void Player::StartRunning(int videomode) { IDeckLinkDisplayMode *videoDisplayMode = NULL; unsigned long audioSamplesPerFrame; // Get the display mode for 1080i 59.95 videoDisplayMode = GetDisplayModeByIndex(videomode); if (!videoDisplayMode) return; m_frameWidth = videoDisplayMode->GetWidth(); m_frameHeight = videoDisplayMode->GetHeight(); videoDisplayMode->GetFrameRate(&m_frameDuration, &m_frameTimescale); // Set the video output mode if (m_deckLinkOutput->EnableVideoOutput(videoDisplayMode->GetDisplayMode(), bmdVideoOutputFlagDefault) != S_OK) { fprintf(stderr, "Failed to enable video output\n"); return; } // Set the audio output mode if (m_deckLinkOutput->EnableAudioOutput(bmdAudioSampleRate48kHz, m_audioSampleDepth, audio_st->codec->channels, bmdAudioOutputStreamTimestamped) != S_OK) { fprintf(stderr, "Failed to enable audio output\n"); return; } for (unsigned i = 0; i < 10; i++) ScheduleNextFrame(true); // Begin audio preroll. This will begin calling our audio callback, which will start the DeckLink output stream. // m_audioBufferOffset = 0; if (m_deckLinkOutput->BeginAudioPreroll() != S_OK) { fprintf(stderr, "Failed to begin audio preroll\n"); return; } m_running = true; return; }
void BMDOutputDelegate::StartRunning () { IDeckLinkDisplayMode* videoDisplayMode = NULL; // Get the display mode for 1080i 59.95 - mode 6 // Changed to NTSC 23.98 - JB 20110215 videoDisplayMode = GetDisplayModeByIndex(1); if (!videoDisplayMode) return; m_frameWidth = videoDisplayMode->GetWidth(); m_frameHeight = videoDisplayMode->GetHeight(); videoDisplayMode->GetFrameRate(&m_frameDuration, &m_frameTimescale); // Calculate the number of frames per second, rounded up to the nearest integer. For example, for NTSC (29.97 FPS), framesPerSecond == 30. m_framesPerSecond = (unsigned long)((m_frameTimescale + (m_frameDuration-1)) / m_frameDuration); QImage image(m_frameWidth,m_frameHeight, QImage::Format_ARGB32); image.fill(Qt::green); //m_frame = VideoFramePtr(new VideoFrame(image, 1000/30)); HRESULT res; // Set the video output mode if (m_deckLinkOutput->EnableVideoOutput(videoDisplayMode->GetDisplayMode(), bmdVideoOutputFlagDefault) != S_OK) { //fprintf(stderr, "Failed to enable video output\n"); qDebug() << "BMDOutputDelegate::StartRunning(): Failed to EnableVideoOutput()"; goto bail; } res = m_deckLinkOutput->CreateVideoFrame( m_frameWidth, m_frameHeight, m_frameWidth * 4, bmdFormat8BitBGRA, bmdFrameFlagDefault, &m_rgbFrame); if(res != S_OK) { qDebug() << "BMDOutputDelegate::StartRunning: Error creating RGB frame, res:"<<res; goto bail; } res = m_deckLinkOutput->CreateVideoFrame( m_frameWidth, m_frameHeight, m_frameWidth * 2, bmdFormat8BitYUV, bmdFrameFlagDefault, &m_yuvFrame); if(res != S_OK) { qDebug() << "BMDOutputDelegate::StartRunning: Error creating YUV frame, res:"<<res; goto bail; } // // Generate a frame of black // if (m_deckLinkOutput->CreateVideoFrame(m_frameWidth, m_frameHeight, m_frameWidth*2, bmdFormat8BitYUV, bmdFrameFlagDefault, &m_videoFrameBlack) != S_OK) // { // fprintf(stderr, "Failed to create video frame\n"); // goto bail; // } // FillBlack(m_videoFrameBlack); // // // Generate a frame of colour bars // if (m_deckLinkOutput->CreateVideoFrame(m_frameWidth, m_frameHeight, m_frameWidth*2, bmdFormat8BitYUV, bmdFrameFlagDefault, &m_videoFrameBars) != S_OK) // { // fprintf(stderr, "Failed to create video frame\n"); // goto bail; // } // FillColourBars(m_videoFrameBars); // Begin video preroll by scheduling a second of frames in hardware m_totalFramesScheduled = 0; for (unsigned i = 0; i < m_framesPerSecond; i++) { PrepareFrame(); ScheduleNextFrame(true); } // Args: startTime, timeScale, playback speed (1.0 = normal) m_deckLinkOutput->StartScheduledPlayback(0, 100, 1.0); m_running = true; return; bail: // *** Error-handling code. Cleanup any resources that were allocated. *** // StopRunning(); }