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95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
#ifndef OPENSHOT_DECKLINK_READER_H
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#define OPENSHOT_DECKLINK_READER_H
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/**
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* \file
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* \brief Header file for ImageReader class
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* \author Copyright (c) 2011 Jonathan Thomas
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*/
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#include "FileReaderBase.h"
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#include <cmath>
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#include <ctime>
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#include <fcntl.h>
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#include <iostream>
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#include <omp.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <tr1/memory>
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#include <unistd.h>
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#include "Magick++.h"
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#include "Cache.h"
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#include "Exceptions.h"
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#include "Frame.h"
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#include "DecklinkInput.h"
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using namespace std;
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namespace openshot
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{
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/**
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* \brief This class uses the Blackmagic Decklink libraries, to open video streams on Blackmagic devices, and return
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* openshot::Frame objects containing the image and audio data.
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*/
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class DecklinkReader : public FileReaderBase
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{
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private:
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bool is_open;
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IDeckLink *deckLink;
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IDeckLinkInput *deckLinkInput;
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IDeckLinkDisplayModeIterator *displayModeIterator;
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IDeckLinkOutput *m_deckLinkOutput;
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IDeckLinkVideoConversion *m_deckLinkConverter;
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pthread_mutex_t sleepMutex;
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pthread_cond_t sleepCond;
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IDeckLinkIterator *deckLinkIterator;
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DeckLinkInputDelegate *delegate;
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IDeckLinkDisplayMode *displayMode;
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BMDVideoInputFlags inputFlags;
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BMDDisplayMode selectedDisplayMode;
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BMDPixelFormat pixelFormat;
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int displayModeCount;
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int exitStatus;
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int ch;
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bool foundDisplayMode;
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HRESULT result;
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int g_videoModeIndex;
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int g_audioChannels;
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int g_audioSampleDepth;
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int g_maxFrames;
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int device;
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BMDTimeValue frameRateDuration, frameRateScale;
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const char *displayModeName;
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public:
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/// Constructor for DecklinkReader. This automatically opens the device and loads
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/// the first second of video, or it throws one of the following exceptions.
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DecklinkReader(int device, int video_mode, int pixel_format, int channels, int sample_depth) throw(DecklinkError);
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~DecklinkReader(); /// Destructor
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/// Close the device and video stream
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void Close();
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/// Get an openshot::Frame object for a specific frame number of this reader. Frame number
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/// is ignored, since it always gets the latest LIVE frame.
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///
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/// @returns The requested frame (containing the image)
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/// @param[requested_frame] number The frame number that is requested.
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tr1::shared_ptr<Frame> GetFrame(int requested_frame) throw(ReaderClosed);
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unsigned long GetCurrentFrameNumber();
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/// Open device and video stream - which is called by the constructor automatically
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void Open() throw(DecklinkError);
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};
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}
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#endif
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