1 /* 2 * This file is part of FFmpeg. 3 * 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. 8 * 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. 13 * 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 17 */ 18 19 #include "libavutil/random_seed.h" 20 #include "libavutil/opt.h" 21 #include "vulkan.h" 22 #include "internal.h" 23 24 #define CGROUPS (int [3]){ 32, 32, 1 } 25 26 typedef struct ChromaticAberrationVulkanContext { 27 VulkanFilterContext vkctx; 28 29 int initialized; 30 FFVkExecContext *exec; 31 VulkanPipeline *pl; 32 33 /* Shader updators, must be in the main filter struct */ 34 VkDescriptorImageInfo input_images[3]; 35 VkDescriptorImageInfo output_images[3]; 36 37 /* Push constants / options */ 38 struct { 39 float dist[2]; 40 } opts; 41 } ChromaticAberrationVulkanContext; 42 43 static const char distort_chroma_kernel[] = { 44 C(0, void distort_rgb(ivec2 size, ivec2 pos) ) 45 C(0, { ) 46 C(1, const vec2 p = ((vec2(pos)/vec2(size)) - 0.5f)*2.0f; ) 47 C(1, const vec2 o = p * (dist - 1.0f); ) 48 C(0, ) 49 C(1, vec4 res; ) 50 C(1, res.r = texture(input_img[0], ((p - o)/2.0f) + 0.5f).r; ) 51 C(1, res.g = texture(input_img[0], ((p )/2.0f) + 0.5f).g; ) 52 C(1, res.b = texture(input_img[0], ((p + o)/2.0f) + 0.5f).b; ) 53 C(1, res.a = texture(input_img[0], ((p )/2.0f) + 0.5f).a; ) 54 C(1, imageStore(output_img[0], pos, res); ) 55 C(0, } ) 56 C(0, ) 57 C(0, void distort_chroma(int idx, ivec2 size, ivec2 pos) ) 58 C(0, { ) 59 C(1, vec2 p = ((vec2(pos)/vec2(size)) - 0.5f)*2.0f; ) 60 C(1, float d = sqrt(p.x*p.x + p.y*p.y); ) 61 C(1, p *= d / (d* dist); ) 62 C(1, vec4 res = texture(input_img[idx], (p/2.0f) + 0.5f); ) 63 C(1, imageStore(output_img[idx], pos, res); ) 64 C(0, } ) 65 }; 66 67 static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in) 68 { 69 int err; 70 ChromaticAberrationVulkanContext *s = ctx->priv; 71 72 /* Create a sampler */ 73 VkSampler *sampler = ff_vk_init_sampler(ctx, 0, VK_FILTER_LINEAR); 74 if (!sampler) 75 return AVERROR_EXTERNAL; 76 77 s->vkctx.queue_family_idx = s->vkctx.hwctx->queue_family_comp_index; 78 s->vkctx.queue_count = GET_QUEUE_COUNT(s->vkctx.hwctx, 0, 1, 0); 79 s->vkctx.cur_queue_idx = av_get_random_seed() % s->vkctx.queue_count; 80 81 s->pl = ff_vk_create_pipeline(ctx); 82 if (!s->pl) 83 return AVERROR(ENOMEM); 84 85 /* Normalize options */ 86 s->opts.dist[0] = (s->opts.dist[0] / 100.0f) + 1.0f; 87 s->opts.dist[1] = (s->opts.dist[1] / 100.0f) + 1.0f; 88 89 { /* Create the shader */ 90 const int planes = av_pix_fmt_count_planes(s->vkctx.output_format); 91 VulkanDescriptorSetBinding desc_i[2] = { 92 { 93 .name = "input_img", 94 .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 95 .dimensions = 2, 96 .elems = planes, 97 .stages = VK_SHADER_STAGE_COMPUTE_BIT, 98 .updater = s->input_images, 99 .samplers = DUP_SAMPLER_ARRAY4(*sampler), 100 }, 101 { 102 .name = "output_img", 103 .type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, 104 .mem_layout = ff_vk_shader_rep_fmt(s->vkctx.output_format), 105 .mem_quali = "writeonly", 106 .dimensions = 2, 107 .elems = planes, 108 .stages = VK_SHADER_STAGE_COMPUTE_BIT, 109 .updater = s->output_images, 110 }, 111 }; 112 113 SPIRVShader *shd = ff_vk_init_shader(ctx, s->pl, "chromaber_compute", 114 VK_SHADER_STAGE_COMPUTE_BIT); 115 if (!shd) 116 return AVERROR(ENOMEM); 117 118 ff_vk_set_compute_shader_sizes(ctx, shd, CGROUPS); 119 120 GLSLC(0, layout(push_constant, std430) uniform pushConstants { ); 121 GLSLC(1, vec2 dist; ); 122 GLSLC(0, }; ); 123 GLSLC(0, ); 124 125 ff_vk_add_push_constant(ctx, s->pl, 0, sizeof(s->opts), 126 VK_SHADER_STAGE_COMPUTE_BIT); 127 128 RET(ff_vk_add_descriptor_set(ctx, s->pl, shd, desc_i, 2, 0)); /* set 0 */ 129 130 GLSLD( distort_chroma_kernel ); 131 GLSLC(0, void main() ); 132 GLSLC(0, { ); 133 GLSLC(1, ivec2 pos = ivec2(gl_GlobalInvocationID.xy); ); 134 if (planes == 1) { 135 GLSLC(1, distort_rgb(imageSize(output_img[0]), pos); ); 136 } else { 137 GLSLC(1, ivec2 size = imageSize(output_img[0]); ); 138 GLSLC(1, vec2 npos = vec2(pos)/vec2(size); ); 139 GLSLC(1, vec4 res = texture(input_img[0], npos); ); 140 GLSLC(1, imageStore(output_img[0], pos, res); ); 141 for (int i = 1; i < planes; i++) { 142 GLSLC(0, ); 143 GLSLF(1, size = imageSize(output_img[%i]); ,i); 144 GLSLC(1, if (IS_WITHIN(pos, size)) { ); 145 GLSLF(2, distort_chroma(%i, size, pos); ,i); 146 GLSLC(1, } else { ); 147 GLSLC(2, npos = vec2(pos)/vec2(size); ); 148 GLSLF(2, res = texture(input_img[%i], npos); ,i); 149 GLSLF(2, imageStore(output_img[%i], pos, res); ,i); 150 GLSLC(1, } ); 151 } 152 } 153 GLSLC(0, } ); 154 155 RET(ff_vk_compile_shader(ctx, shd, "main")); 156 } 157 158 RET(ff_vk_init_pipeline_layout(ctx, s->pl)); 159 RET(ff_vk_init_compute_pipeline(ctx, s->pl)); 160 161 /* Execution context */ 162 RET(ff_vk_create_exec_ctx(ctx, &s->exec)); 163 164 s->initialized = 1; 165 166 return 0; 167 168 fail: 169 return err; 170 } 171 172 static int process_frames(AVFilterContext *avctx, AVFrame *out_f, AVFrame *in_f) 173 { 174 int err = 0; 175 VkCommandBuffer cmd_buf; 176 ChromaticAberrationVulkanContext *s = avctx->priv; 177 AVVkFrame *in = (AVVkFrame *)in_f->data[0]; 178 AVVkFrame *out = (AVVkFrame *)out_f->data[0]; 179 int planes = av_pix_fmt_count_planes(s->vkctx.output_format); 180 181 /* Update descriptors and init the exec context */ 182 ff_vk_start_exec_recording(avctx, s->exec); 183 cmd_buf = ff_vk_get_exec_buf(avctx, s->exec); 184 185 for (int i = 0; i < planes; i++) { 186 RET(ff_vk_create_imageview(avctx, s->exec, &s->input_images[i].imageView, 187 in->img[i], 188 av_vkfmt_from_pixfmt(s->vkctx.input_format)[i], 189 ff_comp_identity_map)); 190 191 RET(ff_vk_create_imageview(avctx, s->exec, &s->output_images[i].imageView, 192 out->img[i], 193 av_vkfmt_from_pixfmt(s->vkctx.output_format)[i], 194 ff_comp_identity_map)); 195 196 s->input_images[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; 197 s->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL; 198 } 199 200 ff_vk_update_descriptor_set(avctx, s->pl, 0); 201 202 for (int i = 0; i < planes; i++) { 203 VkImageMemoryBarrier bar[2] = { 204 { 205 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, 206 .srcAccessMask = 0, 207 .dstAccessMask = VK_ACCESS_SHADER_READ_BIT, 208 .oldLayout = in->layout[i], 209 .newLayout = s->input_images[i].imageLayout, 210 .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, 211 .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, 212 .image = in->img[i], 213 .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, 214 .subresourceRange.levelCount = 1, 215 .subresourceRange.layerCount = 1, 216 }, 217 { 218 .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, 219 .srcAccessMask = 0, 220 .dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT, 221 .oldLayout = out->layout[i], 222 .newLayout = s->output_images[i].imageLayout, 223 .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, 224 .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, 225 .image = out->img[i], 226 .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, 227 .subresourceRange.levelCount = 1, 228 .subresourceRange.layerCount = 1, 229 }, 230 }; 231 232 vkCmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, 233 VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0, 234 0, NULL, 0, NULL, FF_ARRAY_ELEMS(bar), bar); 235 236 in->layout[i] = bar[0].newLayout; 237 in->access[i] = bar[0].dstAccessMask; 238 239 out->layout[i] = bar[1].newLayout; 240 out->access[i] = bar[1].dstAccessMask; 241 } 242 243 ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl); 244 245 ff_vk_update_push_exec(avctx, s->exec, VK_SHADER_STAGE_COMPUTE_BIT, 246 0, sizeof(s->opts), &s->opts); 247 248 vkCmdDispatch(cmd_buf, 249 FFALIGN(s->vkctx.output_width, CGROUPS[0])/CGROUPS[0], 250 FFALIGN(s->vkctx.output_height, CGROUPS[1])/CGROUPS[1], 1); 251 252 ff_vk_add_exec_dep(avctx, s->exec, in_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT); 253 ff_vk_add_exec_dep(avctx, s->exec, out_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT); 254 255 err = ff_vk_submit_exec_queue(avctx, s->exec); 256 if (err) 257 return err; 258 259 return err; 260 261 fail: 262 ff_vk_discard_exec_deps(avctx, s->exec); 263 return err; 264 } 265 266 static int chromaber_vulkan_filter_frame(AVFilterLink *link, AVFrame *in) 267 { 268 int err; 269 AVFilterContext *ctx = link->dst; 270 ChromaticAberrationVulkanContext *s = ctx->priv; 271 AVFilterLink *outlink = ctx->outputs[0]; 272 273 AVFrame *out = ff_get_video_buffer(outlink, outlink->w, outlink->h); 274 if (!out) { 275 err = AVERROR(ENOMEM); 276 goto fail; 277 } 278 279 if (!s->initialized) 280 RET(init_filter(ctx, in)); 281 282 RET(process_frames(ctx, out, in)); 283 284 err = av_frame_copy_props(out, in); 285 if (err < 0) 286 goto fail; 287 288 av_frame_free(&in); 289 290 return ff_filter_frame(outlink, out); 291 292 fail: 293 av_frame_free(&in); 294 av_frame_free(&out); 295 return err; 296 } 297 298 static void chromaber_vulkan_uninit(AVFilterContext *avctx) 299 { 300 ChromaticAberrationVulkanContext *s = avctx->priv; 301 302 ff_vk_filter_uninit(avctx); 303 304 s->initialized = 0; 305 } 306 307 #define OFFSET(x) offsetof(ChromaticAberrationVulkanContext, x) 308 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) 309 static const AVOption chromaber_vulkan_options[] = { 310 { "dist_x", "Set horizontal distortion amount", OFFSET(opts.dist[0]), AV_OPT_TYPE_FLOAT, {.dbl = 0.0f}, -10.0f, 10.0f, .flags = FLAGS }, 311 { "dist_y", "Set vertical distortion amount", OFFSET(opts.dist[1]), AV_OPT_TYPE_FLOAT, {.dbl = 0.0f}, -10.0f, 10.0f, .flags = FLAGS }, 312 { NULL }, 313 }; 314 315 AVFILTER_DEFINE_CLASS(chromaber_vulkan); 316 317 static const AVFilterPad chromaber_vulkan_inputs[] = { 318 { 319 .name = "default", 320 .type = AVMEDIA_TYPE_VIDEO, 321 .filter_frame = &chromaber_vulkan_filter_frame, 322 .config_props = &ff_vk_filter_config_input, 323 }, 324 { NULL } 325 }; 326 327 static const AVFilterPad chromaber_vulkan_outputs[] = { 328 { 329 .name = "default", 330 .type = AVMEDIA_TYPE_VIDEO, 331 .config_props = &ff_vk_filter_config_output, 332 }, 333 { NULL } 334 }; 335 336 AVFilter ff_vf_chromaber_vulkan = { 337 .name = "chromaber_vulkan", 338 .description = NULL_IF_CONFIG_SMALL("Offset chroma of input video (chromatic aberration)"), 339 .priv_size = sizeof(ChromaticAberrationVulkanContext), 340 .init = &ff_vk_filter_init, 341 .uninit = &chromaber_vulkan_uninit, 342 .query_formats = &ff_vk_filter_query_formats, 343 .inputs = chromaber_vulkan_inputs, 344 .outputs = chromaber_vulkan_outputs, 345 .priv_class = &chromaber_vulkan_class, 346 .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, 347 }; 348