///////////////////////////////////////////////////////// FileName:	network_ctrl.cpp// Author:		b1gm0use// Project:		myvideo#include <iostream>#include <qwaitcondition.h>#include "network_ctrl.h"#include "capture_event.h"#include "network_ctrl_send_thread.h"#include "network_ctrl_recv_thread.h"#include "video.h"#include "audio.h"#include "network.h"#include "avi.h"using namespace std;///////////////////////////////////////////////////////// Public Functions///////////////////////////////////////////////////////// 構造函數// 其余三個為widget的子類要求的參數network_ctrl::network_ctrl( avi * avi_ptr_in, QWidget *parent, const char *name, int wFlags ) 		: QWidget( parent, name, wFlags ) // {{{{	verbose_output( 2, "create network_ctrl." );	ncrt = NULL;	ncst = NULL;	audio_send_buff_sema = NULL;	video_send_buff_sema = NULL;		ready_to_send_audio = NULL;	ready_to_send_video = NULL;	audio_buff[0] = audio_buff[1] = audio_buff[2] = NULL;	video_buff[0] = video_buff[1] = video_buff[2] = NULL;	video_frame = audio_frame = 0;	avi_ptr = avi_ptr_in;	term_sub_thread_sema = NULL;	term_sub_thread = false;} // }}}// 析構函數network_ctrl::~network_ctrl( void ) // {{{{	verbose_output( 2, "delete network_ctrl." );	if ( avi_ptr->net_mode == CONNECT && NULL != ncrt )	{		if ( ncrt->running() )		{			ncrt->terminate();		}		delete ncrt;	}	if ( avi_ptr->net_mode == LISTEN && NULL != ncst )	{		if ( ncst->running() )		{			ncst->terminate();		}		delete ncst;	}	delete audio_send_buff_sema;	delete video_send_buff_sema;	delete ready_to_send_audio;	delete ready_to_send_video;	delete [] audio_buff[0];	delete [] audio_buff[1];	delete [] audio_buff[2];	delete [] video_buff[0];	delete [] video_buff[1];	delete [] video_buff[2];	delete term_sub_thread_sema;} // }}}// 初始化函數int network_ctrl::init ( void ) // {{{{	verbose_output( 2, "init network_ctrl." );	audio_send_buff_sema = new QSemaphore( 1 );	video_send_buff_sema = new QSemaphore( 1 );		ready_to_send_audio = new QWaitCondition;	ready_to_send_video = new QWaitCondition;	BUFF * temp;	term_sub_thread_sema = new QSemaphore( 1 );	// 如果做做為LISTEN方，則要接收數據幀	// 開辟緩沖區	if ( avi_ptr->net_mode == LISTEN )	{		if ( avi_ptr->use_g723 )		{			for ( int i=0; i<3; i++ )			{				temp = new BUFF [ BUFF_SIZE_G723 * LENGTH ];				audio_buff[i] = new buff_t( temp, BUFF_SIZE_G723 * LENGTH );			}		}		else		{			for ( int i=0; i<3; i++ )			{				temp = new BUFF [ BUFF_SIZE_G711 * LENGTH ];				audio_buff[i] = new buff_t( temp, BUFF_SIZE_G711 * LENGTH );			}		}		for ( int i=0; i<3; i++ )		{			temp = new BUFF [ avi_ptr->video_opt.min_width * avi_ptr->video_opt.factor * avi_ptr->video_opt.min_height * avi_ptr->video_opt.factor * 3 ];			video_buff[i] = new buff_t( temp, avi_ptr->video_opt.min_width * avi_ptr->video_opt.factor * avi_ptr->video_opt.min_height * avi_ptr->video_opt.factor * 3 );		}	}	return SUCCEED;} // }}}void network_ctrl::stop_running ( void ) // {{{{	if ( avi_ptr->net_mode == LISTEN )	{		if ( NULL != ncst )		{			(*term_sub_thread_sema)++;			term_sub_thread = true;			(*term_sub_thread_sema)--;						cout << "before ncst wait" << endl;			if ( ncst->wait() )			{				cout << "before ncst wait" << endl;				delete ncst;				term_sub_thread = false;				cout << "kill ok" << endl;				ncst = NULL;				return;			}		}	}	else	{		if ( avi_ptr->net_mode == CONNECT )		{			if ( NULL != ncrt )			{				(*term_sub_thread_sema)++;				term_sub_thread = true;				(*term_sub_thread_sema)--;				cout << "before wait" << endl;				if ( ncrt->wait() )				{				cout << "after wait" << endl;					delete ncrt;					term_sub_thread = false;					ncrt = NULL;					cout << "kill ok" << endl;					return;				}			}		}	}	return;} // }}}void network_ctrl::begin_running ( void ) // {{{{		// 創建不同的連接線程	if ( avi_ptr->net_mode == LISTEN && NULL == ncst )	{		ncst = new network_ctrl_send_thread( avi_ptr, this );		ncst->start();	}	else	{		if ( avi_ptr->net_mode == CONNECT && NULL == ncrt )		{			ncrt = new network_ctrl_recv_thread( avi_ptr, this );			ncrt->start();		}	}	return;} // }}}bool network_ctrl::running ( void ) // {{{{	if ( avi_ptr->net_mode == LISTEN  )	{		if ( NULL != ncst )		{			return true;		}		else		{			return false;		}	}	else	{		if ( avi_ptr->net_mode == CONNECT )		{			if ( NULL != ncrt )			{				return true;			}			else			{				return false;			}		}	}	return false;} // }}}///////////////////////////////////////////////////////// Protected Functions///////////////////////////////////////////////////////// 內部函數，用于接收自定義的事件void network_ctrl::customEvent ( QCustomEvent * e ) // {{{{	verbose_output( 4, "network_ctrl change image event." );	// 判斷事件類型，是否正確	if ( e->type() == VIDEO_NET_SEND_EVENT )	{		// 視頻數據		capture_event * new_event = (capture_event *) e;		BUFF * temp = new_event->get_buff();		int size = new_event->get_size();		(*video_send_buff_sema)++;		memcpy( video_buff[video_frame]->buff_ptr, temp, size );		video_buff[video_frame]->buff_size = size;		(*video_send_buff_sema)--;		video_frame = (video_frame+1) % 3;		ready_to_send_video->wakeAll();	}	else	{		if ( e->type() == AUDIO_NET_SEND_EVENT )		{			// 音頻數據			capture_event * new_event = (capture_event*) e;			BUFF * temp = new_event->get_buff();			int size = new_event->get_size();			(*audio_send_buff_sema)++;			memcpy( audio_buff[audio_frame]->buff_ptr, temp, size );			audio_buff[audio_frame]->buff_size = size;			(*audio_send_buff_sema)--;			audio_frame = (audio_frame + 1) % 3;			ready_to_send_audio->wakeAll();		}		else		{			cerr << "Error! You shouldn't be here!" << endl;			cerr << "Error in network_ctrl." << endl;			exit( 1 );		}	}} // }}}