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259 lines
9.0 KiB
259 lines
9.0 KiB
/* |
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* Copyright (c) Lynne |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/random_seed.h" |
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#include "libavutil/opt.h" |
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#include "vulkan_filter.h" |
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#include "vulkan_spirv.h" |
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#include "filters.h" |
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#include "video.h" |
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typedef struct AvgBlurVulkanContext { |
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FFVulkanContext vkctx; |
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int initialized; |
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FFVkExecPool e; |
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FFVkQueueFamilyCtx qf; |
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VkSampler sampler; |
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FFVulkanPipeline pl; |
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FFVkSPIRVShader shd; |
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/* Push constants / options */ |
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struct { |
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float filter_norm[4]; |
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int32_t filter_len[2]; |
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} opts; |
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int size_x; |
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int size_y; |
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int planes; |
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} AvgBlurVulkanContext; |
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static const char blur_kernel[] = { |
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C(0, void distort(const ivec2 pos, const int idx) ) |
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C(0, { ) |
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C(1, vec4 sum = vec4(0); ) |
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C(1, for (int y = -filter_len.y; y <= filter_len.y; y++) ) |
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C(1, for (int x = -filter_len.x; x <= filter_len.x; x++) ) |
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C(2, sum += texture(input_img[idx], pos + ivec2(x, y)); ) |
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C(0, ) |
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C(1, imageStore(output_img[idx], pos, sum * filter_norm); ) |
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C(0, } ) |
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}; |
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static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in) |
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{ |
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int err; |
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uint8_t *spv_data; |
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size_t spv_len; |
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void *spv_opaque = NULL; |
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AvgBlurVulkanContext *s = ctx->priv; |
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FFVulkanContext *vkctx = &s->vkctx; |
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const int planes = av_pix_fmt_count_planes(s->vkctx.output_format); |
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FFVkSPIRVShader *shd; |
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FFVkSPIRVCompiler *spv; |
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FFVulkanDescriptorSetBinding *desc; |
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spv = ff_vk_spirv_init(); |
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if (!spv) { |
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av_log(ctx, AV_LOG_ERROR, "Unable to initialize SPIR-V compiler!\n"); |
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return AVERROR_EXTERNAL; |
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} |
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ff_vk_qf_init(vkctx, &s->qf, VK_QUEUE_COMPUTE_BIT); |
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RET(ff_vk_exec_pool_init(vkctx, &s->qf, &s->e, s->qf.nb_queues*4, 0, 0, 0, NULL)); |
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RET(ff_vk_init_sampler(vkctx, &s->sampler, 1, VK_FILTER_LINEAR)); |
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RET(ff_vk_shader_init(&s->pl, &s->shd, "avgblur_compute", |
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VK_SHADER_STAGE_COMPUTE_BIT, 0)); |
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shd = &s->shd; |
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ff_vk_shader_set_compute_sizes(shd, 32, 1, 1); |
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desc = (FFVulkanDescriptorSetBinding []) { |
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{ |
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.name = "input_img", |
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.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, |
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.dimensions = 2, |
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.elems = planes, |
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.stages = VK_SHADER_STAGE_COMPUTE_BIT, |
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.samplers = DUP_SAMPLER(s->sampler), |
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}, |
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{ |
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.name = "output_img", |
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.type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, |
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.mem_layout = ff_vk_shader_rep_fmt(s->vkctx.output_format), |
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.mem_quali = "writeonly", |
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.dimensions = 2, |
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.elems = planes, |
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.stages = VK_SHADER_STAGE_COMPUTE_BIT, |
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}, |
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}; |
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RET(ff_vk_pipeline_descriptor_set_add(vkctx, &s->pl, shd, desc, 2, 0, 0)); |
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GLSLC(0, layout(push_constant, std430) uniform pushConstants { ); |
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GLSLC(1, vec4 filter_norm; ); |
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GLSLC(1, ivec2 filter_len; ); |
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GLSLC(0, }; ); |
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GLSLC(0, ); |
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ff_vk_add_push_constant(&s->pl, 0, sizeof(s->opts), |
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VK_SHADER_STAGE_COMPUTE_BIT); |
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GLSLD( blur_kernel ); |
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GLSLC(0, void main() ); |
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GLSLC(0, { ); |
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GLSLC(1, ivec2 size; ); |
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GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); ); |
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for (int i = 0; i < planes; i++) { |
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GLSLC(0, ); |
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GLSLF(1, size = imageSize(output_img[%i]); ,i); |
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GLSLC(1, if (!IS_WITHIN(pos, size)) ); |
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GLSLC(2, return; ); |
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if (s->planes & (1 << i)) { |
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GLSLF(1, distort(pos, %i); ,i); |
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} else { |
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GLSLF(1, vec4 res = texture(input_img[%i], pos); ,i); |
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GLSLF(1, imageStore(output_img[%i], pos, res); ,i); |
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} |
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} |
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GLSLC(0, } ); |
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RET(spv->compile_shader(spv, ctx, &s->shd, &spv_data, &spv_len, "main", |
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&spv_opaque)); |
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RET(ff_vk_shader_create(vkctx, &s->shd, spv_data, spv_len, "main")); |
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RET(ff_vk_init_compute_pipeline(vkctx, &s->pl, &s->shd)); |
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RET(ff_vk_exec_pipeline_register(vkctx, &s->e, &s->pl)); |
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s->initialized = 1; |
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s->opts.filter_len[0] = s->size_x - 1; |
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s->opts.filter_len[1] = s->size_y - 1; |
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s->opts.filter_norm[0] = s->opts.filter_len[0]*2 + 1; |
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s->opts.filter_norm[0] = 1.0/(s->opts.filter_norm[0]*s->opts.filter_norm[0]); |
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s->opts.filter_norm[1] = s->opts.filter_norm[0]; |
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s->opts.filter_norm[2] = s->opts.filter_norm[0]; |
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s->opts.filter_norm[3] = s->opts.filter_norm[0]; |
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fail: |
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if (spv_opaque) |
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spv->free_shader(spv, &spv_opaque); |
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if (spv) |
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spv->uninit(&spv); |
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return err; |
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} |
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static int avgblur_vulkan_filter_frame(AVFilterLink *link, AVFrame *in) |
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{ |
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int err; |
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AVFrame *out = NULL; |
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AVFilterContext *ctx = link->dst; |
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AvgBlurVulkanContext *s = ctx->priv; |
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AVFilterLink *outlink = ctx->outputs[0]; |
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
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if (!out) { |
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err = AVERROR(ENOMEM); |
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goto fail; |
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} |
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if (!s->initialized) |
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RET(init_filter(ctx, in)); |
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RET(ff_vk_filter_process_simple(&s->vkctx, &s->e, &s->pl, |
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out, in, s->sampler, &s->opts, sizeof(s->opts))); |
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err = av_frame_copy_props(out, in); |
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if (err < 0) |
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goto fail; |
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av_frame_free(&in); |
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return ff_filter_frame(outlink, out); |
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fail: |
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av_frame_free(&in); |
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av_frame_free(&out); |
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return err; |
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} |
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static void avgblur_vulkan_uninit(AVFilterContext *avctx) |
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{ |
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AvgBlurVulkanContext *s = avctx->priv; |
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FFVulkanContext *vkctx = &s->vkctx; |
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FFVulkanFunctions *vk = &vkctx->vkfn; |
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ff_vk_exec_pool_free(vkctx, &s->e); |
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ff_vk_pipeline_free(vkctx, &s->pl); |
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ff_vk_shader_free(vkctx, &s->shd); |
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if (s->sampler) |
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vk->DestroySampler(vkctx->hwctx->act_dev, s->sampler, |
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vkctx->hwctx->alloc); |
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ff_vk_uninit(&s->vkctx); |
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s->initialized = 0; |
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} |
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#define OFFSET(x) offsetof(AvgBlurVulkanContext, x) |
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#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) |
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static const AVOption avgblur_vulkan_options[] = { |
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{ "sizeX", "Set horizontal radius", OFFSET(size_x), AV_OPT_TYPE_INT, { .i64 = 3 }, 1, 32, .flags = FLAGS }, |
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{ "sizeY", "Set vertical radius", OFFSET(size_y), AV_OPT_TYPE_INT, { .i64 = 3 }, 1, 32, .flags = FLAGS }, |
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{ "planes", "Set planes to filter (bitmask)", OFFSET(planes), AV_OPT_TYPE_INT, {.i64 = 0xF}, 0, 0xF, .flags = FLAGS }, |
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{ NULL }, |
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}; |
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AVFILTER_DEFINE_CLASS(avgblur_vulkan); |
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static const AVFilterPad avgblur_vulkan_inputs[] = { |
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{ |
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.name = "default", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.filter_frame = &avgblur_vulkan_filter_frame, |
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.config_props = &ff_vk_filter_config_input, |
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}, |
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}; |
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static const AVFilterPad avgblur_vulkan_outputs[] = { |
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{ |
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.name = "default", |
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.type = AVMEDIA_TYPE_VIDEO, |
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.config_props = &ff_vk_filter_config_output, |
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}, |
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}; |
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const AVFilter ff_vf_avgblur_vulkan = { |
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.name = "avgblur_vulkan", |
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.description = NULL_IF_CONFIG_SMALL("Apply avgblur mask to input video"), |
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.priv_size = sizeof(AvgBlurVulkanContext), |
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.init = &ff_vk_filter_init, |
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.uninit = &avgblur_vulkan_uninit, |
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FILTER_INPUTS(avgblur_vulkan_inputs), |
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FILTER_OUTPUTS(avgblur_vulkan_outputs), |
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FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN), |
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.priv_class = &avgblur_vulkan_class, |
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.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, |
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.flags = AVFILTER_FLAG_HWDEVICE, |
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};
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