419 lines
16 KiB
C
419 lines
16 KiB
C
/*
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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 "scale_eval.h"
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#include "internal.h"
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#include "colorspace.h"
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#include "video.h"
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enum ScalerFunc {
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F_BILINEAR = 0,
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F_NEAREST,
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F_NB,
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};
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typedef struct ScaleVulkanContext {
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FFVulkanContext vkctx;
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int initialized;
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FFVulkanPipeline pl;
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FFVkExecPool e;
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FFVkQueueFamilyCtx qf;
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FFVkSPIRVShader shd;
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VkSampler sampler;
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/* Push constants / options */
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struct {
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float yuv_matrix[4][4];
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} opts;
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char *out_format_string;
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char *w_expr;
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char *h_expr;
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enum ScalerFunc scaler;
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enum AVColorRange out_range;
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} ScaleVulkanContext;
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static const char scale_bilinear[] = {
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C(0, vec4 scale_bilinear(int idx, ivec2 pos, vec2 crop_range, vec2 crop_off))
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C(0, { )
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C(1, vec2 npos = (vec2(pos) + 0.5f) / imageSize(output_img[idx]); )
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C(1, npos *= crop_range; /* Reduce the range */ )
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C(1, npos += crop_off; /* Offset the start */ )
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C(1, return texture(input_img[idx], npos); )
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C(0, } )
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};
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static const char rgb2yuv[] = {
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C(0, vec4 rgb2yuv(vec4 src, int fullrange) )
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C(0, { )
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C(1, src *= yuv_matrix; )
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C(1, if (fullrange == 1) { )
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C(2, src += vec4(0.0, 0.5, 0.5, 0.0); )
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C(1, } else { )
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C(2, src *= vec4(219.0 / 255.0, 224.0 / 255.0, 224.0 / 255.0, 1.0); )
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C(2, src += vec4(16.0 / 255.0, 128.0 / 255.0, 128.0 / 255.0, 0.0); )
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C(1, } )
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C(1, return src; )
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C(0, } )
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};
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static const char write_nv12[] = {
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C(0, void write_nv12(vec4 src, ivec2 pos) )
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C(0, { )
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C(1, imageStore(output_img[0], pos, vec4(src.r, 0.0, 0.0, 0.0)); )
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C(1, pos /= ivec2(2); )
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C(1, imageStore(output_img[1], pos, vec4(src.g, src.b, 0.0, 0.0)); )
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C(0, } )
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};
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static const char write_420[] = {
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C(0, void write_420(vec4 src, ivec2 pos) )
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C(0, { )
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C(1, imageStore(output_img[0], pos, vec4(src.r, 0.0, 0.0, 0.0)); )
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C(1, pos /= ivec2(2); )
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C(1, imageStore(output_img[1], pos, vec4(src.g, 0.0, 0.0, 0.0)); )
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C(1, imageStore(output_img[2], pos, vec4(src.b, 0.0, 0.0, 0.0)); )
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C(0, } )
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};
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static const char write_444[] = {
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C(0, void write_444(vec4 src, ivec2 pos) )
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C(0, { )
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C(1, imageStore(output_img[0], pos, vec4(src.r, 0.0, 0.0, 0.0)); )
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C(1, imageStore(output_img[1], pos, vec4(src.g, 0.0, 0.0, 0.0)); )
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C(1, imageStore(output_img[2], pos, vec4(src.b, 0.0, 0.0, 0.0)); )
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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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VkFilter sampler_mode;
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ScaleVulkanContext *s = ctx->priv;
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FFVulkanContext *vkctx = &s->vkctx;
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FFVkSPIRVShader *shd = &s->shd;
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FFVkSPIRVCompiler *spv;
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FFVulkanDescriptorSetBinding *desc;
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int crop_x = in->crop_left;
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int crop_y = in->crop_top;
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int crop_w = in->width - (in->crop_left + in->crop_right);
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int crop_h = in->height - (in->crop_top + in->crop_bottom);
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int in_planes = av_pix_fmt_count_planes(s->vkctx.input_format);
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switch (s->scaler) {
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case F_NEAREST:
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sampler_mode = VK_FILTER_NEAREST;
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break;
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case F_BILINEAR:
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sampler_mode = VK_FILTER_LINEAR;
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break;
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};
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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, 0, sampler_mode));
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RET(ff_vk_shader_init(&s->pl, &s->shd, "scale_compute",
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VK_SHADER_STAGE_COMPUTE_BIT, 0));
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ff_vk_shader_set_compute_sizes(&s->shd, 32, 32, 1);
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GLSLC(0, layout(push_constant, std430) uniform pushConstants { );
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GLSLC(1, mat4 yuv_matrix; );
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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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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 = in_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 = av_pix_fmt_count_planes(s->vkctx.output_format),
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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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GLSLD( scale_bilinear );
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if (s->vkctx.output_format != s->vkctx.input_format) {
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GLSLD( rgb2yuv );
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}
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switch (s->vkctx.output_format) {
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case AV_PIX_FMT_NV12: GLSLD(write_nv12); break;
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case AV_PIX_FMT_YUV420P: GLSLD( write_420); break;
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case AV_PIX_FMT_YUV444P: GLSLD( write_444); break;
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default: break;
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}
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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, ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
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GLSLF(1, vec2 in_d = vec2(%i, %i); ,in->width, in->height);
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GLSLF(1, vec2 c_r = vec2(%i, %i) / in_d; ,crop_w, crop_h);
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GLSLF(1, vec2 c_o = vec2(%i, %i) / in_d; ,crop_x,crop_y);
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GLSLC(0, );
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if (s->vkctx.output_format == s->vkctx.input_format) {
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for (int i = 0; i < desc[1].elems; i++) {
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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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switch (s->scaler) {
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case F_NEAREST:
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case F_BILINEAR:
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GLSLF(2, vec4 res = scale_bilinear(%i, pos, c_r, c_o); ,i);
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GLSLF(2, imageStore(output_img[%i], pos, res); ,i);
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break;
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};
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GLSLC(1, } );
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}
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} else {
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GLSLC(1, vec4 res = scale_bilinear(0, pos, c_r, c_o); );
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GLSLF(1, res = rgb2yuv(res, %i); ,s->out_range == AVCOL_RANGE_JPEG);
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switch (s->vkctx.output_format) {
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case AV_PIX_FMT_NV12: GLSLC(1, write_nv12(res, pos); ); break;
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case AV_PIX_FMT_YUV420P: GLSLC(1, write_420(res, pos); ); break;
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case AV_PIX_FMT_YUV444P: GLSLC(1, write_444(res, pos); ); break;
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default: return AVERROR(EINVAL);
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}
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}
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GLSLC(0, } );
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if (s->vkctx.output_format != s->vkctx.input_format) {
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const AVLumaCoefficients *lcoeffs;
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double tmp_mat[3][3];
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lcoeffs = av_csp_luma_coeffs_from_avcsp(in->colorspace);
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if (!lcoeffs) {
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av_log(ctx, AV_LOG_ERROR, "Unsupported colorspace\n");
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return AVERROR(EINVAL);
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}
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ff_fill_rgb2yuv_table(lcoeffs, tmp_mat);
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for (int y = 0; y < 3; y++)
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for (int x = 0; x < 3; x++)
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s->opts.yuv_matrix[x][y] = tmp_mat[x][y];
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s->opts.yuv_matrix[3][3] = 1.0;
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}
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RET(spv->compile_shader(spv, ctx, shd, &spv_data, &spv_len, "main",
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&spv_opaque));
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RET(ff_vk_shader_create(vkctx, shd, spv_data, spv_len, "main"));
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RET(ff_vk_init_compute_pipeline(vkctx, &s->pl, 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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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 scale_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
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{
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int err;
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AVFilterContext *ctx = link->dst;
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ScaleVulkanContext *s = ctx->priv;
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AVFilterLink *outlink = ctx->outputs[0];
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AVFrame *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, out, in,
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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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if (s->out_range != AVCOL_RANGE_UNSPECIFIED)
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out->color_range = s->out_range;
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if (s->vkctx.output_format != s->vkctx.input_format)
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out->chroma_location = AVCHROMA_LOC_TOPLEFT;
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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 int scale_vulkan_config_output(AVFilterLink *outlink)
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{
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int err;
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AVFilterContext *avctx = outlink->src;
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ScaleVulkanContext *s = avctx->priv;
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FFVulkanContext *vkctx = &s->vkctx;
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AVFilterLink *inlink = outlink->src->inputs[0];
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err = ff_scale_eval_dimensions(s, s->w_expr, s->h_expr, inlink, outlink,
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&vkctx->output_width,
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&vkctx->output_height);
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if (err < 0)
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return err;
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if (s->out_format_string) {
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s->vkctx.output_format = av_get_pix_fmt(s->out_format_string);
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if (s->vkctx.output_format == AV_PIX_FMT_NONE) {
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av_log(avctx, AV_LOG_ERROR, "Invalid output format.\n");
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return AVERROR(EINVAL);
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}
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} else {
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s->vkctx.output_format = s->vkctx.input_format;
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}
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if (s->vkctx.output_format != s->vkctx.input_format) {
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if (!ff_vk_mt_is_np_rgb(s->vkctx.input_format)) {
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av_log(avctx, AV_LOG_ERROR, "Unsupported input format for conversion\n");
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return AVERROR(EINVAL);
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}
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if (s->vkctx.output_format != AV_PIX_FMT_NV12 &&
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s->vkctx.output_format != AV_PIX_FMT_YUV420P &&
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s->vkctx.output_format != AV_PIX_FMT_YUV444P) {
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av_log(avctx, AV_LOG_ERROR, "Unsupported output format\n");
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return AVERROR(EINVAL);
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}
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} else if (s->out_range != AVCOL_RANGE_UNSPECIFIED) {
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av_log(avctx, AV_LOG_ERROR, "Cannot change range without converting format\n");
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return AVERROR(EINVAL);
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}
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return ff_vk_filter_config_output(outlink);
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}
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static void scale_vulkan_uninit(AVFilterContext *avctx)
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{
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ScaleVulkanContext *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(ScaleVulkanContext, x)
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#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
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static const AVOption scale_vulkan_options[] = {
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{ "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS },
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{ "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS },
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{ "scaler", "Scaler function", OFFSET(scaler), AV_OPT_TYPE_INT, {.i64 = F_BILINEAR}, 0, F_NB, .flags = FLAGS, .unit = "scaler" },
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{ "bilinear", "Bilinear interpolation (fastest)", 0, AV_OPT_TYPE_CONST, {.i64 = F_BILINEAR}, 0, 0, .flags = FLAGS, .unit = "scaler" },
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{ "nearest", "Nearest (useful for pixel art)", 0, AV_OPT_TYPE_CONST, {.i64 = F_NEAREST}, 0, 0, .flags = FLAGS, .unit = "scaler" },
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{ "format", "Output video format (software format of hardware frames)", OFFSET(out_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS },
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{ "out_range", "Output colour range (from 0 to 2) (default 0)", OFFSET(out_range), AV_OPT_TYPE_INT, {.i64 = AVCOL_RANGE_UNSPECIFIED}, AVCOL_RANGE_UNSPECIFIED, AVCOL_RANGE_JPEG, .flags = FLAGS, .unit = "range" },
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{ "full", "Full range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, .unit = "range" },
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{ "limited", "Limited range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, .unit = "range" },
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{ "jpeg", "Full range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, .unit = "range" },
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{ "mpeg", "Limited range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, .unit = "range" },
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{ "tv", "Limited range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, .unit = "range" },
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{ "pc", "Full range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, .unit = "range" },
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{ NULL },
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};
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AVFILTER_DEFINE_CLASS(scale_vulkan);
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static const AVFilterPad scale_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 = &scale_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 scale_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 = &scale_vulkan_config_output,
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},
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};
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const AVFilter ff_vf_scale_vulkan = {
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.name = "scale_vulkan",
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.description = NULL_IF_CONFIG_SMALL("Scale Vulkan frames"),
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.priv_size = sizeof(ScaleVulkanContext),
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.init = &ff_vk_filter_init,
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.uninit = &scale_vulkan_uninit,
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FILTER_INPUTS(scale_vulkan_inputs),
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FILTER_OUTPUTS(scale_vulkan_outputs),
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FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
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.priv_class = &scale_vulkan_class,
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.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
|
|
.flags = AVFILTER_FLAG_HWDEVICE,
|
|
};
|