73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*****************************************************************************\
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|*
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|* IN PACKAGE: Software Platform Builder
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|*
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|* COPYRIGHT: Copyright (c) 2008, Altium
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|*
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|* DESCRIPTION: Shows how to use the generic Audio driver
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|*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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// Application Stack interface
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#include "swplatform.h"
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#include "wave.h"
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// Audio file 'sound.bin' is defined compiletime in native endianness:
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#include "sound_bin.h"
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const int16_t sound_bin[] = const_sound_bin;
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// Audio file 'sound.wav' is linked at compiletime:
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extern __no_sdata uint8_t _lc_ub_sound_wav;
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extern __no_sdata uint8_t _lc_ue_sound_wav;
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void main( void )
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{
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int res;
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size_t samples;
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const int16_t * buf;
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wav_header_t info;
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// Say hello to the user
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puts( "Audio service example, " __FILE__ " compiled " __DATE__ ", " __TIME__ );
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// Generated initialization function
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swplatform_init_stacks();
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if ( audio == NULL )
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{
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puts( "Failed to initialize audio service" );
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abort();
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}
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puts( "Successfully initialized audio service\n" );
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for (;;)
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{
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info = wav_parseheader( (uintptr_t) &_lc_ub_sound_wav, (uintptr_t) &_lc_ue_sound_wav );
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if (wav_testsupported( info ))
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{
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printf( "Play 'sound.wav'\n-> " );
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wav_playfile( audio, info, (uintptr_t) &_lc_ub_sound_wav, (uintptr_t) &_lc_ue_sound_wav );
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}
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printf( "Play 'sound.bin'\n-> " );
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audio_set_format( audio, 22050, 1, 16 ); // 22 kHz, mono, 16 bits/sample
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audio_set_volume( audio, 255 ); // Volume fully open
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samples = sizeof(sound_bin) / sizeof(sound_bin[0]);
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printf( "Playing %d samples...", samples );
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for ( buf = sound_bin; samples; samples -= res )
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{
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res = audio_play( audio, buf, samples );
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buf += res;
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}
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puts( " done!" );
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}
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}
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