2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #include "libavutil/random_seed.h"
20 #include "libavutil/opt.h"
26 typedef struct AvgBlurVulkanContext {
27 VulkanFilterContext vkctx;
30 FFVkExecContext *exec;
31 VulkanPipeline *pl_hor;
32 VulkanPipeline *pl_ver;
34 /* Shader updators, must be in the main filter struct */
35 VkDescriptorImageInfo input_images[3];
36 VkDescriptorImageInfo tmp_images[3];
37 VkDescriptorImageInfo output_images[3];
42 } AvgBlurVulkanContext;
44 static const char blur_kernel[] = {
45 C(0, shared vec4 cache[DIR(gl_WorkGroupSize) + FILTER_RADIUS*2 + 1]; )
47 C(0, void distort(const ivec2 pos, const int idx) )
49 C(1, const uint cp = DIR(gl_LocalInvocationID) + FILTER_RADIUS; )
51 C(1, cache[cp] = texture(input_img[idx], pos); )
53 C(1, const ivec2 loc_l = pos - INC(FILTER_RADIUS); )
54 C(1, cache[cp - FILTER_RADIUS] = texture(input_img[idx], loc_l); )
56 C(1, const ivec2 loc_h = pos + INC(DIR(gl_WorkGroupSize)); )
57 C(1, cache[cp + DIR(gl_WorkGroupSize)] = texture(input_img[idx], loc_h); )
61 C(1, vec4 sum = vec4(0); )
62 C(1, for (int p = -FILTER_RADIUS; p <= FILTER_RADIUS; p++) )
63 C(2, sum += cache[cp + p]; )
65 C(1, sum /= vec4(FILTER_RADIUS*2 + 1); )
66 C(1, imageStore(output_img[idx], pos, sum); )
70 static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in)
74 AvgBlurVulkanContext *s = ctx->priv;
75 const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
76 VkSampler *sampler = ff_vk_init_sampler(ctx, 1, VK_FILTER_LINEAR);
78 VulkanDescriptorSetBinding desc_i[2] = {
81 .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
84 .stages = VK_SHADER_STAGE_COMPUTE_BIT,
85 .samplers = DUP_SAMPLER_ARRAY4(*sampler),
89 .type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
90 .mem_layout = ff_vk_shader_rep_fmt(s->vkctx.output_format),
91 .mem_quali = "writeonly",
94 .stages = VK_SHADER_STAGE_COMPUTE_BIT,
99 return AVERROR_EXTERNAL;
101 s->vkctx.queue_family_idx = s->vkctx.hwctx->queue_family_comp_index;
102 s->vkctx.queue_count = GET_QUEUE_COUNT(s->vkctx.hwctx, 0, 1, 0);
103 s->vkctx.cur_queue_idx = av_get_random_seed() % s->vkctx.queue_count;
105 { /* Create shader for the horizontal pass */
106 desc_i[0].updater = s->input_images;
107 desc_i[1].updater = s->tmp_images;
109 s->pl_hor = ff_vk_create_pipeline(ctx);
111 return AVERROR(ENOMEM);
113 shd = ff_vk_init_shader(ctx, s->pl_hor, "avgblur_compute_hor",
114 VK_SHADER_STAGE_COMPUTE_BIT);
116 ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ CGS, 1, 1 });
118 RET(ff_vk_add_descriptor_set(ctx, s->pl_hor, shd, desc_i, 2, 0));
120 GLSLF(0, #define FILTER_RADIUS (%i) ,s->size_x - 1);
121 GLSLC(0, #define INC(x) (ivec2(x, 0)) );
122 GLSLC(0, #define DIR(var) (var.x) );
123 GLSLD( blur_kernel );
124 GLSLC(0, void main() );
126 GLSLC(1, ivec2 size; );
127 GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
128 for (int i = 0; i < planes; i++) {
130 GLSLF(1, size = imageSize(output_img[%i]); ,i);
131 GLSLC(1, if (IS_WITHIN(pos, size)) { );
132 if (s->planes & (1 << i)) {
133 GLSLF(2, distort(pos, %i); ,i);
135 GLSLF(2, vec4 res = texture(input_img[%i], pos); ,i);
136 GLSLF(2, imageStore(output_img[%i], pos, res); ,i);
142 RET(ff_vk_compile_shader(ctx, shd, "main"));
144 RET(ff_vk_init_pipeline_layout(ctx, s->pl_hor));
145 RET(ff_vk_init_compute_pipeline(ctx, s->pl_hor));
148 { /* Create shader for the vertical pass */
149 desc_i[0].updater = s->tmp_images;
150 desc_i[1].updater = s->output_images;
152 s->pl_ver = ff_vk_create_pipeline(ctx);
154 return AVERROR(ENOMEM);
156 shd = ff_vk_init_shader(ctx, s->pl_ver, "avgblur_compute_ver",
157 VK_SHADER_STAGE_COMPUTE_BIT);
159 ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ 1, CGS, 1 });
161 RET(ff_vk_add_descriptor_set(ctx, s->pl_ver, shd, desc_i, 2, 0));
163 GLSLF(0, #define FILTER_RADIUS (%i) ,s->size_y - 1);
164 GLSLC(0, #define INC(x) (ivec2(0, x)) );
165 GLSLC(0, #define DIR(var) (var.y) );
166 GLSLD( blur_kernel );
167 GLSLC(0, void main() );
169 GLSLC(1, ivec2 size; );
170 GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
171 for (int i = 0; i < planes; i++) {
173 GLSLF(1, size = imageSize(output_img[%i]); ,i);
174 GLSLC(1, if (IS_WITHIN(pos, size)) { );
175 if (s->planes & (1 << i)) {
176 GLSLF(2, distort(pos, %i); ,i);
178 GLSLF(2, vec4 res = texture(input_img[%i], pos); ,i);
179 GLSLF(2, imageStore(output_img[%i], pos, res); ,i);
185 RET(ff_vk_compile_shader(ctx, shd, "main"));
187 RET(ff_vk_init_pipeline_layout(ctx, s->pl_ver));
188 RET(ff_vk_init_compute_pipeline(ctx, s->pl_ver));
191 /* Execution context */
192 RET(ff_vk_create_exec_ctx(ctx, &s->exec));
202 static int process_frames(AVFilterContext *avctx, AVFrame *out_f, AVFrame *tmp_f, AVFrame *in_f)
205 VkCommandBuffer cmd_buf;
206 AvgBlurVulkanContext *s = avctx->priv;
207 AVVkFrame *in = (AVVkFrame *)in_f->data[0];
208 AVVkFrame *tmp = (AVVkFrame *)tmp_f->data[0];
209 AVVkFrame *out = (AVVkFrame *)out_f->data[0];
210 int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
212 /* Update descriptors and init the exec context */
213 ff_vk_start_exec_recording(avctx, s->exec);
214 cmd_buf = ff_vk_get_exec_buf(avctx, s->exec);
216 for (int i = 0; i < planes; i++) {
217 RET(ff_vk_create_imageview(avctx, s->exec, &s->input_images[i].imageView,
219 av_vkfmt_from_pixfmt(s->vkctx.input_format)[i],
220 ff_comp_identity_map));
222 RET(ff_vk_create_imageview(avctx, s->exec, &s->tmp_images[i].imageView,
224 av_vkfmt_from_pixfmt(s->vkctx.output_format)[i],
225 ff_comp_identity_map));
227 RET(ff_vk_create_imageview(avctx, s->exec, &s->output_images[i].imageView,
229 av_vkfmt_from_pixfmt(s->vkctx.output_format)[i],
230 ff_comp_identity_map));
232 s->input_images[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
233 s->tmp_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
234 s->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
237 ff_vk_update_descriptor_set(avctx, s->pl_hor, 0);
238 ff_vk_update_descriptor_set(avctx, s->pl_ver, 0);
240 for (int i = 0; i < planes; i++) {
241 VkImageMemoryBarrier bar[] = {
243 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
245 .dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
246 .oldLayout = in->layout[i],
247 .newLayout = s->input_images[i].imageLayout,
248 .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
249 .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
251 .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
252 .subresourceRange.levelCount = 1,
253 .subresourceRange.layerCount = 1,
256 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
258 .dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT | VK_ACCESS_SHADER_READ_BIT,
259 .oldLayout = tmp->layout[i],
260 .newLayout = s->tmp_images[i].imageLayout,
261 .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
262 .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
263 .image = tmp->img[i],
264 .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
265 .subresourceRange.levelCount = 1,
266 .subresourceRange.layerCount = 1,
269 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
271 .dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
272 .oldLayout = out->layout[i],
273 .newLayout = s->output_images[i].imageLayout,
274 .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
275 .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
276 .image = out->img[i],
277 .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
278 .subresourceRange.levelCount = 1,
279 .subresourceRange.layerCount = 1,
283 vkCmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
284 VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0,
285 0, NULL, 0, NULL, FF_ARRAY_ELEMS(bar), bar);
287 in->layout[i] = bar[0].newLayout;
288 in->access[i] = bar[0].dstAccessMask;
290 tmp->layout[i] = bar[1].newLayout;
291 tmp->access[i] = bar[1].dstAccessMask;
293 out->layout[i] = bar[2].newLayout;
294 out->access[i] = bar[2].dstAccessMask;
297 ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_hor);
299 vkCmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
300 s->vkctx.output_height, 1);
302 ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_ver);
304 vkCmdDispatch(cmd_buf, s->vkctx.output_width,
305 FFALIGN(s->vkctx.output_height, CGS)/CGS, 1);
307 ff_vk_add_exec_dep(avctx, s->exec, in_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
308 ff_vk_add_exec_dep(avctx, s->exec, out_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
310 err = ff_vk_submit_exec_queue(avctx, s->exec);
317 ff_vk_discard_exec_deps(avctx, s->exec);
321 static int avgblur_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
324 AVFrame *tmp = NULL, *out = NULL;
325 AVFilterContext *ctx = link->dst;
326 AvgBlurVulkanContext *s = ctx->priv;
327 AVFilterLink *outlink = ctx->outputs[0];
329 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
331 err = AVERROR(ENOMEM);
335 tmp = ff_get_video_buffer(outlink, outlink->w, outlink->h);
337 err = AVERROR(ENOMEM);
342 RET(init_filter(ctx, in));
344 RET(process_frames(ctx, out, tmp, in));
346 err = av_frame_copy_props(out, in);
353 return ff_filter_frame(outlink, out);
362 static void avgblur_vulkan_uninit(AVFilterContext *avctx)
364 AvgBlurVulkanContext *s = avctx->priv;
366 ff_vk_filter_uninit(avctx);
371 #define OFFSET(x) offsetof(AvgBlurVulkanContext, x)
372 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
373 static const AVOption avgblur_vulkan_options[] = {
374 { "sizeX", "Set horizontal radius", OFFSET(size_x), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 32, .flags = FLAGS },
375 { "planes", "Set planes to filter (bitmask)", OFFSET(planes), AV_OPT_TYPE_INT, {.i64 = 0xF}, 0, 0xF, .flags = FLAGS },
376 { "sizeY", "Set vertical radius", OFFSET(size_y), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 32, .flags = FLAGS },
380 AVFILTER_DEFINE_CLASS(avgblur_vulkan);
382 static const AVFilterPad avgblur_vulkan_inputs[] = {
385 .type = AVMEDIA_TYPE_VIDEO,
386 .filter_frame = &avgblur_vulkan_filter_frame,
387 .config_props = &ff_vk_filter_config_input,
392 static const AVFilterPad avgblur_vulkan_outputs[] = {
395 .type = AVMEDIA_TYPE_VIDEO,
396 .config_props = &ff_vk_filter_config_output,
401 AVFilter ff_vf_avgblur_vulkan = {
402 .name = "avgblur_vulkan",
403 .description = NULL_IF_CONFIG_SMALL("Apply avgblur mask to input video"),
404 .priv_size = sizeof(AvgBlurVulkanContext),
405 .init = &ff_vk_filter_init,
406 .uninit = &avgblur_vulkan_uninit,
407 .query_formats = &ff_vk_filter_query_formats,
408 .inputs = avgblur_vulkan_inputs,
409 .outputs = avgblur_vulkan_outputs,
410 .priv_class = &avgblur_vulkan_class,
411 .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,