FFmpeg
Data Structures | Macros | Functions | Variables
vf_overlay_vulkan.c File Reference
#include "libavutil/random_seed.h"
#include "libavutil/opt.h"
#include "vulkan_filter.h"
#include "vulkan_spirv.h"
#include "internal.h"
#include "framesync.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  OverlayVulkanContext
 

Macros

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

Functions

static av_cold int init_filter (AVFilterContext *ctx)
 
static int overlay_vulkan_blend (FFFrameSync *fs)
 
static int overlay_vulkan_config_output (AVFilterLink *outlink)
 
static int overlay_vulkan_activate (AVFilterContext *avctx)
 
static av_cold int overlay_vulkan_init (AVFilterContext *avctx)
 
static void overlay_vulkan_uninit (AVFilterContext *avctx)
 
 AVFILTER_DEFINE_CLASS (overlay_vulkan)
 

Variables

static const char overlay_noalpha []
 
static const char overlay_alpha []
 
static const AVOption overlay_vulkan_options []
 
static const AVFilterPad overlay_vulkan_inputs []
 
static const AVFilterPad overlay_vulkan_outputs []
 
const AVFilter ff_vf_overlay_vulkan
 

Macro Definition Documentation

◆ OFFSET

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

Definition at line 303 of file vf_overlay_vulkan.c.

◆ FLAGS

Definition at line 304 of file vf_overlay_vulkan.c.

Function Documentation

◆ init_filter()

static av_cold int init_filter ( AVFilterContext ctx)
static

Definition at line 83 of file vf_overlay_vulkan.c.

Referenced by overlay_vulkan_blend().

◆ overlay_vulkan_blend()

static int overlay_vulkan_blend ( FFFrameSync fs)
static

Definition at line 197 of file vf_overlay_vulkan.c.

Referenced by overlay_vulkan_init().

◆ overlay_vulkan_config_output()

static int overlay_vulkan_config_output ( AVFilterLink outlink)
static

Definition at line 250 of file vf_overlay_vulkan.c.

◆ overlay_vulkan_activate()

static int overlay_vulkan_activate ( AVFilterContext avctx)
static

Definition at line 267 of file vf_overlay_vulkan.c.

◆ overlay_vulkan_init()

static av_cold int overlay_vulkan_init ( AVFilterContext avctx)
static

Definition at line 274 of file vf_overlay_vulkan.c.

◆ overlay_vulkan_uninit()

static void overlay_vulkan_uninit ( AVFilterContext avctx)
static

Definition at line 283 of file vf_overlay_vulkan.c.

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( overlay_vulkan  )

Variable Documentation

◆ overlay_noalpha

const char overlay_noalpha[]
static
Initial value:
= {
C(0, void overlay_noalpha(int i, ivec2 pos) )
C(0, { )
C(1, if ((o_offset[i].x <= pos.x) && (o_offset[i].y <= pos.y) &&
(pos.x < (o_offset[i].x + o_size[i].x)) &&
(pos.y < (o_offset[i].y + o_size[i].y))) { )
C(2, vec4 res = texture(overlay_img[i], pos - o_offset[i]); )
C(2, imageStore(output_img[i], pos, res); )
C(1, } else { )
C(2, vec4 res = texture(main_img[i], pos); )
C(2, imageStore(output_img[i], pos, res); )
C(1, } )
C(0, } )
}

Definition at line 52 of file vf_overlay_vulkan.c.

Referenced by init_filter().

◆ overlay_alpha

const char overlay_alpha[]
static
Initial value:
= {
C(0, void overlay_alpha_opaque(int i, ivec2 pos) )
C(0, { )
C(1, vec4 res = texture(main_img[i], pos); )
C(1, if ((o_offset[i].x <= pos.x) && (o_offset[i].y <= pos.y) &&
(pos.x < (o_offset[i].x + o_size[i].x)) &&
(pos.y < (o_offset[i].y + o_size[i].y))) { )
C(2, vec4 ovr = texture(overlay_img[i], pos - o_offset[i]); )
C(2, res = ovr * ovr.a + res * (1.0f - ovr.a); )
C(2, res.a = 1.0f; )
C(2, imageStore(output_img[i], pos, res); )
C(1, } )
C(1, imageStore(output_img[i], pos, res); )
C(0, } )
}

Definition at line 67 of file vf_overlay_vulkan.c.

Referenced by init_filter().

◆ overlay_vulkan_options

const AVOption overlay_vulkan_options[]
static
Initial value:
= {
{ "x", "Set horizontal offset", OFFSET(overlay_x), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, .flags = FLAGS },
{ "y", "Set vertical offset", OFFSET(overlay_y), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, .flags = FLAGS },
{ NULL },
}

Definition at line 305 of file vf_overlay_vulkan.c.

◆ overlay_vulkan_inputs

const AVFilterPad overlay_vulkan_inputs[]
static
Initial value:
= {
{
.name = "main",
.config_props = &ff_vk_filter_config_input,
},
{
.name = "overlay",
.config_props = &ff_vk_filter_config_input,
},
}

Definition at line 313 of file vf_overlay_vulkan.c.

◆ overlay_vulkan_outputs

const AVFilterPad overlay_vulkan_outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = &overlay_vulkan_config_output,
},
}

Definition at line 326 of file vf_overlay_vulkan.c.

◆ ff_vf_overlay_vulkan

const AVFilter ff_vf_overlay_vulkan
Initial value:
= {
.name = "overlay_vulkan",
.description = NULL_IF_CONFIG_SMALL("Overlay a source on top of another"),
.priv_size = sizeof(OverlayVulkanContext),
.priv_class = &overlay_vulkan_class,
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 334 of file vf_overlay_vulkan.c.

FF_FILTER_FLAG_HWFRAME_AWARE
#define FF_FILTER_FLAG_HWFRAME_AWARE
The filter is aware of hardware frames, and any hardware frame context should not be automatically pr...
Definition: internal.h:343
overlay_noalpha
static const char overlay_noalpha[]
Definition: vf_overlay_vulkan.c:52
overlay_vulkan_activate
static int overlay_vulkan_activate(AVFilterContext *avctx)
Definition: vf_overlay_vulkan.c:267
overlay_vulkan_config_output
static int overlay_vulkan_config_output(AVFilterLink *outlink)
Definition: vf_overlay_vulkan.c:250
overlay_vulkan_outputs
static const AVFilterPad overlay_vulkan_outputs[]
Definition: vf_overlay_vulkan.c:326
AV_PIX_FMT_VULKAN
@ AV_PIX_FMT_VULKAN
Vulkan hardware images.
Definition: pixfmt.h:383
C
s EdgeDetect Foobar g libavfilter vf_edgedetect c libavfilter vf_foobar c edit libavfilter and add an entry for foobar following the pattern of the other filters edit libavfilter allfilters and add an entry for foobar following the pattern of the other filters configure make j< whatever > ffmpeg ffmpeg i you should get a foobar png with Lena edge detected That s your new playground is ready Some little details about what s going which in turn will define variables for the build system and the C
Definition: writing_filters.txt:58
FLAGS
#define FLAGS
Definition: vf_overlay_vulkan.c:304
OFFSET
#define OFFSET(x)
Definition: vf_overlay_vulkan.c:303
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
NULL
#define NULL
Definition: coverity.c:32
overlay_vulkan_inputs
static const AVFilterPad overlay_vulkan_inputs[]
Definition: vf_overlay_vulkan.c:313
activate
filter_frame For filters that do not use the activate() callback
overlay_vulkan_init
static av_cold int overlay_vulkan_init(AVFilterContext *avctx)
Definition: vf_overlay_vulkan.c:274
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts.c:365
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:106
AVFILTER_FLAG_HWDEVICE
#define AVFILTER_FLAG_HWDEVICE
The filter can create hardware frames using AVFilterContext.hw_device_ctx.
Definition: avfilter.h:138
OverlayVulkanContext
Definition: vf_overlay_vulkan.c:29
FILTER_SINGLE_PIXFMT
#define FILTER_SINGLE_PIXFMT(pix_fmt_)
Definition: internal.h:172
uninit
static void uninit(AVBSFContext *ctx)
Definition: pcm_rechunk.c:68
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:255
pos
unsigned int pos
Definition: spdifenc.c:413
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
overlay_vulkan_uninit
static void overlay_vulkan_uninit(AVFilterContext *avctx)
Definition: vf_overlay_vulkan.c:283
ff_vk_filter_config_input
int ff_vk_filter_config_input(AVFilterLink *inlink)
Definition: vulkan_filter.c:166
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183