Linux YUV播放器

#include <stdlib.h> #include <stdio.h> #include <glib/gprintf.h> #include <fcntl.h> #include <gtk/gtk.h> #include <SDL/SDL.h> #include <pthread.h> #include <gdk/gdkx.h> #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> char SDL_windowhack[32]; GtkWidget* MainWindow; void * PlayFileThread (void * data); typedef struct VideoState{ char szFileName[1024]; int iFPS;//帧率 int iSpeed;//速度 int iPlayState;//播放状态 int iFileSize; FILE *PlayFileCtrl ; GtkWidget* PlayScreen;//绘图区 SDL_Surface* pSDLScreen ; //SDL surface SDL_Overlay* pYUVoverlay ; // YUV SDL_Rect strPlayArea; //绘图区大小 pthread_t PlayThread; //播放线程 SDL_mutex* pMutex; //操作锁 }VideoControl,*PVideoControl; VideoControl strPlayControl; int InitialSDL(); void FileOpen( GtkWidget* widget, gpointer data ) { const gchar* strFileNameTmp = NULL; GtkWidget* SelectFile = NULL; if( strPlayControl.iPlayState > -1) { strPlayControl.iPlayState = -1; } SelectFile = gtk_file_selection_new("YUV File"); if(gtk_dialog_run(GTK_DIALOG(SelectFile)) == GTK_RESPONSE_OK) { ///获得文件名 strFileNameTmp = gtk_file_selection_get_filename( GTK_FILE_SELECTION(SelectFile) ); if (strFileNameTmp == NULL) { gtk_widget_destroy(SelectFile); return; } strcpy (strPlayControl.szFileName, strFileNameTmp); printf("%s\n",strPlayControl.szFileName); gtk_widget_destroy(SelectFile); //打开文件 strPlayControl.PlayFileCtrl = fopen( strPlayControl.szFileName, "rb"); if (!strPlayControl.PlayFileCtrl) { fprintf(stderr,"open file error"); return; } fseek(strPlayControl.PlayFileCtrl, 0, SEEK_END); strPlayControl.iFileSize = ftell( strPlayControl.PlayFileCtrl ); if( strPlayControl.iFileSize < 0) { printf("Fail to get file size");; return; } fseek(strPlayControl.PlayFileCtrl, 0, SEEK_SET); } return; } void PlayFile( GtkWidget* widget, gpointer data ) { int nRet; if(strPlayControl.PlayFileCtrl == NULL) { return; } while( strPlayControl.iPlayState != -2) { if(strPlayControl.iPlayState == 1) { return; } if(strPlayControl.iPlayState == 0) { strPlayControl.iPlayState = 1; return; } } nRet = pthread_create( &strPlayControl.PlayThread, NULL, PlayFileThread, (void*)(&strPlayControl) ); if(nRet != 0) { fprintf(stderr, " Create play thread fail \n"); return; } strPlayControl.iPlayState = 1; } void * PlayFileThread (void * data) { VideoControl *PlayControl = (VideoControl *)data; //文件操作指针 FILE *FileCtrl = PlayControl->PlayFileCtrl; //首数据 fseek(FileCtrl,0,SEEK_SET); //int FileSize = PlayControl->iFileSize; //显示区 SDL_Overlay* YUVoverlay = NULL; //绘图区 GtkWidget* ViewScreen =PlayControl->PlayScreen ; //帧率 int iSpeed; //分辨率 int Fpd = PlayControl->iFPS; //帧大小 int FrameSize ; //绘图区域 SDL_Rect ViewArea; //数据快 char FrameData[608256]; int DataSize; //绘图区域 ViewArea.x = 0; ViewArea.y = 0; //正的大小 switch(Fpd) { case 0: //QCIF FrameSize =176*144*3/2; ViewArea.w =176; ViewArea.h = 144; break; case 1: //CIF FrameSize = 352*288*3/2; ViewArea.w = 352; ViewArea.h = 288; break; case 2: //4CIF FrameSize =704*576*3/2; ViewArea.w = 704; ViewArea.h = 576; break; } // printf("%d\n",FrameSize); YUVoverlay = SDL_CreateYUVOverlay( ViewArea.w, ViewArea.h, SDL_IYUV_OVERLAY, strPlayControl.pSDLScreen ); while(1) { //播放状态 if(PlayControl->iPlayState == 1) { //显示区的大小改变，重新setVideoMode if( ViewArea.w != ViewScreen->allocation.width || ViewArea.h != ViewScreen->allocation.height) { ViewArea.w = ViewScreen->allocation.width; ViewArea.h = ViewScreen->allocation.height; PlayControl->pSDLScreen = SDL_SetVideoMode( ViewArea.w, ViewArea.h, 0, SDL_SWSURFACE|SDL_NOFRAME); } //播放速率 iSpeed = (int)(1000/PlayControl->iSpeed); //读取帧 DataSize = fread(FrameData,1, FrameSize, FileCtrl); //printf("%d\n",DataSize); if(DataSize == FrameSize) { //显示图像 SDL_LockSurface(PlayControl->pSDLScreen); SDL_LockYUVOverlay(YUVoverlay); memcpy(*(YUVoverlay->pixels),FrameData,FrameSize); SDL_UnlockYUVOverlay(YUVoverlay); SDL_UnlockSurface(PlayControl->pSDLScreen); SDL_DisplayYUVOverlay(YUVoverlay, &ViewArea); //控制帧率 SDL_Delay(iSpeed); } else { if(feof(FileCtrl)) { printf("文件结束\n"); PlayControl->iPlayState = 0; fseek(FileCtrl,0,0); } else { printf("文件读取错误\n"); PlayControl->iPlayState = -2; break; } } } //非播放状态 else { //停止状态,退出 if(PlayControl->iPlayState == -1) { PlayControl->iPlayState = -2; break; } //暂停状态，继续执行，等待他停止 } } fclose(FileCtrl); strPlayControl.PlayFileCtrl = NULL; SDL_FreeYUVOverlay(YUVoverlay); return NULL; } void Pause( GtkWidget* widget, gpointer data ) { if(strPlayControl.iPlayState == 1) { strPlayControl.iPlayState = 0; } } void StopPlay( GtkWidget* widget, gpointer data ) { strPlayControl.iPlayState = -1; } void ReplayFile( GtkWidget* widget, gpointer data ) { if(strPlayControl.iPlayState >= 0) { strPlayControl.iPlayState = 1; fseek(strPlayControl.PlayFileCtrl,0,SEEK_SET); } } void PlaySlow( GtkWidget* widget, gpointer data ) { if(strPlayControl.iSpeed > 5) { strPlayControl.iSpeed = (strPlayControl.iSpeed-5); } } void PlayFast( GtkWidget* widget, gpointer data ) { if(strPlayControl.iSpeed < 50) { strPlayControl.iSpeed = (strPlayControl.iSpeed+5); } } void FullScreen( GtkWidget* widget, gpointer data ) { gtk_window_fullscreen( GTK_WINDOW( MainWindow)); } void SetPixel( GtkWidget* widget, gpointer data ) { gchar* string; string = gtk_combo_box_get_active_text(GTK_COMBO_BOX(widget)); if (!strcasecmp(string, "QCIF")) { strPlayControl.iFPS = 0; } if (!strcasecmp(string, "CIF")) { strPlayControl.iFPS = 1; } if (!strcasecmp(string, "4CIF")) { strPlayControl.iFPS = 2; } return ; } gint delete_event( GtkWidget *widget, gpointer data ) { /* 如果你的 "delete_event" 信号处理函数返回 FALSE，GTK 会发出 "destroy" 信号。 * 返回 TRUE，你不希望关闭窗口。 * 当你想弹出“你确定要退出吗?”对话框时它很有用。*/ if(strPlayControl.iPlayState != -2) { strPlayControl.iPlayState = -1 ; } while( strPlayControl.iPlayState != -2) { SDL_Delay(10); } SDL_Quit(); g_print ("delete event occurred\n"); /* 改 TRUE 为 FALSE 程序会关闭。*/ gtk_main_quit (); return TRUE; } void InitialDrawArea(GtkWidget* PlayVideoArea) { gtk_