dimensions   : 1920x1080
   Display x offset     : 0
   Display y offset     : 0
   Aspect ratio         : 16/9
   AFD                  : (not set)
   Component depth      : 8
   Horiz subsampling    : 2
   Vert subsampling     : 1
   Color siting         : 4 (Rec 601)

 ---

 MXF File Information:
   Filename                   :
 /Users/krueger/tmp/avid/1sec_mxf_test_A5270C779.1.mxf
   MXF version                : 1.1
   OP label                   : OP-Atom (>1 source clips, >1 essence
 tracks)
   Wrapping type              : Clip
   Material package name      : 1sec_mxf_test,Audio Mixdown,1
   Material start timecode    : 00:02:00:00 (@ 25fps)
   Edit rate                  : 48000/1
   Precharge                  : 0
   Duration                   : 48000
   Rollout                    : 0
   Identifications            :
     Identification 0:
       Generation UID    : b73a1681.a662716b.d6010c52.132d4d20
       Company name      : Avid Technology, Inc.
       Product name      : Avid Media Composer 6.0.4
       Product version   : 6.0.0.0.1 (released version)
       Version string    : Unknown version
       Product UID       : acfbf03a.4f42a231.d0b7c06e.cd3d4ad7
       Modification date : 2013-10-30 08:46:49.000
       Toolkit version   : 1.1.6.7750.0 (unknown version)
       Platform          : Win32
 Track 0:
   Essence kind         : Sound
   Essence type         : WAVE PCM
   Essence label        : 060e2b34.04010101.0d010301.02060200
   Material package uid :
 060a2b34.01010101.01010f00.13000000.5270c779.eb6e0a7f.060e2b34.7f7f2a80
   Material track id    : 2
   Material track number: 2
   File package uid     :
 060a2b34.01010101.01010f00.13000000.5270c779.eb8d0a7f.060e2b34.7f7f2a80
   File track id        : 1
   File track number    : 0x16010201
   Edit rate            : 48000/1
   Duration             : 48000
   Lead filler offset   : 0
   Sampling rate        : 48000/1
   Bits per sample      : 16
   Block align          : 2
   Channel count        : 1
   Sequence offset      : 0
   Locked               : false
   Audio ref level      : -20
   Dial norm            : 27

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3100#comment:3>
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