mirror of https://git.ffmpeg.org/ffmpeg.git
500 lines
18 KiB
C
500 lines
18 KiB
C
|
/*
|
||
|
* copyright (c) 2021 Wu Jianhua <jianhua.wu@intel.com>
|
||
|
* The blend modes are based on the blend.c.
|
||
|
*
|
||
|
* 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 "internal.h"
|
||
|
#include "framesync.h"
|
||
|
#include "blend.h"
|
||
|
|
||
|
#define CGS 32
|
||
|
|
||
|
#define IN_TOP 0
|
||
|
#define IN_BOTTOM 1
|
||
|
|
||
|
typedef struct FilterParamsVulkan {
|
||
|
const char *blend;
|
||
|
const char *blend_func;
|
||
|
double opacity;
|
||
|
enum BlendMode mode;
|
||
|
} FilterParamsVulkan;
|
||
|
|
||
|
typedef struct BlendVulkanContext {
|
||
|
FFVulkanContext vkctx;
|
||
|
FFVkQueueFamilyCtx qf;
|
||
|
FFVkExecContext *exec;
|
||
|
FFVulkanPipeline *pl;
|
||
|
FFFrameSync fs;
|
||
|
|
||
|
VkDescriptorImageInfo top_images[3];
|
||
|
VkDescriptorImageInfo bottom_images[3];
|
||
|
VkDescriptorImageInfo output_images[3];
|
||
|
|
||
|
FilterParamsVulkan params[4];
|
||
|
double all_opacity;
|
||
|
enum BlendMode all_mode;
|
||
|
|
||
|
int initialized;
|
||
|
} BlendVulkanContext;
|
||
|
|
||
|
#define DEFINE_BLEND_MODE(MODE, EXPR) \
|
||
|
static const char blend_##MODE[] = "blend_"#MODE; \
|
||
|
static const char blend_##MODE##_func[] = { \
|
||
|
C(0, vec4 blend_##MODE(vec4 top, vec4 bottom, float opacity) { ) \
|
||
|
C(1, vec4 dst = EXPR; ) \
|
||
|
C(1, return dst; ) \
|
||
|
C(0, } ) \
|
||
|
};
|
||
|
|
||
|
#define A top
|
||
|
#define B bottom
|
||
|
|
||
|
DEFINE_BLEND_MODE(NORMAL, A * opacity + B * (1.0f - opacity))
|
||
|
|
||
|
static inline void init_blend_func(FilterParamsVulkan *param)
|
||
|
{
|
||
|
#define CASE(MODE) case BLEND_##MODE: \
|
||
|
param->blend = blend_##MODE;\
|
||
|
param->blend_func = blend_##MODE##_func; \
|
||
|
break;
|
||
|
|
||
|
switch (param->mode) {
|
||
|
CASE(NORMAL)
|
||
|
default: param->blend = NULL; break;
|
||
|
}
|
||
|
|
||
|
#undef CASE
|
||
|
}
|
||
|
|
||
|
static int config_params(AVFilterContext *avctx)
|
||
|
{
|
||
|
BlendVulkanContext *s = avctx->priv;
|
||
|
|
||
|
for (int plane = 0; plane < FF_ARRAY_ELEMS(s->params); plane++) {
|
||
|
FilterParamsVulkan *param = &s->params[plane];
|
||
|
|
||
|
if (s->all_mode >= 0)
|
||
|
param->mode = s->all_mode;
|
||
|
if (s->all_opacity < 1)
|
||
|
param->opacity = s->all_opacity;
|
||
|
|
||
|
init_blend_func(param);
|
||
|
if (!param->blend) {
|
||
|
av_log(avctx, AV_LOG_ERROR,
|
||
|
"Currently the blend mode specified is not supported yet.\n");
|
||
|
return AVERROR(EINVAL);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
|
||
|
char *res, int res_len, int flags)
|
||
|
{
|
||
|
int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
|
||
|
if (ret < 0)
|
||
|
return ret;
|
||
|
|
||
|
return config_params(ctx);
|
||
|
}
|
||
|
|
||
|
static av_cold int init_filter(AVFilterContext *avctx)
|
||
|
{
|
||
|
int err = 0;
|
||
|
FFVkSampler *sampler;
|
||
|
FFVkSPIRVShader *shd;
|
||
|
BlendVulkanContext *s = avctx->priv;
|
||
|
FFVulkanContext *vkctx = &s->vkctx;
|
||
|
const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
|
||
|
|
||
|
ff_vk_qf_init(vkctx, &s->qf, VK_QUEUE_COMPUTE_BIT, 0);
|
||
|
|
||
|
sampler = ff_vk_init_sampler(vkctx, 1, VK_FILTER_LINEAR);
|
||
|
if (!sampler)
|
||
|
return AVERROR_EXTERNAL;
|
||
|
|
||
|
s->pl = ff_vk_create_pipeline(vkctx, &s->qf);
|
||
|
if (!s->pl)
|
||
|
return AVERROR(ENOMEM);
|
||
|
|
||
|
{
|
||
|
FFVulkanDescriptorSetBinding image_descs[] = {
|
||
|
{
|
||
|
.name = "top_images",
|
||
|
.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
||
|
.dimensions = 2,
|
||
|
.elems = planes,
|
||
|
.stages = VK_SHADER_STAGE_COMPUTE_BIT,
|
||
|
.updater = s->top_images,
|
||
|
.sampler = sampler,
|
||
|
},
|
||
|
{
|
||
|
.name = "bottom_images",
|
||
|
.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
||
|
.dimensions = 2,
|
||
|
.elems = planes,
|
||
|
.stages = VK_SHADER_STAGE_COMPUTE_BIT,
|
||
|
.updater = s->bottom_images,
|
||
|
.sampler = sampler,
|
||
|
},
|
||
|
{
|
||
|
.name = "output_images",
|
||
|
.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,
|
||
|
},
|
||
|
};
|
||
|
|
||
|
shd = ff_vk_init_shader(s->pl, "blend_compute", image_descs[0].stages);
|
||
|
if (!shd)
|
||
|
return AVERROR(ENOMEM);
|
||
|
|
||
|
ff_vk_set_compute_shader_sizes(shd, (int [3]){ CGS, CGS, 1 });
|
||
|
RET(ff_vk_add_descriptor_set(vkctx, s->pl, shd, image_descs, FF_ARRAY_ELEMS(image_descs), 0));
|
||
|
|
||
|
for (int i = 0, j = 0; i < planes; i++) {
|
||
|
for (j = 0; j < i; j++)
|
||
|
if (s->params[i].blend_func == s->params[j].blend_func)
|
||
|
break;
|
||
|
/* note: the bracket is needed, for GLSLD is a macro with multiple statements. */
|
||
|
if (j == i) {
|
||
|
GLSLD(s->params[i].blend_func);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
GLSLC(0, void main() );
|
||
|
GLSLC(0, { );
|
||
|
GLSLC(1, ivec2 size; );
|
||
|
GLSLC(1, const ivec2 pos = ivec2(gl_GlobalInvocationID.xy); );
|
||
|
for (int i = 0; i < planes; i++) {
|
||
|
GLSLC(0, );
|
||
|
GLSLF(1, size = imageSize(output_images[%i]); ,i);
|
||
|
GLSLC(1, if (IS_WITHIN(pos, size)) { );
|
||
|
GLSLF(2, const vec4 top = texture(top_images[%i], pos); ,i);
|
||
|
GLSLF(2, const vec4 bottom = texture(bottom_images[%i], pos); ,i);
|
||
|
GLSLF(2, const float opacity = %f; ,s->params[i].opacity);
|
||
|
GLSLF(2, vec4 dst = %s(top, bottom, opacity); ,s->params[i].blend);
|
||
|
GLSLC(0, );
|
||
|
GLSLF(2, imageStore(output_images[%i], pos, dst); ,i);
|
||
|
GLSLC(1, } );
|
||
|
}
|
||
|
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));
|
||
|
}
|
||
|
|
||
|
RET(ff_vk_create_exec_ctx(vkctx, &s->exec, &s->qf));
|
||
|
|
||
|
s->initialized = 1;
|
||
|
|
||
|
fail:
|
||
|
return err;
|
||
|
}
|
||
|
|
||
|
static int process_frames(AVFilterContext *avctx, AVFrame *out_frame, AVFrame *top_frame, AVFrame *bottom_frame)
|
||
|
{
|
||
|
int err = 0;
|
||
|
VkCommandBuffer cmd_buf;
|
||
|
BlendVulkanContext *s = avctx->priv;
|
||
|
FFVulkanContext *vkctx = &s->vkctx;
|
||
|
FFVulkanFunctions *vk = &s->vkctx.vkfn;
|
||
|
const int planes = av_pix_fmt_count_planes(s->vkctx.output_format);
|
||
|
|
||
|
AVVkFrame *out = (AVVkFrame *)out_frame->data[0];
|
||
|
AVVkFrame *top = (AVVkFrame *)top_frame->data[0];
|
||
|
AVVkFrame *bottom = (AVVkFrame *)bottom_frame->data[0];
|
||
|
|
||
|
AVHWFramesContext *top_fc = (AVHWFramesContext*)top_frame->hw_frames_ctx->data;
|
||
|
AVHWFramesContext *bottom_fc = (AVHWFramesContext*)bottom_frame->hw_frames_ctx->data;
|
||
|
|
||
|
const VkFormat *top_formats = av_vkfmt_from_pixfmt(top_fc->sw_format);
|
||
|
const VkFormat *bottom_formats = av_vkfmt_from_pixfmt(bottom_fc->sw_format);
|
||
|
const VkFormat *output_formats = av_vkfmt_from_pixfmt(s->vkctx.output_format);
|
||
|
|
||
|
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->top_images[i].imageView, top->img[i],
|
||
|
top_formats[i],
|
||
|
ff_comp_identity_map));
|
||
|
|
||
|
RET(ff_vk_create_imageview(vkctx, s->exec,
|
||
|
&s->bottom_images[i].imageView, bottom->img[i],
|
||
|
bottom_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->top_images[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
|
||
|
s->bottom_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 barriers[] = {
|
||
|
{
|
||
|
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
|
||
|
.srcAccessMask = 0,
|
||
|
.dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
|
||
|
.oldLayout = top->layout[i],
|
||
|
.newLayout = s->top_images[i].imageLayout,
|
||
|
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
|
||
|
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
|
||
|
.image = top->img[i],
|
||
|
.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
|
||
|
.subresourceRange.levelCount = 1,
|
||
|
.subresourceRange.layerCount = 1,
|
||
|
},
|
||
|
{
|
||
|
.sType = VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER,
|
||
|
.srcAccessMask = 0,
|
||
|
.dstAccessMask = VK_ACCESS_SHADER_READ_BIT,
|
||
|
.oldLayout = bottom->layout[i],
|
||
|
.newLayout = s->bottom_images[i].imageLayout,
|
||
|
.srcQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
|
||
|
.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
|
||
|
.image = bottom->img[i],
|
||
|
.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
|
||
|
.subresourceRange.levelCount = 1,
|
||
|
.subresourceRange.layerCount = 1,
|
||
|
},
|
||
|
{
|
||
|
.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,
|
||
|
},
|
||
|
};
|
||
|
|
||
|
vk->CmdPipelineBarrier(cmd_buf, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
|
||
|
VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0,
|
||
|
0, NULL, 0, NULL, FF_ARRAY_ELEMS(barriers), barriers);
|
||
|
|
||
|
top->layout[i] = barriers[0].newLayout;
|
||
|
top->access[i] = barriers[0].dstAccessMask;
|
||
|
|
||
|
bottom->layout[i] = barriers[1].newLayout;
|
||
|
bottom->access[i] = barriers[1].dstAccessMask;
|
||
|
|
||
|
out->layout[i] = barriers[2].newLayout;
|
||
|
out->access[i] = barriers[2].dstAccessMask;
|
||
|
}
|
||
|
|
||
|
ff_vk_bind_pipeline_exec(vkctx, s->exec, s->pl);
|
||
|
vk->CmdDispatch(cmd_buf, FFALIGN(s->vkctx.output_width, CGS) / CGS,
|
||
|
FFALIGN(s->vkctx.output_height, CGS) / CGS, 1);
|
||
|
|
||
|
ff_vk_add_exec_dep(vkctx, s->exec, top_frame, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
|
||
|
ff_vk_add_exec_dep(vkctx, s->exec, bottom_frame, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT);
|
||
|
ff_vk_add_exec_dep(vkctx, s->exec, out_frame, 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 0;
|
||
|
|
||
|
fail:
|
||
|
ff_vk_discard_exec_deps(s->exec);
|
||
|
return err;
|
||
|
}
|
||
|
|
||
|
static int blend_frame(FFFrameSync *fs)
|
||
|
{
|
||
|
int err;
|
||
|
AVFilterContext *avctx = fs->parent;
|
||
|
BlendVulkanContext *s = avctx->priv;
|
||
|
AVFilterLink *outlink = avctx->outputs[0];
|
||
|
AVFrame *top, *bottom, *out;
|
||
|
|
||
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
||
|
if (!out) {
|
||
|
err = AVERROR(ENOMEM);
|
||
|
goto fail;
|
||
|
}
|
||
|
|
||
|
RET(ff_framesync_get_frame(fs, IN_TOP, &top, 0));
|
||
|
RET(ff_framesync_get_frame(fs, IN_BOTTOM, &bottom, 0));
|
||
|
|
||
|
RET(av_frame_copy_props(out, top));
|
||
|
|
||
|
if (!s->initialized) {
|
||
|
AVHWFramesContext *top_fc = (AVHWFramesContext*)top->hw_frames_ctx->data;
|
||
|
AVHWFramesContext *bottom_fc = (AVHWFramesContext*)bottom->hw_frames_ctx->data;
|
||
|
if (top_fc->sw_format != bottom_fc->sw_format) {
|
||
|
av_log(avctx, AV_LOG_ERROR,
|
||
|
"Currently the sw format of the bottom video need to match the top!\n");
|
||
|
return AVERROR(EINVAL);
|
||
|
}
|
||
|
RET(init_filter(avctx));
|
||
|
}
|
||
|
|
||
|
RET(process_frames(avctx, out, top, bottom));
|
||
|
|
||
|
return ff_filter_frame(outlink, out);
|
||
|
|
||
|
fail:
|
||
|
av_frame_free(&out);
|
||
|
return err;
|
||
|
}
|
||
|
|
||
|
static av_cold int init(AVFilterContext *avctx)
|
||
|
{
|
||
|
BlendVulkanContext *s = avctx->priv;
|
||
|
|
||
|
s->fs.on_event = blend_frame;
|
||
|
|
||
|
return ff_vk_filter_init(avctx);
|
||
|
}
|
||
|
|
||
|
static av_cold void uninit(AVFilterContext *avctx)
|
||
|
{
|
||
|
BlendVulkanContext *s = avctx->priv;
|
||
|
|
||
|
ff_framesync_uninit(&s->fs);
|
||
|
|
||
|
ff_vk_uninit(&s->vkctx);
|
||
|
|
||
|
s->initialized = 0;
|
||
|
}
|
||
|
|
||
|
static int config_props_output(AVFilterLink *outlink)
|
||
|
{
|
||
|
int err;
|
||
|
AVFilterContext *avctx = outlink->src;
|
||
|
BlendVulkanContext *s = avctx->priv;
|
||
|
AVFilterLink *toplink = avctx->inputs[IN_TOP];
|
||
|
AVFilterLink *bottomlink = avctx->inputs[IN_BOTTOM];
|
||
|
|
||
|
if (toplink->w != bottomlink->w || toplink->h != bottomlink->h) {
|
||
|
av_log(avctx, AV_LOG_ERROR, "First input link %s parameters "
|
||
|
"(size %dx%d) do not match the corresponding "
|
||
|
"second input link %s parameters (size %dx%d)\n",
|
||
|
avctx->input_pads[IN_TOP].name, toplink->w, toplink->h,
|
||
|
avctx->input_pads[IN_BOTTOM].name, bottomlink->w, bottomlink->h);
|
||
|
return AVERROR(EINVAL);
|
||
|
}
|
||
|
|
||
|
outlink->sample_aspect_ratio = toplink->sample_aspect_ratio;
|
||
|
outlink->frame_rate = toplink->frame_rate;
|
||
|
|
||
|
RET(ff_vk_filter_config_output(outlink));
|
||
|
|
||
|
RET(ff_framesync_init_dualinput(&s->fs, avctx));
|
||
|
|
||
|
RET(ff_framesync_configure(&s->fs));
|
||
|
outlink->time_base = s->fs.time_base;
|
||
|
|
||
|
RET(config_params(avctx));
|
||
|
|
||
|
fail:
|
||
|
return err;
|
||
|
}
|
||
|
|
||
|
static int activate(AVFilterContext *avctx)
|
||
|
{
|
||
|
BlendVulkanContext *s = avctx->priv;
|
||
|
return ff_framesync_activate(&s->fs);
|
||
|
}
|
||
|
|
||
|
#define OFFSET(x) offsetof(BlendVulkanContext, x)
|
||
|
#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
|
||
|
|
||
|
static const AVOption blend_vulkan_options[] = {
|
||
|
{ "c0_mode", "set component #0 blend mode", OFFSET(params[0].mode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, BLEND_NB - 1, FLAGS, "mode" },
|
||
|
{ "c1_mode", "set component #1 blend mode", OFFSET(params[1].mode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, BLEND_NB - 1, FLAGS, "mode" },
|
||
|
{ "c2_mode", "set component #2 blend mode", OFFSET(params[2].mode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, BLEND_NB - 1, FLAGS, "mode" },
|
||
|
{ "c3_mode", "set component #3 blend mode", OFFSET(params[3].mode), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, BLEND_NB - 1, FLAGS, "mode" },
|
||
|
{ "all_mode", "set blend mode for all components", OFFSET(all_mode), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, BLEND_NB - 1, FLAGS, "mode" },
|
||
|
{ "normal", "", 0, AV_OPT_TYPE_CONST, { .i64 = BLEND_NORMAL }, 0, 0, FLAGS, "mode" },
|
||
|
|
||
|
{ "c0_opacity", "set color component #0 opacity", OFFSET(params[0].opacity), AV_OPT_TYPE_DOUBLE, { .dbl = 1 }, 0, 1, FLAGS },
|
||
|
{ "c1_opacity", "set color component #1 opacity", OFFSET(params[1].opacity), AV_OPT_TYPE_DOUBLE, { .dbl = 1 }, 0, 1, FLAGS },
|
||
|
{ "c2_opacity", "set color component #2 opacity", OFFSET(params[2].opacity), AV_OPT_TYPE_DOUBLE, { .dbl = 1 }, 0, 1, FLAGS },
|
||
|
{ "c3_opacity", "set color component #3 opacity", OFFSET(params[3].opacity), AV_OPT_TYPE_DOUBLE, { .dbl = 1 }, 0, 1, FLAGS },
|
||
|
{ "all_opacity", "set opacity for all color components", OFFSET(all_opacity), AV_OPT_TYPE_DOUBLE, { .dbl = 1 }, 0, 1, FLAGS },
|
||
|
|
||
|
{ NULL }
|
||
|
};
|
||
|
|
||
|
AVFILTER_DEFINE_CLASS(blend_vulkan);
|
||
|
|
||
|
static const AVFilterPad blend_vulkan_inputs[] = {
|
||
|
{
|
||
|
.name = "top",
|
||
|
.type = AVMEDIA_TYPE_VIDEO,
|
||
|
.config_props = &ff_vk_filter_config_input,
|
||
|
},
|
||
|
{
|
||
|
.name = "bottom",
|
||
|
.type = AVMEDIA_TYPE_VIDEO,
|
||
|
.config_props = &ff_vk_filter_config_input,
|
||
|
},
|
||
|
};
|
||
|
|
||
|
|
||
|
static const AVFilterPad blend_vulkan_outputs[] = {
|
||
|
{
|
||
|
.name = "default",
|
||
|
.type = AVMEDIA_TYPE_VIDEO,
|
||
|
.config_props = &config_props_output,
|
||
|
}
|
||
|
};
|
||
|
|
||
|
const AVFilter ff_vf_blend_vulkan = {
|
||
|
.name = "blend_vulkan",
|
||
|
.description = NULL_IF_CONFIG_SMALL("Blend two video frames in Vulkan"),
|
||
|
.priv_size = sizeof(BlendVulkanContext),
|
||
|
.init = &init,
|
||
|
.uninit = &uninit,
|
||
|
.activate = &activate,
|
||
|
FILTER_INPUTS(blend_vulkan_inputs),
|
||
|
FILTER_OUTPUTS(blend_vulkan_outputs),
|
||
|
FILTER_SINGLE_PIXFMT(AV_PIX_FMT_VULKAN),
|
||
|
.priv_class = &blend_vulkan_class,
|
||
|
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
|
||
|
.process_command = &process_command,
|
||
|
};
|