mvGetAudioWidth(3dm)					  mvGetAudioWidth(3dm)

NAME    [Toc]    [Back]

     mvGetAudioWidth, mvGetAudioRate, mvGetAudioChannels, mvGetAudioFormat,
     mvGetAudioCompression, - get and set the parameters of a an audio track

SYNOPSIS    [Toc]    [Back]

     #include <dmedia/moviefile.h>


     int mvGetAudioWidth( MVid audioTrack )
     double mvGetAudioRate( MVid audioTrack )
     int mvGetAudioChannels( MVid audioTrack )
     DMaudioformat mvGetAudioFormat( MVid audioTrack )
     const char* mvGetAudioCompression(	MVid audioTrack	)

DESCRIPTION    [Toc]    [Back]

     All of the	data accessed by these functions can also be accessed using
     mvGetParamsmvGetAudioWidth returns the number	of bits	used to	store each audio
     sample.  The movie	library	supports 8-bit and 16-bit audio	samples.

     mvGetAudioRate returns the	number of samples per second.

     mvGetAudioChannels	returns	the number of audio channels, 1	for mono and 2
     for stereo.

     mvGetAudioFormat returns the format used to store each sample:  either
     DM_AUDIO_TWOS_COMPLEMENT or DM_AUDIO_UNSIGNED.

     mvGetAudioCompression returns the compression scheme used for the audio
     data in this track.  Since	movies do not support audio compression, the
     only valid	value is DM_AUDIO_UNCOMPRESSED.	 The strings returned are
     owned by the movie	library	and must not be	freed.	If an application
     needs to keep the returned	string,	it should be copied.

     These "get" functions have	no indication of error return.	The movie
     library guarantees	that all audio tracks have all of these	parameters
     defined.

SEE ALSO    [Toc]    [Back]

     mvIntro(3dm), mvCreate(3dm), mvOpen(3dm), mvAddTrack(3dm),
     mvOptimize(3dm), mvGetErrno(3dm).


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