rtp_utils.cc File Reference

RTP utility functions. More...

#include "rtp/rtp_utils.h"
#include "rtp/rtp_types.h"
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <random>
#include <string>
#include <thread>

Include dependency graph for rtp_utils.cc:

Data Structures
struct	Ball
	A simple bouncing ball test card. Ball position struct. More...

Namespaces
namespace	mediax
	The Astute Systems (MediaX) library for video streaming.

Functions
void	mediax::InitRtp (int argc, char *argv[])
	Initialize the RTP library, mainly needed for GStreamer support.
bool	mediax::IsRtpInitialised ()
	Check if the RTP library has been initialized.
void	mediax::RtpCleanup ()
	Finalise the RTP library, mainly needed for GStreamer support.
std::string	mediax::ColourspaceTypeToString (rtp::ColourspaceType)
	Convert enum to string.
rtp::ColourspaceType	mediax::ColourspaceTypeFromString (std::string_view)
	Convert string to enum.
uint8_t	mediax::BitsPerPixel (rtp::ColourspaceType mode)
	Get the number of bits per pixel for a given colour space.
uint8_t	mediax::BytesPerPixel (rtp::ColourspaceType mode)
	Get the number of bytes per pixel for a given colour space.
void	EndianSwap32 (uint32_t *data, unsigned int length)
	Swap the endianness of a 32-bit integer.
void	EndianSwap16 (uint16_t *data, unsigned int length)
	Swap the endianness of a 16-bit integer.
void	DumpHex (const void *data, size_t size)
	Dump a hex representation of a buffer.
void	PackRgb (uint8_t *data, uint64_t pixel, mediax::rtp::Rgb rgb, mediax::rtp::ColourspaceType colourspace)
	Pack Red/Green/Blue values into a buffer.
void	CreateColourBarEbuTestCard (uint8_t *data, uint32_t width, uint32_t height, mediax::rtp::ColourspaceType colourspace)
	Create a Colour Bar Ebu Test Card object.
void	CreateColourBarTestCard (uint8_t *data, uint32_t width, uint32_t height, mediax::rtp::ColourspaceType colourspace)
	Create a Colour Bar Test Card object.
void	CreateGreyScaleBarTestCard (uint8_t *data, uint32_t width, uint32_t height, mediax::rtp::ColourspaceType colourspace)
	Create a Grey Scale Bar Test Card object.
void	CreateQuadTestCard (uint8_t *data, uint32_t width, uint32_t height, mediax::rtp::ColourspaceType colourspace)
	Create a Smtpe Test Card object.
void	CreateCheckeredTestCard (uint8_t *data, uint32_t width, uint32_t height, mediax::rtp::ColourspaceType colourspace)
	Create a Checkerd Test Card object.
void	CreateSolidTestCard (uint8_t *data, uint32_t width, uint32_t height, uint8_t red, uint8_t green, uint8_t blue, mediax::rtp::ColourspaceType colourspace)
	Create a Solid Test Card object.
void	CreateWhiteNoiseTestCard (uint8_t *data, uint32_t width, uint32_t height, mediax::rtp::ColourspaceType colourspace)
	Create a White Noise Test Card object.
void	CreateBouncingBallTestCard (uint8_t *data, uint32_t width, uint32_t height, mediax::rtp::ColourspaceType colourspace)
	Create a Bouncing Ball Test Card object.

Detailed Description

RTP utility functions.

Function Documentation

CreateBouncingBallTestCard()

void CreateBouncingBallTestCard	(	uint8_t *	data,
		uint32_t	width,
		uint32_t	height,
		mediax::rtp::ColourspaceType	colourspace
	)

Create a Bouncing Ball Test Card object.

Parameters

data	the buffer to write the test card to
width	the image width in pixels
height	the image height in pixels
colourspace	The colourspace to use

CreateCheckeredTestCard()

void CreateCheckeredTestCard	(	uint8_t *	data,
		uint32_t	width,
		uint32_t	height,
		mediax::rtp::ColourspaceType	colourspace
	)

Create a Checkerd Test Card object.

Parameters

data	the buffer to write the test card to
width	the image width in pixels
height	the image height in pixels
colourspace	The colourspace to use

CreateColourBarEbuTestCard()

void CreateColourBarEbuTestCard	(	uint8_t *	data,
		uint32_t	width,
		uint32_t	height,
		mediax::rtp::ColourspaceType	colourspace
	)

Create a Colour Bar Ebu Test Card object.

Parameters

data
width
height
colourspace

CreateColourBarTestCard()

void CreateColourBarTestCard	(	uint8_t *	data,
		uint32_t	width,
		uint32_t	height,
		mediax::rtp::ColourspaceType	colourspace
	)

Create a Colour Bar Test Card object.

Parameters

data	the buffer to write the test card to
width	the image width in pixels
height	the image height in pixels
colourspace	The colourspace to use

CreateGreyScaleBarTestCard()

void CreateGreyScaleBarTestCard	(	uint8_t *	data,
		uint32_t	width,
		uint32_t	height,
		mediax::rtp::ColourspaceType	colourspace
	)

Create a Grey Scale Bar Test Card object.

Parameters

data	the buffer to write the test card to
width	the image width in pixels
height	the image height in pixels
colourspace	The colourspace to use

CreateQuadTestCard()

void CreateQuadTestCard	(	uint8_t *	data,
		uint32_t	width,
		uint32_t	height,
		mediax::rtp::ColourspaceType	colourspace
	)

Create a Smtpe Test Card object.

Parameters

data	the buffer to write the test card to
width	the image width in pixels
height	the image height in pixels
colourspace	The colourspace to use

CreateSolidTestCard()

void CreateSolidTestCard	(	uint8_t *	data,
		uint32_t	width,
		uint32_t	height,
		uint8_t	red,
		uint8_t	green,
		uint8_t	blue,
		mediax::rtp::ColourspaceType	colourspace
	)

Create a Solid Test Card object.

Parameters

data	the buffer to write the test card to
width	the image width in pixels
height	the image height in pixels
red	RGB value
green	RGB value
blue	RGB value
colourspace	The colourspace to use

CreateWhiteNoiseTestCard()

void CreateWhiteNoiseTestCard	(	uint8_t *	data,
		uint32_t	width,
		uint32_t	height,
		mediax::rtp::ColourspaceType	colourspace
	)

Create a White Noise Test Card object.

Parameters

data	the buffer to write the test card to
width	the image width in pixels
height	the image height in pixels
colourspace	The colourspace to use

DumpHex()

void DumpHex	(	const void *	data,
		size_t	size
	)

Dump a hex representation of a buffer.

Parameters

data	the buffer to write the test card to
size	the size of the buffer

EndianSwap16()

void EndianSwap16	(	uint16_t *	data,
		unsigned int	length
	)

Swap the endianness of a 16-bit integer.

Parameters

data	A pointer to the data
length	The length of the data

EndianSwap32()

void EndianSwap32	(	uint32_t *	data,
		unsigned int	length
	)

Swap the endianness of a 32-bit integer.

Parameters

data	A pointer to the data
length	The length of the data

PackRgb()

void PackRgb	(	uint8_t *	data,
		uint64_t	pixel,
		mediax::rtp::Rgb	rgb,
		mediax::rtp::ColourspaceType	colourspace
	)

Pack Red/Green/Blue values into a buffer.

Parameters

data	the buffer to pack into
pixel	the pixel number
rgb	red/green/blue values
colourspace	the colourspace to use