FFmpeg  4.3
Macros | Enumerations | Functions | Variables
vf_spp.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "internal.h"
#include "vf_spp.h"

Go to the source code of this file.

Macros

#define OFFSET(x)   offsetof(SPPContext, x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
#define TFLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 
#define STORE(pos)
 
#define STORE16(pos)
 

Enumerations

enum  mode {
  FF_EBUR128_MODE_M = (1 << 0), FF_EBUR128_MODE_S = (1 << 1) | FF_EBUR128_MODE_M, FF_EBUR128_MODE_I = (1 << 2) | FF_EBUR128_MODE_M, FF_EBUR128_MODE_LRA = (1 << 3) | FF_EBUR128_MODE_S,
  FF_EBUR128_MODE_SAMPLE_PEAK = (1 << 4) | FF_EBUR128_MODE_M, MODE_NONE, MODE_RO, MODE_RW,
  MODE_TOGGLE, MODE_RANDOM, NB_MODES, MODE_COVER,
  MODE_BLUR, NB_MODES, MODE_HARD, MODE_SOFT,
  MODE_MEDIUM, MODE_HARD, MODE_SOFT, NB_MODES
}
 

Functions

static const AVClasschild_class_next (const AVClass *prev)
 
static voidchild_next (void *obj, void *prev)
 
static void hardthresh_c (int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
 
static void softthresh_c (int16_t dst[64], const int16_t src[64], int qp, const uint8_t *permutation)
 
static void store_slice_c (uint8_t *dst, const int16_t *src, int dst_linesize, int src_linesize, int width, int height, int log2_scale, const uint8_t dither[8][8])
 
static void store_slice16_c (uint16_t *dst, const int16_t *src, int dst_linesize, int src_linesize, int width, int height, int log2_scale, const uint8_t dither[8][8], int depth)
 
static void add_block (uint16_t *dst, int linesize, const int16_t block[64])
 
static void filter (SPPContext *p, uint8_t *dst, uint8_t *src, int dst_linesize, int src_linesize, int width, int height, const uint8_t *qp_table, int qp_stride, int is_luma, int depth)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_input (AVFilterLink *inlink)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static int process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
 
static av_cold int init_dict (AVFilterContext *ctx, AVDictionary **opts)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption spp_options []
 
static const AVClass spp_class
 
static const uint8_t ldither [8][8]
 
static const uint8_t offset [127][2]
 
static const AVFilterPad spp_inputs []
 
static const AVFilterPad spp_outputs []
 
AVFilter ff_vf_spp
 

Detailed Description

Simple post processing filter

This implementation is based on an algorithm described in "Aria Nosratinia Embedded Post-Processing for Enhancement of Compressed Images (1999)"

Originally written by Michael Niedermayer for the MPlayer project, and ported by Clément Bœsch for FFmpeg.

Definition in file vf_spp.c.

Macro Definition Documentation

◆ OFFSET

#define OFFSET (   x)    offsetof(SPPContext, x)

Definition at line 58 of file vf_spp.c.

◆ FLAGS

Definition at line 59 of file vf_spp.c.

◆ TFLAGS

Definition at line 60 of file vf_spp.c.

◆ STORE

#define STORE (   pos)
Value:
do { \
temp = ((src[x + y*src_linesize + pos] << log2_scale) + d[pos]) >> 6; \
if (temp & 0x100) \
temp = ~(temp >> 31); \
dst[x + y*dst_linesize + pos] = temp; \
} while (0)

◆ STORE16

#define STORE16 (   pos)
Value:
do { \
temp = ((src[x + y*src_linesize + pos] << log2_scale) + (d[pos]>>1)) >> 5; \
if (temp & mask ) \
temp = ~(temp >> 31); \
dst[x + y*dst_linesize + pos] = temp; \
} while (0)

Enumeration Type Documentation

◆ mode

enum mode
Enumerator
FF_EBUR128_MODE_M 

can call ff_ebur128_loudness_momentary

FF_EBUR128_MODE_S 

can call ff_ebur128_loudness_shortterm

FF_EBUR128_MODE_I 

can call ff_ebur128_loudness_global_* and ff_ebur128_relative_threshold

FF_EBUR128_MODE_LRA 

can call ff_ebur128_loudness_range

FF_EBUR128_MODE_SAMPLE_PEAK 

can call ff_ebur128_sample_peak

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

Definition at line 41 of file vf_spp.c.

Function Documentation

◆ child_class_next()

static const AVClass* child_class_next ( const AVClass prev)
static

Definition at line 47 of file vf_spp.c.

◆ child_next()

static void* child_next ( void obj,
void prev 
)
static

Definition at line 52 of file vf_spp.c.

◆ hardthresh_c()

static void hardthresh_c ( int16_t  dst[64],
const int16_t  src[64],
int  qp,
const uint8_t permutation 
)
static

Definition at line 117 of file vf_spp.c.

Referenced by init_dict().

◆ softthresh_c()

static void softthresh_c ( int16_t  dst[64],
const int16_t  src[64],
int  qp,
const uint8_t permutation 
)
static

Definition at line 138 of file vf_spp.c.

Referenced by init_dict().

◆ store_slice_c()

static void store_slice_c ( uint8_t dst,
const int16_t *  src,
int  dst_linesize,
int  src_linesize,
int  width,
int  height,
int  log2_scale,
const uint8_t  dither[8][8] 
)
static

Definition at line 160 of file vf_spp.c.

Referenced by init_dict().

◆ store_slice16_c()

static void store_slice16_c ( uint16_t *  dst,
const int16_t *  src,
int  dst_linesize,
int  src_linesize,
int  width,
int  height,
int  log2_scale,
const uint8_t  dither[8][8],
int  depth 
)
static

Definition at line 190 of file vf_spp.c.

Referenced by filter().

◆ add_block()

static void add_block ( uint16_t *  dst,
int  linesize,
const int16_t  block[64] 
)
inlinestatic

Definition at line 221 of file vf_spp.c.

Referenced by filter().

◆ filter()

static void filter ( SPPContext p,
uint8_t dst,
uint8_t src,
int  dst_linesize,
int  src_linesize,
int  width,
int  height,
const uint8_t qp_table,
int  qp_stride,
int  is_luma,
int  depth 
)
static

Definition at line 237 of file vf_spp.c.

Referenced by filter_frame().

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 309 of file vf_spp.c.

◆ config_input()

static int config_input ( AVFilterLink inlink)
static

Definition at line 334 of file vf_spp.c.

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 358 of file vf_spp.c.

◆ process_command()

static int process_command ( AVFilterContext ctx,
const char *  cmd,
const char *  args,
char *  res,
int  res_len,
int  flags 
)
static

Definition at line 447 of file vf_spp.c.

◆ init_dict()

static av_cold int init_dict ( AVFilterContext ctx,
AVDictionary **  opts 
)
static

Definition at line 462 of file vf_spp.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 489 of file vf_spp.c.

Variable Documentation

◆ spp_options

const AVOption spp_options[]
static
Initial value:
= {
{ "quality", "set quality", OFFSET(log2_count), AV_OPT_TYPE_INT, {.i64 = 3}, 0, MAX_LEVEL, TFLAGS },
{ "qp", "force a constant quantizer parameter", OFFSET(qp), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 63, FLAGS },
{ "mode", "set thresholding mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64 = MODE_HARD}, 0, NB_MODES - 1, 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" },
{ "use_bframe_qp", "use B-frames' QP", OFFSET(use_bframe_qp), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS },
{ NULL }
}

Definition at line 61 of file vf_spp.c.

◆ spp_class

const AVClass spp_class
static
Initial value:
= {
.class_name = "spp",
.item_name = av_default_item_name,
.option = spp_options,
.child_class_next = child_class_next,
}

Definition at line 71 of file vf_spp.c.

◆ ldither

const uint8_t ldither[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 82 of file vf_spp.c.

Referenced by filter().

◆ offset

const uint8_t offset[127][2]
static
Initial value:
= {
{0,0},
{0,0}, {4,4},
{0,0}, {2,2}, {6,4}, {4,6},
{0,0}, {5,1}, {2,2}, {7,3}, {4,4}, {1,5}, {6,6}, {3,7},
{0,0}, {4,0}, {1,1}, {5,1}, {3,2}, {7,2}, {2,3}, {6,3},
{0,4}, {4,4}, {1,5}, {5,5}, {3,6}, {7,6}, {2,7}, {6,7},
{0,0}, {0,2}, {0,4}, {0,6}, {1,1}, {1,3}, {1,5}, {1,7},
{2,0}, {2,2}, {2,4}, {2,6}, {3,1}, {3,3}, {3,5}, {3,7},
{4,0}, {4,2}, {4,4}, {4,6}, {5,1}, {5,3}, {5,5}, {5,7},
{6,0}, {6,2}, {6,4}, {6,6}, {7,1}, {7,3}, {7,5}, {7,7},
{0,0}, {4,4}, {0,4}, {4,0}, {2,2}, {6,6}, {2,6}, {6,2},
{0,2}, {4,6}, {0,6}, {4,2}, {2,0}, {6,4}, {2,4}, {6,0},
{1,1}, {5,5}, {1,5}, {5,1}, {3,3}, {7,7}, {3,7}, {7,3},
{1,3}, {5,7}, {1,7}, {5,3}, {3,1}, {7,5}, {3,5}, {7,1},
{0,1}, {4,5}, {0,5}, {4,1}, {2,3}, {6,7}, {2,7}, {6,3},
{0,3}, {4,7}, {0,7}, {4,3}, {2,1}, {6,5}, {2,5}, {6,1},
{1,0}, {5,4}, {1,4}, {5,0}, {3,2}, {7,6}, {3,6}, {7,2},
{1,2}, {5,6}, {1,6}, {5,2}, {3,0}, {7,4}, {3,4}, {7,0},
}

Definition at line 93 of file vf_spp.c.

Referenced by filter().

◆ spp_inputs

const AVFilterPad spp_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
}

Definition at line 499 of file vf_spp.c.

◆ spp_outputs

const AVFilterPad spp_outputs[]
static
Initial value:
= {
{
.name = "default",
},
{ NULL }
}

Definition at line 509 of file vf_spp.c.

◆ ff_vf_spp

AVFilter ff_vf_spp
Initial value:
= {
.name = "spp",
.description = NULL_IF_CONFIG_SMALL("Apply a simple post processing filter."),
.priv_size = sizeof(SPPContext),
.priv_class = &spp_class,
}

Definition at line 517 of file vf_spp.c.

filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_spp.c:358
spp_options
static const AVOption spp_options[]
Definition: vf_spp.c:61
MODE_SOFT
@ MODE_SOFT
Definition: vf_spp.c:43
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_spp.c:447
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_spp.c:309
x
FFmpeg Automated Testing Environment ************************************Introduction Using FATE from your FFmpeg source directory Submitting the results to the FFmpeg result aggregation server Uploading new samples to the fate suite FATE makefile targets and variables Makefile targets Makefile variables Examples Introduction **************FATE is an extended regression suite on the client side and a means for results aggregation and presentation on the server side The first part of this document explains how you can use FATE from your FFmpeg source directory to test your ffmpeg binary The second part describes how you can run FATE to submit the results to FFmpeg’s FATE server In any way you can have a look at the publicly viewable FATE results by visiting this as it can be seen if some test on some platform broke with their recent contribution This usually happens on the platforms the developers could not test on The second part of this document describes how you can run FATE to submit your results to FFmpeg’s FATE server If you want to submit your results be sure to check that your combination of OS and compiler is not already listed on the above mentioned website In the third part you can find a comprehensive listing of FATE makefile targets and variables Using FATE from your FFmpeg source directory **********************************************If you want to run FATE on your machine you need to have the samples in place You can get the samples via the build target fate rsync Use this command from the top level source this will cause FATE to fail NOTE To use a custom wrapper to run the pass ‘ target exec’ to ‘configure’ or set the TARGET_EXEC Make variable Submitting the results to the FFmpeg result aggregation server ****************************************************************To submit your results to the server you should run fate through the shell script ‘tests fate sh’ from the FFmpeg sources This script needs to be invoked with a configuration file as its first argument tests fate sh path to fate_config A configuration file template with comments describing the individual configuration variables can be found at ‘doc fate_config sh template’ Create a configuration that suits your based on the configuration template The ‘slot’ configuration variable can be any string that is not yet but it is suggested that you name it adhering to the following pattern ‘ARCH OS COMPILER COMPILER VERSION’ The configuration file itself will be sourced in a shell therefore all shell features may be used This enables you to setup the environment as you need it for your build For your first test runs the ‘fate_recv’ variable should be empty or commented out This will run everything as normal except that it will omit the submission of the results to the server The following files should be present in $workdir as specified in the configuration it may help to try out the ‘ssh’ command with one or more ‘ v’ options You should get detailed output concerning your SSH configuration and the authentication process The only thing left is to automate the execution of the fate sh script and the synchronisation of the samples directory Uploading new samples to the fate suite *****************************************If you need a sample uploaded send a mail to samples request This is for developers who have an account on the fate suite server If you upload new please make sure they are as small as space on each network bandwidth and so on benefit from smaller test cases Also keep in mind older checkouts use existing sample that means in practice generally do not remove or overwrite files as it likely would break older checkouts or releases Also all needed samples for a commit should be ideally before the push If you need an account for frequently uploading samples or you wish to help others by doing that send a mail to ffmpeg devel rsync vauL Duo x
Definition: fate.txt:150
child_class_next
static const AVClass * child_class_next(const AVClass *prev)
Definition: vf_spp.c:47
spp_class
static const AVClass spp_class
Definition: vf_spp.c:71
OFFSET
#define OFFSET(x)
Definition: vf_spp.c:58
NB_MODES
@ NB_MODES
Definition: vf_spp.c:44
mask
static const uint16_t mask[17]
Definition: lzw.c:38
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_spp.c:489
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
NULL
#define NULL
Definition: coverity.c:32
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
src
#define src
Definition: vp8dsp.c:254
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
AV_CLASS_CATEGORY_FILTER
@ AV_CLASS_CATEGORY_FILTER
Definition: log.h:37
SPPContext
Definition: vf_spp.h:30
MAX_LEVEL
#define MAX_LEVEL
Definition: rl.h:36
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:186
AVClass::child_next
void *(* child_next)(void *obj, void *prev)
Return next AVOptions-enabled child or NULL.
Definition: log.h:113
TFLAGS
#define TFLAGS
Definition: vf_spp.c:60
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_spp.c:334
init_dict
static av_cold int init_dict(AVFilterContext *ctx, AVDictionary **opts)
Definition: vf_spp.c:462
FLAGS
#define FLAGS
Definition: vf_spp.c:59
spp_inputs
static const AVFilterPad spp_inputs[]
Definition: vf_spp.c:499
pos
unsigned int pos
Definition: spdifenc.c:410
spp_outputs
static const AVFilterPad spp_outputs[]
Definition: vf_spp.c:509
mode
mode
Definition: ebur128.h:83
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:223
temp
else temp
Definition: vf_mcdeint.c:256
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:240
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:133
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:564
child_next
static void * child_next(void *obj, void *prev)
Definition: vf_spp.c:52
MODE_HARD
@ MODE_HARD
Definition: vf_spp.c:42
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:232