format.h File Reference

#include <stdbool.h>
#include "libavutil/csp.h"
#include "libavutil/pixdesc.h"
#include "swscale.h"

Go to the source code of this file.

Data Structures
struct	SwsColor
struct	SwsFormat
struct	SwsFrame
	Represents a view into a single field of frame data. More...

Typedefs
typedef enum SwsPixelType	SwsPixelType

Enumerations
enum	{ FIELD_TOP, FIELD_BOTTOM }

Functions
static int	ff_q_isnan (const AVRational a)
static int	ff_q_equal (const AVRational a, const AVRational b)
static int	ff_cie_xy_equal (const AVCIExy a, const AVCIExy b)
static int	ff_prim_equal (const AVPrimaryCoefficients *a, const AVPrimaryCoefficients *b)
static void	ff_color_update_dynamic (SwsColor *dst, const SwsColor *src)
static void	ff_fmt_clear (SwsFormat *fmt)
SwsFormat	ff_fmt_from_frame (const AVFrame *frame, int field)
	This function also sanitizes and strips the input data, removing irrelevant fields for certain formats. More...
void	ff_fmt_from_pixfmt (enum AVPixelFormat pixfmt, SwsFormat *fmt)
	Subset of ff_fmt_from_frame() that sets default metadata for the format. More...
static int	ff_color_equal (const SwsColor *c1, const SwsColor *c2)
static int	ff_props_equal (const SwsFormat *fmt1, const SwsFormat *fmt2)
static int	ff_fmt_equal (const SwsFormat *fmt1, const SwsFormat *fmt2)
static int	ff_fmt_align (enum AVPixelFormat fmt)
int	ff_test_fmt (const SwsFormat *fmt, int output)
bool	ff_infer_colors (SwsColor *src, SwsColor *dst)
int	ff_sws_decode_pixfmt (SwsOpList *ops, enum AVPixelFormat fmt)
	Append a set of operations for decoding/encoding raw pixels. More...
int	ff_sws_encode_pixfmt (SwsOpList *ops, enum AVPixelFormat fmt)
int	ff_sws_decode_colors (SwsContext *ctx, SwsPixelType type, SwsOpList *ops, const SwsFormat *fmt, bool *incomplete)
	Append a set of operations for transforming decoded pixel values to/from normalized RGB in the specified gamut and pixel type. More...
int	ff_sws_encode_colors (SwsContext *ctx, SwsPixelType type, SwsOpList *ops, const SwsFormat *src, const SwsFormat *dst, bool *incomplete)
void	ff_sws_frame_from_avframe (SwsFrame *dst, const AVFrame *src)
	Initialize a SwsFrame from an AVFrame. More...

Typedef Documentation

SwsPixelType

typedef enum SwsPixelType SwsPixelType

Definition at line 158 of file format.h.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
FIELD_TOP
FIELD_BOTTOM

Definition at line 55 of file format.h.

Function Documentation

ff_q_isnan()

static int ff_q_isnan ( const AVRational  a )

inlinestatic

Definition at line 31 of file format.h.

Referenced by ff_q_equal().

ff_q_equal()

static int ff_q_equal ( const AVRational  a, const AVRational  b  )

inlinestatic

Definition at line 37 of file format.h.

Referenced by ff_cie_xy_equal(), and ff_color_equal().

ff_cie_xy_equal()

static int ff_cie_xy_equal ( const AVCIExy  a, const AVCIExy  b  )

inlinestatic

Definition at line 42 of file format.h.

Referenced by apply_chromatic_adaptation(), and ff_prim_equal().

ff_prim_equal()

static int ff_prim_equal ( const AVPrimaryCoefficients *  a, const AVPrimaryCoefficients *  b  )

inlinestatic

Definition at line 47 of file format.h.

Referenced by ff_color_equal(), and ff_sws_color_map_noop().

ff_color_update_dynamic()

static void ff_color_update_dynamic ( SwsColor *  dst, const SwsColor *  src  )

inlinestatic

Definition at line 70 of file format.h.

Referenced by ff_sws_graph_update_metadata().

ff_fmt_clear()

static void ff_fmt_clear ( SwsFormat *  fmt )

inlinestatic

Definition at line 89 of file format.h.

Referenced by ff_fmt_from_pixfmt(), and ff_sws_op_list_alloc().

ff_fmt_from_frame()

SwsFormat ff_fmt_from_frame	(	const AVFrame *	frame,
		int	field
	)

This function also sanitizes and strips the input data, removing irrelevant fields for certain formats.

Calculate largest value from histogram to use as fallback for clips with missing MaxSCL information. Note that this may end up picking the "reserved" value at the 5% percentile, which in practice appears to track the brightest pixel in the scene.

Definition at line 348 of file format.c.

Referenced by sws_frame_setup(), sws_is_noop(), and sws_test_frame().

ff_fmt_from_pixfmt()

void ff_fmt_from_pixfmt	(	enum AVPixelFormat	pixfmt,
		SwsFormat *	fmt
	)

Subset of ff_fmt_from_frame() that sets default metadata for the format.

Definition at line 482 of file format.c.

Referenced by enum_ops_fmt().

ff_color_equal()

static int ff_color_equal ( const SwsColor *  c1, const SwsColor *  c2  )

inlinestatic

Definition at line 114 of file format.h.

Referenced by ff_props_equal().

ff_props_equal()

static int ff_props_equal ( const SwsFormat *  fmt1, const SwsFormat *  fmt2  )

inlinestatic

Definition at line 124 of file format.h.

Referenced by ff_fmt_equal(), and sws_frame_setup().

ff_fmt_equal()

static int ff_fmt_equal ( const SwsFormat *  fmt1, const SwsFormat *  fmt2  )

inlinestatic

Definition at line 135 of file format.h.

Referenced by ff_sws_graph_reinit(), init_passes(), and sws_is_noop().

ff_fmt_align()

static int ff_fmt_align ( enum AVPixelFormat  fmt )

inlinestatic

Definition at line 142 of file format.h.

ff_test_fmt()

int ff_test_fmt	(	const SwsFormat *	fmt,
		int	output
	)

Definition at line 613 of file format.c.

Referenced by sws_frame_setup(), and sws_test_frame().

ff_infer_colors()

bool ff_infer_colors	(	SwsColor *	src,
		SwsColor *	dst
	)

Definition at line 539 of file format.c.

Referenced by adapt_colors(), and enum_ops_fmt().

ff_sws_decode_pixfmt()

int ff_sws_decode_pixfmt	(	SwsOpList *	ops,
		enum AVPixelFormat	fmt
	)

Append a set of operations for decoding/encoding raw pixels.

This will handle input read/write, swizzling, shifting and byte swapping.

Returns 0 on success, or a negative error code on failure.

Referenced by enum_ops_fmt().

ff_sws_encode_pixfmt()

int ff_sws_encode_pixfmt	(	SwsOpList *	ops,
		enum AVPixelFormat	fmt
	)

Referenced by enum_ops_fmt().

ff_sws_decode_colors()

int ff_sws_decode_colors	(	SwsContext *	ctx,
		SwsPixelType	type,
		SwsOpList *	ops,
		const SwsFormat *	fmt,
		bool *	incomplete
	)

Append a set of operations for transforming decoded pixel values to/from normalized RGB in the specified gamut and pixel type.

Returns 0 on success, or a negative error code on failure.

Referenced by enum_ops_fmt().

ff_sws_encode_colors()

int ff_sws_encode_colors	(	SwsContext *	ctx,
		SwsPixelType	type,
		SwsOpList *	ops,
		const SwsFormat *	src,
		const SwsFormat *	dst,
		bool *	incomplete
	)

Referenced by enum_ops_fmt().

ff_sws_frame_from_avframe()

void ff_sws_frame_from_avframe	(	SwsFrame *	dst,
		const AVFrame *	src
	)

Initialize a SwsFrame from an AVFrame.

Definition at line 652 of file format.c.

Referenced by get_field(), and pass_alloc_output().