[FFmpeg-trac] #5468(avcodec:open): on2avc (0x0501): improve decoding of stereo modes

FFmpeg trac at avcodec.org
Sat May 21 18:31:49 CEST 2016


#5468: on2avc (0x0501): improve decoding of stereo modes
------------------------------------+-----------------------------------
             Reporter:  ami_stuff   |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  on2avc      |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+-----------------------------------

Comment (by ami_stuff):

 attached some more samples

 {{{
 C:\>ffmpeg -i "48khz_mono_256kbps.avi -f null -
 ffmpeg version N-80043-g1499242 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 4.5.0 (GCC) 20100414 (Fedora MinGW 4.5.0-1.fc14)
   configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build
 --arch=
 x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686
 -pc-min
 gw32-gcc' --enable-pthreads --enable-memalign-hack --enable-runtime-
 cpudetect --
 enable-cross-compile --enable-static --disable-shared --extra-
 libs='-lws2_32 -lw
 inmm -lpthread' --extra-cflags='--static
 -I/var/www/users/research/ffmpeg/snapsh
 ots/build/include' --extra-ldflags='-static
 -L/var/www/users/research/ffmpeg/sna
 pshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-
 version3 --
 enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora
 --enable-li
 bvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb
 --enable-li
 bopencore-amrwb --enable-libmp3lame --enable-libfreetype --enable-libvpx
 --disab
 le-decoder=libvpx
   libavutil      55. 24.100 / 55. 24.100
   libavcodec     57. 42.100 / 57. 42.100
   libavformat    57. 36.100 / 57. 36.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 46.100 /  6. 46.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, avi, from '48khz_mono_256kbps.avi':
   Duration: 00:00:30.08, start: 0.000000, bitrate: 414 kb/s
     Stream #0:0: Video: msvideo1 (MSVC / 0x4356534D), rgb555le, 320x240,
 144 kb/
 s, 25 fps, 25 tbr, 25 tbn
     Stream #0:1: Audio: avc ([1][5][0][0] / 0x0501), 48000 Hz, mono, fltp,
 256 k
 b/s
 [null @ 0x28ce020] Using AVStream.codec to pass codec parameters to muxers
 is de
 precated, use AVStream.codecpar instead.
     Last message repeated 1 times
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf57.36.100
     Stream #0:0: Video: wrapped_avframe, rgb555le, 320x240, q=2-31, 200
 kb/s, 25
  fps, 25 tbn
     Metadata:
       encoder         : Lavc57.42.100 wrapped_avframe
     Stream #0:1: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
     Metadata:
       encoder         : Lavc57.42.100 pcm_s16le
 Stream mapping:
   Stream #0:0 -> #0:0 (msvideo1 (native) -> wrapped_avframe (native))
   Stream #0:1 -> #0:1 (avc (on2avc) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 0x28cfac0] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 frame=  752 fps=0.0 q=-0.0 Lsize=N/A time=00:00:30.08 bitrate=N/A speed=
 107x

 video:282kB audio:2706kB subtitle:0kB other streams:0kB global headers:0kB
 muxin
 g overhead: unknown
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5468#comment:4>
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