Re-order the functions so they're in line with every other player: Constructor,
Destructor, Open, Close, Play, Stop.. I rue the fact that I didn't do this at the start. Originally committed to SVN as r2809.
This commit is contained in:
Amar Takhar
parent
d77c119d63
commit
49e3895180
1 changed files with 82 additions and 84 deletions
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@ -85,37 +85,66 @@ PortAudioPlayer::~PortAudioPlayer() {
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if (!--pa_refcount) Pa_Terminate();
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if (!--pa_refcount) Pa_Terminate();
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}
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}
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//////////////////////
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/// PortAudio callback
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int PortAudioPlayer::paCallback(const void *inputBuffer, void *outputBuffer, unsigned long framesPerBuffer, const PaStreamCallbackTimeInfo* timeInfo, PaStreamCallbackFlags statusFlags, void *userData) {
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// Get provider
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///////////////
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PortAudioPlayer *player = (PortAudioPlayer *) userData;
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// Open stream
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AudioProvider *provider = player->GetProvider();
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void PortAudioPlayer::OpenStream() {
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// Open stream
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PaStreamParameters pa_output_p;
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#ifdef PORTAUDIO2_DEBUG
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int pa_config_default = Options.AsInt(_T("Audio PortAudio Device"));
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printf("paCallBack: playPos: %lld startPos: %lld paStart: %f Pa_GetStreamTime: %f AdcTime: %f DacTime: %f framesPerBuffer: %lu CPU: %f\n",
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PaDeviceIndex pa_device;
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player->playPos, player->startPos, player->paStart, Pa_GetStreamTime(player->stream),
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timeInfo->inputBufferAdcTime, timeInfo->outputBufferDacTime, framesPerBuffer, Pa_GetStreamCpuLoad(player->stream));
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#endif
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// Calculate how much left
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if (pa_config_default < 0) {
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int64_t lenAvailable = (player->endPos - player->playPos) > 0 ? framesPerBuffer : 0;
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pa_device = Pa_GetDefaultOutputDevice();
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wxLogDebug(_T("PortAudioPlayer::OpenStream Using Default Output Device: %d"), pa_device);
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} else {
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// Play something
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pa_device = pa_config_default;
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if (lenAvailable > 0) {
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wxLogDebug(_T("PortAudioPlayer::OpenStream Using Config Device: %d"), pa_device);
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provider->GetAudioWithVolume(outputBuffer, player->playPos, lenAvailable, player->GetVolume());
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// Set play position
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player->playPos += framesPerBuffer;
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// Continue as normal
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return 0;
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}
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}
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// Abort stream and stop the callback.
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pa_output_p.device = pa_device;
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return paAbort;
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pa_output_p.channelCount = provider->GetChannels();
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pa_output_p.sampleFormat = paInt16;
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pa_output_p.suggestedLatency = Pa_GetDeviceInfo(pa_device)->defaultLowOutputLatency;
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pa_output_p.hostApiSpecificStreamInfo = NULL;
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wxLogDebug(_T("PortAudioPlayer::OpenStream Output channels: %d, Latency: %f Sample Rate: %ld\n"),
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pa_output_p.channelCount, pa_output_p.suggestedLatency, pa_output_p.sampleFormat);
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PaError err = Pa_OpenStream(&stream, NULL, &pa_output_p, provider->GetSampleRate(), 256, paPrimeOutputBuffersUsingStreamCallback, paCallback, this);
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if (err != paNoError) {
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const PaHostErrorInfo *pa_err = Pa_GetLastHostErrorInfo();
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if (pa_err->errorCode != 0) {
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wxLogDebug(_T("PortAudioPlayer::OpenStream HostError: API: %d, %s (%ld)\n"), pa_err->hostApiType, pa_err->errorText, pa_err->errorCode);
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}
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throw wxString(_T("Failed initializing PortAudio stream with error: ") + wxString(Pa_GetErrorText(err),wxConvLocal));
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}
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}
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///////////////
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// Close stream
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void PortAudioPlayer::CloseStream() {
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try {
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Stop(false);
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Pa_CloseStream(stream);
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} catch (...) {}
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}
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// Called when the callback has finished.
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void PortAudioPlayer::paStreamFinishedCallback(void *userData) {
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PortAudioPlayer *player = (PortAudioPlayer *) userData;
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player->playing = false;
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if (player->displayTimer) {
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player->displayTimer->Stop();
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}
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wxLogDebug(_T("PortAudioPlayer::paStreamFinishedCallback Stopping stream."));
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}
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}
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@ -172,68 +201,38 @@ void PortAudioPlayer::Stop(bool timerToo) {
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}
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}
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}
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}
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//////////////////////////////////////////////
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// Called when the callback has finished.
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void PortAudioPlayer::paStreamFinishedCallback(void *userData) {
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//////////////////////
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PortAudioPlayer *player = (PortAudioPlayer *) userData;
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/// PortAudio callback
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int PortAudioPlayer::paCallback(const void *inputBuffer, void *outputBuffer, unsigned long framesPerBuffer, const PaStreamCallbackTimeInfo* timeInfo, PaStreamCallbackFlags statusFlags, void *userData) {
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player->playing = false;
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// Get provider
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PortAudioPlayer *player = (PortAudioPlayer *) userData;
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AudioProvider *provider = player->GetProvider();
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if (player->displayTimer) {
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#ifdef PORTAUDIO2_DEBUG
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player->displayTimer->Stop();
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printf("paCallBack: playPos: %lld startPos: %lld paStart: %f Pa_GetStreamTime: %f AdcTime: %f DacTime: %f framesPerBuffer: %lu CPU: %f\n",
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player->playPos, player->startPos, player->paStart, Pa_GetStreamTime(player->stream),
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timeInfo->inputBufferAdcTime, timeInfo->outputBufferDacTime, framesPerBuffer, Pa_GetStreamCpuLoad(player->stream));
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#endif
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// Calculate how much left
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int64_t lenAvailable = (player->endPos - player->playPos) > 0 ? framesPerBuffer : 0;
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// Play something
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if (lenAvailable > 0) {
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provider->GetAudioWithVolume(outputBuffer, player->playPos, lenAvailable, player->GetVolume());
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// Set play position
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player->playPos += framesPerBuffer;
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// Continue as normal
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return 0;
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}
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}
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wxLogDebug(_T("PortAudioPlayer::paStreamFinishedCallback Stopping stream."));
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// Abort stream and stop the callback.
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}
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return paAbort;
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///////////////
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// Open stream
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void PortAudioPlayer::OpenStream() {
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// Open stream
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PaStreamParameters pa_output_p;
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int pa_config_default = Options.AsInt(_T("Audio PortAudio Device"));
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PaDeviceIndex pa_device;
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if (pa_config_default < 0) {
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pa_device = Pa_GetDefaultOutputDevice();
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wxLogDebug(_T("PortAudioPlayer::OpenStream Using Default Output Device: %d"), pa_device);
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} else {
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pa_device = pa_config_default;
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wxLogDebug(_T("PortAudioPlayer::OpenStream Using Config Device: %d"), pa_device);
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}
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pa_output_p.device = pa_device;
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pa_output_p.channelCount = provider->GetChannels();
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pa_output_p.sampleFormat = paInt16;
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pa_output_p.suggestedLatency = Pa_GetDeviceInfo(pa_device)->defaultLowOutputLatency;
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pa_output_p.hostApiSpecificStreamInfo = NULL;
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wxLogDebug(_T("PortAudioPlayer::OpenStream Output channels: %d, Latency: %f Sample Rate: %ld\n"),
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pa_output_p.channelCount, pa_output_p.suggestedLatency, pa_output_p.sampleFormat);
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PaError err = Pa_OpenStream(&stream, NULL, &pa_output_p, provider->GetSampleRate(), 256, paPrimeOutputBuffersUsingStreamCallback, paCallback, this);
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if (err != paNoError) {
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const PaHostErrorInfo *pa_err = Pa_GetLastHostErrorInfo();
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if (pa_err->errorCode != 0) {
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wxLogDebug(_T("PortAudioPlayer::OpenStream HostError: API: %d, %s (%ld)\n"), pa_err->hostApiType, pa_err->errorText, pa_err->errorCode);
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}
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throw wxString(_T("Failed initializing PortAudio stream with error: ") + wxString(Pa_GetErrorText(err),wxConvLocal));
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}
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}
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///////////////
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// Close stream
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void PortAudioPlayer::CloseStream() {
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try {
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Stop(false);
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Pa_CloseStream(stream);
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} catch (...) {}
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}
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}
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@ -260,7 +259,6 @@ int64_t PortAudioPlayer::GetCurrentPosition()
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}
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}
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///////////////
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///////////////
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/// Return a list of available output devices.
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/// Return a list of available output devices.
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/// @param Setting from config file.
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/// @param Setting from config file.
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