f6dd30df24
The issue is that libavfilter depends on libavcodec, and when doing a static build, if libavcodec also includes "libavfilter/vulkan.c", then during link-time, compiling programs will fail as there would be multiple definitions of the same symbols in both libavfilter and libavcodec's object files. Linkers are, however, more permitting if both files that include a common file that's used as a template are one-to-one identical. Hence, to make both files the same in the future, export all avfilter specific functions to a separate file. There is some work in progress to make templated files like this be compiled only once, so this is not a long-term solution. This also removes a macro that could be used to toggle SPIRV compilation capability on #include-time, as this could cause the files to be different.
523 lines
20 KiB
C
523 lines
20 KiB
C
/*
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* copyright (c) 2021 Wu Jianhua <jianhua.wu@intel.com>
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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 "internal.h"
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#define CGS 32
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#define GBLUR_MAX_KERNEL_SIZE 127
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typedef struct GBlurVulkanContext {
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FFVulkanContext vkctx;
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FFVkQueueFamilyCtx qf;
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FFVkExecContext *exec;
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FFVulkanPipeline *pl_hor;
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FFVulkanPipeline *pl_ver;
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FFVkBuffer params_buf_hor;
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FFVkBuffer params_buf_ver;
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VkDescriptorImageInfo input_images[3];
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VkDescriptorImageInfo tmp_images[3];
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VkDescriptorImageInfo output_images[3];
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VkDescriptorBufferInfo params_desc_hor;
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VkDescriptorBufferInfo params_desc_ver;
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int initialized;
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int size;
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int planes;
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int kernel_size;
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float sigma;
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float sigmaV;
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AVFrame *tmpframe;
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} GBlurVulkanContext;
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static const char gblur_horizontal[] = {
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C(0, void gblur(const ivec2 pos, const int index) )
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C(0, { )
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C(1, vec4 sum = texture(input_image[index], pos) * kernel[0]; )
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C(0, )
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C(1, for(int i = 1; i < kernel.length(); i++) { )
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C(2, sum += texture(input_image[index], pos + vec2(i, 0.0)) * kernel[i]; )
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C(2, sum += texture(input_image[index], pos - vec2(i, 0.0)) * kernel[i]; )
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C(1, } )
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C(0, )
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C(1, imageStore(output_image[index], pos, sum); )
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C(0, } )
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};
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static const char gblur_vertical[] = {
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C(0, void gblur(const ivec2 pos, const int index) )
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C(0, { )
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C(1, vec4 sum = texture(input_image[index], pos) * kernel[0]; )
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C(0, )
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C(1, for(int i = 1; i < kernel.length(); i++) { )
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C(2, sum += texture(input_image[index], pos + vec2(0.0, i)) * kernel[i]; )
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C(2, sum += texture(input_image[index], pos - vec2(0.0, i)) * kernel[i]; )
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C(1, } )
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C(0, )
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C(1, imageStore(output_image[index], pos, sum); )
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C(0, } )
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};
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static inline float gaussian(float sigma, float x)
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{
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return 1.0 / (sqrt(2.0 * M_PI) * sigma) *
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exp(-(x * x) / (2.0 * sigma * sigma));
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}
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static inline float gaussian_simpson_integration(float sigma, float a, float b)
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{
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return (b - a) * (1.0 / 6.0) * ((gaussian(sigma, a) +
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4.0 * gaussian(sigma, (a + b) * 0.5) + gaussian(sigma, b)));
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}
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static void init_gaussian_kernel(float *kernel, float sigma, float kernel_size)
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{
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int x;
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float sum;
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sum = 0;
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for (x = 0; x < kernel_size; x++) {
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kernel[x] = gaussian_simpson_integration(sigma, x - 0.5f, x + 0.5f);
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if (!x)
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sum += kernel[x];
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else
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sum += kernel[x] * 2.0;
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}
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/* Normalized */
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sum = 1.0 / sum;
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for (x = 0; x < kernel_size; x++) {
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kernel[x] *= sum;
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}
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}
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static av_cold void init_gaussian_params(GBlurVulkanContext *s)
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{
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if (!(s->size & 1)) {
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av_log(s, AV_LOG_WARNING, "kernel size should be odd\n");
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s->size++;
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}
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if (s->sigmaV <= 0)
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s->sigmaV = s->sigma;
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s->kernel_size = (s->size >> 1) + 1;
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s->tmpframe = NULL;
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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 = 0;
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char *kernel_def;
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uint8_t *kernel_mapped;
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FFVkSPIRVShader *shd;
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GBlurVulkanContext *s = ctx->priv;
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const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
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FFVulkanDescriptorSetBinding image_descs[] = {
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{
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.name = "input_image",
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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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},
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{
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.name = "output_image",
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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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FFVulkanDescriptorSetBinding buf_desc = {
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.name = "data",
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.type = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
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.mem_quali = "readonly",
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.mem_layout = "std430",
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.stages = VK_SHADER_STAGE_COMPUTE_BIT,
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.updater = NULL,
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.buf_content = NULL,
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};
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image_descs[0].sampler = ff_vk_init_sampler(&s->vkctx, 1, VK_FILTER_LINEAR);
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if (!image_descs[0].sampler)
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return AVERROR_EXTERNAL;
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init_gaussian_params(s);
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kernel_def = av_asprintf("float kernel[%i];", s->kernel_size);
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if (!kernel_def)
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return AVERROR(ENOMEM);
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buf_desc.buf_content = kernel_def;
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ff_vk_qf_init(&s->vkctx, &s->qf, VK_QUEUE_COMPUTE_BIT, 0);
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{ /* Create shader for the horizontal pass */
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image_descs[0].updater = s->input_images;
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image_descs[1].updater = s->tmp_images;
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buf_desc.updater = &s->params_desc_hor;
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s->pl_hor = ff_vk_create_pipeline(&s->vkctx, &s->qf);
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if (!s->pl_hor) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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shd = ff_vk_init_shader(s->pl_hor, "gblur_compute_hor", image_descs[0].stages);
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if (!shd) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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ff_vk_set_compute_shader_sizes(shd, (int [3]){ CGS, CGS, 1 });
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RET(ff_vk_add_descriptor_set(&s->vkctx, s->pl_hor, shd, image_descs, FF_ARRAY_ELEMS(image_descs), 0));
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RET(ff_vk_add_descriptor_set(&s->vkctx, s->pl_hor, shd, &buf_desc, 1, 0));
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GLSLD( gblur_horizontal );
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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_image[%i]); ,i);
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GLSLC(1, if (IS_WITHIN(pos, size)) { );
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if (s->planes & (1 << i)) {
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GLSLF(2, gblur(pos, %i); ,i);
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} else {
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GLSLF(2, vec4 res = texture(input_image[%i], pos); ,i);
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GLSLF(2, imageStore(output_image[%i], pos, res); ,i);
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}
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GLSLC(1, } );
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}
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GLSLC(0, } );
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RET(ff_vk_compile_shader(&s->vkctx, shd, "main"));
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RET(ff_vk_init_pipeline_layout(&s->vkctx, s->pl_hor));
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RET(ff_vk_init_compute_pipeline(&s->vkctx, s->pl_hor));
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RET(ff_vk_create_buf(&s->vkctx, &s->params_buf_hor, sizeof(float) * s->kernel_size,
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VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT));
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RET(ff_vk_map_buffers(&s->vkctx, &s->params_buf_hor, &kernel_mapped, 1, 0));
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init_gaussian_kernel((float *)kernel_mapped, s->sigma, s->kernel_size);
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RET(ff_vk_unmap_buffers(&s->vkctx, &s->params_buf_hor, 1, 1));
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s->params_desc_hor.buffer = s->params_buf_hor.buf;
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s->params_desc_hor.range = VK_WHOLE_SIZE;
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ff_vk_update_descriptor_set(&s->vkctx, s->pl_hor, 1);
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}
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{ /* Create shader for the vertical pass */
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image_descs[0].updater = s->tmp_images;
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image_descs[1].updater = s->output_images;
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buf_desc.updater = &s->params_desc_ver;
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s->pl_ver = ff_vk_create_pipeline(&s->vkctx, &s->qf);
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if (!s->pl_ver) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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shd = ff_vk_init_shader(s->pl_ver, "gblur_compute_ver", image_descs[0].stages);
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if (!shd) {
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err = AVERROR(ENOMEM);
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goto fail;
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}
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ff_vk_set_compute_shader_sizes(shd, (int [3]){ CGS, CGS, 1 });
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RET(ff_vk_add_descriptor_set(&s->vkctx, s->pl_ver, shd, image_descs, FF_ARRAY_ELEMS(image_descs), 0));
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RET(ff_vk_add_descriptor_set(&s->vkctx, s->pl_ver, shd, &buf_desc, 1, 0));
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GLSLD( gblur_vertical );
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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_image[%i]); ,i);
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GLSLC(1, if (IS_WITHIN(pos, size)) { );
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if (s->planes & (1 << i)) {
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GLSLF(2, gblur(pos, %i); ,i);
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} else {
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GLSLF(2, vec4 res = texture(input_image[%i], pos); ,i);
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GLSLF(2, imageStore(output_image[%i], pos, res); ,i);
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}
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GLSLC(1, } );
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}
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GLSLC(0, } );
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RET(ff_vk_compile_shader(&s->vkctx, shd, "main"));
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RET(ff_vk_init_pipeline_layout(&s->vkctx, s->pl_ver));
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RET(ff_vk_init_compute_pipeline(&s->vkctx, s->pl_ver));
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RET(ff_vk_create_buf(&s->vkctx, &s->params_buf_ver, sizeof(float) * s->kernel_size,
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VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT));
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RET(ff_vk_map_buffers(&s->vkctx, &s->params_buf_ver, &kernel_mapped, 1, 0));
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init_gaussian_kernel((float *)kernel_mapped, s->sigmaV, s->kernel_size);
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RET(ff_vk_unmap_buffers(&s->vkctx, &s->params_buf_ver, 1, 1));
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s->params_desc_ver.buffer = s->params_buf_ver.buf;
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s->params_desc_ver.range = VK_WHOLE_SIZE;
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ff_vk_update_descriptor_set(&s->vkctx, s->pl_ver, 1);
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}
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RET(ff_vk_create_exec_ctx(&s->vkctx, &s->exec, &s->qf));
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s->initialized = 1;
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fail:
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av_free(kernel_def);
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return err;
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}
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static av_cold void gblur_vulkan_uninit(AVFilterContext *avctx)
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{
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GBlurVulkanContext *s = avctx->priv;
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av_frame_free(&s->tmpframe);
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ff_vk_free_buf(&s->vkctx, &s->params_buf_hor);
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ff_vk_free_buf(&s->vkctx, &s->params_buf_ver);
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ff_vk_uninit(&s->vkctx);
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s->initialized = 0;
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}
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static int process_frames(AVFilterContext *avctx, AVFrame *outframe, AVFrame *inframe)
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{
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int err;
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VkCommandBuffer cmd_buf;
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const VkFormat *input_formats = NULL;
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const VkFormat *output_formats = NULL;
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GBlurVulkanContext *s = avctx->priv;
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FFVulkanFunctions *vk = &s->vkctx.vkfn;
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AVVkFrame *in = (AVVkFrame *)inframe->data[0];
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AVVkFrame *tmp = (AVVkFrame *)s->tmpframe->data[0];
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AVVkFrame *out = (AVVkFrame *)outframe->data[0];
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int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
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ff_vk_start_exec_recording(&s->vkctx, s->exec);
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cmd_buf = ff_vk_get_exec_buf(s->exec);
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input_formats = av_vkfmt_from_pixfmt(s->vkctx.input_format);
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output_formats = av_vkfmt_from_pixfmt(s->vkctx.output_format);
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for (int i = 0; i < planes; i++) {
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RET(ff_vk_create_imageview(&s->vkctx, s->exec, &s->input_images[i].imageView,
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in->img[i],
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input_formats[i],
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ff_comp_identity_map));
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RET(ff_vk_create_imageview(&s->vkctx, s->exec, &s->tmp_images[i].imageView,
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tmp->img[i],
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output_formats[i],
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ff_comp_identity_map));
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RET(ff_vk_create_imageview(&s->vkctx, s->exec, &s->output_images[i].imageView,
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out->img[i],
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output_formats[i],
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ff_comp_identity_map));
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s->input_images[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
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s->tmp_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
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s->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
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}
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ff_vk_update_descriptor_set(&s->vkctx, s->pl_hor, 0);
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ff_vk_update_descriptor_set(&s->vkctx, s->pl_ver, 0);
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for (int i = 0; i < planes; i++) {
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VkImageMemoryBarrier barriers[] = {
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{
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.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
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.srcAccessMask = 0,
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.dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
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.oldLayout = in->layout[i],
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.newLayout = s->input_images[i].imageLayout,
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.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
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.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
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.image = in->img[i],
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.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
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.subresourceRange.levelCount = 1,
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.subresourceRange.layerCount = 1,
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},
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{
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.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
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.srcAccessMask = 0,
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.dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT | VK_ACCESS_SHADER_READ_BIT,
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.oldLayout = tmp->layout[i],
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.newLayout = s->tmp_images[i].imageLayout,
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.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
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.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
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.image = tmp->img[i],
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.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
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.subresourceRange.levelCount = 1,
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.subresourceRange.layerCount = 1,
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},
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{
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.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
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.srcAccessMask = 0,
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.dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
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.oldLayout = out->layout[i],
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.newLayout = s->output_images[i].imageLayout,
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.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
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.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
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.image = out->img[i],
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.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
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.subresourceRange.levelCount = 1,
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.subresourceRange.layerCount = 1,
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},
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};
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vk->CmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
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VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0,
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0, NULL, 0, NULL, FF_ARRAY_ELEMS(barriers), barriers);
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in->layout[i] = barriers[0].newLayout;
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in->access[i] = barriers[0].dstAccessMask;
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tmp->layout[i] = barriers[1].newLayout;
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tmp->access[i] = barriers[1].dstAccessMask;
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out->layout[i] = barriers[2].newLayout;
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out->access[i] = barriers[2].dstAccessMask;
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}
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ff_vk_bind_pipeline_exec(&s->vkctx, s->exec, s->pl_hor);
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vk->CmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
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FFALIGN(s->vkctx.output_height, CGS)/CGS, 1);
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ff_vk_bind_pipeline_exec(&s->vkctx, s->exec, s->pl_ver);
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|
|
|
vk->CmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
|
|
FFALIGN(s->vkctx.output_height, CGS)/CGS, 1);
|
|
|
|
ff_vk_add_exec_dep(&s->vkctx, s->exec, inframe, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
|
|
ff_vk_add_exec_dep(&s->vkctx, s->exec, outframe, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
|
|
|
|
err = ff_vk_submit_exec_queue(&s->vkctx, s->exec);
|
|
if (err)
|
|
return err;
|
|
|
|
ff_vk_qf_rotate(&s->qf);
|
|
|
|
return 0;
|
|
fail:
|
|
ff_vk_discard_exec_deps(s->exec);
|
|
return err;
|
|
}
|
|
|
|
static int gblur_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
|
|
{
|
|
int err;
|
|
AVFrame *out = NULL;
|
|
AVFilterContext *ctx = link->dst;
|
|
GBlurVulkanContext *s = ctx->priv;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
|
|
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));
|
|
s->tmpframe = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!s->tmpframe) {
|
|
err = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
RET(process_frames(ctx, out, in));
|
|
|
|
RET(av_frame_copy_props(out, in));
|
|
|
|
av_frame_free(&in);
|
|
|
|
return ff_filter_frame(outlink, out);
|
|
|
|
fail:
|
|
av_frame_free(&in);
|
|
av_frame_free(&out);
|
|
av_frame_free(&s->tmpframe);
|
|
|
|
return err;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(GBlurVulkanContext, x)
|
|
#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
|
|
static const AVOption gblur_vulkan_options[] = {
|
|
{ "sigma", "Set sigma", OFFSET(sigma), AV_OPT_TYPE_FLOAT, {.dbl = 0.5}, 0.01, 1024.0, FLAGS },
|
|
{ "sigmaV", "Set vertical sigma", OFFSET(sigmaV), AV_OPT_TYPE_FLOAT, {.dbl = 0}, 0.0, 1024.0, FLAGS },
|
|
{ "planes", "Set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64 = 0xF}, 0, 0xF, FLAGS },
|
|
{ "size", "Set kernel size", OFFSET(size), AV_OPT_TYPE_INT, {.i64 = 19}, 1, GBLUR_MAX_KERNEL_SIZE, FLAGS },
|
|
{ NULL },
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(gblur_vulkan);
|
|
|
|
static const AVFilterPad gblur_vulkan_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = &gblur_vulkan_filter_frame,
|
|
.config_props = &ff_vk_filter_config_input,
|
|
}
|
|
};
|
|
|
|
static const AVFilterPad gblur_vulkan_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = &ff_vk_filter_config_output,
|
|
}
|
|
};
|
|
|
|
const AVFilter ff_vf_gblur_vulkan = {
|
|
.name = "gblur_vulkan",
|
|
.description = NULL_IF_CONFIG_SMALL("Gaussian Blur in Vulkan"),
|
|
.priv_size = sizeof(GBlurVulkanContext),
|
|
.init = &ff_vk_filter_init,
|
|
.uninit = &gblur_vulkan_uninit,
|
|
FILTER_INPUTS(gblur_vulkan_inputs),
|
|
FILTER_OUTPUTS(gblur_vulkan_outputs),
|
|
FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
|
|
.priv_class = &gblur_vulkan_class,
|
|
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
|
|
};
|