ops.c File Reference

#include "libavutil/avassert.h"
#include "libavutil/bswap.h"
#include "libavutil/mem.h"
#include "libavutil/rational.h"
#include "libavutil/refstruct.h"
#include "ops.h"
#include "ops_internal.h"

Go to the source code of this file.

Macros
#define	RET(x)
#define	PRINTQ(q)   print_q(q, (char[32]){0}, sizeof(char[32]) - 1)

Functions
const char *	ff_sws_pixel_type_name (SwsPixelType type)
int	ff_sws_pixel_type_size (SwsPixelType type)
bool	ff_sws_pixel_type_is_int (SwsPixelType type)
SwsPixelType	ff_sws_pixel_type_to_uint (SwsPixelType type)
static AVRational	av_min_q (AVRational a, AVRational b)
static AVRational	av_max_q (AVRational a, AVRational b)
void	ff_sws_apply_op_q (const SwsOp *op, AVRational x[4])
	Apply an operation to an AVRational. More...
static void	op_uninit (SwsOp *op)
SwsOpList *	ff_sws_op_list_alloc (void)
void	ff_sws_op_list_free (SwsOpList **p_ops)
SwsOpList *	ff_sws_op_list_duplicate (const SwsOpList *ops)
	Returns a duplicate of ops, or NULL on OOM. More...
void	ff_sws_op_list_remove_at (SwsOpList *ops, int index, int count)
int	ff_sws_op_list_insert_at (SwsOpList *ops, int index, SwsOp *op)
int	ff_sws_op_list_append (SwsOpList *ops, SwsOp *op)
	These will take over ownership of op and set it to {0}, even on failure. More...
int	ff_sws_op_list_max_size (const SwsOpList *ops)
	Returns the size of the largest pixel type used in ops. More...
uint32_t	ff_sws_linear_mask (const SwsLinearOp c)
static const char *	describe_lin_mask (uint32_t mask)
static char	describe_comp_flags (unsigned flags)
static const char *	print_q (const AVRational q, char buf[], int buf_len)
void	ff_sws_op_list_print (void *log, int lev, const SwsOpList *ops)
	Print out the contents of an operation list. More...

Variables
const SwsOpBackend	backend_c
	Copyright (C) 2025 Niklas Haas. More...
const SwsOpBackend	backend_murder
const SwsOpBackend	backend_x86
const SwsOpBackend *const	ff_sws_op_backends []

Macro Definition Documentation

RET

#define RET

(

x

)

Value:

    do {                                                                       \
        if ((ret = (x)) < 0)                                                   \
            return ret;                                                        \
    } while (0)

Definition at line 43 of file ops.c.

PRINTQ

#define PRINTQ

(

q

)

print_q(q, (char[32]){0}, sizeof(char[32]) - 1)

Definition at line 409 of file ops.c.

Function Documentation

ff_sws_pixel_type_name()

const char* ff_sws_pixel_type_name

(

SwsPixelType

type

)

Definition at line 49 of file ops.c.

Referenced by check_clear(), check_convert(), check_dither(), check_linear(), check_min_max(), check_read_write(), check_scale(), check_shift(), check_swizzle(), and ff_sws_op_list_print().

ff_sws_pixel_type_size()

int ff_sws_pixel_type_size

(

SwsPixelType

type

)

Definition at line 64 of file ops.c.

Referenced by check_clear(), check_convert(), check_scale(), compile(), ff_sws_apply_op_q(), ff_sws_op_list_max_size(), ff_sws_op_list_update_comps(), ff_sws_pack_op_decode(), ff_sws_pixel_expand(), ff_sws_pixel_type_to_uint(), ff_sws_solve_shuffle(), normalize_clear(), op_match(), rndq(), rw_pixel_bits(), and setup_swap_bytes().

ff_sws_pixel_type_is_int()

bool ff_sws_pixel_type_is_int

(

SwsPixelType

type

)

Definition at line 79 of file ops.c.

Referenced by check_clear(), check_convert(), check_dither(), check_linear(), check_scale(), check_shift(), ff_sws_apply_op_q(), ff_sws_op_list_optimize(), ff_sws_op_list_update_comps(), and rndq().

ff_sws_pixel_type_to_uint()

SwsPixelType ff_sws_pixel_type_to_uint

(

SwsPixelType

type

)

Definition at line 96 of file ops.c.

av_min_q()

static AVRational av_min_q ( AVRational  a, AVRational  b  )

static

Definition at line 112 of file ops.c.

Referenced by ff_sws_apply_op_q().

av_max_q()

static AVRational av_max_q ( AVRational  a, AVRational  b  )

static

Definition at line 117 of file ops.c.

Referenced by ff_sws_apply_op_q().

ff_sws_apply_op_q()

void ff_sws_apply_op_q	(	const SwsOp *	op,
		AVRational	x[4]
	)

Apply an operation to an AVRational.

No-op for read/write operations.

Definition at line 122 of file ops.c.

Referenced by ff_sws_op_list_optimize(), and ff_sws_op_list_update_comps().

op_uninit()

static void op_uninit ( SwsOp *  op )

static

Definition at line 223 of file ops.c.

Referenced by ff_sws_op_list_free(), ff_sws_op_list_insert_at(), and ff_sws_op_list_remove_at().

ff_sws_op_list_alloc()

SwsOpList* ff_sws_op_list_alloc

(

void

)

Definition at line 234 of file ops.c.

ff_sws_op_list_free()

void ff_sws_op_list_free

(

SwsOpList **

p_ops

)

Definition at line 245 of file ops.c.

ff_sws_op_list_duplicate()

SwsOpList* ff_sws_op_list_duplicate

(

const SwsOpList *

ops

)

Returns a duplicate of ops, or NULL on OOM.

Definition at line 259 of file ops.c.

ff_sws_op_list_remove_at()

void ff_sws_op_list_remove_at	(	SwsOpList *	ops,
		int	index,
		int	count
	)

Definition at line 288 of file ops.c.

Referenced by ff_sws_op_list_optimize().

ff_sws_op_list_insert_at()

int ff_sws_op_list_insert_at	(	SwsOpList *	ops,
		int	index,
		SwsOp *	op
	)

Definition at line 298 of file ops.c.

Referenced by ff_sws_op_list_append(), and ff_sws_op_list_optimize().

ff_sws_op_list_append()

int ff_sws_op_list_append	(	SwsOpList *	ops,
		SwsOp *	op
	)

These will take over ownership of op and set it to {0}, even on failure.

Definition at line 312 of file ops.c.

ff_sws_op_list_max_size()

int ff_sws_op_list_max_size

(

const SwsOpList *

ops

)

Returns the size of the largest pixel type used in ops.

Definition at line 317 of file ops.c.

Referenced by compile().

ff_sws_linear_mask()

uint32_t ff_sws_linear_mask

(

const SwsLinearOp

c

)

Definition at line 328 of file ops.c.

Referenced by extract_swizzle(), and ff_sws_op_list_optimize().

describe_lin_mask()

static const char* describe_lin_mask ( uint32_t  mask )

static

Definition at line 340 of file ops.c.

Referenced by ff_sws_op_list_print().

describe_comp_flags()

static char describe_comp_flags ( unsigned  flags )

static

Definition at line 381 of file ops.c.

Referenced by ff_sws_op_list_print().

print_q()

static const char* print_q ( const AVRational  q, char  buf[], int  buf_len  )

static

Definition at line 393 of file ops.c.

ff_sws_op_list_print()

void ff_sws_op_list_print	(	void *	log,
		int	lev,
		const SwsOpList *	ops
	)

Print out the contents of an operation list.

Definition at line 411 of file ops.c.

Variable Documentation

backend_c

const SwsOpBackend backend_c

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 106 of file ops_backend.c.

backend_murder

const SwsOpBackend backend_murder

Definition at line 129 of file ops_memcpy.c.

backend_x86

const SwsOpBackend backend_x86

Definition at line 720 of file ops.c.

ff_sws_op_backends

const SwsOpBackend* const ff_sws_op_backends[]

Initial value:

= {
    &backend_murder,
 
 
 
    &backend_c,
    NULL
}

Definition at line 34 of file ops.c.

Referenced by check_ops().