[FFmpeg-trac] #6015(undetermined:new): on2avc (0x0501): fix decoding of mono modes

[FFmpeg]

#6015: on2avc (0x0501): fix decoding of mono modes
-------------------------------------+-------------------------------------
               Reporter:  ami_stuff  |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:             |  undetermined
  unspecified                        |               Keywords:
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 I can create more samples upon request.


 from old ffmpeg:

 {{{
 [on2avc @ 03912420] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 03912420] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 03912420] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 03912420] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 03912420] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 [on2avc @ 03912420] stereo mode window for mono audio
 Error while decoding stream #0:1: Invalid data found when processing input
 }}}

 {{{
 C:\>ffmpeg -i mono_44khz_256kbps.vp7 out.wav
 ffmpeg version 3.2.git Copyright (c) 2000-2016 the FFmpeg developers
   built with gcc 4.6.2 (GCC)
   configuration: --disable-pthreads --enable-gpl --disable-ffprobe
   libavutil      55. 36.100 / 55. 36.100
   libavcodec     57. 66.101 / 57. 66.101
   libavformat    57. 57.100 / 57. 57.100
   libavdevice    57.  2.100 / 57.  2.100
   libavfilter     6. 66.100 /  6. 66.100
   libswscale      4.  3.100 /  4.  3.100
   libswresample   2.  4.100 /  2.  4.100
   libpostproc    54.  2.100 / 54.  2.100
 [vp7 @ 0222d2c0] Warning: not compiled with thread support, using thread
 emulati
 on
 [on2avc @ 025b88c0] Warning: not compiled with thread support, using
 thread emul
 ation
 Input #0, avi, from 'mono_44khz_256kbps.vp7':
   Duration: 00:00:37.94, start: 0.000000, bitrate: 369 kb/s
     Stream #0:0: Video: vp7 (VP70 / 0x30375056), yuv420p, 320x240, 107
 kb/s, 23.
 97 fps, 23.97 tbr, 23.97 tbn, 23.97 tbc
     Stream #0:1: Audio: avc ([1][5][0][0] / 0x0501), 44100 Hz, mono, fltp,
 256 k
 b/s
 [on2avc @ 0222f860] Warning: not compiled with thread support, using
 thread emul
 ation
 [pcm_s16le @ 025d3820] Warning: not compiled with thread support, using
 thread e
 mulation
 Output #0, wav, to 'out.wav':
   Metadata:
     ISFT            : Lavf57.57.100
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono,
 s16,
 705 kb/s
     Metadata:
       encoder         : Lavc57.66.101 pcm_s16le
 Stream mapping:
   Stream #0:1 -> #0:0 (avc (on2avc) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 size=    3268kB time=00:00:37.94 bitrate= 705.6kbits/s speed= 173x
 video:0kB audio:3268kB subtitle:0kB other streams:0kB global headers:0kB
 muxing
 overhead: 0.002331%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6015>
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