vf_pp7.c File Reference

Postprocessing filter - 7. More...

#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "internal.h"
#include "vf_pp7.h"

Go to the source code of this file.

Macros
#define	OFFSET(x)   offsetof(PP7Context, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#define	N0   4
#define	N1   5
#define	N2   10
#define	SN0   2
#define	SN1   2.2360679775
#define	SN2   3.16227766017
#define	N   (1 << 16)

Enumerations
enum	mode {   MODE_NONE, MODE_RO, MODE_RW, MODE_TOGGLE,   MODE_RANDOM, NB_MODES, MODE_HARD, MODE_SOFT,   MODE_MEDIUM, MODE_HARD, MODE_SOFT, NB_MODES }

Functions
	AVFILTER_DEFINE_CLASS (pp7)
static void	init_thres2 (PP7Context *p)
static void	dctA_c (int16_t *dst, uint8_t *src, int stride)
static void	dctB_c (int16_t *dst, int16_t *src)
static int	hardthresh_c (PP7Context *p, int16_t *src, int qp)
static int	mediumthresh_c (PP7Context *p, int16_t *src, int qp)
static int	softthresh_c (PP7Context *p, int16_t *src, int qp)
static void	filter (PP7Context *p, uint8_t *dst, uint8_t *src, int dst_stride, int src_stride, int width, int height, uint8_t *qp_store, int qp_stride, int is_luma)
static int	query_formats (AVFilterContext *ctx)
static int	config_input (AVFilterLink *inlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	pp7_options []
static const uint8_t	dither [8][8]
static const int	factor [16]
static const int	thres [16]
static const AVFilterPad	pp7_inputs []
static const AVFilterPad	pp7_outputs []
AVFilter	ff_vf_pp7

Detailed Description

Postprocessing filter - 7.

Originally written by Michael Niedermayer for the MPlayer project, and ported by Arwa Arif for FFmpeg.

Definition in file vf_pp7.c.

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(PP7Context, x)

Definition at line 43 of file vf_pp7.c.

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 44 of file vf_pp7.c.

#define N0   4

Definition at line 67 of file vf_pp7.c.

Referenced by celt_decode_band(), celt_deinterleave_hadamard(), celt_extract_collapse_mask(), celt_haar1(), and celt_interleave_hadamard().

#define N1   5

Definition at line 68 of file vf_pp7.c.

#define N2   10

Definition at line 69 of file vf_pp7.c.

Referenced by celt_compute_qn().

#define SN0   2

Definition at line 70 of file vf_pp7.c.

Referenced by init_thres2().

#define SN1   2.2360679775

Definition at line 71 of file vf_pp7.c.

#define SN2   3.16227766017

Definition at line 72 of file vf_pp7.c.

Referenced by init_thres2().

#define N   (1 << 16)

Definition at line 73 of file vf_pp7.c.

Referenced by celt_cwrsi(), celt_decode_allocation(), celt_decode_band(), celt_deinterleave_hadamard(), celt_interleave_hadamard(), celt_normalize_residual(), celt_renormalize_vector(), celt_stereo_merge(), evolve(), ff_imdct15_init(), fft_calc(), and z_scan_block_avail().

Enumeration Type Documentation

enum mode

Enumerator:

MODE_NONE
MODE_RO
MODE_RW
MODE_TOGGLE
MODE_RANDOM
NB_MODES
MODE_HARD
MODE_SOFT
MODE_MEDIUM
MODE_HARD
MODE_SOFT
NB_MODES

Definition at line 37 of file vf_pp7.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

pp7

)

static void init_thres2 ( PP7Context *  p )

static

Definition at line 89 of file vf_pp7.c.

Referenced by config_input().

static void dctA_c ( int16_t *  dst, uint8_t *  src, int  stride  )

inlinestatic

Definition at line 101 of file vf_pp7.c.

Referenced by filter().

static void dctB_c ( int16_t *  dst, int16_t *  src  )

static

Definition at line 124 of file vf_pp7.c.

Referenced by config_input().

static int hardthresh_c ( PP7Context *  p, int16_t *  src, int  qp  )

static

Definition at line 147 of file vf_pp7.c.

Referenced by config_input().

static int mediumthresh_c ( PP7Context *  p, int16_t *  src, int  qp  )

static

Definition at line 163 of file vf_pp7.c.

Referenced by config_input().

static int softthresh_c ( PP7Context *  p, int16_t *  src, int  qp  )

static

Definition at line 187 of file vf_pp7.c.

Referenced by config_input().

static void filter ( PP7Context *  p, uint8_t *  dst, uint8_t *  src, int  dst_stride, int  src_stride, int  width, int  height, uint8_t *  qp_store, int  qp_stride, int  is_luma  )

static

Definition at line 207 of file vf_pp7.c.

Referenced by filter_frame().

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 273 of file vf_pp7.c.

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 288 of file vf_pp7.c.

static int filter_frame ( AVFilterLink *  inlink, AVFrame *  in  )

static

Definition at line 321 of file vf_pp7.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 376 of file vf_pp7.c.

Variable Documentation

const AVOption pp7_options[]

static

Initial value:

= {
    { "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 64, FLAGS },
    { "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_MEDIUM}, 0, 2, FLAGS, "mode" },
        { "hard",   "hard thresholding",   0, AV_OPT_TYPE_CONST, {.i64 = MODE_HARD},   INT_MIN, INT_MAX, FLAGS, "mode" },
        { "soft",   "soft thresholding",   0, AV_OPT_TYPE_CONST, {.i64 = MODE_SOFT},   INT_MIN, INT_MAX, FLAGS, "mode" },
        { "medium", "medium thresholding", 0, AV_OPT_TYPE_CONST, {.i64 = MODE_MEDIUM}, INT_MIN, INT_MAX, FLAGS, "mode" },
    { NULL }
}

Definition at line 45 of file vf_pp7.c.

const uint8_t dither[8][8]

static

Initial value:

= {
    {  0,  48,  12,  60,   3,  51,  15,  63, },
    { 32,  16,  44,  28,  35,  19,  47,  31, },
    {  8,  56,   4,  52,  11,  59,   7,  55, },
    { 40,  24,  36,  20,  43,  27,  39,  23, },
    {  2,  50,  14,  62,   1,  49,  13,  61, },
    { 34,  18,  46,  30,  33,  17,  45,  29, },
    { 10,  58,   6,  54,   9,  57,   5,  53, },
    { 42,  26,  38,  22,  41,  25,  37,  21, },
}

Definition at line 56 of file vf_pp7.c.

Referenced by filter().

const int factor[16]

static

Initial value:

= {
    N / (N0 * N0), N / (N0 * N1), N / (N0 * N0), N / (N0 * N2),
    N / (N1 * N0), N / (N1 * N1), N / (N1 * N0), N / (N1 * N2),
    N / (N0 * N0), N / (N0 * N1), N / (N0 * N0), N / (N0 * N2),
    N / (N2 * N0), N / (N2 * N1), N / (N2 * N0), N / (N2 * N2),
}

Definition at line 75 of file vf_pp7.c.

Referenced by adaptive_quantization(), av_resample_init(), avpriv_solve_lls(), build_filter(), create_default_qtables(), ff_audio_resample_init(), ff_jpegls_reset_coding_parameters(), ffserver_set_float_param(), ffserver_set_int_param(), hardthresh_c(), mediumthresh_c(), resample_init(), and softthresh_c().

const int thres[16]

static

Initial value:

= {
    N / (SN0 * SN0), N / (SN0 * SN2), N / (SN0 * SN0), N / (SN0 * SN2),
    N / (SN2 * SN0), N / (SN2 * SN2), N / (SN2 * SN0), N / (SN2 * SN2),
    N / (SN0 * SN0), N / (SN0 * SN2), N / (SN0 * SN0), N / (SN0 * SN2),
    N / (SN2 * SN0), N / (SN2 * SN2), N / (SN2 * SN0), N / (SN2 * SN2),
}

Definition at line 82 of file vf_pp7.c.

const AVFilterPad pp7_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input,
        .filter_frame = filter_frame,
    },
    { NULL }
}

Definition at line 382 of file vf_pp7.c.

const AVFilterPad pp7_outputs[]

static

Initial value:

= {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
    },
    { NULL }
}

Definition at line 392 of file vf_pp7.c.

AVFilter ff_vf_pp7

Initial value:

= {
    .name            = "pp7",
    .description     = NULL_IF_CONFIG_SMALL("Apply Postprocessing 7 filter."),
    .priv_size       = sizeof(PP7Context),
    .uninit          = uninit,
    .query_formats   = query_formats,
    .inputs          = pp7_inputs,
    .outputs         = pp7_outputs,
    .priv_class      = &pp7_class,
    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
}

Definition at line 400 of file vf_pp7.c.