[FFmpeg-trac] #868(undetermined:open): chained ogg video streams not supported

[FFmpeg]

#868: chained ogg video streams not supported
-------------------------------------+-------------------------------------
             Reporter:  richardpl    |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  ogg theora   |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  1
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * keywords:   => ogg theora
 * status:  new => open
 * component:  avformat => undetermined
 * reproduced:  0 => 1


Comment:

 The video (uploaded to samples/ffmpeg-bugs/trac/ticket868) changes
 resolution twice, from 320x240 to 336x256 and from 336x256 to 352x288,
 FFmpeg does not support the resolution changes, plays fine with vlc.
 {{{
 $ ffmpeg -i chained_streams.ogg -r 30 out.avi
 ffmpeg version N-44632-ga16c512 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Sep 20 2012 16:11:00 with gcc 4.5.3 (GCC)
   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --enable-gpl
   libavutil      51. 73.101 / 51. 73.101
   libavcodec     54. 56.100 / 54. 56.100
   libavformat    54. 27.101 / 54. 27.101
   libavdevice    54.  2.101 / 54.  2.101
   libavfilter     3. 16.105 /  3. 16.105
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [theora @ 0x14f6840] 7 bits left in packet 82
 [ogg @ 0x14f0240] Estimating duration from bitrate, this may be inaccurate
 Input #0, ogg, from 'chained_streams.ogg':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: theora, yuv420p, 320x240, 30 tbr, 30 tbn, 30 tbc
 [theora @ 0x1600ae0] 7 bits left in packet 82
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf54.27.101
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240,
 q=2-31, 200 kb/s, 30 tbn, 30 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (theora -> mpeg4)
 Press [q] to stop, [?] for help
 [theora @ 0x1600ae0] Coefficient index overflow
     Last message repeated 35 times
 [theora @ 0x1774000] Invalid partially coded superblock run length
 [theora @ 0x1774000] error in unpack_superblocks
 [theora @ 0x17835a0] Invalid partially coded superblock run length
 [theora @ 0x17835a0] [theora @ 0x1600ae0] Invalid partially coded
 superblock run length
 [theora @ 0x1600ae0] error in unpack_superblocks
 Error while decoding stream #0:0: Operation not permitted
 error in unpack_superblocks
 [theora @ 0x1774000] Invalid partially coded superblock run length
 Error while decoding stream #0:0: Operation not permitted
 [theora @ 0x1774000] error in unpack_superblocks
 [theora @ 0x17835a0] Invalid partially coded superblock run length
 Error while decoding stream #0:0: Operation not permitted
 [theora @ 0x17835a0] error in unpack_superblocks
 [theora @ 0x1600ae0] Invalid partially coded superblock run length
 Error while decoding stream #0:0: Operation not permitted
 [theora @ 0x1600ae0] error in unpack_superblocks
 [theora @ 0x1774000] Invalid partially coded superblock run length
 Error while decoding stream #0:0: Operation not permitted
 [theora @ 0x1774000] error in unpack_superblocks

 ...

 [theora @ 0x17835a0] error in unpack_superblocks
 [theora @ 0x1600ae0] Invalid partially coded superblock run length
 Error while decoding stream #0:0: Operation not permitted
 [theora @ 0x1600ae0] error in unpack_superblocks
 [theora @ 0x1774000] Invalid partially coded superblock run length
 Error while decoding stream #0:0: Operation not permitted
 [theora @ 0x1774000] error in unpack_superblocks
 [theora @ 0x17835a0] Invalid partially coded superblock run length
 Error while decoding stream #0:0: Operation not permitted
 [theora @ 0x17835a0] error in unpack_superblocks
 [ogg @ 0x14f0240] Codec not found
     Last message repeated 129 times
 [theora @ 0x14f6840] Invalid media type for audio
 frame=  120 fps=0.0 q=20.1 Lsize=     173kB time=00:00:04.00 bitrate=
 354.4kbits/s dup=0 drop=2
 video:165kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 5.113620%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/868#comment:2>
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