avfilter: add a hflip_vulkan filter

The following command is on how to apply hflip_vulkan filter: ffmpeg -init_hw_device vulkan -i input.264 -vf hwupload=extra_hw_frames=16,hflip_vulkan,hwdownload,format=yuv420p output.264

Wu Jianhua committed 4 years ago

Commit d313cb51 parent ff82bd54 files · +281 −0Browse files

Showing the changes to libavfilter (3 of 4 files). Show all

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3 files

libavfilter/Makefile +1 −0
libavfilter/allfilters.c +1 −0
libavfilter/vf_hflip_vulkan.c +278 −0

libavfilter/Makefile+1−0

@@ -298,6 +298,7 @@ OBJS-$(CONFIG_GREYEDGE_FILTER) += vf_colorconstancy.o · 297 unmodified lines
298	298	OBJS-$(CONFIG_GUIDED_FILTER) += vf_guided.o
299	299	OBJS-$(CONFIG_HALDCLUT_FILTER) += vf_lut3d.o framesync.o
300	300	OBJS-$(CONFIG_HFLIP_FILTER) += vf_hflip.o
	301	+OBJS-$(CONFIG_HFLIP_VULKAN_FILTER) += vf_hflip_vulkan.o vulkan.o
301	302	OBJS-$(CONFIG_HISTEQ_FILTER) += vf_histeq.o
302	303	OBJS-$(CONFIG_HISTOGRAM_FILTER) += vf_histogram.o
303	304	OBJS-$(CONFIG_HQDN3D_FILTER) += vf_hqdn3d.o

libavfilter/allfilters.c+1−0

@@ -283,6 +283,7 @@ extern const AVFilter ff_vf_greyedge; · 282 unmodified lines
283	283	extern const AVFilter ff_vf_guided;
284	284	extern const AVFilter ff_vf_haldclut;
285	285	extern const AVFilter ff_vf_hflip;
	286	+extern const AVFilter ff_vf_hflip_vulkan;
286	287	extern const AVFilter ff_vf_histeq;
287	288	extern const AVFilter ff_vf_histogram;
288	289	extern const AVFilter ff_vf_hqdn3d;

libavfilter/vf_hflip_vulkan.c+278−0

@@ -0,0 +1,278 @@
	1	+/*
	2	+ * copyright (c) 2021 Wu Jianhua <jianhua.wu@intel.com>
	3	+ * This file is part of FFmpeg.
	4	+ *
	5	+ * FFmpeg is free software; you can redistribute it and/or
	6	+ * modify it under the terms of the GNU Lesser General Public
	7	+ * License as published by the Free Software Foundation; either
	8	+ * version 2.1 of the License, or (at your option) any later version.
	9	+ *
	10	+ * FFmpeg is distributed in the hope that it will be useful,
	11	+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	+ * Lesser General Public License for more details.
	14	+ *
	15	+ * You should have received a copy of the GNU Lesser General Public
	16	+ * License along with FFmpeg; if not, write to the Free Software
	17	+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	18	+ */
	19	+
	20	+#include "libavutil/random_seed.h"
	21	+#include "libavutil/opt.h"
	22	+#include "vulkan_filter.h"
	23	+#include "internal.h"
	24	+
	25	+#define CGS 32
	26	+
	27	+typedef struct HFlipVulkanContext {
	28	+ FFVulkanContext vkctx;
	29	+ FFVkQueueFamilyCtx qf;
	30	+ FFVkExecContext *exec;
	31	+ FFVulkanPipeline *pl;
	32	+
	33	+ VkDescriptorImageInfo input_images[3];
	34	+ VkDescriptorImageInfo output_images[3];
	35	+
	36	+ int initialized;
	37	+} HFlipVulkanContext;
	38	+
	39	+static av_cold int init_filter(AVFilterContext avctx, AVFrame in)
	40	+{
	41	+ int err = 0;
	42	+ FFVkSPIRVShader *shd;
	43	+ HFlipVulkanContext *s = avctx->priv;
	44	+ FFVulkanContext *vkctx = &s->vkctx;
	45	+ const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
	46	+
	47	+ FFVulkanDescriptorSetBinding image_descs[] = {
	48	+ {
	49	+ .name = "input_image",
	50	+ .type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
	51	+ .dimensions = 2,
	52	+ .elems = planes,
	53	+ .stages = VK_SHADER_STAGE_COMPUTE_BIT,
	54	+ .updater = s->input_images,
	55	+ },
	56	+ {
	57	+ .name = "output_image",
	58	+ .type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
	59	+ .mem_layout = ff_vk_shader_rep_fmt(s->vkctx.output_format),
	60	+ .mem_quali = "writeonly",
	61	+ .dimensions = 2,
	62	+ .elems = planes,
	63	+ .stages = VK_SHADER_STAGE_COMPUTE_BIT,
	64	+ .updater = s->output_images,
	65	+ },
	66	+ };
	67	+
	68	+ image_descs[0].sampler = ff_vk_init_sampler(vkctx, 1, VK_FILTER_LINEAR);
	69	+ if (!image_descs[0].sampler)
	70	+ return AVERROR_EXTERNAL;
	71	+
	72	+ ff_vk_qf_init(vkctx, &s->qf, VK_QUEUE_COMPUTE_BIT, 0);
	73	+
	74	+ {
	75	+ s->pl = ff_vk_create_pipeline(vkctx, &s->qf);
	76	+ if (!s->pl)
	77	+ return AVERROR(ENOMEM);
	78	+
	79	+ shd = ff_vk_init_shader(s->pl, "hflip_compute", image_descs[0].stages);
	80	+ if (!shd)
	81	+ return AVERROR(ENOMEM);
	82	+
	83	+ ff_vk_set_compute_shader_sizes(shd, (int [3]){ CGS, 1, 1 });
	84	+ RET(ff_vk_add_descriptor_set(vkctx, s->pl, shd, image_descs, FF_ARRAY_ELEMS(image_descs), 0));
	85	+
	86	+ GLSLC(0, void main() );
	87	+ GLSLC(0, { );
	88	+ GLSLC(1, ivec2 size; );
	89	+ GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
	90	+ for (int i = 0; i < planes; i++) {
	91	+ GLSLC(0, );
	92	+ GLSLF(1, size = imageSize(output_image[%i]); ,i);
	93	+ GLSLC(1, if (IS_WITHIN(pos, size)) { );
	94	+ GLSLF(2, vec4 res = texture(input_image[%i], ivec2(size.x - pos.x, pos.y)); ,i);
	95	+ GLSLF(2, imageStore(output_image[%i], pos, res); ,i);
	96	+ GLSLC(1, } );
	97	+ }
	98	+ GLSLC(0, } );
	99	+
	100	+ RET(ff_vk_compile_shader(vkctx, shd, "main"));
	101	+ RET(ff_vk_init_pipeline_layout(vkctx, s->pl));
	102	+ RET(ff_vk_init_compute_pipeline(vkctx, s->pl));
	103	+ }
	104	+
	105	+ RET(ff_vk_create_exec_ctx(vkctx, &s->exec, &s->qf));
	106	+ s->initialized = 1;
	107	+
	108	+fail:
	109	+ return err;
	110	+}
	111	+
	112	+static av_cold void hflip_vulkan_uninit(AVFilterContext *avctx)
	113	+{
	114	+ HFlipVulkanContext *s = avctx->priv;
	115	+ ff_vk_uninit(&s->vkctx);
	116	+
	117	+ s->initialized = 0;
	118	+}
	119	+
	120	+static int process_frames(AVFilterContext avctx, AVFrame outframe, AVFrame *inframe)
	121	+{
	122	+ int err = 0;
	123	+ VkCommandBuffer cmd_buf;
	124	+ HFlipVulkanContext *s = avctx->priv;
	125	+ FFVulkanContext *vkctx = &s->vkctx;
	126	+ FFVulkanFunctions *vk = &s->vkctx.vkfn;
	127	+ AVVkFrame in = (AVVkFrame )inframe->data[0];
	128	+ AVVkFrame out = (AVVkFrame )outframe->data[0];
	129	+ const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
	130	+ const VkFormat *input_formats = av_vkfmt_from_pixfmt(s->vkctx.input_format);
	131	+ const VkFormat *output_formats = av_vkfmt_from_pixfmt(s->vkctx.output_format);
	132	+
	133	+ ff_vk_start_exec_recording(vkctx, s->exec);
	134	+ cmd_buf = ff_vk_get_exec_buf(s->exec);
	135	+
	136	+ for (int i = 0; i < planes; i++) {
	137	+ RET(ff_vk_create_imageview(vkctx, s->exec,
	138	+ &s->input_images[i].imageView, in->img[i],
	139	+ input_formats[i],
	140	+ ff_comp_identity_map));
	141	+
	142	+ RET(ff_vk_create_imageview(vkctx, s->exec,
	143	+ &s->output_images[i].imageView, out->img[i],
	144	+ output_formats[i],
	145	+ ff_comp_identity_map));
	146	+
	147	+ s->input_images[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
	148	+ s->output_images[i].imageLayout = VK_IMAGE_LAYOUT_GENERAL;
	149	+ }
	150	+
	151	+ ff_vk_update_descriptor_set(vkctx, s->pl, 0);
	152	+
	153	+ for (int i = 0; i < planes; i++) {
	154	+ VkImageMemoryBarrier barriers[] = {
	155	+ {
	156	+ .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
	157	+ .srcAccessMask = 0,
	158	+ .dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
	159	+ .oldLayout = in->layout[i],
	160	+ .newLayout = s->input_images[i].imageLayout,
	161	+ .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
	162	+ .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
	163	+ .image = in->img[i],
	164	+ .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
	165	+ .subresourceRange.levelCount = 1,
	166	+ .subresourceRange.layerCount = 1,
	167	+ },
	168	+ {
	169	+ .sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
	170	+ .srcAccessMask = 0,
	171	+ .dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT,
	172	+ .oldLayout = out->layout[i],
	173	+ .newLayout = s->output_images[i].imageLayout,
	174	+ .srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
	175	+ .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
	176	+ .image = out->img[i],
	177	+ .subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
	178	+ .subresourceRange.levelCount = 1,
	179	+ .subresourceRange.layerCount = 1,
	180	+ },
	181	+ };
	182	+
	183	+ vk->CmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
	184	+ VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0,
	185	+ 0, NULL, 0, NULL, FF_ARRAY_ELEMS(barriers), barriers);
	186	+
	187	+ in->layout[i] = barriers[0].newLayout;
	188	+ in->access[i] = barriers[0].dstAccessMask;
	189	+
	190	+ out->layout[i] = barriers[1].newLayout;
	191	+ out->access[i] = barriers[1].dstAccessMask;
	192	+ }
	193	+
	194	+ ff_vk_bind_pipeline_exec(vkctx, s->exec, s->pl);
	195	+ vk->CmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS)/CGS,
	196	+ s->vkctx.output_height, 1);
	197	+
	198	+ ff_vk_add_exec_dep(vkctx, s->exec, inframe, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
	199	+ ff_vk_add_exec_dep(vkctx, s->exec, outframe, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
	200	+
	201	+ err = ff_vk_submit_exec_queue(vkctx, s->exec);
	202	+ if (err)
	203	+ return err;
	204	+
	205	+ ff_vk_qf_rotate(&s->qf);
	206	+
	207	+ return 0;
	208	+fail:
	209	+ ff_vk_discard_exec_deps(s->exec);
	210	+ return err;
	211	+}
	212	+
	213	+static int hflip_vulkan_filter_frame(AVFilterLink link, AVFrame in)
	214	+{
	215	+ int err;
	216	+ AVFrame *out = NULL;
	217	+ AVFilterContext *ctx = link->dst;
	218	+ HFlipVulkanContext *s = ctx->priv;
	219	+ AVFilterLink *outlink = ctx->outputs[0];
	220	+
	221	+ out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
	222	+ if (!out) {
	223	+ err = AVERROR(ENOMEM);
	224	+ goto fail;
	225	+ }
	226	+
	227	+ if (!s->initialized)
	228	+ RET(init_filter(ctx, in));
	229	+
	230	+ RET(process_frames(ctx, out, in));
	231	+
	232	+ RET(av_frame_copy_props(out, in));
	233	+
	234	+ av_frame_free(&in);
	235	+
	236	+ return ff_filter_frame(outlink, out);
	237	+
	238	+fail:
	239	+ av_frame_free(&in);
	240	+ av_frame_free(&out);
	241	+ return err;
	242	+}
	243	+
	244	+static const AVOption hflip_vulkan_options[] = {
	245	+ { NULL },
	246	+};
	247	+
	248	+AVFILTER_DEFINE_CLASS(hflip_vulkan);
	249	+
	250	+static const AVFilterPad hflip_vulkan_inputs[] = {
	251	+ {
	252	+ .name = "default",
	253	+ .type = AVMEDIA_TYPE_VIDEO,
	254	+ .filter_frame = &hflip_vulkan_filter_frame,
	255	+ .config_props = &ff_vk_filter_config_input,
	256	+ }
	257	+};
	258	+
	259	+static const AVFilterPad hflip_vulkan_outputs[] = {
	260	+ {
	261	+ .name = "default",
	262	+ .type = AVMEDIA_TYPE_VIDEO,
	263	+ .config_props = &ff_vk_filter_config_output,
	264	+ }
	265	+};
	266	+
	267	+const AVFilter ff_vf_hflip_vulkan = {
	268	+ .name = "hflip_vulkan",
	269	+ .description = NULL_IF_CONFIG_SMALL("Horizontally flip the input video in Vulkan"),
	270	+ .priv_size = sizeof(HFlipVulkanContext),
	271	+ .init = &ff_vk_filter_init,
	272	+ .uninit = &hflip_vulkan_uninit,
	273	+ FILTER_INPUTS(hflip_vulkan_inputs),
	274	+ FILTER_OUTPUTS(hflip_vulkan_outputs),
	275	+ FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
	276	+ .priv_class = &hflip_vulkan_class,
	277	+ .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
	278	+};

avfilter: add a hflip_vulkan filter

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