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audio_core: Clean up cubeb backend. (#6677)

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This commit is contained in:
Steveice10
2023-07-11 21:43:07 -07:00
committed by GitHub
parent a94af8ea62
commit f3ac6f054f
2 changed files with 71 additions and 70 deletions
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67
src/audio_core/cubeb_input.cpp
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@@ -37,39 +37,33 @@ CubebInput::CubebInput(std::string device_id)
}
CubebInput::~CubebInput() {
if (!impl->ctx)
return;
if (impl->stream) {
if (cubeb_stream_stop(impl->stream) != CUBEB_OK) {
LOG_ERROR(Audio, "Error stopping cubeb input stream.");
}
cubeb_stream_destroy(impl->stream);
}
cubeb_destroy(impl->ctx);
if (impl->ctx) {
cubeb_destroy(impl->ctx);
}
}
void CubebInput::StartSampling(const InputParameters& params) {
// Cubeb apparently only supports signed 16 bit PCM (and float32 which the 3ds doesn't support)
// TODO resample the input stream
// TODO: Resample the input stream.
if (params.sign == Signedness::Unsigned) {
LOG_ERROR(Audio,
"Application requested unsupported unsigned pcm format. Falling back to signed");
"Application requested unsupported unsigned pcm format. Falling back to signed.");
}
impl->sample_size_in_bytes = params.sample_size / 8;
parameters = params;
is_sampling = true;
impl->sample_size_in_bytes = params.sample_size / 8;
cubeb_devid input_device = nullptr;
if (device_id != auto_device_name && !device_id.empty()) {
cubeb_device_collection collection;
if (cubeb_enumerate_devices(impl->ctx, CUBEB_DEVICE_TYPE_INPUT, &collection) != CUBEB_OK) {
LOG_WARNING(Audio, "Audio input device enumeration not supported");
} else {
if (cubeb_enumerate_devices(impl->ctx, CUBEB_DEVICE_TYPE_INPUT, &collection) == CUBEB_OK) {
const auto collection_end = collection.device + collection.count;
const auto device = std::find_if(
collection.device, collection_end, [this](const cubeb_device_info& info) {
@@ -79,39 +73,42 @@ void CubebInput::StartSampling(const InputParameters& params) {
input_device = device->devid;
}
cubeb_device_collection_destroy(impl->ctx, &collection);
} else {
LOG_WARNING(Audio_Sink,
"Audio input device enumeration not supported, using default device.");
}
}
cubeb_stream_params input_params;
input_params.channels = 1;
input_params.layout = CUBEB_LAYOUT_UNDEFINED;
input_params.prefs = CUBEB_STREAM_PREF_NONE;
input_params.format = CUBEB_SAMPLE_S16LE;
input_params.rate = params.sample_rate;
cubeb_stream_params input_params = {
.format = CUBEB_SAMPLE_S16LE,
.rate = params.sample_rate,
.channels = 1,
.layout = CUBEB_LAYOUT_UNDEFINED,
};
u32 latency_frames = 512; // Firefox default
if (cubeb_get_min_latency(impl->ctx, &input_params, &latency_frames) != CUBEB_OK) {
LOG_ERROR(Audio, "Could not get minimum latency");
LOG_WARNING(Audio, "Error getting minimum input latency, falling back to default latency.");
}
if (cubeb_stream_init(impl->ctx, &impl->stream, "Citra Microphone", input_device, &input_params,
nullptr, nullptr, latency_frames, Impl::DataCallback, Impl::StateCallback,
impl.get()) != CUBEB_OK) {
LOG_CRITICAL(Audio, "Error creating cubeb input stream");
is_sampling = false;
LOG_CRITICAL(Audio, "Error creating cubeb input stream.");
return;
}
if (cubeb_stream_start(impl->stream) != CUBEB_OK) {
LOG_CRITICAL(Audio, "Error starting cubeb input stream");
is_sampling = false;
LOG_CRITICAL(Audio, "Error starting cubeb input stream.");
cubeb_stream_destroy(impl->stream);
impl->stream = nullptr;
return;
}
is_sampling = true;
}
void CubebInput::StopSampling() {
// TODO(xperia64): Destroy the stream for now to avoid a leak because StartSampling
// reinitializes the stream every time
if (impl->stream) {
cubeb_stream_stop(impl->stream);
cubeb_stream_destroy(impl->stream);
@@ -121,8 +118,14 @@ void CubebInput::StopSampling() {
}
void CubebInput::AdjustSampleRate(u32 sample_rate) {
// TODO This should restart the stream with the new sample rate
LOG_ERROR(Audio, "AdjustSampleRate unimplemented!");
if (!is_sampling) {
return;
}
auto new_parameters = parameters;
new_parameters.sample_rate = sample_rate;
StopSampling();
StartSampling(new_parameters);
}
Samples CubebInput::Read() {
@@ -136,7 +139,7 @@ Samples CubebInput::Read() {
long CubebInput::Impl::DataCallback(cubeb_stream* stream, void* user_data, const void* input_buffer,
void* output_buffer, long num_frames) {
Impl* impl = static_cast<Impl*>(user_data);
auto impl = static_cast<Impl*>(user_data);
if (!impl) {
return 0;
}
@@ -177,9 +180,7 @@ std::vector<std::string> ListCubebInputDevices() {
}
cubeb_device_collection collection;
if (cubeb_enumerate_devices(ctx, CUBEB_DEVICE_TYPE_INPUT, &collection) != CUBEB_OK) {
LOG_WARNING(Audio_Sink, "Audio input device enumeration not supported");
} else {
if (cubeb_enumerate_devices(ctx, CUBEB_DEVICE_TYPE_INPUT, &collection) == CUBEB_OK) {
for (std::size_t i = 0; i < collection.count; i++) {
const cubeb_device_info& device = collection.device[i];
if (device.state == CUBEB_DEVICE_STATE_ENABLED && device.friendly_name) {
@@ -187,6 +188,8 @@ std::vector<std::string> ListCubebInputDevices() {
}
}
cubeb_device_collection_destroy(ctx, &collection);
} else {
LOG_WARNING(Audio_Sink, "Audio input device enumeration not supported.");
}
cubeb_destroy(ctx);