FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
vf_overlay.c File Reference
#include "avfilter.h"
#include "formats.h"
#include "libavutil/common.h"
#include "libavutil/eval.h"
#include "libavutil/avstring.h"
#include "libavutil/pixdesc.h"
#include "libavutil/imgutils.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/timestamp.h"
#include "internal.h"
#include "drawutils.h"
#include "framesync.h"
#include "video.h"
#include "vf_overlay.h"

Go to the source code of this file.

Data Structures

struct  ThreadData
 Used for passing data between threads. More...
 

Macros

#define MAIN   0
 
#define OVERLAY   1
 
#define R   0
 
#define G   1
 
#define B   2
 
#define A   3
 
#define Y   0
 
#define U   1
 
#define V   2
 
#define FAST_DIV255(x)   ((((x) + 128) * 257) >> 16)
 
#define UNPREMULTIPLY_ALPHA(x, y)   ((((x) << 16) - ((x) << 9) + (x)) / ((((x) + (y)) << 8) - ((x) + (y)) - (y) * (x)))
 
#define DEFINE_BLEND_PLANE(depth, nbits)
 
#define DEFINE_ALPHA_COMPOSITE(depth, nbits)
 
#define DEFINE_BLEND_SLICE_YUV(depth, nbits)
 
#define OFFSET(x)   offsetof(OverlayContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
 

Enumerations

enum  EvalMode {
  EVAL_MODE_ONCE, EVAL_MODE_FRAME, EVAL_MODE_NB, EVAL_MODE_INIT,
  EVAL_MODE_FRAME, EVAL_MODE_NB, EVAL_MODE_INIT, EVAL_MODE_FRAME,
  EVAL_MODE_NB, EVAL_MODE_INIT, EVAL_MODE_FRAME, EVAL_MODE_NB,
  EVAL_MODE_INIT, EVAL_MODE_FRAME, EVAL_MODE_NB, EVAL_MODE_INIT,
  EVAL_MODE_FRAME, EVAL_MODE_NB, EVAL_MODE_INIT, EVAL_MODE_FRAME,
  EVAL_MODE_NB, EVAL_MODE_INIT, EVAL_MODE_FRAME, EVAL_MODE_NB,
  EVAL_MODE_INIT, EVAL_MODE_FRAME, EVAL_MODE_NB
}
 

Functions

static av_cold void uninit (AVFilterContext *ctx)
 
static int normalize_xy (double d, int chroma_sub)
 
static void eval_expr (AVFilterContext *ctx)
 
static int set_expr (AVExpr **pexpr, const char *expr, const char *option, void *log_ctx)
 
static int process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_input_overlay (AVFilterLink *inlink)
 
static int config_output (AVFilterLink *outlink)
 
static av_always_inline void blend_slice_packed_rgb (AVFilterContext *ctx, AVFrame *dst, const AVFrame *src, int main_has_alpha, int x, int y, int is_straight, int jobnr, int nb_jobs)
 Blend image in src to destination buffer dst at position (x, y). More...
 
static av_always_inline void blend_slice_planar_rgb (AVFilterContext *ctx, AVFrame *dst, const AVFrame *src, int hsub, int vsub, int main_has_alpha, int x, int y, int is_straight, int jobnr, int nb_jobs)
 
static int blend_slice_yuv420 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuva420 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuv420p10 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuva420p10 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuv422p10 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuva422p10 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuv422 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuva422 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuv444 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuva444 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_gbrp (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_gbrap (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuv420_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuva420_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuv422_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuva422_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuv444_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_yuva444_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_gbrp_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_gbrap_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_rgb (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_rgba (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_rgb_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int blend_slice_rgba_pm (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int config_input_main (AVFilterLink *inlink)
 
static int do_blend (FFFrameSync *fs)
 
static av_cold int init (AVFilterContext *ctx)
 
static int activate (AVFilterContext *ctx)
 
 FRAMESYNC_DEFINE_CLASS (overlay, OverlayContext, fs)
 

Variables

static const char *const var_names []
 
static enum AVPixelFormat alpha_pix_fmts []
 
static const AVOption overlay_options []
 
static const AVFilterPad avfilter_vf_overlay_inputs []
 
static const AVFilterPad avfilter_vf_overlay_outputs []
 
const AVFilter ff_vf_overlay
 

Detailed Description

overlay one video on top of another

Definition in file vf_overlay.c.

Macro Definition Documentation

◆ MAIN

#define MAIN   0

Definition at line 63 of file vf_overlay.c.

◆ OVERLAY

#define OVERLAY   1

Definition at line 64 of file vf_overlay.c.

◆ R

#define R   0

Definition at line 66 of file vf_overlay.c.

◆ G

#define G   1

Definition at line 67 of file vf_overlay.c.

◆ B

#define B   2

Definition at line 68 of file vf_overlay.c.

◆ A

#define A   3

Definition at line 69 of file vf_overlay.c.

◆ Y

#define Y   0

Definition at line 71 of file vf_overlay.c.

◆ U

#define U   1

Definition at line 72 of file vf_overlay.c.

◆ V

#define V   2

Definition at line 73 of file vf_overlay.c.

◆ FAST_DIV255

#define FAST_DIV255 (   x)    ((((x) + 128) * 257) >> 16)

Definition at line 337 of file vf_overlay.c.

◆ UNPREMULTIPLY_ALPHA

#define UNPREMULTIPLY_ALPHA (   x,
 
)    ((((x) << 16) - ((x) << 9) + (x)) / ((((x) + (y)) << 8) - ((x) + (y)) - (y) * (x)))

Definition at line 343 of file vf_overlay.c.

◆ DEFINE_BLEND_PLANE

#define DEFINE_BLEND_PLANE (   depth,
  nbits 
)

Definition at line 436 of file vf_overlay.c.

◆ DEFINE_ALPHA_COMPOSITE

#define DEFINE_ALPHA_COMPOSITE (   depth,
  nbits 
)

Definition at line 563 of file vf_overlay.c.

◆ DEFINE_BLEND_SLICE_YUV

#define DEFINE_BLEND_SLICE_YUV (   depth,
  nbits 
)
Value:
static av_always_inline void blend_slice_yuv_##depth##_##nbits##bits(AVFilterContext *ctx, \
AVFrame *dst, const AVFrame *src, \
int hsub, int vsub, \
int main_has_alpha, \
int x, int y, \
int is_straight, \
int jobnr, int nb_jobs) \
{ \
OverlayContext *s = ctx->priv; \
const int src_w = src->width; \
const int src_h = src->height; \
const int dst_w = dst->width; \
const int dst_h = dst->height; \
\
blend_plane_##depth##_##nbits##bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 0, 0, 0, \
x, y, main_has_alpha, s->main_desc->comp[0].plane, s->main_desc->comp[0].offset, \
s->main_desc->comp[0].step, is_straight, 1, jobnr, nb_jobs); \
blend_plane_##depth##_##nbits##bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 1, hsub, vsub, \
x, y, main_has_alpha, s->main_desc->comp[1].plane, s->main_desc->comp[1].offset, \
s->main_desc->comp[1].step, is_straight, 1, jobnr, nb_jobs); \
blend_plane_##depth##_##nbits##bits(ctx, dst, src, src_w, src_h, dst_w, dst_h, 2, hsub, vsub, \
x, y, main_has_alpha, s->main_desc->comp[2].plane, s->main_desc->comp[2].offset, \
s->main_desc->comp[2].step, is_straight, 1, jobnr, nb_jobs); \
if (main_has_alpha) \
alpha_composite_##depth##_##nbits##bits(src, dst, src_w, src_h, dst_w, dst_h, x, y, \
jobnr, nb_jobs); \
}

Definition at line 616 of file vf_overlay.c.

◆ OFFSET

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

Definition at line 1053 of file vf_overlay.c.

◆ FLAGS

Definition at line 1054 of file vf_overlay.c.

Enumeration Type Documentation

◆ EvalMode

enum EvalMode
Enumerator
EVAL_MODE_ONCE 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 

Definition at line 75 of file vf_overlay.c.

Function Documentation

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 81 of file vf_overlay.c.

◆ normalize_xy()

static int normalize_xy ( double  d,
int  chroma_sub 
)
inlinestatic

Definition at line 90 of file vf_overlay.c.

Referenced by eval_expr().

◆ eval_expr()

static void eval_expr ( AVFilterContext ctx)
static

Definition at line 97 of file vf_overlay.c.

Referenced by config_input_overlay(), do_blend(), and process_command().

◆ set_expr()

static int set_expr ( AVExpr **  pexpr,
const char *  expr,
const char *  option,
void *  log_ctx 
)
static

Definition at line 109 of file vf_overlay.c.

Referenced by config_input_overlay(), and 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 130 of file vf_overlay.c.

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 162 of file vf_overlay.c.

◆ config_input_overlay()

static int config_input_overlay ( AVFilterLink inlink)
static

Definition at line 272 of file vf_overlay.c.

◆ config_output()

static int config_output ( AVFilterLink outlink)
static

Definition at line 319 of file vf_overlay.c.

◆ blend_slice_packed_rgb()

static av_always_inline void blend_slice_packed_rgb ( AVFilterContext ctx,
AVFrame dst,
const AVFrame src,
int  main_has_alpha,
int  x,
int  y,
int  is_straight,
int  jobnr,
int  nb_jobs 
)
static

Blend image in src to destination buffer dst at position (x, y).

< the amount of overlay to blend on to main

Definition at line 349 of file vf_overlay.c.

Referenced by blend_slice_rgb(), blend_slice_rgb_pm(), blend_slice_rgba(), and blend_slice_rgba_pm().

◆ blend_slice_planar_rgb()

static av_always_inline void blend_slice_planar_rgb ( AVFilterContext ctx,
AVFrame dst,
const AVFrame src,
int  hsub,
int  vsub,
int  main_has_alpha,
int  x,
int  y,
int  is_straight,
int  jobnr,
int  nb_jobs 
)
static

◆ blend_slice_yuv420()

static int blend_slice_yuv420 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 677 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuva420()

static int blend_slice_yuva420 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 685 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuv420p10()

static int blend_slice_yuv420p10 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 693 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuva420p10()

static int blend_slice_yuva420p10 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 701 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuv422p10()

static int blend_slice_yuv422p10 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 709 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuva422p10()

static int blend_slice_yuva422p10 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 717 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuv422()

static int blend_slice_yuv422 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 725 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuva422()

static int blend_slice_yuva422 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 733 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuv444()

static int blend_slice_yuv444 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 741 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuva444()

static int blend_slice_yuva444 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 749 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_gbrp()

static int blend_slice_gbrp ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 757 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_gbrap()

static int blend_slice_gbrap ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 765 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuv420_pm()

static int blend_slice_yuv420_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 773 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuva420_pm()

static int blend_slice_yuva420_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 781 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuv422_pm()

static int blend_slice_yuv422_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 789 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuva422_pm()

static int blend_slice_yuva422_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 797 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuv444_pm()

static int blend_slice_yuv444_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 805 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_yuva444_pm()

static int blend_slice_yuva444_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 813 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_gbrp_pm()

static int blend_slice_gbrp_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 821 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_gbrap_pm()

static int blend_slice_gbrap_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 829 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_rgb()

static int blend_slice_rgb ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 837 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_rgba()

static int blend_slice_rgba ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 845 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_rgb_pm()

static int blend_slice_rgb_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 853 of file vf_overlay.c.

Referenced by config_input_main().

◆ blend_slice_rgba_pm()

static int blend_slice_rgba_pm ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 861 of file vf_overlay.c.

Referenced by config_input_main().

◆ config_input_main()

static int config_input_main ( AVFilterLink inlink)
static

Definition at line 869 of file vf_overlay.c.

◆ do_blend()

static int do_blend ( FFFrameSync fs)
static

Definition at line 993 of file vf_overlay.c.

Referenced by init().

◆ init()

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 1039 of file vf_overlay.c.

◆ activate()

static int activate ( AVFilterContext ctx)
static

Definition at line 1047 of file vf_overlay.c.

◆ FRAMESYNC_DEFINE_CLASS()

FRAMESYNC_DEFINE_CLASS ( overlay  ,
OverlayContext  ,
fs   
)

Variable Documentation

◆ var_names

const char* const var_names[]
static
Initial value:
= {
"main_w", "W",
"main_h", "H",
"overlay_w", "w",
"overlay_h", "h",
"hsub",
"vsub",
"x",
"y",
"n",
"pos",
"t",
}

Definition at line 48 of file vf_overlay.c.

Referenced by set_expr().

◆ alpha_pix_fmts

enum AVPixelFormat alpha_pix_fmts[]
static

◆ overlay_options

const AVOption overlay_options[]
static
Initial value:
= {
{ "x", "set the x expression", OFFSET(x_expr), AV_OPT_TYPE_STRING, {.str = "0"}, 0, 0, FLAGS },
{ "y", "set the y expression", OFFSET(y_expr), AV_OPT_TYPE_STRING, {.str = "0"}, 0, 0, FLAGS },
{ "eof_action", "Action to take when encountering EOF from secondary input ",
OFFSET(fs.opt_eof_action), AV_OPT_TYPE_INT, { .i64 = EOF_ACTION_REPEAT },
EOF_ACTION_REPEAT, EOF_ACTION_PASS, .flags = FLAGS, "eof_action" },
{ "repeat", "Repeat the previous frame.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_REPEAT }, .flags = FLAGS, "eof_action" },
{ "endall", "End both streams.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_ENDALL }, .flags = FLAGS, "eof_action" },
{ "pass", "Pass through the main input.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_PASS }, .flags = FLAGS, "eof_action" },
{ "eval", "specify when to evaluate expressions", OFFSET(eval_mode), AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_FRAME}, 0, EVAL_MODE_NB-1, FLAGS, "eval" },
{ "init", "eval expressions once during initialization", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT}, .flags = FLAGS, .unit = "eval" },
{ "frame", "eval expressions per-frame", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = FLAGS, .unit = "eval" },
{ "shortest", "force termination when the shortest input terminates", OFFSET(fs.opt_shortest), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
{ "format", "set output format", OFFSET(format), AV_OPT_TYPE_INT, {.i64=OVERLAY_FORMAT_YUV420}, 0, OVERLAY_FORMAT_NB-1, FLAGS, "format" },
{ "yuv420", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV420}, .flags = FLAGS, .unit = "format" },
{ "yuv420p10", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV420P10}, .flags = FLAGS, .unit = "format" },
{ "yuv422", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV422}, .flags = FLAGS, .unit = "format" },
{ "yuv422p10", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV422P10}, .flags = FLAGS, .unit = "format" },
{ "yuv444", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_YUV444}, .flags = FLAGS, .unit = "format" },
{ "rgb", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_RGB}, .flags = FLAGS, .unit = "format" },
{ "gbrp", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_GBRP}, .flags = FLAGS, .unit = "format" },
{ "auto", "", 0, AV_OPT_TYPE_CONST, {.i64=OVERLAY_FORMAT_AUTO}, .flags = FLAGS, .unit = "format" },
{ "repeatlast", "repeat overlay of the last overlay frame", OFFSET(fs.opt_repeatlast), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
{ "alpha", "alpha format", OFFSET(alpha_format), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "alpha_format" },
{ "straight", "", 0, AV_OPT_TYPE_CONST, {.i64=0}, .flags = FLAGS, .unit = "alpha_format" },
{ "premultiplied", "", 0, AV_OPT_TYPE_CONST, {.i64=1}, .flags = FLAGS, .unit = "alpha_format" },
{ NULL }
}

Definition at line 1056 of file vf_overlay.c.

◆ avfilter_vf_overlay_inputs

const AVFilterPad avfilter_vf_overlay_inputs[]
static
Initial value:
= {
{
.name = "main",
.config_props = config_input_main,
},
{
.name = "overlay",
.config_props = config_input_overlay,
},
}

Definition at line 1087 of file vf_overlay.c.

◆ avfilter_vf_overlay_outputs

const AVFilterPad avfilter_vf_overlay_outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_output,
},
}

Definition at line 1100 of file vf_overlay.c.

◆ ff_vf_overlay

const AVFilter ff_vf_overlay
Initial value:
= {
.name = "overlay",
.description = NULL_IF_CONFIG_SMALL("Overlay a video source on top of the input."),
.preinit = overlay_framesync_preinit,
.init = init,
.uninit = uninit,
.priv_size = sizeof(OverlayContext),
.priv_class = &overlay_class,
}

Definition at line 1108 of file vf_overlay.c.

avfilter_vf_overlay_outputs
static const AVFilterPad avfilter_vf_overlay_outputs[]
Definition: vf_overlay.c:1100
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:310
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:428
EOF_ACTION_ENDALL
@ EOF_ACTION_ENDALL
Definition: framesync.h:28
FILTER_QUERY_FUNC
#define FILTER_QUERY_FUNC(func)
Definition: internal.h:168
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:429
hsub
static void hsub(htype *dst, const htype *src, int bins)
Definition: vf_median.c:74
OVERLAY_FORMAT_RGB
@ OVERLAY_FORMAT_RGB
Definition: vf_overlay.h:48
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
OVERLAY_FORMAT_YUV422P10
@ OVERLAY_FORMAT_YUV422P10
Definition: vf_overlay.h:46
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_overlay.c:162
config_input_main
static int config_input_main(AVFilterLink *inlink)
Definition: vf_overlay.c:869
EVAL_MODE_FRAME
@ EVAL_MODE_FRAME
Definition: vf_overlay.c:77
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:101
OVERLAY_FORMAT_YUV422
@ OVERLAY_FORMAT_YUV422
Definition: vf_overlay.h:45
bits
uint8_t bits
Definition: vp3data.h:141
ctx
AVFormatContext * ctx
Definition: movenc.c:48
EOF_ACTION_PASS
@ EOF_ACTION_PASS
Definition: framesync.h:29
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:191
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
if
if(ret)
Definition: filter_design.txt:179
config_input_overlay
static int config_input_overlay(AVFilterLink *inlink)
Definition: vf_overlay.c:272
NULL
#define NULL
Definition: coverity.c:32
EVAL_MODE_NB
@ EVAL_MODE_NB
Definition: vf_overlay.c:78
fs
#define fs(width, name, subs,...)
Definition: cbs_vp9.c:259
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_overlay.c:81
src
#define src
Definition: vp8dsp.c:255
OverlayContext
Definition: vf_overlay.h:54
AV_PIX_FMT_ABGR
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:94
avfilter_vf_overlay_inputs
static const AVFilterPad avfilter_vf_overlay_inputs[]
Definition: vf_overlay.c:1087
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
OVERLAY_FORMAT_NB
@ OVERLAY_FORMAT_NB
Definition: vf_overlay.h:51
OVERLAY_FORMAT_YUV420P10
@ OVERLAY_FORMAT_YUV420P10
Definition: vf_overlay.h:44
OVERLAY_FORMAT_YUV420
@ OVERLAY_FORMAT_YUV420
Definition: vf_overlay.h:43
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_overlay.c:319
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:167
OVERLAY_FORMAT_AUTO
@ OVERLAY_FORMAT_AUTO
Definition: vf_overlay.h:50
AV_PIX_FMT_ARGB
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:92
FLAGS
#define FLAGS
Definition: vf_overlay.c:1054
av_always_inline
#define av_always_inline
Definition: attributes.h:49
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_overlay.c:130
EOF_ACTION_REPEAT
@ EOF_ACTION_REPEAT
Definition: framesync.h:27
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
activate
static int activate(AVFilterContext *ctx)
Definition: vf_overlay.c:1047
AVFilterContext
An instance of a filter.
Definition: avfilter.h:386
OVERLAY_FORMAT_GBRP
@ OVERLAY_FORMAT_GBRP
Definition: vf_overlay.h:49
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:121
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
OVERLAY_FORMAT_YUV444
@ OVERLAY_FORMAT_YUV444
Definition: vf_overlay.h:47
_
#define _
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:241
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:192
format
fg outputs[0] format
Definition: ffmpeg_filter.c:175
EVAL_MODE_INIT
@ EVAL_MODE_INIT
Definition: vf_overlay.c:76
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:138
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:228
OFFSET
#define OFFSET(x)
Definition: vf_overlay.c:1053
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:233
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:166
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_overlay.c:1039