DecklinkWriter.h
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/**
* @file
* @brief Header file for DecklinkWriter class
* @author Jonathan Thomas <jonathan@openshot.org>
*
* @section LICENSE
*
* Copyright (c) 2008-2014 OpenShot Studios, LLC
* <http://www.openshotstudios.com/>. This file is part of
* OpenShot Library (libopenshot), an open-source project dedicated to
* delivering high quality video editing and animation solutions to the
* world. For more information visit <http://www.openshot.org/>.
*
* OpenShot Library (libopenshot) is free software: you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* OpenShot Library (libopenshot) is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPENSHOT_DECKLINK_WRITER_H
#define OPENSHOT_DECKLINK_WRITER_H
#include "WriterBase.h"
#include <cmath>
#include <ctime>
#include <fcntl.h>
#include <iostream>
#include <omp.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory>
#include <unistd.h>
#include "CacheMemory.h"
#include "Exceptions.h"
#include "Frame.h"
#include "DecklinkOutput.h"
using namespace std;
namespace openshot
{
/**
* @brief This class uses the Blackmagic Decklink libraries, to send video streams to Blackmagic devices.
*
* This requires special hardware manufactured by <a href="http://www.blackmagicdesign.com/products">Blackmagic Designs</a>.
* Once the device is acquired and connected, this reader returns openshot::Frame objects containing the image and audio data.
*/
class DecklinkWriter : public WriterBase
{
private:
bool is_open;
IDeckLink *deckLink;
IDeckLinkDisplayModeIterator *displayModeIterator;
IDeckLinkOutput *deckLinkOutput;
IDeckLinkVideoConversion *m_deckLinkConverter;
pthread_mutex_t sleepMutex;
pthread_cond_t sleepCond;
IDeckLinkIterator *deckLinkIterator;
DeckLinkOutputDelegate *delegate;
IDeckLinkDisplayMode *displayMode;
BMDVideoInputFlags inputFlags;
BMDDisplayMode selectedDisplayMode;
BMDPixelFormat pixelFormat;
int displayModeCount;
int exitStatus;
int ch;
bool foundDisplayMode;
HRESULT result;
int g_videoModeIndex;
int g_audioChannels;
int g_audioSampleDepth;
int g_maxFrames;
int device;
public:
/// Constructor for DecklinkWriter. This automatically opens the device or it
/// throws one of the following exceptions.
DecklinkWriter(int device, int video_mode, int pixel_format, int channels, int sample_depth);
/// Close the device and video stream
void Close();
/// This method is required for all derived classes of WriterBase. Write a Frame to the video file.
void WriteFrame(std::shared_ptr<Frame> frame);
/// This method is required for all derived classes of WriterBase. Write a block of frames from a reader.
void WriteFrame(ReaderBase* reader, int start, int length);
/// Open device and video stream - which is called by the constructor automatically
void Open();
/// Determine if writer is open or closed
bool IsOpen() { return is_open; };
};
}
#endif
WriterBase.h
Header file for WriterBase class.
openshot
This namespace is the default namespace for all code in the openshot library.
Definition: AudioBufferSource.h:45
openshot::DecklinkWriter
This class uses the Blackmagic Decklink libraries, to send video streams to Blackmagic devices.
Definition: DecklinkWriter.h:61
openshot::DecklinkWriter::IsOpen
bool IsOpen()
Determine if writer is open or closed.
Definition: DecklinkWriter.h:108
CacheMemory.h
Header file for CacheMemory class.
Frame.h
Header file for Frame class.
openshot::ReaderBase
This abstract class is the base class, used by all readers in libopenshot.
Definition: ReaderBase.h:96
DecklinkOutput.h
Header file for DecklinkOutput class.
DeckLinkOutputDelegate
Implementation of the Blackmagic Decklink API (used by the DecklinkWriter)
Definition: DecklinkOutput.h:75
Exceptions.h
Header file for all Exception classes.
openshot::WriterBase
This abstract class is the base class, used by writers. Writers are types of classes that encode vide...
Definition: WriterBase.h:86