gstEncoder.h

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/*
 * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#ifndef __GSTREAMER_ENCODER_H__
#define __GSTREAMER_ENCODER_H__

#include "gstUtility.h"


class gstEncoder
{
public:
        static gstEncoder* Create( gstCodec codec, uint32_t width, uint32_t height, const char* filename );
        
        static gstEncoder* Create( gstCodec codec, uint32_t width, uint32_t height, const char* ipAddress, uint16_t port );
        
        static gstEncoder* Create( gstCodec codec, uint32_t width, uint32_t height, const char* filename, const char* ipAddress, uint16_t port );
        
        ~gstEncoder();
        
        bool EncodeRGBA( uint8_t* buffer );

        bool EncodeRGBA( float* buffer, float maxPixelValue=255.0f );

        bool EncodeI420( void* buffer, size_t size );
        
        inline uint32_t GetWidth() const                        { return mWidth; }

        inline uint32_t GetHeight() const                       { return mHeight; }

protected:
        gstEncoder();
        
        bool buildCapsStr();
        bool buildLaunchStr();
        
        bool init( gstCodec codec, uint32_t width, uint32_t height, const char* filename, const char* ipAddress, uint16_t port );
        
        static void onNeedData( _GstElement* pipeline, uint32_t size, void* user_data );
        static void onEnoughData( _GstElement* pipeline, void* user_data );

        _GstBus*     mBus;
        _GstCaps*    mBufferCaps;
        _GstElement* mAppSrc;
        _GstElement* mPipeline;
        gstCodec     mCodec;
        bool         mNeedData;
        uint32_t     mWidth;
        uint32_t     mHeight;
        
        std::string  mCapsStr;
        std::string  mLaunchStr;
        std::string  mOutputPath;
        std::string  mOutputIP;
        uint16_t     mOutputPort;

        // format conversion buffers
        void* mCpuRGBA;
        void* mGpuRGBA;
        void* mCpuI420;
        void* mGpuI420;
};
 
 
#endif