[FFmpeg-trac] #674(undetermined:new): -vtag won't force a fourcc of 'mpeg' for an mpeg2video codec

[FFmpeg]

#674: -vtag won't force a fourcc of 'mpeg' for an mpeg2video codec
-------------------------------------+-------------------------------------
             Reporter:  dericed      |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I need to use 'mpeg' as a fourcc with mpeg2video codec. I know this is
 wrong, but seems to be necessary to get the file to with an Omneon product
 I'm using. When I try to use -tag:v mpeg to force the codec, ffmpeg
 doesn't allow me to 'force'.

 {{{
 ffmpeg -y -i example.mov -tag:v mpeg -vcodec mpeg2video examplempeg.mov
 ffmpeg version N-30853-gf955fdc, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Nov  1 2011 00:17:17 with gcc 4.2.1 (Apple Inc. build 5666)
 (dot 3)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD --enable-shared
 --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables
 --cc=/usr/bin/gcc-4.2 --enable-libx264 --enable-libfaac --enable-
 libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-
 libxvid
   libavutil    51. 22. 0 / 51. 22. 0
   libavcodec   53. 26. 0 / 53. 26. 0
   libavformat  53. 18. 0 / 53. 18. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 45. 3 /  2. 45. 3
   libswscale    2.  1. 0 /  2.  1. 0
   libpostproc  51.  2. 0 / 51.  2. 0

 Seems stream 0 codec frame rate differs from container frame rate:
 30000.00 (30000/1) -> 29.97 (30000/1001)
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'example.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2011-11-18 00:59:10
   Duration: 00:00:05.93, start: 0.000033, bitrate: 223728 kb/s
     Stream #0:0(eng): Video: v210 (v210 / 0x30313276), yuv422p10le,
 720x486, 223725 kb/s, SAR 9:10 DAR 4:3, 29.97 fps, 29.97 tbr, 30k tbn, 30k
 tbc
     Metadata:
       creation_time   : 2011-11-18 00:59:10
       handler_name    : ?Apple Alias Data Handler
 Incompatible pixel format 'yuv422p10le' for codec 'mpeg2video', auto-
 selecting format 'yuv420p'
 [buffer @ 0x7fe6d1419580] w:720 h:486 pixfmt:yuv422p10le tb:1/1000000
 sar:9/10 sws_param:
 [buffersink @ 0x7fe6d14197e0] auto-inserting filter 'auto-inserted scale
 0' between the filter 'src' and the filter 'out'
 [scale @ 0x7fe6d1419bc0] w:720 h:486 fmt:yuv422p10le -> w:720 h:486
 fmt:yuv420p flags:0x4
 [mov @ 0x7fe6d1862800] Tag mpeg/0x6765706d incompatible with output codec
 id '2'
 Output #0, mov, to 'examplempeg.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2011-11-18 00:59:10
     Stream #0:0(eng): Video: mpeg2video (mpeg / 0x6765706D), yuv420p,
 720x486 [SAR 9:10 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 29.97 tbc
     Metadata:
       creation_time   : 2011-11-18 00:59:10
       handler_name    : ?Apple Alias Data Handler
 Stream mapping:
   Stream #0.0 -> #0.0 (v210 -> mpeg2video)
 Could not write header for output file #0 (incorrect codec parameters ?)

 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/674>
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