364 lines
10 KiB
C
364 lines
10 KiB
C
/*
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* Copyright (C) 2010-2011 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO 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 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO 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
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* along with DOUBANGO.
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*
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*/
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/**@file tdav_producer_dsound.c
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* @brief Microsoft DirectSound producer.
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*
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* @author Mamadou Diop <diopmamadou(at)doubango.org>
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*
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*/
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#include "tinydav/audio/directsound/tdav_producer_dsound.h"
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#if HAVE_DSOUND_H
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#if defined(_MSC_VER)
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# pragma comment(lib, "dsound.lib")
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# pragma comment(lib, "dxguid.lib")
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#endif
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#define FIXME_SEND_SILENCE_ON_MUTE 0
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#include "tsk_thread.h"
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#include "tsk_memory.h"
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#include "tsk_debug.h"
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#include <initguid.h>
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extern void tdav_win32_print_error(const char* func, HRESULT hr);
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static void *_tdav_producer_dsound_record_thread(void *param)
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{
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tdav_producer_dsound_t* dsound = (tdav_producer_dsound_t*)param;
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HRESULT hr;
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LPVOID lpvAudio1, lpvAudio2;
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DWORD dwBytesAudio1, dwBytesAudio2;
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TSK_DEBUG_INFO("__record_thread -- START");
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SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST);
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while(dsound->started){
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DWORD dwEvent = WaitForMultipleObjects(TDAV_DSOUND_PRODUCER_NOTIF_POS_COUNT, dsound->notifEvents, FALSE, INFINITE);
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if(!dsound->started){
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break;
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}
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// lock
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if((hr = IDirectSoundCaptureBuffer_Lock(dsound->captureBuffer, (dwEvent * dsound->bytes_per_notif), dsound->bytes_per_notif, &lpvAudio1, &dwBytesAudio1, &lpvAudio2, &dwBytesAudio2, 0)) != DS_OK){
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tdav_win32_print_error("IDirectSoundCaptureBuffer_Lock", hr);
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continue;
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}
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if(TMEDIA_PRODUCER(dsound)->enc_cb.callback){
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#if FIXME_SEND_SILENCE_ON_MUTE
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if(dsound->mute){
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memset(lpvAudio1, 0, dwBytesAudio1);
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if(lpvAudio2){
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memset(lpvAudio2, 0, dwBytesAudio2);
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}
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}
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#endif
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TMEDIA_PRODUCER(dsound)->enc_cb.callback(TMEDIA_PRODUCER(dsound)->enc_cb.callback_data, lpvAudio1, dwBytesAudio1);
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if(lpvAudio2){
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TMEDIA_PRODUCER(dsound)->enc_cb.callback(TMEDIA_PRODUCER(dsound)->enc_cb.callback_data, lpvAudio2, dwBytesAudio2);
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}
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}
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// unlock
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if((hr = IDirectSoundCaptureBuffer_Unlock(dsound->captureBuffer, lpvAudio1, dwBytesAudio1, lpvAudio2, dwBytesAudio2)) != DS_OK){
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tdav_win32_print_error("IDirectSoundCaptureBuffer_Unlock", hr);
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continue;
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}
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}
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TSK_DEBUG_INFO("__record_thread -- STOP");
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return tsk_null;
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}
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static int _tdav_producer_dsound_unprepare(tdav_producer_dsound_t* dsound)
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{
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if(dsound){
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tsk_size_t i;
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if(dsound->captureBuffer){
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IDirectSoundCaptureBuffer_Release(dsound->captureBuffer);
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dsound->captureBuffer = NULL;
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}
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if(dsound->device){
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IDirectSoundCapture_Release(dsound->device);
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dsound->device = NULL;
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}
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for(i = 0; i<sizeof(dsound->notifEvents)/sizeof(dsound->notifEvents[0]); i++){
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if(dsound->notifEvents[i]){
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CloseHandle(dsound->notifEvents[i]);
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dsound->notifEvents[i] = NULL;
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}
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}
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}
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return 0;
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}
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/* ============ Media Producer Interface ================= */
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static int tdav_producer_dsound_set(tmedia_producer_t* self, const tmedia_param_t* param)
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{
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tdav_producer_dsound_t* dsound = (tdav_producer_dsound_t*)self;
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if(param->plugin_type == tmedia_ppt_producer){
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if(param->value_type == tmedia_pvt_int32){
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if(tsk_striequals(param->key, "mute")){
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dsound->mute = (TSK_TO_INT32((uint8_t*)param->value) != 0);
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#if !FIXME_SEND_SILENCE_ON_MUTE
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if(dsound->started){
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if(dsound->mute){
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IDirectSoundCaptureBuffer_Stop(dsound->captureBuffer);
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}
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else{
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IDirectSoundCaptureBuffer_Start(dsound->captureBuffer, DSBPLAY_LOOPING);
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}
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}
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#endif
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return 0;
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}
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}
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}
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return tdav_producer_audio_set(TDAV_PRODUCER_AUDIO(self), param);
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}
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static int tdav_producer_dsound_prepare(tmedia_producer_t* self, const tmedia_codec_t* codec)
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{
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HRESULT hr;
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WAVEFORMATEX wfx = {0};
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DSCBUFFERDESC dsbd = {0};
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tdav_producer_dsound_t* dsound = (tdav_producer_dsound_t*)self;
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if(!dsound || !codec){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(dsound->device || dsound->captureBuffer){
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TSK_DEBUG_ERROR("Producer already prepared");
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return -2;
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}
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TMEDIA_PRODUCER(dsound)->audio.channels = codec->plugin->audio.channels;
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TMEDIA_PRODUCER(dsound)->audio.rate = codec->plugin->rate;
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TMEDIA_PRODUCER(dsound)->audio.ptime = codec->plugin->audio.ptime;
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/* Create capture device */
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if((hr = DirectSoundCaptureCreate(NULL, &dsound->device, NULL) != DS_OK)){
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tdav_win32_print_error("DirectSoundCaptureCreate", hr);
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return -3;
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}
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/* Creates the capture buffer */
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wfx.wFormatTag = WAVE_FORMAT_PCM;
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wfx.nChannels = TMEDIA_PRODUCER(dsound)->audio.channels;
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wfx.nSamplesPerSec = TMEDIA_PRODUCER(dsound)->audio.rate;
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wfx.wBitsPerSample = TMEDIA_PRODUCER(dsound)->audio.bits_per_sample;
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wfx.nBlockAlign = (wfx.nChannels * wfx.wBitsPerSample/8);
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wfx.nAvgBytesPerSec = (wfx.nSamplesPerSec * wfx.nBlockAlign);
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/* Average bytes (count) for each notification */
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dsound->bytes_per_notif = ((wfx.nAvgBytesPerSec * TMEDIA_PRODUCER(dsound)->audio.ptime)/1000);
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dsbd.dwSize = sizeof(DSCBUFFERDESC);
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dsbd.dwBufferBytes = (TDAV_DSOUND_PRODUCER_NOTIF_POS_COUNT * dsound->bytes_per_notif);
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dsbd.lpwfxFormat = &wfx;
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if((hr = IDirectSoundCapture_CreateCaptureBuffer(dsound->device, &dsbd, &dsound->captureBuffer, NULL)) != DS_OK){
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tdav_win32_print_error("IDirectSoundCapture_CreateCaptureBuffer", hr);
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return -4;
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}
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return 0;
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}
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static int tdav_producer_dsound_start(tmedia_producer_t* self)
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{
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tdav_producer_dsound_t* dsound = (tdav_producer_dsound_t*)self;
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tsk_size_t i;
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HRESULT hr;
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LPDIRECTSOUNDNOTIFY lpDSBNotify;
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DSBPOSITIONNOTIFY pPosNotify[TDAV_DSOUND_PRODUCER_NOTIF_POS_COUNT] = {0};
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if(!dsound){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(!dsound->device || !dsound->captureBuffer){
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TSK_DEBUG_ERROR("Producer not prepared");
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return -2;
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}
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if(dsound->started){
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return 0;
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}
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if((hr = IDirectSoundCaptureBuffer_QueryInterface(dsound->captureBuffer, &IID_IDirectSoundNotify, (LPVOID*)&lpDSBNotify)) != DS_OK){
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tdav_win32_print_error("IDirectSoundCaptureBuffer_QueryInterface", hr);
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return -3;
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}
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/* Events associated to notification points */
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for(i = 0; i<TDAV_DSOUND_PRODUCER_NOTIF_POS_COUNT; i++){
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dsound->notifEvents[i] = CreateEvent(NULL, FALSE, FALSE, NULL);
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pPosNotify[i].dwOffset = (dsound->bytes_per_notif * i) + (dsound->bytes_per_notif >> 1);
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pPosNotify[i].hEventNotify = dsound->notifEvents[i];
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}
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if((hr = IDirectSoundNotify_SetNotificationPositions(lpDSBNotify, TDAV_DSOUND_PRODUCER_NOTIF_POS_COUNT, pPosNotify)) != DS_OK){
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IDirectSoundNotify_Release(lpDSBNotify);
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tdav_win32_print_error("IDirectSoundBuffer_QueryInterface", hr);
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return -4;
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}
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if((hr = IDirectSoundNotify_Release(lpDSBNotify))){
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tdav_win32_print_error("IDirectSoundNotify_Release", hr);
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}
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/* Start the buffer */
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if((hr = IDirectSoundCaptureBuffer_Start(dsound->captureBuffer, DSBPLAY_LOOPING)) != DS_OK){
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tdav_win32_print_error("IDirectSoundCaptureBuffer_Start", hr);
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return -5;
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}
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/* start the reader thread */
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dsound->started = tsk_true;
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tsk_thread_create(&dsound->tid[0], _tdav_producer_dsound_record_thread, dsound);
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return 0;
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}
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static int tdav_producer_dsound_pause(tmedia_producer_t* self)
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{
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return 0;
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}
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static int tdav_producer_dsound_stop(tmedia_producer_t* self)
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{
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tdav_producer_dsound_t* dsound = (tdav_producer_dsound_t*)self;
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HRESULT hr;
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if(!self){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(!dsound->started){
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return 0;
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}
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// should be done here
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dsound->started = tsk_false;
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#if !FIXME_SEND_SILENCE_ON_MUTE
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if(dsound->mute && dsound->notifEvents[0]){
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// thread is paused -> raise event now that "started" is equal to false
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SetEvent(dsound->notifEvents[0]);
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}
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#endif
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// stop thread
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if(dsound->tid[0]){
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tsk_thread_join(&(dsound->tid[0]));
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}
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if((hr = IDirectSoundCaptureBuffer_Stop(dsound->captureBuffer)) != DS_OK){
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tdav_win32_print_error("IDirectSoundCaptureBuffer_Stop", hr);
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}
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// unprepare
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// will be prepared again before next start()
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_tdav_producer_dsound_unprepare(dsound);
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return 0;
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}
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//
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// WaveAPI producer object definition
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//
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/* constructor */
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static tsk_object_t* tdav_producer_dsound_ctor(tsk_object_t * self, va_list * app)
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{
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tdav_producer_dsound_t *producer = self;
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if(producer){
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/* init base */
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tdav_producer_audio_init(TDAV_PRODUCER_AUDIO(producer));
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/* init self */
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}
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return self;
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}
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/* destructor */
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static tsk_object_t* tdav_producer_dsound_dtor(tsk_object_t * self)
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{
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tdav_producer_dsound_t *dsound = self;
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if(dsound){
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/* stop */
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if(dsound->started){
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tdav_producer_dsound_stop(self);
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}
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/* deinit base */
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tdav_producer_audio_deinit(TDAV_PRODUCER_AUDIO(dsound));
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/* deinit self */
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_tdav_producer_dsound_unprepare(dsound);
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}
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return self;
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}
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/* object definition */
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static const tsk_object_def_t tdav_producer_dsound_def_s =
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{
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sizeof(tdav_producer_dsound_t),
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tdav_producer_dsound_ctor,
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tdav_producer_dsound_dtor,
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tdav_producer_audio_cmp,
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};
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/* plugin definition*/
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static const tmedia_producer_plugin_def_t tdav_producer_dsound_plugin_def_s =
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{
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&tdav_producer_dsound_def_s,
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tmedia_audio,
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"Microsoft DirectSound producer",
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tdav_producer_dsound_set,
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tdav_producer_dsound_prepare,
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tdav_producer_dsound_start,
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tdav_producer_dsound_pause,
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tdav_producer_dsound_stop
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};
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const tmedia_producer_plugin_def_t *tdav_producer_dsound_plugin_def_t = &tdav_producer_dsound_plugin_def_s;
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#endif /* HAVE_DSOUND_H */ |