[FFmpeg-trac] #9556(undetermined:new): Demux Error with AVC 422 Intra - Not supported ?

FFmpeg trac at avcodec.org
Sat Dec 18 14:03:15 EET 2021


#9556: Demux Error with AVC 422 Intra - Not supported ?
-------------------------------------+-------------------------------------
             Reporter:  Nicolas      |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  AVC 422      |               Blocked By:
  Intra                              |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Nicolas):

 Thanks for the feedback !

 > Please note that mxf is using Annex B AVC bitsream, so if you go from
 mp4 that technically does not support Annex B you must insert -bsf
 h264_mp4toannexb. See this patch by mkver:
 https://patchwork.ffmpeg.org/project/ffmpeg/patch/AM7PR03MB66600B2742E305A97C277D898F929@AM7PR03MB6660.eurprd03.prod.outlook.com/

 Thanks for the info, however here I'm just going from MXF to MXF !
 [[BR]]

 > which is colour_range_Original and is the same as Color range: Min: 0,
 Max: 1023, Chroma range: 1023 same for Format_Profile_Original which now
 says High 4:2:2 Intra at L5.1.
 >
 > But that is correct: for new file Color range - 1024 (0x400) (8 bytes)
 which is correct because you count from 1 there
 abd58a4192e4c5ea721b22365c211d8fa874f3d2 (I suppose 0 is reserved for
 something?).

 I'm not sure to follow, are you saying that going from "High 4:2:2
 Intra at L5.1" to "High 4:2:2 @L5.1" + Color_Range change is normal then ?
 [[BR]]


 > so no Profile Constraint.

 Is it another bug ? Or could it be linked to the color shift we can see in
 Premiere Pro ?
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9556#comment:4>
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