libavfilter/vf_avgblur_opencl.c - third_party/ffmpeg - Git at Google

 /*
  * Copyright (c) 2018 Dylan Fernando
  * Copyright (c) 2018 Danil Iashchenko
  *
  * 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/opt.h"

 #include "avfilter.h"
 #include "internal.h"
 #include "opencl.h"
 #include "opencl_source.h"
 #include "video.h"
 #include "boxblur.h"

 typedef struct AverageBlurOpenCLContext {
     OpenCLFilterContext ocf;

     int              initialised;
     cl_kernel        kernel_horiz;
     cl_kernel        kernel_vert;
     cl_command_queue command_queue;

     int radiusH;
     int radiusV;
     int planes;

     FilterParam luma_param;
     FilterParam chroma_param;
     FilterParam alpha_param;
     int radius[4];
     int power[4];

 } AverageBlurOpenCLContext;


 static int avgblur_opencl_init(AVFilterContext *avctx)
 {
     AverageBlurOpenCLContext *ctx = avctx->priv;
     cl_int cle;
     int err;

     err = ff_opencl_filter_load_program(avctx, &ff_opencl_source_avgblur, 1);
     if (err < 0)
         goto fail;

     ctx->command_queue = clCreateCommandQueue(ctx->ocf.hwctx->context,
                                               ctx->ocf.hwctx->device_id,
                                               0, &cle);
     CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create OpenCL "
                      "command queue %d.\n", cle);

     ctx->kernel_horiz = clCreateKernel(ctx->ocf.program,"avgblur_horiz", &cle);
     CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create horizontal "
                      "kernel %d.\n", cle);

     ctx->kernel_vert = clCreateKernel(ctx->ocf.program,"avgblur_vert", &cle);
     CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create vertical "
                      "kernel %d.\n", cle);

     ctx->initialised = 1;
     return 0;

 fail:
     if (ctx->command_queue)
         clReleaseCommandQueue(ctx->command_queue);
     if (ctx->kernel_horiz)
         clReleaseKernel(ctx->kernel_horiz);
     if (ctx->kernel_vert)
         clReleaseKernel(ctx->kernel_vert);
     return err;
 }


 static int avgblur_opencl_make_filter_params(AVFilterLink *inlink)
 {
     AVFilterContext    *ctx = inlink->dst;
     AverageBlurOpenCLContext *s = ctx->priv;
     int i;

     if (s->radiusV <= 0) {
         s->radiusV = s->radiusH;
     }

     for (i = 0; i < 4; i++) {
         s->power[i] = 1;
     }
     return 0;
 }


 static int boxblur_opencl_make_filter_params(AVFilterLink *inlink)
 {
     AVFilterContext    *ctx = inlink->dst;
     AverageBlurOpenCLContext *s = ctx->priv;
     int err, i;

     err = ff_boxblur_eval_filter_params(inlink,
                                         &s->luma_param,
                                         &s->chroma_param,
                                         &s->alpha_param);

     if (err != 0) {
         av_log(ctx, AV_LOG_ERROR, "Failed to evaluate "
                "filter params: %d.\n", err);
         return err;
     }

     s->radius[Y] = s->luma_param.radius;
     s->radius[U] = s->radius[V] = s->chroma_param.radius;
     s->radius[A] = s->alpha_param.radius;

     s->power[Y] = s->luma_param.power;
     s->power[U] = s->power[V] = s->chroma_param.power;
     s->power[A] = s->alpha_param.power;

     for (i = 0; i < 4; i++) {
         if (s->power[i] == 0) {
             s->power[i] = 1;
             s->radius[i] = 0;
         }
     }

     return 0;
 }


 static int avgblur_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input)
 {
     AVFilterContext    *avctx = inlink->dst;
     AVFilterLink     *outlink = avctx->outputs[0];
     AverageBlurOpenCLContext *ctx = avctx->priv;
     AVFrame *output = NULL;
     AVFrame *intermediate = NULL;
     cl_int cle;
     size_t global_work[2];
     cl_mem src, dst, inter;
     int err, p, radius_x, radius_y, i;

     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 = avgblur_opencl_init(avctx);
         if (err < 0)
             goto fail;

         if (!strcmp(avctx->filter->name, "avgblur_opencl")) {
             err = avgblur_opencl_make_filter_params(inlink);
             if (err < 0)
                 goto fail;
         } else if (!strcmp(avctx->filter->name, "boxblur_opencl")) {
             err = boxblur_opencl_make_filter_params(inlink);
             if (err < 0)
                 goto fail;
         }

     }

     output = ff_get_video_buffer(outlink, outlink->w, outlink->h);
     if (!output) {
         err = AVERROR(ENOMEM);
         goto fail;
     }
     intermediate = ff_get_video_buffer(outlink, outlink->w, outlink->h);
     if (!intermediate) {
         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];
         inter = (cl_mem)intermediate->data[p];

         if (!dst)
             break;

         radius_x = ctx->radiusH;
         radius_y = ctx->radiusV;

         if (!(ctx->planes & (1 << p))) {
             radius_x = 0;
             radius_y = 0;
         }

         for (i = 0; i < ctx->power[p]; i++) {
             CL_SET_KERNEL_ARG(ctx->kernel_horiz, 0, cl_mem, &inter);
             CL_SET_KERNEL_ARG(ctx->kernel_horiz, 1, cl_mem, i == 0 ? &src : &dst);
             if (!strcmp(avctx->filter->name, "avgblur_opencl")) {
                 CL_SET_KERNEL_ARG(ctx->kernel_horiz, 2, cl_int, &radius_x);
             } else if (!strcmp(avctx->filter->name, "boxblur_opencl")) {
                 CL_SET_KERNEL_ARG(ctx->kernel_horiz, 2, cl_int, &ctx->radius[p]);
             }

             err = ff_opencl_filter_work_size_from_image(avctx, global_work,
                                                         i == 0 ? intermediate : output, p, 0);
             if (err < 0)
                 goto fail;

             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_horiz, 2, NULL,
                                          global_work, NULL,
                                          0, NULL, NULL);
             CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to enqueue horizontal "
                              "kernel: %d.\n", cle);

             err = ff_opencl_filter_work_size_from_image(avctx, global_work,
                                                         i == 0 ? output : intermediate, p, 0);

             CL_SET_KERNEL_ARG(ctx->kernel_vert, 0, cl_mem, &dst);
             CL_SET_KERNEL_ARG(ctx->kernel_vert, 1, cl_mem, &inter);

             if (!strcmp(avctx->filter->name, "avgblur_opencl")) {
                 CL_SET_KERNEL_ARG(ctx->kernel_vert, 2, cl_int, &radius_y);
             } else if (!strcmp(avctx->filter->name, "boxblur_opencl")) {
                 CL_SET_KERNEL_ARG(ctx->kernel_vert, 2, cl_int, &ctx->radius[p]);
             }

             cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel_vert, 2, NULL,
                                          global_work, NULL,
                                          0, NULL, NULL);
             CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to enqueue vertical "
                              "kernel: %d.\n", cle);
         }
     }

     cle = clFinish(ctx->command_queue);
     CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to finish command queue: %d.\n", cle);

     err = av_frame_copy_props(output, input);
     if (err < 0)
         goto fail;

     av_frame_free(&input);
     av_frame_free(&intermediate);

     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);
     av_frame_free(&intermediate);
     return err;
 }


 static av_cold void avgblur_opencl_uninit(AVFilterContext *avctx)
 {
     AverageBlurOpenCLContext *ctx = avctx->priv;
     cl_int cle;

     if (ctx->kernel_horiz) {
         cle = clReleaseKernel(ctx->kernel_horiz);
         if (cle != CL_SUCCESS)
             av_log(avctx, AV_LOG_ERROR, "Failed to release "
                    "kernel: %d.\n", cle);
     }

     if (ctx->kernel_vert) {
         cle = clReleaseKernel(ctx->kernel_vert);
         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);
 }


 static const AVFilterPad avgblur_opencl_inputs[] = {
     {
         .name         = "default",
         .type         = AVMEDIA_TYPE_VIDEO,
         .filter_frame = &avgblur_opencl_filter_frame,
         .config_props = &ff_opencl_filter_config_input,
     },
     { NULL }
 };


 static const AVFilterPad avgblur_opencl_outputs[] = {
     {
         .name         = "default",
         .type         = AVMEDIA_TYPE_VIDEO,
         .config_props = &ff_opencl_filter_config_output,
     },
     { NULL }
 };


 #define OFFSET(x) offsetof(AverageBlurOpenCLContext, x)
 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

 #if CONFIG_AVGBLUR_OPENCL_FILTER

 static const AVOption avgblur_opencl_options[] = {
     { "sizeX",  "set horizontal size",  OFFSET(radiusH), AV_OPT_TYPE_INT, {.i64=1},   1, 1024, FLAGS },
     { "planes", "set planes to filter", OFFSET(planes),  AV_OPT_TYPE_INT, {.i64=0xF}, 0,  0xF, FLAGS },
     { "sizeY",  "set vertical size",    OFFSET(radiusV), AV_OPT_TYPE_INT, {.i64=0},   0, 1024, FLAGS },
     { NULL }
 };

 AVFILTER_DEFINE_CLASS(avgblur_opencl);


 AVFilter ff_vf_avgblur_opencl = {
     .name           = "avgblur_opencl",
     .description    = NULL_IF_CONFIG_SMALL("Apply average blur filter"),
     .priv_size      = sizeof(AverageBlurOpenCLContext),
     .priv_class     = &avgblur_opencl_class,
     .init           = &ff_opencl_filter_init,
     .uninit         = &avgblur_opencl_uninit,
     .query_formats  = &ff_opencl_filter_query_formats,
     .inputs         = avgblur_opencl_inputs,
     .outputs        = avgblur_opencl_outputs,
     .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
 };

 #endif /* CONFIG_AVGBLUR_OPENCL_FILTER */


 #if CONFIG_BOXBLUR_OPENCL_FILTER

 static const AVOption boxblur_opencl_options[] = {
     { "luma_radius", "Radius of the luma blurring box", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
     { "lr",          "Radius of the luma blurring box", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
     { "luma_power",  "How many times should the boxblur be applied to luma",  OFFSET(luma_param.power), AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags = FLAGS },
     { "lp",          "How many times should the boxblur be applied to luma",  OFFSET(luma_param.power), AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags = FLAGS },

     { "chroma_radius", "Radius of the chroma blurring box", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
     { "cr",            "Radius of the chroma blurring box", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
     { "chroma_power",  "How many times should the boxblur be applied to chroma",  OFFSET(chroma_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
     { "cp",            "How many times should the boxblur be applied to chroma",  OFFSET(chroma_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },

     { "alpha_radius", "Radius of the alpha blurring box", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
     { "ar",           "Radius of the alpha blurring box", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
     { "alpha_power",  "How many times should the boxblur be applied to alpha",  OFFSET(alpha_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
     { "ap",           "How many times should the boxblur be applied to alpha",  OFFSET(alpha_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },

     { NULL }
 };

 AVFILTER_DEFINE_CLASS(boxblur_opencl);

 AVFilter ff_vf_boxblur_opencl = {
     .name           = "boxblur_opencl",
     .description    = NULL_IF_CONFIG_SMALL("Apply boxblur filter to input video"),
     .priv_size      = sizeof(AverageBlurOpenCLContext),
     .priv_class     = &boxblur_opencl_class,
     .init           = &ff_opencl_filter_init,
     .uninit         = &avgblur_opencl_uninit,
     .query_formats  = &ff_opencl_filter_query_formats,
     .inputs         = avgblur_opencl_inputs,
     .outputs        = avgblur_opencl_outputs,
     .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
 };

 #endif /* CONFIG_BOXBLUR_OPENCL_FILTER */
	/*
	* Copyright (c) 2018 Dylan Fernando
	* Copyright (c) 2018 Danil Iashchenko
	*
	* 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/opt.h"

	#include "avfilter.h"
	#include "internal.h"
	#include "opencl.h"
	#include "opencl_source.h"
	#include "video.h"
	#include "boxblur.h"

	typedef struct AverageBlurOpenCLContext {
	OpenCLFilterContext ocf;

	int initialised;
	cl_kernel kernel_horiz;
	cl_kernel kernel_vert;
	cl_command_queue command_queue;

	int radiusH;
	int radiusV;
	int planes;

	FilterParam luma_param;
	FilterParam chroma_param;
	FilterParam alpha_param;
	int radius[4];
	int power[4];

	} AverageBlurOpenCLContext;


	static int avgblur_opencl_init(AVFilterContext *avctx)
	{
	AverageBlurOpenCLContext *ctx = avctx->priv;
	cl_int cle;
	int err;

	err = ff_opencl_filter_load_program(avctx, &ff_opencl_source_avgblur, 1);
	if (err < 0)
	goto fail;

	ctx->command_queue = clCreateCommandQueue(ctx->ocf.hwctx->context,
	ctx->ocf.hwctx->device_id,
	0, &cle);
	CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create OpenCL "
	"command queue %d.\n", cle);

	ctx->kernel_horiz = clCreateKernel(ctx->ocf.program,"avgblur_horiz", &cle);
	CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create horizontal "
	"kernel %d.\n", cle);

	ctx->kernel_vert = clCreateKernel(ctx->ocf.program,"avgblur_vert", &cle);
	CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create vertical "
	"kernel %d.\n", cle);

	ctx->initialised = 1;
	return 0;

	fail:
	if (ctx->command_queue)
	clReleaseCommandQueue(ctx->command_queue);
	if (ctx->kernel_horiz)
	clReleaseKernel(ctx->kernel_horiz);
	if (ctx->kernel_vert)
	clReleaseKernel(ctx->kernel_vert);
	return err;
	}


	static int avgblur_opencl_make_filter_params(AVFilterLink *inlink)
	{
	AVFilterContext *ctx = inlink->dst;
	AverageBlurOpenCLContext *s = ctx->priv;
	int i;

	if (s->radiusV <= 0) {
	s->radiusV = s->radiusH;
	}

	for (i = 0; i < 4; i++) {
	s->power[i] = 1;
	}
	return 0;
	}


	static int boxblur_opencl_make_filter_params(AVFilterLink *inlink)
	{
	AVFilterContext *ctx = inlink->dst;
	AverageBlurOpenCLContext *s = ctx->priv;
	int err, i;

	err = ff_boxblur_eval_filter_params(inlink,
	&s->luma_param,
	&s->chroma_param,
	&s->alpha_param);

	if (err != 0) {
	av_log(ctx, AV_LOG_ERROR, "Failed to evaluate "
	"filter params: %d.\n", err);
	return err;
	}

	s->radius[Y] = s->luma_param.radius;
	s->radius[U] = s->radius[V] = s->chroma_param.radius;
	s->radius[A] = s->alpha_param.radius;

	s->power[Y] = s->luma_param.power;
	s->power[U] = s->power[V] = s->chroma_param.power;
	s->power[A] = s->alpha_param.power;

	for (i = 0; i < 4; i++) {
	if (s->power[i] == 0) {
	s->power[i] = 1;
	s->radius[i] = 0;
	}
	}

	return 0;
	}


	static int avgblur_opencl_filter_frame(AVFilterLink inlink, AVFrame input)
	{
	AVFilterContext *avctx = inlink->dst;
	AVFilterLink *outlink = avctx->outputs[0];
	AverageBlurOpenCLContext *ctx = avctx->priv;
	AVFrame *output = NULL;
	AVFrame *intermediate = NULL;
	cl_int cle;
	size_t global_work[2];
	cl_mem src, dst, inter;
	int err, p, radius_x, radius_y, i;

	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 = avgblur_opencl_init(avctx);
	if (err < 0)
	goto fail;

	if (!strcmp(avctx->filter->name, "avgblur_opencl")) {
	err = avgblur_opencl_make_filter_params(inlink);
	if (err < 0)
	goto fail;
	} else if (!strcmp(avctx->filter->name, "boxblur_opencl")) {
	err = boxblur_opencl_make_filter_params(inlink);
	if (err < 0)
	goto fail;
	}

	}

	output = ff_get_video_buffer(outlink, outlink->w, outlink->h);
	if (!output) {
	err = AVERROR(ENOMEM);
	goto fail;
	}
	intermediate = ff_get_video_buffer(outlink, outlink->w, outlink->h);
	if (!intermediate) {
	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];
	inter = (cl_mem)intermediate->data[p];

	if (!dst)
	break;

	radius_x = ctx->radiusH;
	radius_y = ctx->radiusV;

	if (!(ctx->planes & (1 << p))) {
	radius_x = 0;
	radius_y = 0;
	}

	for (i = 0; i < ctx->power[p]; i++) {
	CL_SET_KERNEL_ARG(ctx->kernel_horiz, 0, cl_mem, &inter);
	CL_SET_KERNEL_ARG(ctx->kernel_horiz, 1, cl_mem, i == 0 ? &src : &dst);
	if (!strcmp(avctx->filter->name, "avgblur_opencl")) {
	CL_SET_KERNEL_ARG(ctx->kernel_horiz, 2, cl_int, &radius_x);
	} else if (!strcmp(avctx->filter->name, "boxblur_opencl")) {
	CL_SET_KERNEL_ARG(ctx->kernel_horiz, 2, cl_int, &ctx->radius[p]);
	}

	err = ff_opencl_filter_work_size_from_image(avctx, global_work,
	i == 0 ? intermediate : output, p, 0);
	if (err < 0)
	goto fail;

	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_horiz, 2, NULL,
	global_work, NULL,
	0, NULL, NULL);
	CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to enqueue horizontal "
	"kernel: %d.\n", cle);

	err = ff_opencl_filter_work_size_from_image(avctx, global_work,
	i == 0 ? output : intermediate, p, 0);

	CL_SET_KERNEL_ARG(ctx->kernel_vert, 0, cl_mem, &dst);
	CL_SET_KERNEL_ARG(ctx->kernel_vert, 1, cl_mem, &inter);

	if (!strcmp(avctx->filter->name, "avgblur_opencl")) {
	CL_SET_KERNEL_ARG(ctx->kernel_vert, 2, cl_int, &radius_y);
	} else if (!strcmp(avctx->filter->name, "boxblur_opencl")) {
	CL_SET_KERNEL_ARG(ctx->kernel_vert, 2, cl_int, &ctx->radius[p]);
	}

	cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel_vert, 2, NULL,
	global_work, NULL,
	0, NULL, NULL);
	CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to enqueue vertical "
	"kernel: %d.\n", cle);
	}
	}

	cle = clFinish(ctx->command_queue);
	CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to finish command queue: %d.\n", cle);

	err = av_frame_copy_props(output, input);
	if (err < 0)
	goto fail;

	av_frame_free(&input);
	av_frame_free(&intermediate);

	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);
	av_frame_free(&intermediate);
	return err;
	}


	static av_cold void avgblur_opencl_uninit(AVFilterContext *avctx)
	{
	AverageBlurOpenCLContext *ctx = avctx->priv;
	cl_int cle;

	if (ctx->kernel_horiz) {
	cle = clReleaseKernel(ctx->kernel_horiz);
	if (cle != CL_SUCCESS)
	av_log(avctx, AV_LOG_ERROR, "Failed to release "
	"kernel: %d.\n", cle);
	}

	if (ctx->kernel_vert) {
	cle = clReleaseKernel(ctx->kernel_vert);
	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);
	}


	static const AVFilterPad avgblur_opencl_inputs[] = {
	{
	.name = "default",
	.type = AVMEDIA_TYPE_VIDEO,
	.filter_frame = &avgblur_opencl_filter_frame,
	.config_props = &ff_opencl_filter_config_input,
	},
	{ NULL }
	};


	static const AVFilterPad avgblur_opencl_outputs[] = {
	{
	.name = "default",
	.type = AVMEDIA_TYPE_VIDEO,
	.config_props = &ff_opencl_filter_config_output,
	},
	{ NULL }
	};


	#define OFFSET(x) offsetof(AverageBlurOpenCLContext, x)
	#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM \| AV_OPT_FLAG_VIDEO_PARAM)

	#if CONFIG_AVGBLUR_OPENCL_FILTER

	static const AVOption avgblur_opencl_options[] = {
	{ "sizeX", "set horizontal size", OFFSET(radiusH), AV_OPT_TYPE_INT, {.i64=1}, 1, 1024, FLAGS },
	{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
	{ "sizeY", "set vertical size", OFFSET(radiusV), AV_OPT_TYPE_INT, {.i64=0}, 0, 1024, FLAGS },
	{ NULL }
	};

	AVFILTER_DEFINE_CLASS(avgblur_opencl);


	AVFilter ff_vf_avgblur_opencl = {
	.name = "avgblur_opencl",
	.description = NULL_IF_CONFIG_SMALL("Apply average blur filter"),
	.priv_size = sizeof(AverageBlurOpenCLContext),
	.priv_class = &avgblur_opencl_class,
	.init = &ff_opencl_filter_init,
	.uninit = &avgblur_opencl_uninit,
	.query_formats = &ff_opencl_filter_query_formats,
	.inputs = avgblur_opencl_inputs,
	.outputs = avgblur_opencl_outputs,
	.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
	};

	#endif /* CONFIG_AVGBLUR_OPENCL_FILTER */


	#if CONFIG_BOXBLUR_OPENCL_FILTER

	static const AVOption boxblur_opencl_options[] = {
	{ "luma_radius", "Radius of the luma blurring box", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
	{ "lr", "Radius of the luma blurring box", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
	{ "luma_power", "How many times should the boxblur be applied to luma", OFFSET(luma_param.power), AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags = FLAGS },
	{ "lp", "How many times should the boxblur be applied to luma", OFFSET(luma_param.power), AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags = FLAGS },

	{ "chroma_radius", "Radius of the chroma blurring box", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
	{ "cr", "Radius of the chroma blurring box", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
	{ "chroma_power", "How many times should the boxblur be applied to chroma", OFFSET(chroma_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
	{ "cp", "How many times should the boxblur be applied to chroma", OFFSET(chroma_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },

	{ "alpha_radius", "Radius of the alpha blurring box", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
	{ "ar", "Radius of the alpha blurring box", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
	{ "alpha_power", "How many times should the boxblur be applied to alpha", OFFSET(alpha_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
	{ "ap", "How many times should the boxblur be applied to alpha", OFFSET(alpha_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },

	{ NULL }
	};

	AVFILTER_DEFINE_CLASS(boxblur_opencl);

	AVFilter ff_vf_boxblur_opencl = {
	.name = "boxblur_opencl",
	.description = NULL_IF_CONFIG_SMALL("Apply boxblur filter to input video"),
	.priv_size = sizeof(AverageBlurOpenCLContext),
	.priv_class = &boxblur_opencl_class,
	.init = &ff_opencl_filter_init,
	.uninit = &avgblur_opencl_uninit,
	.query_formats = &ff_opencl_filter_query_formats,
	.inputs = avgblur_opencl_inputs,
	.outputs = avgblur_opencl_outputs,
	.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
	};

	#endif /* CONFIG_BOXBLUR_OPENCL_FILTER */