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99 lines
3.1 KiB
C++
99 lines
3.1 KiB
C++
/**
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* @file
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* @brief Header file for DummyReader class
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* @author Jonathan Thomas <jonathan@openshot.org>
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*
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* @section LICENSE
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*
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* Copyright (c) 2008-2014 OpenShot Studios, LLC
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* <http://www.openshotstudios.com/>. This file is part of
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* OpenShot Library (libopenshot), an open-source project dedicated to
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* delivering high quality video editing and animation solutions to the
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* world. For more information visit <http://www.openshot.org/>.
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*
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* OpenShot Library (libopenshot) is free software: you can redistribute it
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* and/or modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* OpenShot Library (libopenshot) is distributed in the hope that it will be
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* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef OPENSHOT_DUMMY_READER_H
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#define OPENSHOT_DUMMY_READER_H
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#include "ReaderBase.h"
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#include <cmath>
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#include <ctime>
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#include <iostream>
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#include <omp.h>
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#include <stdio.h>
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#include <memory>
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#include "CacheMemory.h"
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#include "Exceptions.h"
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#include "Fraction.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 is used as a simple, dummy reader, which always returns a blank frame.
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*
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* A dummy reader can be created with any framerate or samplerate. This is useful in unit
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* tests that need to test different framerates or samplerates.
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*/
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class DummyReader : public ReaderBase
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{
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private:
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std::shared_ptr<Frame> image_frame;
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bool is_open;
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public:
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/// Blank constructor for DummyReader, with default settings.
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DummyReader();
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/// Constructor for DummyReader.
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DummyReader(Fraction fps, int width, int height, int sample_rate, int channels, float duration);
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/// Close File
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void Close();
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/// Get the cache object used by this reader (always returns NULL for this reader)
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CacheMemory* GetCache() { return NULL; };
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/// Get an openshot::Frame object for a specific frame number of this reader. All numbers
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/// return the same Frame, since they all share the same image data.
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///
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/// @returns The requested frame (containing the image)
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/// @param requested_frame The frame number that is requested.
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std::shared_ptr<Frame> GetFrame(int64_t requested_frame);
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/// Determine if reader is open or closed
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bool IsOpen() { return is_open; };
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/// Return the type name of the class
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string Name() { return "DummyReader"; };
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/// Get and Set JSON methods
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string Json(); ///< Generate JSON string of this object
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void SetJson(string value); ///< Load JSON string into this object
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Json::Value JsonValue(); ///< Generate Json::JsonValue for this object
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void SetJsonValue(Json::Value root); ///< Load Json::JsonValue into this object
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/// Open File - which is called by the constructor automatically
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void Open();
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};
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}
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#endif
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