#include "libavutil/avassert.h"
#include "libavutil/mem.h"
#include "libavutil/rational.h"
#include "ops_chain.h"

Macros
#define	Q(N) ((AVRational) { N, 1 })
	Copyright (C) 2025 Niklas Haas. More...

#define	q2pixel(type, q) ((q).den ? (type) (q).num / (q).den : 0)

Functions
SwsOpChain *	ff_sws_op_chain_alloc (void)

void	ff_sws_op_chain_free_cb (void *ptr)

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

static int	op_match (const SwsOp op, const SwsOpEntry entry, const SwsComps next)
	Match an operation against a reference operation. More...

int	ff_sws_op_compile_tables (const SwsOpTable const tables[], int num_tables, SwsOpList ops, const int block_size, SwsOpChain *chain)
	"Compile" a single op by looking it up in a list of fixed size op tables. More...

int	ff_sws_setup_u8 (const SwsOp op, SwsOpPriv out)

int	ff_sws_setup_u (const SwsOp op, SwsOpPriv out)

int	ff_sws_setup_q (const SwsOp op, SwsOpPriv out)

int	ff_sws_setup_q4 (const SwsOp op, SwsOpPriv out)

Macro Definition Documentation

◆ Q

#define Q ( N ) ((AVRational) { N, 1 })

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.

◆ q2pixel

#define q2pixel	(	type,
		q
	)	((q).den ? (type) (q).num / (q).den : 0)

Definition at line 247 of file ops_chain.c.

Function Documentation

◆ ff_sws_op_chain_alloc()

SwsOpChain* ff_sws_op_chain_alloc ( void )

Definition at line 29 of file ops_chain.c.

Referenced by compile().

◆ ff_sws_op_chain_free_cb()

void ff_sws_op_chain_free_cb ( void * ptr )

Definition at line 34 of file ops_chain.c.

Referenced by compile(), and ff_sws_op_chain_free().

◆ ff_sws_op_chain_append()

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

Definition at line 48 of file ops_chain.c.

Referenced by ff_sws_op_compile_tables().

◆ op_match()

static int op_match	(	const SwsOp *	op,
		const SwsOpEntry *	entry,
		const SwsComps	next
	)

static

Match an operation against a reference operation.

Returns a score for how well the reference matches the operation, or 0 if there is no match.

If ref->comps has any flags set, they must be set in op as well. Likewise, if ref->comps has any components marked as unused, they must be marked as as unused in ops as well.

For SWS_OP_LINEAR, ref->linear.mask must be a strict superset of op->linear.mask, but may not contain any columns explicitly ignored by op->comps.unused.

For SWS_OP_READ, SWS_OP_WRITE, SWS_OP_SWAP_BYTES and SWS_OP_SWIZZLE, the exact type is not checked, just the size.

Components set in next.unused are ignored when matching. If flexible is true, the op body is ignored - only the operation, pixel type, and component masks are checked.

Definition at line 82 of file ops_chain.c.

Referenced by ff_sws_op_compile_tables().

◆ ff_sws_op_compile_tables()

int ff_sws_op_compile_tables	(	const SwsOpTable *const	tables[],
		int	num_tables,
		SwsOpList *	ops,
		const int	block_size,
		SwsOpChain *	chain
	)

"Compile" a single op by looking it up in a list of fixed size op tables.

See op_match in ops.c for details on how the matching works.

Returns 0, AVERROR(EAGAIN), or a negative error code.

Definition at line 196 of file ops_chain.c.

Referenced by compile().

◆ ff_sws_setup_u8()

int ff_sws_setup_u8	(	const SwsOp *	op,
		SwsOpPriv *	out
	)

Definition at line 249 of file ops_chain.c.

◆ ff_sws_setup_u()

int ff_sws_setup_u	(	const SwsOp *	op,
		SwsOpPriv *	out
	)

Definition at line 255 of file ops_chain.c.

◆ ff_sws_setup_q()

int ff_sws_setup_q	(	const SwsOp *	op,
		SwsOpPriv *	out
	)

Definition at line 266 of file ops_chain.c.

◆ ff_sws_setup_q4()

int ff_sws_setup_q4	(	const SwsOp *	op,
		SwsOpPriv *	out
	)

Definition at line 279 of file ops_chain.c.

Referenced by normalize_clear().

Macros

Functions