avdct.c File Reference

#include "libavutil/attributes.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "idctdsp.h"
#include "fdctdsp.h"
#include "pixblockdsp.h"
#include "avdct.h"

Go to the source code of this file.

Macros
#define	OFFSET(x)   offsetof(AVDCT,x)
#define	DEFAULT   0
#define	V   AV_OPT_FLAG_VIDEO_PARAM
#define	A   AV_OPT_FLAG_AUDIO_PARAM
#define	E   AV_OPT_FLAG_ENCODING_PARAM
#define	D   AV_OPT_FLAG_DECODING_PARAM
#define	COPY(src, name)   memcpy(&dsp->name, &src.name, sizeof(dsp->name))

Functions
const av_cold AVClass *	avcodec_dct_get_class (void)
av_cold AVDCT *	avcodec_dct_alloc (void)
	Allocates a AVDCT context. More...
av_cold int	avcodec_dct_init (AVDCT *dsp)

Variables
static const AVOption	avdct_options []
static const AVClass	avdct_class

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(AVDCT,x)

Definition at line 29 of file avdct.c.

DEFAULT

#define DEFAULT   0

Definition at line 30 of file avdct.c.

V

#define V   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 32 of file avdct.c.

A

#define A   AV_OPT_FLAG_AUDIO_PARAM

Definition at line 33 of file avdct.c.

E

#define E   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 34 of file avdct.c.

D

#define D   AV_OPT_FLAG_DECODING_PARAM

Definition at line 35 of file avdct.c.

COPY

#define COPY	(		src,
			name
	)		memcpy(&dsp->name, &src.name, sizeof(dsp->name))

Function Documentation

avcodec_dct_get_class()

const av_cold AVClass* avcodec_dct_get_class

(

void

)

Definition at line 72 of file avdct.c.

Referenced by child_class_iterate().

avcodec_dct_alloc()

av_cold AVDCT* avcodec_dct_alloc

(

void

)

Allocates a AVDCT context.

This needs to be initialized with avcodec_dct_init() after optionally configuring it with AVOptions.

To free it use av_free()

Definition at line 77 of file avdct.c.

Referenced by preinit().

avcodec_dct_init()

av_cold int avcodec_dct_init

(

AVDCT *

dsp

)

Definition at line 90 of file avdct.c.

Referenced by config_input().

Variable Documentation

avdct_options

const AVOption avdct_options[]

static

Initial value:

= {
{"dct", "DCT algorithm", OFFSET(dct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E, .unit = "dct"},
{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_AUTO }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
{"fastint", "fast integer (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FASTINT }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
{"int", "accurate integer", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_INT }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
{"mmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_MMX }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_ALTIVEC }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
{"faan", "floating point AAN DCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_DCT_FAAN }, INT_MIN, INT_MAX, V|E, .unit = "dct"},
 
{"idct", "select IDCT implementation", OFFSET(idct_algo), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, 0, INT_MAX, V|E|D, .unit = "idct"},
{"auto", "autoselect a good one", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_AUTO }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"int", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_INT }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"simple", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLE }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"simplemmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEMMX }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"arm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ARM }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"altivec", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_ALTIVEC }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"simplearm", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARM }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"simplearmv5te", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV5TE }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"simplearmv6", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEARMV6 }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"simpleneon", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLENEON }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"xvid", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"xvidmmx", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_XVID }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
{"faani", "floating point AAN IDCT (experimental / for debugging)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_FAAN }, INT_MIN, INT_MAX, V|D|E, .unit = "idct"},
{"simpleauto", "experimental / for debugging", 0, AV_OPT_TYPE_CONST, {.i64 = FF_IDCT_SIMPLEAUTO }, INT_MIN, INT_MAX, V|E|D, .unit = "idct"},
 
{"bits_per_sample", "", OFFSET(bits_per_sample), AV_OPT_TYPE_INT, {.i64 = 8 }, 0, 14, 0,},
{NULL},
}

Definition at line 37 of file avdct.c.

avdct_class

const AVClass avdct_class

static

Initial value:

= {
    .class_name              = "AVDCT",
    .option                  = avdct_options,
    .version                 = LIBAVUTIL_VERSION_INT,
}

Definition at line 66 of file avdct.c.

Referenced by avcodec_dct_alloc(), and avcodec_dct_get_class().