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https://github.com/Ryujinx/libsoundio.git
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a24148e15f
* Hardcodes wasapi GUIDs when compiling as C * Uses the user requested buffer size on wasapi Windows appears to automatically adjust the timer period when you use a small buffer, meaning that using a fraction of a large buffer is unreliable unless you call timeBeginPeriod. Seems simpler to just request the desired size directly. I'll do some further investigations into this, if it seems like the right change to make I'll update the docs as well if needed. * Switches to event driven callbacks on wasapi * Removes some commented out code, moves class variable to local
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/*
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* Copyright (c) 2015 Andrew Kelley
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*
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* This file is part of libsoundio, which is MIT licensed.
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* See http://opensource.org/licenses/MIT
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*/
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#ifndef SOUNDIO_WASAPI_H
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#define SOUNDIO_WASAPI_H
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#include "soundio_internal.h"
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#include "os.h"
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#include "list.h"
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#include "atomics.h"
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#define CINTERFACE
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#define COBJMACROS
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#include <mmdeviceapi.h>
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#include <audioclient.h>
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#include <audiosessiontypes.h>
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#include <audiopolicy.h>
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#ifndef AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM
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#define AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM 0x80000000
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#endif
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#ifndef AUDCLNT_STREAMFLAGS_SRC_DEFAULT_QUALITY
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#define AUDCLNT_STREAMFLAGS_SRC_DEFAULT_QUALITY 0x08000000
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#endif
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struct SoundIoPrivate;
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int soundio_wasapi_init(struct SoundIoPrivate *si);
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struct SoundIoDeviceWasapi {
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double period_duration;
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IMMDevice *mm_device;
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};
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struct SoundIoWasapi {
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struct SoundIoOsMutex *mutex;
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struct SoundIoOsCond *cond;
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struct SoundIoOsCond *scan_devices_cond;
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struct SoundIoOsMutex *scan_devices_mutex;
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struct SoundIoOsThread *thread;
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bool abort_flag;
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// this one is ready to be read with flush_events. protected by mutex
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struct SoundIoDevicesInfo *ready_devices_info;
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bool have_devices_flag;
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bool device_scan_queued;
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int shutdown_err;
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bool emitted_shutdown_cb;
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IMMDeviceEnumerator* device_enumerator;
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IMMNotificationClient device_events;
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LONG device_events_refs;
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};
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struct SoundIoOutStreamWasapi {
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IAudioClient *audio_client;
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IAudioClockAdjustment *audio_clock_adjustment;
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IAudioRenderClient *audio_render_client;
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IAudioSessionControl *audio_session_control;
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ISimpleAudioVolume *audio_volume_control;
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LPWSTR stream_name;
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bool need_resample;
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struct SoundIoOsThread *thread;
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struct SoundIoOsMutex *mutex;
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struct SoundIoOsCond *cond;
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struct SoundIoOsCond *start_cond;
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struct SoundIoAtomicFlag thread_exit_flag;
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bool is_raw;
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UINT32 buffer_frame_count;
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int write_frame_count;
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HANDLE h_event;
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struct SoundIoAtomicBool desired_pause_state;
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struct SoundIoAtomicFlag pause_resume_flag;
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struct SoundIoAtomicFlag clear_buffer_flag;
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bool is_paused;
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bool open_complete;
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int open_err;
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bool started;
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UINT32 min_padding_frames;
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float volume;
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struct SoundIoChannelArea areas[SOUNDIO_MAX_CHANNELS];
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};
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struct SoundIoInStreamWasapi {
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IAudioClient *audio_client;
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IAudioCaptureClient *audio_capture_client;
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IAudioSessionControl *audio_session_control;
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LPWSTR stream_name;
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struct SoundIoOsThread *thread;
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struct SoundIoOsMutex *mutex;
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struct SoundIoOsCond *cond;
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struct SoundIoOsCond *start_cond;
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struct SoundIoAtomicFlag thread_exit_flag;
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bool is_raw;
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int readable_frame_count;
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UINT32 buffer_frame_count;
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int read_frame_count;
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HANDLE h_event;
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bool is_paused;
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bool open_complete;
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int open_err;
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bool started;
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char *read_buf;
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int read_buf_frames_left;
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int opened_buf_frames;
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struct SoundIoChannelArea areas[SOUNDIO_MAX_CHANNELS];
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};
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#endif
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