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Update coreaudio backend for stream format renaming

This commit is contained in:
mitchmindtree 2020-01-28 15:03:27 +01:00
parent e0da586f77
commit 3a692f8bca
2 changed files with 67 additions and 61 deletions
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6
src/host/coreaudio/enumerate.rs
View File

@ -9,7 +9,7 @@ use super::Device;
use std::mem;
use std::ptr::null;
use std::vec::IntoIter as VecIntoIter;
use {BackendSpecificError, DevicesError, SupportedFormat};
use {BackendSpecificError, DevicesError, SupportedStreamConfigRange};
unsafe fn audio_devices() -> Result<Vec<AudioDeviceID>, OSStatus> {
let property_address = AudioObjectPropertyAddress {
@ -143,5 +143,5 @@ pub fn default_output_device() -> Option<Device> {
Some(device)
}
pub type SupportedInputFormats = VecIntoIter<SupportedFormat>;
pub type SupportedOutputFormats = VecIntoIter<SupportedFormat>;
pub type SupportedInputConfigs = VecIntoIter<SupportedStreamConfigRange>;
pub type SupportedOutputConfigs = VecIntoIter<SupportedStreamConfigRange>;

122
src/host/coreaudio/mod.rs
View File

@ -20,9 +20,9 @@ use self::coreaudio::sys::{
};
use crate::traits::{DeviceTrait, HostTrait, StreamTrait};
use crate::{
BackendSpecificError, BuildStreamError, ChannelCount, Data, DefaultFormatError,
DeviceNameError, DevicesError, Format, PauseStreamError, PlayStreamError, SampleFormat,
SampleRate, StreamError, SupportedFormat, SupportedFormatsError,
BackendSpecificError, BuildStreamError, ChannelCount, Data, DefaultStreamConfigError,
DeviceNameError, DevicesError, PauseStreamError, PlayStreamError, SampleFormat, SampleRate,
StreamError, SupportedStreamConfig, SupportedStreamConfigRange, SupportedStreamConfigsError,
};
use std::cell::RefCell;
use std::ffi::CStr;
@ -37,8 +37,8 @@ use std::time::Duration;
mod enumerate;
pub use self::enumerate::{
default_input_device, default_output_device, Devices, SupportedInputFormats,
SupportedOutputFormats,
default_input_device, default_output_device, Devices, SupportedInputConfigs,
SupportedOutputConfigs,
};
/// Coreaudio host, the default host on macOS and iOS.
@ -74,37 +74,37 @@ impl HostTrait for Host {
}
impl DeviceTrait for Device {
type SupportedInputFormats = SupportedInputFormats;
type SupportedOutputFormats = SupportedOutputFormats;
type SupportedInputConfigs = SupportedInputConfigs;
type SupportedOutputConfigs = SupportedOutputConfigs;
type Stream = Stream;
fn name(&self) -> Result<String, DeviceNameError> {
Device::name(self)
}
fn supported_input_formats(
fn supported_input_configs(
&self,
) -> Result<Self::SupportedInputFormats, SupportedFormatsError> {
Device::supported_input_formats(self)
) -> Result<Self::SupportedInputConfigs, SupportedStreamConfigsError> {
Device::supported_input_configs(self)
}
fn supported_output_formats(
fn supported_output_configs(
&self,
) -> Result<Self::SupportedOutputFormats, SupportedFormatsError> {
Device::supported_output_formats(self)
) -> Result<Self::SupportedOutputConfigs, SupportedStreamConfigsError> {
Device::supported_output_configs(self)
}
fn default_input_format(&self) -> Result<Format, DefaultFormatError> {
Device::default_input_format(self)
fn default_input_config(&self) -> Result<SupportedStreamConfig, DefaultStreamConfigError> {
Device::default_input_config(self)
}
fn default_output_format(&self) -> Result<Format, DefaultFormatError> {
Device::default_output_format(self)
fn default_output_config(&self) -> Result<SupportedStreamConfig, DefaultStreamConfigError> {
Device::default_output_config(self)
}
fn build_input_stream_raw<D, E>(
&self,
format: &Format,
config: &SupportedStreamConfig,
data_callback: D,
error_callback: E,
) -> Result<Self::Stream, BuildStreamError>
@ -112,12 +112,12 @@ impl DeviceTrait for Device {
D: FnMut(&Data) + Send + 'static,
E: FnMut(StreamError) + Send + 'static,
{
Device::build_input_stream_raw(self, format, data_callback, error_callback)
Device::build_input_stream_raw(self, config, data_callback, error_callback)
}
fn build_output_stream_raw<D, E>(
&self,
format: &Format,
config: &SupportedStreamConfig,
data_callback: D,
error_callback: E,
) -> Result<Self::Stream, BuildStreamError>
@ -125,7 +125,7 @@ impl DeviceTrait for Device {
D: FnMut(&mut Data) + Send + 'static,
E: FnMut(StreamError) + Send + 'static,
{
Device::build_output_stream_raw(self, format, data_callback, error_callback)
Device::build_output_stream_raw(self, config, data_callback, error_callback)
}
}
@ -165,11 +165,11 @@ impl Device {
Ok(c_str.to_string_lossy().into_owned())
}
// Logic re-used between `supported_input_formats` and `supported_output_formats`.
fn supported_formats(
// Logic re-used between `supported_input_configs` and `supported_output_configs`.
fn supported_configs(
&self,
scope: AudioObjectPropertyScope,
) -> Result<SupportedOutputFormats, SupportedFormatsError> {
) -> Result<SupportedOutputConfigs, SupportedStreamConfigsError> {
let mut property_address = AudioObjectPropertyAddress {
mSelector: kAudioDevicePropertyStreamConfiguration,
mScope: scope,
@ -255,11 +255,11 @@ impl Device {
// Collect the supported formats for the device.
let mut fmts = vec![];
for range in ranges {
let fmt = SupportedFormat {
let fmt = SupportedStreamConfigRange {
channels: n_channels as ChannelCount,
min_sample_rate: SampleRate(range.mMinimum as _),
max_sample_rate: SampleRate(range.mMaximum as _),
data_type: sample_format,
sample_format: sample_format,
};
fmts.push(fmt);
}
@ -268,19 +268,25 @@ impl Device {
}
}
fn supported_input_formats(&self) -> Result<SupportedOutputFormats, SupportedFormatsError> {
self.supported_formats(kAudioObjectPropertyScopeInput)
fn supported_input_configs(
&self,
) -> Result<SupportedOutputConfigs, SupportedStreamConfigsError> {
self.supported_configs(kAudioObjectPropertyScopeInput)
}
fn supported_output_formats(&self) -> Result<SupportedOutputFormats, SupportedFormatsError> {
self.supported_formats(kAudioObjectPropertyScopeOutput)
fn supported_output_configs(
&self,
) -> Result<SupportedOutputConfigs, SupportedStreamConfigsError> {
self.supported_configs(kAudioObjectPropertyScopeOutput)
}
fn default_format(
fn default_config(
&self,
scope: AudioObjectPropertyScope,
) -> Result<Format, DefaultFormatError> {
fn default_format_error_from_os_status(status: OSStatus) -> Result<(), DefaultFormatError> {
) -> Result<SupportedStreamConfig, DefaultStreamConfigError> {
fn default_config_error_from_os_status(
status: OSStatus,
) -> Result<(), DefaultStreamConfigError> {
let err = match coreaudio::Error::from_os_status(status) {
Err(err) => err,
Ok(_) => return Ok(()),
@ -291,10 +297,10 @@ impl Device {
)
| coreaudio::Error::AudioCodec(_)
| coreaudio::Error::AudioFormat(_) => {
Err(DefaultFormatError::StreamTypeNotSupported)
Err(DefaultStreamConfigError::StreamTypeNotSupported)
}
coreaudio::Error::AudioUnit(coreaudio::error::AudioUnitError::NoConnection) => {
Err(DefaultFormatError::DeviceNotAvailable)
Err(DefaultStreamConfigError::DeviceNotAvailable)
}
err => {
let description = format!("{}", std::error::Error::description(&err));
@ -321,7 +327,7 @@ impl Device {
&data_size as *const _ as *mut _,
&asbd as *const _ as *mut _,
);
default_format_error_from_os_status(status)?;
default_config_error_from_os_status(status)?;
let sample_format = {
let audio_format = coreaudio::audio_unit::AudioFormat::from_format_and_flag(
@ -330,7 +336,7 @@ impl Device {
);
let flags = match audio_format {
Some(coreaudio::audio_unit::AudioFormat::LinearPCM(flags)) => flags,
_ => return Err(DefaultFormatError::StreamTypeNotSupported),
_ => return Err(DefaultStreamConfigError::StreamTypeNotSupported),
};
let maybe_sample_format =
coreaudio::audio_unit::SampleFormat::from_flags_and_bytes_per_frame(
@ -340,25 +346,25 @@ impl Device {
match maybe_sample_format {
Some(coreaudio::audio_unit::SampleFormat::F32) => SampleFormat::F32,
Some(coreaudio::audio_unit::SampleFormat::I16) => SampleFormat::I16,
_ => return Err(DefaultFormatError::StreamTypeNotSupported),
_ => return Err(DefaultStreamConfigError::StreamTypeNotSupported),
}
};
let format = Format {
let config = SupportedStreamConfig {
sample_rate: SampleRate(asbd.mSampleRate as _),
channels: asbd.mChannelsPerFrame as _,
data_type: sample_format,
sample_format: sample_format,
};
Ok(format)
Ok(config)
}
}
fn default_input_format(&self) -> Result<Format, DefaultFormatError> {
self.default_format(kAudioObjectPropertyScopeInput)
fn default_input_config(&self) -> Result<SupportedStreamConfig, DefaultStreamConfigError> {
self.default_config(kAudioObjectPropertyScopeInput)
}
fn default_output_format(&self) -> Result<Format, DefaultFormatError> {
self.default_format(kAudioObjectPropertyScopeOutput)
fn default_output_config(&self) -> Result<SupportedStreamConfig, DefaultStreamConfigError> {
self.default_config(kAudioObjectPropertyScopeOutput)
}
}
@ -396,15 +402,15 @@ impl From<coreaudio::Error> for BuildStreamError {
}
// Create a coreaudio AudioStreamBasicDescription from a CPAL Format.
fn asbd_from_format(format: &Format) -> AudioStreamBasicDescription {
let n_channels = format.channels as usize;
let sample_rate = format.sample_rate.0;
let bytes_per_channel = format.data_type.sample_size();
fn asbd_from_config(config: &SupportedStreamConfig) -> AudioStreamBasicDescription {
let n_channels = config.channels as usize;
let sample_rate = config.sample_rate.0;
let bytes_per_channel = config.sample_format.sample_size();
let bits_per_channel = bytes_per_channel * 8;
let bytes_per_frame = n_channels * bytes_per_channel;
let frames_per_packet = 1;
let bytes_per_packet = frames_per_packet * bytes_per_frame;
let sample_format = format.data_type;
let sample_format = config.sample_format;
let format_flags = match sample_format {
SampleFormat::F32 => (kAudioFormatFlagIsFloat | kAudioFormatFlagIsPacked) as u32,
_ => kAudioFormatFlagIsPacked as u32,
@ -469,7 +475,7 @@ fn audio_unit_from_device(device: &Device, input: bool) -> Result<AudioUnit, cor
impl Device {
fn build_input_stream_raw<D, E>(
&self,
format: &Format,
config: &SupportedStreamConfig,
mut data_callback: D,
_error_callback: E,
) -> Result<Stream, BuildStreamError>
@ -502,7 +508,7 @@ impl Device {
coreaudio::Error::from_os_status(status)?;
// If the requested sample rate is different to the device sample rate, update the device.
if sample_rate as u32 != format.sample_rate.0 {
if sample_rate as u32 != config.sample_rate.0 {
// Get available sample rate ranges.
property_address.mSelector = kAudioDevicePropertyAvailableNominalSampleRates;
let data_size = 0u32;
@ -530,7 +536,7 @@ impl Device {
let ranges: &'static [AudioValueRange] = slice::from_raw_parts(ranges, n_ranges);
// Now that we have the available ranges, pick the one matching the desired rate.
let sample_rate = format.sample_rate.0;
let sample_rate = config.sample_rate.0;
let maybe_index = ranges.iter().position(|r| {
r.mMinimum as u32 == sample_rate && r.mMaximum as u32 == sample_rate
});
@ -619,12 +625,12 @@ impl Device {
let mut audio_unit = audio_unit_from_device(self, true)?;
// Set the stream in interleaved mode.
let asbd = asbd_from_format(format);
let asbd = asbd_from_config(config);
audio_unit.set_property(kAudioUnitProperty_StreamFormat, scope, element, Some(&asbd))?;
// Register the callback that is being called by coreaudio whenever it needs data to be
// fed to the audio buffer.
let sample_format = format.data_type;
let sample_format = config.sample_format;
let bytes_per_channel = sample_format.sample_size();
type Args = render_callback::Args<data::Raw>;
audio_unit.set_input_callback(move |args: Args| unsafe {
@ -657,7 +663,7 @@ impl Device {
fn build_output_stream_raw<D, E>(
&self,
format: &Format,
config: &SupportedStreamConfig,
mut data_callback: D,
_error_callback: E,
) -> Result<Stream, BuildStreamError>
@ -672,12 +678,12 @@ impl Device {
let element = Element::Output;
// Set the stream in interleaved mode.
let asbd = asbd_from_format(format);
let asbd = asbd_from_config(config);
audio_unit.set_property(kAudioUnitProperty_StreamFormat, scope, element, Some(&asbd))?;
// Register the callback that is being called by coreaudio whenever it needs data to be
// fed to the audio buffer.
let sample_format = format.data_type;
let sample_format = config.sample_format;
let bytes_per_channel = sample_format.sample_size();
type Args = render_callback::Args<data::Raw>;
audio_unit.set_render_callback(move |args: Args| unsafe {