[FFmpeg-trac] #2580(avcodec:new): FLV h264 video decoding corrupted

FFmpeg trac at avcodec.org
Fri May 17 00:18:39 CEST 2013


#2580: FLV h264 video decoding corrupted
-------------------------------------+-----------------------------------
             Reporter:  relevante    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  unspecified  |               Resolution:
             Keywords:  h264         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-----------------------------------

Comment (by relevante):

 Replying to [comment:5 cehoyos]:
 > Replying to [comment:4 ubitux]:
 > > {{{
 > > % ./ffmpeg -i /tmp/58af5798-fa2c-42a2-997d-dc8e49de2d8a.flv -t 17 -an
 -f null -
 > > }}}
 >
 > How does this command line allow to reproduce the problem?

 Looks like the same result:

 jnsears at jnsmacbookpro Downloads$ ffmpeg -i 58af5798-fa2c-42a2-997d-
 dc8e49de2d8a.flv -t 17 -an -f null -
 ffmpeg version N-53159-gd94c907 Copyright (c) 2000-2013 the FFmpeg
 developers
   built on May 16 2013 15:29:14 with llvm-gcc 4.2.1 (LLVM build
 2336.11.00)
   configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-
 postproc --enable-libaacplus --enable-libass --enable-libcelt --enable-
 libfaac --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-openssl --enable-libopus --enable-libschroedinger --enable-
 libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvorbis
 --enable-libvpx --enable-libx264 --enable-libxvid --prefix=/usr/local
   libavutil      52. 32.100 / 52. 32.100
   libavcodec     55.  9.100 / 55.  9.100
   libavformat    55.  7.100 / 55.  7.100
   libavdevice    55.  0.100 / 55.  0.100
   libavfilter     3. 68.101 /  3. 68.101
   libswscale      2.  3.100 /  2.  3.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  3.100 / 52.  3.100
 Input #0, flv, from '58af5798-fa2c-42a2-997d-dc8e49de2d8a.flv':
   Metadata:
     creationdate    : Wed May 8 10:49:33
   Duration: 00:09:56.16, start: 0.000000, bitrate: 346 kb/s
     Stream #0:0: Video: h264 (Baseline), yuv420p, 192x144, 15 tbr, 1k tbn,
 2k tbc
     Stream #0:1: Audio: speex, 16000 Hz, mono, s16
 Output #0, null, to 'pipe:':
   Metadata:
     creationdate    : Wed May 8 10:49:33
     encoder         : Lavf55.7.100
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 192x144,
 q=2-31, 200 kb/s, 90k tbn, 15 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (h264 -> rawvideo)
 Press [q] to stop, [?] for help
 [null @ 0x7ff7aa08b600] Encoder did not produce proper pts, making some
 up.
 [h264 @ 0x7ff7aa085400] Overread VUI by 2 bits
 [h264 @ 0x7ff7aa085400] left block unavailable for requested intra mode at
 0 8
 [h264 @ 0x7ff7aa085400] error while decoding MB 0 8
 [h264 @ 0x7ff7aa085400] concealing 61 DC, 61 AC, 61 MV errors in I frame
 [h264 @ 0x7ff7aa083000] out of range intra chroma pred mode at 0 4
 [h264 @ 0x7ff7aa083000] error while decoding MB 0 4
 [h264 @ 0x7ff7aa083000] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa083000] concealing 108 DC, 108 AC, 108 MV errors in P
 frame
 [h264 @ 0x7ff7aa083600] left block unavailable for requested intra mode at
 0 2
 [h264 @ 0x7ff7aa083600] error while decoding MB 0 2
 [h264 @ 0x7ff7aa083600] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa083600] concealing 108 DC, 108 AC, 108 MV errors in P
 frame
 [h264 @ 0x7ff7aa083c00] negative number of zero coeffs at 0 2
 [h264 @ 0x7ff7aa083c00] error while decoding MB 0 2
 [h264 @ 0x7ff7aa083c00] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa083c00] concealing 108 DC, 108 AC, 108 MV errors in P
 frame
 [h264 @ 0x7ff7aa084200] out of range intra chroma pred mode at 6 4
 [h264 @ 0x7ff7aa084200] error while decoding MB 6 4
 [h264 @ 0x7ff7aa084200] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa084200] concealing 103 DC, 103 AC, 103 MV errors in P
 frame
 [h264 @ 0x7ff7aa084e00] P sub_mb_type 8 out of range at 6 1
 [h264 @ 0x7ff7aa084e00] error while decoding MB 6 1
 [h264 @ 0x7ff7aa084e00] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa084e00] concealing 108 DC, 108 AC, 108 MV errors in P
 frame
 [h264 @ 0x7ff7aa085400] P sub_mb_type 32 out of range at 0 4
 [h264 @ 0x7ff7aa085400] error while decoding MB 0 4
 [h264 @ 0x7ff7aa085400] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa085400] concealing 108 DC, 108 AC, 108 MV errors in P
 frame
 [h264 @ 0x7ff7aa083000] P sub_mb_type 25 out of range at 0 2
 [h264 @ 0x7ff7aa083000] error while decoding MB 0 2
 [h264 @ 0x7ff7aa083000] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa083000] concealing 108 DC, 108 AC, 108 MV errors in P
 frame
 [h264 @ 0x7ff7aa083600] P sub_mb_type 6 out of range at 6 8
 [h264 @ 0x7ff7aa083600] error while decoding MB 6 8
 [h264 @ 0x7ff7aa083600] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa083600] concealing 55 DC, 55 AC, 55 MV errors in P frame
 [h264 @ 0x7ff7aa084200] Overread VUI by 2 bits
 [h264 @ 0x7ff7aa084200] negative number of zero coeffs at 8 1
 [h264 @ 0x7ff7aa084200] error while decoding MB 8 1
 [h264 @ 0x7ff7aa084200] concealing 108 DC, 108 AC, 108 MV errors in I
 frame
 [h264 @ 0x7ff7aa085400] out of range intra chroma pred mode at 1 1
 [h264 @ 0x7ff7aa085400] error while decoding MB 1 1
 [h264 @ 0x7ff7aa085400] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa085400] concealing 108 DC, 108 AC, 108 MV errors in P
 frame
 [h264 @ 0x7ff7aa085a00] mb_type 498 in P slice too large at 10 3
 [h264 @ 0x7ff7aa085a00] error while decoding MB 10 3
 [h264 @ 0x7ff7aa085a00] Cannot use next picture in error concealment
 [h264 @ 0x7ff7aa085a00] concealing 108 DC, 108 AC, 108 MV errors in P
 frame
 frame=  255 fps=0.0 q=0.0 Lsize=N/A time=00:00:17.00 bitrate=N/A dup=14
 drop=0
 video:24kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 -100.089869%

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2580#comment:7>
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