[FFmpeg-trac] #1102(avformat:open): mxf separate fields in interlaced j2k

FFmpeg trac at avcodec.org
Fri Sep 20 14:08:44 EEST 2019


#1102: mxf separate fields in interlaced j2k
------------------------------------+------------------------------------
             Reporter:  zhukov      |                    Owner:  mateo
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mxf j2k     |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  1           |
------------------------------------+------------------------------------

Comment (by kieranjol):

 Hi, another user just reported this issue to me. I checked with git master
 and the initial sample - short.mxf - appears to decode correctly in both
 ffmpeg and vlc, but jpeg2000_mxf_first_10mb is still showing half height.
 I also decoded with libopenjpeg but only on ffmpeg 4.1.1 and that also
 shows half height.


 {{{
 ./ffmpeg -i /Users/bla/Downloads/jpeg2000_mxf_first_10mb.mxf
 ffmpeg version N-94982-gea673a0edb Copyright (c) 2000-2019 the FFmpeg
 developers
   built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
   configuration:
   libavutil      56. 35.100 / 56. 35.100
   libavcodec     58. 58.101 / 58. 58.101
   libavformat    58. 32.104 / 58. 32.104
   libavdevice    58.  9.100 / 58.  9.100
   libavfilter     7. 58.102 /  7. 58.102
   libswscale      5.  6.100 /  5.  6.100
   libswresample   3.  6.100 /  3.  6.100
 [mxf @ 0x7fc0c2009000] broken or empty index
 [mxf @ 0x7fc0c2009000] error getting stream index 67174400
 [jpeg2000 @ 0x7fc0c2803200] unsupported marker 0xFF61 at pos 0x62
 [jpeg2000 @ 0x7fc0c2803200] Invalid len 0 left=0
 [mxf @ 0x7fc0c2009000] Estimating duration from bitrate, this may be
 inaccurate
 Guessed Channel Layout for Input Stream #0.1 : 4.0
 Input #0, mxf, from '/Users/bla/Downloads/jpeg2000_mxf_first_10mb.mxf':
   Metadata:
     operational_pattern_ul: 060e2b34.04010101.0d010201.01010900
     uid             : 81ddd167-c3b8-11de-a525-001b2128a1f2
     generation_uid  : 81ddd168-c3b8-11de-a2e4-001b2128a1f2
     company_name    : SAMMA Systems
     product_name    : MXF for SAMMA mjpeg2k
     product_version : 0.2.0.41
     application_platform: win32
     product_uid     : 43339ae6-9040-4e2c-be5f-a3de38328894
     modification_date: 2009-10-28T11:53:28.788000Z
     material_package_umid:
 0x060A2B340101010501010D121322F4CC034B8D0232510585CFD3001B2128A1F2
     timecode        : 01:03:34:21
   Duration: 00:00:26.65, start: 0.000000, bitrate: 3073 kb/s
     Stream #0:0: Video: jpeg2000, yuv422p(top first), 720x243, lossless,
 SAR 9:20 DAR 4:3, 59.94 tbr, 59.94 tbn, 59.94 tbc
     Metadata:
       file_package_umid:
 0x060A2B340101010501010D121349F1F1034B8D0232510585BBE9001B2128A1F2
       file_package_name: Source Package
       track_name      : Track 1
     Stream #0:1: Audio: pcm_s16le, 48000 Hz, 4.0, s16, 3072 kb/s
     Metadata:
       file_package_umid:
 0x060A2B340101010501010D121349F1F1034B8D0232510585BBE9001B2128A1F2
       file_package_name: Source Package
       track_name      : Track 2
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/1102#comment:14>
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