• Adobe Media Encoder

  export : MXF and TC issues

  Posted by Jean Bertin on June 6, 2016 at 2:39 pm

  Hello,

  One MXF export doesn’t pass the QC of the broadcaster, with this two errors:

  • TC discontinuity (infringement of SMPTE 377-1)
  • mismatch between essence TC (SMPTE328M) and wrapper TC (infringement of EBU R122 specs)

  Metadatas shows two TC in wrapper : MXF (Material Package) and SMPTE TC, at 10:00:00:00
  Further, in video stream (essence (Elementary Stream) TC) :
  Time code of first frame : 00:00:00:00

  AVProbe (FFProbe’s fork) results :
  [mxf @ 0x102b400] Unknown frame layout type: 1
Input #0, mxf, from '/media/NAS-3/MEDIACENTER/TRAVAUX_CLIENTS_IQ/TF1/_Exports/1098308.mxf':
Duration: 01:25:02.32, start: 0.000000, bitrate: 59995 kb/s
Stream #0.0: Video: mpeg2video (4:2:2), yuv422p, 1920x1080 [PAR 1:1 DAR 16:9], 50000 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
Stream #0.1: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s
Stream #0.2: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s
Stream #0.3: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s
Stream #0.4: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s
Stream #0.5: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s
Stream #0.6: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s
Stream #0.7: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s
Stream #0.8: Audio: pcm_s24le, 48000 Hz, 1 channels, s32, 1152 kb/s

  And AVConv :
  $avconv -v error -i file.mxf -f null -
[mpeg2video @ 0x1c2d220] warning: first frame is no keyframe
file.mxf Operation not permitted
  (last line is just Unix translate of output code)

  There is no this issue on the ProRes source.

  Context :

  • MXF XDCAM HD 422 1080i50
  • from ProRes HQ 1080p25
  • AME (Adobe Media Encoder) 8 (CC 2014) & 9 (CC 2015)
  • MediaInfo

  TC break fixed with a new souce.

  How to match the TC ? Or how to remove Elementary stream TC ?
  In AME, there is no settings for this.

  Thanks.

  Jean Bertin replied 10 years, 2 months ago 1 Member · 0 Replies
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