2 * This file is part of FFmpeg.
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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.
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16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #include "libavutil/opt.h"
25 typedef struct AvgBlurVulkanContext {
26 VulkanFilterContext vkctx;
29 FFVkExecContext *exec;
30 VulkanPipeline *pl_hor;
31 VulkanPipeline *pl_ver;
33 /* Shader updators, must be in the main filter struct */
34 VkDescriptorImageInfo input_images[3];
35 VkDescriptorImageInfo tmp_images[3];
36 VkDescriptorImageInfo output_images[3];
41 } AvgBlurVulkanContext;
43 static const char blur_kernel[] = {
44 C(0, shared vec4 cache[DIR(gl_WorkGroupSize) + FILTER_RADIUS*2 + 1]; )
46 C(0, void distort(const ivec2 pos, const int idx) )
48 C(1, const uint cp = DIR(gl_LocalInvocationID) + FILTER_RADIUS; )
50 C(1, cache[cp] = texture(input_img[idx], pos); )
52 C(1, const ivec2 loc_l = pos - INC(FILTER_RADIUS); )
53 C(1, cache[cp - FILTER_RADIUS] = texture(input_img[idx], loc_l); )
55 C(1, const ivec2 loc_h = pos + INC(DIR(gl_WorkGroupSize)); )
56 C(1, cache[cp + DIR(gl_WorkGroupSize)] = texture(input_img[idx], loc_h); )
60 C(1, vec4 sum = vec4(0); )
61 C(1, for (int p = -FILTER_RADIUS; p <= FILTER_RADIUS; p++) )
62 C(2, sum += cache[cp + p]; )
64 C(1, sum /= vec4(FILTER_RADIUS*2 + 1); )
65 C(1, imageStore(output_img[idx], pos, sum); )
69 static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in)
73 AvgBlurVulkanContext *s = ctx->priv;
74 const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
75 VkSampler *sampler = ff_vk_init_sampler(ctx, 1, VK_FILTER_LINEAR);
77 VulkanDescriptorSetBinding desc_i[2] = {
80 .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
83 .stages = VK_SHADER_STAGE_COMPUTE_BIT,
84 .samplers = DUP_SAMPLER_ARRAY4(*sampler),
88 .type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
89 .mem_layout = ff_vk_shader_rep_fmt(s->vkctx.output_format),
90 .mem_quali = "writeonly",
93 .stages = VK_SHADER_STAGE_COMPUTE_BIT,
98 return AVERROR_EXTERNAL;
100 { /* Create shader for the horizontal pass */
101 desc_i[0].updater = s->input_images;
102 desc_i[1].updater = s->tmp_images;
104 s->pl_hor = ff_vk_create_pipeline(ctx);
106 return AVERROR(ENOMEM);
108 shd = ff_vk_init_shader(ctx, s->pl_hor, "avgblur_compute_hor",
109 VK_SHADER_STAGE_COMPUTE_BIT);
111 ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ CGS, 1, 1 });
113 RET(ff_vk_add_descriptor_set(ctx, s->pl_hor, shd, desc_i, 2, 0));
115 GLSLF(0, #define FILTER_RADIUS (%i) ,s->size_x - 1);
116 GLSLC(0, #define INC(x) (ivec2(x, 0)) );
117 GLSLC(0, #define DIR(var) (var.x) );
118 GLSLD( blur_kernel );
119 GLSLC(0, void main() );
121 GLSLC(1, ivec2 size; );
122 GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
123 for (int i = 0; i < planes; i++) {
125 GLSLF(1, size = imageSize(output_img[%i]); ,i);
126 GLSLC(1, if (IS_WITHIN(pos, size)) { );
127 if (s->planes & (1 << i)) {
128 GLSLF(2, distort(pos, %i); ,i);
130 GLSLF(2, vec4 res = texture(input_img[%i], pos); ,i);
131 GLSLF(2, imageStore(output_img[%i], pos, res); ,i);
137 RET(ff_vk_compile_shader(ctx, shd, "main"));
139 RET(ff_vk_init_pipeline_layout(ctx, s->pl_hor));
140 RET(ff_vk_init_compute_pipeline(ctx, s->pl_hor));
143 { /* Create shader for the vertical pass */
144 desc_i[0].updater = s->tmp_images;
145 desc_i[1].updater = s->output_images;
147 s->pl_ver = ff_vk_create_pipeline(ctx);
149 return AVERROR(ENOMEM);
151 shd = ff_vk_init_shader(ctx, s->pl_ver, "avgblur_compute_ver",
152 VK_SHADER_STAGE_COMPUTE_BIT);
154 ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ 1, CGS, 1 });
156 RET(ff_vk_add_descriptor_set(ctx, s->pl_ver, shd, desc_i, 2, 0));
158 GLSLF(0, #define FILTER_RADIUS (%i) ,s->size_y - 1);
159 GLSLC(0, #define INC(x) (ivec2(0, x)) );
160 GLSLC(0, #define DIR(var) (var.y) );
161 GLSLD( blur_kernel );
162 GLSLC(0, void main() );
164 GLSLC(1, ivec2 size; );
165 GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
166 for (int i = 0; i < planes; i++) {
168 GLSLF(1, size = imageSize(output_img[%i]); ,i);
169 GLSLC(1, if (IS_WITHIN(pos, size)) { );
170 if (s->planes & (1 << i)) {
171 GLSLF(2, distort(pos, %i); ,i);
173 GLSLF(2, vec4 res = texture(input_img[%i], pos); ,i);
174 GLSLF(2, imageStore(output_img[%i], pos, res); ,i);
180 RET(ff_vk_compile_shader(ctx, shd, "main"));
182 RET(ff_vk_init_pipeline_layout(ctx, s->pl_ver));
183 RET(ff_vk_init_compute_pipeline(ctx, s->pl_ver));
186 /* Execution context */
187 RET(ff_vk_create_exec_ctx(ctx, &s->exec,
188 s->vkctx.hwctx->queue_family_comp_index));
198 static int process_frames(AVFilterContext *avctx, AVFrame *out_f, AVFrame *tmp_f, AVFrame *in_f)
201 AvgBlurVulkanContext *s = avctx->priv;
202 AVVkFrame *in = (AVVkFrame *)in_f->data[0];
203 AVVkFrame *tmp = (AVVkFrame *)tmp_f->data[0];
204 AVVkFrame *out = (AVVkFrame *)out_f->data[0];
205 int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
207 for (int i = 0; i < planes; i++) {
208 RET(ff_vk_create_imageview(avctx, &s->input_images[i].imageView, in->img[i],
209 av_vkfmt_from_pixfmt(s->vkctx.input_format)[i],
210 ff_comp_identity_map));
212 RET(ff_vk_create_imageview(avctx, &s->tmp_images[i].imageView, tmp->img[i],
213 av_vkfmt_from_pixfmt(s->vkctx.output_format)[i],
214 ff_comp_identity_map));
216 RET(ff_vk_create_imageview(avctx, &s->output_images[i].imageView, out->img[i],
217 av_vkfmt_from_pixfmt(s->vkctx.output_format)[i],
218 ff_comp_identity_map));
220 s->input_images[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
221 s->tmp_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
222 s->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
225 ff_vk_update_descriptor_set(avctx, s->pl_hor, 0);
226 ff_vk_update_descriptor_set(avctx, s->pl_ver, 0);
228 ff_vk_start_exec_recording(avctx, s->exec);
230 for (int i = 0; i < planes; i++) {
231 VkImageMemoryBarrier bar[] = {
233 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
235 .dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
236 .oldLayout = in->layout[i],
237 .newLayout = s->input_images[i].imageLayout,
238 .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
239 .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
241 .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
242 .subresourceRange.levelCount = 1,
243 .subresourceRange.layerCount = 1,
246 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
248 .dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT | VK_ACCESS_SHADER_READ_BIT,
249 .oldLayout = tmp->layout[i],
250 .newLayout = s->tmp_images[i].imageLayout,
251 .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
252 .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
253 .image = tmp->img[i],
254 .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
255 .subresourceRange.levelCount = 1,
256 .subresourceRange.layerCount = 1,
259 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
261 .dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
262 .oldLayout = out->layout[i],
263 .newLayout = s->output_images[i].imageLayout,
264 .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
265 .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
266 .image = out->img[i],
267 .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
268 .subresourceRange.levelCount = 1,
269 .subresourceRange.layerCount = 1,
273 vkCmdPipelineBarrier(s->exec->buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
274 VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0,
275 0, NULL, 0, NULL, FF_ARRAY_ELEMS(bar), bar);
277 in->layout[i] = bar[0].newLayout;
278 in->access[i] = bar[0].dstAccessMask;
280 tmp->layout[i] = bar[1].newLayout;
281 tmp->access[i] = bar[1].dstAccessMask;
283 out->layout[i] = bar[2].newLayout;
284 out->access[i] = bar[2].dstAccessMask;
287 ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_hor);
289 vkCmdDispatch(s->exec->buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
290 s->vkctx.output_height, 1);
292 ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl_ver);
294 vkCmdDispatch(s->exec->buf, s->vkctx.output_width,
295 FFALIGN(s->vkctx.output_height, CGS)/CGS, 1);
297 ff_vk_add_exec_dep(avctx, s->exec, in_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
298 ff_vk_add_exec_dep(avctx, s->exec, out_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
300 err = ff_vk_submit_exec_queue(avctx, s->exec);
306 for (int i = 0; i < planes; i++) {
307 ff_vk_destroy_imageview(avctx, &s->input_images[i].imageView);
308 ff_vk_destroy_imageview(avctx, &s->tmp_images[i].imageView);
309 ff_vk_destroy_imageview(avctx, &s->output_images[i].imageView);
315 static int avgblur_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
318 AVFrame *tmp = NULL, *out = NULL;
319 AVFilterContext *ctx = link->dst;
320 AvgBlurVulkanContext *s = ctx->priv;
321 AVFilterLink *outlink = ctx->outputs[0];
323 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
325 err = AVERROR(ENOMEM);
329 tmp = ff_get_video_buffer(outlink, outlink->w, outlink->h);
331 err = AVERROR(ENOMEM);
336 RET(init_filter(ctx, in));
338 RET(process_frames(ctx, out, tmp, in));
340 err = av_frame_copy_props(out, in);
347 return ff_filter_frame(outlink, out);
356 static void avgblur_vulkan_uninit(AVFilterContext *avctx)
358 AvgBlurVulkanContext *s = avctx->priv;
360 ff_vk_filter_uninit(avctx);
365 #define OFFSET(x) offsetof(AvgBlurVulkanContext, x)
366 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
367 static const AVOption avgblur_vulkan_options[] = {
368 { "sizeX", "Set horizontal radius", OFFSET(size_x), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 32, .flags = FLAGS },
369 { "planes", "Set planes to filter (bitmask)", OFFSET(planes), AV_OPT_TYPE_INT, {.i64 = 0xF}, 0, 0xF, .flags = FLAGS },
370 { "sizeY", "Set vertical radius", OFFSET(size_y), AV_OPT_TYPE_INT, {.i64 = 3}, 1, 32, .flags = FLAGS },
374 AVFILTER_DEFINE_CLASS(avgblur_vulkan);
376 static const AVFilterPad avgblur_vulkan_inputs[] = {
379 .type = AVMEDIA_TYPE_VIDEO,
380 .filter_frame = &avgblur_vulkan_filter_frame,
381 .config_props = &ff_vk_filter_config_input,
386 static const AVFilterPad avgblur_vulkan_outputs[] = {
389 .type = AVMEDIA_TYPE_VIDEO,
390 .config_props = &ff_vk_filter_config_output,
395 AVFilter ff_vf_avgblur_vulkan = {
396 .name = "avgblur_vulkan",
397 .description = NULL_IF_CONFIG_SMALL("Apply avgblur mask to input video"),
398 .priv_size = sizeof(AvgBlurVulkanContext),
399 .init = &ff_vk_filter_init,
400 .uninit = &avgblur_vulkan_uninit,
401 .query_formats = &ff_vk_filter_query_formats,
402 .inputs = avgblur_vulkan_inputs,
403 .outputs = avgblur_vulkan_outputs,
404 .priv_class = &avgblur_vulkan_class,
405 .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,