[FFmpeg-devel] [PATCH v3] libavfilter: add a gblur_vulkan filter
Wu Jianhua
jianhua.wu at intel.com
Thu Sep 9 08:44:59 EEST 2021
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=vul:0 -filter_hw_device vul -i input.264
-vf hwupload=extra_hw_frames=16,gblur_vulkan,hwdownload,format=yuv420p
output.264
Signed-off-by: Wu Jianhua <jianhua.wu at intel.com>
---
configure | 1 +
libavfilter/Makefile | 1 +
libavfilter/allfilters.c | 1 +
libavfilter/vf_gblur_vulkan.c | 511 ++++++++++++++++++++++++++++++++++
4 files changed, 514 insertions(+)
create mode 100644 libavfilter/vf_gblur_vulkan.c
diff --git a/configure b/configure
index af410a9d11..4b9a0d8e07 100755
--- a/configure
+++ b/configure
@@ -3601,6 +3601,7 @@ freezedetect_filter_select="scene_sad"
frei0r_filter_deps="frei0r libdl"
frei0r_src_filter_deps="frei0r libdl"
fspp_filter_deps="gpl"
+gblur_vulkan_filter_deps="vulkan_lib libglslang"
histeq_filter_deps="gpl"
hqdn3d_filter_deps="gpl"
interlace_filter_deps="gpl"
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index af957a5ac0..5f74e33599 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -286,6 +286,7 @@ OBJS-$(CONFIG_FREEZEFRAMES_FILTER) += vf_freezeframes.o
OBJS-$(CONFIG_FREI0R_FILTER) += vf_frei0r.o
OBJS-$(CONFIG_FSPP_FILTER) += vf_fspp.o qp_table.o
OBJS-$(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-$(CONFIG_GRADFUN_FILTER) += vf_gradfun.o
OBJS-$(CONFIG_GRAPHMONITOR_FILTER) += f_graphmonitor.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 0c6b2347c8..b5576de3af 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -271,6 +271,7 @@ extern const AVFilter ff_vf_freezeframes;
extern const AVFilter ff_vf_frei0r;
extern const AVFilter ff_vf_fspp;
extern const AVFilter ff_vf_gblur;
+extern const AVFilter ff_vf_gblur_vulkan;
extern const AVFilter ff_vf_geq;
extern const AVFilter ff_vf_gradfun;
extern const AVFilter ff_vf_graphmonitor;
diff --git a/libavfilter/vf_gblur_vulkan.c b/libavfilter/vf_gblur_vulkan.c
new file mode 100644
index 0000000000..5c072f8971
--- /dev/null
+++ b/libavfilter/vf_gblur_vulkan.c
@@ -0,0 +1,511 @@
+/*
+ * copyright (c) 2021 Wu Jianhua <jianhua.wu at 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 {
+ VulkanFilterContext vkctx;
+ FFVkExecContext *exec;
+ VulkanPipeline *pl_hor;
+ VulkanPipeline *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 even\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;
+ SPIRVShader *shd;
+ GBlurVulkanContext *s = ctx->priv;
+
+ int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
+ VkSampler *sampler = ff_vk_init_sampler(ctx, 1, VK_FILTER_LINEAR);
+
+ VulkanDescriptorSetBinding image_descs[] = {
+ {
+ .name = "input_image",
+ .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
+ .dimensions = 2,
+ .elems = planes,
+ .stages = VK_SHADER_STAGE_COMPUTE_BIT,
+ .samplers = DUP_SAMPLER_ARRAY4(*sampler),
+ },
+ {
+ .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,
+ },
+ };
+
+ VulkanDescriptorSetBinding 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,
+ };
+
+ if (!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;
+
+ s->vkctx.queue_family_idx = s->vkctx.hwctx->queue_family_comp_index;
+ s->vkctx.queue_count = GET_QUEUE_COUNT(s->vkctx.hwctx, 0, 1, 0);
+ s->vkctx.cur_queue_idx = av_get_random_seed() % s->vkctx.queue_count;
+
+ { /* 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);
+ 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);
+ 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);
+ 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);
+ 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->initialized = 1;
+
+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;
+ const VkFormat *input_formats = NULL;
+ const VkFormat *output_formats = NULL;
+ VkCommandBuffer cmd_buf;
+ GBlurVulkanContext *s = avctx->priv;
+
+ 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,
+ },
+ };
+
+ vkCmdPipelineBarrier(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);
+
+ vkCmdDispatch(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);
+
+ vkCmdDispatch(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, 1);
+ ff_vk_add_exec_dep(avctx, s->exec, outframe, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, 0);
+
+ return ff_vk_submit_exec_queue(avctx, s->exec);
+
+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,
+ .query_formats = &ff_vk_filter_query_formats,
+ .priv_class = &gblur_vulkan_class,
+ FILTER_INPUTS(gblur_vulkan_inputs),
+ FILTER_OUTPUTS(gblur_vulkan_outputs),
+ .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
+};
--
2.17.1
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