mirror of
https://github.com/mpv-player/mpv
synced 2024-12-21 22:30:22 +00:00
123 lines
4.0 KiB
C
Executable File
123 lines
4.0 KiB
C
Executable File
/*
|
|
* This file is part of mpv.
|
|
*
|
|
* Original author: Jonathan Yong <10walls@gmail.com>
|
|
*
|
|
* mpv is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* mpv is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with mpv. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef MP_AO_WASAPI_H_
|
|
#define MP_AO_WASAPI_H_
|
|
|
|
#define COBJMACROS 1
|
|
#define _WIN32_WINNT 0x600
|
|
|
|
#include <audioclient.h>
|
|
#include <audiopolicy.h>
|
|
#include <mmdeviceapi.h>
|
|
#include <avrt.h>
|
|
|
|
#include "osdep/atomics.h"
|
|
|
|
typedef struct change_notify {
|
|
IMMNotificationClient client; /* this must be first in the structure! */
|
|
LPWSTR monitored; /* Monitored device */
|
|
struct ao *ao;
|
|
} change_notify;
|
|
|
|
HRESULT wasapi_change_init(struct ao* ao);
|
|
void wasapi_change_uninit(struct ao* ao);
|
|
|
|
#define EXIT_ON_ERROR(hres) \
|
|
do { if (FAILED(hres)) { goto exit_label; } } while(0)
|
|
#define SAFE_RELEASE(unk, release) \
|
|
do { if ((unk) != NULL) { release; (unk) = NULL; } } while(0)
|
|
|
|
typedef struct wasapi_state {
|
|
struct mp_log *log;
|
|
HANDLE threadLoop;
|
|
|
|
/* Init phase */
|
|
HRESULT init_ret;
|
|
HANDLE init_done;
|
|
int share_mode;
|
|
|
|
HANDLE hUninit;
|
|
|
|
/* volume control */
|
|
DWORD vol_hw_support, status;
|
|
float audio_volume;
|
|
float previous_volume;
|
|
float initial_volume;
|
|
|
|
/* Buffers */
|
|
size_t buffer_block_size; /* Size of each block in bytes */
|
|
UINT32 bufferFrameCount; /* wasapi buffer block size, number of frames, frame size at format.nBlockAlign */
|
|
|
|
/* WASAPI handles, owned by other thread */
|
|
IMMDevice *pDevice;
|
|
IAudioClient *pAudioClient;
|
|
IAudioRenderClient *pRenderClient;
|
|
ISimpleAudioVolume *pAudioVolume;
|
|
IAudioEndpointVolume *pEndpointVolume;
|
|
IAudioSessionControl *pSessionControl;
|
|
IMMDeviceEnumerator *pEnumerator;
|
|
|
|
HANDLE hFeed; /* wasapi event */
|
|
HANDLE hForceFeed; /* forces writing a buffer (e.g. before audio_resume) */
|
|
HANDLE hFeedDone; /* set only after a hForceFeed */
|
|
HANDLE hTask; /* AV thread */
|
|
DWORD taskIndex; /* AV task ID */
|
|
WAVEFORMATEXTENSIBLE format;
|
|
|
|
/* WASAPI proxy handles, for Single-Threaded Apartment communication.
|
|
One is needed for each object that's accessed by a different thread. */
|
|
IAudioClient *pAudioClientProxy;
|
|
ISimpleAudioVolume *pAudioVolumeProxy;
|
|
IAudioEndpointVolume *pEndpointVolumeProxy;
|
|
IAudioSessionControl *pSessionControlProxy;
|
|
|
|
/* Streams used to marshal the proxy objects. The thread owning the actual objects
|
|
needs to marshal proxy objects into these streams, and the thread that wants the
|
|
proxies unmarshals them from here. */
|
|
IStream *sAudioClient;
|
|
IStream *sAudioVolume;
|
|
IStream *sEndpointVolume;
|
|
IStream *sSessionControl;
|
|
|
|
/* WASAPI internal clock information, for estimating delay */
|
|
IAudioClock *pAudioClock;
|
|
UINT64 clock_frequency; /* scale for the "samples" returned by the clock */
|
|
atomic_ullong sample_count; /* the amount of samples per channel written to a GetBuffer buffer */
|
|
LARGE_INTEGER qpc_frequency; /* frequency of windows' high resolution timer */
|
|
|
|
int opt_exclusive;
|
|
int opt_list;
|
|
char *opt_device;
|
|
|
|
/* Don't use these functions directly in case
|
|
they are unimplemented for some reason.
|
|
(XP shouldn't be an issue since it doesn't support wasapi, maybe wine?)
|
|
Blob is owned by the main thread */
|
|
struct {
|
|
HMODULE hAvrt;
|
|
HANDLE (WINAPI *pAvSetMmThreadCharacteristicsW)(LPCWSTR, LPDWORD);
|
|
WINBOOL (WINAPI *pAvRevertMmThreadCharacteristics)(HANDLE);
|
|
} VistaBlob;
|
|
|
|
change_notify change;
|
|
} wasapi_state;
|
|
|
|
#endif
|