RTT_PACKAGE_BTSTACK/example/mod_player.c

/*
 * Copyright (C) 2014 BlueKitchen GmbH
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the copyright holders nor the names of
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 * 4. Any redistribution, use, or modification is done solely for
 *    personal benefit and not for any commercial purpose or for
 *    monetary gain.
 *
 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS
 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * Please inquire about commercial licensing options at 
 * contact@bluekitchen-gmbh.com
 *
 */

#define BTSTACK_FILE__ "mod_player.c"
// *****************************************************************************
/* EXAMPLE_START(mod_player): Audio Driver - Play 80's MOD Song
 *
 */

#include "btstack.h"
#include "hxcmod.h"
#include "mods/mod.h"
#include <stdio.h>

static modcontext mod_context;

static void audio_playback(int16_t * buffer, uint16_t num_samples){
	hxcmod_fillbuffer(&mod_context, (unsigned short *) buffer, num_samples, NULL);
}

int btstack_main(int argc, const char * argv[]);
int btstack_main(int argc, const char * argv[]){
    (void)argc;
    (void)argv;

    // load mod
	int hxcmod_initialized = hxcmod_init(&mod_context);
    if (!hxcmod_initialized) return 10;

    hxcmod_setcfg(&mod_context, 44100, 16, 1, 1, 1);
    hxcmod_load(&mod_context, (void *) &mod_data, mod_len);

    // setup audio playback
    const btstack_audio_sink_t * audio = btstack_audio_sink_get_instance();
    if (!audio){
        printf("BTstack Audio Sink not setup\n");
        return 10;
    }
    audio->init(2, 44100, &audio_playback);
    audio->start_stream();

    return 0;
}

/* EXAMPLE_END */