Initial commit of mpg123-1.29.3
This commit is contained in:
Sam Lantinga
614
src/libout123/modules/win32_wasapi.c
Normal file
614
src/libout123/modules/win32_wasapi.c
Normal file
@@ -0,0 +1,614 @@
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/*
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win32_wasapi: audio output for Windows wasapi exclusive mode audio
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copyright ?-2013 by the mpg123 project - free software under the terms of the LGPL 2.1
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see COPYING and AUTHORS files in distribution or http://mpg123.org
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based on win32.c
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*/
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#define _WIN32_WINNT 0x601
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#define COBJMACROS 1
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#include "out123_int.h"
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#include <inttypes.h>
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#include <initguid.h>
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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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#include <functiondiscoverykeys_devpkey.h>
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#include "debug.h"
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#ifdef _MSC_VER
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/* When compiling C code with MSVC it is only possible to declare, but not
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define the WASAPI interface GUIDs using MS headers. So we define them
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ourselves. */
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#ifndef GUID_SECT
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#define GUID_SECT
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#endif
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#define __DEFINE_GUID(n,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) static const GUID n GUID_SECT = {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}}
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#define __DEFINE_IID(n,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) static const IID n GUID_SECT = {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}}
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#define __DEFINE_CLSID(n,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) static const CLSID n GUID_SECT = {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}}
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#define __DEFINE_PROPERTYKEY(n,l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8,pid) static const PROPERTYKEY n GUID_SECT = {{l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}},pid}
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#define MPG123_DEFINE_CLSID(className, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
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__DEFINE_CLSID(mpg123_CLSID_##className, 0x##l, 0x##w1, 0x##w2, 0x##b1, 0x##b2, 0x##b3, 0x##b4, 0x##b5, 0x##b6, 0x##b7, 0x##b8)
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#define MPG123_DEFINE_IID(interfaceName, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
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__DEFINE_IID(mpg123_IID_##interfaceName, 0x##l, 0x##w1, 0x##w2, 0x##b1, 0x##b2, 0x##b3, 0x##b4, 0x##b5, 0x##b6, 0x##b7, 0x##b8)
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#define MPG123_DEFINE_PROPERTYKEY(interfaceName, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8, pid) \
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__DEFINE_PROPERTYKEY(mpg123_PKEY_##interfaceName, 0x##l, 0x##w1, 0x##w2, 0x##b1, 0x##b2, 0x##b3, 0x##b4, 0x##b5, 0x##b6, 0x##b7, 0x##b8, pid)
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// "1CB9AD4C-DBFA-4c32-B178-C2F568A703B2"
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MPG123_DEFINE_IID(IAudioClient, 1cb9ad4c, dbfa, 4c32, b1, 78, c2, f5, 68, a7, 03, b2);
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// "A95664D2-9614-4F35-A746-DE8DB63617E6"
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MPG123_DEFINE_IID(IMMDeviceEnumerator, a95664d2, 9614, 4f35, a7, 46, de, 8d, b6, 36, 17, e6);
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// "BCDE0395-E52F-467C-8E3D-C4579291692E"
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MPG123_DEFINE_CLSID(IMMDeviceEnumerator, bcde0395, e52f, 467c, 8e, 3d, c4, 57, 92, 91, 69, 2e);
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// "F294ACFC-3146-4483-A7BF-ADDCA7C260E2"
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MPG123_DEFINE_IID(IAudioRenderClient, f294acfc, 3146, 4483, a7, bf, ad, dc, a7, c2, 60, e2);
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MPG123_DEFINE_PROPERTYKEY(Device_FriendlyName, a45c254e, df1c, 4efd, 80, 20, 67, d1, 46, a8, 50, e0, 14);
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#else
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#define mpg123_IID_IAudioClient IID_IAudioClient
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#define mpg123_IID_IMMDeviceEnumerator IID_IMMDeviceEnumerator
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#define mpg123_CLSID_IMMDeviceEnumerator CLSID_MMDeviceEnumerator
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#define mpg123_IID_IAudioRenderClient IID_IAudioRenderClient
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#define mpg123_PKEY_Device_FriendlyName PKEY_Device_FriendlyName
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#endif
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/* Push mode does not work right yet, noisy audio, probably something to do with timing and buffers */
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#define MOD_STRING "Experimental Audio output for Windows"
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#define BUFFER_TIME 20000000.0
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static int init_win32(out123_handle* ao);
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static void flush_win32(out123_handle *ao);
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/*
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Module information data structure
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*/
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mpg123_module_t mpg123_output_module_info = {
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/* api_version */ MPG123_MODULE_API_VERSION,
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/* name */ "win32_wasapi",
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/* description */ MOD_STRING,
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/* revision */ "$Rev:$",
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/* handle */ NULL,
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/* init_output */ init_win32,
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};
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// REFERENCE_TIME time units per second and per millisecond
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#define REFTIMES_PER_SEC 10000000
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#define REFTIMES_PER_MILLISEC 10000
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#define EXIT_ON_ERROR(hres) \
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if (FAILED(hres)) { goto Exit; }
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/* todo: move into handle struct */
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typedef struct _wasapi_state_struct {
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IMMDeviceEnumerator *pEnumerator;
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IMMDevice *pDevice;
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IAudioClient *pAudioClient;
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IAudioRenderClient *pRenderClient;
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BYTE *pData;
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UINT32 bufferFrameCount, numFramesAvailable;
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REFERENCE_TIME hnsRequestedDuration;
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HANDLE hEvent;
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HANDLE hTask;
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size_t pData_off;
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DWORD taskIndex;
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char is_playing;
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DWORD framesize;
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DWORD renderMode;
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char is_EventMode;
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} wasapi_state_struct;
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/* setup endpoints */
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static int open_win32(out123_handle *ao){
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HRESULT hr = 0;
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wchar_t *device = NULL;
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int devlen;
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wasapi_state_struct *state;
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debug1("%s",__FUNCTION__);
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if(!ao || ao->userptr) return -1; /* userptr should really be null */
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state = calloc(sizeof(*state),1);
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if(!state) return -1;
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state->hnsRequestedDuration = REFTIMES_PER_SEC;
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ao->userptr = (void *)state;
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state->renderMode = AUDCLNT_SHAREMODE_SHARED;
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state->is_EventMode = 1;
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hr = CoCreateInstance(&mpg123_CLSID_IMMDeviceEnumerator,NULL,CLSCTX_ALL, &mpg123_IID_IMMDeviceEnumerator,(void**)&state->pEnumerator);
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mdebug("CoCreateInstance %x", hr);
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EXIT_ON_ERROR(hr)
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if (ao->device) {
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devlen = win32_utf8_wide(ao->device, &device, NULL);
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if(device && devlen > 0) {
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hr = IMMDeviceEnumerator_GetDevice(state->pEnumerator, device, &state->pDevice);
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mdebug("IMMDeviceEnumerator_GetDevice %x", hr);
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free(device);
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} else {
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debug("IMMDeviceEnumerator_GetDevice convert fail");
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return -1;
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}
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} else {
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hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(state->pEnumerator,eRender, eConsole, &state->pDevice);
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mdebug("IMMDeviceEnumerator_GetDefaultAudioEndpoint %x", hr);
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}
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EXIT_ON_ERROR(hr)
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hr = IMMDeviceActivator_Activate(state->pDevice,
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&mpg123_IID_IAudioClient, CLSCTX_ALL,
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NULL, (void**)&state->pAudioClient);
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debug("IMMDeviceActivator_Activate");
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EXIT_ON_ERROR(hr)
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return 0;
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Exit:
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mdebug("%s failed with %lx", __FUNCTION__, hr);
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return 1;
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}
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static int formats_generator(const out123_handle * const ao, const int waveformat, WAVEFORMATEX *const format){
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DWORD bytes_per_sample = 0;
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WORD tag = WAVE_FORMAT_PCM;
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mdebug("%s",__FUNCTION__);
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int ret = waveformat;
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switch(waveformat){
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case MPG123_ENC_ULAW_8:
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tag = WAVE_FORMAT_MULAW;
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bytes_per_sample = 1;
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break;
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case MPG123_ENC_ALAW_8:
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tag = WAVE_FORMAT_ALAW;
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bytes_per_sample = 1;
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break;
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case MPG123_ENC_SIGNED_8:
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bytes_per_sample = 1;
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break;
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case MPG123_ENC_FLOAT_32:
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tag = WAVE_FORMAT_IEEE_FLOAT;
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bytes_per_sample = 4;
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case MPG123_ENC_SIGNED_32:
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bytes_per_sample = 4;
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break;
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case MPG123_ENC_SIGNED_16:
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bytes_per_sample = 2;
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break;
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case MPG123_ENC_SIGNED_24:
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bytes_per_sample = 3;
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break;
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default:
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mdebug("uh oh unknown %x",waveformat);
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ret = 0;
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break;
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}
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format->wFormatTag = tag;
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format->nChannels = ao->channels;
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format->nSamplesPerSec = ao->rate;
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format->nAvgBytesPerSec = ao->channels * bytes_per_sample * ao->rate;
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format->nBlockAlign = ao->channels * bytes_per_sample;
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format->wBitsPerSample = bytes_per_sample * 8;
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format->cbSize = 0;
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return ret;
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}
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/* check supported formats */
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typedef struct {
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unsigned int format;
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const char *name;
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} tknown_formats;
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static const tknown_formats known_formats[] = {
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{ .format = MPG123_ENC_SIGNED_8, .name = "MPG123_ENC_SIGNED_8" },
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{ .format = MPG123_ENC_SIGNED_16, .name = "MPG123_ENC_SIGNED_16" },
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{ .format = MPG123_ENC_SIGNED_24, .name = "MPG123_ENC_SIGNED_24" },
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{ .format = MPG123_ENC_SIGNED_32, .name = "MPG123_ENC_SIGNED_32" },
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{ .format = MPG123_ENC_FLOAT_32, .name = "MPG123_ENC_FLOAT_16" },
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{ .format = MPG123_ENC_ALAW_8, .name = "MPG123_ENC_ALAW_8" },
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{ .format = MPG123_ENC_ULAW_8, .name = "MPG123_ENC_ULAW_8" },
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{ .format = 0, .name = NULL }
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};
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static int get_formats_win32(out123_handle *ao){
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/* PLEASE check with write_init and write_win32 buffer size calculation in case it is able to support something other than 16bit */
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HRESULT hr;
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WAVEFORMATEX wf, *pClosestMatch = NULL;
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int ret = 0, i;
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mdebug("%s",__FUNCTION__);
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if(!ao || !ao->userptr) return -1;
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wasapi_state_struct *state = (wasapi_state_struct *) ao->userptr;
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mdebug("format %lx, channels %d, rate %ld",ao->format, ao->channels, ao->rate);
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||||
for(i = 0; known_formats[i].name; i++) {
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if(ao->format & known_formats[i].format) {
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formats_generator(ao, known_formats[i].format, &wf);
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if((hr = IAudioClient_IsFormatSupported(state->pAudioClient, state->renderMode, &wf, &pClosestMatch)) == S_OK) {
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mdebug("OK format %s rate %ld supported", known_formats[i].name, ao->rate);
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||||
ret |= known_formats[i].format;
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||||
} else {
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||||
if(hr & AUDCLNT_E_UNSUPPORTED_FORMAT) debug2("format %s rate %ld not supported", known_formats[i].name, ao->rate);
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||||
if(pClosestMatch) {
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mdebug("Suggested: wFormatTag %x", pClosestMatch->wFormatTag);
|
||||
mdebug("Suggested: nChannels %u", pClosestMatch->nChannels);
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||||
mdebug("Suggested: nSamplesPerSec %lu", pClosestMatch->nSamplesPerSec);
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||||
mdebug("Suggested: nAvgBytesPerSec %lu", pClosestMatch->nAvgBytesPerSec);
|
||||
mdebug("Suggested: nBlockAlign %u", pClosestMatch->nBlockAlign);
|
||||
mdebug("Suggested: wBitsPerSample %u", pClosestMatch->wBitsPerSample);
|
||||
mdebug("Suggested: cbSize %u", pClosestMatch->cbSize);
|
||||
}
|
||||
}
|
||||
if(pClosestMatch) CoTaskMemFree(pClosestMatch);
|
||||
pClosestMatch = NULL;
|
||||
}
|
||||
}
|
||||
mdebug("supported format %lx, channels %d, rate %ld",ret, ao->channels, ao->rate);
|
||||
|
||||
return ret; /* afaik only 16bit 44.1kHz/48kHz has been known to work */
|
||||
}
|
||||
|
||||
/* setup with agreed on format, for now only MPG123_ENC_SIGNED_16 */
|
||||
static int write_init(out123_handle *ao){
|
||||
HRESULT hr;
|
||||
double offset = 0.5;
|
||||
|
||||
mdebug("%s",__FUNCTION__);
|
||||
if(!ao || !ao->userptr) return -1;
|
||||
wasapi_state_struct *state = (wasapi_state_struct *) ao->userptr;
|
||||
|
||||
WAVEFORMATEX s16;
|
||||
formats_generator(ao,ao->format,&s16);
|
||||
state->framesize = s16.nBlockAlign;
|
||||
mdebug("block size %ld", state->framesize);
|
||||
/* cargo cult code */
|
||||
hr = IAudioClient_GetDevicePeriod(state->pAudioClient,NULL, &state->hnsRequestedDuration);
|
||||
mdebug("IAudioClient_GetDevicePeriod %x", hr);
|
||||
reinit:
|
||||
hr = IAudioClient_Initialize(state->pAudioClient,
|
||||
state->renderMode,
|
||||
state->is_EventMode ? AUDCLNT_STREAMFLAGS_EVENTCALLBACK : 0,
|
||||
state->hnsRequestedDuration,
|
||||
state->renderMode == AUDCLNT_SHAREMODE_EXCLUSIVE ? state->hnsRequestedDuration : 0,
|
||||
&s16,
|
||||
NULL);
|
||||
mdebug("IAudioClient_Initialize %x", hr);
|
||||
if(hr == AUDCLNT_E_DEVICE_IN_USE){
|
||||
debug("AUDCLNT_SHAREMODE_EXCLUSIVE not possible, another application is using IAudioClient");
|
||||
}
|
||||
/* something about buffer sizes on Win7, fixme might loop forever */
|
||||
if (hr == AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED){
|
||||
if (offset > 10.0) goto Exit; /* is 10 enough to break out of the loop?*/
|
||||
debug("AUDCLNT_E_BUFFER_SIZE_NOT_ALIGNED");
|
||||
IAudioClient_GetBufferSize(state->pAudioClient,&state->bufferFrameCount);
|
||||
/* double buffered */
|
||||
state->hnsRequestedDuration = (REFERENCE_TIME)((BUFFER_TIME / s16.nSamplesPerSec * state->bufferFrameCount) + offset);
|
||||
offset += 0.5;
|
||||
IAudioClient_Release(state->pAudioClient);
|
||||
state->pAudioClient = NULL;
|
||||
hr = IMMDeviceActivator_Activate(state->pDevice,
|
||||
&mpg123_IID_IAudioClient, CLSCTX_ALL,
|
||||
NULL, (void**)&state->pAudioClient);
|
||||
mdebug("IMMDeviceActivator_Activate %x", hr);
|
||||
goto reinit;
|
||||
}
|
||||
EXIT_ON_ERROR(hr)
|
||||
hr = IAudioClient_GetService(state->pAudioClient,
|
||||
&mpg123_IID_IAudioRenderClient,
|
||||
(void**)&state->pRenderClient);
|
||||
mdebug("IAudioClient_GetService %x", hr);
|
||||
EXIT_ON_ERROR(hr)
|
||||
if (state->is_EventMode) {
|
||||
state->hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
|
||||
mdebug("CreateEvent %p", state->hEvent);
|
||||
if(!state->hEvent) goto Exit;
|
||||
hr = IAudioClient_SetEventHandle(state->pAudioClient,state->hEvent);
|
||||
mdebug("IAudioClient_SetEventHandle %x", hr);
|
||||
EXIT_ON_ERROR(hr);
|
||||
}
|
||||
hr = IAudioClient_GetBufferSize(state->pAudioClient,&state->bufferFrameCount);
|
||||
mdebug("IAudioClient_GetBufferSize %x", hr);
|
||||
EXIT_ON_ERROR(hr)
|
||||
return 0;
|
||||
Exit:
|
||||
mdebug("%s failed with %lx", __FUNCTION__, hr);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Set play mode if unset, also raise thread priority */
|
||||
static HRESULT play_init(out123_handle *ao){
|
||||
HRESULT hr = S_OK;
|
||||
if(!ao || !ao->userptr) return -1;
|
||||
wasapi_state_struct *state = (wasapi_state_struct *) ao->userptr;
|
||||
if(!state->is_playing){
|
||||
mdebug("%s",__FUNCTION__);
|
||||
state->hTask = AvSetMmThreadCharacteristicsW(L"Pro Audio", &state->taskIndex);
|
||||
hr = IAudioClient_Start(state->pAudioClient);
|
||||
mdebug("IAudioClient_Start %x", hr);
|
||||
EXIT_ON_ERROR(hr)
|
||||
state->is_playing = 1;
|
||||
}
|
||||
return hr;
|
||||
Exit:
|
||||
mdebug("%s failed with %lx", __FUNCTION__, hr);
|
||||
return hr;
|
||||
}
|
||||
|
||||
/* copy audio into IAudioRenderClient provided buffer */
|
||||
static int write_win32(out123_handle *ao, unsigned char *buf, int len){
|
||||
HRESULT hr;
|
||||
UINT32 numFramesPadding = 0;
|
||||
size_t to_copy = 0;
|
||||
mdebug("%s",__FUNCTION__);
|
||||
if(!ao || !ao->userptr) return -1;
|
||||
wasapi_state_struct *state = (wasapi_state_struct *) ao->userptr;
|
||||
if(!len) return 0;
|
||||
if(!state->pRenderClient) write_init(ao);
|
||||
size_t frames_in = len/state->framesize; /* Frames in buf, is framesize even correct? */
|
||||
mdebug("%s mode entered", state->is_EventMode ? "Event" : "Push");
|
||||
|
||||
if(state->is_EventMode) {
|
||||
/* Event mode WASAPI */
|
||||
DWORD retval = -1;
|
||||
int flag = 0; /* Silence flag */
|
||||
feed_again_event:
|
||||
if(!state->pData){
|
||||
/* Acquire buffer */
|
||||
hr = IAudioClient_GetCurrentPadding(state->pAudioClient,&numFramesPadding);
|
||||
mdebug("IAudioClient_GetCurrentPadding %x", hr);
|
||||
EXIT_ON_ERROR(hr)
|
||||
|
||||
state->numFramesAvailable = state->bufferFrameCount - numFramesPadding;
|
||||
|
||||
hr = IAudioRenderClient_GetBuffer(state->pRenderClient, state->numFramesAvailable, &state->pData);
|
||||
mdebug("IAudioRenderClient_GetBuffer %lu %x", state->numFramesAvailable, hr);
|
||||
EXIT_ON_ERROR(hr)
|
||||
}
|
||||
if(frames_in){ /* Did we get half a frame?? non-zero len smaller than framesize? */
|
||||
/* We must put in exactly the amount of frames specified by IAudioRenderClient_GetBuffer */
|
||||
mdebug("frames_in %"PRIu64", state->pData_off %u, numFramesAvailable %u", frames_in, state->pData_off, state->numFramesAvailable);
|
||||
while(state->pData_off < state->numFramesAvailable){
|
||||
to_copy = state->numFramesAvailable - state->pData_off;
|
||||
mdebug("pData_off %"PRId64", numFramesAvailable %d, to_copy %"PRIu64, state->pData_off, state->numFramesAvailable, to_copy);
|
||||
if(to_copy > frames_in){
|
||||
/* buf can fit in provided buffer space */
|
||||
mdebug("all buffers copied, %"PRIu64, frames_in);
|
||||
memcpy(state->pData+state->pData_off*state->framesize,buf,state->framesize*(frames_in));
|
||||
state->pData_off += frames_in;
|
||||
frames_in = 0;
|
||||
break;
|
||||
} else {
|
||||
/* buf too big, needs spliting */
|
||||
mdebug("partial buffers %"PRIu64, to_copy);
|
||||
memcpy(state->pData+state->pData_off*state->framesize,buf,state->framesize*(to_copy));
|
||||
state->pData_off += to_copy;
|
||||
buf+=(to_copy*state->framesize);
|
||||
frames_in -= to_copy;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
debug("AUDCLNT_BUFFERFLAGS_SILENT");
|
||||
/* In case we ever get half a frame, is it possible? */
|
||||
flag = AUDCLNT_BUFFERFLAGS_SILENT;
|
||||
}
|
||||
mdebug("Copied %"PRIu64", left %"PRIu64, state->pData_off, frames_in);
|
||||
if(state->pData_off == state->numFramesAvailable) {
|
||||
/* Tell IAudioRenderClient that buffer is filled and released */
|
||||
hr = IAudioRenderClient_ReleaseBuffer(state->pRenderClient,state->pData_off, flag);
|
||||
state->pData_off = 0;
|
||||
state->pData = NULL;
|
||||
debug("IAudioRenderClient_ReleaseBuffer");
|
||||
EXIT_ON_ERROR(hr)
|
||||
if(!state->is_playing){
|
||||
hr = play_init(ao);
|
||||
EXIT_ON_ERROR(hr)
|
||||
}
|
||||
/* wait for next pull event */
|
||||
retval = WaitForSingleObject(state->hEvent, 2000);
|
||||
if (retval != WAIT_OBJECT_0){
|
||||
/* Event handle timed out after a 2-second wait, something went very wrong */
|
||||
IAudioClient_Stop(state->pAudioClient);
|
||||
hr = ERROR_TIMEOUT;
|
||||
goto Exit;
|
||||
}
|
||||
}
|
||||
if(frames_in > 0)
|
||||
goto feed_again_event;
|
||||
} else { /* PUSH mode code */
|
||||
mdebug("block size %"PRIu64", %d len, %"PRIu64" number of frames", state->framesize, len, frames_in);
|
||||
feed_again_push:
|
||||
/* How much buffer do we get to use? */
|
||||
hr = IAudioClient_GetBufferSize(state->pAudioClient,&state->bufferFrameCount);
|
||||
mdebug("IAudioClient_GetBufferSize %x", hr);
|
||||
EXIT_ON_ERROR(hr)
|
||||
hr = IAudioClient_GetCurrentPadding(state->pAudioClient,&numFramesPadding);
|
||||
mdebug("IAudioClient_GetCurrentPadding %x", hr);
|
||||
EXIT_ON_ERROR(hr)
|
||||
/* How much buffer is writable at the moment? */
|
||||
state->numFramesAvailable = state->bufferFrameCount - numFramesPadding;
|
||||
mdebug("numFramesAvailable %d, bufferFrameCount %d, numFramesPadding %d", state->numFramesAvailable, state->bufferFrameCount, numFramesPadding);
|
||||
|
||||
if(state->numFramesAvailable > frames_in){
|
||||
/* can fit all frames now */
|
||||
state->pData_off = 0;
|
||||
to_copy = frames_in;
|
||||
} else {
|
||||
/* copy whatever that fits in the buffer */
|
||||
state->pData_off = frames_in - state->numFramesAvailable;
|
||||
to_copy = state->numFramesAvailable;
|
||||
}
|
||||
|
||||
/* Acquire buffer */
|
||||
hr = IAudioRenderClient_GetBuffer(state->pRenderClient, to_copy, &state->pData);
|
||||
mdebug("IAudioRenderClient_GetBuffer %"PRIu64" frames", to_copy);
|
||||
EXIT_ON_ERROR(hr)
|
||||
|
||||
/* Copy buffer */
|
||||
memcpy(state->pData, buf + state->pData_off * state->framesize, to_copy * state->framesize);
|
||||
|
||||
/* Release buffer */
|
||||
hr = IAudioRenderClient_ReleaseBuffer(state->pRenderClient, to_copy, 0);
|
||||
mdebug("IAudioRenderClient_ReleaseBuffer %x", hr);
|
||||
|
||||
EXIT_ON_ERROR(hr)
|
||||
if(!state->is_playing){
|
||||
hr = play_init(ao);
|
||||
EXIT_ON_ERROR(hr)
|
||||
}
|
||||
frames_in -= to_copy;
|
||||
/* Wait sometime for buffer to empty? */
|
||||
DWORD sleeptime = ((double)REFTIMES_PER_SEC) * to_copy / ao->rate / REFTIMES_PER_MILLISEC / 2;
|
||||
mdebug("Sleeping %ld msec", sleeptime);
|
||||
Sleep(sleeptime);
|
||||
if (frames_in > 0)
|
||||
goto feed_again_push;
|
||||
}
|
||||
return len;
|
||||
Exit:
|
||||
mdebug("%s failed with %lx", __FUNCTION__, hr);
|
||||
return -1;
|
||||
}
|
||||
|
||||
static void flush_win32(out123_handle *ao){
|
||||
/* Wait for the last buffer to play before stopping. */
|
||||
mdebug("%s",__FUNCTION__);
|
||||
if(!ao || !ao->userptr) return;
|
||||
wasapi_state_struct *state = (wasapi_state_struct *) ao->userptr;
|
||||
HRESULT hr;
|
||||
if(!state->pAudioClient) return;
|
||||
state->pData = NULL;
|
||||
hr = IAudioClient_Stop(state->pAudioClient);
|
||||
EXIT_ON_ERROR(hr)
|
||||
IAudioClient_Reset(state->pAudioClient);
|
||||
EXIT_ON_ERROR(hr)
|
||||
return;
|
||||
Exit:
|
||||
mdebug("%s IAudioClient_Stop with %lx", __FUNCTION__, hr);
|
||||
}
|
||||
|
||||
static int close_win32(out123_handle *ao)
|
||||
{
|
||||
mdebug("%s",__FUNCTION__);
|
||||
if(!ao || !ao->userptr) return -1;
|
||||
wasapi_state_struct *state = (wasapi_state_struct *) ao->userptr;
|
||||
if(state->is_EventMode && state->pData){
|
||||
/* Play all in buffer before closing */
|
||||
debug("Flushing remaining buffers");
|
||||
IAudioRenderClient_ReleaseBuffer(state->pRenderClient,state->bufferFrameCount, 0);
|
||||
WaitForSingleObject(state->hEvent, 2000);
|
||||
state->pData = NULL;
|
||||
}
|
||||
if(state->pAudioClient) IAudioClient_Stop(state->pAudioClient);
|
||||
if(state->pRenderClient) IAudioRenderClient_Release(state->pRenderClient);
|
||||
if(state->pAudioClient) IAudioClient_Release(state->pAudioClient);
|
||||
if(state->hTask) AvRevertMmThreadCharacteristics(state->hTask);
|
||||
if(state->pEnumerator) IMMDeviceEnumerator_Release(state->pEnumerator);
|
||||
if(state->pDevice) IMMDevice_Release(state->pDevice);
|
||||
free(state);
|
||||
ao->userptr = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int enumerate_win32( out123_handle *ao, int (*store_device)(void *devlist
|
||||
, const char *name, const char *description), void *devlist )
|
||||
{
|
||||
int len;
|
||||
char *pszID = NULL, *pszDesc = NULL;
|
||||
HRESULT hr = S_OK;
|
||||
UINT pcDevices = 0, i = 0;
|
||||
LPWSTR pwszID = NULL;
|
||||
IMMDeviceEnumerator *pEnumerator = NULL;
|
||||
IMMDeviceCollection *pCollection = NULL;
|
||||
IPropertyStore *pProps = NULL;
|
||||
IMMDevice *pDevice = NULL;
|
||||
PROPVARIANT varName;
|
||||
|
||||
hr = CoCreateInstance(&mpg123_CLSID_IMMDeviceEnumerator,NULL,CLSCTX_ALL, &mpg123_IID_IMMDeviceEnumerator,(void**)&pEnumerator);
|
||||
if(FAILED(hr) || pEnumerator == NULL) goto Exit;
|
||||
hr = IMMDeviceEnumerator_EnumAudioEndpoints(pEnumerator, eRender, DEVICE_STATE_ACTIVE, &pCollection);
|
||||
if(FAILED(hr) || pCollection == NULL) goto Exit;
|
||||
hr = IMMDeviceCollection_GetCount(pCollection, &pcDevices);
|
||||
EXIT_ON_ERROR(hr)
|
||||
|
||||
for(i = 0; i < pcDevices; i++) {
|
||||
/* init */
|
||||
hr = IMMDeviceCollection_Item(pCollection, i, &pDevice);
|
||||
if(FAILED(hr) || pDevice == NULL) goto Exit;
|
||||
hr = IMMDevice_GetId(pDevice, &pwszID);
|
||||
if(FAILED(hr) || pwszID == NULL) goto Exit;
|
||||
hr = IMMDevice_OpenPropertyStore(pDevice, STGM_READ, &pProps);
|
||||
if(FAILED(hr) || pProps == NULL) goto Exit;
|
||||
|
||||
/* get ID */
|
||||
win32_wide_utf8(pwszID, &pszID, NULL);
|
||||
if(pszID == NULL) goto Exit;
|
||||
|
||||
/* get Property */
|
||||
PropVariantInit(&varName);
|
||||
hr = IPropertyStore_GetValue(pProps, &mpg123_PKEY_Device_FriendlyName, &varName);
|
||||
if(FAILED(hr)) {
|
||||
PropVariantClear(&varName);
|
||||
goto Exit;
|
||||
}
|
||||
|
||||
/* get Description*/
|
||||
win32_wide_utf8(varName.pwszVal, &pszDesc, NULL);
|
||||
PropVariantClear(&varName);
|
||||
if(pszDesc == NULL) goto Exit;
|
||||
|
||||
/* store */
|
||||
if(store_device(devlist, pszID, pszDesc))
|
||||
goto Exit;
|
||||
|
||||
/* release */
|
||||
free(pszID);
|
||||
pszID = NULL;
|
||||
free(pszDesc);
|
||||
pszDesc = NULL;
|
||||
CoTaskMemFree(pwszID);
|
||||
pwszID = NULL;
|
||||
IMMDeviceEnumerator_Release(pDevice);
|
||||
}
|
||||
|
||||
IMMDeviceCollection_Release(pCollection);
|
||||
IMMDeviceEnumerator_Release(pEnumerator);
|
||||
return 0;
|
||||
|
||||
Exit:
|
||||
if(pszDesc) free(pszDesc);
|
||||
if(pszID) free(pszID);
|
||||
if(pwszID) CoTaskMemFree(pwszID);
|
||||
if(pProps) IPropertyStore_Release(pProps);
|
||||
if(pDevice) IMMDeviceEnumerator_Release(pDevice);
|
||||
if(pCollection) IMMDeviceCollection_Release(pCollection);
|
||||
if(pEnumerator) IMMDeviceEnumerator_Release(pEnumerator);
|
||||
return -1;
|
||||
}
|
||||
static void deinit_win32(out123_handle* ao)
|
||||
{
|
||||
/* Deinitialize things from init_win32(). */
|
||||
CoUninitialize();
|
||||
}
|
||||
|
||||
static int init_win32(out123_handle* ao){
|
||||
HRESULT hr;
|
||||
mdebug("%s",__FUNCTION__);
|
||||
if(!ao) return -1;
|
||||
|
||||
hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
|
||||
mdebug("CoInitializeEx %x", hr);
|
||||
if(!(hr == S_OK || hr == S_FALSE))
|
||||
return -1;
|
||||
|
||||
/* Set callbacks */
|
||||
ao->open = open_win32;
|
||||
ao->flush = flush_win32;
|
||||
ao->write = write_win32;
|
||||
ao->get_formats = get_formats_win32;
|
||||
ao->close = close_win32;
|
||||
ao->userptr = NULL;
|
||||
ao->enumerate = enumerate_win32;
|
||||
|
||||
/* Success */
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user