mxf mpeg2video: black bar at the top of the video

[ami_stuff]

ffmpeg reports wrong video resolution

ntsc sample:

​http://www.datafilehost.com/d/93c8fc35

pal sample:

​http://www.datafilehost.com/d/2bd827d9

C:\>ffmpeg -i ntsc_imx_720_486.mxf -f null -
ffmpeg version N-77380-g2dba040 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 5.2.0 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enab
le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en
able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --ena
ble-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
 --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enabl
e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --
enable-lzma --enable-decklink --enable-zlib
  libavutil      55. 11.100 / 55. 11.100
  libavcodec     57. 18.100 / 57. 18.100
  libavformat    57. 20.100 / 57. 20.100
  libavdevice    57.  0.100 / 57.  0.100
  libavfilter     6. 21.100 /  6. 21.100
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Guessed Channel Layout for  Input Stream #0.1 : 7.1
Input #0, mxf, from 'ntsc_imx_720_486.mxf':
  Metadata:
    uid             : 65dad565-0470-4d44-921b-522fe87cd24b
    generation_uid  : a656fbde-9f3f-4f9b-8fd4-bb74be603a3b
    company_name    : SONY
    product_name    : Vegas
    product_version : 13.0.0.453
    application_platform: Sony MXF Development Kit (Win32)
    product_uid     : 00000000-0000-0000-0000-000000000000
    modification_date: 2016-01-11 03:04:16
    material_package_umid: 0x060A2B340101010501010D23130000001CC26F04042A4FF084F
C63A450D5BF17
    timecode        : 00:00:11;22
  Duration: 00:00:13.88, start: 0.000000, bitrate: 62617 kb/s
    Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, bt470bg/bt470m/bt470m),
720x512 [SAR 128:135 DAR 4:3], 50000 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 59.9
4 tbc
    Metadata:
      file_package_umid: 0x060A2B340101010501010D23130000009C8FB2931FFC45D4B2476
483CE3D20A0
    Stream #0:1: Audio: pcm_s16le, 48000 Hz, 8 channels, s16, 6144 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D23130000009C8FB2931FFC45D4B2476
483CE3D20A0
Output #0, null, to 'pipe:':
  Metadata:
    uid             : 65dad565-0470-4d44-921b-522fe87cd24b
    generation_uid  : a656fbde-9f3f-4f9b-8fd4-bb74be603a3b
    company_name    : SONY
    product_name    : Vegas
    product_version : 13.0.0.453
    application_platform: Sony MXF Development Kit (Win32)
    product_uid     : 00000000-0000-0000-0000-000000000000
    modification_date: 2016-01-11 03:04:16
    material_package_umid: 0x060A2B340101010501010D23130000001CC26F04042A4FF084F
C63A450D5BF17
    timecode        : 00:00:11;22
    encoder         : Lavf57.20.100
    Stream #0:0: Video: wrapped_avframe, yuv422p, 720x512 [SAR 128:135 DAR 4:3],
 q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
    Metadata:
      file_package_umid: 0x060A2B340101010501010D23130000009C8FB2931FFC45D4B2476
483CE3D20A0
      encoder         : Lavc57.18.100 wrapped_avframe
    Stream #0:1: Audio: pcm_s16le, 48000 Hz, 7.1, s16, 6144 kb/s
    Metadata:
      file_package_umid: 0x060A2B340101010501010D23130000009C8FB2931FFC45D4B2476
483CE3D20A0
      encoder         : Lavc57.18.100 pcm_s16le
Stream mapping:
  Stream #0:0 -> #0:0 (mpeg2video (native) -> wrapped_avframe (native))
  Stream #0:1 -> #0:1 (pcm_s16le (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
frame=  416 fps=0.0 q=-0.0 Lsize=N/A time=00:00:13.88 bitrate=N/A speed=  37x

video:153kB audio:10410kB subtitle:0kB other streams:0kB global headers:0kB muxi
ng overhead: unknown

[ami_stuff]

the same issue with avid mpeg-imx:

​https://www.sendspace.com/file/y1vyoh

[ami_stuff]

​https://forums.creativecow.net/thread/24/946682

"The NTSC MPEG IMX 50 Widescreen setting in Vegas follows the NTSC 525 Standard of 525 scan lines of which 486 are visible."

​https://forums.creativecow.net/thread/24/915333