A decoder for an AVC (aka H.264) video packet. More...

Classes
struct	Component
	Describes one plane of a Gv::AvcReader image, and points to its data. More...

struct	Data
	Describes a Gv::AvcReader image, and points to its data via up to four Components. More...

struct	Iterator
	A row iterator for Gv::AvcReader providing r/g/b or y/u/v across a row. More...

struct	SimpleIterator
	An optimised row iterator for Gv::AvcReader when simple(). More...

Public Member Functions
	AvcReader (AvcReaderStream &stream, const char *p, size_t n)
	Constructor taking a complete NALU data buffer, including a leading four-byte 00-00-00-01 start code. More...

	AvcReader (AvcReaderStream &stream, const unsigned char *p, size_t n)
	Constructor overload for unsigned char.

bool	valid () const
	Returns true if a picture was decoded successfully.

int	dx () const
	Returns the image width.

int	dy () const
	Returns the image height.

bool	keyframe () const
	Returns true if a key frame.

unsigned char	r (int x, int y) const
	Returns a pixel red value.

unsigned char	g (int x, int y) const
	Returns a pixel green value.

unsigned char	b (int x, int y) const
	Returns a pixel blue value.

unsigned char	luma (int x, int y) const
	Returns a pixel luma value.

unsigned int	rgb (int x, int y) const
	Returns the three rgb values packed into one integer.

Gr::ImageType	fill (std::vector< char > &, int scale=1, bool monochrome=false)
	Fills the supplied buffer with RGB or greyscale image data and returns the raw image type. More...

bool	simple () const
	Returns true if the data format is simple enough for the optimised iterator, Gv::AvcReader::SimpleIterator. More...

Static Public Member Functions
static bool	available ()
	Returns true if the decoder library is built in.

Detailed Description

A decoder for an AVC (aka H.264) video packet.

The class name alludes to the Gr::JpegReader and Gr::PngReader classes, which have a similar interface.

Definition at line 79 of file gvavcreader.h.

Constructor & Destructor Documentation

inline

Constructor taking a complete NALU data buffer, including a leading four-byte 00-00-00-01 start code.

Definition at line 225 of file gvavcreader.h.

Gr::ImageType Gv::AvcReader::fill	(	std::vector< char > &	buffer,
		int	scale = `1`,
		bool	monochrome = `false`
	)

Fills the supplied buffer with RGB or greyscale image data and returns the raw image type.

Definition at line 510 of file gvavcreader_libav.cpp.

bool Gv::AvcReader::simple ( ) const

inline

Returns true if the data format is simple enough for the optimised iterator, Gv::AvcReader::SimpleIterator.

Definition at line 248 of file gvavcreader.h.

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