qt画中画播放

#include "ceewavideouseffmpeg.h" #define SFM_REFRESH_EVENT (SDL_USEREVENT + 1) #define SFM_END_EVENT (SDL_USEREVENT + 2) int sdl_thread_exit=0; int sdl_event_thread(void *opaque) { while (sdl_thread_exit==0) { SDL_Event event; event.type = SFM_REFRESH_EVENT; SDL_PushEvent(&event); SDL_Delay(50); } return 0; } CeewaVideoUseFFmpeg::CeewaVideoUseFFmpeg(QWidget *showView,QObject *parent) : QThread(parent) { m_showWidget = showView; playMode = 1; screen = NULL; screen_w = showView->width(); screen_h = showView->height(); isNeedReCreateScreen = true; renderer = NULL; mainVideoState = 0; myFirstDecoder = new CeewaVideoFFmpegDecoder("http://live.gslb.letv.com/gslb?stream_id=lb_movie_720p&tag=live&ext=m3u8&sign=live_tv&platid=10&splatid=1009&format=letv&expect=1",1);//http://live.gslb.letv.com/gslb?stream_id=lb_1080P_1080p3m&tag=live&ext=m3u8&sign=live_tv&platid=10&splatid=1009&format=letv&expect=1",this); mySecondDecoder = new CeewaVideoFFmpegDecoder("http://live.gslb.letv.com/gslb?stream_id=lb_1080P_1080p3m&tag=live&ext=m3u8&sign=live_tv&platid=10&splatid=1009&format=letv&expect=1",1);//http://live.gslb.letv.com/gslb?stream_id=lb_movie_720p&tag=live&ext=m3u8&sign=live_tv&platid=10&splatid=1009&format=letv&expect=1",this); connect(myFirstDecoder,SIGNAL(notifyDecodeFrame(AVFrame*,uint8_t* )),this,SLOT(onNotifyLightView(AVFrame*,uint8_t*))); connect(mySecondDecoder,SIGNAL(notifyDecodeFrame(AVFrame*,uint8_t* )),this,SLOT(onNotifyHWView(AVFrame*,uint8_t*))); myFirstDecoder->play(); mySecondDecoder->play(); smallSrc.x = 0; smallSrc.y = 0; smallSrc.w = 0; smallSrc.h = 0; smallDesc.x = m_showWidget->width() - 16*30; smallDesc.y = m_showWidget->height() - 9*30; smallDesc.w = 16*30; smallDesc.h = 9*30; bmp = NULL; bmp_other = NULL; isStop = false; } void CeewaVideoUseFFmpeg::onNotifyNormalPlay(QString url) { playMode = 1; myFirstDecoder->play(url); emit openRealTimeVideoResult(true); } void CeewaVideoUseFFmpeg::onNotifyDoublePlay(QString url, QString otherUrl) { playMode = 2; myFirstDecoder->play(url); mySecondDecoder->play(otherUrl); emit openRealTimeVideoResult(true); } void CeewaVideoUseFFmpeg::onNotifyHWView(AVFrame* pFrameYUV,uint8_t* buffer) { m_bmp_other_lock.lockForWrite(); if(NULL == bmp_other) { bmp_other = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_IYUV, SDL_TEXTUREACCESS_STREAMING,mySecondDecoder->showWidth,mySecondDecoder->showHeight); } SDL_UpdateTexture(bmp_other, NULL, pFrameYUV->data[0], pFrameYUV->linesize[0]); m_bmp_other_lock.unlock(); av_free(pFrameYUV); av_free(buffer); } void CeewaVideoUseFFmpeg::onNotifyLightView(AVFrame* pFrameYUV,uint8_t* buffer) { m_bmp_lock.lockForWrite(); if(NULL == bmp) { bmp = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_IYUV, SDL_TEXTUREACCESS_STREAMING,myFirstDecoder->showWidth,myFirstDecoder->showHeight); //return; } SDL_UpdateTexture(bmp, NULL, pFrameYUV->data[0], pFrameYUV->linesize[0]); m_bmp_lock.unlock(); av_free(pFrameYUV); av_free(buffer); } bool CeewaVideoUseFFmpeg::init() { if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER)) { return false; } // if(TTF_Init() == -1) // { // logger->error("Init TTF failed."); // return false; // } } void CeewaVideoUseFFmpeg::stop() { myFirstDecoder->stop(); mySecondDecoder->stop(); } void CeewaVideoUseFFmpeg::reCreateScreen() { if(isNeedReCreateScreen) { screen = SDL_CreateWindowFrom(m_showWidget->winId()); isNeedReCreateScreen = false; renderer = SDL_CreateRenderer(screen, -1, SDL_RENDERER_SOFTWARE); } } void CeewaVideoUseFFmpeg::onShowWidgetResize() { smallDesc.x = m_showWidget->width() - 16*30; smallDesc.y = m_showWidget->height() - 9*30; smallDesc.w = 16*30; smallDesc.h = 9*30; } void CeewaVideoUseFFmpeg::run() { event = new SDL_Event(); video_tid = SDL_CreateThread(sdl_event_thread,NULL,NULL); //主线程做视频显示 使用SDL渲染 while(!isStop) { SDL_WaitEvent(event); if(event->type==SFM_REFRESH_EVENT) { SDL_RenderClear(renderer); //判断当前主屏幕为可见光还是红外 if(0 == mainVideoState) { if(NULL != bmp) { m_bmp_lock.lockForRead(); SDL_RenderCopy(renderer, bmp, NULL, NULL); m_bmp_lock.unlock(); } if(NULL != bmp_other) { m_bmp_other_lock.lockForRead(); SDL_RenderCopy(renderer, bmp_other, NULL, &smallDesc); m_bmp_other_lock.unlock(); } }else { if(NULL != bmp_other) { m_bmp_other_lock.lockForRead(); SDL_RenderCopy(renderer, bmp_other, NULL, NULL); m_bmp_other_lock.unlock(); } if(NULL != bmp) { m_bmp_lock.lockForRead(); SDL_RenderCopy(renderer, bmp, NULL, &smallDesc); m_bmp_lock.unlock(); } } SDL_RenderPresent(renderer); }else if(event->type==SFM_END_EVENT) { sdl_thread_exit=1; break; }else if (event->type == SDL_WINDOWEVENT) { SDL_GetWindowSize(screen, &screen_w, &screen_h); } else { continue; } } //数据回收 if(bmp) { SDL_DestroyTexture(bmp); } if(bmp_other) { SDL_DestroyTexture(bmp_other); } if(renderer) { SDL_DestroyRenderer(renderer); } } void CeewaVideoUseFFmpeg::showView() { if(0 == mainVideoState) { if(NULL != bmp) { m_bmp_lock.lockForRead(); SDL_RenderCopy(renderer, bmp, NULL, NULL); m_bmp_lock.unlock(); } if(NULL != bmp_other) { m_bmp_other_lock.lockForRead(); SDL_RenderCopy(renderer, bmp_other, NULL, &smallDesc); m_bmp_other_lock.unlock(); } }else { if(NULL != bmp_other) { m_bmp_other_lock.lockForRead(); SDL_RenderCopy(renderer, bmp_other, NULL, NULL); m_bmp_other_lock.unlock(); } if(NULL != bmp) { m_bmp_lock.lockForRead(); SDL_RenderCopy(renderer, bmp, NULL, &smallDesc); m_bmp_lock.unlock(); } } SDL_RenderPresent(renderer); } void CeewaVideoUseFFmpeg::onNotifyChangeVideoState() { if(playMode == 1) { return; } if(0 == mainVideoState) { mainVideoState = 1; }else { mainVideoState = 0; } }