[FFmpeg-trac] #2141(avformat:open): FFMPEG fails to mux VC-1 Video from MKV to MPEG-TS container

FFmpeg trac at avcodec.org
Tue Jan 15 21:13:40 CET 2013


#2141: FFMPEG fails to mux VC-1 Video from MKV to MPEG-TS container
-------------------------------------+-------------------------------------
             Reporter:  turkey-      |                    Owner:
  studdins                           |                   Status:  open
                 Type:  defect       |                Component:  avformat
             Priority:  normal       |               Resolution:
              Version:  git-master   |               Blocked By:
             Keywords:  mpegts vc1   |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by turkey-studdins):

 Replying to [comment:4 cehoyos]:
 > {{{
 > $ ffmpeg -i fate-suite/vc1/SA20021.vc1 -vcodec copy out.ts
 > ffmpeg version N-48932-gc994bb2 Copyright (c) 2000-2013 the FFmpeg
 developers
 >   built on Jan 15 2013 20:46:16 with gcc 4.7 (SUSE Linux)
 >   configuration: --enable-gpl --disable-indev=jack
 >   libavutil      52. 15.100 / 52. 15.100
 >   libavcodec     54. 89.100 / 54. 89.100
 >   libavformat    54. 60.100 / 54. 60.100
 >   libavdevice    54.  3.102 / 54.  3.102
 >   libavfilter     3. 32.100 /  3. 32.100
 >   libswscale      2.  1.103 /  2.  1.103
 >   libswresample   0. 17.102 /  0. 17.102
 >   libpostproc    52.  2.100 / 52.  2.100
 > [vc1 @ 0x1a38de0] Estimating duration from bitrate, this may be
 inaccurate
 > Input #0, vc1, from 'fate-suite/vc1/SA20021.vc1':
 >   Duration: N/A, bitrate: N/A
 >     Stream #0:0: Video: vc1 (Advanced), yuv420p, 704x480 [SAR 1:1 DAR
 22:15], 25 fps, 25 tbr, 1200k tbn, 25 tbc
 > Output #0, mpegts, to 'out.ts':
 >   Metadata:
 >     encoder         : Lavf54.60.100
 >     Stream #0:0: Video: vc1, yuv420p, 704x480 [SAR 1:1 DAR 22:15],
 q=2-31, 25 fps, 90k tbn, 25 tbc
 > Stream mapping:
 >   Stream #0:0 -> #0:0 (copy)
 > Press [q] to stop, [?] for help
 > frame=   60 fps=0.0 q=-1.0 Lsize=     821kB time=00:00:02.40
 bitrate=2803.7kbits/s
 > video:754kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 8.948803%
 > }}}
 > {{{
 > $ ffmpeg -probesize 2G -analyzeduration 2G -i out.ts
 > ffmpeg version N-48932-gc994bb2 Copyright (c) 2000-2013 the FFmpeg
 developers
 >   built on Jan 15 2013 20:46:16 with gcc 4.7 (SUSE Linux)
 >   configuration: --enable-gpl --disable-indev=jack
 >   libavutil      52. 15.100 / 52. 15.100
 >   libavcodec     54. 89.100 / 54. 89.100
 >   libavformat    54. 60.100 / 54. 60.100
 >   libavdevice    54.  3.102 / 54.  3.102
 >   libavfilter     3. 32.100 /  3. 32.100
 >   libswscale      2.  1.103 /  2.  1.103
 >   libswresample   0. 17.102 /  0. 17.102
 >   libpostproc    52.  2.100 / 52.  2.100
 > [mpegts @ 0x283b6a0] probed stream 0 failed
 > [mpegts @ 0x283b6a0] Could not find codec parameters for stream 0
 (Unknown: none ([6][0][0][0] / 0x0006)): unknown codec
 > Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 > out.ts: could not find codec parameters
 > }}}

 Happy to roll my sleeves up and attempt a fix - not sure where to start
 looking though.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2141#comment:5>
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