INDI::MJPEGEncoder Class Reference

The MJPEGEncoder class encodes frames in JPEG format before transmitting them to the client. More...

#include <mjpegencoder.h>

Inheritance diagram for INDI::MJPEGEncoder:

Collaboration diagram for INDI::MJPEGEncoder:

Public Member Functions
	MJPEGEncoder ()
	~MJPEGEncoder ()
virtual bool	upload (IBLOB *bp, const uint8_t *buffer, uint32_t nbytes, bool isCompressed=false) override
Public Member Functions inherited from INDI::EncoderInterface
	EncoderInterface ()=default
virtual	~EncoderInterface ()=default
virtual void	init (CCD *activeCCD)
virtual bool	setPixelFormat (INDI_PIXEL_FORMAT pixelFormat, uint8_t pixelDepth)
virtual bool	setSize (uint16_t width, uint16_t height)
const char *	getName ()

Private Member Functions
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)

Private Attributes
uint8_t *	jpegBuffer = nullptr
uint16_t	jpegBufferSize =1

Additional Inherited Members
Protected Attributes inherited from INDI::EncoderInterface
const char *	name
CCD *	currentCCD = nullptr
INDI_PIXEL_FORMAT	pixelFormat
uint8_t	pixelDepth = 8
uint16_t	rawWidth
uint16_t	rawHeight

Detailed Description

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.

Constructor & Destructor Documentation

MJPEGEncoder()

INDI::MJPEGEncoder::MJPEGEncoder

(

)

~MJPEGEncoder()

INDI::MJPEGEncoder::~MJPEGEncoder

(

)

Member Function Documentation

getDeviceName()

const char * INDI::MJPEGEncoder::getDeviceName ( )

private

jpeg_compress_8u_gray()

int INDI::MJPEGEncoder::jpeg_compress_8u_gray ( const uint8_t *  src, uint16_t  width, uint16_t  height, int  stride, uint8_t *  dest, int *  destsize, int  quality  )

private

jpeg_compress_8u_rgb()

int INDI::MJPEGEncoder::jpeg_compress_8u_rgb ( const uint8_t *  src, uint16_t  width, uint16_t  height, int  stride, uint8_t *  dest, int *  destsize, int  quality  )

private

upload()

bool INDI::MJPEGEncoder::upload ( IBLOB *  bp, const uint8_t *  buffer, uint32_t  nbytes, bool  isCompressed = false  )

overridevirtual

Implements INDI::EncoderInterface.

Member Data Documentation

jpegBuffer

uint8_t* INDI::MJPEGEncoder::jpegBuffer = nullptr

private

jpegBufferSize

uint16_t INDI::MJPEGEncoder::jpegBufferSize =1

private

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The documentation for this class was generated from the following files:

• ln/3rdparty/src/indilib/indi-1.7.4/libindi/libs/stream/encoder/mjpegencoder.h
• ln/3rdparty/src/indilib/indi-1.7.4/libindi/libs/stream/encoder/mjpegencoder.cpp