OILBufferImageRecorder.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */
 
#ifndef META_OCEAN_MEDIA_OPEN_IMAGE_LIBRARIES_OL_BUFFER_IMAGE_RECORDER_H
#define META_OCEAN_MEDIA_OPEN_IMAGE_LIBRARIES_OL_BUFFER_IMAGE_RECORDER_H
 
#include "ocean/media/openimagelibraries/OpenImageLibraries.h"
 
#include "ocean/media/BufferImageRecorder.h"
 
namespace Ocean
{
 
namespace Media
{
 
namespace OpenImageLibraries
{
 
/**
 * This class implements a buffer image recorder for OpenImageLibraries.
 * This recorder can be used to save images to files.
 * @ingroup mediaoil
 */
class OCEAN_MEDIA_OIL_EXPORT OILBufferImageRecorder : virtual public BufferImageRecorder
{
    friend class OILLibrary;
 
    public:
 
        /**
         * Saves a given frame as file explicity.
         * @see BufferRecorder::saveImage().
         */
        bool saveImage(const Frame& frame, const std::string& imageType, std::vector<uint8_t>& buffer) override;
 
        /**
         * Returns the buffer of the most recently saved image.
         * @see BufferRecorder::buffer().
         */
        bool buffer(std::vector<unsigned char>& data) const override;
 
        /**
         * Returns a list of possible frame encoders for this recorder.
         * @see FrameRecorder::frameEncoders().
         */
        Encoders frameEncoders() const override;
 
        /**
         * Locks the most recent frame and returns it so that the image data can be written to this frame.
         * @see FrameRecorder::lockBufferToFill().
         */
        bool lockBufferToFill(Frame& recorderFrame, const bool respectFrameFrequency = true) override;
 
        /**
         * Unlocks the filled buffer.
         * @see BufferImageRecorder::unlockBufferToFill().
         */
        void unlockBufferToFill() override;
 
    protected:
 
        /**
         * Creates a new buffer image recorder object.
         */
        OILBufferImageRecorder();
 
        /**
         * Destructs a buffer image recorder object.
         */
        ~OILBufferImageRecorder() override;
 
    protected:
 
        /// Image buffer if the image is not saved explicitly but by a buffer request.
        Frame recorderFrame_;
 
        /// Internal image buffer if the image is not saved explicitly but by a buffer request.
        std::vector<unsigned char> recorderBuffer;
};
 
}
 
}
 
}
 
#endif // META_OCEAN_MEDIA_OPEN_IMAGE_LIBRARIES_OL_BUFFER_IMAGE_RECORDER_H