libavfilter/vf_avgblur_vulkan.c - manifest_repos/ffmpeg - Git at Google

 /*
  * 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

 typedef struct AvgBlurVulkanContext {
     VulkanFilterContext vkctx;

     int initialized;
     FFVkExecContext *exec;
     VulkanPipeline *pl_hor;
     VulkanPipeline *pl_ver;

     /* Shader updators, must be in the main filter struct */
     VkDescriptorImageInfo input_images[3];
     VkDescriptorImageInfo tmp_images[3];
     VkDescriptorImageInfo output_images[3];

     int size_x;
     int size_y;
     int planes;
 } AvgBlurVulkanContext;

 static const char blur_kernel[] = {
     C(0, shared vec4 cache[DIR(gl_WorkGroupSize) + FILTER_RADIUS*2 + 1];           )
     C(0,                                                                           )
     C(0, void distort(const ivec2 pos, const int idx)                              )
     C(0, {                                                                         )
     C(1,     const uint cp = DIR(gl_LocalInvocationID) + FILTER_RADIUS;            )
     C(0,                                                                           )
     C(1,     cache[cp] = texture(input_img[idx], pos);                             )
     C(0,                                                                           )
     C(1,     const ivec2 loc_l = pos - INC(FILTER_RADIUS);                         )
     C(1,     cache[cp - FILTER_RADIUS] = texture(input_img[idx], loc_l);           )
     C(0,                                                                           )
     C(1,     const ivec2 loc_h = pos + INC(DIR(gl_WorkGroupSize));                 )
     C(1,     cache[cp + DIR(gl_WorkGroupSize)] = texture(input_img[idx], loc_h);   )
     C(0,                                                                           )
     C(1,     barrier();                                                            )
     C(0,                                                                           )
     C(1,     vec4 sum = vec4(0);                                                   )
     C(1,     for (int p = -FILTER_RADIUS; p <= FILTER_RADIUS; p++)                 )
     C(2,         sum += cache[cp + p];                                             )
     C(0,                                                                           )
     C(1,     sum /= vec4(FILTER_RADIUS*2 + 1);                                     )
     C(1,     imageStore(output_img[idx], pos, sum);                                )
     C(0, }                                                                         )
 };

 static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in)
 {
     int err;
     SPIRVShader *shd;
     AvgBlurVulkanContext *s = ctx->priv;
     const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
     VkSampler *sampler = ff_vk_init_sampler(ctx, 1, VK_FILTER_LINEAR);

     VulkanDescriptorSetBinding desc_i[2] = {
         {
             .name       = "input_img",
             .type       = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
             .dimensions = 2,
             .elems      = planes,
             .stages     = VK_SHADER_STAGE_COMPUTE_BIT,
             .samplers   = DUP_SAMPLER_ARRAY4(*sampler),
         },
         {
             .name       = "output_img",
             .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,
         },
     };

     if (!sampler)
         return AVERROR_EXTERNAL;

     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 */
         desc_i[0].updater = s->input_images;
         desc_i[1].updater = s->tmp_images;

         s->pl_hor = ff_vk_create_pipeline(ctx);
         if (!s->pl_hor)
             return AVERROR(ENOMEM);

         shd = ff_vk_init_shader(ctx, s->pl_hor, "avgblur_compute_hor",
                                 VK_SHADER_STAGE_COMPUTE_BIT);

         ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ CGS, 1, 1 });

         RET(ff_vk_add_descriptor_set(ctx, s->pl_hor, shd, desc_i, 2, 0));

         GLSLF(0, #define FILTER_RADIUS (%i)                     ,s->size_x - 1);
         GLSLC(0, #define INC(x) (ivec2(x, 0))                                 );
         GLSLC(0, #define DIR(var) (var.x)                                     );
         GLSLD(   blur_kernel                                                  );
         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_img[%i]);                     ,i);
             GLSLC(1,  if (IS_WITHIN(pos, size)) {                             );
             if (s->planes & (1 << i)) {
                 GLSLF(2, distort(pos, %i);                                  ,i);
             } else {
                 GLSLF(2, vec4 res = texture(input_img[%i], pos);            ,i);
                 GLSLF(2, imageStore(output_img[%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));
     }

     { /* Create shader for the vertical pass */
         desc_i[0].updater = s->tmp_images;
         desc_i[1].updater = s->output_images;

         s->pl_ver = ff_vk_create_pipeline(ctx);
         if (!s->pl_ver)
             return AVERROR(ENOMEM);

         shd = ff_vk_init_shader(ctx, s->pl_ver, "avgblur_compute_ver",
                                 VK_SHADER_STAGE_COMPUTE_BIT);

         ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ 1, CGS, 1 });

         RET(ff_vk_add_descriptor_set(ctx, s->pl_ver, shd, desc_i, 2, 0));

         GLSLF(0, #define FILTER_RADIUS (%i)                     ,s->size_y - 1);
         GLSLC(0, #define INC(x) (ivec2(0, x))                                 );
         GLSLC(0, #define DIR(var) (var.y)                                     );
         GLSLD(   blur_kernel                                                  );
         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_img[%i]);                     ,i);
             GLSLC(1,  if (IS_WITHIN(pos, size)) {                             );
             if (s->planes & (1 << i)) {
                 GLSLF(2, distort(pos, %i);                                  ,i);
             } else {
                 GLSLF(2, vec4 res = texture(input_img[%i], pos);            ,i);
                 GLSLF(2, imageStore(output_img[%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));
     }

     /* Execution context */
     RET(ff_vk_create_exec_ctx(ctx, &s->exec));

     s->initialized = 1;

     return 0;

 fail:
     return err;
 }

 static int process_frames(AVFilterContext *avctx, AVFrame *out_f, AVFrame *tmp_f, AVFrame *in_f)
 {
     int err;
     VkCommandBuffer cmd_buf;
     AvgBlurVulkanContext *s = avctx->priv;
     AVVkFrame *in = (AVVkFrame *)in_f->data[0];
     AVVkFrame *tmp = (AVVkFrame *)tmp_f->data[0];
     AVVkFrame *out = (AVVkFrame *)out_f->data[0];
     int planes = av_pix_fmt_count_planes(s->vkctx.output_format);

     /* Update descriptors and init the exec context */
     ff_vk_start_exec_recording(avctx, s->exec);
     cmd_buf = ff_vk_get_exec_buf(avctx, s->exec);

     for (int i = 0; i < planes; i++) {
         RET(ff_vk_create_imageview(avctx, s->exec, &s->input_images[i].imageView,
                                    in->img[i],
                                    av_vkfmt_from_pixfmt(s->vkctx.input_format)[i],
                                    ff_comp_identity_map));

         RET(ff_vk_create_imageview(avctx, s->exec, &s->tmp_images[i].imageView,
                                    tmp->img[i],
                                    av_vkfmt_from_pixfmt(s->vkctx.output_format)[i],
                                    ff_comp_identity_map));

         RET(ff_vk_create_imageview(avctx, s->exec, &s->output_images[i].imageView,
                                    out->img[i],
                                    av_vkfmt_from_pixfmt(s->vkctx.output_format)[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 bar[] = {
             {
                 .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(bar), bar);

         in->layout[i]  = bar[0].newLayout;
         in->access[i]  = bar[0].dstAccessMask;

         tmp->layout[i] = bar[1].newLayout;
         tmp->access[i] = bar[1].dstAccessMask;

         out->layout[i] = bar[2].newLayout;
         out->access[i] = bar[2].dstAccessMask;
     }

     ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_hor);

     vkCmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
                   s->vkctx.output_height, 1);

     ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_ver);

     vkCmdDispatch(cmd_buf, s->vkctx.output_width,
                   FFALIGN(s->vkctx.output_height, CGS)/CGS, 1);

     ff_vk_add_exec_dep(avctx, s->exec, in_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
     ff_vk_add_exec_dep(avctx, s->exec, out_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);

     err = ff_vk_submit_exec_queue(avctx, s->exec);
     if (err)
         return err;

     return err;

 fail:
     ff_vk_discard_exec_deps(avctx, s->exec);
     return err;
 }

 static int avgblur_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
 {
     int err;
     AVFrame *tmp = NULL, *out = NULL;
     AVFilterContext *ctx = link->dst;
     AvgBlurVulkanContext *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;
     }

     tmp = ff_get_video_buffer(outlink, outlink->w, outlink->h);
     if (!out) {
         err = AVERROR(ENOMEM);
         goto fail;
     }

     if (!s->initialized)
         RET(init_filter(ctx, in));

     RET(process_frames(ctx, out, tmp, in));

     err = av_frame_copy_props(out, in);
     if (err < 0)
         goto fail;

     av_frame_free(&in);
     av_frame_free(&tmp);

     return ff_filter_frame(outlink, out);

 fail:
     av_frame_free(&in);
     av_frame_free(&tmp);
     av_frame_free(&out);
     return err;
 }

 static void avgblur_vulkan_uninit(AVFilterContext *avctx)
 {
     AvgBlurVulkanContext *s = avctx->priv;

     ff_vk_filter_uninit(avctx);

     s->initialized = 0;
 }

 #define OFFSET(x) offsetof(AvgBlurVulkanContext, x)
 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
 static const AVOption avgblur_vulkan_options[] = {
     { "sizeX",  "Set horizontal radius", OFFSET(size_x), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 32, .flags = FLAGS },
     { "planes", "Set planes to filter (bitmask)", OFFSET(planes), AV_OPT_TYPE_INT, {.i64 = 0xF}, 0, 0xF, .flags = FLAGS },
     { "sizeY",  "Set vertical radius", OFFSET(size_y), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 32, .flags = FLAGS },
     { NULL },
 };

 AVFILTER_DEFINE_CLASS(avgblur_vulkan);

 static const AVFilterPad avgblur_vulkan_inputs[] = {
     {
         .name         = "default",
         .type         = AVMEDIA_TYPE_VIDEO,
         .filter_frame = &avgblur_vulkan_filter_frame,
         .config_props = &ff_vk_filter_config_input,
     },
     { NULL }
 };

 static const AVFilterPad avgblur_vulkan_outputs[] = {
     {
         .name = "default",
         .type = AVMEDIA_TYPE_VIDEO,
         .config_props = &ff_vk_filter_config_output,
     },
     { NULL }
 };

 AVFilter ff_vf_avgblur_vulkan = {
     .name           = "avgblur_vulkan",
     .description    = NULL_IF_CONFIG_SMALL("Apply avgblur mask to input video"),
     .priv_size      = sizeof(AvgBlurVulkanContext),
     .init           = &ff_vk_filter_init,
     .uninit         = &avgblur_vulkan_uninit,
     .query_formats  = &ff_vk_filter_query_formats,
     .inputs         = avgblur_vulkan_inputs,
     .outputs        = avgblur_vulkan_outputs,
     .priv_class     = &avgblur_vulkan_class,
     .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
 };
	/*
	* 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

	typedef struct AvgBlurVulkanContext {
	VulkanFilterContext vkctx;

	int initialized;
	FFVkExecContext *exec;
	VulkanPipeline *pl_hor;
	VulkanPipeline *pl_ver;

	/* Shader updators, must be in the main filter struct */
	VkDescriptorImageInfo input_images[3];
	VkDescriptorImageInfo tmp_images[3];
	VkDescriptorImageInfo output_images[3];

	int size_x;
	int size_y;
	int planes;
	} AvgBlurVulkanContext;

	static const char blur_kernel[] = {
	C(0, shared vec4 cache[DIR(gl_WorkGroupSize) + FILTER_RADIUS*2 + 1]; )
	C(0, )
	C(0, void distort(const ivec2 pos, const int idx) )
	C(0, { )
	C(1, const uint cp = DIR(gl_LocalInvocationID) + FILTER_RADIUS; )
	C(0, )
	C(1, cache[cp] = texture(input_img[idx], pos); )
	C(0, )
	C(1, const ivec2 loc_l = pos - INC(FILTER_RADIUS); )
	C(1, cache[cp - FILTER_RADIUS] = texture(input_img[idx], loc_l); )
	C(0, )
	C(1, const ivec2 loc_h = pos + INC(DIR(gl_WorkGroupSize)); )
	C(1, cache[cp + DIR(gl_WorkGroupSize)] = texture(input_img[idx], loc_h); )
	C(0, )
	C(1, barrier(); )
	C(0, )
	C(1, vec4 sum = vec4(0); )
	C(1, for (int p = -FILTER_RADIUS; p <= FILTER_RADIUS; p++) )
	C(2, sum += cache[cp + p]; )
	C(0, )
	C(1, sum /= vec4(FILTER_RADIUS*2 + 1); )
	C(1, imageStore(output_img[idx], pos, sum); )
	C(0, } )
	};

	static av_cold int init_filter(AVFilterContext ctx, AVFrame in)
	{
	int err;
	SPIRVShader *shd;
	AvgBlurVulkanContext *s = ctx->priv;
	const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
	VkSampler *sampler = ff_vk_init_sampler(ctx, 1, VK_FILTER_LINEAR);

	VulkanDescriptorSetBinding desc_i[2] = {
	{
	.name = "input_img",
	.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
	.dimensions = 2,
	.elems = planes,
	.stages = VK_SHADER_STAGE_COMPUTE_BIT,
	.samplers = DUP_SAMPLER_ARRAY4(*sampler),
	},
	{
	.name = "output_img",
	.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,
	},
	};

	if (!sampler)
	return AVERROR_EXTERNAL;

	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 */
	desc_i[0].updater = s->input_images;
	desc_i[1].updater = s->tmp_images;

	s->pl_hor = ff_vk_create_pipeline(ctx);
	if (!s->pl_hor)
	return AVERROR(ENOMEM);

	shd = ff_vk_init_shader(ctx, s->pl_hor, "avgblur_compute_hor",
	VK_SHADER_STAGE_COMPUTE_BIT);

	ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ CGS, 1, 1 });

	RET(ff_vk_add_descriptor_set(ctx, s->pl_hor, shd, desc_i, 2, 0));

	GLSLF(0, #define FILTER_RADIUS (%i) ,s->size_x - 1);
	GLSLC(0, #define INC(x) (ivec2(x, 0)) );
	GLSLC(0, #define DIR(var) (var.x) );
	GLSLD( blur_kernel );
	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_img[%i]); ,i);
	GLSLC(1, if (IS_WITHIN(pos, size)) { );
	if (s->planes & (1 << i)) {
	GLSLF(2, distort(pos, %i); ,i);
	} else {
	GLSLF(2, vec4 res = texture(input_img[%i], pos); ,i);
	GLSLF(2, imageStore(output_img[%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));
	}

	{ /* Create shader for the vertical pass */
	desc_i[0].updater = s->tmp_images;
	desc_i[1].updater = s->output_images;

	s->pl_ver = ff_vk_create_pipeline(ctx);
	if (!s->pl_ver)
	return AVERROR(ENOMEM);

	shd = ff_vk_init_shader(ctx, s->pl_ver, "avgblur_compute_ver",
	VK_SHADER_STAGE_COMPUTE_BIT);

	ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ 1, CGS, 1 });

	RET(ff_vk_add_descriptor_set(ctx, s->pl_ver, shd, desc_i, 2, 0));

	GLSLF(0, #define FILTER_RADIUS (%i) ,s->size_y - 1);
	GLSLC(0, #define INC(x) (ivec2(0, x)) );
	GLSLC(0, #define DIR(var) (var.y) );
	GLSLD( blur_kernel );
	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_img[%i]); ,i);
	GLSLC(1, if (IS_WITHIN(pos, size)) { );
	if (s->planes & (1 << i)) {
	GLSLF(2, distort(pos, %i); ,i);
	} else {
	GLSLF(2, vec4 res = texture(input_img[%i], pos); ,i);
	GLSLF(2, imageStore(output_img[%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));
	}

	/* Execution context */
	RET(ff_vk_create_exec_ctx(ctx, &s->exec));

	s->initialized = 1;

	return 0;

	fail:
	return err;
	}

	static int process_frames(AVFilterContext avctx, AVFrame out_f, AVFrame tmp_f, AVFrame in_f)
	{
	int err;
	VkCommandBuffer cmd_buf;
	AvgBlurVulkanContext *s = avctx->priv;
	AVVkFrame in = (AVVkFrame )in_f->data[0];
	AVVkFrame tmp = (AVVkFrame )tmp_f->data[0];
	AVVkFrame out = (AVVkFrame )out_f->data[0];
	int planes = av_pix_fmt_count_planes(s->vkctx.output_format);

	/* Update descriptors and init the exec context */
	ff_vk_start_exec_recording(avctx, s->exec);
	cmd_buf = ff_vk_get_exec_buf(avctx, s->exec);

	for (int i = 0; i < planes; i++) {
	RET(ff_vk_create_imageview(avctx, s->exec, &s->input_images[i].imageView,
	in->img[i],
	av_vkfmt_from_pixfmt(s->vkctx.input_format)[i],
	ff_comp_identity_map));

	RET(ff_vk_create_imageview(avctx, s->exec, &s->tmp_images[i].imageView,
	tmp->img[i],
	av_vkfmt_from_pixfmt(s->vkctx.output_format)[i],
	ff_comp_identity_map));

	RET(ff_vk_create_imageview(avctx, s->exec, &s->output_images[i].imageView,
	out->img[i],
	av_vkfmt_from_pixfmt(s->vkctx.output_format)[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 bar[] = {
	{
	.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(bar), bar);

	in->layout[i] = bar[0].newLayout;
	in->access[i] = bar[0].dstAccessMask;

	tmp->layout[i] = bar[1].newLayout;
	tmp->access[i] = bar[1].dstAccessMask;

	out->layout[i] = bar[2].newLayout;
	out->access[i] = bar[2].dstAccessMask;
	}

	ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_hor);

	vkCmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
	s->vkctx.output_height, 1);

	ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_ver);

	vkCmdDispatch(cmd_buf, s->vkctx.output_width,
	FFALIGN(s->vkctx.output_height, CGS)/CGS, 1);

	ff_vk_add_exec_dep(avctx, s->exec, in_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
	ff_vk_add_exec_dep(avctx, s->exec, out_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);

	err = ff_vk_submit_exec_queue(avctx, s->exec);
	if (err)
	return err;

	return err;

	fail:
	ff_vk_discard_exec_deps(avctx, s->exec);
	return err;
	}

	static int avgblur_vulkan_filter_frame(AVFilterLink link, AVFrame in)
	{
	int err;
	AVFrame tmp = NULL, out = NULL;
	AVFilterContext *ctx = link->dst;
	AvgBlurVulkanContext *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;
	}

	tmp = ff_get_video_buffer(outlink, outlink->w, outlink->h);
	if (!out) {
	err = AVERROR(ENOMEM);
	goto fail;
	}

	if (!s->initialized)
	RET(init_filter(ctx, in));

	RET(process_frames(ctx, out, tmp, in));

	err = av_frame_copy_props(out, in);
	if (err < 0)
	goto fail;

	av_frame_free(&in);
	av_frame_free(&tmp);

	return ff_filter_frame(outlink, out);

	fail:
	av_frame_free(&in);
	av_frame_free(&tmp);
	av_frame_free(&out);
	return err;
	}

	static void avgblur_vulkan_uninit(AVFilterContext *avctx)
	{
	AvgBlurVulkanContext *s = avctx->priv;

	ff_vk_filter_uninit(avctx);

	s->initialized = 0;
	}

	#define OFFSET(x) offsetof(AvgBlurVulkanContext, x)
	#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM \| AV_OPT_FLAG_VIDEO_PARAM)
	static const AVOption avgblur_vulkan_options[] = {
	{ "sizeX", "Set horizontal radius", OFFSET(size_x), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 32, .flags = FLAGS },
	{ "planes", "Set planes to filter (bitmask)", OFFSET(planes), AV_OPT_TYPE_INT, {.i64 = 0xF}, 0, 0xF, .flags = FLAGS },
	{ "sizeY", "Set vertical radius", OFFSET(size_y), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 32, .flags = FLAGS },
	{ NULL },
	};

	AVFILTER_DEFINE_CLASS(avgblur_vulkan);

	static const AVFilterPad avgblur_vulkan_inputs[] = {
	{
	.name = "default",
	.type = AVMEDIA_TYPE_VIDEO,
	.filter_frame = &avgblur_vulkan_filter_frame,
	.config_props = &ff_vk_filter_config_input,
	},
	{ NULL }
	};

	static const AVFilterPad avgblur_vulkan_outputs[] = {
	{
	.name = "default",
	.type = AVMEDIA_TYPE_VIDEO,
	.config_props = &ff_vk_filter_config_output,
	},
	{ NULL }
	};

	AVFilter ff_vf_avgblur_vulkan = {
	.name = "avgblur_vulkan",
	.description = NULL_IF_CONFIG_SMALL("Apply avgblur mask to input video"),
	.priv_size = sizeof(AvgBlurVulkanContext),
	.init = &ff_vk_filter_init,
	.uninit = &avgblur_vulkan_uninit,
	.query_formats = &ff_vk_filter_query_formats,
	.inputs = avgblur_vulkan_inputs,
	.outputs = avgblur_vulkan_outputs,
	.priv_class = &avgblur_vulkan_class,
	.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
	};