2 * Copyright (c) 2018 Dylan Fernando
3 * Copyright (c) 2018 Danil Iashchenko
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/common.h"
23 #include "libavutil/imgutils.h"
24 #include "libavutil/opt.h"
29 #include "opencl_source.h"
33 typedef struct AverageBlurOpenCLContext {
34 OpenCLFilterContext ocf;
37 cl_kernel kernel_horiz;
38 cl_kernel kernel_vert;
39 cl_command_queue command_queue;
45 FilterParam luma_param;
46 FilterParam chroma_param;
47 FilterParam alpha_param;
51 } AverageBlurOpenCLContext;
54 static int avgblur_opencl_init(AVFilterContext *avctx)
56 AverageBlurOpenCLContext *ctx = avctx->priv;
60 err = ff_opencl_filter_load_program(avctx, &ff_opencl_source_avgblur, 1);
64 ctx->command_queue = clCreateCommandQueue(ctx->ocf.hwctx->context,
65 ctx->ocf.hwctx->device_id,
67 if (!ctx->command_queue) {
68 av_log(avctx, AV_LOG_ERROR, "Failed to create OpenCL "
69 "command queue: %d.\n", cle);
74 ctx->kernel_horiz = clCreateKernel(ctx->ocf.program,"avgblur_horiz", &cle);
75 if (!ctx->kernel_horiz) {
76 av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle);
81 ctx->kernel_vert = clCreateKernel(ctx->ocf.program,"avgblur_vert", &cle);
82 if (!ctx->kernel_vert) {
83 av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle);
92 if (ctx->command_queue)
93 clReleaseCommandQueue(ctx->command_queue);
94 if (ctx->kernel_horiz)
95 clReleaseKernel(ctx->kernel_horiz);
97 clReleaseKernel(ctx->kernel_vert);
102 static int avgblur_opencl_make_filter_params(AVFilterLink *inlink)
104 AVFilterContext *ctx = inlink->dst;
105 AverageBlurOpenCLContext *s = ctx->priv;
108 if (s->radiusV <= 0) {
109 s->radiusV = s->radiusH;
112 for (i = 0; i < 4; i++) {
119 static int boxblur_opencl_make_filter_params(AVFilterLink *inlink)
121 AVFilterContext *ctx = inlink->dst;
122 AverageBlurOpenCLContext *s = ctx->priv;
125 err = ff_boxblur_eval_filter_params(inlink,
131 av_log(ctx, AV_LOG_ERROR, "Failed to evaluate "
132 "filter params: %d.\n", err);
136 s->radius[Y] = s->luma_param.radius;
137 s->radius[U] = s->radius[V] = s->chroma_param.radius;
138 s->radius[A] = s->alpha_param.radius;
140 s->power[Y] = s->luma_param.power;
141 s->power[U] = s->power[V] = s->chroma_param.power;
142 s->power[A] = s->alpha_param.power;
144 for (i = 0; i < 4; i++) {
145 if (s->power[i] == 0) {
155 static int avgblur_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input)
157 AVFilterContext *avctx = inlink->dst;
158 AVFilterLink *outlink = avctx->outputs[0];
159 AverageBlurOpenCLContext *ctx = avctx->priv;
160 AVFrame *output = NULL;
161 AVFrame *intermediate = NULL;
163 size_t global_work[2];
164 cl_mem src, dst, inter;
165 int err, p, radius_x, radius_y, i;
167 av_log(ctx, AV_LOG_DEBUG, "Filter input: %s, %ux%u (%"PRId64").\n",
168 av_get_pix_fmt_name(input->format),
169 input->width, input->height, input->pts);
171 if (!input->hw_frames_ctx)
172 return AVERROR(EINVAL);
174 if (!ctx->initialised) {
175 err = avgblur_opencl_init(avctx);
179 if (!strcmp(avctx->filter->name, "avgblur_opencl")) {
180 err = avgblur_opencl_make_filter_params(inlink);
183 } else if (!strcmp(avctx->filter->name, "boxblur_opencl")) {
184 err = boxblur_opencl_make_filter_params(inlink);
191 output = ff_get_video_buffer(outlink, outlink->w, outlink->h);
193 err = AVERROR(ENOMEM);
196 intermediate = ff_get_video_buffer(outlink, outlink->w, outlink->h);
198 err = AVERROR(ENOMEM);
202 for (p = 0; p < FF_ARRAY_ELEMS(output->data); p++) {
203 src = (cl_mem) input->data[p];
204 dst = (cl_mem) output->data[p];
205 inter = (cl_mem)intermediate->data[p];
210 radius_x = ctx->radiusH;
211 radius_y = ctx->radiusV;
213 if (!(ctx->planes & (1 << p))) {
218 av_log(avctx, AV_LOG_DEBUG, "Run kernel on plane %d "
219 "(%"SIZE_SPECIFIER"x%"SIZE_SPECIFIER").\n",
220 p, global_work[0], global_work[1]);
222 for (i = 0; i < ctx->power[p]; i++) {
223 CL_SET_KERNEL_ARG(ctx->kernel_horiz, 0, cl_mem, &inter);
224 CL_SET_KERNEL_ARG(ctx->kernel_horiz, 1, cl_mem, i == 0 ? &src : &dst);
225 if (!strcmp(avctx->filter->name, "avgblur_opencl")) {
226 CL_SET_KERNEL_ARG(ctx->kernel_horiz, 2, cl_int, &radius_x);
227 } else if (!strcmp(avctx->filter->name, "boxblur_opencl")) {
228 CL_SET_KERNEL_ARG(ctx->kernel_horiz, 2, cl_int, &ctx->radius[p]);
231 err = ff_opencl_filter_work_size_from_image(avctx, global_work,
232 i == 0 ? intermediate : output, p, 0);
236 cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel_horiz, 2, NULL,
239 if (cle != CL_SUCCESS) {
240 av_log(avctx, AV_LOG_ERROR, "Failed to enqueue kernel: %d.\n",
245 cle = clFinish(ctx->command_queue);
247 err = ff_opencl_filter_work_size_from_image(avctx, global_work,
248 i == 0 ? output : intermediate, p, 0);
250 CL_SET_KERNEL_ARG(ctx->kernel_vert, 0, cl_mem, &dst);
251 CL_SET_KERNEL_ARG(ctx->kernel_vert, 1, cl_mem, &inter);
253 if (!strcmp(avctx->filter->name, "avgblur_opencl")) {
254 CL_SET_KERNEL_ARG(ctx->kernel_vert, 2, cl_int, &radius_y);
255 } else if (!strcmp(avctx->filter->name, "boxblur_opencl")) {
256 CL_SET_KERNEL_ARG(ctx->kernel_vert, 2, cl_int, &ctx->radius[p]);
259 cle = clEnqueueNDRangeKernel(ctx->command_queue, ctx->kernel_vert, 2, NULL,
262 if (cle != CL_SUCCESS) {
263 av_log(avctx, AV_LOG_ERROR, "Failed to enqueue kernel: %d.\n",
271 cle = clFinish(ctx->command_queue);
272 if (cle != CL_SUCCESS) {
273 av_log(avctx, AV_LOG_ERROR, "Failed to finish command queue: %d.\n",
279 err = av_frame_copy_props(output, input);
283 av_frame_free(&input);
284 av_frame_free(&intermediate);
286 av_log(ctx, AV_LOG_DEBUG, "Filter output: %s, %ux%u (%"PRId64").\n",
287 av_get_pix_fmt_name(output->format),
288 output->width, output->height, output->pts);
290 return ff_filter_frame(outlink, output);
293 clFinish(ctx->command_queue);
294 av_frame_free(&input);
295 av_frame_free(&output);
296 av_frame_free(&intermediate);
301 static av_cold void avgblur_opencl_uninit(AVFilterContext *avctx)
303 AverageBlurOpenCLContext *ctx = avctx->priv;
306 if (ctx->kernel_horiz) {
307 cle = clReleaseKernel(ctx->kernel_horiz);
308 if (cle != CL_SUCCESS)
309 av_log(avctx, AV_LOG_ERROR, "Failed to release "
310 "kernel: %d.\n", cle);
313 if (ctx->kernel_vert) {
314 cle = clReleaseKernel(ctx->kernel_vert);
315 if (cle != CL_SUCCESS)
316 av_log(avctx, AV_LOG_ERROR, "Failed to release "
317 "kernel: %d.\n", cle);
320 if (ctx->command_queue) {
321 cle = clReleaseCommandQueue(ctx->command_queue);
322 if (cle != CL_SUCCESS)
323 av_log(avctx, AV_LOG_ERROR, "Failed to release "
324 "command queue: %d.\n", cle);
327 ff_opencl_filter_uninit(avctx);
331 static const AVFilterPad avgblur_opencl_inputs[] = {
334 .type = AVMEDIA_TYPE_VIDEO,
335 .filter_frame = &avgblur_opencl_filter_frame,
336 .config_props = &ff_opencl_filter_config_input,
342 static const AVFilterPad avgblur_opencl_outputs[] = {
345 .type = AVMEDIA_TYPE_VIDEO,
346 .config_props = &ff_opencl_filter_config_output,
352 #define OFFSET(x) offsetof(AverageBlurOpenCLContext, x)
353 #define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
355 #if CONFIG_AVGBLUR_OPENCL_FILTER
357 static const AVOption avgblur_opencl_options[] = {
358 { "sizeX", "set horizontal size", OFFSET(radiusH), AV_OPT_TYPE_INT, {.i64=1}, 1, 1024, FLAGS },
359 { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
360 { "sizeY", "set vertical size", OFFSET(radiusV), AV_OPT_TYPE_INT, {.i64=0}, 0, 1024, FLAGS },
364 AVFILTER_DEFINE_CLASS(avgblur_opencl);
367 AVFilter ff_vf_avgblur_opencl = {
368 .name = "avgblur_opencl",
369 .description = NULL_IF_CONFIG_SMALL("Apply average blur filter"),
370 .priv_size = sizeof(AverageBlurOpenCLContext),
371 .priv_class = &avgblur_opencl_class,
372 .init = &ff_opencl_filter_init,
373 .uninit = &avgblur_opencl_uninit,
374 .query_formats = &ff_opencl_filter_query_formats,
375 .inputs = avgblur_opencl_inputs,
376 .outputs = avgblur_opencl_outputs,
377 .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
380 #endif /* CONFIG_AVGBLUR_OPENCL_FILTER */
383 #if CONFIG_BOXBLUR_OPENCL_FILTER
385 static const AVOption boxblur_opencl_options[] = {
386 { "luma_radius", "Radius of the luma blurring box", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
387 { "lr", "Radius of the luma blurring box", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
388 { "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 },
389 { "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 },
391 { "chroma_radius", "Radius of the chroma blurring box", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
392 { "cr", "Radius of the chroma blurring box", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
393 { "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 },
394 { "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 },
396 { "alpha_radius", "Radius of the alpha blurring box", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
397 { "ar", "Radius of the alpha blurring box", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
398 { "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 },
399 { "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 },
404 AVFILTER_DEFINE_CLASS(boxblur_opencl);
406 AVFilter ff_vf_boxblur_opencl = {
407 .name = "boxblur_opencl",
408 .description = NULL_IF_CONFIG_SMALL("Apply boxblur filter to input video"),
409 .priv_size = sizeof(AverageBlurOpenCLContext),
410 .priv_class = &boxblur_opencl_class,
411 .init = &ff_opencl_filter_init,
412 .uninit = &avgblur_opencl_uninit,
413 .query_formats = &ff_opencl_filter_query_formats,
414 .inputs = avgblur_opencl_inputs,
415 .outputs = avgblur_opencl_outputs,
416 .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
419 #endif /* CONFIG_BOXBLUR_OPENCL_FILTER */