mirror of
https://github.com/clangen/musikcube.git
synced 2025-03-14 13:21:13 +00:00
PulseAudio output plugin seems to actually play stuff. But it's not pretty.
This commit is contained in:
clangen
parent
33bd0240b6
commit
3b05e294a8
@ -1,7 +1,7 @@
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#include "PulseOut.h"
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#include <iostream>
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#define BUFFER_COUNT 8
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#define BUFFER_COUNT 48 /* seems to work well? */
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using namespace musik::core::audio;
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@ -23,7 +23,7 @@ class MainLoopLock {
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static bool waitForCompletion(pa_operation *op, pa_threaded_mainloop *loop) {
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if (op) {
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pa_operation_state_t state;
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while ((state == pa_operation_get_state(op)) == PA_OPERATION_RUNNING) {
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while ((state = pa_operation_get_state(op)) == PA_OPERATION_RUNNING) {
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pa_threaded_mainloop_wait(loop);
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}
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@ -45,9 +45,16 @@ size_t PulseOut::CountBuffersWithProvider(IBufferProvider* provider) {
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}
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++it;
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}
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return count;
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}
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long long bufferLengthMicroSeconds(IBuffer* buffer) {
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long long samples = buffer->Samples();
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long long rate = buffer->SampleRate();
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return (samples * 1000000) / rate;
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}
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bool PulseOut::RemoveBufferFromQueue(BufferContext* context) {
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boost::recursive_mutex::scoped_lock bufferLock(this->mutex);
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@ -55,6 +62,7 @@ bool PulseOut::RemoveBufferFromQueue(BufferContext* context) {
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while (it != this->buffers.end()) {
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if ((*it).get() == context) {
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this->buffers.erase(it);
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this->bufferQueueLength -= bufferLengthMicroSeconds((*it)->buffer);
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return true;
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}
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++it;
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@ -66,10 +74,7 @@ bool PulseOut::RemoveBufferFromQueue(BufferContext* context) {
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void PulseOut::NotifyBufferCompleted(BufferContext* context) {
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IBufferProvider* provider = context->provider;
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IBuffer* buffer = context->buffer;
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if (this->RemoveBufferFromQueue(context)) {
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provider->OnBufferProcessed(buffer);
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}
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provider->OnBufferProcessed(buffer);
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}
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PulseOut::PulseOut() {
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@ -80,8 +85,9 @@ PulseOut::PulseOut() {
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this->pulseStreamFormat.format = PA_SAMPLE_FLOAT32LE;
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this->pulseStreamFormat.rate = 0;
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this->pulseStreamFormat.channels = 0;
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this->bufferQueueLength = 0.0f;
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boost::thread th(boost::bind(&PulseOut::ThreadProc,this));
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boost::thread th(boost::bind(&PulseOut::ThreadProc, this));
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th.detach();
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this->InitPulse();
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@ -93,19 +99,19 @@ bool PulseOut::Play(IBuffer *buffer, IBufferProvider *provider) {
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this->pulseStreamFormat.channels != buffer->Channels())
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{
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if (this->pulseStream) {
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std::cerr << "fixme: stream switched formats; not handled\n";
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std::cerr << "PulseOut: stream switched formats; not handled\n";
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return false;
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}
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this->DeinitPulseStream();
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if (!this->InitPulseStream(buffer->SampleRate(), buffer->Channels())) {
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std::cerr << "could not initialize stream for playback\n";
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std::cerr << "PulseOut: could not initialize stream for playback\n";
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return false;
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}
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}
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if (this->CountBuffersWithProvider(provider) >= BUFFER_COUNT) {
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std::cerr << "full!\n";
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// std::cerr << "PulseOut: buffers are full!\n";
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return false;
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}
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@ -116,13 +122,19 @@ bool PulseOut::Play(IBuffer *buffer, IBufferProvider *provider) {
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{
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boost::recursive_mutex::scoped_lock bufferLock(this->mutex);
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long long bufferLength = bufferLengthMicroSeconds(buffer);
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//std::cerr << "PulseOut: bufferLength " << bufferLength << std::endl;
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pa_usec_t currentTime;
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pa_stream_get_time(this->pulseStream, ¤tTime);
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context->endTime = bufferLength + currentTime + this->bufferQueueLength;
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this->bufferQueueLength += bufferLength;
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this->buffers.push_back(context);
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}
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MainLoopLock loopLock(this->pulseMainLoop);
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//std::cerr << buffer->Bytes() << std::endl;
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int error =
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pa_stream_write_ext_free(
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this->pulseStream,
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@ -134,11 +146,14 @@ bool PulseOut::Play(IBuffer *buffer, IBufferProvider *provider) {
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PA_SEEK_RELATIVE);
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if (error) {
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std::cerr << "FAILED!! " << error << std::endl;
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std::cerr << "PulseOut: FAILED!! this should not happen." << error << std::endl;
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this->NotifyBufferCompleted(context.get());
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}
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else {
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// std::cerr << "PulseOut: buffer enqueued!" << std::endl;
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}
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// std::cerr << "wrote " << (error ? "unsuccessfully" : "successfully") << std::endl;
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// std::cerr << "PulseOut: wrote " << (error ? "unsuccessfully" : "successfully") << std::endl;
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return !error;
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}
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@ -149,13 +164,56 @@ PulseOut::~PulseOut() {
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}
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void PulseOut::ThreadProc() {
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pa_usec_t lastTime = -1;
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pa_usec_t now;
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while (true) {
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pa_usec_t usec;
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if (this->pulseStream) {
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pa_stream_get_time(this->pulseStream, &usec);
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std::cerr << "time: " << usec << std::endl;
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pa_stream_get_time(this->pulseStream, &now);
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//std::cerr << "PulseOut: time now: " << now << std::endl;
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std::list<std::shared_ptr<BufferContext> > toNotify;
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{
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//std::cerr << "PulseOut: lastTime " << lastTime << " now " << now << std::endl;
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/* detect underrun */
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if (lastTime == now) {
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std::cerr << "PulseOut: UNDERRUN!" << std::endl;
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now = this->buffers.front()->endTime + 1;
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}
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boost::recursive_mutex::scoped_lock bufferLock(this->mutex);
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auto it = this->buffers.begin();
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while (it != this->buffers.end()) {
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if ((*it)->endTime <= now) {
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toNotify.push_back(*it);
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this->bufferQueueLength -= bufferLengthMicroSeconds((*it)->buffer);
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it = this->buffers.erase(it);
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}
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else {
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++it;
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}
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}
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if (!toNotify.size() && this->buffers.size()) {
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//std::cerr << "PulseOut: TOP TOO FAR AHEAD AT " << this->buffers.front()->endTime << std::endl;
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}
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else {
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//std::cerr << "PulseOut: we think we have something...?";
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}
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}
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auto it = toNotify.begin();
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while (it != toNotify.end()) {
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this->NotifyBufferCompleted((*it).get());
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++it;
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}
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}
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usleep(1000 * 1000);
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lastTime = now;
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usleep(50 * 1000);
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}
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}
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@ -173,7 +231,6 @@ void PulseOut::Resume() {
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void PulseOut::SetPaused(bool paused) {
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if (this->pulseStream) {
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std::cerr << "resuming... ";
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MainLoopLock loopLock(this->pulseMainLoop);
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waitForCompletion(
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pa_stream_cork(
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@ -182,7 +239,6 @@ void PulseOut::SetPaused(bool paused) {
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&PulseOut::OnPulseStreamSuccessCallback,
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this),
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this->pulseMainLoop);
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std::cerr << "resumed";
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}
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}
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@ -190,18 +246,43 @@ void PulseOut::SetVolume(double volume) {
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}
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void PulseOut::Stop() {
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std::deque<std::shared_ptr<BufferContext> > toNotify;
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{
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boost::recursive_mutex::scoped_lock bufferLock(this->mutex);
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if (this->pulseStream) {
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MainLoopLock loopLock(this->pulseMainLoop);
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std::swap(this->buffers, toNotify);
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waitForCompletion(
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pa_stream_flush(
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this->pulseStream,
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&PulseOut::OnPulseStreamSuccessCallback,
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this),
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this->pulseMainLoop);
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}
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}
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auto it = toNotify.begin();
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while (it != toNotify.end()) {
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this->bufferQueueLength -= bufferLengthMicroSeconds((*it)->buffer);
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this->NotifyBufferCompleted((*it).get());
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++it;
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}
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}
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void PulseOut::OnPulseBufferPlayed(void *data) {
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BufferContext* context = static_cast<BufferContext*>(data);
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context->output->NotifyBufferCompleted(context);
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// BufferContext* context = static_cast<BufferContext*>(data);
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// context->output->NotifyBufferCompleted(context);
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}
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void PulseOut::OnPulseContextStateChanged(pa_context *context, void *data) {
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PulseOut* out = static_cast<PulseOut*>(data);
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const pa_context_state_t state = pa_context_get_state(context);
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std::cerr << "context connection state changed: " << state << std::endl;
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std::cerr << "PulseOut: context connection state changed: " << state << std::endl;
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switch (state) {
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case PA_CONTEXT_READY:
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@ -217,7 +298,7 @@ void PulseOut::OnPulseStreamStateChanged(pa_stream *stream, void *data) {
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PulseOut* out = static_cast<PulseOut*>(data);
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const pa_stream_state_t state = pa_stream_get_state(stream);
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std::cerr << "stream connection state changed: " << state << std::endl;
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std::cerr << "PulseOut: stream connection state changed: " << state << std::endl;
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switch (state) {
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case PA_STREAM_READY:
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@ -234,7 +315,6 @@ void PulseOut::OnPulseStreamSuccessCallback(pa_stream *s, int success, void *dat
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pa_threaded_mainloop_signal(out->pulseMainLoop, 0);
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}
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void PulseOut::InitPulse() {
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if (!this->InitPulseEventLoopAndContext()) {
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this->DeinitPulse();
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@ -242,10 +322,10 @@ void PulseOut::InitPulse() {
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}
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bool PulseOut::InitPulseEventLoopAndContext() {
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std::cerr << "init...\n";
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std::cerr << "PulseOut: init...\n";
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this->pulseMainLoop = pa_threaded_mainloop_new();
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if (this->pulseMainLoop) {
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std::cerr << "init ok, starting...\n";
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std::cerr << "PulseOut: init ok, starting...\n";
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int error = pa_threaded_mainloop_start(this->pulseMainLoop);
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if (error) {
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@ -254,7 +334,7 @@ bool PulseOut::InitPulseEventLoopAndContext() {
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return false;
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}
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std::cerr << "started ok.\n";
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std::cerr << "PulseOut: started ok.\n";
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}
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pa_mainloop_api* api = pa_threaded_mainloop_get_api(this->pulseMainLoop);
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@ -264,7 +344,7 @@ bool PulseOut::InitPulseEventLoopAndContext() {
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this->pulseContext = pa_context_new(api, "musikcube");
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if (this->pulseContext) {
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std::cerr << "context created";
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std::cerr << "PulseOut: context created";
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pa_context_set_state_callback(
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this->pulseContext,
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@ -284,15 +364,15 @@ bool PulseOut::InitPulseEventLoopAndContext() {
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pa_context_get_state(this->pulseContext);
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if (state == PA_CONTEXT_READY) {
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std::cerr << "connected!\n";
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std::cerr << "PulseOut: connected!\n";
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connected = true;
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}
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else if (!PA_CONTEXT_IS_GOOD(state)) {
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std::cerr << "corrupted state! bailing.\n";
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std::cerr << "PulseOut: corrupted state! bailing.\n";
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error = true;
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}
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else {
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std::cerr << "waiting for connection...\n";
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std::cerr << "PulseOut: waiting for connection...\n";
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pa_threaded_mainloop_wait(this->pulseMainLoop);
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}
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}
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@ -306,59 +386,65 @@ bool PulseOut::InitPulseEventLoopAndContext() {
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}
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bool PulseOut::InitPulseStream(size_t rate, size_t channels) {
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MainLoopLock loopLock(this->pulseMainLoop);
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bool ready = false;
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this->pulseStreamFormat.rate = rate;
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this->pulseStreamFormat.channels = channels;
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{
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MainLoopLock loopLock(this->pulseMainLoop);
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this->pulseStream = pa_stream_new(
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this->pulseContext,
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"musikcube PulseOut stream",
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&this->pulseStreamFormat,
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NULL); /* channel mapping */
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this->pulseStreamFormat.rate = rate;
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this->pulseStreamFormat.channels = channels;
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std::cerr << "creating stream...\n";
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this->pulseStream = pa_stream_new(
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this->pulseContext,
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"musikcube PulseOut stream",
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&this->pulseStreamFormat,
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NULL); /* channel mapping */
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if (this->pulseStream) {
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std::cerr << "stream created.\n";
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std::cerr << "PulseOut: creating stream...\n";
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pa_stream_set_state_callback(
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this->pulseStream,
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&PulseOut::OnPulseStreamStateChanged,
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this);
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if (this->pulseStream) {
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std::cerr << "PulseOut: stream created.\n";
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std::cerr << "connecting the stream for playing...\n";
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pa_stream_set_state_callback(
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this->pulseStream,
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&PulseOut::OnPulseStreamStateChanged,
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this);
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int error = pa_stream_connect_playback(
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this->pulseStream,
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NULL, /* device id */
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NULL, /* buffering attributes */
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PA_STREAM_NOFLAGS, /* additional flags */
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NULL, /* initial volume. docs suggest NULL. */
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NULL); /* stream to synchronize with. */
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int flags =
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PA_STREAM_AUTO_TIMING_UPDATE |
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PA_STREAM_INTERPOLATE_TIMING;
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if (!error) {
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std::cerr << "connected. waiting for the stream to become ready\n";
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std::cerr << "PulseOut: connecting the stream for playing...\n";
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pa_threaded_mainloop_wait(this->pulseMainLoop);
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bool ready = pa_stream_get_state(this->pulseStream) == PA_STREAM_READY;
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int error = pa_stream_connect_playback(
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this->pulseStream,
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NULL, /* device id */
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NULL, /* buffering attributes */
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(pa_stream_flags_t) flags, /* additional flags */
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NULL, /* initial volume. docs suggest NULL. */
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NULL); /* stream to synchronize with. */
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std::cerr << (ready ? "stream is ready!" : "stream failed") << std::endl;
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if (!error) {
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std::cerr << "PulseOut: connected. waiting for the stream to become ready\n";
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if (ready) {
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this->Resume();
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pa_threaded_mainloop_wait(this->pulseMainLoop);
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ready = pa_stream_get_state(this->pulseStream) == PA_STREAM_READY;
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std::cerr << (ready ? "PulseOut: stream is ready!" : "stream failed") << std::endl;
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}
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return ready;
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}
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}
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return false;
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if (ready) {
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this->Resume();
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}
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return ready;
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}
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void PulseOut::DeinitPulseStream() {
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if (this->pulseStream) {
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std::cerr << "freeing stream...\n";
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std::cerr << "PulseOut: freeing stream...\n";
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MainLoopLock loopLock(this->pulseMainLoop);
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pa_stream_disconnect(this->pulseStream);
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pa_stream_unref(this->pulseStream);
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@ -370,7 +456,7 @@ void PulseOut::DeinitPulse() {
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this->DeinitPulseStream();
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if (this->pulseContext) {
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std::cerr << "freeing context...\n";
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std::cerr << "PulseOut: freeing context...\n";
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MainLoopLock loopLock(this->pulseMainLoop);
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pa_context_disconnect(this->pulseContext);
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pa_context_unref(this->pulseContext);
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@ -378,7 +464,7 @@ void PulseOut::DeinitPulse() {
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}
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if (this->pulseMainLoop) {
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std::cerr << "stopping...\n";
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std::cerr << "PulseOut: stopping...\n";
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pa_threaded_mainloop_stop(this->pulseMainLoop);
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pa_threaded_mainloop_free(this->pulseMainLoop);
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this->pulseMainLoop = NULL;
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@ -2,7 +2,7 @@
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#include <core/sdk/IOutput.h>
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#include <core/sdk/IBufferProvider.h>
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#include <queue>
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#include <deque>
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#include <boost/thread.hpp>
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#include <boost/thread/condition.hpp>
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#include <boost/thread/recursive_mutex.hpp>
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@ -28,6 +28,7 @@ class PulseOut : public musik::core::audio::IOutput {
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PulseOut *output;
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musik::core::audio::IBuffer *buffer;
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musik::core::audio::IBufferProvider *provider;
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long long endTime;
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};
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static void OnPulseContextStateChanged(pa_context *c, void *data);
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@ -35,7 +36,7 @@ class PulseOut : public musik::core::audio::IOutput {
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static void OnPulseStreamSuccessCallback(pa_stream *s, int success, void *data);
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static void OnPulseBufferPlayed(void *data);
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void ThreadProc();
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void ThreadProc(); /* ugh shoot me */
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void NotifyBufferCompleted(BufferContext *context);
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bool RemoveBufferFromQueue(BufferContext* context);
|
||||
@ -49,11 +50,12 @@ class PulseOut : public musik::core::audio::IOutput {
|
||||
void SetPaused(bool paused);
|
||||
|
||||
double volume;
|
||||
std::list<std::shared_ptr<BufferContext> > buffers;
|
||||
std::deque<std::shared_ptr<BufferContext> > buffers;
|
||||
boost::thread thread;
|
||||
boost::recursive_mutex mutex;
|
||||
pa_threaded_mainloop* pulseMainLoop;
|
||||
pa_context* pulseContext;
|
||||
pa_stream* pulseStream;
|
||||
pa_sample_spec pulseStreamFormat;
|
||||
double bufferQueueLength;
|
||||
};
|
||||
|
||||
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Reference in New Issue
Block a user