This function retrieves buffers containing decoded audio samples, similarly
Chris@1: to vorbis_synthesis_pcmout.
Chris@1: However, it includes some extra samples extrapolated from the end of
Chris@1: the audio, suitable for crosslapping with other blocks. This exists mainly
Chris@1: for libvorbisfile to use for
Chris@1: handling chained bitstreams and bitstreams with holes.
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Chris@1: extern int vorbis_synthesis_lapout(vorbis_dsp_state *v,float ***pcm);
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A pointer to a float** which will be made to point to an array of
Chris@1: pointers to the decoded samples for each channel. The memory is owned
Chris@1: by the decoder instance and will be freed when the application continues
Chris@1: decoding or destroys the decoder instance. This can be NULL, in which
Chris@1: case the return value gives the number of samples that would be returned
Chris@1: if this function were called with a non-NULL pointer here.
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Return Values
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The number of samples available in the output buffer.