407 lines
11 KiB
C
407 lines
11 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_consumer_waveapi.c
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* @brief Audio Consumer for Win32 and WinCE platforms.
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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/waveapi/tdav_consumer_waveapi.h"
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#if HAVE_WAVE_API
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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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#define TDAV_WAVEAPI_CONSUMER_ERROR_BUFF_COUNT 0xFF
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#define tdav_consumer_waveapi_set tsk_null
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static void print_last_error(MMRESULT mmrError, const char* func)
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{
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static char buffer_err[TDAV_WAVEAPI_CONSUMER_ERROR_BUFF_COUNT];
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waveOutGetErrorTextA(mmrError, buffer_err, sizeof(buffer_err));
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TSK_DEBUG_ERROR("%s() error: %s", func, buffer_err);
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}
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static int free_wavehdr(tdav_consumer_waveapi_t* consumer, tsk_size_t index)
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{
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if(!consumer || index >= sizeof(consumer->hWaveHeaders)/sizeof(LPWAVEHDR)){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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TSK_FREE(consumer->hWaveHeaders[index]->lpData);
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TSK_FREE(consumer->hWaveHeaders[index]);
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return 0;
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}
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static int create_wavehdr(tdav_consumer_waveapi_t* consumer, tsk_size_t index)
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{
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if(!consumer || index >= sizeof(consumer->hWaveHeaders)/sizeof(LPWAVEHDR)){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(consumer->hWaveHeaders[index]){
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free_wavehdr(consumer, index);
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}
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consumer->hWaveHeaders[index] = tsk_calloc(1, sizeof(WAVEHDR));
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consumer->hWaveHeaders[index]->lpData = tsk_calloc(1, consumer->bytes_per_notif);
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consumer->hWaveHeaders[index]->dwBufferLength = consumer->bytes_per_notif;
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consumer->hWaveHeaders[index]->dwFlags = WHDR_BEGINLOOP | WHDR_ENDLOOP;
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consumer->hWaveHeaders[index]->dwLoops = 0x01;
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consumer->hWaveHeaders[index]->dwUser = index;
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return 0;
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}
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static int write_wavehdr(tdav_consumer_waveapi_t* consumer, tsk_size_t index)
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{
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MMRESULT result;
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if(!consumer || !consumer->hWaveHeaders[index] || !consumer->hWaveOut){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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result = waveOutPrepareHeader(consumer->hWaveOut, consumer->hWaveHeaders[index], sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveOutPrepareHeader");
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return -2;
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}
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result = waveOutWrite(consumer->hWaveOut, consumer->hWaveHeaders[index], sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveOutWrite");
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return -3;
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}
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return 0;
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}
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static int play_wavehdr(tdav_consumer_waveapi_t* consumer, LPWAVEHDR lpHdr)
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{
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MMRESULT result;
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tsk_size_t out_size;
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if(!consumer || !lpHdr || !consumer->hWaveOut){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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result = waveOutUnprepareHeader(consumer->hWaveOut, lpHdr, sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveOutUnprepareHeader");
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return -2;
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}
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//
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//
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// Fill lpHdr->Data with decoded data
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//
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//
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if((out_size = tdav_consumer_audio_get(TDAV_CONSUMER_AUDIO(consumer), lpHdr->lpData, lpHdr->dwBufferLength))){
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//memcpy(lpHdr->lpData, data, lpHdr->dwBufferLength);
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//TSK_FREE(data);
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}
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else{
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/* Put silence */
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memset(lpHdr->lpData, 0, lpHdr->dwBufferLength);
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}
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if(!consumer->started){
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return 0;
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}
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result = waveOutPrepareHeader(consumer->hWaveOut, lpHdr, sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveOutPrepareHeader");
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return -3;
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}
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result = waveOutWrite(consumer->hWaveOut, lpHdr, sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveOutWrite");
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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 void* TSK_STDCALL __playback_thread(void *param)
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{
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tdav_consumer_waveapi_t* consumer = (tdav_consumer_waveapi_t*)param;
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DWORD dwEvent;
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tsk_size_t i;
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TSK_DEBUG_INFO("__playback_thread -- START");
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SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_HIGHEST);
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for(;;){
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dwEvent = WaitForMultipleObjects(2, consumer->events, FALSE, INFINITE);
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if (dwEvent == 1){
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break;
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}
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else if (dwEvent == 0){
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EnterCriticalSection(&consumer->cs);
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for(i = 0; i< sizeof(consumer->hWaveHeaders)/sizeof(LPWAVEHDR); i++){
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if(consumer->hWaveHeaders[i] && (consumer->hWaveHeaders[i]->dwFlags & WHDR_DONE)){
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play_wavehdr(consumer, consumer->hWaveHeaders[i]);
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}
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}
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LeaveCriticalSection(&consumer->cs);
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}
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}
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TSK_DEBUG_INFO("__playback_thread -- STOP");
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return tsk_null;
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}
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/* ============ Media Consumer Interface ================= */
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int tdav_consumer_waveapi_prepare(tmedia_consumer_t* self, const tmedia_codec_t* codec)
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{
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tdav_consumer_waveapi_t* consumer = (tdav_consumer_waveapi_t*)self;
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tsk_size_t i;
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if(!consumer || !codec && codec->plugin){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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TMEDIA_CONSUMER(consumer)->audio.ptime = TMEDIA_CODEC_PTIME_AUDIO_DECODING(codec);
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TMEDIA_CONSUMER(consumer)->audio.in.channels = TMEDIA_CODEC_CHANNELS_AUDIO_DECODING(codec);
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TMEDIA_CONSUMER(consumer)->audio.in.rate = TMEDIA_CODEC_RATE_DECODING(codec);
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/* codec should have ptime */
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/* Format */
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ZeroMemory(&consumer->wfx, sizeof(WAVEFORMATEX));
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consumer->wfx.wFormatTag = WAVE_FORMAT_PCM;
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consumer->wfx.nChannels = TMEDIA_CONSUMER(consumer)->audio.in.channels;
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consumer->wfx.nSamplesPerSec = TMEDIA_CONSUMER(consumer)->audio.out.rate ? TMEDIA_CONSUMER(consumer)->audio.out.rate : TMEDIA_CONSUMER(consumer)->audio.in.rate;
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consumer->wfx.wBitsPerSample = TMEDIA_CONSUMER(consumer)->audio.bits_per_sample;
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consumer->wfx.nBlockAlign = (consumer->wfx.nChannels * consumer->wfx.wBitsPerSample/8);
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consumer->wfx.nAvgBytesPerSec = (consumer->wfx.nSamplesPerSec * consumer->wfx.nBlockAlign);
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/* Average bytes (count) for each notification */
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consumer->bytes_per_notif = ((consumer->wfx.nAvgBytesPerSec * TMEDIA_CONSUMER(consumer)->audio.ptime)/1000);
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/* create buffers */
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for(i = 0; i< sizeof(consumer->hWaveHeaders)/sizeof(consumer->hWaveHeaders[0]); i++){
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create_wavehdr(consumer, i);
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}
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return 0;
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}
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int tdav_consumer_waveapi_start(tmedia_consumer_t* self)
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{
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tdav_consumer_waveapi_t* consumer = (tdav_consumer_waveapi_t*)self;
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MMRESULT result;
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tsk_size_t i;
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if(!consumer){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(consumer->started || consumer->hWaveOut){
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TSK_DEBUG_WARN("Consumer already started");
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return 0;
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}
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/* create events */
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if(!consumer->events[0]){
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consumer->events[0] = CreateEvent(NULL, FALSE, FALSE, NULL);
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}
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if(!consumer->events[1]){
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consumer->events[1] = CreateEvent(NULL, FALSE, FALSE, NULL);
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}
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/* open */
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result = waveOutOpen((HWAVEOUT *)&consumer->hWaveOut, WAVE_MAPPER, &consumer->wfx, (DWORD)consumer->events[0], (DWORD_PTR)consumer, CALLBACK_EVENT);
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveOutOpen");
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return -2;
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}
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/* write */
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for(i = 0; i< sizeof(consumer->hWaveHeaders)/sizeof(consumer->hWaveHeaders[0]); i++){
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write_wavehdr(consumer, i);
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}
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/* start thread */
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consumer->started = tsk_true;
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tsk_thread_create(&consumer->tid[0], __playback_thread, consumer);
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return 0;
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}
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int tdav_consumer_waveapi_consume(tmedia_consumer_t* self, const void* buffer, tsk_size_t size, const tsk_object_t* proto_hdr)
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{
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tdav_consumer_waveapi_t* consumer = (tdav_consumer_waveapi_t*)self;
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if(!consumer || !buffer || !size){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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/* buffer is already decoded */
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return tdav_consumer_audio_put(TDAV_CONSUMER_AUDIO(consumer), buffer, size, proto_hdr);
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}
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int tdav_consumer_waveapi_pause(tmedia_consumer_t* self)
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{
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tdav_consumer_waveapi_t* consumer = (tdav_consumer_waveapi_t*)self;
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if(!consumer){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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return 0;
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}
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int tdav_consumer_waveapi_stop(tmedia_consumer_t* self)
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{
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tdav_consumer_waveapi_t* consumer = (tdav_consumer_waveapi_t*)self;
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MMRESULT result;
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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(!consumer->started){
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TSK_DEBUG_WARN("Consumer not started");
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return 0;
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}
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/* stop thread */
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if(consumer->tid[0]){
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SetEvent(consumer->events[1]);
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tsk_thread_join(&(consumer->tid[0]));
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}
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/* should be done here */
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consumer->started = tsk_false;
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if(consumer->hWaveOut && ((result = waveOutReset(consumer->hWaveOut)) != MMSYSERR_NOERROR)){
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print_last_error(result, "waveOutReset");
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}
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return 0;
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}
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//
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// WaveAPI consumer object definition
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//
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/* constructor */
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static tsk_object_t* tdav_consumer_waveapi_ctor(tsk_object_t * self, va_list * app)
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{
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tdav_consumer_waveapi_t *consumer = self;
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if(consumer){
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/* init base */
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tdav_consumer_audio_init(TDAV_CONSUMER_AUDIO(consumer));
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/* init self */
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InitializeCriticalSection(&consumer->cs);
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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_consumer_waveapi_dtor(tsk_object_t * self)
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{
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tdav_consumer_waveapi_t *consumer = self;
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if(consumer){
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tsk_size_t i;
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/* stop */
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if(consumer->started){
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tdav_consumer_waveapi_stop(self);
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}
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/* deinit base */
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tdav_consumer_audio_deinit(TDAV_CONSUMER_AUDIO(consumer));
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/* deinit self */
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for(i = 0; i< sizeof(consumer->hWaveHeaders)/sizeof(LPWAVEHDR); i++){
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free_wavehdr(consumer, i);
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}
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if(consumer->hWaveOut){
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waveOutClose(consumer->hWaveOut);
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}
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if(consumer->events[0]){
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CloseHandle(consumer->events[0]);
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}
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if(consumer->events[1]){
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CloseHandle(consumer->events[1]);
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}
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DeleteCriticalSection(&consumer->cs);
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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_consumer_waveapi_def_s =
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{
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sizeof(tdav_consumer_waveapi_t),
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tdav_consumer_waveapi_ctor,
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tdav_consumer_waveapi_dtor,
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tdav_consumer_audio_cmp,
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};
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/* plugin definition*/
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static const tmedia_consumer_plugin_def_t tdav_consumer_waveapi_plugin_def_s =
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{
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&tdav_consumer_waveapi_def_s,
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tmedia_audio,
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"Microsoft WaveAPI consumer",
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tdav_consumer_waveapi_set,
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tdav_consumer_waveapi_prepare,
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tdav_consumer_waveapi_start,
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tdav_consumer_waveapi_consume,
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tdav_consumer_waveapi_pause,
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tdav_consumer_waveapi_stop
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};
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const tmedia_consumer_plugin_def_t *tdav_consumer_waveapi_plugin_def_t = &tdav_consumer_waveapi_plugin_def_s;
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#endif /* HAVE_WAVE_API */ |