@@ -2877,6 +2877,7 @@ v4l2_m2m_deps_any="linux_videodev2_h"
hwupload_cuda_filter_deps="ffnvcodec"
scale_npp_filter_deps="ffnvcodec libnpp"
+scale_opencl_filter_deps="opencl"
scale_cuda_filter_deps="cuda_sdk"
thumbnail_cuda_filter_deps="cuda_sdk"
@@ -302,6 +302,7 @@ OBJS-$(CONFIG_SAB_FILTER) += vf_sab.o
OBJS-$(CONFIG_SCALE_FILTER) += vf_scale.o scale.o
OBJS-$(CONFIG_SCALE_CUDA_FILTER) += vf_scale_cuda.o vf_scale_cuda.ptx.o
OBJS-$(CONFIG_SCALE_NPP_FILTER) += vf_scale_npp.o scale.o
+OBJS-$(CONFIG_SCALE_OPENCL_FILTER) += vf_scale_opencl.o opencl.o opencl/scale.o
OBJS-$(CONFIG_SCALE_QSV_FILTER) += vf_scale_qsv.o
OBJS-$(CONFIG_SCALE_VAAPI_FILTER) += vf_scale_vaapi.o scale.o vaapi_vpp.o
OBJS-$(CONFIG_SCALE2REF_FILTER) += vf_scale.o scale.o
@@ -293,6 +293,7 @@ extern AVFilter ff_vf_sab;
extern AVFilter ff_vf_scale;
extern AVFilter ff_vf_scale_cuda;
extern AVFilter ff_vf_scale_npp;
+extern AVFilter ff_vf_scale_opencl;
extern AVFilter ff_vf_scale_qsv;
extern AVFilter ff_vf_scale_vaapi;
extern AVFilter ff_vf_scale2ref;
new file mode 100644
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2018 Gabriel Machado
+ *
+ * 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 neighbor(__write_only image2d_t dst,
+ __read_only image2d_t src)
+{
+ const sampler_t sampler = (CLK_NORMALIZED_COORDS_TRUE |
+ CLK_ADDRESS_CLAMP_TO_EDGE |
+ CLK_FILTER_NEAREST);
+
+ int2 dst_pos = {get_global_id(0), get_global_id(1)};
+ float2 dst_size = {get_global_size(0), get_global_size(1)};
+
+ float2 src_coord = (convert_float2(dst_pos) + 0.5) / dst_size;
+
+ float4 c = read_imagef(src, sampler, src_coord);
+ write_imagef(dst, dst_pos, c);
+}
+
+__kernel void scale(__write_only image2d_t dst,
+ __read_only image2d_t src,
+ __constant float *cx,
+ __constant float *cy,
+ int2 flt_size)
+{
+ const sampler_t s_img = (CLK_NORMALIZED_COORDS_FALSE |
+ CLK_ADDRESS_CLAMP_TO_EDGE |
+ CLK_FILTER_NEAREST);
+
+ int2 dst_pos = {get_global_id(0), get_global_id(1)};
+
+ float2 dst_size = {get_global_size(0), get_global_size(1)};
+ float2 src_size = convert_float2(get_image_dim(src));
+
+ float2 src_coord = (convert_float2(dst_pos) + 0.5) * src_size / dst_size;
+
+ int2 src_pos = convert_int2(floor(src_coord - 0.5));
+
+ float4 col = 0;
+ for (int i = 0; i < flt_size.y; ++i) {
+ float4 s = 0;
+ for (int j = 0; j < flt_size.x; ++j) {
+ float4 c = read_imagef(src, s_img, src_pos + (int2){flt_size.x/2 - j, flt_size.y/2 - i});
+ s += c * cx[dst_pos.x * flt_size.x + j];
+ }
+ col += s * cy[dst_pos.y * flt_size.y + i];
+ }
+
+ write_imagef(dst, dst_pos, col);
+}
@@ -22,6 +22,7 @@
extern const char *ff_opencl_source_avgblur;
extern const char *ff_opencl_source_convolution;
extern const char *ff_opencl_source_overlay;
+extern const char *ff_opencl_source_scale;
extern const char *ff_opencl_source_unsharp;
#endif /* AVFILTER_OPENCL_SOURCE_H */
new file mode 100644
@@ -0,0 +1,544 @@
+/*
+ * Copyright (c) 2018 Gabriel Machado
+ *
+ * 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 "scale.h"
+#include "video.h"
+
+enum filters {
+ F_AREA,
+ F_BICUBIC,
+ F_BILINEAR,
+ F_GAUSSIAN,
+ F_LANCZOS,
+ F_NEIGHBOR,
+ F_SINC,
+ F_SPLINE,
+ F_EXPERIMENTAL
+};
+
+static int filter_radius[] = {
+ [F_AREA] = 1,
+ [F_BICUBIC] = 2,
+ [F_BILINEAR] = 1,
+ [F_GAUSSIAN] = 4,
+ [F_LANCZOS] = 3,
+ [F_NEIGHBOR] = -1,
+ [F_SINC] = 10,
+ [F_SPLINE] = 10,
+ [F_EXPERIMENTAL] = 4
+};
+
+typedef struct ScaleOpenCLContext {
+ OpenCLFilterContext ocf;
+
+ cl_command_queue command_queue;
+ cl_mem cx, cy;
+ cl_kernel kernel;
+ const char *kernel_name;
+
+ char *w_expr, *h_expr;
+ int dst_w, dst_h;
+ int src_w, src_h;
+ int algorithm;
+
+ cl_int2 flt_size;
+ int initialised;
+} ScaleOpenCLContext;
+
+static float netravali(float t, float B, float C)
+{
+ if (t > 2) {
+ return 0;
+ } else {
+ float tt = t*t;
+ float ttt = t*tt;
+ if (t < 1) {
+ return ((12 - 9 * B - 6 * C) * ttt +
+ (-18 + 12 * B + 6 * C) * tt +
+ (6 - 2 * B)) / 6;
+ } else {
+ return ((-B - 6 * C) * ttt +
+ (6 * B + 30 * C) * tt +
+ (-12 * B - 48 * C) * t +
+ (8 * B + 24 * C)) / 6;
+ }
+ }
+}
+
+static float sinc(float t)
+{
+ return (t == 0) ? 1.0 : sin(t * M_PI) / (t * M_PI);
+}
+
+static float lanczos(float t, float a)
+{
+ return (t < a) ? sinc(t) * sinc(t / a) : 0;
+}
+
+static double spline(double a, double b, double c, double d, double dist)
+{
+ if (dist <= 1.0)
+ return ((d * dist + c) * dist + b) * dist + a;
+ else
+ return spline(0.0,
+ b + 2.0 * c + 3.0 * d,
+ c + 3.0 * d,
+ -b - 3.0 * c - 6.0 * d,
+ dist - 1.0);
+}
+
+static float calc_weight(int algorithm, float ratio, float t)
+{
+ t = fabs(t);
+
+ switch (algorithm) {
+ case F_AREA: {
+ float t2 = t - 0.5;
+ if (t2 * ratio < -0.5)
+ return 1;
+ else if (t2 * ratio < 0.5)
+ return -t2 * ratio + 0.5;
+ else
+ return 0;
+ }
+
+ case F_BICUBIC: {
+ const float B = 0, C = 0.6;
+ return netravali(t, B, C);
+ }
+
+ case F_BILINEAR:
+ return t < 1 ? (1 - t) : 0;
+
+ case F_EXPERIMENTAL: {
+ double A = 1.0;
+ double c;
+
+ if (t < 1.0)
+ c = cos(t * M_PI);
+ else
+ c = -1.0;
+ if (c < 0.0)
+ c = -pow(-c, A);
+ else
+ c = pow(c, A);
+ return c * 0.5 + 0.5;
+ }
+
+ case F_GAUSSIAN: {
+ const float p = 3.0;
+ return exp2(-p * t * t);
+ }
+
+ case F_LANCZOS: {
+ return lanczos(t, filter_radius[algorithm]);
+ }
+
+ case F_NEIGHBOR:
+ return 1;
+
+ case F_SINC:
+ return sinc(t);
+
+ case F_SPLINE: {
+ const double p = -2.196152422706632;
+ return spline(1.0, 0.0, p, -p - 1.0, t);
+ }
+ }
+
+ return 0;
+}
+
+static int scale_opencl_init(AVFilterContext *avctx)
+{
+ ScaleOpenCLContext *ctx = avctx->priv;
+ cl_int cle;
+ int err;
+ int i, j;
+ int filterw, filterh;
+ float scalex, scaley;
+ float *cx = NULL, *cy = NULL;
+
+ if (ctx->algorithm == F_NEIGHBOR) {
+ ctx->kernel_name = "neighbor";
+ } else {
+ ctx->kernel_name = "scale";
+
+ scalex = FFMAX((float) ctx->src_w / ctx->dst_w, 1);
+ scaley = FFMAX((float) ctx->src_h / ctx->dst_h, 1);
+ filterw = ceil(2 * filter_radius[ctx->algorithm] * scalex);
+ filterh = ceil(2 * filter_radius[ctx->algorithm] * scaley);
+
+ filterw = FFMIN(filterw, ctx->src_w - 2);
+ filterw = FFMAX(filterw, 1);
+ filterh = FFMIN(filterh, ctx->src_h - 2);
+ filterh = FFMAX(filterh, 1);
+
+ ctx->flt_size.s[0] = filterw;
+ ctx->flt_size.s[1] = filterh;
+
+ av_log(avctx, AV_LOG_INFO, "filter size: %d %d.\n", filterw, filterh);
+
+ cx = av_malloc_array(ctx->dst_w * filterw, sizeof(cl_float));
+ cy = av_malloc_array(ctx->dst_h * filterh, sizeof(cl_float));
+
+ if (!cx || !cy) {
+ err = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ for (i = 0; i < ctx->dst_w; ++i) {
+ float s_x = (i + 0.5) * ctx->src_w / ctx->dst_w - 0.5;
+ float t = s_x - floor(s_x); // fract
+
+ float sum = 0;
+ for (j = 0; j < filterw; ++j) {
+ int x = filterw/2 - j;
+ sum += cx[i * filterw + j] = calc_weight(ctx->algorithm,
+ scalex,
+ (x - t) / scalex);
+ }
+
+ for (j = 0; j < filterw; ++j)
+ cx[i * filterw + j] /= sum;
+ }
+
+ for (i = 0; i < ctx->dst_h; ++i) {
+ float s_y = (i + 0.5) * ctx->src_h / ctx->dst_h - 0.5;
+ float t = s_y - floor(s_y); // fract
+
+ float sum = 0;
+ for (j = 0; j < filterh; ++j) {
+ int y = filterh/2 - j;
+ sum += cy[i * filterh + j] = calc_weight(ctx->algorithm,
+ scaley,
+ (y - t) / scaley);
+ }
+
+ for (j = 0; j < filterh; ++j)
+ cy[i * filterh + j] /= sum;
+ }
+
+ ctx->cx = clCreateBuffer(ctx->ocf.hwctx->context,
+ CL_MEM_READ_ONLY |
+ CL_MEM_COPY_HOST_PTR |
+ CL_MEM_HOST_NO_ACCESS,
+ ctx->dst_w * filterw * sizeof(cl_float),
+ cx,
+ &cle);
+
+ ctx->cy = clCreateBuffer(ctx->ocf.hwctx->context,
+ CL_MEM_READ_ONLY |
+ CL_MEM_COPY_HOST_PTR |
+ CL_MEM_HOST_NO_ACCESS,
+ ctx->dst_h * filterh * sizeof(cl_float),
+ cy,
+ &cle);
+ av_free(cx);
+ av_free(cy);
+ if (!ctx->cx || !ctx->cy) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to create weights buffer: %d.\n", cle);
+ err = AVERROR(EIO);
+ goto fail;
+ }
+ }
+
+ err = ff_opencl_filter_load_program(avctx, &ff_opencl_source_scale, 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;
+ }
+
+ ctx->kernel = clCreateKernel(ctx->ocf.program, ctx->kernel_name, &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);
+ if (ctx->cx)
+ clReleaseMemObject(ctx->cx);
+ if (ctx->cy)
+ clReleaseMemObject(ctx->cy);
+ if (cx)
+ av_free(cx);
+ if (cy)
+ av_free(cy);
+ return err;
+}
+
+static int config_input_props(AVFilterLink *inlink)
+{
+ AVFilterContext *avctx = inlink->dst;
+ AVFilterLink *outlink = avctx->outputs[0];
+ ScaleOpenCLContext *ctx = avctx->priv;
+ int ret;
+
+ if ((ret = ff_scale_eval_dimensions(ctx,
+ ctx->w_expr, ctx->h_expr,
+ inlink, outlink,
+ &ctx->dst_w, &ctx->dst_h)) < 0)
+ return ret;
+
+ if (((int64_t) ctx->dst_h * inlink->w) > INT_MAX ||
+ ((int64_t) ctx->dst_w * inlink->h) > INT_MAX)
+ av_log(ctx, AV_LOG_ERROR, "Rescaled value for width or height is too big.\n");
+
+ ctx->ocf.output_width = ctx->dst_w;
+ ctx->ocf.output_height = ctx->dst_h;
+ ctx->src_w = inlink->w;
+ ctx->src_h = inlink->h;
+
+ return ff_opencl_filter_config_input(inlink);
+}
+
+static int scale_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input)
+{
+ AVFilterContext *avctx = inlink->dst;
+ AVFilterLink *outlink = avctx->outputs[0];
+ ScaleOpenCLContext *ctx = avctx->priv;
+ AVHWFramesContext *main_fc = (AVHWFramesContext *) inlink->hw_frames_ctx->data;
+ const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(main_fc->sw_format);
+ AVFrame *output = NULL;
+
+ cl_int cle;
+ size_t global_work[2];
+ cl_mem src, dst;
+ int err, p;
+ int x_subsample = 1 << pix_desc->log2_chroma_w;
+ int y_subsample = 1 << pix_desc->log2_chroma_h;
+
+ 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 = scale_opencl_init(avctx);
+ if (err < 0)
+ goto fail;
+ }
+
+ output = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+ if (!output) {
+ err = AVERROR(ENOMEM);
+ goto fail;
+ }
+
+ err = av_frame_copy_props(output, input);
+ if (err < 0)
+ goto fail;
+ output->width = outlink->w;
+ output->height = outlink->h;
+
+ 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;
+ }
+
+ if (ctx->algorithm != F_NEIGHBOR) {
+ cle = clSetKernelArg(ctx->kernel, 2, sizeof(cl_mem), &ctx->cx);
+ if (cle != CL_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
+ "cx argument: %d.\n", cle);
+ goto fail;
+ }
+ cle = clSetKernelArg(ctx->kernel, 3, sizeof(cl_mem), &ctx->cy);
+ if (cle != CL_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
+ "cy argument: %d.\n", cle);
+ goto fail;
+ }
+ cle = clSetKernelArg(ctx->kernel, 4, sizeof(cl_int2), &ctx->flt_size);
+ if (cle != CL_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
+ "filter size argument: %d.\n", cle);
+ goto fail;
+ }
+ }
+
+ global_work[0] = output->width / (p ? x_subsample : 1);
+ global_work[1] = output->height / (p ? y_subsample : 1);
+
+ av_log(avctx, AV_LOG_DEBUG, "Run kernel on plane %d "
+ "(%"SIZE_SPECIFIER"x%"SIZE_SPECIFIER").\n",
+ p, global_work[0], global_work[1]);
+
+ cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel, 2, NULL,
+ global_work, NULL, 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;
+ }
+
+ 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 scale_opencl_uninit(AVFilterContext *avctx)
+{
+ ScaleOpenCLContext *ctx = avctx->priv;
+ cl_int cle;
+
+ 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);
+ }
+
+ if (ctx->cx) {
+ cle = clReleaseMemObject(ctx->cx);
+ if (cle != CL_SUCCESS)
+ av_log(avctx, AV_LOG_ERROR, "Failed to release "
+ "weights buffer: %d.\n", cle);
+ }
+
+ if (ctx->cy) {
+ cle = clReleaseMemObject(ctx->cy);
+ if (cle != CL_SUCCESS)
+ av_log(avctx, AV_LOG_ERROR, "Failed to release "
+ "weights buffer: %d.\n", cle);
+ }
+
+ ff_opencl_filter_uninit(avctx);
+}
+
+#define OFFSET(x) offsetof(ScaleOpenCLContext, x)
+#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
+static const AVOption scale_opencl_options[] = {
+ { "w", "Output video width", OFFSET(w_expr), AV_OPT_TYPE_STRING, { .str = "iw" }, .flags = FLAGS },
+ { "h", "Output video height", OFFSET(h_expr), AV_OPT_TYPE_STRING, { .str = "ih" }, .flags = FLAGS },
+ { "algorithm", "Scaling algorithm", OFFSET(algorithm), AV_OPT_TYPE_INT, { .i64 = F_BICUBIC }, INT_MIN, INT_MAX, FLAGS, "algorithm" },
+ { "area", "area averaging", 0, AV_OPT_TYPE_CONST, { .i64 = F_AREA }, 0, 0, FLAGS, "algorithm" },
+ { "bicubic", "bicubic", 0, AV_OPT_TYPE_CONST, { .i64 = F_BICUBIC }, 0, 0, FLAGS, "algorithm" },
+ { "bilinear", "bilinear", 0, AV_OPT_TYPE_CONST, { .i64 = F_BILINEAR }, 0, 0, FLAGS, "algorithm" },
+ { "experimental", "experimental", 0, AV_OPT_TYPE_CONST, { .i64 = F_EXPERIMENTAL }, 0, 0, FLAGS, "algorithm" },
+ { "gauss", "Gaussian", 0, AV_OPT_TYPE_CONST, { .i64 = F_GAUSSIAN }, 0, 0, FLAGS, "algorithm" },
+ { "lanczos", "Lanczos", 0, AV_OPT_TYPE_CONST, { .i64 = F_LANCZOS }, 0, 0, FLAGS, "algorithm" },
+ { "neighbor", "nearest neighbor", 0, AV_OPT_TYPE_CONST, { .i64 = F_NEIGHBOR }, 0, 0, FLAGS, "algorithm" },
+ { "sinc", "sinc", 0, AV_OPT_TYPE_CONST, { .i64 = F_SINC }, 0, 0, FLAGS, "algorithm" },
+ { "spline", "bicubic spline", 0, AV_OPT_TYPE_CONST, { .i64 = F_SPLINE }, 0, 0, FLAGS, "algorithm" },
+ { NULL }
+};
+
+AVFILTER_DEFINE_CLASS(scale_opencl);
+
+static const AVFilterPad scale_opencl_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = &scale_opencl_filter_frame,
+ .config_props = &config_input_props,
+ },
+ { NULL }
+};
+
+static const AVFilterPad scale_opencl_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .config_props = &ff_opencl_filter_config_output,
+ },
+ { NULL }
+};
+
+AVFilter ff_vf_scale_opencl = {
+ .name = "scale_opencl",
+ .description = NULL_IF_CONFIG_SMALL("Scale the input video size."),
+ .priv_size = sizeof(ScaleOpenCLContext),
+ .priv_class = &scale_opencl_class,
+ .init = &ff_opencl_filter_init,
+ .uninit = &scale_opencl_uninit,
+ .query_formats = &ff_opencl_filter_query_formats,
+ .inputs = scale_opencl_inputs,
+ .outputs = scale_opencl_outputs,
+ .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
+};