FFmpeg
Macros | Typedefs | Functions | Variables
postprocess.c File Reference

postprocessing. More...

#include "config.h"
#include "libavutil/avutil.h"
#include "libavutil/avassert.h"
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "postprocess.h"
#include "postprocess_internal.h"
#include "libavutil/avstring.h"
#include "postprocess_template.c"

Go to the source code of this file.

Macros

#define  LICENSE_PREFIX   "libpostproc license: "
 
#define  GET_MODE_BUFFER_SIZE   500
 
#define  OPTIONS_ARRAY_SIZE   10
 
#define  BLOCK_SIZE   8
 
#define  TEMP_STRIDE   8
 
#define  TEMPLATE_PP_C   1
 

Typedefs

typedef void(*  pp_fn )(const uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height, const QP_STORE_T QPs[], int QPStride, int isColor, PPContext *c2)
 

Functions

unsigned  postproc_version (void)
  Return the LIBPOSTPROC_VERSION_INT constant.
 
const char *  postproc_configuration (void)
  Return the libpostproc build-time configuration.
 
const char *  postproc_license (void)
  Return the libpostproc license.
 
  DECLARE_ASM_CONST (8, int, deringThreshold)
 
static int  isHorizDC_C (const uint8_t src[], int stride, const PPContext *c)
  Check if the given 8x8 Block is mostly "flat".
 
static int  isVertDC_C (const uint8_t src[], int stride, const PPContext *c)
  Check if the middle 8x8 Block in the given 8x16 block is flat.
 
static int  isHorizMinMaxOk_C (const uint8_t src[], int stride, int QP)
 
static int  isVertMinMaxOk_C (const uint8_t src[], int stride, int QP)
 
static int  horizClassify_C (const uint8_t src[], int stride, const PPContext *c)
 
static int  vertClassify_C (const uint8_t src[], int stride, const PPContext *c)
 
static void  doHorizDefFilter_C (uint8_t dst[], int stride, const PPContext *c)
 
static void  doHorizLowPass_C (uint8_t dst[], int stride, const PPContext *c)
  Do a horizontal low pass filter on the 10x8 block (dst points to middle 8x8 Block) using the 9-Tap Filter (1,1,2,2,4,2,2,1,1)/16 (C version)
 
static void  horizX1Filter (uint8_t *src, int stride, int QP)
  Experimental Filter 1 (Horizontal) will not damage linear gradients Flat blocks should look like they were passed through the (1,1,2,2,4,2,2,1,1) 9-Tap filter can only smooth blocks at the expected locations (it cannot smooth them if they did move) MMX2 version does correct clipping C version does not not identical with the vertical one.
 
static av_always_inline void  do_a_deblock_C (uint8_t *src, int step, int stride, const PPContext *c)
  accurate deblock filter
 
static void  postProcess (const uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height, const QP_STORE_T QPs[], int QPStride, int isColor, pp_mode *vm, pp_context *vc)
 
pp_mode *  pp_get_mode_by_name_and_quality (const char *name, int quality)
  Return a pp_mode or NULL if an error occurred.
 
void  pp_free_mode (pp_mode *mode)
 
static void  reallocAlign (void **p, int alignment, int size)
 
static void  reallocBuffers (PPContext *c, int width, int height, int stride, int qpStride)
 
static const char *  context_to_name (void *ptr)
 
pp_context *  pp_get_context (int width, int height, int cpuCaps)
 
void  pp_free_context (void *vc)
 
void  pp_postprocess (const uint8_t *src[3], const int srcStride[3], uint8_t *dst[3], const int dstStride[3], int width, int height, const QP_STORE_T *QP_store, int QPStride, pp_mode *vm, void *vc, int pict_type)
 

Variables

static struct PPFilter  filters []
 
static const char *  replaceTable []
 
const char  pp_help []
  a simple help text
 
static const AVClass  av_codec_context_class = { "Postproc", context_to_name, NULL }
 

Detailed Description

postprocessing.

Definition in file postprocess.c.

Macro Definition Documentation

#define LICENSE_PREFIX   "libpostproc license: "
#define GET_MODE_BUFFER_SIZE   500

Definition at line 113 of file postprocess.c.

Referenced by pp_get_mode_by_name_and_quality().

#define OPTIONS_ARRAY_SIZE   10

Definition at line 114 of file postprocess.c.

Referenced by pp_get_mode_by_name_and_quality().

#define BLOCK_SIZE   8

Definition at line 115 of file postprocess.c.

Referenced by doHorizDefFilter_C(), doHorizLowPass_C(), horizX1Filter(), isHorizDC_C(), isVertDC_C(), and isVertMinMaxOk_C().

#define TEMP_STRIDE   8

Definition at line 116 of file postprocess.c.

#define TEMPLATE_PP_C   1

Definition at line 542 of file postprocess.c.

Typedef Documentation

typedef void(* pp_fn)(const uint8_t src[], int srcStride, uint8_t dst[], int dstStride, int width, int height, const QP_STORE_T QPs[], int QPStride, int isColor, PPContext *c2)

Definition at line 578 of file postprocess.c.

Function Documentation

DECLARE_ASM_CONST ( 8  ,
int  ,
deringThreshold   
)
static int isHorizDC_C ( const uint8_t  src[],
int  stride,
const PPContext *  c 
)
inlinestatic

Check if the given 8x8 Block is mostly "flat".

Definition at line 204 of file postprocess.c.

Referenced by horizClassify_C().

static int isVertDC_C ( const uint8_t  src[],
int  stride,
const PPContext *  c 
)
inlinestatic

Check if the middle 8x8 Block in the given 8x16 block is flat.

Definition at line 227 of file postprocess.c.

Referenced by vertClassify_C().

static int isHorizMinMaxOk_C ( const uint8_t  src[],
int  stride,
int  QP 
)
inlinestatic

Definition at line 249 of file postprocess.c.

Referenced by horizClassify_C().

static int isVertMinMaxOk_C ( const uint8_t  src[],
int  stride,
int  QP 
)
inlinestatic

Definition at line 265 of file postprocess.c.

Referenced by vertClassify_C().

static int horizClassify_C ( const uint8_t  src[],
int  stride,
const PPContext *  c 
)
inlinestatic

Definition at line 278 of file postprocess.c.

static int vertClassify_C ( const uint8_t  src[],
int  stride,
const PPContext *  c 
)
inlinestatic

Definition at line 290 of file postprocess.c.

static void doHorizDefFilter_C ( uint8_t  dst[],
int  stride,
const PPContext *  c 
)
inlinestatic

Definition at line 302 of file postprocess.c.

static void doHorizLowPass_C ( uint8_t  dst[],
int  stride,
const PPContext *  c 
)
inlinestatic

Do a horizontal low pass filter on the 10x8 block (dst points to middle 8x8 Block) using the 9-Tap Filter (1,1,2,2,4,2,2,1,1)/16 (C version)

Definition at line 341 of file postprocess.c.

static void horizX1Filter ( uint8_t *  src,
int  stride,
int  QP 
)
inlinestatic

Experimental Filter 1 (Horizontal) will not damage linear gradients Flat blocks should look like they were passed through the (1,1,2,2,4,2,2,1,1) 9-Tap filter can only smooth blocks at the expected locations (it cannot smooth them if they did move) MMX2 version does correct clipping C version does not not identical with the vertical one.

Definition at line 381 of file postprocess.c.

Referenced by postProcess_TMPL().

static av_always_inline void do_a_deblock_C ( uint8_t *  src,
int  step,
int  stride,
const PPContext *  c 
)
static

accurate deblock filter

Definition at line 438 of file postprocess.c.

static void postProcess ( const uint8_t  src[],
int  srcStride,
uint8_t  dst[],
int  dstStride,
int  width,
int  height,
const QP_STORE_T  QPs[],
int  QPStride,
int  isColor,
pp_mode *  vm,
pp_context *  vc 
)
inlinestatic

Definition at line 581 of file postprocess.c.

Referenced by pp_postprocess().

static void reallocAlign ( void **  p,
int  alignment,
int  size 
)
static

Definition at line 857 of file postprocess.c.

Referenced by reallocBuffers().

static void reallocBuffers ( PPContext *  c,
int  width,
int  height,
int  stride,
int  qpStride 
)
static

Definition at line 862 of file postprocess.c.

Referenced by pp_get_context(), and pp_postprocess().

static const char* context_to_name ( void *  ptr )
static

Definition at line 889 of file postprocess.c.

Variable Documentation

struct PPFilter filters[]
static
Initial value:
=
{
{"hb", "hdeblock", 1, 1, 3, H_DEBLOCK},
{"vb", "vdeblock", 1, 2, 4, V_DEBLOCK},
{"h1", "x1hdeblock", 1, 1, 3, H_X1_FILTER},
{"v1", "x1vdeblock", 1, 2, 4, V_X1_FILTER},
{"ha", "ahdeblock", 1, 1, 3, H_A_DEBLOCK},
{"va", "avdeblock", 1, 2, 4, V_A_DEBLOCK},
{"dr", "dering", 1, 5, 6, DERING},
{"al", "autolevels", 0, 1, 2, LEVEL_FIX},
{"lb", "linblenddeint", 1, 1, 4, LINEAR_BLEND_DEINT_FILTER},
{"li", "linipoldeint", 1, 1, 4, LINEAR_IPOL_DEINT_FILTER},
{"ci", "cubicipoldeint", 1, 1, 4, CUBIC_IPOL_DEINT_FILTER},
{"md", "mediandeint", 1, 1, 4, MEDIAN_DEINT_FILTER},
{"fd", "ffmpegdeint", 1, 1, 4, FFMPEG_DEINT_FILTER},
{"l5", "lowpass5", 1, 1, 4, LOWPASS5_DEINT_FILTER},
{"tn", "tmpnoise", 1, 7, 8, TEMP_NOISE_FILTER},
{"fq", "forcequant", 1, 0, 0, FORCE_QUANT},
{"be", "bitexact", 1, 0, 0, BITEXACT},
{NULL, NULL,0,0,0,0}
}

Definition at line 133 of file postprocess.c.

const char* replaceTable[]
static
Initial value:
=
{
"default", "hb:a,vb:a,dr:a",
"de", "hb:a,vb:a,dr:a",
"fast", "h1:a,v1:a,dr:a",
"fa", "h1:a,v1:a,dr:a",
"ac", "ha:a:128:7,va:a,dr:a",
NULL
}

Definition at line 157 of file postprocess.c.

Referenced by pp_get_mode_by_name_and_quality().

const AVClass av_codec_context_class = { "Postproc", context_to_name, NULL }
static

Definition at line 893 of file postprocess.c.

Referenced by pp_get_context().

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