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libavfilter: add a gblur_vulkan filter

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This commit adds a powerful and customizable gblur Vulkan filter,
which provides a maximum 127x127 kernel size of Gaussian Filter.
The size could be adjusted by requirements on quality or performance.

The following command is on how to apply gblur_vulkan filter:

ffmpeg -init_hw_device vulkan -i input.264 -vf hwupload=extra_hw_frames=16,gblur_vulkan,hwdownload,format=yuv420p output.264

Signed-off-by: Wu Jianhua <jianhua.wu@intel.com>
pull/374/head
Wu Jianhua 3 years ago committed by Lynne
parent 3f4ce004b8
commit 5fc935c7fa
4 changed files with 527 additions and 0 deletions
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  1. 1
      configure
  2. 1
      libavfilter/Makefile
  3. 1
      libavfilter/allfilters.c
  4. 524
      libavfilter/vf_gblur_vulkan.c

1
configure vendored
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@ -3613,6 +3613,7 @@ frei0r_deps_any="libdl LoadLibrary"
frei0r_filter_deps="frei0r" frei0r_filter_deps="frei0r"
frei0r_src_filter_deps="frei0r" frei0r_src_filter_deps="frei0r"
fspp_filter_deps="gpl" fspp_filter_deps="gpl"
gblur_vulkan_filter_deps="vulkan libglslang"
histeq_filter_deps="gpl" histeq_filter_deps="gpl"
hqdn3d_filter_deps="gpl" hqdn3d_filter_deps="gpl"
interlace_filter_deps="gpl" interlace_filter_deps="gpl"

1
libavfilter/Makefile
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@ -289,6 +289,7 @@ OBJS-$(CONFIG_FREEZEFRAMES_FILTER) += vf_freezeframes.o
OBJS-$(CONFIG_FREI0R_FILTER) += vf_frei0r.o OBJS-$(CONFIG_FREI0R_FILTER) += vf_frei0r.o
OBJS-$(CONFIG_FSPP_FILTER) += vf_fspp.o qp_table.o OBJS-$(CONFIG_FSPP_FILTER) += vf_fspp.o qp_table.o
OBJS-$(CONFIG_GBLUR_FILTER) += vf_gblur.o OBJS-$(CONFIG_GBLUR_FILTER) += vf_gblur.o
OBJS-$(CONFIG_GBLUR_VULKAN_FILTER) += vf_gblur_vulkan.o vulkan.o
OBJS-$(CONFIG_GEQ_FILTER) += vf_geq.o OBJS-$(CONFIG_GEQ_FILTER) += vf_geq.o
OBJS-$(CONFIG_GRADFUN_FILTER) += vf_gradfun.o OBJS-$(CONFIG_GRADFUN_FILTER) += vf_gradfun.o
OBJS-$(CONFIG_GRAPHMONITOR_FILTER) += f_graphmonitor.o OBJS-$(CONFIG_GRAPHMONITOR_FILTER) += f_graphmonitor.o

1
libavfilter/allfilters.c
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@ -274,6 +274,7 @@ extern const AVFilter ff_vf_freezeframes;
extern const AVFilter ff_vf_frei0r; extern const AVFilter ff_vf_frei0r;
extern const AVFilter ff_vf_fspp; extern const AVFilter ff_vf_fspp;
extern const AVFilter ff_vf_gblur; extern const AVFilter ff_vf_gblur;
extern const AVFilter ff_vf_gblur_vulkan;
extern const AVFilter ff_vf_geq; extern const AVFilter ff_vf_geq;
extern const AVFilter ff_vf_gradfun; extern const AVFilter ff_vf_gradfun;
extern const AVFilter ff_vf_graphmonitor; extern const AVFilter ff_vf_graphmonitor;

524
libavfilter/vf_gblur_vulkan.c
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@ -0,0 +1,524 @@
/*
* copyright (c) 2021 Wu Jianhua <jianhua.wu@intel.com>
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/random_seed.h"
#include "libavutil/opt.h"
#include "vulkan.h"
#include "internal.h"
#define CGS 32
#define GBLUR_MAX_KERNEL_SIZE 127
typedef struct GBlurVulkanContext {
FFVulkanContext vkctx;
FFVkQueueFamilyCtx qf;
FFVkExecContext *exec;
FFVulkanPipeline *pl_hor;
FFVulkanPipeline *pl_ver;
FFVkBuffer params_buf_hor;
FFVkBuffer params_buf_ver;
VkDescriptorImageInfo input_images[3];
VkDescriptorImageInfo tmp_images[3];
VkDescriptorImageInfo output_images[3];
VkDescriptorBufferInfo params_desc_hor;
VkDescriptorBufferInfo params_desc_ver;
int initialized;
int size;
int planes;
int kernel_size;
float sigma;
float sigmaV;
AVFrame *tmpframe;
} GBlurVulkanContext;
static const char gblur_horizontal[] = {
C(0, void gblur(const ivec2 pos, const int index) )
C(0, { )
C(1, vec4 sum = texture(input_image[index], pos) * kernel[0]; )
C(0, )
C(1, for(int i = 1; i < kernel.length(); i++) { )
C(2, sum += texture(input_image[index], pos + vec2(i, 0.0)) * kernel[i]; )
C(2, sum += texture(input_image[index], pos - vec2(i, 0.0)) * kernel[i]; )
C(1, } )
C(0, )
C(1, imageStore(output_image[index], pos, sum); )
C(0, } )
};
static const char gblur_vertical[] = {
C(0, void gblur(const ivec2 pos, const int index) )
C(0, { )
C(1, vec4 sum = texture(input_image[index], pos) * kernel[0]; )
C(0, )
C(1, for(int i = 1; i < kernel.length(); i++) { )
C(2, sum += texture(input_image[index], pos + vec2(0.0, i)) * kernel[i]; )
C(2, sum += texture(input_image[index], pos - vec2(0.0, i)) * kernel[i]; )
C(1, } )
C(0, )
C(1, imageStore(output_image[index], pos, sum); )
C(0, } )
};
static inline float gaussian(float sigma, float x)
{
return 1.0 / (sqrt(2.0 * M_PI) * sigma) *
exp(-(x * x) / (2.0 * sigma * sigma));
}
static inline float gaussian_simpson_integration(float sigma, float a, float b)
{
return (b - a) * (1.0 / 6.0) * ((gaussian(sigma, a) +
4.0 * gaussian(sigma, (a + b) * 0.5) + gaussian(sigma, b)));
}
static void init_gaussian_kernel(float *kernel, float sigma, float kernel_size)
{
int x;
float sum;
sum = 0;
for (x = 0; x < kernel_size; x++) {
kernel[x] = gaussian_simpson_integration(sigma, x - 0.5f, x + 0.5f);
if (!x)
sum += kernel[x];
else
sum += kernel[x] * 2.0;
}
/* Normalized */
sum = 1.0 / sum;
for (x = 0; x < kernel_size; x++) {
kernel[x] *= sum;
}
}
static av_cold void init_gaussian_params(GBlurVulkanContext *s)
{
if (!(s->size & 1)) {
av_log(s, AV_LOG_WARNING, "kernel size should be odd\n");
s->size++;
}
if (s->sigmaV <= 0)
s->sigmaV = s->sigma;
s->kernel_size = (s->size >> 1) + 1;
s->tmpframe = NULL;
}
static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in)
{
int err;
char *kernel_def;
uint8_t *kernel_mapped;
FFSPIRVShader *shd;
GBlurVulkanContext *s = ctx->priv;
const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
FFVulkanDescriptorSetBinding image_descs[] = {
{
.name = "input_image",
.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
.dimensions = 2,
.elems = planes,
.stages = VK_SHADER_STAGE_COMPUTE_BIT,
},
{
.name = "output_image",
.type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
.mem_layout = ff_vk_shader_rep_fmt(s->vkctx.output_format),
.mem_quali = "writeonly",
.dimensions = 2,
.elems = planes,
.stages = VK_SHADER_STAGE_COMPUTE_BIT,
},
};
FFVulkanDescriptorSetBinding buf_desc = {
.name = "data",
.type = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
.mem_quali = "readonly",
.mem_layout = "std430",
.stages = VK_SHADER_STAGE_COMPUTE_BIT,
.updater = NULL,
.buf_content = NULL,
};
image_descs[0].sampler = ff_vk_init_sampler(ctx, 1, VK_FILTER_LINEAR);
if (!image_descs[0].sampler)
return AVERROR_EXTERNAL;
init_gaussian_params(s);
kernel_def = av_asprintf("float kernel[%i];", s->kernel_size);
if (!kernel_def)
return AVERROR(ENOMEM);
buf_desc.buf_content = kernel_def;
ff_vk_qf_init(ctx, &s->qf, VK_QUEUE_COMPUTE_BIT, 0);
{ /* Create shader for the horizontal pass */
image_descs[0].updater = s->input_images;
image_descs[1].updater = s->tmp_images;
buf_desc.updater = &s->params_desc_hor;
s->pl_hor = ff_vk_create_pipeline(ctx, &s->qf);
if (!s->pl_hor) {
err = AVERROR(ENOMEM);
goto fail;
}
shd = ff_vk_init_shader(ctx, s->pl_hor, "gblur_compute_hor", image_descs[0].stages);
if (!shd) {
err = AVERROR(ENOMEM);
goto fail;
}
ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ CGS, CGS, 1 });
RET(ff_vk_add_descriptor_set(ctx, s->pl_hor, shd, image_descs, FF_ARRAY_ELEMS(image_descs), 0));
RET(ff_vk_add_descriptor_set(ctx, s->pl_hor, shd, &buf_desc, 1, 0));
GLSLD( gblur_horizontal );
GLSLC(0, void main() );
GLSLC(0, { );
GLSLC(1, ivec2 size; );
GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
for (int i = 0; i < planes; i++) {
GLSLC(0, );
GLSLF(1, size = imageSize(output_image[%i]); ,i);
GLSLC(1, if (IS_WITHIN(pos, size)) { );
if (s->planes & (1 << i)) {
GLSLF(2, gblur(pos, %i); ,i);
} else {
GLSLF(2, vec4 res = texture(input_image[%i], pos); ,i);
GLSLF(2, imageStore(output_image[%i], pos, res); ,i);
}
GLSLC(1, } );
}
GLSLC(0, } );
RET(ff_vk_compile_shader(ctx, shd, "main"));
RET(ff_vk_init_pipeline_layout(ctx, s->pl_hor));
RET(ff_vk_init_compute_pipeline(ctx, s->pl_hor));
RET(ff_vk_create_buf(ctx, &s->params_buf_hor, sizeof(float) * s->kernel_size,
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT));
RET(ff_vk_map_buffers(ctx, &s->params_buf_hor, &kernel_mapped, 1, 0));
init_gaussian_kernel((float *)kernel_mapped, s->sigma, s->kernel_size);
RET(ff_vk_unmap_buffers(ctx, &s->params_buf_hor, 1, 1));
s->params_desc_hor.buffer = s->params_buf_hor.buf;
s->params_desc_hor.range = VK_WHOLE_SIZE;
ff_vk_update_descriptor_set(ctx, s->pl_hor, 1);
}
{ /* Create shader for the vertical pass */
image_descs[0].updater = s->tmp_images;
image_descs[1].updater = s->output_images;
buf_desc.updater = &s->params_desc_ver;
s->pl_ver = ff_vk_create_pipeline(ctx, &s->qf);
if (!s->pl_ver) {
err = AVERROR(ENOMEM);
goto fail;
}
shd = ff_vk_init_shader(ctx, s->pl_ver, "gblur_compute_ver", image_descs[0].stages);
if (!shd) {
err = AVERROR(ENOMEM);
goto fail;
}
ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ CGS, CGS, 1 });
RET(ff_vk_add_descriptor_set(ctx, s->pl_ver, shd, image_descs, FF_ARRAY_ELEMS(image_descs), 0));
RET(ff_vk_add_descriptor_set(ctx, s->pl_ver, shd, &buf_desc, 1, 0));
GLSLD( gblur_vertical );
GLSLC(0, void main() );
GLSLC(0, { );
GLSLC(1, ivec2 size; );
GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
for (int i = 0; i < planes; i++) {
GLSLC(0, );
GLSLF(1, size = imageSize(output_image[%i]); ,i);
GLSLC(1, if (IS_WITHIN(pos, size)) { );
if (s->planes & (1 << i)) {
GLSLF(2, gblur(pos, %i); ,i);
} else {
GLSLF(2, vec4 res = texture(input_image[%i], pos); ,i);
GLSLF(2, imageStore(output_image[%i], pos, res); ,i);
}
GLSLC(1, } );
}
GLSLC(0, } );
RET(ff_vk_compile_shader(ctx, shd, "main"));
RET(ff_vk_init_pipeline_layout(ctx, s->pl_ver));
RET(ff_vk_init_compute_pipeline(ctx, s->pl_ver));
RET(ff_vk_create_buf(ctx, &s->params_buf_ver, sizeof(float) * s->kernel_size,
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT));
RET(ff_vk_map_buffers(ctx, &s->params_buf_ver, &kernel_mapped, 1, 0));
init_gaussian_kernel((float *)kernel_mapped, s->sigmaV, s->kernel_size);
RET(ff_vk_unmap_buffers(ctx, &s->params_buf_ver, 1, 1));
s->params_desc_ver.buffer = s->params_buf_ver.buf;
s->params_desc_ver.range = VK_WHOLE_SIZE;
ff_vk_update_descriptor_set(ctx, s->pl_ver, 1);
}
RET(ff_vk_create_exec_ctx(ctx, &s->exec, &s->qf));
s->initialized = 1;
return 0;
fail:
av_free(kernel_def);
return err;
}
static av_cold void gblur_vulkan_uninit(AVFilterContext *avctx)
{
GBlurVulkanContext *s = avctx->priv;
av_frame_free(&s->tmpframe);
ff_vk_filter_uninit(avctx);
ff_vk_free_buf(avctx, &s->params_buf_hor);
ff_vk_free_buf(avctx, &s->params_buf_ver);
s->initialized = 0;
}
static int process_frames(AVFilterContext *avctx, AVFrame *outframe, AVFrame *inframe)
{
int err;
VkCommandBuffer cmd_buf;
const VkFormat *input_formats = NULL;
const VkFormat *output_formats = NULL;
GBlurVulkanContext *s = avctx->priv;
FFVulkanFunctions *vk = &s->vkctx.vkfn;
AVVkFrame *in = (AVVkFrame *)inframe->data[0];
AVVkFrame *tmp = (AVVkFrame *)s->tmpframe->data[0];
AVVkFrame *out = (AVVkFrame *)outframe->data[0];
int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
ff_vk_start_exec_recording(avctx, s->exec);
cmd_buf = ff_vk_get_exec_buf(avctx, s->exec);
input_formats = av_vkfmt_from_pixfmt(s->vkctx.input_format);
output_formats = av_vkfmt_from_pixfmt(s->vkctx.output_format);
for (int i = 0; i < planes; i++) {
RET(ff_vk_create_imageview(avctx, s->exec, &s->input_images[i].imageView,
in->img[i],
input_formats[i],
ff_comp_identity_map));
RET(ff_vk_create_imageview(avctx, s->exec, &s->tmp_images[i].imageView,
tmp->img[i],
output_formats[i],
ff_comp_identity_map));
RET(ff_vk_create_imageview(avctx, s->exec, &s->output_images[i].imageView,
out->img[i],
output_formats[i],
ff_comp_identity_map));
s->input_images[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
s->tmp_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
s->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
}
ff_vk_update_descriptor_set(avctx, s->pl_hor, 0);
ff_vk_update_descriptor_set(avctx, s->pl_ver, 0);
for (int i = 0; i < planes; i++) {
VkImageMemoryBarrier barriers[] = {
{
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.srcAccessMask = 0,
.dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
.oldLayout = in->layout[i],
.newLayout = s->input_images[i].imageLayout,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.image = in->img[i],
.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.subresourceRange.levelCount = 1,
.subresourceRange.layerCount = 1,
},
{
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.srcAccessMask = 0,
.dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT | VK_ACCESS_SHADER_READ_BIT,
.oldLayout = tmp->layout[i],
.newLayout = s->tmp_images[i].imageLayout,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.image = tmp->img[i],
.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.subresourceRange.levelCount = 1,
.subresourceRange.layerCount = 1,
},
{
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
.srcAccessMask = 0,
.dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
.oldLayout = out->layout[i],
.newLayout = s->output_images[i].imageLayout,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.image = out->img[i],
.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.subresourceRange.levelCount = 1,
.subresourceRange.layerCount = 1,
},
};
vk->CmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0,
0, NULL, 0, NULL, FF_ARRAY_ELEMS(barriers), barriers);
in->layout[i] = barriers[0].newLayout;
in->access[i] = barriers[0].dstAccessMask;
tmp->layout[i] = barriers[1].newLayout;
tmp->access[i] = barriers[1].dstAccessMask;
out->layout[i] = barriers[2].newLayout;
out->access[i] = barriers[2].dstAccessMask;
}
ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_hor);
vk->CmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
FFALIGN(s->vkctx.output_height, CGS)/CGS, 1);
ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_ver);
vk->CmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
FFALIGN(s->vkctx.output_height, CGS)/CGS, 1);
ff_vk_add_exec_dep(avctx, s->exec, inframe, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
ff_vk_add_exec_dep(avctx, s->exec, outframe, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
err = ff_vk_submit_exec_queue(avctx, s->exec);
if (err)
return err;
ff_vk_qf_rotate(&s->qf);
return 0;
fail:
ff_vk_discard_exec_deps(avctx, s->exec);
return err;
}
static int gblur_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
{
int err;
AVFrame *out = NULL;
AVFilterContext *ctx = link->dst;
GBlurVulkanContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
err = AVERROR(ENOMEM);
goto fail;
}
if (!s->initialized) {
RET(init_filter(ctx, in));
s->tmpframe = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!s->tmpframe) {
err = AVERROR(ENOMEM);
goto fail;
}
}
RET(process_frames(ctx, out, in));
RET(av_frame_copy_props(out, in));
av_frame_free(&in);
return ff_filter_frame(outlink, out);
fail:
av_frame_free(&in);
av_frame_free(&out);
av_frame_free(&s->tmpframe);
return err;
}
#define OFFSET(x) offsetof(GBlurVulkanContext, x)
#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
static const AVOption gblur_vulkan_options[] = {
{ "sigma", "Set sigma", OFFSET(sigma), AV_OPT_TYPE_FLOAT, {.dbl = 0.5}, 0.01, 1024.0, FLAGS },
{ "sigmaV", "Set vertical sigma", OFFSET(sigmaV), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0.0, 1024.0, FLAGS },
{ "planes", "Set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64 = 0xF}, 0, 0xF, FLAGS },
{ "size", "Set kernel size", OFFSET(size), AV_OPT_TYPE_INT, {.i64 = 19}, 1, GBLUR_MAX_KERNEL_SIZE, FLAGS },
{ NULL },
};
AVFILTER_DEFINE_CLASS(gblur_vulkan);
static const AVFilterPad gblur_vulkan_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = &gblur_vulkan_filter_frame,
.config_props = &ff_vk_filter_config_input,
}
};
static const AVFilterPad gblur_vulkan_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = &ff_vk_filter_config_output,
}
};
const AVFilter ff_vf_gblur_vulkan = {
.name = "gblur_vulkan",
.description = NULL_IF_CONFIG_SMALL("Gaussian Blur in Vulkan"),
.priv_size = sizeof(GBlurVulkanContext),
.init = &ff_vk_filter_init,
.uninit = &gblur_vulkan_uninit,
FILTER_INPUTS(gblur_vulkan_inputs),
FILTER_OUTPUTS(gblur_vulkan_outputs),
FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
.priv_class = &gblur_vulkan_class,
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
};
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