/usr/include/libindi/stream/encoder/mjpegencoder.h is in libindi-dev 1.7.1-0ubuntu1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | /*
Copyright (C) 2017 by Jasem Mutlaq <mutlaqja@ikarustech.com>
MJPEG Encoder Interface
This library 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 2.1 of the License, or (at your option) any later version.
This library 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 this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "encoderinterface.h"
namespace INDI
{
/**
* @brief The MJPEGEncoder class encodes frames in JPEG format before transmitting them to the client.
*
* The quality is now hard-coded at 70 when encoding the JPEG image. Further compression is not supported.
*/
class MJPEGEncoder : public EncoderInterface
{
public:
MJPEGEncoder();
~MJPEGEncoder();
virtual bool upload(IBLOB *bp, const uint8_t *buffer, uint32_t nbytes, bool isCompressed=false) override;
private:
const char *getDeviceName();
int jpeg_compress_8u_gray (const uint8_t * src, uint16_t width, uint16_t height, int stride, uint8_t * dest, int * destsize, int quality);
int jpeg_compress_8u_rgb (const uint8_t * src, uint16_t width, uint16_t height, int stride, uint8_t * dest, int * destsize, int quality);
uint8_t *jpegBuffer = nullptr;
uint16_t jpegBufferSize=1;
};
}
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