dmDVAudioDecode(3dm)					  dmDVAudioDecode(3dm)

NAME    [Toc]    [Back]

     dmDVAudioDecode - implements DV and DVCPRO	audio decompression

SYNOPSIS    [Toc]    [Back]

     #include <dmedia/dm_audioutil.h>

     DMstatus dmDVAudioDecode(DMDVaudiodecoder handle,
			  void *ibuf, void *obuf, int *nsamples)

PARAMETER    [Toc]    [Back]

     handle    DMDVaudiodecoder	structure, created by
	       dmDVAudioDecoderCreate(3dm), specifies the states of the	signal
	       processing parameters.


     ibuf      pointer to input	compressed data	buffer,	which is a complete
	       DIF frame with embedded audio.  See dm_dv(3dm) for more
	       information about DIF frames, DV, and DVCPRO. The DIF input
	       buffer size must	be either DM_DVAUDIO_NTSC_DIF_FRAMESIZE	or
	       DM_DVAUDIO_PAL_DIF_FRAMESIZE.


     obuf      pointer to output sample	data buffer.  The data format is short
	       (16-bit).  The samples are assumed to be	two's complement.
	       Sampling	rate can be 32 kHz, 44.1 kHz, or 48 kHz.


     nsamples  number of samples to be processed.  This	returns	the number of
	       samples actually	processed.

RETURNED VALUE    [Toc]    [Back]

     Returns DM_FAILURE	or DM_SUCCESS.

DESCRIPTION    [Toc]    [Back]

     dmDVAudioDecode(3dm) implements DV	decompression.

SEE ALSO    [Toc]    [Back]

     dmDVAudioDecoderCreate(3dm), dmDVAudioDecoderSetParams(3dm),
     dmDVAudioDecoderDestroy(3dm), dmDVAudioEncode(3dm)


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