FFmpeg: libavcodec/h264dsp.c File Reference

FFmpeg

libavcodec

#include <stdint.h>
#include "libavutil/attributes.h"
#include "libavutil/avassert.h"
#include "avcodec.h"
#include "h264dsp.h"
#include "h264idct.h"
#include "startcode.h"
#include "libavutil/common.h"
#include "h264dsp_template.c"
#include "h264addpx_template.c"

Go to the source code of this file.

Macros
#define	BIT_DEPTH 8

#define	BIT_DEPTH 9

#define	BIT_DEPTH 10

#define	BIT_DEPTH 12

#define	BIT_DEPTH 14

#define	BIT_DEPTH 8

#define	BIT_DEPTH 16

#define	FUNC(a, depth) a ## _ ## depth ## _c

#define	ADDPX_DSP(depth)

#define	H264_DSP(depth)

Functions
av_cold void	ff_h264dsp_init (H264DSPContext *c, const int bit_depth, const int chroma_format_idc)

Detailed Description

H.264 / AVC / MPEG-4 part10 DSP functions.

Author: Michael Niedermayer micha.nosp@m.elni.nosp@m.@gmx..nosp@m.at

Definition in file h264dsp.c.

Macro Definition Documentation

◆ BIT_DEPTH [1/7]

#define BIT_DEPTH 8

Definition at line 63 of file h264dsp.c.

◆ BIT_DEPTH [2/7]

#define BIT_DEPTH 9

Definition at line 63 of file h264dsp.c.

◆ BIT_DEPTH [3/7]

#define BIT_DEPTH 10

Definition at line 63 of file h264dsp.c.

◆ BIT_DEPTH [4/7]

#define BIT_DEPTH 12

Definition at line 63 of file h264dsp.c.

◆ BIT_DEPTH [5/7]

#define BIT_DEPTH 14

Definition at line 63 of file h264dsp.c.

◆ BIT_DEPTH [6/7]

#define BIT_DEPTH 8

Definition at line 63 of file h264dsp.c.

◆ BIT_DEPTH [7/7]

#define BIT_DEPTH 16

Definition at line 63 of file h264dsp.c.

◆ FUNC

#define FUNC	(		a,
			depth
	)		a ## _ ## depth ## _c

◆ ADDPX_DSP

#define ADDPX_DSP ( depth )

Value:

c->h264_add_pixels4_clear = FUNC(ff_h264_add_pixels4, depth);\

c->h264_add_pixels8_clear = FUNC(ff_h264_add_pixels8, depth)

◆ H264_DSP

#define H264_DSP ( depth )

Function Documentation

◆ ff_h264dsp_init()

av_cold void ff_h264dsp_init	(	H264DSPContext *	c,
		const int	bit_depth,
		const int	chroma_format_idc
	)

Definition at line 67 of file h264dsp.c.

Referenced by check_idct(), check_idct_multiple(), check_loop_filter(), check_loop_filter_intra(), h264_slice_header_init(), init(), and svq3_decode_init().

#define FUNC(a, depth)

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

ff_h264_add_pixels4

static void FUNCC() ff_h264_add_pixels4(uint8_t *_dst, int16_t *_src, int stride)

Definition: h264addpx_template.c:30

ff_h264_add_pixels8

static void FUNCC() ff_h264_add_pixels8(uint8_t *_dst, int16_t *_src, int stride)

Definition: h264addpx_template.c:50