ops_chain.h File Reference

#include "libavutil/cpu.h"
#include "libavutil/mem.h"
#include "ops_internal.h"

Go to the source code of this file.

Data Structures
union	SwsOpPriv
	Private data for each kernel. More...
struct	SwsOpImpl
struct	SwsOpChain
	Compiled "chain" of operations, which can be dispatched efficiently. More...
struct	SwsImplParams
struct	SwsImplResult
struct	SwsUOpEntry
struct	SwsUOpTable
	Copyright (C) 2025 Niklas Haas. More...

Macros
#define	SWS_MAX_OPS   16

Typedefs
typedef void(*	SwsFuncPtr) (void)
	Per-kernel execution context. More...

Functions
SwsOpChain *	ff_sws_op_chain_alloc (void)
	Copyright (C) 2025 Niklas Haas. More...
void	ff_sws_op_chain_free_cb (void *chain)
static void	ff_sws_op_chain_free (SwsOpChain *chain)
int	ff_sws_op_chain_append (SwsOpChain *chain, SwsFuncPtr func, void(*free)(SwsOpPriv *), const SwsOpPriv *priv)
int	ff_sws_setup_scale (const SwsImplParams *params, SwsImplResult *out)
int	ff_sws_setup_clamp (const SwsImplParams *params, SwsImplResult *out)
int	ff_sws_setup_clear (const SwsImplParams *params, SwsImplResult *out)
int	ff_sws_setup_scalar (const SwsImplParams *params, SwsImplResult *out)
int	ff_sws_setup_vec4 (const SwsImplParams *params, SwsImplResult *out)
static void	ff_op_priv_free (SwsOpPriv *priv)
static void	ff_op_priv_unref (SwsOpPriv *priv)
int	ff_sws_uop_lookup (SwsContext *ctx, const SwsUOpTable *const tables[], int num_tables, const SwsUOp *uop, const int block_size, SwsOpChain *chain)
	"Compile" a single uop by looking it up in a list of fixed size uop tables, in decreasing order of preference. More...

Macro Definition Documentation

SWS_MAX_OPS

#define SWS_MAX_OPS   16

Definition at line 85 of file ops_chain.h.

Typedef Documentation

SwsFuncPtr

typedef void(* SwsFuncPtr) (void)

Per-kernel execution context.

Note: This struct is hard-coded in assembly, so do not change the layout.

Definition at line 70 of file ops_chain.h.

Function Documentation

ff_sws_op_chain_alloc()

SwsOpChain* ff_sws_op_chain_alloc

(

void

)

Copyright (C) 2025 Niklas Haas.

This file is part of FFmpeg.

FFmpeg is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

FFmpeg is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with FFmpeg; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Definition at line 27 of file ops_chain.c.

Referenced by aarch64_compile(), compile_uops_c(), and compile_uops_x86().

ff_sws_op_chain_free_cb()

void ff_sws_op_chain_free_cb

(

void *

chain

)

Definition at line 32 of file ops_chain.c.

Referenced by aarch64_compile(), compile_uops_c(), compile_uops_x86(), and ff_sws_op_chain_free().

ff_sws_op_chain_free()

static void ff_sws_op_chain_free ( SwsOpChain *  chain )

inlinestatic

Definition at line 96 of file ops_chain.h.

Referenced by aarch64_compile(), compile_uops_c(), and compile_uops_x86().

ff_sws_op_chain_append()

int ff_sws_op_chain_append	(	SwsOpChain *	chain,
		SwsFuncPtr	func,
		void(*)(SwsOpPriv *)	free,
		const SwsOpPriv *	priv
	)

Definition at line 46 of file ops_chain.c.

Referenced by aarch64_compile(), and ff_sws_uop_lookup().

ff_sws_setup_scale()

int ff_sws_setup_scale	(	const SwsImplParams *	params,
		SwsImplResult *	out
	)

Referenced by aarch64_setup().

ff_sws_setup_clamp()

int ff_sws_setup_clamp	(	const SwsImplParams *	params,
		SwsImplResult *	out
	)

Referenced by aarch64_setup().

ff_sws_setup_clear()

int ff_sws_setup_clear	(	const SwsImplParams *	params,
		SwsImplResult *	out
	)

Referenced by aarch64_setup().

ff_sws_setup_scalar()

int ff_sws_setup_scalar	(	const SwsImplParams *	params,
		SwsImplResult *	out
	)

Definition at line 185 of file ops_chain.c.

ff_sws_setup_vec4()

int ff_sws_setup_vec4	(	const SwsImplParams *	params,
		SwsImplResult *	out
	)

Definition at line 200 of file ops_chain.c.

ff_op_priv_free()

static void ff_op_priv_free ( SwsOpPriv *  priv )

inlinestatic

Definition at line 144 of file ops_chain.h.

Referenced by aarch64_setup_dither(), aarch64_setup_linear(), DECL_SETUP(), setup_filter_h(), setup_filter_h_4x4(), setup_filter_v(), and setup_linear().

ff_op_priv_unref()

static void ff_op_priv_unref ( SwsOpPriv *  priv )

inlinestatic

Definition at line 149 of file ops_chain.h.

Referenced by DECL_SETUP(), and setup_dither().

ff_sws_uop_lookup()

int ff_sws_uop_lookup	(	SwsContext *	ctx,
		const SwsUOpTable *const	tables[],
		int	num_tables,
		const SwsUOp *	uop,
		const int	block_size,
		SwsOpChain *	chain
	)

"Compile" a single uop by looking it up in a list of fixed size uop tables, in decreasing order of preference.

Returns 0 or a negative error code.

Definition at line 116 of file ops_chain.c.

Referenced by compile_uops_c(), and compile_uops_x86().