int AalibUnload(int channel)
{
if ((channel<1)||(channel>48))
{
return PSPAALIB_ERROR_INVALID_CHANNEL;
}
channels[channel].initialized=FALSE;
if ((PSPAALIB_CHANNEL_WAV_1<=channel)&&(channel<=PSPAALIB_CHANNEL_WAV_32))
{
return UnloadWav(channel-PSPAALIB_CHANNEL_WAV_1);
}
if ((PSPAALIB_CHANNEL_OGG_1<=channel)&&(channel<=PSPAALIB_CHANNEL_OGG_10))
{
return UnloadOgg(channel-PSPAALIB_CHANNEL_OGG_1);
}
if ((PSPAALIB_CHANNEL_SCEMP3_1<=channel)&&(channel<=PSPAALIB_CHANNEL_SCEMP3_2))
{
return UnloadSceMp3(channel-PSPAALIB_CHANNEL_SCEMP3_1);
}
if ((PSPAALIB_CHANNEL_AT3_1<=channel)&&(channel<=PSPAALIB_CHANNEL_AT3_2))
{
return UnloadAt3(channel-PSPAALIB_CHANNEL_AT3_1);
}
return PSPAALIB_ERROR_INVALID_CHANNEL;
}
int LoadWav(cccUCS2* filename,int channel,int loadToRam)
{
if ((channel<0)||(channel>31))
{
return PSPAALIB_ERROR_WAV_INVALID_CHANNEL;
}
if (streamsWav[channel].initialized) UnloadWav(channel);
int chunks=0,size=0;
short compressionCode=0;
char temp[5];
temp[4]='\0';
streamsWav[channel].loadToRam=loadToRam;
streamsWav[channel].file=sceIoOpenUCS2(filename,PSP_O_RDONLY,0777);
if (streamsWav[channel].file<=0)
{
return PSPAALIB_ERROR_WAV_INVALID_FILE;
}
sceIoRead(streamsWav[channel].file,temp,4);
if (strcmp(temp,"RIFF"))
{
sceIoClose(streamsWav[channel].file);
return PSPAALIB_ERROR_WAV_INVALID_FILE;
}
sceIoRead(streamsWav[channel].file,&size,4);
sceIoRead(streamsWav[channel].file,temp,4);
if (strcmp(temp,"WAVE"))
{
sceIoClose(streamsWav[channel].file);
return PSPAALIB_ERROR_WAV_INVALID_FILE;
}
while (chunks<2)
{
sceIoRead(streamsWav[channel].file,temp,4);
if (!strcmp(temp,"fmt "))
{
sceIoRead(streamsWav[channel].file,&size,4);
sceIoRead(streamsWav[channel].file,&compressionCode,2);
if ((compressionCode!=0)&&(compressionCode!=1))
{
sceIoClose(streamsWav[channel].file);
return PSPAALIB_ERROR_WAV_COMPRESSED_FILE;
}
sceIoRead(streamsWav[channel].file,&(streamsWav[channel].numChannels),2);
sceIoRead(streamsWav[channel].file,&(streamsWav[channel].sampleRate),4);
sceIoRead(streamsWav[channel].file,&(streamsWav[channel].bytesPerSecond),4);
sceIoLseek(streamsWav[channel].file,2,PSP_SEEK_CUR);
sceIoRead(streamsWav[channel].file,&(streamsWav[channel].sigBytes),2);
streamsWav[channel].sigBytes=streamsWav[channel].sigBytes>>3;
sceIoLseek(streamsWav[channel].file,size-16,PSP_SEEK_CUR);
chunks++;
continue;
}
if (!strcmp(temp,"data"))
{
if (chunks<1)
{
sceIoClose(streamsWav[channel].file);
return PSPAALIB_ERROR_WAV_INVALID_FILE;
}
sceIoRead(streamsWav[channel].file,&(streamsWav[channel].dataLength),4);
streamsWav[channel].dataLocation=sceIoLseek(streamsWav[channel].file,0,PSP_SEEK_CUR);
if (streamsWav[channel].loadToRam)
{
streamsWav[channel].data=(char*) malloc(streamsWav[channel].dataLength);
if(!streamsWav[channel].data)
{
sceIoClose(streamsWav[channel].file);
return PSPAALIB_ERROR_WAV_INSUFFICIENT_RAM;
}
sceIoRead(streamsWav[channel].file,streamsWav[channel].data,streamsWav[channel].dataLength);
}
else
{
streamsWav[channel].data=(char*) malloc(2*1024*streamsWav[channel].sigBytes*streamsWav[channel].numChannels*streamsWav[channel].sampleRate/PSP_SAMPLE_RATE);
if(!streamsWav[channel].data)
{
sceIoClose(streamsWav[channel].file);
return PSPAALIB_ERROR_WAV_INSUFFICIENT_RAM;
}
}
streamsWav[channel].dataPos=0;
chunks++;
continue;
}
sceIoRead(streamsWav[channel].file,&size,4);
sceIoLseek(streamsWav[channel].file,size,PSP_SEEK_CUR);
}