vf_overlay_vaapi.c File Reference

#include <string.h>
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "framesync.h"
#include "vaapi_vpp.h"
#include "video.h"
#include "libavutil/eval.h"

Go to the source code of this file.

Data Structures
struct	OverlayVAAPIContext

Macros
#define	PARSE_EXPR(e, s)
#define	OFFSET(x)
#define	FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Enumerations
enum	var_name {   VAR_MAIN_IW , VAR_MW , VAR_MAIN_IH , VAR_MH ,   VAR_OVERLAY_IW , VAR_OVERLAY_IH , VAR_OVERLAY_X , VAR_OX ,   VAR_OVERLAY_Y , VAR_OY , VAR_OVERLAY_W , VAR_OW ,   VAR_OVERLAY_H , VAR_OH , VAR_VARS_NB }

Functions
static int	eval_expr (AVFilterContext *avctx)
static int	overlay_vaapi_build_filter_params (AVFilterContext *avctx)
static int	overlay_vaapi_blend (FFFrameSync *fs)
static int	have_alpha_planar (AVFilterLink *link)
static int	overlay_vaapi_config_input_main (AVFilterLink *inlink)
static int	overlay_vaapi_config_input_overlay (AVFilterLink *inlink)
static int	overlay_vaapi_config_output (AVFilterLink *outlink)
static av_cold int	overlay_vaapi_init (AVFilterContext *avctx)
static int	overlay_vaapi_activate (AVFilterContext *avctx)
static av_cold void	overlay_vaapi_uninit (AVFilterContext *avctx)
	FRAMESYNC_DEFINE_CLASS (overlay_vaapi, OverlayVAAPIContext, fs)

Variables
static const char *const	var_names []
static const AVOption	overlay_vaapi_options []
static const AVFilterPad	overlay_vaapi_inputs []
static const AVFilterPad	overlay_vaapi_outputs []
const FFFilter	ff_vf_overlay_vaapi

Macro Definition Documentation

PARSE_EXPR

#define PARSE_EXPR	(		e,
			s )

Value:

    {\
    ret = av_expr_parse(&(e), s, var_names, NULL, NULL, NULL, NULL, 0, ctx); \
    if (ret < 0) {\
        av_log(ctx, AV_LOG_ERROR, "Error when parsing '%s'.\n", s);\
        goto release;\
    }\
}

Referenced by eval_expr(), and qrencode_config_input().

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(OverlayVAAPIContext, x)

Definition at line 375 of file vf_overlay_vaapi.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 376 of file vf_overlay_vaapi.c.

Enumeration Type Documentation

var_name

enum var_name

Enumerator
VAR_MAIN_IW
VAR_MW
VAR_MAIN_IH
VAR_MH
VAR_OVERLAY_IW
VAR_OVERLAY_IH
VAR_OVERLAY_X
VAR_OX
VAR_OVERLAY_Y
VAR_OY
VAR_OVERLAY_W
VAR_OW
VAR_OVERLAY_H
VAR_OH
VAR_VARS_NB

Definition at line 30 of file vf_overlay_vaapi.c.

Function Documentation

eval_expr()

static int eval_expr ( AVFilterContext * avctx )

static

Definition at line 72 of file vf_overlay_vaapi.c.

Referenced by overlay_vaapi_config_input_overlay().

overlay_vaapi_build_filter_params()

static int overlay_vaapi_build_filter_params ( AVFilterContext * avctx )

static

Definition at line 128 of file vf_overlay_vaapi.c.

Referenced by overlay_vaapi_config_output().

overlay_vaapi_blend()

static int overlay_vaapi_blend ( FFFrameSync * fs )

static

< Blend State

Definition at line 160 of file vf_overlay_vaapi.c.

Referenced by overlay_vaapi_config_output().

have_alpha_planar()

static int have_alpha_planar ( AVFilterLink * link )

static

Definition at line 257 of file vf_overlay_vaapi.c.

Referenced by overlay_vaapi_config_input_overlay().

overlay_vaapi_config_input_main()

static int overlay_vaapi_config_input_main ( AVFilterLink * inlink )

static

Definition at line 276 of file vf_overlay_vaapi.c.

overlay_vaapi_config_input_overlay()

static int overlay_vaapi_config_input_overlay ( AVFilterLink * inlink )

static

Definition at line 289 of file vf_overlay_vaapi.c.

overlay_vaapi_config_output()

static int overlay_vaapi_config_output ( AVFilterLink * outlink )

static

Definition at line 321 of file vf_overlay_vaapi.c.

overlay_vaapi_init()

static av_cold int overlay_vaapi_init ( AVFilterContext * avctx )

static

Definition at line 350 of file vf_overlay_vaapi.c.

overlay_vaapi_activate()

static int overlay_vaapi_activate ( AVFilterContext * avctx )

static

Definition at line 360 of file vf_overlay_vaapi.c.

overlay_vaapi_uninit()

static av_cold void overlay_vaapi_uninit ( AVFilterContext * avctx )

static

Definition at line 367 of file vf_overlay_vaapi.c.

FRAMESYNC_DEFINE_CLASS()

FRAMESYNC_DEFINE_CLASS	(	overlay_vaapi	,
		OverlayVAAPIContext	,
		fs	)

Variable Documentation

var_names

const char* const var_names[]

static

Initial value:

= {
    "main_w",     "W",   
    "main_h",     "H",   
    "overlay_iw",        
    "overlay_ih",        
    "overlay_x",  "x",   
    "overlay_y",  "y",   
    "overlay_w",  "w",   
    "overlay_h",  "h",   
    NULL
}

Definition at line 60 of file vf_overlay_vaapi.c.

overlay_vaapi_options

const AVOption overlay_vaapi_options[]

static

Initial value:

= {
    { "x", "Overlay x position", OFFSET(overlay_ox),   AV_OPT_TYPE_STRING, { .str="0"}, 0, 255,          .flags = FLAGS},
    { "y", "Overlay y position", OFFSET(overlay_oy),   AV_OPT_TYPE_STRING, { .str="0"}, 0, 255,          .flags = FLAGS},
    { "w", "Overlay width",      OFFSET(overlay_ow),   AV_OPT_TYPE_STRING, { .str="overlay_iw"}, 0, 255, .flags = FLAGS},
    { "h", "Overlay height",     OFFSET(overlay_oh),   AV_OPT_TYPE_STRING, { .str="overlay_ih*w/overlay_iw"}, 0, 255, .flags = FLAGS},
    { "alpha", "Overlay global alpha", OFFSET(alpha),  AV_OPT_TYPE_FLOAT,  { .dbl = 1.0 }, 0.0, 1.0,      .flags = 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, .unit = "eof_action" },
        { "repeat", "Repeat the previous frame.",   0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_REPEAT }, .flags = FLAGS, .unit = "eof_action" },
        { "endall", "End both streams.",            0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_ENDALL }, .flags = FLAGS, .unit = "eof_action" },
        { "pass",   "Pass through the main input.", 0, AV_OPT_TYPE_CONST, { .i64 = EOF_ACTION_PASS },   .flags = FLAGS, .unit = "eof_action" },
    { "shortest", "force termination when the shortest input terminates", OFFSET(fs.opt_shortest),   AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, FLAGS },
    { "repeatlast", "repeat overlay of the last overlay frame",           OFFSET(fs.opt_repeatlast), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
    { NULL },
}

Definition at line 377 of file vf_overlay_vaapi.c.

overlay_vaapi_inputs

const AVFilterPad overlay_vaapi_inputs[]

static

Initial value:

= {
    {
        .name             = "main",
        .type             = AVMEDIA_TYPE_VIDEO,
        .config_props     = overlay_vaapi_config_input_main,
    },
    {
        .name             = "overlay",
        .type             = AVMEDIA_TYPE_VIDEO,
        .config_props     = overlay_vaapi_config_input_overlay,
    },
}

Definition at line 396 of file vf_overlay_vaapi.c.

overlay_vaapi_outputs

const AVFilterPad overlay_vaapi_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = &overlay_vaapi_config_output,
    },
}

Definition at line 409 of file vf_overlay_vaapi.c.

ff_vf_overlay_vaapi

const FFFilter ff_vf_overlay_vaapi

Initial value:

= {
    .p.name          = "overlay_vaapi",
    .p.description   = NULL_IF_CONFIG_SMALL("Overlay one video on top of another"),
    .p.priv_class    = &overlay_vaapi_class,
    .priv_size       = sizeof(OverlayVAAPIContext),
    .init            = &overlay_vaapi_init,
    .uninit          = &overlay_vaapi_uninit,
    .activate        = &overlay_vaapi_activate,
    .preinit         = overlay_vaapi_framesync_preinit,
    FILTER_INPUTS(overlay_vaapi_inputs),
    FILTER_OUTPUTS(overlay_vaapi_outputs),
    FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VAAPI),
    .flags_internal  = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 417 of file vf_overlay_vaapi.c.