Unsupported tak codec

[Carl Eugen Hoyos]

(bug 546)
A user uploaded a tak sample (cut with dd) that cannot be decoded with current git head.

$ ffmpeg -i 01.tak out.wav
ffmpeg version N-55249-ga7bb12a Copyright (c) 2000-2013 the FFmpeg developers
  built on Aug  6 2013 08:47:17 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl --disable-indev=jack
  libavutil      52. 40.100 / 52. 40.100
  libavcodec     55. 20.100 / 55. 20.100
  libavformat    55. 13.102 / 55. 13.102
  libavdevice    55.  3.100 / 55.  3.100
  libavfilter     3. 82.100 /  3. 82.100
  libswscale      2.  4.100 /  2.  4.100
  libswresample   0. 17.103 /  0. 17.103
  libpostproc    52.  3.100 / 52.  3.100
Guessed Channel Layout for  Input Stream #0.0 : stereo
Input #0, tak, from '01.tak':
  Duration: 00:51:26.69, start: 0.000000, bitrate: 2 kb/s
    Stream #0:0: Audio: tak, 44100 Hz, stereo, s16p
Output #0, wav, to 'out.wav':
  Metadata:
    ISFT            : Lavf55.13.102
    Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo, s16, 1411 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (tak -> pcm_s16le)
Press [q] to stop, [?] for help
[tak @ 0x2357cc0] unsupported codec: 0
[tak @ 0x2358140] unsupported codec: 0
[tak @ 0x23694e0] unsupported codec: 0
[tak @ 0x2369d40] unsupported codec: 0
[tak @ 0x2341540] unsupported codec: 0
[tak @ 0x2343200] unsupported codec: 0
[tak @ 0x2344ee0] unsupported codec: 0
[tak @ 0x2346bc0] unsupported codec: 0
Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
[tak @ 0x23488a0] unsupported codec: 0
Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome

...

[tak @ 0x2346bc0] unsupported codec: 0
Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
[tak @ 0x23488a0] unsupported codec: 0
Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
[tak @ 0x2357cc0] unsupported codec: 0
size=       0kB time=00:00:00.00 bitrate=N/A
video:0kB audio:0kB subtitle:0 global headers:0kB muxing overhead inf%
Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

[ami_stuff]

some more samples are here:

​http://www.datafilehost.com/d/02dc11ed

[ami_stuff]

TAK 1.0 encodes such files, here are binaries:

​http://www.datafilehost.com/d/203027ee

[Elon Musk]

Original TAK author is not happy with our implementation, or even idea of open source implementation of this codec.

So to protect us from any possible suing, this variant will not be implemented.

Please refrain from asking more and direct any questions to original TAK codec author.