#include "libavutil/avassert.h"
#include "libavutil/error.h"
#include "libavutil/imgutils.h"
#include "libavutil/macros.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/slicethread.h"
#include "libswscale/swscale.h"
#include "libswscale/format.h"
#include "cms.h"
#include "lut3d.h"
#include "swscale_internal.h"
#include "graph.h"
#include "ops.h"

Macros
#define	add_convert_pass add_legacy_sws_pass

Functions
static int	pass_alloc_output (SwsPass *pass)

SwsPass *	ff_sws_graph_add_pass (SwsGraph graph, enum AVPixelFormat fmt, int width, int height, SwsPass input, int align, void *priv, sws_filter_run_t run)
	Allocate and add a new pass to the filter graph. More...

static int	pass_append (SwsGraph graph, enum AVPixelFormat fmt, int w, int h, SwsPass pass, int align, void priv, sws_filter_run_t run)

static void	run_copy (const SwsImg out_base, const SwsImg in_base, int y, int h, const SwsPass *pass)

static void	run_rgb0 (const SwsImg out, const SwsImg in, int y, int h, const SwsPass *pass)

static void	run_xyz2rgb (const SwsImg out, const SwsImg in, int y, int h, const SwsPass *pass)

static void	run_rgb2xyz (const SwsImg out, const SwsImg in, int y, int h, const SwsPass *pass)

static void	free_legacy_swscale (void *priv)

static void	setup_legacy_swscale (const SwsImg out, const SwsImg in, const SwsPass *pass)

static SwsContext *	slice_ctx (const SwsPass *pass, int y)

static void	run_legacy_unscaled (const SwsImg out, const SwsImg in_base, int y, int h, const SwsPass *pass)

static void	run_legacy_swscale (const SwsImg out_base, const SwsImg in, int y, int h, const SwsPass *pass)

static void	get_chroma_pos (SwsGraph graph, int h_chr_pos, int v_chr_pos, const SwsFormat fmt)

static void	legacy_chr_pos (SwsGraph graph, int chr_pos, int override, int *warned)

static int	init_legacy_subpass (SwsGraph graph, SwsContext sws, SwsPass input, SwsPass *output)

static int	add_legacy_sws_pass (SwsGraph graph, SwsFormat src, SwsFormat dst, SwsPass input, SwsPass **output)

static void	free_lut3d (void *priv)

static void	setup_lut3d (const SwsImg out, const SwsImg in, const SwsPass *pass)

static void	run_lut3d (const SwsImg out_base, const SwsImg in_base, int y, int h, const SwsPass *pass)

static int	adapt_colors (SwsGraph graph, SwsFormat src, SwsFormat dst, SwsPass input, SwsPass **output)

static int	init_passes (SwsGraph *graph)

static void	sws_graph_worker (void *priv, int jobnr, int threadnr, int nb_jobs, int nb_threads)

int	ff_sws_graph_create (SwsContext ctx, const SwsFormat dst, const SwsFormat src, int field, SwsGraph *out_graph)
	Allocate and initialize the filter graph. More...

void	ff_sws_graph_free (SwsGraph **pgraph)
	Uninitialize any state associate with this filter graph and free it. More...

static int	opts_equal (const SwsContext c1, const SwsContext c2)

int	ff_sws_graph_reinit (SwsContext ctx, const SwsFormat dst, const SwsFormat src, int field, SwsGraph *out_graph)
	Wrapper around ff_sws_graph_create() that reuses the existing graph if the format is compatible. More...

void	ff_sws_graph_update_metadata (SwsGraph graph, const SwsColor color)
	Update dynamic per-frame HDR metadata without requiring a full reinit. More...

void	ff_sws_graph_run (SwsGraph graph, uint8_t const out_data[4], const int out_linesize[4], const uint8_t *const in_data[4], const int in_linesize[4])
	Dispatch the filter graph on a single field. More...

Macro Definition Documentation

◆ add_convert_pass

#define add_convert_pass add_legacy_sws_pass

Definition at line 541 of file graph.c.

Function Documentation

◆ pass_alloc_output()

static int pass_alloc_output ( SwsPass * pass )

static

Definition at line 39 of file graph.c.

Referenced by ff_sws_graph_add_pass().

◆ ff_sws_graph_add_pass()

SwsPass* ff_sws_graph_add_pass	(	SwsGraph *	graph,
		enum AVPixelFormat	fmt,
		int	width,
		int	height,
		SwsPass *	input,
		int	align,
		void *	priv,
		sws_filter_run_t	run
	)

Allocate and add a new pass to the filter graph.

Parameters

graph	Filter graph to add the pass to.
fmt	Pixel format of the output image.
w	Width of the output image.
h	Height of the output image.
input	Previous pass to read from, or NULL for the input image.
align	Minimum slice alignment for this pass, or 0 for no threading.
priv	Private state for the filter run function.
run	Filter function to run.

Returns: The newly created pass, or NULL on error.

Definition at line 48 of file graph.c.

Referenced by adapt_colors(), init_legacy_subpass(), init_passes(), and pass_append().

◆ pass_append()

static int pass_append	(	SwsGraph *	graph,
		enum AVPixelFormat	fmt,
		int	w,
		int	h,
		SwsPass **	pass,
		int	align,
		void *	priv,
		sws_filter_run_t	run
	)

static

Definition at line 88 of file graph.c.

Referenced by init_legacy_subpass().

◆ run_copy()

static void run_copy	(	const SwsImg *	out_base,
		const SwsImg *	in_base,
		int	y,
		int	h,
		const SwsPass *	pass
	)

static

Definition at line 98 of file graph.c.

Referenced by init_passes(), and palette_subblock_data().

◆ run_rgb0()

static void run_rgb0	(	const SwsImg *	out,
		const SwsImg *	in,
		int	y,
		int	h,
		const SwsPass *	pass
	)

static

Definition at line 121 of file graph.c.

Referenced by init_legacy_subpass().

◆ run_xyz2rgb()

static void run_xyz2rgb	(	const SwsImg *	out,
		const SwsImg *	in,
		int	y,
		int	h,
		const SwsPass *	pass
	)

static

Definition at line 142 of file graph.c.

Referenced by init_legacy_subpass().

◆ run_rgb2xyz()

static void run_rgb2xyz	(	const SwsImg *	out,
		const SwsImg *	in,
		int	y,
		int	h,
		const SwsPass *	pass
	)

static

Definition at line 150 of file graph.c.

Referenced by init_legacy_subpass().

◆ free_legacy_swscale()

static void free_legacy_swscale ( void * priv )

static

Definition at line 164 of file graph.c.

Referenced by init_legacy_subpass().

◆ setup_legacy_swscale()

static void setup_legacy_swscale	(	const SwsImg *	out,
		const SwsImg *	in,
		const SwsPass *	pass
	)

static

Definition at line 170 of file graph.c.

Referenced by init_legacy_subpass().

◆ slice_ctx()

static SwsContext* slice_ctx	(	const SwsPass *	pass,
		int	y
	)

inlinestatic

Definition at line 186 of file graph.c.

Referenced by run_legacy_swscale(), and run_legacy_unscaled().

◆ run_legacy_unscaled()

static void run_legacy_unscaled	(	const SwsImg *	out,
		const SwsImg *	in_base,
		int	y,
		int	h,
		const SwsPass *	pass
	)

static

Definition at line 205 of file graph.c.

Referenced by init_legacy_subpass().

◆ run_legacy_swscale()

static void run_legacy_swscale	(	const SwsImg *	out_base,
		const SwsImg *	in,
		int	y,
		int	h,
		const SwsPass *	pass
	)

static

Definition at line 216 of file graph.c.

Referenced by init_legacy_subpass().

◆ get_chroma_pos()

static void get_chroma_pos	(	SwsGraph *	graph,
		int *	h_chr_pos,
		int *	v_chr_pos,
		const SwsFormat *	fmt
	)

static

Definition at line 227 of file graph.c.

Referenced by add_legacy_sws_pass().

◆ legacy_chr_pos()

static void legacy_chr_pos	(	SwsGraph *	graph,
		int *	chr_pos,
		int	override,
		int *	warned
	)

static

Definition at line 270 of file graph.c.

Referenced by add_legacy_sws_pass().

◆ init_legacy_subpass()

static int init_legacy_subpass	(	SwsGraph *	graph,
		SwsContext *	sws,
		SwsPass *	input,
		SwsPass **	output
	)

static

For slice threading, we need to create sub contexts, similar to how swscale normally handles it internally. The most important difference is that we handle cascaded contexts before threaded contexts; whereas context_init_threaded() does it the other way around.

Definition at line 286 of file graph.c.

Referenced by add_legacy_sws_pass().

◆ add_legacy_sws_pass()

static int add_legacy_sws_pass	(	SwsGraph *	graph,
		SwsFormat	src,
		SwsFormat	dst,
		SwsPass *	input,
		SwsPass **	output
	)

static

Definition at line 396 of file graph.c.

◆ free_lut3d()

static void free_lut3d ( void * priv )

static

Definition at line 549 of file graph.c.

Referenced by adapt_colors().

◆ setup_lut3d()

static void setup_lut3d	(	const SwsImg *	out,
		const SwsImg *	in,
		const SwsPass *	pass
	)

static

Definition at line 555 of file graph.c.

Referenced by adapt_colors().

◆ run_lut3d()

static void run_lut3d	(	const SwsImg *	out_base,
		const SwsImg *	in_base,
		int	y,
		int	h,
		const SwsPass *	pass
	)

static

Definition at line 563 of file graph.c.

Referenced by adapt_colors().

◆ adapt_colors()

static int adapt_colors	(	SwsGraph *	graph,
		SwsFormat	src,
		SwsFormat	dst,
		SwsPass *	input,
		SwsPass **	output
	)

static

Grayspace does not really have primaries, so just force the use of the equivalent other primary set to avoid a conversion. Technically, this does affect the weights used for the Grayscale conversion, but in practise, that should give the expected results more often than not.

Definition at line 574 of file graph.c.

Referenced by init_passes().

◆ init_passes()

static int init_passes ( SwsGraph * graph )

static

Definition at line 642 of file graph.c.

Referenced by ff_sws_graph_create().

◆ sws_graph_worker()

static void sws_graph_worker	(	void *	priv,
		int	jobnr,
		int	threadnr,
		int	nb_jobs,
		int	nb_threads
	)

static

Definition at line 675 of file graph.c.

Referenced by ff_sws_graph_create().

◆ ff_sws_graph_create()

int ff_sws_graph_create	(	SwsContext *	ctx,
		const SwsFormat *	dst,
		const SwsFormat *	src,
		int	field,
		SwsGraph **	out_graph
	)

Allocate and initialize the filter graph.

Returns 0 or a negative error.

Definition at line 688 of file graph.c.

Referenced by ff_sws_graph_reinit().

◆ ff_sws_graph_free()

void ff_sws_graph_free ( SwsGraph ** pgraph )

Uninitialize any state associate with this filter graph and free it.

Definition at line 726 of file graph.c.

Referenced by ff_sws_graph_create(), ff_sws_graph_reinit(), sws_frame_setup(), and sws_freeContext().

◆ opts_equal()

static int opts_equal	(	const SwsContext *	c1,
		const SwsContext *	c2
	)

static

Definition at line 749 of file graph.c.

Referenced by ff_sws_graph_reinit().

◆ ff_sws_graph_reinit()

int ff_sws_graph_reinit	(	SwsContext *	ctx,
		const SwsFormat *	dst,
		const SwsFormat *	src,
		int	field,
		SwsGraph **	graph
	)

Wrapper around ff_sws_graph_create() that reuses the existing graph if the format is compatible.

This will also update dynamic per-frame metadata. Must be called after changing any of the fields in ctx, or else they will have no effect.

Definition at line 765 of file graph.c.

Referenced by sws_frame_setup().

◆ ff_sws_graph_update_metadata()

void ff_sws_graph_update_metadata	(	SwsGraph *	graph,
		const SwsColor *	color
	)

Update dynamic per-frame HDR metadata without requiring a full reinit.

Definition at line 781 of file graph.c.

Referenced by ff_sws_graph_reinit().

◆ ff_sws_graph_run()

void ff_sws_graph_run	(	SwsGraph *	graph,
		uint8_t *const	out_data[4],
		const int	out_linesize[4],
		const uint8_t *const	in_data[4],
		const int	in_linesize[4]
	)

Dispatch the filter graph on a single field.

Internally threaded.

Definition at line 789 of file graph.c.

Macros

Functions

Macro Definition Documentation

◆ add_convert_pass

Function Documentation

◆ pass_alloc_output()

◆ ff_sws_graph_add_pass()

◆ pass_append()

◆ run_copy()

◆ run_rgb0()

◆ run_xyz2rgb()

◆ run_rgb2xyz()

◆ free_legacy_swscale()

◆ setup_legacy_swscale()

◆ slice_ctx()

◆ run_legacy_unscaled()

◆ run_legacy_swscale()

◆ get_chroma_pos()

◆ legacy_chr_pos()

◆ init_legacy_subpass()

◆ add_legacy_sws_pass()

◆ free_lut3d()

◆ setup_lut3d()

◆ run_lut3d()

◆ adapt_colors()

◆ init_passes()

◆ sws_graph_worker()

◆ ff_sws_graph_create()

◆ ff_sws_graph_free()

◆ opts_equal()

◆ ff_sws_graph_reinit()

◆ ff_sws_graph_update_metadata()

◆ ff_sws_graph_run()