390 lines
10 KiB
C
390 lines
10 KiB
C
/*
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* Copyright (C) 2009 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_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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* @date Created: Sat Nov 8 16:54:58 2009 mdiop
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*/
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#include "tinydav/audio/waveapi/tdav_producer_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_PRODUCER_ERROR_BUFF_COUNT 0xFF
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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_PRODUCER_ERROR_BUFF_COUNT];
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waveInGetErrorTextA(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_producer_waveapi_t* producer, tsk_size_t index)
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{
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if(!producer || index >= sizeof(producer->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(producer->hWaveHeaders[index]->lpData);
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TSK_FREE(producer->hWaveHeaders[index]);
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return 0;
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}
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static int create_wavehdr(tdav_producer_waveapi_t* producer, tsk_size_t index)
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{
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if(!producer || index >= sizeof(producer->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(producer->hWaveHeaders[index]){
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free_wavehdr(producer, index);
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}
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producer->hWaveHeaders[index] = tsk_calloc(1, sizeof(WAVEHDR));
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producer->hWaveHeaders[index]->lpData = tsk_calloc(1, producer->bytes_per_notif);
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producer->hWaveHeaders[index]->dwBufferLength = producer->bytes_per_notif;
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producer->hWaveHeaders[index]->dwFlags = WHDR_BEGINLOOP | WHDR_ENDLOOP;
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producer->hWaveHeaders[index]->dwLoops = 0x01;
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producer->hWaveHeaders[index]->dwUser = index;
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return 0;
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}
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static int add_wavehdr(tdav_producer_waveapi_t* producer, tsk_size_t index)
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{
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MMRESULT result;
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if(!producer || !producer->hWaveHeaders[index] || !producer->hWaveIn){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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result = waveInPrepareHeader(producer->hWaveIn, producer->hWaveHeaders[index], sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveInPrepareHeader");
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return -2;
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}
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result = waveInAddBuffer(producer->hWaveIn, producer->hWaveHeaders[index], sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveInWrite");
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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 record_wavehdr(tdav_producer_waveapi_t* producer, LPWAVEHDR lpHdr)
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{
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MMRESULT result;
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if(!producer || !lpHdr || !producer->hWaveIn){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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//
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// Alert the session that there is new data to send over the network
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//
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if(TMEDIA_PRODUCER(producer)->callback){
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TMEDIA_PRODUCER(producer)->callback(TMEDIA_PRODUCER(producer)->callback_data, lpHdr->lpData, (lpHdr->dwBytesRecorded/2));
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}
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if(!producer->started){
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return 0;
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}
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result = waveInUnprepareHeader(producer->hWaveIn, lpHdr, sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveInUnprepareHeader");
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return -2;
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}
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result = waveInPrepareHeader(producer->hWaveIn, lpHdr, sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveInPrepareHeader");
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return -3;
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}
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result = waveInAddBuffer(producer->hWaveIn, lpHdr, sizeof(WAVEHDR));
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveInWrite");
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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 *__record_thread(void *param)
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{
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tdav_producer_waveapi_t* producer = (tdav_producer_waveapi_t*)param;
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DWORD dwEvent;
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tsk_size_t i;
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TSK_DEBUG_INFO("__record_thread -- START");
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SetPriorityClass(GetCurrentThread(), REALTIME_PRIORITY_CLASS);
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for(;;){
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dwEvent = WaitForMultipleObjects(2, producer->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(&producer->cs);
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for(i = 0; i< sizeof(producer->hWaveHeaders)/sizeof(LPWAVEHDR); i++){
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if(producer->hWaveHeaders[i] && (producer->hWaveHeaders[i]->dwFlags & WHDR_DONE)){
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record_wavehdr(producer, producer->hWaveHeaders[i]);
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}
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}
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LeaveCriticalSection(&producer->cs);
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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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/* ============ Media Producer Interface ================= */
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int tdav_producer_waveapi_prepare(tmedia_producer_t* self, const tmedia_codec_t* codec)
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{
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tdav_producer_waveapi_t* producer = (tdav_producer_waveapi_t*)self;
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tsk_size_t i;
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if(!producer || !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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TDAV_PRODUCER_AUDIO(producer)->channels = codec->plugin->audio.channels;
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TDAV_PRODUCER_AUDIO(producer)->rate = codec->plugin->rate;
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/* codec should have ptime */
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/* Format */
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ZeroMemory(&producer->wfx, sizeof(WAVEFORMATEX));
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producer->wfx.wFormatTag = WAVE_FORMAT_PCM;
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producer->wfx.nChannels = TDAV_PRODUCER_AUDIO(producer)->channels;
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producer->wfx.nSamplesPerSec = TDAV_PRODUCER_AUDIO(producer)->rate;
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producer->wfx.wBitsPerSample = TDAV_PRODUCER_AUDIO(producer)->bits_per_sample;
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producer->wfx.nBlockAlign = (producer->wfx.nChannels * producer->wfx.wBitsPerSample/8);
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producer->wfx.nAvgBytesPerSec = (producer->wfx.nSamplesPerSec * producer->wfx.nBlockAlign);
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/* Average bytes (count) for each notification */
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producer->bytes_per_notif = ((producer->wfx.nAvgBytesPerSec * TDAV_PRODUCER_AUDIO(producer)->ptime)/1000);
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/* create buffers */
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for(i = 0; i< sizeof(producer->hWaveHeaders)/sizeof(LPWAVEHDR); i++){
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create_wavehdr(producer, i);
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}
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return 0;
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}
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int tdav_producer_waveapi_start(tmedia_producer_t* self)
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{
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tdav_producer_waveapi_t* producer = (tdav_producer_waveapi_t*)self;
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MMRESULT result;
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tsk_size_t i;
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if(!producer){
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TSK_DEBUG_ERROR("Invalid parameter");
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return -1;
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}
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if(producer->started || producer->hWaveIn){
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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(!producer->events[0]){
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producer->events[0] = CreateEvent(NULL, FALSE, FALSE, NULL);
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}
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if(!producer->events[1]){
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producer->events[1] = CreateEvent(NULL, FALSE, FALSE, NULL);
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}
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/* open */
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result = waveInOpen((HWAVEIN *)&producer->hWaveIn, /*WAVE_MAPPER*/0, &producer->wfx, (DWORD)producer->events[0], (DWORD_PTR)producer, CALLBACK_EVENT);
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveInOpen");
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return -2;
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}
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/* start */
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result = waveInStart(producer->hWaveIn);
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if(result != MMSYSERR_NOERROR){
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print_last_error(result, "waveInStart");
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return -2;
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}
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/* start thread */
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tsk_thread_create(&producer->tid[0], __record_thread, producer);
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/* write */
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for(i = 0; i< sizeof(producer->hWaveHeaders)/sizeof(LPWAVEHDR); i++){
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add_wavehdr(producer, i);
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}
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producer->started = tsk_true;
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return 0;
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}
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int tdav_producer_waveapi_pause(tmedia_producer_t* self)
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{
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tdav_producer_waveapi_t* producer = (tdav_producer_waveapi_t*)self;
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if(!producer){
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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_producer_waveapi_stop(tmedia_producer_t* self)
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{
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tdav_producer_waveapi_t* producer = (tdav_producer_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(!producer->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(producer->tid[0]){
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SetEvent(producer->events[1]);
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tsk_thread_join(&(producer->tid[0]));
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}
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/* should be done here */
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producer->started = tsk_false;
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if(producer->hWaveIn && (((result = waveInReset(producer->hWaveIn)) != MMSYSERR_NOERROR) || ((result = waveInClose(producer->hWaveIn)) != MMSYSERR_NOERROR))){
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print_last_error(result, "waveInReset/waveInClose");
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}
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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_waveapi_ctor(tsk_object_t * self, va_list * app)
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{
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tdav_producer_waveapi_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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InitializeCriticalSection(&producer->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_producer_waveapi_dtor(tsk_object_t * self)
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{
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tdav_producer_waveapi_t *producer = self;
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if(producer){
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tsk_size_t i;
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/* stop */
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if(producer->started){
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tdav_producer_waveapi_stop(self);
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}
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/* deinit base */
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tdav_producer_audio_deinit(TDAV_PRODUCER_AUDIO(producer));
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/* deinit self */
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for(i = 0; i< sizeof(producer->hWaveHeaders)/sizeof(LPWAVEHDR); i++){
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free_wavehdr(producer, i);
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}
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if(producer->hWaveIn){
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waveInClose(producer->hWaveIn);
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}
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if(producer->events[0]){
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CloseHandle(producer->events[0]);
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}
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if(producer->events[1]){
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CloseHandle(producer->events[1]);
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}
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DeleteCriticalSection(&producer->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_producer_waveapi_def_s =
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{
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sizeof(tdav_producer_waveapi_t),
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tdav_producer_waveapi_ctor,
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tdav_producer_waveapi_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 tmedia_producer_waveapi_plugin_def_s =
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{
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&tdav_producer_waveapi_def_s,
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tmedia_audio,
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"Microsoft WaveAPI producer",
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tdav_producer_waveapi_prepare,
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tdav_producer_waveapi_start,
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tdav_producer_waveapi_pause,
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tdav_producer_waveapi_stop
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};
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const tmedia_producer_plugin_def_t *tmedia_producer_waveapi_plugin_def_t = &tmedia_producer_waveapi_plugin_def_s;
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#endif /* HAVE_WAVE_API */ |