FFmpeg  4.3.8
Data Structures | Macros | Functions | Variables
vf_overlay_vulkan.c File Reference
#include "libavutil/random_seed.h"
#include "libavutil/opt.h"
#include "vulkan.h"
#include "internal.h"
#include "framesync.h"

Go to the source code of this file.

Data Structures

struct  OverlayVulkanContext
 

Macros

#define CGROUPS   (int [3]){ 32, 32, 1 }
 
#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 process_frames (AVFilterContext *avctx, AVFrame *out_f, AVFrame *main_f, AVFrame *overlay_f)
 
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 []
 
AVFilter ff_vf_overlay_vulkan
 

Macro Definition Documentation

◆ CGROUPS

#define CGROUPS   (int [3]){ 32, 32, 1 }

Definition at line 25 of file vf_overlay_vulkan.c.

Referenced by init_filter(), and process_frames().

◆ OFFSET

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

Definition at line 445 of file vf_overlay_vulkan.c.

◆ FLAGS

Definition at line 446 of file vf_overlay_vulkan.c.

Function Documentation

◆ init_filter()

static av_cold int init_filter ( AVFilterContext ctx)
static

Definition at line 79 of file vf_overlay_vulkan.c.

Referenced by overlay_vulkan_blend().

◆ process_frames()

static int process_frames ( AVFilterContext avctx,
AVFrame out_f,
AVFrame main_f,
AVFrame overlay_f 
)
static

Definition at line 229 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 349 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 400 of file vf_overlay_vulkan.c.

◆ overlay_vulkan_activate()

static int overlay_vulkan_activate ( AVFilterContext avctx)
static

Definition at line 417 of file vf_overlay_vulkan.c.

◆ overlay_vulkan_init()

static av_cold int overlay_vulkan_init ( AVFilterContext avctx)
static

Definition at line 424 of file vf_overlay_vulkan.c.

◆ overlay_vulkan_uninit()

static void overlay_vulkan_uninit ( AVFilterContext avctx)
static

Definition at line 433 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, } )
}
#define C
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
unsigned int pos
Definition: spdifenc.c:412
static const char overlay_noalpha[]

Definition at line 48 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, } )
}
#define C
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
unsigned int pos
Definition: spdifenc.c:412

Definition at line 63 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 },
}
#define NULL
Definition: coverity.c:32
#define FLAGS
#define OFFSET(x)

Definition at line 447 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,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
int ff_vk_filter_config_input(AVFilterLink *inlink)
Definition: vulkan.c:635

Definition at line 455 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,
},
{ NULL }
}
static int overlay_vulkan_config_output(AVFilterLink *outlink)
#define NULL
Definition: coverity.c:32

Definition at line 469 of file vf_overlay_vulkan.c.

◆ ff_vf_overlay_vulkan

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,
}
#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:365
static const AVFilterPad overlay_vulkan_outputs[]
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static av_cold int uninit(AVCodecContext *avctx)
Definition: crystalhd.c:279
int ff_vk_filter_query_formats(AVFilterContext *avctx)
General lavfi IO functions.
Definition: vulkan.c:592
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:188
static av_cold int overlay_vulkan_init(AVFilterContext *avctx)
static const AVFilterPad overlay_vulkan_inputs[]
static int activate(AVFilterContext *ctx)
Definition: af_adeclick.c:622
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
static void overlay_vulkan_uninit(AVFilterContext *avctx)
static int query_formats(AVFilterContext *ctx)
Definition: aeval.c:244
static int overlay_vulkan_activate(AVFilterContext *avctx)

Definition at line 478 of file vf_overlay_vulkan.c.