mirror of
https://github.com/mpv-player/mpv
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f3e9b94622
Due to the COM Single-Threaded Apartment model, the thread owning the objects will still do all the actual method calls (in the form of message dispatches), but at least this will be COM's problem rather than having to set up several handles and adding extra code to the event thread. Since the event thread still needs to own the WASAPI handles to avoid waiting on another thread to dispatch the messages, the init and uninit code still has to run in the thread. This also removes a broken drain implementation and removes unused headers from each of the files split from the original ao_wasapi.c.
95 lines
3.2 KiB
C
Executable File
95 lines
3.2 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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#define COBJMACROS 1
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#define _WIN32_WINNT 0x600
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#include <audioclient.h>
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#include <mmdeviceapi.h>
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#include <avrt.h>
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typedef struct wasapi_state {
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struct mp_log *log;
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HANDLE threadLoop;
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/* Init phase */
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int init_ret;
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HANDLE init_done;
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int share_mode;
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HANDLE hUninit;
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/* volume control */
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DWORD vol_hw_support, status;
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float audio_volume;
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/* Buffers */
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size_t buffer_block_size; /* Size of each block in bytes */
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REFERENCE_TIME
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minRequestedDuration; /* minimum wasapi buffer block size, in 100-nanosecond units */
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REFERENCE_TIME
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defaultRequestedDuration; /* default wasapi default block size, in 100-nanosecond units */
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UINT32 bufferFrameCount; /* wasapi buffer block size, number of frames, frame size at format.nBlockAlign */
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/* WASAPI handles, owned by other thread */
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IMMDevice *pDevice;
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IAudioClient *pAudioClient;
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IAudioRenderClient *pRenderClient;
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IAudioEndpointVolume *pEndpointVolume;
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HANDLE hFeed; /* wasapi event */
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HANDLE hForceFeed; /* forces writing a buffer (e.g. before audio_resume) */
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HANDLE hFeedDone; /* set only after a hForceFeed */
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HANDLE hTask; /* AV thread */
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DWORD taskIndex; /* AV task ID */
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WAVEFORMATEXTENSIBLE format;
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/* WASAPI proxy handles, for Single-Threaded Apartment communication.
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One is needed for each object that's accessed by a different thread. */
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IAudioClient *pAudioClientProxy;
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IAudioEndpointVolume *pEndpointVolumeProxy;
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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 *sAudioClient;
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IStream *sEndpointVolume;
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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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UINT64 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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int opt_exclusive;
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int opt_list;
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char *opt_device;
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/* We still need to support XP, don't use these functions directly, blob owned by 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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} wasapi_state;
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#endif
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