mirror of
https://github.com/mpv-player/mpv
synced 2024-12-24 15:52:25 +00:00
642f84f922
Unfortunately, because we have proxy objects (pAudioVolumeProxy, pEndpointVolumeProxy, pSessionControlProxy) it looks like we still have to use MsgWaitForMultipleObjects and watch for and dispatch pending messages: https://msdn.microsoft.com/en-us/library/windows/desktop/ms680112%28v=vs.85%29.aspx
127 lines
4.1 KiB
C
Executable File
127 lines
4.1 KiB
C
Executable File
/*
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* This file is part of mpv.
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*
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* Original author: Jonathan Yong <10walls@gmail.com>
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MP_AO_WASAPI_H_
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#define MP_AO_WASAPI_H_
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#include <stdbool.h>
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#include <audioclient.h>
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#include <audiopolicy.h>
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#include <mmdeviceapi.h>
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#include <avrt.h>
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#include "osdep/atomics.h"
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typedef struct change_notify {
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IMMNotificationClient client; /* this must be first in the structure! */
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LPWSTR monitored; /* Monitored device */
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bool is_hotplug;
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struct ao *ao;
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} change_notify;
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HRESULT wasapi_change_init(struct ao* ao, bool is_hotplug);
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void wasapi_change_uninit(struct ao* ao);
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#define EXIT_ON_ERROR(hres) \
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do { if (FAILED(hres)) { goto exit_label; } } while(0)
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#define SAFE_RELEASE(unk, release) \
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do { if ((unk) != NULL) { release; (unk) = NULL; } } while(0)
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enum wasapi_thread_state {
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WASAPI_THREAD_FEED = 0,
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WASAPI_THREAD_RESUME,
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WASAPI_THREAD_RESET,
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WASAPI_THREAD_SHUTDOWN
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};
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typedef struct wasapi_state {
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struct mp_log *log;
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/* Init phase */
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HRESULT init_ret;
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HANDLE hInitDone;
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int share_mode;
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/* volume control */
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DWORD vol_hw_support;
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float audio_volume;
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float previous_volume;
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float initial_volume;
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/* WASAPI handles, owned by audio thread */
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IMMDevice *pDevice;
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IAudioClient *pAudioClient;
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IAudioRenderClient *pRenderClient;
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ISimpleAudioVolume *pAudioVolume;
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IAudioEndpointVolume *pEndpointVolume;
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IAudioSessionControl *pSessionControl;
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IMMDeviceEnumerator *pEnumerator;
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/* thread handles */
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HANDLE hAudioThread; /* the thread itself */
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HANDLE hWake; /* thread wakeup event */
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atomic_int thread_state; /* enum wasapi_thread_state */
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/* for setting the audio thread priority */
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HANDLE hTask; /* AV thread */
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DWORD taskIndex; /* AV task ID */
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/* WASAPI proxy handles, for Single-Threaded Apartment communication.
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One is needed for each audio thread object that's accessed from the main thread. */
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ISimpleAudioVolume *pAudioVolumeProxy;
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IAudioEndpointVolume *pEndpointVolumeProxy;
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IAudioSessionControl *pSessionControlProxy;
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/* Streams used to marshal the proxy objects. The thread owning the actual objects
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needs to marshal proxy objects into these streams, and the thread that wants the
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proxies unmarshals them from here. */
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IStream *sAudioVolume;
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IStream *sEndpointVolume;
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IStream *sSessionControl;
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/* WASAPI internal clock information, for estimating delay */
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IAudioClock *pAudioClock;
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UINT64 clock_frequency; /* scale for the "samples" returned by the clock */
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atomic_ullong sample_count; /* the amount of samples per channel written to a GetBuffer buffer */
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LARGE_INTEGER qpc_frequency; /* frequency of windows' high resolution timer */
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/* ao options */
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int opt_exclusive;
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int opt_list;
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char *opt_device;
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/* format info */
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WAVEFORMATEXTENSIBLE format;
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size_t buffer_block_size; /* Size of each block in bytes */
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UINT32 bufferFrameCount; /* wasapi buffer block size, number of frames, frame size at format.nBlockAlign */
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/* Don't use these functions directly in case
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they are unimplemented for some reason.
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(XP shouldn't be an issue since it doesn't support wasapi, maybe wine?)
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Blob is owned by the main thread */
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struct {
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HMODULE hAvrt;
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HANDLE (WINAPI *pAvSetMmThreadCharacteristicsW)(LPCWSTR, LPDWORD);
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WINBOOL (WINAPI *pAvRevertMmThreadCharacteristics)(HANDLE);
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} VistaBlob;
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change_notify change;
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} wasapi_state;
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#endif
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