使用信号量控制线程执行顺序，进而控制不同视频流的解码顺序-白红宇

使用信号量控制线程执行顺序，进而控制不同视频流的解码顺序

阅读量：4224 次

发布时间：2019-05-26

本文共 9658 字，大约阅读时间需要 32 分钟。

// 使用Window下多线程API以及信号量来控制视频的解码顺序

#include 
   
    #include "QueryPerformance.h" // time counter#include "windows.h"#include 
    
     #include 
     
      #include "cudaDecodeInterface.h"#pragma comment(lib,"cudaDecode.lib")typedef unsigned (WINAPI *PBEGINTHREADEX_THREADFUNC)	(LPVOID lpThreadParameter);typedef unsigned *PBEGINTHREADEX_THREADID;HANDLE hand_cuda[6]  = {NULL, NULL, NULL, NULL,NULL,NULL};bool cuda_decodeEnd[6] = {false, false, false, false,false,false};static int counter[6] = {0, 0, 0, 0,0,0};FILE *fp0 = fopen("../decodePic/cudadecode0.yuv", "wb");FILE *fp1 = fopen("../decodePic/cudadecode1.yuv", "wb");FILE *fp2 = fopen("../decodePic/cudadecode2.yuv", "wb");FILE *fp3 = fopen("../decodePic/cudadecode3.yuv", "wb");FILE *fp4 = fopen("../decodePic/cudadecode4.yuv", "wb");FILE *fp5 = fopen("../decodePic/cudadecode5.yuv", "wb");// front claimint CudaDecodeNotify0(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof);int CudaDecodeNotify1(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof);int CudaDecodeNotify2(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof);int CudaDecodeNotify3(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof);int CudaDecodeNotify4(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof);int CudaDecodeNotify5(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof);DWORD WINAPI OnCuda0();DWORD WINAPI OnCuda1();DWORD WINAPI OnCuda2();DWORD WINAPI OnCuda3();DWORD WINAPI OnCuda4();DWORD WINAPI OnCuda5();HANDLE handle_video[6] = {NULL, NULL, NULL, NULL,NULL,NULL};HANDLE hand_semaphore[6] = {NULL, NULL, NULL, NULL,NULL,NULL};int main(int argc, char* argv[]){	printf("Cuda Decoder......\n");	// Initialzie semaphore	hand_semaphore[0] = CreateSemaphore(NULL, 1, 1, NULL);	hand_semaphore[1] = CreateSemaphore(NULL, 0, 1, NULL);	hand_semaphore[2] = CreateSemaphore(NULL, 0, 1, NULL);	hand_semaphore[3] = CreateSemaphore(NULL, 0, 1, NULL);	hand_semaphore[4] = CreateSemaphore(NULL, 0, 1, NULL);	hand_semaphore[5] = CreateSemaphore(NULL, 0, 1, NULL);	// Initialize hand	//	DWORD begin_time = GetTickCount64();	CStopwatch stopwatch;	WaitForSingleObject(hand_semaphore[0], INFINITE);	handle_video[0] = (HANDLE)_beginthreadex(NULL, 0, (PBEGINTHREADEX_THREADFUNC)OnCuda0, NULL, 0, NULL);	WaitForSingleObject(hand_semaphore[1], INFINITE);	handle_video[1] = (HANDLE)_beginthreadex(NULL, 0, (PBEGINTHREADEX_THREADFUNC)OnCuda1, NULL, 0, NULL);	WaitForSingleObject(hand_semaphore[2], INFINITE);	handle_video[2] = (HANDLE)_beginthreadex(NULL, 0, (PBEGINTHREADEX_THREADFUNC)OnCuda2, NULL, 0, NULL);	WaitForSingleObject(hand_semaphore[3], INFINITE);	handle_video[3] = (HANDLE)_beginthreadex(NULL, 0, (PBEGINTHREADEX_THREADFUNC)OnCuda3, NULL, 0, NULL);	WaitForSingleObject(hand_semaphore[4], INFINITE);	handle_video[4] = (HANDLE)_beginthreadex(NULL, 0, (PBEGINTHREADEX_THREADFUNC)OnCuda4, NULL, 0, NULL);	WaitForSingleObject(hand_semaphore[5], INFINITE);	handle_video[5] = (HANDLE)_beginthreadex(NULL, 0, (PBEGINTHREADEX_THREADFUNC)OnCuda5, NULL, 0, NULL);	WaitForMultipleObjects(6, handle_video, TRUE, INFINITE);	__int64 qwElapsedTime = stopwatch.Now();	printf("总用时为：%d
      
       \n", qwElapsedTime);	//	DWORD end_time = GetTickCount64();	//	printf("总用时为：%d
       
        \n", end_time - begin_time);	for (int i=0; i<6; i++)	{		CloseHandle(handle_video[i]);	}	fflush(stdin);	system("pause");	return 0;}// OnCuda函数DWORD WINAPI OnCuda0(){	bool nstate = Cuda_SupportDecode();	hand_cuda[0] = Cuda_CreateDecoder();	DWORD StartTime = 0; // 起始的时间	DWORD ElapsedTime = 0; //消耗的时间	if( Cuda_OpenFile(hand_cuda[0], "../data/720P/video0.m2v", CudaDecodeNotify0)==1 ) 	{		StartTime = GetTickCount();		printf("文件<1>打开成功\n");	}	else		printf("文件<1>打开失败\n");	while ( !cuda_decodeEnd[0] )	{		Sleep(1);	}	ElapsedTime = GetTickCount() - StartTime;	//	printf("文件<1>解码完成   nTime1 = %d
        
         \n", ElapsedTime); Cuda_DestroyDecoder(hand_cuda[0]); return 0;}DWORD WINAPI OnCuda1(){ bool nstate = Cuda_SupportDecode(); hand_cuda[1] = Cuda_CreateDecoder(); DWORD StartTime = 0; // 起始的时间 DWORD ElapsedTime = 0; //消耗的时间 if( Cuda_OpenFile(hand_cuda[1], "../data/720P/video1.m2v", CudaDecodeNotify1)==1 ) { StartTime = GetTickCount(); printf("文件<2>打开成功\n"); } else printf("文件<2>打开失败\n"); while ( !cuda_decodeEnd[1] ) { Sleep(1); } ElapsedTime = GetTickCount() - StartTime; // printf("文件<2>解码完成 nTime2 = %d
         
          \n", ElapsedTime); Cuda_DestroyDecoder(hand_cuda[1]); return 0;}DWORD WINAPI OnCuda2(){ bool nstate = Cuda_SupportDecode(); hand_cuda[2] = Cuda_CreateDecoder(); DWORD StartTime = 0; // 起始的时间 DWORD ElapsedTime = 0; //消耗的时间 if( Cuda_OpenFile(hand_cuda[2], "../data/720P/video2.m2v", CudaDecodeNotify2)==1 ) { StartTime = GetTickCount(); printf("文件<3>打开成功\n"); } else printf("文件<3>打开失败\n"); while ( !cuda_decodeEnd[2] ) { Sleep(1); } ElapsedTime = GetTickCount() - StartTime; // printf("文件<3>解码完成 nTime3 = %d
          
           \n", ElapsedTime); Cuda_DestroyDecoder(hand_cuda[2]); return 0;}DWORD WINAPI OnCuda3(){ bool nstate = Cuda_SupportDecode(); hand_cuda[3] = Cuda_CreateDecoder(); DWORD StartTime = 0; // 起始的时间 DWORD ElapsedTime = 0; //消耗的时间 if( Cuda_OpenFile(hand_cuda[3], "../data/720P/video3.m2v", CudaDecodeNotify3)==1 ) { StartTime = GetTickCount(); printf("文件<4>打开成功\n"); } else printf("文件<4>打开失败\n"); while ( !cuda_decodeEnd[3] ) { Sleep(1); } ElapsedTime = GetTickCount() - StartTime; // printf("文件<4>解码完成 nTime4 = %d
           
            \n", ElapsedTime); Cuda_DestroyDecoder(hand_cuda[3]); return 0;}DWORD WINAPI OnCuda4(){ bool nstate = Cuda_SupportDecode(); hand_cuda[4] = Cuda_CreateDecoder(); DWORD StartTime = 0; // 起始的时间 DWORD ElapsedTime = 0; //消耗的时间 if( Cuda_OpenFile(hand_cuda[4], "../data/720P/video4.m2v", CudaDecodeNotify4)==1 ) { StartTime = GetTickCount(); printf("文件<1>打开成功\n"); } else printf("文件<1>打开失败\n"); while ( !cuda_decodeEnd[4] ) { Sleep(1); } ElapsedTime = GetTickCount() - StartTime; // printf("文件<1>解码完成 nTime1 = %d
            
             \n", ElapsedTime); Cuda_DestroyDecoder(hand_cuda[4]); return 0;}DWORD WINAPI OnCuda5(){ bool nstate = Cuda_SupportDecode(); hand_cuda[5] = Cuda_CreateDecoder(); DWORD StartTime = 0; // 起始的时间 DWORD ElapsedTime = 0; //消耗的时间 if( Cuda_OpenFile(hand_cuda[5], "../data/720P/video5.m2v", CudaDecodeNotify5)==1 ) { StartTime = GetTickCount(); printf("文件<1>打开成功\n"); } else printf("文件<1>打开失败\n"); while ( !cuda_decodeEnd[5] ) { Sleep(1); } ElapsedTime = GetTickCount() - StartTime; // printf("文件<1>解码完成 nTime1 = %d
             
              \n", ElapsedTime); Cuda_DestroyDecoder(hand_cuda[5]); return 0;}// cudaDecodeNotify函数，拷贝解码后的数据到硬盘int CudaDecodeNotify0(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof){ counter[0]++; // fwrite(pDecodeData,1,nDataSize,fp0); if(nEof) { OutputDebugString("thread 1 读包结束！！！\n"); printf("====== thread 1 读包结束！！！\n"); // fclose(fp0); cuda_decodeEnd[0] = true; }#if 0 printf(" \n------ video 1：%d ------\n", counter[0]); FILE *file = fopen("../order.txt", "at"); fprintf(file, " ------ 视频1：%d ------\n", counter[0]); fclose(file);#endif ReleaseSemaphore(hand_semaphore[1], 1, NULL); Sleep(1); return 0;}int CudaDecodeNotify1(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof){ counter[1]++; // fwrite(pDecodeData,1,nDataSize,fp1); if(nEof) { OutputDebugString("thread 2 读包结束！！！\n"); printf("====== thread 2 读包结束！！！\n"); // fclose(fp4); cuda_decodeEnd[1] = true; }#if 0 printf(" \n------ video 2 : %d ------\n", counter[1]); FILE *file = fopen("../order_new.txt", "at"); fprintf(file, " ------ 视频2：%d ------\n", counter[1]); fclose(file);#endif ReleaseSemaphore(hand_semaphore[2], 1, NULL); Sleep(1); return 0;}int CudaDecodeNotify2(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof){ counter[2]++; // fwrite(pDecodeData,1,nDataSize,fp2); if(nEof) { OutputDebugString("thread 3 读包结束！！！\n"); printf("====== thread 3 读包结束！！！\n"); // fclose(fp4); cuda_decodeEnd[2] = true; }#if 0 printf(" \n------ video 3：%d ------\n", counter[2]); FILE *file = fopen("../order.txt", "at"); fprintf(file, " ------ 视频3：%d ------\n", counter[2]); fclose(file);#endif ReleaseSemaphore(hand_semaphore[3], 1, NULL); Sleep(1); return 0;}int CudaDecodeNotify3(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof){ counter[3]++; // fwrite(pDecodeData,1,nDataSize,fp3); if(nEof) { OutputDebugString("thread 4 读包结束！！！\n"); printf("====== thread 4 读包结束！！！\n"); // fclose(fp4); cuda_decodeEnd[3] = true; }#if 0 printf(" \n------ video 4 :%d ------\n\n", counter[3]); FILE *file = fopen("../order.txt", "at"); fprintf(file, " ------ 视频4：%d ------\n", counter[3]); fclose(file);#endif ReleaseSemaphore(hand_semaphore[4], 1, NULL); Sleep(1); return 0;}int CudaDecodeNotify4(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof){ counter[4]++; // fwrite(pDecodeData,1,nDataSize,fp0); if(nEof) { OutputDebugString("thread 5 读包结束！！！\n"); printf("====== thread 5 读包结束！！！\n"); // fclose(fp0); cuda_decodeEnd[4] = true; }#if 0 printf(" \n------ video 1：%d ------\n", counter[0]); FILE *file = fopen("../order.txt", "at"); fprintf(file, " ------ 视频1：%d ------\n", counter[0]); fclose(file);#endif ReleaseSemaphore(hand_semaphore[5], 1, NULL); Sleep(1); return 0;}int CudaDecodeNotify5(unsigned char* pDecodeData, int nDataSize, DWORD timestamp, int nEof){ counter[5]++; // fwrite(pDecodeData,1,nDataSize,fp0); if(nEof) { OutputDebugString("thread 6 读包结束！！！\n"); printf("====== thread 6 读包结束！！！\n"); // fclose(fp0); cuda_decodeEnd[5] = true; }#if 0 printf(" \n------ video 1：%d ------\n", counter[0]); FILE *file = fopen("../order.txt", "at"); fprintf(file, " ------ 视频1：%d ------\n", counter[0]); fclose(file);#endif ReleaseSemaphore(hand_semaphore[0], 1, NULL); Sleep(1); return 0;}