#include "libavutil/mem_internal.h"
#include "ops.h"
#include "ops_dispatch.h"

Macros
#define	Q(N) ((AVRational64) { N, 1 })
	Copyright (C) 2025 Niklas Haas. More...

Functions
static AVRational64	ff_sws_pixel_expand (SwsPixelType from, SwsPixelType to)

static void	ff_sws_pack_op_decode (const SwsOp *op, uint64_t mask[4], int shift[4])

int	ff_sws_op_list_split_at (SwsOpList ops1, SwsOpList *ops2, int index)
	Split an op list into two at the given index. More...

int	ff_sws_op_list_split_planes (SwsOpList ops1, SwsOpList *ops2, SwsCompMask planes)
	Reduce an op list into a reduced subset that operates only on a given subset of planes. More...

Macro Definition Documentation

◆ Q

#define Q ( N ) ((AVRational64) { 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 29 of file ops_internal.h.

Function Documentation

◆ ff_sws_pixel_expand()

static AVRational64 ff_sws_pixel_expand	(	SwsPixelType	from,
		SwsPixelType	to
	)

inlinestatic

Definition at line 31 of file ops_internal.h.

Referenced by ff_sws_apply_op_q(), and ff_sws_op_list_optimize().

◆ ff_sws_pack_op_decode()

static void ff_sws_pack_op_decode	(	const SwsOp *	op,
		uint64_t	mask[4],
		int	shift[4]
	)

inlinestatic

Definition at line 43 of file ops_internal.h.

Referenced by ff_sws_apply_op_q().

◆ ff_sws_op_list_split_at()

int ff_sws_op_list_split_at	(	SwsOpList *	ops1,
		SwsOpList **	ops2,
		int	index
	)

Split an op list into two at the given index.

The split will be mediated by a set of planar read/write operations, plus a swizzle (if necessary) to re-order only used components. If a split is performed, both output lists will be optimized before returning.

Parameters

ops1	The first part of the split op list. Will be modified in-place.
ops2	The second part of the split op list will be returned here, or NULL if no split was necessary.
index	The index of the operation to split before. The operation itself will be absent from `ops1` and instead moved to the start of `ops2`.

Returnse 0 or a negative error code.

Not all components may be needed; but we need the ones that are used to be contiguous for the write/read operations. So, first compress them into a linearly ascending list of components

Definition at line 1101 of file ops_optimizer.c.

Referenced by compile_subpass().

◆ ff_sws_op_list_split_planes()

int ff_sws_op_list_split_planes	(	SwsOpList *	ops1,
		SwsOpList **	ops2,
		SwsCompMask	planes
	)

Reduce an op list into a reduced subset that operates only on a given subset of planes.

No effect if the output is not planar, or if the plane mask is empty or equal to all planes.

Parameters

ops1	Updated in-place to contain only the selected planes.
ops2	The removed remainder is returned here, or NULL if no-op.
planes	A mask of the plane indices to keep.

Returns 0 or a negative error code.

Definition at line 824 of file ops_optimizer.c.