FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
vf_fillborders.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/colorspace.h"
#include "libavutil/common.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  Borders
 
struct  FillBordersContext
 

Macros

#define OFFSET(x)   offsetof(FillBordersContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 

Enumerations

enum  { Y, U, V, A }
 
enum  { R, G, B }
 
enum  FillMode {
  FM_SMEAR, FM_MIRROR, FM_FIXED, FM_REFLECT,
  FM_WRAP, FM_FADE, FM_NB_MODES
}
 

Functions

static int query_formats (AVFilterContext *ctx)
 
static void smear_borders8 (FillBordersContext *s, AVFrame *frame)
 
static void smear_borders16 (FillBordersContext *s, AVFrame *frame)
 
static void mirror_borders8 (FillBordersContext *s, AVFrame *frame)
 
static void mirror_borders16 (FillBordersContext *s, AVFrame *frame)
 
static void fixed_borders8 (FillBordersContext *s, AVFrame *frame)
 
static void fixed_borders16 (FillBordersContext *s, AVFrame *frame)
 
static void reflect_borders8 (FillBordersContext *s, AVFrame *frame)
 
static void reflect_borders16 (FillBordersContext *s, AVFrame *frame)
 
static void wrap_borders8 (FillBordersContext *s, AVFrame *frame)
 
static void wrap_borders16 (FillBordersContext *s, AVFrame *frame)
 
static int lerp8 (int fill, int src, int pos, int size)
 
static int lerp16 (int fill, int src, int pos, int size, int depth)
 
static void fade_borders8 (FillBordersContext *s, AVFrame *frame)
 
static void fade_borders16 (FillBordersContext *s, AVFrame *frame)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *frame)
 
static int config_input (AVFilterLink *inlink)
 
static int process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
 
 AVFILTER_DEFINE_CLASS (fillborders)
 

Variables

static const AVOption fillborders_options []
 
static const AVFilterPad fillborders_inputs []
 
static const AVFilterPad fillborders_outputs []
 
const AVFilter ff_vf_fillborders
 

Macro Definition Documentation

◆ OFFSET

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

Definition at line 591 of file vf_fillborders.c.

◆ FLAGS

Definition at line 592 of file vf_fillborders.c.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator

Definition at line 32 of file vf_fillborders.c.

◆ anonymous enum

anonymous enum
Enumerator

Definition at line 33 of file vf_fillborders.c.

◆ FillMode

enum FillMode
Enumerator
FM_SMEAR 
FM_MIRROR 
FM_FIXED 
FM_REFLECT 
FM_WRAP 
FM_FADE 
FM_NB_MODES 

Definition at line 35 of file vf_fillborders.c.

Function Documentation

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 58 of file vf_fillborders.c.

◆ smear_borders8()

static void smear_borders8 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 87 of file vf_fillborders.c.

Referenced by config_input().

◆ smear_borders16()

static void smear_borders16 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 117 of file vf_fillborders.c.

Referenced by config_input().

◆ mirror_borders8()

static void mirror_borders8 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 149 of file vf_fillborders.c.

Referenced by config_input().

◆ mirror_borders16()

static void mirror_borders16 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 182 of file vf_fillborders.c.

Referenced by config_input().

◆ fixed_borders8()

static void fixed_borders8 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 215 of file vf_fillborders.c.

Referenced by config_input().

◆ fixed_borders16()

static void fixed_borders16 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 240 of file vf_fillborders.c.

Referenced by config_input().

◆ reflect_borders8()

static void reflect_borders8 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 273 of file vf_fillborders.c.

Referenced by config_input().

◆ reflect_borders16()

static void reflect_borders16 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 306 of file vf_fillborders.c.

Referenced by config_input().

◆ wrap_borders8()

static void wrap_borders8 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 339 of file vf_fillborders.c.

Referenced by config_input().

◆ wrap_borders16()

static void wrap_borders16 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 372 of file vf_fillborders.c.

Referenced by config_input().

◆ lerp8()

static int lerp8 ( int  fill,
int  src,
int  pos,
int  size 
)
static

Definition at line 405 of file vf_fillborders.c.

Referenced by fade_borders8().

◆ lerp16()

static int lerp16 ( int  fill,
int  src,
int  pos,
int  size,
int  depth 
)
static

Definition at line 410 of file vf_fillborders.c.

Referenced by fade_borders16().

◆ fade_borders8()

static void fade_borders8 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 415 of file vf_fillborders.c.

Referenced by config_input().

◆ fade_borders16()

static void fade_borders16 ( FillBordersContext s,
AVFrame frame 
)
static

Definition at line 456 of file vf_fillborders.c.

Referenced by config_input().

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame frame 
)
static

Definition at line 498 of file vf_fillborders.c.

◆ config_input()

static int config_input ( AVFilterLink inlink)
static

Definition at line 507 of file vf_fillborders.c.

Referenced by process_command().

◆ 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 579 of file vf_fillborders.c.

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( fillborders  )

Variable Documentation

◆ fillborders_options

const AVOption fillborders_options[]
static
Initial value:
= {
{ "left", "set the left fill border", OFFSET(left), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
{ "right", "set the right fill border", OFFSET(right), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
{ "top", "set the top fill border", OFFSET(top), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
{ "bottom", "set the bottom fill border", OFFSET(bottom), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
{ "mode", "set the fill borders mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=FM_SMEAR}, 0, FM_NB_MODES-1, FLAGS, "mode" },
{ "smear", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_SMEAR}, 0, 0, FLAGS, "mode" },
{ "mirror", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_MIRROR}, 0, 0, FLAGS, "mode" },
{ "fixed", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_FIXED}, 0, 0, FLAGS, "mode" },
{ "reflect",NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_REFLECT},0, 0, FLAGS, "mode" },
{ "wrap", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_WRAP}, 0, 0, FLAGS, "mode" },
{ "fade", NULL, 0, AV_OPT_TYPE_CONST, {.i64=FM_FADE}, 0, 0, FLAGS, "mode" },
{ "color", "set the color for the fixed/fade mode", OFFSET(rgba_color), AV_OPT_TYPE_COLOR, {.str = "black"}, .flags = FLAGS },
{ NULL }
}

Definition at line 594 of file vf_fillborders.c.

◆ fillborders_inputs

const AVFilterPad fillborders_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
.filter_frame = filter_frame,
.needs_writable = 1,
},
{ NULL }
}

Definition at line 612 of file vf_fillborders.c.

◆ fillborders_outputs

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

Definition at line 623 of file vf_fillborders.c.

◆ ff_vf_fillborders

const AVFilter ff_vf_fillborders
Initial value:
= {
.name = "fillborders",
.description = NULL_IF_CONFIG_SMALL("Fill borders of the input video."),
.priv_size = sizeof(FillBordersContext),
.priv_class = &fillborders_class,
}

Definition at line 631 of file vf_fillborders.c.

filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
Definition: vf_fillborders.c:498
FM_WRAP
@ FM_WRAP
Definition: vf_fillborders.c:35
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
OFFSET
#define OFFSET(x)
Definition: vf_fillborders.c:591
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_fillborders.c:579
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
FM_FADE
@ FM_FADE
Definition: vf_fillborders.c:35
NULL
#define NULL
Definition: coverity.c:32
FillBordersContext
Definition: vf_fillborders.c:41
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_fillborders.c:58
AV_OPT_TYPE_COLOR
@ AV_OPT_TYPE_COLOR
Definition: opt.h:240
FM_FIXED
@ FM_FIXED
Definition: vf_fillborders.c:35
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:117
FLAGS
#define FLAGS
Definition: vf_fillborders.c:592
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:126
fillborders_outputs
static const AVFilterPad fillborders_outputs[]
Definition: vf_fillborders.c:623
FM_MIRROR
@ FM_MIRROR
Definition: vf_fillborders.c:35
left
Tag MUST be and< 10hcoeff half pel interpolation filter coefficients, hcoeff[0] are the 2 middle coefficients[1] are the next outer ones and so on, resulting in a filter like:...eff[2], hcoeff[1], hcoeff[0], hcoeff[0], hcoeff[1], hcoeff[2] ... the sign of the coefficients is not explicitly stored but alternates after each coeff and coeff[0] is positive, so ...,+,-,+,-,+,+,-,+,-,+,... hcoeff[0] is not explicitly stored but found by subtracting the sum of all stored coefficients with signs from 32 hcoeff[0]=32 - hcoeff[1] - hcoeff[2] - ... a good choice for hcoeff and htaps is htaps=6 hcoeff={40,-10, 2} an alternative which requires more computations at both encoder and decoder side and may or may not be better is htaps=8 hcoeff={42,-14, 6,-2}ref_frames minimum of the number of available reference frames and max_ref_frames for example the first frame after a key frame always has ref_frames=1spatial_decomposition_type wavelet type 0 is a 9/7 symmetric compact integer wavelet 1 is a 5/3 symmetric compact integer wavelet others are reserved stored as delta from last, last is reset to 0 if always_reset||keyframeqlog quality(logarithmic quantizer scale) stored as delta from last, last is reset to 0 if always_reset||keyframemv_scale stored as delta from last, last is reset to 0 if always_reset||keyframe FIXME check that everything works fine if this changes between framesqbias dequantization bias stored as delta from last, last is reset to 0 if always_reset||keyframeblock_max_depth maximum depth of the block tree stored as delta from last, last is reset to 0 if always_reset||keyframequant_table quantization tableHighlevel bitstream structure:==============================--------------------------------------------|Header|--------------------------------------------|------------------------------------|||Block0||||split?||||yes no||||......... intra?||||:Block01 :yes no||||:Block02 :....... ..........||||:Block03 ::y DC ::ref index:||||:Block04 ::cb DC ::motion x :||||......... :cr DC ::motion y :||||....... ..........|||------------------------------------||------------------------------------|||Block1|||...|--------------------------------------------|------------ ------------ ------------|||Y subbands||Cb subbands||Cr subbands||||--- ---||--- ---||--- ---|||||LL0||HL0||||LL0||HL0||||LL0||HL0|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||LH0||HH0||||LH0||HH0||||LH0||HH0|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||HL1||LH1||||HL1||LH1||||HL1||LH1|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||HH1||HL2||||HH1||HL2||||HH1||HL2|||||...||...||...|||------------ ------------ ------------|--------------------------------------------Decoding process:=================------------|||Subbands|------------||||------------|Intra DC||||LL0 subband prediction ------------|\ Dequantization ------------------- \||Reference frames|\ IDWT|------- -------|Motion \|||Frame 0||Frame 1||Compensation . OBMC v -------|------- -------|--------------. \------> Frame n output Frame Frame<----------------------------------/|...|------------------- Range Coder:============Binary Range Coder:------------------- The implemented range coder is an adapted version based upon "Range encoding: an algorithm for removing redundancy from a digitised message." by G. N. N. Martin. The symbols encoded by the Snow range coder are bits(0|1). The associated probabilities are not fix but change depending on the symbol mix seen so far. bit seen|new state ---------+----------------------------------------------- 0|256 - state_transition_table[256 - old_state];1|state_transition_table[old_state];state_transition_table={ 0, 0, 0, 0, 0, 0, 0, 0, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 190, 191, 192, 194, 194, 195, 196, 197, 198, 199, 200, 201, 202, 202, 204, 205, 206, 207, 208, 209, 209, 210, 211, 212, 213, 215, 215, 216, 217, 218, 219, 220, 220, 222, 223, 224, 225, 226, 227, 227, 229, 229, 230, 231, 232, 234, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 248, 0, 0, 0, 0, 0, 0, 0};FIXME Range Coding of integers:------------------------- FIXME Neighboring Blocks:===================left and top are set to the respective blocks unless they are outside of the image in which case they are set to the Null block top-left is set to the top left block unless it is outside of the image in which case it is set to the left block if this block has no larger parent block or it is at the left side of its parent block and the top right block is not outside of the image then the top right block is used for top-right else the top-left block is used Null block y, cb, cr are 128 level, ref, mx and my are 0 Motion Vector Prediction:=========================1. the motion vectors of all the neighboring blocks are scaled to compensate for the difference of reference frames scaled_mv=(mv *(256 *(current_reference+1)/(mv.reference+1))+128)> the median of the scaled left
Definition: snow.txt:386
FM_REFLECT
@ FM_REFLECT
Definition: vf_fillborders.c:35
FM_SMEAR
@ FM_SMEAR
Definition: vf_fillborders.c:35
mode
mode
Definition: ebur128.h:83
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
FM_NB_MODES
@ FM_NB_MODES
Definition: vf_fillborders.c:35
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_fillborders.c:507
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
fillborders_inputs
static const AVFilterPad fillborders_inputs[]
Definition: vf_fillborders.c:612
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:234