/* * 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 "scale_eval.h" #include "internal.h" #include "colorspace.h" #define CGROUPS (int [3]){ 32, 32, 1 } enum ScalerFunc { F_BILINEAR = 0, F_NEAREST, F_NB, }; typedef struct ScaleVulkanContext { FFVulkanContext vkctx; FFVkQueueFamilyCtx qf; FFVkExecContext *exec; FFVulkanPipeline *pl; FFVkBuffer params_buf; /* Shader updators, must be in the main filter struct */ VkDescriptorImageInfo input_images[3]; VkDescriptorImageInfo output_images[3]; VkDescriptorBufferInfo params_desc; char *out_format_string; char *w_expr; char *h_expr; enum ScalerFunc scaler; enum AVColorRange out_range; int initialized; } ScaleVulkanContext; static const char scale_bilinear[] = { C(0, vec4 scale_bilinear(int idx, ivec2 pos, vec2 crop_range, vec2 crop_off)) C(0, { ) C(1, vec2 npos = (vec2(pos) + 0.5f) / imageSize(output_img[idx]); ) C(1, npos *= crop_range; /* Reduce the range */ ) C(1, npos += crop_off; /* Offset the start */ ) C(1, return texture(input_img[idx], npos); ) C(0, } ) }; static const char rgb2yuv[] = { C(0, vec4 rgb2yuv(vec4 src, int fullrange) ) C(0, { ) C(1, src *= yuv_matrix; ) C(1, if (fullrange == 1) { ) C(2, src += vec4(0.0, 0.5, 0.5, 0.0); ) C(1, } else { ) C(2, src *= vec4(219.0 / 255.0, 224.0 / 255.0, 224.0 / 255.0, 1.0); ) C(2, src += vec4(16.0 / 255.0, 128.0 / 255.0, 128.0 / 255.0, 0.0); ) C(1, } ) C(1, return src; ) C(0, } ) }; static const char write_nv12[] = { C(0, void write_nv12(vec4 src, ivec2 pos) ) C(0, { ) C(1, imageStore(output_img[0], pos, vec4(src.r, 0.0, 0.0, 0.0)); ) C(1, pos /= ivec2(2); ) C(1, imageStore(output_img[1], pos, vec4(src.g, src.b, 0.0, 0.0)); ) C(0, } ) }; static const char write_420[] = { C(0, void write_420(vec4 src, ivec2 pos) ) C(0, { ) C(1, imageStore(output_img[0], pos, vec4(src.r, 0.0, 0.0, 0.0)); ) C(1, pos /= ivec2(2); ) C(1, imageStore(output_img[1], pos, vec4(src.g, 0.0, 0.0, 0.0)); ) C(1, imageStore(output_img[2], pos, vec4(src.b, 0.0, 0.0, 0.0)); ) C(0, } ) }; static const char write_444[] = { C(0, void write_444(vec4 src, ivec2 pos) ) C(0, { ) C(1, imageStore(output_img[0], pos, vec4(src.r, 0.0, 0.0, 0.0)); ) C(1, imageStore(output_img[1], pos, vec4(src.g, 0.0, 0.0, 0.0)); ) C(1, imageStore(output_img[2], pos, vec4(src.b, 0.0, 0.0, 0.0)); ) C(0, } ) }; static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in) { int err; FFVkSampler *sampler; VkFilter sampler_mode; ScaleVulkanContext *s = ctx->priv; FFVulkanContext *vkctx = &s->vkctx; int crop_x = in->crop_left; int crop_y = in->crop_top; int crop_w = in->width - (in->crop_left + in->crop_right); int crop_h = in->height - (in->crop_top + in->crop_bottom); int in_planes = av_pix_fmt_count_planes(s->vkctx.input_format); ff_vk_qf_init(vkctx, &s->qf, VK_QUEUE_COMPUTE_BIT, 0); switch (s->scaler) { case F_NEAREST: sampler_mode = VK_FILTER_NEAREST; break; case F_BILINEAR: sampler_mode = VK_FILTER_LINEAR; break; }; /* Create a sampler */ sampler = ff_vk_init_sampler(vkctx, 0, sampler_mode); if (!sampler) return AVERROR_EXTERNAL; s->pl = ff_vk_create_pipeline(vkctx, &s->qf); if (!s->pl) return AVERROR(ENOMEM); { /* Create the shader */ FFVulkanDescriptorSetBinding desc_i[2] = { { .name = "input_img", .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, .dimensions = 2, .elems = in_planes, .stages = VK_SHADER_STAGE_COMPUTE_BIT, .updater = s->input_images, .sampler = sampler, }, { .name = "output_img", .type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, .mem_layout = ff_vk_shader_rep_fmt(s->vkctx.output_format), .mem_quali = "writeonly", .dimensions = 2, .elems = av_pix_fmt_count_planes(s->vkctx.output_format), .stages = VK_SHADER_STAGE_COMPUTE_BIT, .updater = s->output_images, }, }; FFVulkanDescriptorSetBinding desc_b = { .name = "params", .type = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, .mem_quali = "readonly", .mem_layout = "std430", .stages = VK_SHADER_STAGE_COMPUTE_BIT, .updater = &s->params_desc, .buf_content = "mat4 yuv_matrix;", }; FFVkSPIRVShader *shd = ff_vk_init_shader(s->pl, "scale_compute", VK_SHADER_STAGE_COMPUTE_BIT); if (!shd) return AVERROR(ENOMEM); ff_vk_set_compute_shader_sizes(shd, CGROUPS); RET(ff_vk_add_descriptor_set(vkctx, s->pl, shd, desc_i, FF_ARRAY_ELEMS(desc_i), 0)); /* set 0 */ RET(ff_vk_add_descriptor_set(vkctx, s->pl, shd, &desc_b, 1, 0)); /* set 1 */ GLSLD( scale_bilinear ); if (s->vkctx.output_format != s->vkctx.input_format) { GLSLD( rgb2yuv ); } switch (s->vkctx.output_format) { case AV_PIX_FMT_NV12: GLSLD(write_nv12); break; case AV_PIX_FMT_YUV420P: GLSLD( write_420); break; case AV_PIX_FMT_YUV444P: GLSLD( write_444); break; default: break; } GLSLC(0, void main() ); GLSLC(0, { ); GLSLC(1, ivec2 size; ); GLSLC(1, ivec2 pos = ivec2(gl_GlobalInvocationID.xy); ); GLSLF(1, vec2 in_d = vec2(%i, %i); ,in->width, in->height); GLSLF(1, vec2 c_r = vec2(%i, %i) / in_d; ,crop_w, crop_h); GLSLF(1, vec2 c_o = vec2(%i, %i) / in_d; ,crop_x,crop_y); GLSLC(0, ); if (s->vkctx.output_format == s->vkctx.input_format) { for (int i = 0; i < desc_i[1].elems; i++) { GLSLF(1, size = imageSize(output_img[%i]); ,i); GLSLC(1, if (IS_WITHIN(pos, size)) { ); switch (s->scaler) { case F_NEAREST: case F_BILINEAR: GLSLF(2, vec4 res = scale_bilinear(%i, pos, c_r, c_o); ,i); GLSLF(2, imageStore(output_img[%i], pos, res); ,i); break; }; GLSLC(1, } ); } } else { GLSLC(1, vec4 res = scale_bilinear(0, pos, c_r, c_o); ); GLSLF(1, res = rgb2yuv(res, %i); ,s->out_range == AVCOL_RANGE_JPEG); switch (s->vkctx.output_format) { case AV_PIX_FMT_NV12: GLSLC(1, write_nv12(res, pos); ); break; case AV_PIX_FMT_YUV420P: GLSLC(1, write_420(res, pos); ); break; case AV_PIX_FMT_YUV444P: GLSLC(1, write_444(res, pos); ); break; default: return AVERROR(EINVAL); } } GLSLC(0, } ); RET(ff_vk_compile_shader(vkctx, shd, "main")); } RET(ff_vk_init_pipeline_layout(vkctx, s->pl)); RET(ff_vk_init_compute_pipeline(vkctx, s->pl)); if (s->vkctx.output_format != s->vkctx.input_format) { const AVLumaCoefficients *lcoeffs; double tmp_mat[3][3]; struct { float yuv_matrix[4][4]; } *par; lcoeffs = av_csp_luma_coeffs_from_avcsp(in->colorspace); if (!lcoeffs) { av_log(ctx, AV_LOG_ERROR, "Unsupported colorspace\n"); return AVERROR(EINVAL); } RET(ff_vk_create_buf(vkctx, &s->params_buf, sizeof(*par), VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT)); RET(ff_vk_map_buffers(vkctx, &s->params_buf, (uint8_t **)&par, 1, 0)); ff_fill_rgb2yuv_table(lcoeffs, tmp_mat); memset(par, 0, sizeof(*par)); for (int y = 0; y < 3; y++) for (int x = 0; x < 3; x++) par->yuv_matrix[x][y] = tmp_mat[x][y]; par->yuv_matrix[3][3] = 1.0; RET(ff_vk_unmap_buffers(vkctx, &s->params_buf, 1, 1)); s->params_desc.buffer = s->params_buf.buf; s->params_desc.range = VK_WHOLE_SIZE; ff_vk_update_descriptor_set(vkctx, s->pl, 1); } /* Execution context */ RET(ff_vk_create_exec_ctx(vkctx, &s->exec, &s->qf)); s->initialized = 1; return 0; fail: return err; } static int process_frames(AVFilterContext *avctx, AVFrame *out_f, AVFrame *in_f) { int err = 0; VkCommandBuffer cmd_buf; ScaleVulkanContext *s = avctx->priv; FFVulkanContext *vkctx = &s->vkctx; FFVulkanFunctions *vk = &vkctx->vkfn; AVVkFrame *in = (AVVkFrame *)in_f->data[0]; AVVkFrame *out = (AVVkFrame *)out_f->data[0]; VkImageMemoryBarrier barriers[AV_NUM_DATA_POINTERS*2]; int barrier_count = 0; const int planes = av_pix_fmt_count_planes(s->vkctx.input_format); const VkFormat *input_formats = av_vkfmt_from_pixfmt(s->vkctx.input_format); const VkFormat *output_formats = av_vkfmt_from_pixfmt(s->vkctx.output_format); /* Update descriptors and init the exec context */ ff_vk_start_exec_recording(vkctx, s->exec); cmd_buf = ff_vk_get_exec_buf(s->exec); for (int i = 0; i < planes; i++) { RET(ff_vk_create_imageview(vkctx, s->exec, &s->input_images[i].imageView, in->img[i], input_formats[i], ff_comp_identity_map)); RET(ff_vk_create_imageview(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(vkctx, s->pl, 0); for (int i = 0; i < planes; i++) { VkImageMemoryBarrier bar = { .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, }; memcpy(&barriers[barrier_count++], &bar, sizeof(VkImageMemoryBarrier)); in->layout[i] = bar.newLayout; in->access[i] = bar.dstAccessMask; } for (int i = 0; i < av_pix_fmt_count_planes(s->vkctx.output_format); i++) { VkImageMemoryBarrier bar = { .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, }; memcpy(&barriers[barrier_count++], &bar, sizeof(VkImageMemoryBarrier)); out->layout[i] = bar.newLayout; out->access[i] = bar.dstAccessMask; } vk->CmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0, 0, NULL, 0, NULL, barrier_count, barriers); ff_vk_bind_pipeline_exec(vkctx, s->exec, s->pl); vk->CmdDispatch(cmd_buf, FFALIGN(vkctx->output_width, CGROUPS[0])/CGROUPS[0], FFALIGN(vkctx->output_height, CGROUPS[1])/CGROUPS[1], 1); ff_vk_add_exec_dep(vkctx, s->exec, in_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT); ff_vk_add_exec_dep(vkctx, s->exec, out_f, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT); err = ff_vk_submit_exec_queue(vkctx, s->exec); if (err) return err; ff_vk_qf_rotate(&s->qf); return err; fail: ff_vk_discard_exec_deps(s->exec); return err; } static int scale_vulkan_filter_frame(AVFilterLink *link, AVFrame *in) { int err; AVFilterContext *ctx = link->dst; ScaleVulkanContext *s = ctx->priv; AVFilterLink *outlink = ctx->outputs[0]; AVFrame *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)); RET(process_frames(ctx, out, in)); err = av_frame_copy_props(out, in); if (err < 0) goto fail; if (s->out_range != AVCOL_RANGE_UNSPECIFIED) out->color_range = s->out_range; if (s->vkctx.output_format != s->vkctx.input_format) out->chroma_location = AVCHROMA_LOC_TOPLEFT; av_frame_free(&in); return ff_filter_frame(outlink, out); fail: av_frame_free(&in); av_frame_free(&out); return err; } static int scale_vulkan_config_output(AVFilterLink *outlink) { int err; AVFilterContext *avctx = outlink->src; ScaleVulkanContext *s = avctx->priv; FFVulkanContext *vkctx = &s->vkctx; AVFilterLink *inlink = outlink->src->inputs[0]; err = ff_scale_eval_dimensions(s, s->w_expr, s->h_expr, inlink, outlink, &vkctx->output_width, &vkctx->output_height); if (err < 0) return err; if (s->out_format_string) { s->vkctx.output_format = av_get_pix_fmt(s->out_format_string); if (s->vkctx.output_format == AV_PIX_FMT_NONE) { av_log(avctx, AV_LOG_ERROR, "Invalid output format.\n"); return AVERROR(EINVAL); } } else { s->vkctx.output_format = s->vkctx.input_format; } if (s->vkctx.output_format != s->vkctx.input_format) { if (!ff_vk_mt_is_np_rgb(s->vkctx.input_format)) { av_log(avctx, AV_LOG_ERROR, "Unsupported input format for conversion\n"); return AVERROR(EINVAL); } if (s->vkctx.output_format != AV_PIX_FMT_NV12 && s->vkctx.output_format != AV_PIX_FMT_YUV420P && s->vkctx.output_format != AV_PIX_FMT_YUV444P) { av_log(avctx, AV_LOG_ERROR, "Unsupported output format\n"); return AVERROR(EINVAL); } } else if (s->out_range != AVCOL_RANGE_UNSPECIFIED) { av_log(avctx, AV_LOG_ERROR, "Cannot change range without converting format\n"); return AVERROR(EINVAL); } return ff_vk_filter_config_output(outlink); } static void scale_vulkan_uninit(AVFilterContext *avctx) { ScaleVulkanContext *s = avctx->priv; ff_vk_free_buf(&s->vkctx, &s->params_buf); ff_vk_uninit(&s->vkctx); s->initialized = 0; } #define OFFSET(x) offsetof(ScaleVulkanContext, x) #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) static const AVOption scale_vulkan_options[] = { { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, {.str = "iw"}, .flags = FLAGS }, { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, {.str = "ih"}, .flags = FLAGS }, { "scaler", "Scaler function", OFFSET(scaler), AV_OPT_TYPE_INT, {.i64 = F_BILINEAR}, 0, F_NB, .flags = FLAGS, "scaler" }, { "bilinear", "Bilinear interpolation (fastest)", 0, AV_OPT_TYPE_CONST, {.i64 = F_BILINEAR}, 0, 0, .flags = FLAGS, "scaler" }, { "nearest", "Nearest (useful for pixel art)", 0, AV_OPT_TYPE_CONST, {.i64 = F_NEAREST}, 0, 0, .flags = FLAGS, "scaler" }, { "format", "Output video format (software format of hardware frames)", OFFSET(out_format_string), AV_OPT_TYPE_STRING, .flags = FLAGS }, { "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, "range" }, { "full", "Full range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" }, { "limited", "Limited range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" }, { "jpeg", "Full range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" }, { "mpeg", "Limited range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" }, { "tv", "Limited range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_MPEG }, 0, 0, FLAGS, "range" }, { "pc", "Full range", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_RANGE_JPEG }, 0, 0, FLAGS, "range" }, { NULL }, }; AVFILTER_DEFINE_CLASS(scale_vulkan); static const AVFilterPad scale_vulkan_inputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .filter_frame = &scale_vulkan_filter_frame, .config_props = &ff_vk_filter_config_input, }, }; static const AVFilterPad scale_vulkan_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .config_props = &scale_vulkan_config_output, }, }; const AVFilter ff_vf_scale_vulkan = { .name = "scale_vulkan", .description = NULL_IF_CONFIG_SMALL("Scale Vulkan frames"), .priv_size = sizeof(ScaleVulkanContext), .init = &ff_vk_filter_init, .uninit = &scale_vulkan_uninit, FILTER_INPUTS(scale_vulkan_inputs), FILTER_OUTPUTS(scale_vulkan_outputs), FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN), .priv_class = &scale_vulkan_class, .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, .flags = AVFILTER_FLAG_HWDEVICE, };