[FFmpeg-devel] [PATCH 3/6] lavfi: add a Vulkan avgblur filter
Rostislav Pehlivanov
atomnuker at gmail.com
Thu Jun 21 19:55:40 EEST 2018
Signed-off-by: Rostislav Pehlivanov <atomnuker at gmail.com>
---
configure | 1 +
libavfilter/Makefile | 1 +
libavfilter/allfilters.c | 1 +
libavfilter/vf_avgblur_vulkan.c | 343 ++++++++++++++++++++++++++++++++
4 files changed, 346 insertions(+)
create mode 100644 libavfilter/vf_avgblur_vulkan.c
diff --git a/configure b/configure
index 97bd4225dc..eab7c5b630 100755
--- a/configure
+++ b/configure
@@ -3313,6 +3313,7 @@ ass_filter_deps="libass"
atempo_filter_deps="avcodec"
atempo_filter_select="rdft"
avgblur_opencl_filter_deps="opencl"
+avgblur_vulkan_filter_deps="vulkan libshaderc"
azmq_filter_deps="libzmq"
blackframe_filter_deps="gpl"
boxblur_filter_deps="gpl"
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 5b4be4966c..d1cab35e2e 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -150,6 +150,7 @@ OBJS-$(CONFIG_ATADENOISE_FILTER) += vf_atadenoise.o
OBJS-$(CONFIG_AVGBLUR_FILTER) += vf_avgblur.o
OBJS-$(CONFIG_AVGBLUR_OPENCL_FILTER) += vf_avgblur_opencl.o opencl.o \
opencl/avgblur.o
+OBJS-$(CONFIG_AVGBLUR_VULKAN_FILTER) += vf_avgblur_vulkan.o vulkan.o
OBJS-$(CONFIG_BBOX_FILTER) += bbox.o vf_bbox.o
OBJS-$(CONFIG_BENCH_FILTER) += f_bench.o
OBJS-$(CONFIG_BITPLANENOISE_FILTER) += vf_bitplanenoise.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index f2d27d2424..a05616f728 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -141,6 +141,7 @@ extern AVFilter ff_vf_ass;
extern AVFilter ff_vf_atadenoise;
extern AVFilter ff_vf_avgblur;
extern AVFilter ff_vf_avgblur_opencl;
+extern AVFilter ff_vf_avgblur_vulkan;
extern AVFilter ff_vf_bbox;
extern AVFilter ff_vf_bench;
extern AVFilter ff_vf_bitplanenoise;
diff --git a/libavfilter/vf_avgblur_vulkan.c b/libavfilter/vf_avgblur_vulkan.c
new file mode 100644
index 0000000000..5b89ae0718
--- /dev/null
+++ b/libavfilter/vf_avgblur_vulkan.c
@@ -0,0 +1,343 @@
+/*
+ * 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/opt.h"
+#include "vulkan.h"
+#include "internal.h"
+
+typedef struct AvgBlurVulkanContext {
+ VulkanFilterContext vkctx;
+
+ int initialized;
+ FFVkExecContext exec;
+
+ /* Shader updators, must be in the main filter struct */
+ VkDescriptorImageInfo input_images[3];
+ VkDescriptorImageInfo output_images[3];
+
+ int size_x;
+ int size_y;
+ int planes;
+} AvgBlurVulkanContext;
+
+static const char blur_kernel[] = {
+ C(0, #define CACHE_SIZE (ivec2(gl_WorkGroupSize) + FILTER_RADIUS*2) )
+ C(0, shared vec4 cache[AREA(CACHE_SIZE)]; )
+ C(0, )
+ C(0, void blur_kernel(int idx, ivec2 pos) )
+ C(0, { )
+ C(1, ivec2 d; )
+ C(1, const ivec2 s = CACHE_SIZE; )
+ C(1, const ivec2 w = ivec2(gl_WorkGroupSize); )
+ C(1, const ivec2 l = ivec2(gl_LocalInvocationID.xy); )
+ C(1, )
+ C(1, for (d.y = l.y; d.y < s.y; d.y += w.y) { )
+ C(2, for (d.x = l.x; d.x < s.x; d.x += w.x) { )
+ C(3, const ivec2 np = pos + d - l - FILTER_RADIUS; )
+ C(3, cache[d.y*s.x + d.x] = imageLoad(input_img[idx], np); )
+ C(2, } )
+ C(1, } )
+ C(0, )
+ C(1, barrier(); )
+ C(0, )
+ C(1, vec4 avg = vec4(0.0f); )
+ C(1, ivec2 start = ivec2(0); )
+ C(1, ivec2 end = FILTER_RADIUS*2 + 1; )
+ C(1, for (d.y = start.y; d.y < end.y; d.y++) )
+ C(2, for (d.x = start.x; d.x < end.x; d.x++) )
+ C(3, avg += cache[(l.y + d.y)*s.x + l.x + d.x]; )
+ C(0, )
+ C(1, avg /= AREA(end - start); )
+ C(1, imageStore(output_img[idx], pos, avg); )
+ C(0, } )
+};
+
+static av_cold int init_filter(AVFilterContext *ctx, AVFrame *in)
+{
+ int err;
+ AvgBlurVulkanContext *s = ctx->priv;
+
+ { /* Create the shader */
+ const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
+
+ SPIRVShader *shd = ff_vk_init_shader(ctx, "avgblur_compute",
+ VK_SHADER_STAGE_COMPUTE_BIT);
+ ff_vk_set_compute_shader_sizes(ctx, shd, (int [3]){ 16, 16, 1 });
+
+ VulkanDescriptorSetBinding desc_i[2] = {
+ {
+ .name = "input_img",
+ .type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
+ .mem_layout = ff_vk_shader_rep_fmt(s->vkctx.input_format),
+ .mem_quali = "readonly",
+ .dimensions = 2,
+ .elems = planes,
+ .stages = VK_SHADER_STAGE_COMPUTE_BIT,
+ .updater = s->input_images,
+ },
+ {
+ .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 = planes,
+ .stages = VK_SHADER_STAGE_COMPUTE_BIT,
+ .updater = s->output_images,
+ },
+ };
+
+ RET(ff_vk_add_descriptor_set(ctx, shd, desc_i, 2, 0)); /* set 0 */
+
+ GLSLF(0, #define FILTER_RADIUS ivec2(%i, %i), s->size_x, s->size_y);
+ GLSLD( blur_kernel );
+ GLSLC(0, void main() );
+ GLSLC(0, { );
+ GLSLC(1, ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
+ GLSLF(1, for (int i = 0; i < %i; i++) { ,planes);
+ GLSLC(2, if (!IS_WITHIN(pos, imageSize(input_img[i]))) { );
+ GLSLC(3, barrier(); );
+ GLSLC(3, continue; );
+ GLSLC(2, } );
+ GLSLC(2, else barrier(); ); /* Workaround */
+ GLSLF(2, if ((0x%x & (1 << i)) != 0) { ,s->planes);
+ GLSLC(3, blur_kernel(i, pos); );
+ GLSLC(2, } else { );
+ GLSLC(3, const vec4 val = imageLoad(input_img[i], pos); );
+ GLSLC(3, imageStore(output_img[i], pos, val); );
+ GLSLC(2, } );
+ GLSLC(1, } );
+ GLSLC(0, } );
+
+ RET(ff_vk_compile_shader(ctx, shd, "main"));
+ }
+
+ RET(ff_vk_init_pipeline_layout(ctx));
+
+ /* Execution context */
+ RET(ff_vk_create_exec_ctx(ctx, &s->exec,
+ s->vkctx.hwctx->queue_family_comp_index));
+
+ /* The pipeline */
+ RET(ff_vk_init_compute_pipeline(ctx));
+
+ s->initialized = 1;
+
+ return 0;
+
+fail:
+ return err;
+}
+
+static int process_frames(AVFilterContext *avctx, AVVkFrame *out, AVVkFrame *in)
+{
+ int err;
+ AvgBlurVulkanContext *s = avctx->priv;
+ int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
+
+ VkCommandBufferBeginInfo cmd_start = {
+ .sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO,
+ .flags = VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT,
+ };
+
+ VkComponentMapping null_map = {
+ .r = VK_COMPONENT_SWIZZLE_IDENTITY,
+ .g = VK_COMPONENT_SWIZZLE_IDENTITY,
+ .b = VK_COMPONENT_SWIZZLE_IDENTITY,
+ .a = VK_COMPONENT_SWIZZLE_IDENTITY,
+ };
+
+ for (int i = 0; i < planes; i++) {
+ RET(ff_vk_create_imageview(avctx, &s->input_images[i].imageView, in,
+ ff_vk_plane_rep_fmt(s->vkctx.input_format, i),
+ ff_vk_aspect_flags(s->vkctx.input_format, i),
+ null_map, NULL));
+
+ RET(ff_vk_create_imageview(avctx, &s->output_images[i].imageView, out,
+ ff_vk_plane_rep_fmt(s->vkctx.output_format, i),
+ ff_vk_aspect_flags(s->vkctx.output_format, i),
+ null_map, NULL));
+
+ 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(avctx, 0);
+
+ vkBeginCommandBuffer(s->exec.buf, &cmd_start);
+
+ {
+ VkImageMemoryBarrier bar[2] = {
+ {
+ .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
+ .srcAccessMask = 0,
+ .dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
+ .oldLayout = in->layout,
+ .newLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL,
+ .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
+ .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
+ .image = in->img,
+ .subresourceRange.aspectMask = ff_vk_aspect_flags(s->vkctx.input_format, -1),
+ .subresourceRange.levelCount = 1,
+ .subresourceRange.layerCount = 1,
+ },
+ {
+ .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
+ .srcAccessMask = 0,
+ .dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
+ .oldLayout = out->layout,
+ .newLayout = VK_IMAGE_LAYOUT_GENERAL,
+ .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
+ .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
+ .image = out->img,
+ .subresourceRange.aspectMask = ff_vk_aspect_flags(s->vkctx.output_format, -1),
+ .subresourceRange.levelCount = 1,
+ .subresourceRange.layerCount = 1,
+ },
+ };
+
+ vkCmdPipelineBarrier(s->exec.buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
+ VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0,
+ 0, NULL, 0, NULL, 2, bar);
+
+ in->layout = bar[0].newLayout;
+ in->access = bar[0].dstAccessMask;
+
+ out->layout = bar[1].newLayout;
+ out->access = bar[1].dstAccessMask;
+ }
+
+ vkCmdBindPipeline(s->exec.buf, VK_PIPELINE_BIND_POINT_COMPUTE, s->vkctx.pipeline);
+ vkCmdBindDescriptorSets(s->exec.buf, VK_PIPELINE_BIND_POINT_COMPUTE, s->vkctx.pipeline_layout, 0, s->vkctx.descriptor_sets_num, s->vkctx.desc_set, 0, 0);
+ vkCmdDispatch(s->exec.buf,
+ FFALIGN(s->vkctx.output_width, s->vkctx.shaders[0].local_size[0])/s->vkctx.shaders[0].local_size[0],
+ FFALIGN(s->vkctx.output_height, s->vkctx.shaders[0].local_size[1])/s->vkctx.shaders[0].local_size[1], 1);
+
+ vkEndCommandBuffer(s->exec.buf);
+
+ VkSubmitInfo s_info = {
+ .sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
+ .commandBufferCount = 1,
+ .pCommandBuffers = &s->exec.buf,
+ };
+
+ VkResult ret = vkQueueSubmit(s->exec.queue, 1, &s_info, s->exec.fence);
+ if (ret != VK_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "Unable to submit command buffer: %s\n",
+ ff_vk_ret2str(ret));
+ return AVERROR_EXTERNAL;
+ } else {
+ vkWaitForFences(s->vkctx.hwctx->act_dev, 1, &s->exec.fence, VK_TRUE, UINT64_MAX);
+ vkResetFences(s->vkctx.hwctx->act_dev, 1, &s->exec.fence);
+ }
+
+fail:
+
+ for (int i = 0; i < planes; i++) {
+ ff_vk_destroy_imageview(avctx, s->input_images[i].imageView);
+ ff_vk_destroy_imageview(avctx, s->output_images[i].imageView);
+ }
+
+ return err;
+}
+
+static int avgblur_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
+{
+ int err;
+ AVFilterContext *ctx = link->dst;
+ AvgBlurVulkanContext *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, (AVVkFrame *)out->data[0],
+ (AVVkFrame *) in->data[0]));
+
+ err = av_frame_copy_props(out, in);
+ if (err < 0)
+ goto fail;
+
+ av_frame_free(&in);
+
+ return ff_filter_frame(outlink, out);
+
+fail:
+ av_frame_free(&in);
+ av_frame_free(&out);
+ return err;
+}
+
+static void avgblur_vulkan_uninit(AVFilterContext *avctx)
+{
+ AvgBlurVulkanContext *s = avctx->priv;
+
+ ff_vk_free_exec_ctx(avctx, &s->exec);
+ ff_vk_filter_uninit(avctx);
+
+ s->initialized = 0;
+}
+
+#define OFFSET(x) offsetof(AvgBlurVulkanContext, x)
+#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
+static const AVOption avgblur_vulkan_options[] = {
+ { "sizeX", "Set horizontal radius", OFFSET(size_x), AV_OPT_TYPE_INT, {.i64 = 2}, 0, 32, .flags = FLAGS },
+ { "planes", "Set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64 = 0xF}, 0, 0xF, .flags = FLAGS },
+ { "sizeY", "Set vertical radius", OFFSET(size_y), AV_OPT_TYPE_INT, {.i64 = 2}, 0, 32, .flags = FLAGS },
+ { NULL },
+};
+
+AVFILTER_DEFINE_CLASS(avgblur_vulkan);
+
+static const AVFilterPad avgblur_vulkan_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = &avgblur_vulkan_filter_frame,
+ .config_props = &ff_vk_filter_config_input,
+ },
+ { NULL }
+};
+
+static const AVFilterPad avgblur_vulkan_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .config_props = &ff_vk_filter_config_output,
+ },
+ { NULL }
+};
+
+AVFilter ff_vf_avgblur_vulkan = {
+ .name = "avgblur_vulkan",
+ .description = NULL_IF_CONFIG_SMALL("Apply avgblur mask to input video"),
+ .priv_size = sizeof(AvgBlurVulkanContext),
+ .init = &ff_vk_filter_init,
+ .uninit = &avgblur_vulkan_uninit,
+ .query_formats = &ff_vk_filter_query_formats,
+ .inputs = avgblur_vulkan_inputs,
+ .outputs = avgblur_vulkan_outputs,
+ .priv_class = &avgblur_vulkan_class,
+ .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
+};
--
2.18.0.rc2.346.g013aa6912e
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