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avutil/vf_scdet_vulkan: add new filter

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Carbon copy of vf_scdet.

Signed-off-by: Niklas Haas <git@haasn.dev>
Sponsored-by: nxtedition
This commit is contained in:
Niklas Haas
2025-02-20 21:23:28 +01:00
parent 0894cfb168
commit 9568e40aeb
4 changed files with 415 additions and 0 deletions
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1
configure vendored
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@ -3987,6 +3987,7 @@ vpp_amf_filter_deps="amf"
scale_qsv_filter_deps="libmfx" scale_qsv_filter_deps="libmfx"
scale_qsv_filter_select="qsvvpp" scale_qsv_filter_select="qsvvpp"
scdet_filter_select="scene_sad" scdet_filter_select="scene_sad"
scdet_vulkan_filter_deps="vulkan spirv_compiler"
select_filter_select="scene_sad" select_filter_select="scene_sad"
sharpness_vaapi_filter_deps="vaapi" sharpness_vaapi_filter_deps="vaapi"
showcqt_filter_deps="avformat swscale" showcqt_filter_deps="avformat swscale"

1
libavfilter/Makefile
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@ -472,6 +472,7 @@ OBJS-$(CONFIG_SCALE_VULKAN_FILTER) += vf_scale_vulkan.o vulkan.o vulka
OBJS-$(CONFIG_SCALE2REF_FILTER) += vf_scale.o scale_eval.o framesync.o OBJS-$(CONFIG_SCALE2REF_FILTER) += vf_scale.o scale_eval.o framesync.o
OBJS-$(CONFIG_SCALE2REF_NPP_FILTER) += vf_scale_npp.o scale_eval.o OBJS-$(CONFIG_SCALE2REF_NPP_FILTER) += vf_scale_npp.o scale_eval.o
OBJS-$(CONFIG_SCDET_FILTER) += vf_scdet.o OBJS-$(CONFIG_SCDET_FILTER) += vf_scdet.o
OBJS-$(CONFIG_SCDET_VULKAN_FILTER) += vf_scdet_vulkan.o
OBJS-$(CONFIG_SCHARR_FILTER) += vf_convolution.o OBJS-$(CONFIG_SCHARR_FILTER) += vf_convolution.o
OBJS-$(CONFIG_SCROLL_FILTER) += vf_scroll.o OBJS-$(CONFIG_SCROLL_FILTER) += vf_scroll.o
OBJS-$(CONFIG_SEGMENT_FILTER) += f_segment.o OBJS-$(CONFIG_SEGMENT_FILTER) += f_segment.o

1
libavfilter/allfilters.c
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@ -444,6 +444,7 @@ extern const FFFilter ff_vf_scale_vulkan;
extern const FFFilter ff_vf_scale2ref; extern const FFFilter ff_vf_scale2ref;
extern const FFFilter ff_vf_scale2ref_npp; extern const FFFilter ff_vf_scale2ref_npp;
extern const FFFilter ff_vf_scdet; extern const FFFilter ff_vf_scdet;
extern const FFFilter ff_vf_scdet_vulkan;
extern const FFFilter ff_vf_scharr; extern const FFFilter ff_vf_scharr;
extern const FFFilter ff_vf_scroll; extern const FFFilter ff_vf_scroll;
extern const FFFilter ff_vf_segment; extern const FFFilter ff_vf_segment;

412
libavfilter/vf_scdet_vulkan.c Normal file
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@ -0,0 +1,412 @@
/*
* Copyright 2025 (c) Niklas Haas
*
* 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/avassert.h"
#include "libavutil/vulkan_spirv.h"
#include "libavutil/opt.h"
#include "libavutil/timestamp.h"
#include "vulkan_filter.h"
#include "filters.h"
typedef struct SceneDetectVulkanContext {
FFVulkanContext vkctx;
int initialized;
FFVkExecPool e;
AVVulkanDeviceQueueFamily *qf;
FFVulkanShader shd;
AVBufferPool *det_buf_pool;
double threshold;
int sc_pass;
int nb_planes;
double prev_mafd;
AVFrame *prev;
AVFrame *cur;
} SceneDetectVulkanContext;
typedef struct SceneDetectBuf {
#define SLICES 16
uint32_t frame_sad[SLICES];
} SceneDetectBuf;
static av_cold int init_filter(AVFilterContext *ctx)
{
int err;
uint8_t *spv_data;
size_t spv_len;
void *spv_opaque = NULL;
SceneDetectVulkanContext *s = ctx->priv;
FFVulkanContext *vkctx = &s->vkctx;
FFVulkanShader *shd;
FFVkSPIRVCompiler *spv;
FFVulkanDescriptorSetBinding *desc;
const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(s->vkctx.input_format);
const int lumaonly = !(pixdesc->flags & AV_PIX_FMT_FLAG_RGB) &&
(pixdesc->flags & AV_PIX_FMT_FLAG_PLANAR);
s->nb_planes = lumaonly ? 1 : av_pix_fmt_count_planes(s->vkctx.input_format);
spv = ff_vk_spirv_init();
if (!spv) {
av_log(ctx, AV_LOG_ERROR, "Unable to initialize SPIR-V compiler!\n");
return AVERROR_EXTERNAL;
}
s->qf = ff_vk_qf_find(vkctx, VK_QUEUE_COMPUTE_BIT, 0);
if (!s->qf) {
av_log(ctx, AV_LOG_ERROR, "Device has no compute queues\n");
err = AVERROR(ENOTSUP);
goto fail;
}
RET(ff_vk_exec_pool_init(vkctx, s->qf, &s->e, s->qf->num*4, 0, 0, 0, NULL));
RET(ff_vk_shader_init(vkctx, &s->shd, "scdet",
VK_SHADER_STAGE_COMPUTE_BIT,
(const char *[]) { "GL_KHR_shader_subgroup_arithmetic" }, 1,
32, 32, 1,
0));
shd = &s->shd;
desc = (FFVulkanDescriptorSetBinding []) {
{
.name = "prev_img",
.type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
.mem_layout = ff_vk_shader_rep_fmt(s->vkctx.input_format, FF_VK_REP_UINT),
.mem_quali = "readonly",
.dimensions = 2,
.elems = av_pix_fmt_count_planes(s->vkctx.input_format),
.stages = VK_SHADER_STAGE_COMPUTE_BIT,
}, {
.name = "cur_img",
.type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
.mem_layout = ff_vk_shader_rep_fmt(s->vkctx.input_format, FF_VK_REP_UINT),
.mem_quali = "readonly",
.dimensions = 2,
.elems = av_pix_fmt_count_planes(s->vkctx.input_format),
.stages = VK_SHADER_STAGE_COMPUTE_BIT,
}, {
.name = "sad_buffer",
.type = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
.stages = VK_SHADER_STAGE_COMPUTE_BIT,
.buf_content = "uint frame_sad[];",
}
};
RET(ff_vk_shader_add_descriptor_set(vkctx, &s->shd, desc, 3, 0, 0));
GLSLC(0, shared uint wg_sum; );
GLSLC(0, void main() );
GLSLC(0, { );
GLSLF(1, const uint slice = gl_WorkGroupID.x %% %u; ,SLICES);
GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
GLSLC(1, wg_sum = 0; );
GLSLC(1, barrier(); );
for (int i = 0; i < s->nb_planes; i++) {
GLSLF(1, if (IS_WITHIN(pos, imageSize(cur_img[%d]))) { ,i);
GLSLF(2, uvec4 prev = imageLoad(prev_img[%d], pos); ,i);
GLSLF(2, uvec4 cur = imageLoad(cur_img[%d], pos); ,i);
GLSLC(2, uvec4 sad = abs(ivec4(cur) - ivec4(prev)); );
GLSLC(2, uint sum = subgroupAdd(sad.x + sad.y + sad.z); );
GLSLC(2, if (subgroupElect()) );
GLSLC(3, atomicAdd(wg_sum, sum); );
GLSLC(1, } );
}
GLSLC(1, barrier(); );
GLSLC(1, if (gl_LocalInvocationIndex == 0) );
GLSLC(2, atomicAdd(frame_sad[slice], wg_sum); );
GLSLC(0, } );
RET(spv->compile_shader(vkctx, spv, &s->shd, &spv_data, &spv_len, "main",
&spv_opaque));
RET(ff_vk_shader_link(vkctx, &s->shd, spv_data, spv_len, "main"));
RET(ff_vk_shader_register_exec(vkctx, &s->e, &s->shd));
s->initialized = 1;
fail:
if (spv_opaque)
spv->free_shader(spv, &spv_opaque);
if (spv)
spv->uninit(&spv);
return err;
}
static double evaluate(AVFilterContext *ctx, const SceneDetectBuf *buf)
{
SceneDetectVulkanContext *s = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->vkctx.input_format);
const AVFilterLink *inlink = ctx->inputs[0];
uint64_t count;
double mafd, diff;
uint64_t sad = 0;
for (int i = 0; i < SLICES; i++)
sad += buf->frame_sad[i];
av_assert2(s->nb_planes == 1 || !(desc->log2_chroma_w || desc->log2_chroma_h));
count = s->nb_planes * inlink->w * inlink->h;
mafd = (double) sad * 100.0 / count / (1ULL << desc->comp[0].depth);
diff = fabs(mafd - s->prev_mafd);
s->prev_mafd = mafd;
return av_clipf(FFMIN(mafd, diff), 0.0, 100.0);
}
static int scdet_vulkan_filter_frame(AVFilterLink *link, AVFrame *in)
{
int err;
AVFilterContext *ctx = link->dst;
SceneDetectVulkanContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
VkImageView prev_views[AV_NUM_DATA_POINTERS];
VkImageView cur_views[AV_NUM_DATA_POINTERS];
VkImageMemoryBarrier2 img_bar[8];
int nb_img_bar = 0;
FFVulkanContext *vkctx = &s->vkctx;
FFVulkanFunctions *vk = &vkctx->vkfn;
FFVkExecContext *exec = NULL;
AVBufferRef *buf = NULL;
FFVkBuffer *buf_vk;
SceneDetectBuf *sad;
double score = 0.0;
char str[64];
if (!s->initialized)
RET(init_filter(ctx));
av_frame_free(&s->prev);
s->prev = s->cur;
s->cur = av_frame_clone(in);
if (!s->prev)
goto done;
RET(ff_vk_get_pooled_buffer(vkctx, &s->det_buf_pool, &buf,
VK_BUFFER_USAGE_TRANSFER_DST_BIT |
VK_BUFFER_USAGE_STORAGE_BUFFER_BIT,
NULL,
sizeof(SceneDetectBuf),
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT |
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
VK_MEMORY_PROPERTY_HOST_COHERENT_BIT));
buf_vk = (FFVkBuffer *)buf->data;
sad = (SceneDetectBuf *) buf_vk->mapped_mem;
exec = ff_vk_exec_get(vkctx, &s->e);
ff_vk_exec_start(vkctx, exec);
RET(ff_vk_exec_add_dep_frame(vkctx, exec, s->prev,
VK_PIPELINE_STAGE_2_NONE,
VK_PIPELINE_STAGE_2_COMPUTE_SHADER_BIT));
RET(ff_vk_create_imageviews(vkctx, exec, prev_views, s->prev, FF_VK_REP_UINT));
ff_vk_shader_update_img_array(vkctx, exec, &s->shd, s->prev, prev_views, 0, 0,
VK_IMAGE_LAYOUT_GENERAL, VK_NULL_HANDLE);
ff_vk_frame_barrier(vkctx, exec, s->prev, img_bar, &nb_img_bar,
VK_PIPELINE_STAGE_2_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_2_COMPUTE_SHADER_BIT,
VK_ACCESS_SHADER_READ_BIT,
VK_IMAGE_LAYOUT_GENERAL,
VK_QUEUE_FAMILY_IGNORED);
RET(ff_vk_exec_add_dep_frame(vkctx, exec, s->cur,
VK_PIPELINE_STAGE_2_NONE,
VK_PIPELINE_STAGE_2_COMPUTE_SHADER_BIT));
RET(ff_vk_create_imageviews(vkctx, exec, cur_views, s->cur, FF_VK_REP_UINT));
ff_vk_shader_update_img_array(vkctx, exec, &s->shd, s->cur, cur_views, 0, 1,
VK_IMAGE_LAYOUT_GENERAL, VK_NULL_HANDLE);
ff_vk_frame_barrier(vkctx, exec, s->cur, img_bar, &nb_img_bar,
VK_PIPELINE_STAGE_2_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_2_COMPUTE_SHADER_BIT,
VK_ACCESS_SHADER_READ_BIT,
VK_IMAGE_LAYOUT_GENERAL,
VK_QUEUE_FAMILY_IGNORED);
/* zero buffer */
vk->CmdPipelineBarrier2(exec->buf, &(VkDependencyInfo) {
.sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO,
.pBufferMemoryBarriers = &(VkBufferMemoryBarrier2) {
.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER_2,
.srcStageMask = VK_PIPELINE_STAGE_2_NONE,
.dstStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT,
.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.buffer = buf_vk->buf,
.size = buf_vk->size,
.offset = 0,
},
.bufferMemoryBarrierCount = 1,
});
vk->CmdFillBuffer(exec->buf, buf_vk->buf, 0, buf_vk->size, 0x0);
vk->CmdPipelineBarrier2(exec->buf, &(VkDependencyInfo) {
.sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO,
.pImageMemoryBarriers = img_bar,
.imageMemoryBarrierCount = nb_img_bar,
.pBufferMemoryBarriers = &(VkBufferMemoryBarrier2) {
.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER_2,
.srcStageMask = VK_PIPELINE_STAGE_2_TRANSFER_BIT,
.dstStageMask = VK_PIPELINE_STAGE_2_COMPUTE_SHADER_BIT,
.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT,
.dstAccessMask = VK_ACCESS_2_SHADER_STORAGE_READ_BIT |
VK_ACCESS_2_SHADER_STORAGE_WRITE_BIT,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.buffer = buf_vk->buf,
.size = buf_vk->size,
.offset = 0,
},
.bufferMemoryBarrierCount = 1,
});
RET(ff_vk_shader_update_desc_buffer(&s->vkctx, exec, &s->shd, 0, 2, 0,
buf_vk, 0, buf_vk->size,
VK_FORMAT_UNDEFINED));
ff_vk_exec_bind_shader(vkctx, exec, &s->shd);
vk->CmdDispatch(exec->buf,
FFALIGN(in->width, s->shd.lg_size[0]) / s->shd.lg_size[0],
FFALIGN(in->height, s->shd.lg_size[1]) / s->shd.lg_size[1],
s->shd.lg_size[2]);
vk->CmdPipelineBarrier2(exec->buf, &(VkDependencyInfo) {
.sType = VK_STRUCTURE_TYPE_DEPENDENCY_INFO,
.pBufferMemoryBarriers = &(VkBufferMemoryBarrier2) {
.sType = VK_STRUCTURE_TYPE_BUFFER_MEMORY_BARRIER_2,
.srcStageMask = VK_PIPELINE_STAGE_2_COMPUTE_SHADER_BIT,
.dstStageMask = VK_PIPELINE_STAGE_2_HOST_BIT,
.srcAccessMask = VK_ACCESS_2_SHADER_STORAGE_READ_BIT |
VK_ACCESS_2_SHADER_STORAGE_WRITE_BIT,
.dstAccessMask = VK_ACCESS_HOST_READ_BIT,
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
.buffer = buf_vk->buf,
.size = buf_vk->size,
.offset = 0,
},
.bufferMemoryBarrierCount = 1,
});
RET(ff_vk_exec_submit(vkctx, exec));
ff_vk_exec_wait(vkctx, exec);
score = evaluate(ctx, sad);
done:
snprintf(str, sizeof(str), "%0.3f", s->prev_mafd);
av_dict_set(&in->metadata, "lavfi.scd.mafd", str, 0);
snprintf(str, sizeof(str), "%0.3f", score);
av_dict_set(&in->metadata, "lavfi.scd.score", str, 0);
if (score >= s->threshold) {
const char *pts = av_ts2timestr(in->pts, &link->time_base);
av_dict_set(&in->metadata, "lavfi.scd.time", pts, 0);
av_log(s, AV_LOG_INFO, "lavfi.scd.score: %.3f, lavfi.scd.time: %s\n",
score, pts);
}
av_buffer_unref(&buf);
if (!s->sc_pass || score >= s->threshold)
return ff_filter_frame(outlink, in);
else {
av_frame_free(&in);
return 0;
}
fail:
if (exec)
ff_vk_exec_discard_deps(&s->vkctx, exec);
av_frame_free(&in);
av_buffer_unref(&buf);
return err;
}
static void scdet_vulkan_uninit(AVFilterContext *avctx)
{
SceneDetectVulkanContext *s = avctx->priv;
FFVulkanContext *vkctx = &s->vkctx;
av_frame_free(&s->prev);
av_frame_free(&s->cur);
ff_vk_exec_pool_free(vkctx, &s->e);
ff_vk_shader_free(vkctx, &s->shd);
av_buffer_pool_uninit(&s->det_buf_pool);
ff_vk_uninit(&s->vkctx);
s->initialized = 0;
}
#define OFFSET(x) offsetof(SceneDetectVulkanContext, x)
#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
static const AVOption scdet_vulkan_options[] = {
{ "threshold", "set scene change detect threshold", OFFSET(threshold), AV_OPT_TYPE_DOUBLE, {.dbl = 10.}, 0, 100., FLAGS },
{ "t", "set scene change detect threshold", OFFSET(threshold), AV_OPT_TYPE_DOUBLE, {.dbl = 10.}, 0, 100., FLAGS },
{ "sc_pass", "Set the flag to pass scene change frames", OFFSET(sc_pass), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, FLAGS },
{ "s", "Set the flag to pass scene change frames", OFFSET(sc_pass), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(scdet_vulkan);
static const AVFilterPad scdet_vulkan_inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = &scdet_vulkan_filter_frame,
.config_props = &ff_vk_filter_config_input,
},
};
static const AVFilterPad scdet_vulkan_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = &ff_vk_filter_config_output,
},
};
const FFFilter ff_vf_scdet_vulkan = {
.p.name = "scdet_vulkan",
.p.description = NULL_IF_CONFIG_SMALL("Detect video scene change"),
.p.priv_class = &scdet_vulkan_class,
.p.flags = AVFILTER_FLAG_HWDEVICE,
.priv_size = sizeof(SceneDetectVulkanContext),
.init = &ff_vk_filter_init,
.uninit = &scdet_vulkan_uninit,
FILTER_INPUTS(scdet_vulkan_inputs),
FILTER_OUTPUTS(scdet_vulkan_outputs),
FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
};