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LRESULT CVideoPlayerPropPage::OnInitSDL(WPARAM wParam,LPARAM lParam) { #ifdef _SDL_H // 初始化 需要很多時間 會影響ocx 界面的顯示 if( SDL_Init(SDL_INIT_EVERYTHING) == -1) { TTRACE("%s SDL_Init is failed \r\n", __FUNCTION__); } //用mfc窗口句柄創(chuàng)建一個sdl window m_pSDLWindow = SDL_CreateWindowFrom( (void *)(m_ImgWnd->m_hWnd) ); #endif return TRUE; } void CVideoPlayerPropPage::PlayMediaYuvData( ST_YUV_VIDEO_DATA &stYuvData ) { STRY; #ifdef _SDL_H m_nWidth = stYuvData.nWidth; m_nHeight = stYuvData.nHeight; //SDL Show YUV data if(m_nMagnification == 0) //正常播放 沒有縮放 { m_sdlSrcRect.h = stYuvData.nHeight; m_sdlSrcRect.w = stYuvData.nWidth; m_sdlSrcRect.x = 0; m_sdlSrcRect.y = 0; } SDL_Rect srcRT; srcRT.h = stYuvData.nHeight; srcRT.w = stYuvData.nWidth; srcRT.x = 0; srcRT.y = 0; SDL_Rect dstRT; dstRT.h = stYuvData.nHeight; dstRT.w = stYuvData.nWidth; dstRT.x = 0; dstRT.y = 0; int iW = stYuvData.nWidth; int iH = stYuvData.nHeight; char szPrint[256] = {0}; //計算yuv一行數(shù)據(jù)占的字節(jié)數(shù) int iPitch = iW*SDL_BYTESPERPIXEL(SDL_PIXELFORMAT_YV12); int iWidth = 0; int iHeight = 0; SDL_GetWindowSize( m_pSDLWindow, &iWidth, &iHeight ); dstRT.h = iHeight; dstRT.w = iWidth; if(m_pSDLRender == NULL) { int nDriversCount = SDL_GetNumRenderDrivers(); //創(chuàng)建渲染器，第二個參數(shù)為選用的畫圖驅(qū)動，0代表d3d m_pSDLRender = SDL_CreateRenderer( m_pSDLWindow, 0, SDL_RENDERER_ACCELERATED ); if(m_pSDLRender == NULL) { TTRACE("%s SDL_GetError() =%s ",__FUNCTION__,SDL_GetError()); } SDL_RendererInfo info; SDL_GetRendererInfo(m_pSDLRender, &info); } //創(chuàng)建紋理 if(m_pSDLTexture == NULL) { m_pSDLTexture = SDL_CreateTexture( m_pSDLRender,SDL_PIXELFORMAT_YV12, SDL_TEXTUREACCESS_STREAMING, iW, iH ); } int nRet = FALSE; nRet = SDL_UpdateYUVTexture(m_pSDLTexture,&srcRT,stYuvData.pData[0],stYuvData.nLineSize[0],\ stYuvData.pData[1],stYuvData.nLineSize[1],stYuvData.pData[2],stYuvData.nLineSize[2]); //nRet = SDL_UpdateTexture( m_pSDLTexture, &srcRT, stYuvData.pYuvbuf, iPitch ); nRet = SDL_RenderClear( m_pSDLRender ); //if( !m_bIsSpecilReToShow )//不是指定區(qū)域顯示 { if(m_bIsZoom) { m_bIsZoom = FALSE; if(m_nMagnification > m_nOldMagnification) { if(m_nMagnification < stYuvData.nWidth) { m_sdlSrcRect.x += m_nMagnification; } if(m_nMagnification < stYuvData.nHeight ) { m_sdlSrcRect.y += m_nMagnification; } if( (m_nMagnification*2 + m_sdlSrcRect.x ) < m_sdlSrcRect.w ) { m_sdlSrcRect.w -= m_nMagnification; m_sdlSrcRect.w -= m_nMagnification; } if( (m_nMagnification*2 + m_sdlSrcRect.y ) < m_sdlSrcRect.h ) { m_sdlSrcRect.h -= m_nMagnification; m_sdlSrcRect.h -= m_nMagnification; } //SetBrightness(stYuvData.pYuvbuf,m_nWidth,m_nHeight,g_nBrightness); } else { if(m_nMagnification < stYuvData.nWidth) { m_sdlSrcRect.x -= m_nMagnification; } if(m_nMagnification < stYuvData.nHeight ) { m_sdlSrcRect.y -= m_nMagnification; } // if( (m_nMagnification + m_sdlSrcRect.x + 100) < m_sdlSrcRect.w ) { m_sdlSrcRect.w += m_nMagnification; m_sdlSrcRect.w += m_nMagnification; } // if( (m_nMagnification + m_sdlSrcRect.y + 100) < m_sdlSrcRect.h ) { m_sdlSrcRect.h += m_nMagnification; m_sdlSrcRect.h += m_nMagnification; } } m_nOldMagnification = m_nMagnification; /* // if( (m_nMagnification + m_sdlSrcRect.x + 100) < m_sdlSrcRect.w ) { srcRT.w -= m_nMagnification; srcRT.w -= m_nMagnification; m_sdlSrcRect.w = srcRT.w; } // if( (m_nMagnification + m_sdlSrcRect.y + 100) < m_sdlSrcRect.h ) { srcRT.h -= m_nMagnification; srcRT.h -= m_nMagnification; m_sdlSrcRect.h = srcRT.h; } */ m_rectCurZoom.left = m_sdlSrcRect.x; m_rectCurZoom.top = m_sdlSrcRect.y; m_rectCurZoom.right = m_rectCurZoom.left + m_sdlSrcRect.w; m_rectCurZoom.bottom = m_rectCurZoom.top + m_sdlSrcRect.h; } } //else //指定區(qū)域顯示 { /* m_sdlSrcRect.x = m_rectCurZoom.left; m_sdlSrcRect.y = m_rectCurZoom.right; m_sdlSrcRect.w = m_rectCurZoom.Width(); m_sdlSrcRect.h = m_rectCurZoom.Height(); */ } SDL_RenderCopy( m_pSDLRender, m_pSDLTexture, &m_sdlSrcRect, &dstRT ); // SDL_RenderCopy( m_pSDLRender, m_pSDLTexture, &sdlRT, &dstRT ); SDL_RenderPresent( m_pSDLRender ); #endif return; SCATCH; return; } |
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