FFmpeg
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

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

Definition at line 25 of file vf_overlay_vulkan.c.

Referenced by init_filter(), and process_frames().

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

Definition at line 445 of file vf_overlay_vulkan.c.

Definition at line 446 of file vf_overlay_vulkan.c.

Function Documentation

static av_cold int init_filter ( AVFilterContext ctx)
static

Definition at line 79 of file vf_overlay_vulkan.c.

Referenced by overlay_vulkan_blend().

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().

static int overlay_vulkan_blend ( FFFrameSync fs)
static

Definition at line 349 of file vf_overlay_vulkan.c.

Referenced by overlay_vulkan_init().

static int overlay_vulkan_config_output ( AVFilterLink outlink)
static

Definition at line 400 of file vf_overlay_vulkan.c.

static int overlay_vulkan_activate ( AVFilterContext avctx)
static

Definition at line 417 of file vf_overlay_vulkan.c.

static av_cold int overlay_vulkan_init ( AVFilterContext avctx)
static

Definition at line 424 of file vf_overlay_vulkan.c.

static void overlay_vulkan_uninit ( AVFilterContext avctx)
static

Definition at line 433 of file vf_overlay_vulkan.c.

AVFILTER_DEFINE_CLASS ( overlay_vulkan  )

Variable Documentation

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, } )
}
unsigned int pos
Definition: spdifenc.c:410
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
static const char overlay_noalpha[]
int i
Definition: input.c:407

Definition at line 48 of file vf_overlay_vulkan.c.

Referenced by init_filter().

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, } )
}
unsigned int pos
Definition: spdifenc.c:410
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
int i
Definition: input.c:407

Definition at line 63 of file vf_overlay_vulkan.c.

Referenced by init_filter().

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.

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.

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.

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:339
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
filter_frame For filters that do not use the activate() callback
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:153
static av_cold int overlay_vulkan_init(AVFilterContext *avctx)
static const AVFilterPad overlay_vulkan_inputs[]
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
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.