Time Sound::getPlayingOffset() const
{
if (getStatus() == Stopped)
return Time::Zero;
if (getStatus() == Paused)
return m_pauseOffset;
u32 samplePos = ndspChnGetSamplePos(m_channel);
return seconds(static_cast<float>(samplePos) / m_buffer->getSampleRate()) + m_playOffset;
}
// startMusic: Plays a song with network streaming feature
void startMusic(Socket* sock, Music* src)
{
closeStream = false;
src->streamLoop = false; // TODO: Add looping feature
songPointer = 0;
netSize = 0;
u32 ch = 0x08;
u32 ch2 = 0x09;
bool non_native_encode = false;
ThreadFunc streamFunction = streamWAV;
u8 tmp_encode;
/*if (src->encoding == CSND_ENCODING_VORBIS){
streamFunction = streamOGG;
tmp_encode = src->encoding;
src->encoding = CSND_ENCODING_PCM16;
non_native_encode = true;
}*/
int raw_format;
if (src->audiotype == 1) raw_format = NDSP_FORMAT_MONO_PCM16;
else raw_format = NDSP_FORMAT_STEREO_PCM16;
ndspChnReset(ch);
ndspChnWaveBufClear(ch);
ndspChnSetInterp(ch, NDSP_INTERP_LINEAR);
ndspChnSetRate(ch, float(src->samplerate));
ndspChnSetFormat(ch, raw_format);
ndspWaveBuf* waveBuf = (ndspWaveBuf*)calloc(1, sizeof(ndspWaveBuf));
createDspBlock(waveBuf, src->bytepersample, src->mem_size, 0, (u32*)src->audiobuf);
src->blocks = NULL;
populatePurgeTable(src, waveBuf);
ndspChnWaveBufAdd(ch, waveBuf);
src->tick = osGetTime();
src->wavebuf = waveBuf;
src->ch = ch;
src->isPlaying = true;
src->lastCheck = ndspChnGetSamplePos(ch);
src->streamLoop = false;
svcCreateEvent(&updateStream,0);
cachePackage* pkg = (cachePackage*)malloc(sizeof(cachePackage));
pkg->client = sock;
pkg->song = src;
svcSignalEvent(updateStream);
threadCreate(streamFunction, pkg, 8192, 0x18, 0, true);
src->isPlaying = true;
}
void streamWAV(void* arg){
// Fetching cachePackage struct from main thread
cachePackage* pack = (cachePackage*)arg;
while(1) {
// Waiting for updateStream event
svcWaitSynchronization(updateStream, U64_MAX);
svcClearEvent(updateStream);
// Close the thread if closeStream event received
if(closeStream){
closeStream = false;
svcExitThread();
}
// Check if the current stream is paused or not
Music* src = pack->song;
Socket* Client = pack->client;
if (src->isPlaying){
// Check if a free buffer is available
if (src->wavebuf2 == NULL){
// Check if file reached EOF
if (src->audio_pointer >= src->size){
// Check if playback ended
if (!ndspChnIsPlaying(src->ch)){
src->isPlaying = false;
src->tick = (osGetTime()-src->tick);
}
continue;
}
// Swap audiobuffers
u8* tmp = src->audiobuf;
src->audiobuf = src->audiobuf2;
src->audiobuf2 = tmp;
// Create a new block for DSP service
u32 bytesRead;
src->wavebuf2 = (ndspWaveBuf*)calloc(1,sizeof(ndspWaveBuf));
createDspBlock(src->wavebuf2, src->bytepersample, src->mem_size, 0, (u32*)src->audiobuf);
populatePurgeTable(src, src->wavebuf2);
ndspChnWaveBufAdd(src->ch, src->wavebuf2);
socketSend(Client, "exec2:0000");
u32 processedBytes = 0;
netSize = 0;
while (netSize <= 0) heapRecv(Client, 2048);
while (processedBytes < (src->mem_size / 2)){
if (netSize <= 0){
heapRecv(Client, 2048);
continue;
}
if (strncmp((char*)netBuffer, "EOF", 3) == 0) break;
memcpy(&streamCache[songPointer + processedBytes], netBuffer, netSize);
processedBytes = processedBytes + netSize;
heapRecv(Client, 2048);
}
memcpy(src->audiobuf, &streamCache[songPointer], src->mem_size);
if (songPointer == 0) songPointer = src->mem_size / 2;
else songPointer = 0;
src->audio_pointer = src->audio_pointer + src->mem_size;
// Changing endianess if Big Endian
if (src->big_endian){
u64 i = 0;
while (i < src->mem_size){
u8 tmp = src->audiobuf[i];
src->audiobuf[i] = src->audiobuf[i+1];
src->audiobuf[i+1] = tmp;
i=i+2;
}
}
}
// Check if a block playback is finished
u32 curSample = ndspChnGetSamplePos(src->ch);
if (src->lastCheck > curSample){
// Prepare next block
src->wavebuf = src->wavebuf2;
src->wavebuf2 = NULL;
}
// Update sample position tick
src->lastCheck = curSample;
}
}
}
