/** RPC command handler.
@param func command (one of AUDSRV_x)
@param data pointer to data array
@param size size of data array (in bytes)
@returns value depends on function invoked
This is a single rpc handler, it unpacks the data array and calls
local functions.
*/
static void *rpc_command(int func, unsigned *data, int size)
{
int ret;
/* printf("audsrv: rpc command %d\n", func); */
switch(func)
{
case AUDSRV_INIT:
ret = audsrv_init();
break;
case AUDSRV_FORMAT_OK:
ret = audsrv_format_ok(data[0], data[1], data[2]);
break;
case AUDSRV_SET_FORMAT:
ret = audsrv_set_format(data[0], data[1], data[2]);
break;
case AUDSRV_WAIT_AUDIO:
ret = audsrv_wait_audio(data[0]);
break;
case AUDSRV_PLAY_AUDIO:
ret = audsrv_play_audio((const char *)&data[1], data[0]);
break;
case AUDSRV_STOP_AUDIO:
ret = audsrv_stop_audio();
break;
case AUDSRV_SET_VOLUME:
ret = audsrv_set_volume(data[0]);
break;
case AUDSRV_QUIT:
ret = audsrv_quit();
break;
case AUDSRV_PLAY_CD:
ret = audsrv_play_cd(data[0]);
break;
case AUDSRV_STOP_CD:
ret = audsrv_stop_cd();
break;
case AUDSRV_GET_CDPOS:
ret = audsrv_get_cdpos();
break;
case AUDSRV_GET_TRACKPOS:
ret = audsrv_get_trackpos();
break;
case AUDSRV_SET_THRESHOLD:
ret = audsrv_set_threshold(data[0]);
break;
case AUDSRV_GET_NUMTRACKS:
ret = audsrv_get_numtracks();
break;
case AUDSRV_GET_TRACKOFFSET:
ret = audsrv_get_track_offset(data[0]);
break;
case AUDSRV_PLAY_SECTORS:
ret = audsrv_cd_play_sectors(data[0], data[1]);
break;
case AUDSRV_GET_CD_STATUS:
ret = audsrv_get_cd_status();
break;
case AUDSRV_GET_CD_TYPE:
ret = audsrv_get_cd_type();
break;
case AUDSRV_PAUSE_CD:
ret = audsrv_cd_pause();
break;
case AUDSRV_RESUME_CD:
ret = audsrv_cd_resume();
break;
case AUDSRV_INIT_ADPCM:
ret = audsrv_adpcm_init();
break;
case AUDSRV_LOAD_ADPCM:
return audsrv_load_adpcm((u32*)data[0], data[1], data[2]);
case AUDSRV_PLAY_ADPCM:
ret = audsrv_play_adpcm(data[0]);
break;
default:
ret = -1;
break;
}
data[0] = ret;
return data;
}
int main(int argc, char **argv)
{
int ret;
int played;
int err;
char chunk[2048];
FILE *wav;
struct audsrv_fmt_t format;
SifInitRpc(0);
printf("sample: kicking IRXs\n");
ret = SifLoadModule("rom0:LIBSD", 0, NULL);
printf("libsd loadmodule %d\n", ret);
printf("sample: loading audsrv\n");
ret = SifLoadModule("host:audsrv.irx", 0, NULL);
printf("audsrv loadmodule %d\n", ret);
ret = audsrv_init();
if (ret != 0)
{
printf("sample: failed to initialize audsrv\n");
printf("audsrv returned error string: %s\n", audsrv_get_error_string());
return 1;
}
format.bits = 16;
format.freq = 22050;
format.channels = 2;
err = audsrv_set_format(&format);
printf("set format returned %d\n", err);
printf("audsrv returned error string: %s\n", audsrv_get_error_string());
audsrv_set_volume(MAX_VOLUME);
wav = fopen("host:song_22k.wav", "rb");
if (wav == NULL)
{
printf("failed to open wav file\n");
audsrv_quit();
return 1;
}
fseek(wav, 0x30, SEEK_SET);
printf("starting play loop\n");
played = 0;
while (1)
{
ret = fread(chunk, 1, sizeof(chunk), wav);
if (ret > 0)
{
audsrv_wait_audio(ret);
audsrv_play_audio(chunk, ret);
}
if (ret < sizeof(chunk))
{
/* no more data */
break;
}
played++;
if (played % 8 == 0)
{
printf(".");
}
if (played == 512) break;
}
fclose(wav);
printf("sample: stopping audsrv\n");
audsrv_quit();
printf("sample: ended\n");
return 0;
}
