FFmpeg
Macros | Functions
swscale.c File Reference
#include "config.h"
#include "libavutil/attributes.h"
#include "libswscale/swscale.h"
#include "libswscale/swscale_internal.h"
#include "libavutil/aarch64/cpu.h"

Go to the source code of this file.

Macros

#define SCALE_FUNC(filter_n, from_bpc, to_bpc, opt)
 
#define SCALE_FUNCS(filter_n, opt)   SCALE_FUNC(filter_n, 8, 15, opt);
 
#define ALL_SCALE_FUNCS(opt)
 
#define ASSIGN_SCALE_FUNC2(hscalefn, filtersize, opt)
 
#define ASSIGN_SCALE_FUNC(hscalefn, filtersize, opt)
 

Functions

 ALL_SCALE_FUNCS (neon)
 
void ff_yuv2planeX_8_neon (const int16_t *filter, int filterSize, const int16_t **src, uint8_t *dest, int dstW, const uint8_t *dither, int offset)
 
av_cold void ff_sws_init_swscale_aarch64 (SwsContext *c)
 

Macro Definition Documentation

◆ SCALE_FUNC

#define SCALE_FUNC (   filter_n,
  from_bpc,
  to_bpc,
  opt 
)
Value:
void ff_hscale ## from_bpc ## to ## to_bpc ## _ ## filter_n ## _ ## opt( \
SwsContext *c, int16_t *data, \
int dstW, const uint8_t *src, \
const int16_t *filter, \
const int32_t *filterPos, int filterSize)

Definition at line 25 of file swscale.c.

◆ SCALE_FUNCS

#define SCALE_FUNCS (   filter_n,
  opt 
)    SCALE_FUNC(filter_n, 8, 15, opt);

Definition at line 31 of file swscale.c.

◆ ALL_SCALE_FUNCS

#define ALL_SCALE_FUNCS (   opt)
Value:
SCALE_FUNCS(4, opt); \
SCALE_FUNCS(X8, opt)

Definition at line 33 of file swscale.c.

◆ ASSIGN_SCALE_FUNC2

#define ASSIGN_SCALE_FUNC2 (   hscalefn,
  filtersize,
  opt 
)
Value:
do { \
if (c->srcBpc == 8 && c->dstBpc <= 14) { \
hscalefn = \
ff_hscale8to15_ ## filtersize ## _ ## opt; \
} \
} while (0)

Definition at line 43 of file swscale.c.

◆ ASSIGN_SCALE_FUNC

#define ASSIGN_SCALE_FUNC (   hscalefn,
  filtersize,
  opt 
)
Value:
switch (filtersize) { \
case 4: ASSIGN_SCALE_FUNC2(hscalefn, 4, opt); break; \
default: if (filtersize % 8 == 0) \
ASSIGN_SCALE_FUNC2(hscalefn, X8, opt); \
break; \
}

Definition at line 50 of file swscale.c.

Function Documentation

◆ ALL_SCALE_FUNCS()

ALL_SCALE_FUNCS ( neon  )

◆ ff_yuv2planeX_8_neon()

void ff_yuv2planeX_8_neon ( const int16_t *  filter,
int  filterSize,
const int16_t **  src,
uint8_t *  dest,
int  dstW,
const uint8_t *  dither,
int  offset 
)

◆ ff_sws_init_swscale_aarch64()

av_cold void ff_sws_init_swscale_aarch64 ( SwsContext c)

Definition at line 58 of file swscale.c.

Referenced by ff_sws_init_scale().

data
const char data[16]
Definition: mxf.c:146
filter
filter_frame For filters that do not use the this method is called when a frame is pushed to the filter s input It can be called at any time except in a reentrant way If the input frame is enough to produce then the filter should push the output frames on the output link immediately As an exception to the previous rule if the input frame is enough to produce several output frames then the filter needs output only at least one per link The additional frames can be left buffered in the filter
Definition: filter_design.txt:228
SCALE_FUNCS
#define SCALE_FUNCS(filter_n, opt)
Definition: swscale.c:31
to
const char * to
Definition: webvttdec.c:35
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
ASSIGN_SCALE_FUNC2
#define ASSIGN_SCALE_FUNC2(hscalefn, filtersize, opt)
Definition: swscale.c:43
_
#define _
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
int32_t
int32_t
Definition: audioconvert.c:56
SwsContext
Definition: swscale_internal.h:298