/* * 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_filter.h" #include "internal.h" #define CGROUPS (int [3]){ 32, 32, 1 } typedef struct ChromaticAberrationVulkanContext { FFVulkanContext vkctx; int initialized; FFVkQueueFamilyCtx qf; FFVkExecContext *exec; FFVulkanPipeline *pl; /* Shader updators, must be in the main filter struct */ VkDescriptorImageInfo input_images[3]; VkDescriptorImageInfo output_images[3]; /* Push constants / options */ struct { float dist[2]; } opts; } ChromaticAberrationVulkanContext; static const char distort_chroma_kernel[] = { C(0, void distort_rgb(ivec2 size, ivec2 pos) ) C(0, { ) C(1, const vec2 p = ((vec2(pos)/vec2(size)) - 0.5f)*2.0f; ) C(1, const vec2 o = p * (dist - 1.0f); ) C(0, ) C(1, vec4 res; ) C(1, res.r = texture(input_img[0], ((p - o)/2.0f) + 0.5f).r; ) C(1, res.g = texture(input_img[0], ((p )/2.0f) + 0.5f).g; ) C(1, res.b = texture(input_img[0], ((p + o)/2.0f) + 0.5f).b; ) C(1, res.a = texture(input_img[0], ((p )/2.0f) + 0.5f).a; ) C(1, imageStore(output_img[0], pos, res); ) C(0, } ) C(0, ) C(0, void distort_chroma(int idx, ivec2 size, ivec2 pos) ) C(0, { ) C(1, vec2 p = ((vec2(pos)/vec2(size)) - 0.5f)*2.0f; ) C(1, float d = sqrt(p.x*p.x + p.y*p.y); ) C(1, p *= d / (d* dist); ) C(1, vec4 res = texture(input_img[idx], (p/2.0f) + 0.5f); ) C(1, imageStore(output_img[idx], pos, res); ) C(0, } ) }; static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in) { int err; FFVkSampler *sampler; ChromaticAberrationVulkanContext *s = ctx->priv; FFVulkanContext *vkctx = &s->vkctx; const int planes = av_pix_fmt_count_planes(s->vkctx.output_format); ff_vk_qf_init(vkctx, &s->qf, VK_QUEUE_COMPUTE_BIT, 0); /* Create a sampler */ sampler = ff_vk_init_sampler(vkctx, 0, VK_FILTER_LINEAR); if (!sampler) return AVERROR_EXTERNAL; s->pl = ff_vk_create_pipeline(vkctx, &s->qf); if (!s->pl) return AVERROR(ENOMEM); /* Normalize options */ s->opts.dist[0] = (s->opts.dist[0] / 100.0f) + 1.0f; s->opts.dist[1] = (s->opts.dist[1] / 100.0f) + 1.0f; { /* Create the shader */ FFVulkanDescriptorSetBinding desc_i[2] = { { .name = "input_img", .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .dimensions = 2, .elems = planes, .stages = VK_SHADER_STAGE_COMPUTE_BIT, .updater = s->input_images, .sampler = 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, .updater = s->output_images, }, }; FFVkSPIRVShader *shd = ff_vk_init_shader(s->pl, "chromaber_compute", VK_SHADER_STAGE_COMPUTE_BIT); if (!shd) return AVERROR(ENOMEM); ff_vk_set_compute_shader_sizes(shd, CGROUPS); GLSLC(0, layout(push_constant, std430) uniform pushConstants { ); GLSLC(1, vec2 dist; ); GLSLC(0, }; ); GLSLC(0, ); ff_vk_add_push_constant(s->pl, 0, sizeof(s->opts), VK_SHADER_STAGE_COMPUTE_BIT); RET(ff_vk_add_descriptor_set(vkctx, s->pl, shd, desc_i, FF_ARRAY_ELEMS(desc_i), 0)); /* set 0 */ GLSLD( distort_chroma_kernel ); GLSLC(0, void main() ); GLSLC(0, { ); GLSLC(1, ivec2 pos = ivec2(gl_GlobalInvocationID.xy); ); if (planes == 1) { GLSLC(1, distort_rgb(imageSize(output_img[0]), pos); ); } else { GLSLC(1, ivec2 size = imageSize(output_img[0]); ); GLSLC(1, vec2 npos = vec2(pos)/vec2(size); ); GLSLC(1, vec4 res = texture(input_img[0], npos); ); GLSLC(1, imageStore(output_img[0], pos, res); ); for (int i = 1; i < planes; i++) { GLSLC(0, ); GLSLF(1, size = imageSize(output_img[%i]); ,i); GLSLC(1, if (IS_WITHIN(pos, size)) { ); GLSLF(2, distort_chroma(%i, size, pos); ,i); GLSLC(1, } else { ); GLSLC(2, npos = vec2(pos)/vec2(size); ); GLSLF(2, res = texture(input_img[%i], npos); ,i); GLSLF(2, imageStore(output_img[%i], pos, res); ,i); GLSLC(1, } ); } } GLSLC(0, } ); RET(ff_vk_compile_shader(vkctx, shd, "main")); } RET(ff_vk_init_pipeline_layout(vkctx, s->pl)); RET(ff_vk_init_compute_pipeline(vkctx, s->pl)); /* Execution context */ RET(ff_vk_create_exec_ctx(vkctx, &s->exec, &s->qf)); s->initialized = 1; return 0; fail: return err; } static int process_frames(AVFilterContext *avctx, AVFrame *out_f, AVFrame *in_f) { int err = 0; VkCommandBuffer cmd_buf; ChromaticAberrationVulkanContext *s = avctx->priv; FFVulkanContext *vkctx = &s->vkctx; FFVulkanFunctions *vk = &vkctx->vkfn; AVVkFrame *in = (AVVkFrame *)in_f->data[0]; AVVkFrame *out = (AVVkFrame *)out_f->data[0]; int planes = av_pix_fmt_count_planes(s->vkctx.output_format); const VkFormat *input_formats = av_vkfmt_from_pixfmt(s->vkctx.input_format); const VkFormat *ouput_formats = av_vkfmt_from_pixfmt(s->vkctx.output_format); /* Update descriptors and init the exec context */ ff_vk_start_exec_recording(vkctx, s->exec); cmd_buf = ff_vk_get_exec_buf(s->exec); for (int i = 0; i < planes; i++) { RET(ff_vk_create_imageview(vkctx, s->exec, &s->input_images[i].imageView, in->img[i], input_formats[i], ff_comp_identity_map)); RET(ff_vk_create_imageview(vkctx, s->exec, &s->output_images[i].imageView, out->img[i], ouput_formats[i], ff_comp_identity_map)); s->input_images[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; s->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL; } ff_vk_update_descriptor_set(vkctx, s->pl, 0); for (int i = 0; i < planes; i++) { VkImageMemoryBarrier bar[2] = { { .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, .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, }, }; vk->CmdPipelineBarrier(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; out->layout[i] = bar[1].newLayout; out->access[i] = bar[1].dstAccessMask; } ff_vk_bind_pipeline_exec(vkctx, s->exec, s->pl); ff_vk_update_push_exec(vkctx, s->exec, VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(s->opts), &s->opts); vk->CmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGROUPS[0])/CGROUPS[0], FFALIGN(s->vkctx.output_height, CGROUPS[1])/CGROUPS[1], 1); ff_vk_add_exec_dep(vkctx, s->exec, in_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT); ff_vk_add_exec_dep(vkctx, s->exec, out_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT); err = ff_vk_submit_exec_queue(vkctx, s->exec); if (err) return err; ff_vk_qf_rotate(&s->qf); return err; fail: ff_vk_discard_exec_deps(s->exec); return err; } static int chromaber_vulkan_filter_frame(AVFilterLink *link, AVFrame *in) { int err; AVFilterContext *ctx = link->dst; ChromaticAberrationVulkanContext *s = ctx->priv; AVFilterLink *outlink = ctx->outputs[0]; AVFrame *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)); RET(process_frames(ctx, out, in)); err = av_frame_copy_props(out, in); if (err < 0) goto fail; av_frame_free(&in); return ff_filter_frame(outlink, out); fail: av_frame_free(&in); av_frame_free(&out); return err; } static void chromaber_vulkan_uninit(AVFilterContext *avctx) { ChromaticAberrationVulkanContext *s = avctx->priv; ff_vk_uninit(&s->vkctx); s->initialized = 0; } #define OFFSET(x) offsetof(ChromaticAberrationVulkanContext, x) #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) static const AVOption chromaber_vulkan_options[] = { { "dist_x", "Set horizontal distortion amount", OFFSET(opts.dist[0]), AV_OPT_TYPE_FLOAT, {.dbl = 0.0f}, -10.0f, 10.0f, .flags = FLAGS }, { "dist_y", "Set vertical distortion amount", OFFSET(opts.dist[1]), AV_OPT_TYPE_FLOAT, {.dbl = 0.0f}, -10.0f, 10.0f, .flags = FLAGS }, { NULL }, }; AVFILTER_DEFINE_CLASS(chromaber_vulkan); static const AVFilterPad chromaber_vulkan_inputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .filter_frame = &chromaber_vulkan_filter_frame, .config_props = &ff_vk_filter_config_input, }, }; static const AVFilterPad chromaber_vulkan_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .config_props = &ff_vk_filter_config_output, }, }; const AVFilter ff_vf_chromaber_vulkan = { .name = "chromaber_vulkan", .description = NULL_IF_CONFIG_SMALL("Offset chroma of input video (chromatic aberration)"), .priv_size = sizeof(ChromaticAberrationVulkanContext), .init = &ff_vk_filter_init, .uninit = &chromaber_vulkan_uninit, FILTER_INPUTS(chromaber_vulkan_inputs), FILTER_OUTPUTS(chromaber_vulkan_outputs), FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN), .priv_class = &chromaber_vulkan_class, .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, };