/* * Copyright (c) Lynne * Copyright (C) 2018 Philip Langdale * Copyright (C) 2016 Thomas Mundt * * 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 "vulkan_spirv.h" #include "yadif.h" #include "internal.h" typedef struct BWDIFVulkanContext { YADIFContext yadif; FFVulkanContext vkctx; int initialized; FFVkExecPool e; FFVkQueueFamilyCtx qf; VkSampler sampler; FFVulkanPipeline pl; FFVkSPIRVShader shd; } BWDIFVulkanContext; typedef struct BWDIFParameters { int parity; int tff; int current_field; } BWDIFParameters; static const char filter_fn[] = { "const vec4 coef_lf[2] = { vec4(4309), vec4(213), };\n" "const vec4 coef_hf[3] = { vec4(5570), vec4(3801), vec4(1016) };\n" "const vec4 coef_sp[2] = { vec4(5077), vec4(981), };\n" C(0, ) C(0, vec4 process_intra(vec4 cur[4]) ) C(0, { ) C(1, return (coef_sp[0]*(cur[1] + cur[2]) - coef_sp[1]*(cur[0] + cur[3])) / (1 << 13); ) C(0, } ) C(0, ) C(0, vec4 process_line(vec4 prev2[5], vec4 prev1[2], vec4 cur[4], vec4 next1[2], vec4 next2[5]) ) C(0, { ) C(1, vec4 fc = cur[1]; ) C(1, vec4 fe = cur[2]; ) C(1, vec4 fs = prev2[2] + next2[2]; ) C(1, vec4 fd = fs / 2; ) C(0, ) C(1, vec4 temp_diff[3]; ) C(1, temp_diff[0] = abs(prev2[2] - next2[2]); ) C(1, temp_diff[1] = (abs(prev1[0] - fc) + abs(prev1[1] - fe)) / 2; ) C(1, temp_diff[1] = (abs(next1[0] - fc) + abs(next1[1] - fe)) / 2; ) C(1, vec4 diff = max(temp_diff[0] / 2, max(temp_diff[1], temp_diff[2])); ) C(1, bvec4 diff_mask = equal(diff, vec4(0)); ) C(0, ) C(1, vec4 fbs = prev2[1] + next2[1]; ) C(1, vec4 ffs = prev2[3] + next2[3]; ) C(1, vec4 fb = (fbs / 2) - fc; ) C(1, vec4 ff = (ffs / 2) - fe; ) C(1, vec4 dc = fd - fc; ) C(1, vec4 de = fd - fe; ) C(1, vec4 mmax = max(de, max(dc, min(fb, ff))); ) C(1, vec4 mmin = min(de, min(dc, max(fb, ff))); ) C(1, diff = max(diff, max(mmin, -mmax)); ) C(0, ) " vec4 interpolate_all = (((coef_hf[0]*(fs) - coef_hf[1]*(fbs + ffs) +\n" " coef_hf[2]*(prev2[0] + next2[0] + prev2[4] + next2[4])) / 4) +\n" " coef_lf[0]*(fc + fe) - coef_lf[1]*(cur[0] + cur[3])) / (1 << 13);\n" " vec4 interpolate_cur = (coef_sp[0]*(fc + fe) - coef_sp[1]*(cur[0] + cur[3])) / (1 << 13);\n" C(0, ) C(1, bvec4 interpolate_cnd1 = greaterThan(abs(fc - fe), temp_diff[0]); ) C(1, vec4 interpol = mix(interpolate_cur, interpolate_all, interpolate_cnd1); ) C(1, interpol = clamp(interpol, fd - diff, fd + diff); ) C(1, return mix(interpol, fd, diff_mask); ) C(0, } ) }; static av_cold int init_filter(AVFilterContext *ctx) { int err; uint8_t *spv_data; size_t spv_len; void *spv_opaque = NULL; BWDIFVulkanContext *s = ctx->priv; FFVulkanContext *vkctx = &s->vkctx; const int planes = av_pix_fmt_count_planes(s->vkctx.output_format); FFVkSPIRVShader *shd; FFVkSPIRVCompiler *spv; FFVulkanDescriptorSetBinding *desc; spv = ff_vk_spirv_init(); if (!spv) { av_log(ctx, AV_LOG_ERROR, "Unable to initialize SPIR-V compiler!\n"); return AVERROR_EXTERNAL; } ff_vk_qf_init(vkctx, &s->qf, VK_QUEUE_COMPUTE_BIT); RET(ff_vk_exec_pool_init(vkctx, &s->qf, &s->e, s->qf.nb_queues*4, 0, 0, 0, NULL)); RET(ff_vk_init_sampler(vkctx, &s->sampler, 1, VK_FILTER_NEAREST)); RET(ff_vk_shader_init(&s->pl, &s->shd, "bwdif_compute", VK_SHADER_STAGE_COMPUTE_BIT, 0)); shd = &s->shd; ff_vk_shader_set_compute_sizes(shd, 1, 64, 1); desc = (FFVulkanDescriptorSetBinding []) { { .name = "prev", .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .dimensions = 2, .elems = planes, .stages = VK_SHADER_STAGE_COMPUTE_BIT, .samplers = DUP_SAMPLER(s->sampler), }, { .name = "cur", .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .dimensions = 2, .elems = planes, .stages = VK_SHADER_STAGE_COMPUTE_BIT, .samplers = DUP_SAMPLER(s->sampler), }, { .name = "next", .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .dimensions = 2, .elems = planes, .stages = VK_SHADER_STAGE_COMPUTE_BIT, .samplers = DUP_SAMPLER(s->sampler), }, { .name = "dst", .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, }, }; RET(ff_vk_pipeline_descriptor_set_add(vkctx, &s->pl, shd, desc, 4, 0, 0)); GLSLC(0, layout(push_constant, std430) uniform pushConstants { ); GLSLC(1, int parity; ); GLSLC(1, int tff; ); GLSLC(1, int current_field; ); GLSLC(0, }; ); ff_vk_add_push_constant(&s->pl, 0, sizeof(BWDIFParameters), VK_SHADER_STAGE_COMPUTE_BIT); GLSLD( filter_fn ); GLSLC(0, void main() ); GLSLC(0, { ); GLSLC(1, vec4 res; ); GLSLC(1, ivec2 size; ); GLSLC(1, vec4 dcur[4]; ); GLSLC(1, vec4 prev1[2]; ); GLSLC(1, vec4 next1[2]; ); GLSLC(1, vec4 prev2[5]; ); GLSLC(1, vec4 next2[5]; ); GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); ); GLSLC(1, bool filter_field = ((pos.y ^ parity) & 1) == 1; ); GLSLF(1, bool is_intra = filter_field && (current_field == %i); ,YADIF_FIELD_END); GLSLC(1, bool field_parity = (parity ^ tff) != 0; ); GLSLC(0, ); for (int i = 0; i < planes; i++) { GLSLC(0, ); GLSLF(1, size = imageSize(dst[%i]); ,i); GLSLC(1, if (!IS_WITHIN(pos, size)) { ); GLSLC(2, return; ); GLSLC(1, } else if (is_intra) { ); GLSLF(2, dcur[0] = texture(cur[%i], pos - ivec2(0, 3)); ,i); GLSLF(2, dcur[1] = texture(cur[%i], pos - ivec2(0, 1)); ,i); GLSLF(2, dcur[2] = texture(cur[%i], pos + ivec2(0, 1)); ,i); GLSLF(2, dcur[3] = texture(cur[%i], pos + ivec2(0, 3)); ,i); GLSLC(0, ); GLSLC(2, res = process_intra(dcur); ); GLSLF(2, imageStore(dst[%i], pos, res); ,i); GLSLC(1, } else if (filter_field) { ); GLSLF(2, dcur[0] = texture(cur[%i], pos - ivec2(0, 3)); ,i); GLSLF(2, dcur[1] = texture(cur[%i], pos - ivec2(0, 1)); ,i); GLSLF(2, dcur[2] = texture(cur[%i], pos + ivec2(0, 1)); ,i); GLSLF(2, dcur[3] = texture(cur[%i], pos + ivec2(0, 3)); ,i); GLSLC(0, ); GLSLF(2, prev1[0] = texture(prev[%i], pos - ivec2(0, 1)); ,i); GLSLF(2, prev1[1] = texture(prev[%i], pos + ivec2(0, 1)); ,i); GLSLC(0, ); GLSLF(2, next1[0] = texture(next[%i], pos - ivec2(0, 1)); ,i); GLSLF(2, next1[1] = texture(next[%i], pos + ivec2(0, 1)); ,i); GLSLC(0, ); GLSLC(2, if (field_parity) { ); GLSLF(3, prev2[0] = texture(prev[%i], pos - ivec2(0, 4)); ,i); GLSLF(3, prev2[1] = texture(prev[%i], pos - ivec2(0, 2)); ,i); GLSLF(3, prev2[2] = texture(prev[%i], pos); ,i); GLSLF(3, prev2[3] = texture(prev[%i], pos + ivec2(0, 2)); ,i); GLSLF(3, prev2[4] = texture(prev[%i], pos + ivec2(0, 4)); ,i); GLSLC(0, ); GLSLF(3, next2[0] = texture(cur[%i], pos - ivec2(0, 4)); ,i); GLSLF(3, next2[1] = texture(cur[%i], pos - ivec2(0, 2)); ,i); GLSLF(3, next2[2] = texture(cur[%i], pos); ,i); GLSLF(3, next2[3] = texture(cur[%i], pos + ivec2(0, 2)); ,i); GLSLF(3, next2[4] = texture(cur[%i], pos + ivec2(0, 4)); ,i); GLSLC(2, } else { ); GLSLF(3, prev2[0] = texture(cur[%i], pos - ivec2(0, 4)); ,i); GLSLF(3, prev2[1] = texture(cur[%i], pos - ivec2(0, 2)); ,i); GLSLF(3, prev2[2] = texture(cur[%i], pos); ,i); GLSLF(3, prev2[3] = texture(cur[%i], pos + ivec2(0, 2)); ,i); GLSLF(3, prev2[4] = texture(cur[%i], pos + ivec2(0, 4)); ,i); GLSLC(0, ); GLSLF(3, next2[0] = texture(next[%i], pos - ivec2(0, 4)); ,i); GLSLF(3, next2[1] = texture(next[%i], pos - ivec2(0, 2)); ,i); GLSLF(3, next2[2] = texture(next[%i], pos); ,i); GLSLF(3, next2[3] = texture(next[%i], pos + ivec2(0, 2)); ,i); GLSLF(3, next2[4] = texture(next[%i], pos + ivec2(0, 4)); ,i); GLSLC(2, } ); GLSLC(0, ); GLSLC(2, res = process_line(prev2, prev1, dcur, next1, next2); ); GLSLF(2, imageStore(dst[%i], pos, res); ,i); GLSLC(1, } else { ); GLSLF(2, res = texture(cur[%i], pos); ,i); GLSLF(2, imageStore(dst[%i], pos, res); ,i); GLSLC(1, } ); } GLSLC(0, } ); RET(spv->compile_shader(spv, ctx, &s->shd, &spv_data, &spv_len, "main", &spv_opaque)); RET(ff_vk_shader_create(vkctx, &s->shd, spv_data, spv_len, "main")); RET(ff_vk_init_compute_pipeline(vkctx, &s->pl, &s->shd)); RET(ff_vk_exec_pipeline_register(vkctx, &s->e, &s->pl)); s->initialized = 1; fail: if (spv_opaque) spv->free_shader(spv, &spv_opaque); if (spv) spv->uninit(&spv); return err; } static void bwdif_vulkan_filter_frame(AVFilterContext *ctx, AVFrame *dst, int parity, int tff) { BWDIFVulkanContext *s = ctx->priv; YADIFContext *y = &s->yadif; BWDIFParameters params = { .parity = parity, .tff = tff, .current_field = y->current_field, }; ff_vk_filter_process_Nin(&s->vkctx, &s->e, &s->pl, dst, (AVFrame *[]){ y->prev, y->cur, y->next }, 3, s->sampler, ¶ms, sizeof(params)); if (y->current_field == YADIF_FIELD_END) y->current_field = YADIF_FIELD_NORMAL; } static void bwdif_vulkan_uninit(AVFilterContext *avctx) { BWDIFVulkanContext *s = avctx->priv; FFVulkanContext *vkctx = &s->vkctx; FFVulkanFunctions *vk = &vkctx->vkfn; ff_vk_exec_pool_free(vkctx, &s->e); ff_vk_pipeline_free(vkctx, &s->pl); ff_vk_shader_free(vkctx, &s->shd); if (s->sampler) vk->DestroySampler(vkctx->hwctx->act_dev, s->sampler, vkctx->hwctx->alloc); ff_vk_uninit(&s->vkctx); ff_yadif_uninit(avctx); s->initialized = 0; } static int bwdif_vulkan_config_input(AVFilterLink *inlink) { AVHWFramesContext *input_frames; AVFilterContext *avctx = inlink->dst; BWDIFVulkanContext *s = avctx->priv; FFVulkanContext *vkctx = &s->vkctx; if (!inlink->hw_frames_ctx) { av_log(inlink->dst, AV_LOG_ERROR, "Vulkan filtering requires a " "hardware frames context on the input.\n"); return AVERROR(EINVAL); } input_frames = (AVHWFramesContext *)inlink->hw_frames_ctx->data; if (input_frames->format != AV_PIX_FMT_VULKAN) return AVERROR(EINVAL); /* Extract the device and default output format from the first input. */ if (avctx->inputs[0] != inlink) return 0; /* Save the ref, without reffing it */ vkctx->input_frames_ref = inlink->hw_frames_ctx; /* Defaults */ vkctx->output_format = input_frames->sw_format; vkctx->output_width = inlink->w; vkctx->output_height = inlink->h; return 0; } static int bwdif_vulkan_config_output(AVFilterLink *outlink) { int err; AVFilterContext *avctx = outlink->src; BWDIFVulkanContext *s = avctx->priv; YADIFContext *y = &s->yadif; FFVulkanContext *vkctx = &s->vkctx; av_buffer_unref(&outlink->hw_frames_ctx); err = ff_vk_filter_init_context(avctx, vkctx, vkctx->input_frames_ref, vkctx->output_width, vkctx->output_height, vkctx->output_format); if (err < 0) return err; /* For logging */ vkctx->class = y->class; outlink->hw_frames_ctx = av_buffer_ref(vkctx->frames_ref); if (!outlink->hw_frames_ctx) return AVERROR(ENOMEM); err = ff_yadif_config_output_common(outlink); if (err < 0) return err; y->csp = av_pix_fmt_desc_get(vkctx->frames->sw_format); y->filter = bwdif_vulkan_filter_frame; if (AV_CEIL_RSHIFT(outlink->w, y->csp->log2_chroma_w) < 4 || AV_CEIL_RSHIFT(outlink->h, y->csp->log2_chroma_h) < 4) { av_log(avctx, AV_LOG_ERROR, "Video with planes less than 4 columns or lines is not supported\n"); return AVERROR(EINVAL); } return init_filter(avctx); } static const AVClass bwdif_vulkan_class = { .class_name = "bwdif_vulkan", .item_name = av_default_item_name, .option = ff_yadif_options, .version = LIBAVUTIL_VERSION_INT, .category = AV_CLASS_CATEGORY_FILTER, }; static const AVFilterPad bwdif_vulkan_inputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .filter_frame = ff_yadif_filter_frame, .config_props = &bwdif_vulkan_config_input, }, }; static const AVFilterPad bwdif_vulkan_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .request_frame = ff_yadif_request_frame, .config_props = &bwdif_vulkan_config_output, }, }; const AVFilter ff_vf_bwdif_vulkan = { .name = "bwdif_vulkan", .description = NULL_IF_CONFIG_SMALL("Deinterlace Vulkan frames via bwdif"), .priv_size = sizeof(BWDIFVulkanContext), .init = &ff_vk_filter_init, .uninit = &bwdif_vulkan_uninit, FILTER_INPUTS(bwdif_vulkan_inputs), FILTER_OUTPUTS(bwdif_vulkan_outputs), FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN), .priv_class = &bwdif_vulkan_class, .flags = AVFILTER_FLAG_HWDEVICE | AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, };