From 3c6d72cc3314afd792ac7b04c65157326b2bbd07 Mon Sep 17 00:00:00 2001 From: Wu Jianhua Date: Tue, 11 Jan 2022 18:16:14 +0800 Subject: [PATCH 2/5] avfilter: add shader_vulkan filter The following command is on how to apply shader_vulkan filter: ffmpeg -init_hw_device vulkan -i input.264 -vf \ hwupload,shader_vulkan=path=Example.glsl:local_size_x=32:\ local_size_y=1:filter=nearest,hwdownload,format=yuv420p \ output.264 Example.glsl: // vf_shader_vulkan filter example void main() { for (int i = 0; i < ff_Planes; i++) { const ivec2 size = imageSize(ff_OutputImages[i]); ivec2 pos = ff_Position; if (IS_WITHIN(pos, size)) { vec4 res = texture(ff_InputImages[i], pos / 1.5); imageStore(ff_OutputImages[i], pos, res); } } } Signed-off-by: Wu Jianhua --- configure | 1 + libavfilter/Makefile | 1 + libavfilter/allfilters.c | 1 + libavfilter/vf_shader_vulkan.c | 335 +++++++++++++++++++++++++++++++++ 4 files changed, 338 insertions(+) create mode 100644 libavfilter/vf_shader_vulkan.c diff --git a/configure b/configure index 94f513288a..ae288ab2f7 100755 --- a/configure +++ b/configure @@ -3713,6 +3713,7 @@ scale_filter_deps="swscale" scale_qsv_filter_deps="libmfx" scdet_filter_select="scene_sad" select_filter_select="scene_sad" +shader_vulkan_filter_deps="vulkan spirv_compiler" sharpness_vaapi_filter_deps="vaapi" showcqt_filter_deps="avformat swscale" showcqt_filter_suggest="libfontconfig libfreetype" diff --git a/libavfilter/Makefile b/libavfilter/Makefile index 282967144b..2d6b8bb737 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -440,6 +440,7 @@ OBJS-$(CONFIG_SETPTS_FILTER) += setpts.o OBJS-$(CONFIG_SETRANGE_FILTER) += vf_setparams.o OBJS-$(CONFIG_SETSAR_FILTER) += vf_aspect.o OBJS-$(CONFIG_SETTB_FILTER) += settb.o +OBJS-$(CONFIG_SHADER_VULKAN_FILTER) += vf_shader_vulkan.o vulkan.o vulkan_filter.o OBJS-$(CONFIG_SHARPEN_NPP_FILTER) += vf_sharpen_npp.o OBJS-$(CONFIG_SHARPNESS_VAAPI_FILTER) += vf_misc_vaapi.o vaapi_vpp.o OBJS-$(CONFIG_SHEAR_FILTER) += vf_shear.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 714468afce..5f6382feb8 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -420,6 +420,7 @@ extern const AVFilter ff_vf_setpts; extern const AVFilter ff_vf_setrange; extern const AVFilter ff_vf_setsar; extern const AVFilter ff_vf_settb; +extern const AVFilter ff_vf_shader_vulkan; extern const AVFilter ff_vf_sharpen_npp; extern const AVFilter ff_vf_sharpness_vaapi; extern const AVFilter ff_vf_shear; diff --git a/libavfilter/vf_shader_vulkan.c b/libavfilter/vf_shader_vulkan.c new file mode 100644 index 0000000000..55807425a6 --- /dev/null +++ b/libavfilter/vf_shader_vulkan.c @@ -0,0 +1,335 @@ +/* + * copyright (c) 2022 Wu Jianhua + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavutil/random_seed.h" +#include "libavutil/opt.h" +#include "vulkan_filter.h" +#include "internal.h" + +typedef struct ShaderVulkanContext { + FFVulkanContext vkctx; + FFVkQueueFamilyCtx qf; + FFVkExecContext *exec; + FFVulkanPipeline *pl; + VkDescriptorImageInfo input_images[3]; + VkDescriptorImageInfo output_images[3]; + + char *input_name; + char *output_name; + char *filepath; + + VkFilter filter; + int local_size_x; + int local_size_y; + int initialized; +} ShaderVulkanContext; + +#define BUF_LEN 4096 + +static int load_shader_from_file(ShaderVulkanContext *s, FFVkSPIRVShader *shd) +{ + int len, err = 0; + char src[BUF_LEN]; + FILE *fp; + + if (!s->filepath) { + av_log(s, AV_LOG_ERROR, "Input shader language source " + "file not specified yet\n"); + return AVERROR(EINVAL); + } + + fp = av_fopen_utf8(s->filepath, "r"); + if (!fp) { + av_log(s, AV_LOG_ERROR, "Unable to open shader language " + "source file \"%s\".\n", s->filepath); + return AVERROR(ENOENT); + } + + while (!feof(fp)) { + len = fread(src, 1, BUF_LEN - 1, fp); + if (len == 0 && ferror(fp)) { + err = AVERROR(EIO); + goto fail; + } + + src[len] = '\0'; + av_bprintf(&shd->src, "%s", src); + } + +fail: + fclose(fp); + return err; +} + +static av_cold int init_filter(AVFilterContext *avctx, AVFrame *in) +{ + int err = 0; + FFVkSPIRVShader *shd; + ShaderVulkanContext *s = avctx->priv; + + const int planes = av_pix_fmt_count_planes(s->vkctx.output_format); + + FFVkSampler *sampler = ff_vk_init_sampler(&s->vkctx, 1, s->filter); + if (!sampler) + return AVERROR_EXTERNAL; + + { + FFVulkanDescriptorSetBinding image_descs[] = { + { + .name = s->input_name, + .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, + .dimensions = 2, + .elems = planes, + .stages = VK_SHADER_STAGE_COMPUTE_BIT, + .sampler = sampler, + .updater = s->input_images, + }, + { + .name = s->output_name, + .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, + }, + }; + + ff_vk_qf_init(&s->vkctx, &s->qf, VK_QUEUE_COMPUTE_BIT, 0); + + s->pl = ff_vk_create_pipeline(&s->vkctx, &s->qf); + if (!s->pl) { + err = AVERROR(ENOMEM); + goto fail; + } + + shd = ff_vk_init_shader(s->pl, "shader_compute", image_descs[0].stages); + if (!shd) { + err = AVERROR(ENOMEM); + goto fail; + } + + ff_vk_set_compute_shader_sizes(shd, (int [3]){ s->local_size_x, s->local_size_y, 1 }); + RET(ff_vk_add_descriptor_set(&s->vkctx, s->pl, shd, image_descs, FF_ARRAY_ELEMS(image_descs), 0)); + + GLSLF(0, #define ff_Planes %i ,planes); + GLSLC(0, #define ff_Position ivec2(gl_GlobalInvocationID.xy)); + GLSLC(0, ); + RET(load_shader_from_file(s, shd)); + + RET(ff_vk_compile_shader(&s->vkctx, shd, "main")); + RET(ff_vk_init_pipeline_layout(&s->vkctx, s->pl)); + RET(ff_vk_init_compute_pipeline(&s->vkctx, s->pl)); + } + + RET(ff_vk_create_exec_ctx(&s->vkctx, &s->exec, &s->qf)); + + s->initialized = 1; + +fail: + return err; +} + +static av_cold void uninit(AVFilterContext *avctx) +{ + ShaderVulkanContext *s = avctx->priv; + + ff_vk_uninit(&s->vkctx); + s->initialized = 0; +} + +static int process_frames(AVFilterContext *avctx, AVFrame *out_frame, AVFrame *in_frame) +{ + int err; + VkCommandBuffer cmd_buf; + ShaderVulkanContext *s = avctx->priv; + FFVulkanFunctions *vk = &s->vkctx.vkfn; + + const int planes = av_pix_fmt_count_planes(s->vkctx.output_format); + + AVVkFrame *in = (AVVkFrame *)in_frame->data[0]; + AVVkFrame *out = (AVVkFrame *)out_frame->data[0]; + + const VkFormat *input_formats = av_vkfmt_from_pixfmt(s->vkctx.input_format); + const VkFormat *output_formats = av_vkfmt_from_pixfmt(s->vkctx.output_format); + + ff_vk_start_exec_recording(&s->vkctx, s->exec); + cmd_buf = ff_vk_get_exec_buf(s->exec); + + for (int i = 0; i < planes; i++) { + RET(ff_vk_create_imageview(&s->vkctx, s->exec, &s->input_images[i].imageView, + in->img[i], + input_formats[i], + ff_comp_identity_map)); + + RET(ff_vk_create_imageview(&s->vkctx, s->exec, &s->output_images[i].imageView, + out->img[i], + output_formats[i], + ff_comp_identity_map)); + + s->input_images[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL; + s->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL; + } + + ff_vk_update_descriptor_set(&s->vkctx, s->pl, 0); + + for (int i = 0; i < planes; i++) { + VkImageMemoryBarrier barriers[] = { + { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, + .srcAccessMask = 0, + .dstAccessMask = VK_ACCESS_SHADER_READ_BIT, + .oldLayout = in->layout[i], + .newLayout = s->input_images[i].imageLayout, + .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, + .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, + .image = in->img[i], + .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .subresourceRange.levelCount = 1, + .subresourceRange.layerCount = 1, + }, + { + .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER, + .srcAccessMask = 0, + .dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT, + .oldLayout = out->layout[i], + .newLayout = s->output_images[i].imageLayout, + .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, + .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED, + .image = out->img[i], + .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT, + .subresourceRange.levelCount = 1, + .subresourceRange.layerCount = 1, + }, + }; + + vk->CmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, + VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0, + 0, NULL, 0, NULL, FF_ARRAY_ELEMS(barriers), barriers); + + in->layout[i] = barriers[0].newLayout; + in->access[i] = barriers[0].dstAccessMask; + + out->layout[i] = barriers[1].newLayout; + out->access[i] = barriers[1].dstAccessMask; + } + + ff_vk_bind_pipeline_exec(&s->vkctx, s->exec, s->pl); + + vk->CmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, s->local_size_x) / s->local_size_x, + FFALIGN(s->vkctx.output_height, s->local_size_y) / s->local_size_y, 1); + + ff_vk_add_exec_dep(&s->vkctx, s->exec, in_frame, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT); + ff_vk_add_exec_dep(&s->vkctx, s->exec, out_frame, 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 filter_frame(AVFilterLink *link, AVFrame *in) +{ + int err; + AVFrame *out = NULL; + AVFilterContext *avctx = link->dst; + ShaderVulkanContext *s = avctx->priv; + AVFilterLink *outlink = avctx->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(avctx, in)); + + RET(process_frames(avctx, 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); + + return err; +} + +#define OFFSET(x) offsetof(ShaderVulkanContext, x) +#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) + +static const AVOption shader_vulkan_options[] = { + { "path", "Path to the shader file", OFFSET(filepath), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, FLAGS }, + { "input", "Define name for input images", OFFSET(input_name), AV_OPT_TYPE_STRING, { .str = "ff_InputImages" }, 0, 0, FLAGS }, + { "output", "Define name for output images", OFFSET(output_name), AV_OPT_TYPE_STRING, { .str = "ff_OutputImages" }, 0, 0, FLAGS }, + + { "filter", "Set filter for sampler", OFFSET(filter), AV_OPT_TYPE_INT, { .i64 = VK_FILTER_LINEAR }, 0, VK_FILTER_LINEAR, FLAGS, "filter" }, + { "linear", "Filter frame in linear interpolation", 0, AV_OPT_TYPE_CONST, { .i64 = VK_FILTER_LINEAR }, 0, 0, .flags = FLAGS, "filter" }, + { "nearest", "Filter frame in nearest interpolation", 0, AV_OPT_TYPE_CONST, { .i64 = VK_FILTER_NEAREST }, 0, 0, .flags = FLAGS, "filter" }, + + { "local_size_x", "Set compute local size x", OFFSET(local_size_x), AV_OPT_TYPE_INT, { .i64 = 32 }, 0, 128, FLAGS }, + { "local_size_y", "Set compute local size y", OFFSET(local_size_y), AV_OPT_TYPE_INT, { .i64 = 32 }, 0, 128, FLAGS }, + + { NULL }, +}; + +AVFILTER_DEFINE_CLASS(shader_vulkan); + +static const AVFilterPad shader_vulkan_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = &filter_frame, + .config_props = &ff_vk_filter_config_input, + } +}; + +static const AVFilterPad shader_vulkan_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = &ff_vk_filter_config_output, + } +}; + +const AVFilter ff_vf_shader_vulkan = { + .name = "shader_vulkan", + .description = NULL_IF_CONFIG_SMALL("Filter frame in shader language"), + .priv_size = sizeof(ShaderVulkanContext), + .init = &ff_vk_filter_init, + .uninit = &uninit, + FILTER_INPUTS(shader_vulkan_inputs), + FILTER_OUTPUTS(shader_vulkan_outputs), + FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN), + .priv_class = &shader_vulkan_class, + .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, +}; -- 2.25.1