| /* |
| * 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 CGROUPS (int [3]){ 32, 32, 1 } |
| |
| typedef struct ChromaticAberrationVulkanContext { |
| VulkanFilterContext vkctx; |
| |
| int initialized; |
| FFVkExecContext *exec; |
| VulkanPipeline *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; |
| ChromaticAberrationVulkanContext *s = ctx->priv; |
| |
| /* Create a sampler */ |
| VkSampler *sampler = ff_vk_init_sampler(ctx, 0, VK_FILTER_LINEAR); |
| 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; |
| |
| s->pl = ff_vk_create_pipeline(ctx); |
| 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 */ |
| const int planes = av_pix_fmt_count_planes(s->vkctx.output_format); |
| VulkanDescriptorSetBinding 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, |
| .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, |
| .updater = s->output_images, |
| }, |
| }; |
| |
| SPIRVShader *shd = ff_vk_init_shader(ctx, s->pl, "chromaber_compute", |
| VK_SHADER_STAGE_COMPUTE_BIT); |
| if (!shd) |
| return AVERROR(ENOMEM); |
| |
| ff_vk_set_compute_shader_sizes(ctx, shd, CGROUPS); |
| |
| GLSLC(0, layout(push_constant, std430) uniform pushConstants { ); |
| GLSLC(1, vec2 dist; ); |
| GLSLC(0, }; ); |
| GLSLC(0, ); |
| |
| ff_vk_add_push_constant(ctx, s->pl, 0, sizeof(s->opts), |
| VK_SHADER_STAGE_COMPUTE_BIT); |
| |
| RET(ff_vk_add_descriptor_set(ctx, s->pl, shd, desc_i, 2, 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(ctx, shd, "main")); |
| } |
| |
| RET(ff_vk_init_pipeline_layout(ctx, s->pl)); |
| RET(ff_vk_init_compute_pipeline(ctx, s->pl)); |
| |
| /* 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 *in_f) |
| { |
| int err = 0; |
| VkCommandBuffer cmd_buf; |
| ChromaticAberrationVulkanContext *s = avctx->priv; |
| 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); |
| |
| /* 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->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->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL; |
| } |
| |
| ff_vk_update_descriptor_set(avctx, 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, |
| }, |
| }; |
| |
| 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; |
| |
| out->layout[i] = bar[1].newLayout; |
| out->access[i] = bar[1].dstAccessMask; |
| } |
| |
| ff_vk_bind_pipeline_exec(avctx, s->exec, s->pl); |
| |
| ff_vk_update_push_exec(avctx, s->exec, VK_SHADER_STAGE_COMPUTE_BIT, |
| 0, sizeof(s->opts), &s->opts); |
| |
| vkCmdDispatch(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(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 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_filter_uninit(avctx); |
| |
| 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, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad chromaber_vulkan_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = &ff_vk_filter_config_output, |
| }, |
| { NULL } |
| }; |
| |
| 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, |
| .query_formats = &ff_vk_filter_query_formats, |
| .inputs = chromaber_vulkan_inputs, |
| .outputs = chromaber_vulkan_outputs, |
| .priv_class = &chromaber_vulkan_class, |
| .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, |
| }; |
