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WASAPI: detect raw devices

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This commit is contained in:
Andrew Kelley 2015-08-12 19:26:07 -07:00
parent ba65bdb131
commit 709fc5fa19
3 changed files with 104 additions and 41 deletions
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3
README.md
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@ -252,6 +252,9 @@ view `coverage/index.html` in a browser.
0. implement WASAPI (Windows) backend, get examples working
- list devices
- raw mode
- channel layout
- period duration
- formats
- watching
- sine wave
- microphone

7
src/coreaudio.cpp
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@ -1,3 +1,10 @@
/*
* Copyright (c) 2015 Andrew Kelley
*
* This file is part of libsoundio, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#include "coreaudio.hpp"
#include "soundio.hpp"

135
src/wasapi.cpp
View file

@ -1,3 +1,10 @@
/*
* Copyright (c) 2015 Andrew Kelley
*
* This file is part of libsoundio, which is MIT licensed.
* See http://opensource.org/licenses/MIT
*/
#include "wasapi.hpp"
#include "soundio.hpp"
@ -32,7 +39,7 @@ static int from_lpwstr(LPWSTR lpwstr, char **out_str, int *out_str_len) {
if (buf_size == 0)
return SoundIoErrorEncodingString;
char *buf = allocate<char>(buf_size + 1);
char *buf = allocate<char>(buf_size);
if (!buf)
return SoundIoErrorNoMem;
@ -42,7 +49,7 @@ static int from_lpwstr(LPWSTR lpwstr, char **out_str, int *out_str_len) {
}
*out_str = buf;
*out_str_len = buf_size;
*out_str_len = buf_size - 1;
return 0;
}
@ -141,7 +148,8 @@ struct RefreshDevices {
WAVEFORMATEXTENSIBLE *wave_format;
bool prop_variant_value_inited;
SoundIoDevicesInfo *devices_info;
SoundIoDevice *device;
SoundIoDevice *device_shared;
SoundIoDevice *device_raw;
char *default_render_id;
int default_render_id_len;
char *default_capture_id;
@ -150,7 +158,8 @@ struct RefreshDevices {
static void deinit_refresh_devices(RefreshDevices *rd) {
soundio_destroy_devices_info(rd->devices_info);
soundio_device_unref(rd->device);
soundio_device_unref(rd->device_shared);
soundio_device_unref(rd->device_raw);
if (rd->mm_device)
IMMDevice_Release(rd->mm_device);
if (rd->default_render_device)
@ -263,42 +272,67 @@ static int refresh_devices(SoundIoPrivate *si) {
SoundIoDevicePrivate *dev = allocate<SoundIoDevicePrivate>(1);
if (!dev) {
SoundIoDevicePrivate *dev_shared = allocate<SoundIoDevicePrivate>(1);
if (!dev_shared) {
deinit_refresh_devices(&rd);
return SoundIoErrorNoMem;
}
SoundIoDeviceWasapi *dw = &dev->backend_data.wasapi;
dev->destruct = destruct_device;
assert(!rd.device);
rd.device = &dev->pub;
rd.device->ref_count = 1;
rd.device->soundio = soundio;
rd.device->is_raw = false; // TODO
SoundIoDeviceWasapi *dev_w_shared = &dev_shared->backend_data.wasapi;
dev_shared->destruct = destruct_device;
assert(!rd.device_shared);
rd.device_shared = &dev_shared->pub;
rd.device_shared->ref_count = 1;
rd.device_shared->soundio = soundio;
rd.device_shared->is_raw = false;
SoundIoDevicePrivate *dev_raw = allocate<SoundIoDevicePrivate>(1);
if (!dev_raw) {
deinit_refresh_devices(&rd);
return SoundIoErrorNoMem;
}
SoundIoDeviceWasapi *dev_w_raw = &dev_raw->backend_data.wasapi;
dev_raw->destruct = destruct_device;
assert(!rd.device_raw);
rd.device_raw = &dev_raw->pub;
rd.device_raw->ref_count = 1;
rd.device_raw->soundio = soundio;
rd.device_raw->is_raw = true;
int device_id_len;
if ((err = from_lpwstr(rd.lpwstr, &rd.device->id, &device_id_len))) {
if ((err = from_lpwstr(rd.lpwstr, &rd.device_shared->id, &device_id_len))) {
deinit_refresh_devices(&rd);
return err;
}
rd.device_raw->id = soundio_str_dupe(rd.device_shared->id, device_id_len);
if (!rd.device_raw->id) {
deinit_refresh_devices(&rd);
return SoundIoErrorNoMem;
}
if (FAILED(hr = IMMDevice_Activate(rd.mm_device, IID_IAudioClient,
CLSCTX_ALL, nullptr, (void**)&dw->audio_client)))
CLSCTX_ALL, nullptr, (void**)&dev_w_shared->audio_client)))
{
deinit_refresh_devices(&rd);
return SoundIoErrorOpeningDevice;
}
if (FAILED(hr = IAudioClient_AddRef(dev_w_shared->audio_client))) {
deinit_refresh_devices(&rd);
return SoundIoErrorOpeningDevice;
}
dev_w_raw->audio_client = dev_w_shared->audio_client;
REFERENCE_TIME default_device_period;
REFERENCE_TIME min_device_period;
if (FAILED(hr = IAudioClient_GetDevicePeriod(dw->audio_client,
if (FAILED(hr = IAudioClient_GetDevicePeriod(dev_w_shared->audio_client,
&default_device_period, &min_device_period)))
{
deinit_refresh_devices(&rd);
return SoundIoErrorOpeningDevice;
}
rd.device->period_duration_current = from_reference_time(default_device_period);
rd.device->period_duration_min = from_reference_time(min_device_period);
rd.device_shared->period_duration_current = from_reference_time(default_device_period);
rd.device_shared->period_duration_min = from_reference_time(min_device_period);
if (rd.endpoint)
@ -314,7 +348,8 @@ static int refresh_devices(SoundIoPrivate *si) {
return SoundIoErrorOpeningDevice;
}
rd.device->aim = data_flow_to_aim(data_flow);
rd.device_shared->aim = data_flow_to_aim(data_flow);
rd.device_raw->aim = rd.device_shared->aim;
if (rd.prop_store)
IPropertyStore_Release(rd.prop_store);
@ -338,14 +373,20 @@ static int refresh_devices(SoundIoPrivate *si) {
return SoundIoErrorOpeningDevice;
}
int device_name_len;
if ((err = from_lpwstr(rd.prop_variant_value.pwszVal, &rd.device->name, &device_name_len))) {
if ((err = from_lpwstr(rd.prop_variant_value.pwszVal, &rd.device_shared->name, &device_name_len))) {
deinit_refresh_devices(&rd);
return SoundIoErrorOpeningDevice;
}
rd.device_raw->name = soundio_str_dupe(rd.device_shared->name, device_name_len);
if (!rd.device_raw->name) {
deinit_refresh_devices(&rd);
return SoundIoErrorNoMem;
}
if (rd.wave_format)
CoTaskMemFree(rd.wave_format);
if (FAILED(hr = IAudioClient_GetMixFormat(dw->audio_client, (WAVEFORMATEX**)&rd.wave_format))) {
if (FAILED(hr = IAudioClient_GetMixFormat(dev_w_shared->audio_client, (WAVEFORMATEX**)&rd.wave_format))) {
deinit_refresh_devices(&rd);
return SoundIoErrorOpeningDevice;
}
@ -353,49 +394,61 @@ static int refresh_devices(SoundIoPrivate *si) {
deinit_refresh_devices(&rd);
return SoundIoErrorOpeningDevice;
}
rd.device->sample_rate_current = rd.wave_format->Format.nSamplesPerSec;
rd.device_shared->sample_rate_current = rd.wave_format->Format.nSamplesPerSec;
// WASAPI performs resampling in shared mode, so any value is valid.
// Let's pick some reasonable min and max values.
rd.device->sample_rate_count = 1;
rd.device->sample_rates = &dev->prealloc_sample_rate_range;
rd.device->sample_rates[0].min = min(SOUNDIO_MIN_SAMPLE_RATE, rd.device->sample_rate_current);
rd.device->sample_rates[0].max = max(SOUNDIO_MAX_SAMPLE_RATE, rd.device->sample_rate_current);
rd.device_shared->sample_rate_count = 1;
rd.device_shared->sample_rates = &dev_shared->prealloc_sample_rate_range;
rd.device_shared->sample_rates[0].min = min(SOUNDIO_MIN_SAMPLE_RATE, rd.device_shared->sample_rate_current);
rd.device_shared->sample_rates[0].max = max(SOUNDIO_MAX_SAMPLE_RATE, rd.device_shared->sample_rate_current);
rd.device->current_format = from_wave_format_format(rd.wave_format);
rd.device->format_count = 1;
rd.device->formats = &dev->prealloc_format;
rd.device->formats[0] = rd.device->current_format;
rd.device_shared->current_format = from_wave_format_format(rd.wave_format);
rd.device_shared->format_count = 1;
rd.device_shared->formats = &dev_shared->prealloc_format;
rd.device_shared->formats[0] = rd.device_shared->current_format;
from_wave_format_layout(rd.wave_format, &rd.device->current_layout);
rd.device->layout_count = 1;
rd.device->layouts = allocate<SoundIoChannelLayout>(1);
from_wave_format_layout(rd.wave_format, &rd.device_shared->current_layout);
rd.device_shared->layout_count = 1;
rd.device_shared->layouts = allocate<SoundIoChannelLayout>(1);
if (!rd.device->layouts) {
if (!rd.device_shared->layouts) {
deinit_refresh_devices(&rd);
return SoundIoErrorNoMem;
}
rd.device->layouts[0] = rd.device->current_layout;
rd.device_shared->layouts[0] = rd.device_shared->current_layout;
SoundIoList<SoundIoDevice *> *device_list;
if (rd.device->aim == SoundIoDeviceAimOutput) {
if (rd.device_shared->aim == SoundIoDeviceAimOutput) {
device_list = &rd.devices_info->output_devices;
if (soundio_streql(rd.device->id, device_id_len, rd.default_render_id, rd.default_render_id_len))
if (soundio_streql(rd.device_shared->id, device_id_len,
rd.default_render_id, rd.default_render_id_len))
{
rd.devices_info->default_output_index = device_list->length;
}
} else {
assert(rd.device->aim == SoundIoDeviceAimInput);
assert(rd.device_shared->aim == SoundIoDeviceAimInput);
device_list = &rd.devices_info->input_devices;
if (soundio_streql(rd.device->id, device_id_len, rd.default_capture_id, rd.default_capture_id_len))
if (soundio_streql(rd.device_shared->id, device_id_len,
rd.default_capture_id, rd.default_capture_id_len))
{
rd.devices_info->default_input_index = device_list->length;
}
}
if ((err = device_list->append(rd.device))) {
if ((err = device_list->append(rd.device_shared))) {
deinit_refresh_devices(&rd);
return err;
}
rd.device = nullptr;
rd.device_shared = nullptr;
if ((err = device_list->append(rd.device_raw))) {
deinit_refresh_devices(&rd);
return err;
}
rd.device_raw = nullptr;
}
soundio_os_mutex_lock(siw->mutex);