[FFmpeg-trac] #1864(undetermined:new): support 0x350 TwoCC (ADPCM codec)

FFmpeg trac at avcodec.org
Mon Oct 29 16:16:43 CET 2012


#1864: support 0x350 TwoCC (ADPCM codec)
-------------------------------------+-------------------------------------
               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
-------------------------------------+-------------------------------------
 it's "Micronas InterMetall Speech MI-SC4 ADPCM", decodes with noise for
 example with "-acodec adpcm_ct"

 http://wiki.multimedia.cx/index.php?title=Micronas_SC4

 {{{
 C:\>ffmpeg -i 32khz_stereo.wav
 ffmpeg version N-45867-g3318d6b Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Oct 23 2012 02:39:33 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-w32threads --enable-memalign-hack --enable-runtime-
 cpudetect
 --enable-cross-compile --enable-static --disable-shared --extra-
 libs='-lws2_32 -
 lwinmm -lpthread' --extra-cflags='--static
 -I/var/www/users/research/ffmpeg/snap
 shots/build/include' --extra-ldflags='-static
 -L/var/www/users/research/ffmpeg/s
 napshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-
 version3
 --enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora
 --enable-
 libvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb
 --enable-
 libopencore-amrwb --enable-libmp3lame --enable-libvpx --disable-
 decoder=libvpx
   libavutil      51. 77.100 / 51. 77.100
   libavcodec     54. 68.100 / 54. 68.100
   libavformat    54. 33.100 / 54. 33.100
   libavdevice    54.  3.100 / 54.  3.100
   libavfilter     3. 20.104 /  3. 20.104
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 16.100 /  0. 16.100
   libpostproc    52.  1.100 / 52.  1.100
 [wav @ 0x1edbe00] Could not find codec parameters for stream 0 (Audio:
 none (P[3
 ][0][0] / 0x0350), 32000 Hz, 2 channels, 264 kb/s): unknown codec
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 [wav @ 0x1edbe00] Estimating duration from bitrate, this may be inaccurate
 32khz_stereo.wav: could not find codec parameters
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1864>
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