ops_memcpy.c File Reference

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

Go to the source code of this file.

Data Structures
struct	MemcpyPriv
	Copyright (C) 2025 Niklas Haas. More...

Macros
#define	SWS_MAX_PADDING   64
	Switch to loop if total padding exceeds this number of bytes.

Functions
static void	process (const SwsOpExec *exec, const void *priv, int x_start, int y_start, int x_end, int y_end)
static int	compile (SwsContext *ctx, const SwsOpList *ops, SwsCompiledOp *out)

Variables
const SwsOpBackend	backend_murder

Macro Definition Documentation

SWS_MAX_PADDING

#define SWS_MAX_PADDING   64

Switch to loop if total padding exceeds this number of bytes.

Chosen to align with the typical L1 cache size of modern CPUs, as this avoids the risk of the implementation loading one extra unnecessary cache line.

Definition at line 37 of file ops_memcpy.c.

Referenced by process().

Function Documentation

process()

static void process ( const SwsOpExec * exec, const void * priv, int x_start, int y_start, int x_end, int y_end )

static

Definition at line 41 of file ops_memcpy.c.

compile()

static int compile ( SwsContext * ctx, const SwsOpList * ops, SwsCompiledOp * out )

static

Definition at line 76 of file ops_memcpy.c.

Variable Documentation

backend_murder

const SwsOpBackend backend_murder

Initial value:

= {
    .name       = "memcpy",
    .flags      = SWS_BACKEND_MEMCPY,
    .compile    = compile,
    .hw_format  = AV_PIX_FMT_NONE,
}

Definition at line 147 of file ops_memcpy.c.