[CELT-dev] CELT in ffmpeg and API questions

Nicolas George nicolas.george at normalesup.org
Wed Apr 20 05:10:36 PDT 2011


I am glad to inform everyone here that support for decoding using libcelt
was just pushed to ffmpeg.

It raised a few API questions or issues:

* At least while it's experimental, having a constant in the library for the
  supported bitstream version would probably be useful. Something like that
  comes to mind:

  extern celt_int32 celt_bitstream_version;

  or, even better:

  int celt_bitstream_version_supported(celt_int32 version);

  Since dynamic linking is supported, a build-time constant is not suitable.
  Currently, I resorted to have libcelt generate a dummy header to get the
  version_id field.

* The header_size is set to 56, while the header is actually 60 bytes. Is it

* It seems that the celt_*_destroy all accept NULL without choking, just
  like libc's free. If this is on purpose, could it be stated in the


  Nicolas George
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