FFmpeg
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#include "libavutil/colorspace.h"
#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "framesync.h"
#include "internal.h"
#include "video.h"
Go to the source code of this file.
Data Structures | |
struct | RemapContext |
struct | ThreadData |
Used for passing data between threads. More... | |
Macros | |
#define | OFFSET(x) offsetof(RemapContext, x) |
#define | FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
#define | DEFINE_REMAP_PLANAR_FUNC(name, bits, div) |
remap_planar algorithm expects planes of same size pixels are copied from source to target using : Target_frame[y][x] = Source_frame[ ymap[y][x] ][ [xmap[y][x] ]; More... | |
#define | DEFINE_REMAP_PACKED_FUNC(name, bits, div) |
remap_packed algorithm expects pixels with both padded bits (step) and number of components correctly set. More... | |
Functions | |
AVFILTER_DEFINE_CLASS (remap) | |
static int | query_formats (AVFilterContext *ctx) |
static int | config_input (AVFilterLink *inlink) |
static int | process_frame (FFFrameSync *fs) |
static int | config_output (AVFilterLink *outlink) |
static int | activate (AVFilterContext *ctx) |
static av_cold void | uninit (AVFilterContext *ctx) |
Variables | |
static const AVOption | remap_options [] |
static const AVFilterPad | remap_inputs [] |
static const AVFilterPad | remap_outputs [] |
const AVFilter | ff_vf_remap |
Pixel remap filter This filter copies pixel by pixel a source frame to a target frame. It remaps the pixels to a new x,y destination based on two files ymap/xmap. Map files are passed as a parameter and are in PGM format (P2 or P5), where the values are y(rows)/x(cols) coordinates of the source_frame. The target frame dimension is based on mapfile dimensions: specified in the header of the mapfile and reflected in the number of datavalues. Dimensions of ymap and xmap must be equal. Datavalues must be positive or zero. Any datavalue in the ymap or xmap which value is higher then the source frame height or width is silently ignored, leaving a blank/chromakey pixel. This can safely be used as a feature to create overlays.
Algorithm digest: Target_frame[y][x] = Source_frame[ ymap[y][x] ][ [xmap[y][x] ];
Definition in file vf_remap.c.
#define OFFSET | ( | x | ) | offsetof(RemapContext, x) |
Definition at line 65 of file vf_remap.c.
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
Definition at line 66 of file vf_remap.c.
remap_planar algorithm expects planes of same size pixels are copied from source to target using : Target_frame[y][x] = Source_frame[ ymap[y][x] ][ [xmap[y][x] ];
Definition at line 134 of file vf_remap.c.
remap_packed algorithm expects pixels with both padded bits (step) and number of components correctly set.
pixels are copied from source to target using : Target_frame[y][x] = Source_frame[ ymap[y][x] ][ [xmap[y][x] ];
Definition at line 185 of file vf_remap.c.
AVFILTER_DEFINE_CLASS | ( | remap | ) |
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Definition at line 85 of file vf_remap.c.
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Definition at line 229 of file vf_remap.c.
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Definition at line 273 of file vf_remap.c.
Referenced by config_output().
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Definition at line 309 of file vf_remap.c.
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Definition at line 359 of file vf_remap.c.
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Definition at line 365 of file vf_remap.c.
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Definition at line 68 of file vf_remap.c.
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Definition at line 372 of file vf_remap.c.
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Definition at line 388 of file vf_remap.c.
const AVFilter ff_vf_remap |
Definition at line 396 of file vf_remap.c.