diff --git a/configure b/configure index e8c605bb97..c4de469664 100755 --- a/configure +++ b/configure @@ -3283,6 +3283,7 @@ tinterlace_filter_deps="gpl" tinterlace_merge_test_deps="tinterlace_filter" tinterlace_pad_test_deps="tinterlace_filter" tonemap_filter_deps="const_nan" +unsharp_opencl_filter_deps="opencl" uspp_filter_deps="gpl avcodec" unsharp_filter_suggest="opencl" vaguedenoiser_filter_deps="gpl" diff --git a/libavfilter/Makefile b/libavfilter/Makefile index 77cc3acfcd..30474ea77b 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -331,6 +331,8 @@ OBJS-$(CONFIG_TRANSPOSE_FILTER) += vf_transpose.o OBJS-$(CONFIG_TRIM_FILTER) += trim.o OBJS-$(CONFIG_UNPREMULTIPLY_FILTER) += vf_premultiply.o framesync.o OBJS-$(CONFIG_UNSHARP_FILTER) += vf_unsharp.o +OBJS-$(CONFIG_UNSHARP_OPENCL_FILTER) += vf_unsharp_opencl.o opencl.o \ + opencl/unsharp.o OBJS-$(CONFIG_USPP_FILTER) += vf_uspp.o OBJS-$(CONFIG_VAGUEDENOISER_FILTER) += vf_vaguedenoiser.o OBJS-$(CONFIG_VECTORSCOPE_FILTER) += vf_vectorscope.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 0db440d128..beacfce612 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -339,6 +339,7 @@ static void register_all(void) REGISTER_FILTER(TRIM, trim, vf); REGISTER_FILTER(UNPREMULTIPLY, unpremultiply, vf); REGISTER_FILTER(UNSHARP, unsharp, vf); + REGISTER_FILTER(UNSHARP_OPENCL, unsharp_opencl, vf); REGISTER_FILTER(USPP, uspp, vf); REGISTER_FILTER(VAGUEDENOISER, vaguedenoiser, vf); REGISTER_FILTER(VECTORSCOPE, vectorscope, vf); diff --git a/libavfilter/opencl/unsharp.cl b/libavfilter/opencl/unsharp.cl new file mode 100644 index 0000000000..e629834e50 --- /dev/null +++ b/libavfilter/opencl/unsharp.cl @@ -0,0 +1,99 @@ +/* + * 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 + */ + +__kernel void unsharp_global(__write_only image2d_t dst, + __read_only image2d_t src, + int size_x, + int size_y, + float amount, + __constant float *coef_matrix) +{ + const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE | + CLK_FILTER_NEAREST); + int2 loc = (int2)(get_global_id(0), get_global_id(1)); + int2 centre = (int2)(size_x / 2, size_y / 2); + + float4 val = read_imagef(src, sampler, loc); + float4 sum = 0.0f; + int x, y; + + for (y = 0; y < size_y; y++) { + for (x = 0; x < size_x; x++) { + int2 pos = loc + (int2)(x, y) - centre; + sum += coef_matrix[y * size_x + x] * + read_imagef(src, sampler, pos); + } + } + + write_imagef(dst, loc, val + (val - sum) * amount); +} + +__kernel void unsharp_local(__write_only image2d_t dst, + __read_only image2d_t src, + int size_x, + int size_y, + float amount, + __constant float *coef_x, + __constant float *coef_y) +{ + const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE | + CLK_ADDRESS_CLAMP_TO_EDGE | + CLK_FILTER_NEAREST); + int2 block = (int2)(get_group_id(0), get_group_id(1)) * 16; + int2 pos = (int2)(get_local_id(0), get_local_id(1)); + + __local float4 tmp[32][32]; + + int rad_x = size_x / 2; + int rad_y = size_y / 2; + int x, y; + + for (y = 0; y <= 1; y++) { + for (x = 0; x <= 1; x++) { + tmp[pos.y + 16 * y][pos.x + 16 * x] = + read_imagef(src, sampler, block + pos + (int2)(16 * x - 8, 16 * y - 8)); + } + } + + barrier(CLK_LOCAL_MEM_FENCE); + + float4 val = tmp[pos.y + 8][pos.x + 8]; + + float4 horiz[2]; + for (y = 0; y <= 1; y++) { + horiz[y] = 0.0f; + for (x = 0; x < size_x; x++) + horiz[y] += coef_x[x] * tmp[pos.y + y * 16][pos.x + 8 + x - rad_x]; + } + + barrier(CLK_LOCAL_MEM_FENCE); + + for (y = 0; y <= 1; y++) { + tmp[pos.y + y * 16][pos.x + 8] = horiz[y]; + } + + barrier(CLK_LOCAL_MEM_FENCE); + + float4 sum = 0.0f; + for (y = 0; y < size_y; y++) + sum += coef_y[y] * tmp[pos.y + 8 + y - rad_y][pos.x + 8]; + + if (block.x + pos.x < get_image_width(dst) && + block.y + pos.y < get_image_height(dst)) + write_imagef(dst, block + pos, val + (val - sum) * amount); +} diff --git a/libavfilter/opencl_source.h b/libavfilter/opencl_source.h index e7af58bcfa..23cdfc6ac9 100644 --- a/libavfilter/opencl_source.h +++ b/libavfilter/opencl_source.h @@ -20,5 +20,6 @@ #define AVFILTER_OPENCL_SOURCE_H extern const char *ff_opencl_source_overlay; +extern const char *ff_opencl_source_unsharp; #endif /* AVFILTER_OPENCL_SOURCE_H */ diff --git a/libavfilter/version.h b/libavfilter/version.h index 25087957eb..b449fd821d 100644 --- a/libavfilter/version.h +++ b/libavfilter/version.h @@ -31,7 +31,7 @@ #define LIBAVFILTER_VERSION_MAJOR 7 #define LIBAVFILTER_VERSION_MINOR 2 -#define LIBAVFILTER_VERSION_MICRO 101 +#define LIBAVFILTER_VERSION_MICRO 102 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ LIBAVFILTER_VERSION_MINOR, \ diff --git a/libavfilter/vf_unsharp_opencl.c b/libavfilter/vf_unsharp_opencl.c new file mode 100644 index 0000000000..c2ebf70ad9 --- /dev/null +++ b/libavfilter/vf_unsharp_opencl.c @@ -0,0 +1,482 @@ +/* + * 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/common.h" +#include "libavutil/imgutils.h" +#include "libavutil/mem.h" +#include "libavutil/opt.h" +#include "libavutil/pixdesc.h" + +#include "avfilter.h" +#include "internal.h" +#include "opencl.h" +#include "opencl_source.h" +#include "video.h" + +#define MAX_DIAMETER 23 + +typedef struct UnsharpOpenCLContext { + OpenCLFilterContext ocf; + + int initialised; + cl_kernel kernel; + cl_command_queue command_queue; + + float luma_size_x; + float luma_size_y; + float luma_amount; + float chroma_size_x; + float chroma_size_y; + float chroma_amount; + + int global; + + int nb_planes; + struct { + float blur_x[MAX_DIAMETER]; + float blur_y[MAX_DIAMETER]; + + cl_mem matrix; + cl_mem coef_x; + cl_mem coef_y; + + cl_int size_x; + cl_int size_y; + cl_float amount; + cl_float threshold; + } plane[4]; +} UnsharpOpenCLContext; + + +static int unsharp_opencl_init(AVFilterContext *avctx) +{ + UnsharpOpenCLContext *ctx = avctx->priv; + cl_int cle; + int err; + + err = ff_opencl_filter_load_program(avctx, &ff_opencl_source_unsharp, 1); + if (err < 0) + goto fail; + + ctx->command_queue = clCreateCommandQueue(ctx->ocf.hwctx->context, + ctx->ocf.hwctx->device_id, + 0, &cle); + if (!ctx->command_queue) { + av_log(avctx, AV_LOG_ERROR, "Failed to create OpenCL " + "command queue: %d.\n", cle); + err = AVERROR(EIO); + goto fail; + } + + // Use global kernel if mask size will be too big for the local store.. + ctx->global = (ctx->luma_size_x > 17.0f || + ctx->luma_size_y > 17.0f || + ctx->chroma_size_x > 17.0f || + ctx->chroma_size_y > 17.0f); + + ctx->kernel = clCreateKernel(ctx->ocf.program, + ctx->global ? "unsharp_global" + : "unsharp_local", &cle); + if (!ctx->kernel) { + av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle); + err = AVERROR(EIO); + goto fail; + } + + ctx->initialised = 1; + return 0; + +fail: + if (ctx->command_queue) + clReleaseCommandQueue(ctx->command_queue); + if (ctx->kernel) + clReleaseKernel(ctx->kernel); + return err; +} + +static int unsharp_opencl_make_filter_params(AVFilterContext *avctx) +{ + UnsharpOpenCLContext *ctx = avctx->priv; + const AVPixFmtDescriptor *desc; + float *matrix; + double val, sum; + cl_int cle; + cl_mem buffer; + size_t matrix_bytes; + float diam_x, diam_y, amount; + int err, p, x, y, size_x, size_y; + + desc = av_pix_fmt_desc_get(ctx->ocf.output_format); + + ctx->nb_planes = 0; + for (p = 0; p < desc->nb_components; p++) + ctx->nb_planes = FFMAX(ctx->nb_planes, desc->comp[p].plane + 1); + + for (p = 0; p < ctx->nb_planes; p++) { + if (p == 0 || (desc->flags & AV_PIX_FMT_FLAG_RGB)) { + diam_x = ctx->luma_size_x; + diam_y = ctx->luma_size_y; + amount = ctx->luma_amount; + } else { + diam_x = ctx->chroma_size_x; + diam_y = ctx->chroma_size_y; + amount = ctx->chroma_amount; + } + size_x = (int)ceil(diam_x) | 1; + size_y = (int)ceil(diam_y) | 1; + matrix_bytes = size_x * size_y * sizeof(float); + + matrix = av_malloc(matrix_bytes); + if (!matrix) { + err = AVERROR(ENOMEM); + goto fail; + } + + sum = 0.0; + for (x = 0; x < size_x; x++) { + double dx = (double)(x - size_x / 2) / diam_x; + sum += ctx->plane[p].blur_x[x] = exp(-16.0 * (dx * dx)); + } + for (x = 0; x < size_x; x++) + ctx->plane[p].blur_x[x] /= sum; + + sum = 0.0; + for (y = 0; y < size_y; y++) { + double dy = (double)(y - size_y / 2) / diam_y; + sum += ctx->plane[p].blur_y[y] = exp(-16.0 * (dy * dy)); + } + for (y = 0; y < size_y; y++) + ctx->plane[p].blur_y[y] /= sum; + + for (y = 0; y < size_y; y++) { + for (x = 0; x < size_x; x++) { + val = ctx->plane[p].blur_x[x] * ctx->plane[p].blur_y[y]; + matrix[y * size_x + x] = val; + } + } + + if (ctx->global) { + buffer = clCreateBuffer(ctx->ocf.hwctx->context, + CL_MEM_READ_ONLY | + CL_MEM_COPY_HOST_PTR | + CL_MEM_HOST_NO_ACCESS, + matrix_bytes, matrix, &cle); + if (!buffer) { + av_log(avctx, AV_LOG_ERROR, "Failed to create matrix buffer: " + "%d.\n", cle); + err = AVERROR(EIO); + goto fail; + } + ctx->plane[p].matrix = buffer; + } else { + buffer = clCreateBuffer(ctx->ocf.hwctx->context, + CL_MEM_READ_ONLY | + CL_MEM_COPY_HOST_PTR | + CL_MEM_HOST_NO_ACCESS, + sizeof(ctx->plane[p].blur_x), + ctx->plane[p].blur_x, &cle); + if (!buffer) { + av_log(avctx, AV_LOG_ERROR, "Failed to create x-coef buffer: " + "%d.\n", cle); + err = AVERROR(EIO); + goto fail; + } + ctx->plane[p].coef_x = buffer; + + buffer = clCreateBuffer(ctx->ocf.hwctx->context, + CL_MEM_READ_ONLY | + CL_MEM_COPY_HOST_PTR | + CL_MEM_HOST_NO_ACCESS, + sizeof(ctx->plane[p].blur_y), + ctx->plane[p].blur_y, &cle); + if (!buffer) { + av_log(avctx, AV_LOG_ERROR, "Failed to create y-coef buffer: " + "%d.\n", cle); + err = AVERROR(EIO); + goto fail; + } + ctx->plane[p].coef_y = buffer; + } + + av_freep(&matrix); + + ctx->plane[p].size_x = size_x; + ctx->plane[p].size_y = size_y; + ctx->plane[p].amount = amount; + } + + err = 0; +fail: + av_freep(&matrix); + return err; +} + +static int unsharp_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input) +{ + AVFilterContext *avctx = inlink->dst; + AVFilterLink *outlink = avctx->outputs[0]; + UnsharpOpenCLContext *ctx = avctx->priv; + AVFrame *output = NULL; + cl_int cle; + size_t global_work[2]; + size_t local_work[2]; + cl_mem src, dst; + int err, p; + + av_log(ctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n", + av_get_pix_fmt_name(input->format), + input->width, input->height, input->pts); + + if (!input->hw_frames_ctx) + return AVERROR(EINVAL); + + if (!ctx->initialised) { + err = unsharp_opencl_init(avctx); + if (err < 0) + goto fail; + + err = unsharp_opencl_make_filter_params(avctx); + if (err < 0) + goto fail; + } + + output = ff_get_video_buffer(outlink, outlink->w, outlink->h); + if (!output) { + err = AVERROR(ENOMEM); + goto fail; + } + + for (p = 0; p < FF_ARRAY_ELEMS(output->data); p++) { + src = (cl_mem) input->data[p]; + dst = (cl_mem)output->data[p]; + + if (!dst) + break; + + cle = clSetKernelArg(ctx->kernel, 0, sizeof(cl_mem), &dst); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "destination image argument: %d.\n", cle); + goto fail; + } + cle = clSetKernelArg(ctx->kernel, 1, sizeof(cl_mem), &src); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "source image argument: %d.\n", cle); + goto fail; + } + cle = clSetKernelArg(ctx->kernel, 2, sizeof(cl_int), &ctx->plane[p].size_x); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "matrix size argument: %d.\n", cle); + goto fail; + } + cle = clSetKernelArg(ctx->kernel, 3, sizeof(cl_int), &ctx->plane[p].size_y); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "matrix size argument: %d.\n", cle); + goto fail; + } + cle = clSetKernelArg(ctx->kernel, 4, sizeof(cl_float), &ctx->plane[p].amount); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "amount argument: %d.\n", cle); + goto fail; + } + if (ctx->global) { + cle = clSetKernelArg(ctx->kernel, 5, sizeof(cl_mem), &ctx->plane[p].matrix); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "matrix argument: %d.\n", cle); + goto fail; + } + } else { + cle = clSetKernelArg(ctx->kernel, 5, sizeof(cl_mem), &ctx->plane[p].coef_x); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "x-coef argument: %d.\n", cle); + goto fail; + } + cle = clSetKernelArg(ctx->kernel, 6, sizeof(cl_mem), &ctx->plane[p].coef_y); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to set kernel " + "y-coef argument: %d.\n", cle); + goto fail; + } + } + + if (ctx->global) { + global_work[0] = output->width; + global_work[1] = output->height; + } else { + global_work[0] = FFALIGN(output->width, 16); + global_work[1] = FFALIGN(output->height, 16); + local_work[0] = 16; + local_work[1] = 16; + } + + av_log(avctx, AV_LOG_DEBUG, "Run kernel on plane %d " + "(%zux%zu).\n", p, global_work[0], global_work[1]); + + cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel, 2, NULL, + global_work, ctx->global ? NULL : local_work, + 0, NULL, NULL); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to enqueue kernel: %d.\n", + cle); + err = AVERROR(EIO); + goto fail; + } + } + + cle = clFinish(ctx->command_queue); + if (cle != CL_SUCCESS) { + av_log(avctx, AV_LOG_ERROR, "Failed to finish command queue: %d.\n", + cle); + err = AVERROR(EIO); + goto fail; + } + + err = av_frame_copy_props(output, input); + if (err < 0) + goto fail; + + av_frame_free(&input); + + av_log(ctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n", + av_get_pix_fmt_name(output->format), + output->width, output->height, output->pts); + + return ff_filter_frame(outlink, output); + +fail: + clFinish(ctx->command_queue); + av_frame_free(&input); + av_frame_free(&output); + return err; +} + +static av_cold void unsharp_opencl_uninit(AVFilterContext *avctx) +{ + UnsharpOpenCLContext *ctx = avctx->priv; + cl_int cle; + int i; + + for (i = 0; i < ctx->nb_planes; i++) { + if (ctx->plane[i].matrix) + clReleaseMemObject(ctx->plane[i].matrix); + if (ctx->plane[i].coef_x) + clReleaseMemObject(ctx->plane[i].coef_x); + if (ctx->plane[i].coef_y) + clReleaseMemObject(ctx->plane[i].coef_y); + } + + if (ctx->kernel) { + cle = clReleaseKernel(ctx->kernel); + if (cle != CL_SUCCESS) + av_log(avctx, AV_LOG_ERROR, "Failed to release " + "kernel: %d.\n", cle); + } + + if (ctx->command_queue) { + cle = clReleaseCommandQueue(ctx->command_queue); + if (cle != CL_SUCCESS) + av_log(avctx, AV_LOG_ERROR, "Failed to release " + "command queue: %d.\n", cle); + } + + ff_opencl_filter_uninit(avctx); +} + +#define OFFSET(x) offsetof(UnsharpOpenCLContext, x) +#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) +static const AVOption unsharp_opencl_options[] = { + { "luma_msize_x", "Set luma mask horizontal diameter (pixels)", + OFFSET(luma_size_x), AV_OPT_TYPE_FLOAT, + { .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, + { "lx", "Set luma mask horizontal diameter (pixels)", + OFFSET(luma_size_x), AV_OPT_TYPE_FLOAT, + { .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, + { "luma_msize_y", "Set luma mask vertical diameter (pixels)", + OFFSET(luma_size_y), AV_OPT_TYPE_FLOAT, + { .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, + { "ly", "Set luma mask vertical diameter (pixels)", + OFFSET(luma_size_y), AV_OPT_TYPE_FLOAT, + { .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, + { "luma_amount", "Set luma amount (multiplier)", + OFFSET(luma_amount), AV_OPT_TYPE_FLOAT, + { .dbl = 1.0 }, -10, 10, FLAGS }, + { "la", "Set luma amount (multiplier)", + OFFSET(luma_amount), AV_OPT_TYPE_FLOAT, + { .dbl = 1.0 }, -10, 10, FLAGS }, + + { "chroma_msize_x", "Set chroma mask horizontal diameter (pixels after subsampling)", + OFFSET(chroma_size_x), AV_OPT_TYPE_FLOAT, + { .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, + { "cx", "Set chroma mask horizontal diameter (pixels after subsampling)", + OFFSET(chroma_size_x), AV_OPT_TYPE_FLOAT, + { .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, + { "chroma_msize_y", "Set chroma mask vertical diameter (pixels after subsampling)", + OFFSET(chroma_size_y), AV_OPT_TYPE_FLOAT, + { .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, + { "cy", "Set chroma mask vertical diameter (pixels after subsampling)", + OFFSET(chroma_size_y), AV_OPT_TYPE_FLOAT, + { .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, + { "chroma_amount", "Set chroma amount (multiplier)", + OFFSET(chroma_amount), AV_OPT_TYPE_FLOAT, + { .dbl = 0.0 }, -10, 10, FLAGS }, + { "ca", "Set chroma amount (multiplier)", + OFFSET(chroma_amount), AV_OPT_TYPE_FLOAT, + { .dbl = 0.0 }, -10, 10, FLAGS }, + + { NULL } +}; + +AVFILTER_DEFINE_CLASS(unsharp_opencl); + +static const AVFilterPad unsharp_opencl_inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = &unsharp_opencl_filter_frame, + .config_props = &ff_opencl_filter_config_input, + }, + { NULL } +}; + +static const AVFilterPad unsharp_opencl_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .config_props = &ff_opencl_filter_config_output, + }, + { NULL } +}; + +AVFilter ff_vf_unsharp_opencl = { + .name = "unsharp_opencl", + .description = NULL_IF_CONFIG_SMALL("Apply unsharp mask to input video"), + .priv_size = sizeof(UnsharpOpenCLContext), + .priv_class = &unsharp_opencl_class, + .init = &ff_opencl_filter_init, + .uninit = &unsharp_opencl_uninit, + .query_formats = &ff_opencl_filter_query_formats, + .inputs = unsharp_opencl_inputs, + .outputs = unsharp_opencl_outputs, + .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, +};