@@ -3202,6 +3202,7 @@ aresample_filter_deps="swresample"
ass_filter_deps="libass"
atempo_filter_deps="avcodec"
atempo_filter_select="rdft"
+avgblur_opencl_filter_deps="opencl"
azmq_filter_deps="libzmq"
blackframe_filter_deps="gpl"
boxblur_filter_deps="gpl"
@@ -139,6 +139,8 @@ OBJS-$(CONFIG_ALPHAMERGE_FILTER) += vf_alphamerge.o
OBJS-$(CONFIG_ASS_FILTER) += vf_subtitles.o
OBJS-$(CONFIG_ATADENOISE_FILTER) += vf_atadenoise.o
OBJS-$(CONFIG_AVGBLUR_FILTER) += vf_avgblur.o
+OBJS-$(CONFIG_AVGBLUR_OPENCL_FILTER) += vf_avgblur_opencl.o opencl.o \
+ opencl/avgblur.o
OBJS-$(CONFIG_BBOX_FILTER) += bbox.o vf_bbox.o
OBJS-$(CONFIG_BENCH_FILTER) += f_bench.o
OBJS-$(CONFIG_BITPLANENOISE_FILTER) += vf_bitplanenoise.o
@@ -149,6 +149,7 @@ static void register_all(void)
REGISTER_FILTER(ASS, ass, vf);
REGISTER_FILTER(ATADENOISE, atadenoise, vf);
REGISTER_FILTER(AVGBLUR, avgblur, vf);
+ REGISTER_FILTER(AVGBLUR_OPENCL, avgblur_opencl, vf);
REGISTER_FILTER(BBOX, bbox, vf);
REGISTER_FILTER(BENCH, bench, vf);
REGISTER_FILTER(BITPLANENOISE, bitplanenoise, vf);
new file mode 100644
@@ -0,0 +1,60 @@
+/*
+ * 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 avgblur_horiz(__write_only image2d_t dst,
+ __read_only image2d_t src,
+ int rad)
+{
+ const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE |
+ CLK_FILTER_NEAREST);
+ int2 loc = (int2)(get_global_id(0), get_global_id(1));
+ int2 size = (int2)(get_global_size(0), get_global_size(1));
+
+ int count = 0;
+ float4 acc = (float4)(0,0,0,0);
+
+ for (int xx = max(0,loc.x-rad); xx < min(loc.x+rad+1,size.x); xx++)
+ {
+ count++;
+ acc += read_imagef(src, sampler, (int2)(xx, loc.y));
+ }
+
+ write_imagef(dst, loc, acc / count);
+}
+
+__kernel void avgblur_vert(__write_only image2d_t dst,
+ __read_only image2d_t src,
+ int radv)
+{
+ const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE |
+ CLK_FILTER_NEAREST);
+ int2 loc = (int2)(get_global_id(0), get_global_id(1));
+ int2 size = (int2)(get_global_size(0), get_global_size(1));
+
+ int count = 0;
+ float4 acc = (float4)(0,0,0,0);
+
+ for (int yy = max(0,loc.y-radv); yy < min(loc.y+radv+1,size.y); yy++)
+ {
+ count++;
+ acc += read_imagef(src, sampler, (int2)(loc.x, yy));
+ }
+
+ write_imagef(dst, loc, acc / count);
+}
@@ -19,6 +19,7 @@
#ifndef AVFILTER_OPENCL_SOURCE_H
#define AVFILTER_OPENCL_SOURCE_H
+extern const char *ff_opencl_source_avgblur;
extern const char *ff_opencl_source_overlay;
extern const char *ff_opencl_source_unsharp;
new file mode 100644
@@ -0,0 +1,316 @@
+/*
+ * 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"
+
+
+typedef struct AverageBlurOpenCLContext {
+ OpenCLFilterContext ocf;
+
+ int initialised;
+ cl_kernel kernel_horiz;
+ cl_kernel kernel_vert;
+ cl_command_queue command_queue;
+
+ int radius;
+ int radiusV;
+ int planes;
+
+} 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);
+ 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_horiz = clCreateKernel(ctx->ocf.program,"avgblur_horiz", &cle);
+ if (!ctx->kernel_horiz) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle);
+ err = AVERROR(EIO);
+ goto fail;
+ }
+
+ ctx->kernel_vert = clCreateKernel(ctx->ocf.program,"avgblur_vert", &cle);
+ if (!ctx->kernel_vert) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to create kernel: %d.\n", cle);
+ err = AVERROR(EIO);
+ goto fail;
+ }
+
+ if (ctx->radiusV <= 0) {
+ ctx->radiusV = ctx->radius;
+ }
+
+ 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_filter_frame(AVFilterLink *inlink, AVFrame *input)
+{
+ AVFilterContext *avctx = inlink->dst;
+ AVFilterLink *outlink = avctx->outputs[0];
+ AverageBlurOpenCLContext *ctx = avctx->priv;
+ AVFrame *output = NULL;
+ cl_int cle;
+ size_t global_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 = avgblur_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;
+ }
+
+ 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;
+
+ int radius_x = ctx->radius;
+ int radius_y = ctx->radiusV;
+
+ if (!(ctx->planes & (1 << p))) {
+ radius_x = 0;
+ radius_y = 0;
+ }
+
+ cle = clSetKernelArg(ctx->kernel_horiz, 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_horiz, 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_horiz, 2, sizeof(cl_int), &radius_x);
+ if (cle != CL_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
+ "sizeX argument: %d.\n", cle);
+ goto fail;
+ }
+
+ global_work[0] = output->width;
+ global_work[1] = output->height;
+
+ 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);
+ if (cle != CL_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to enqueue kernel: %d.\n",
+ cle);
+ err = AVERROR(EIO);
+ goto fail;
+ }
+
+ cle = clSetKernelArg(ctx->kernel_vert, 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_vert, 1, sizeof(cl_mem), &dst);
+ 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_vert, 2, sizeof(cl_int), &radius_y);
+ if (cle != CL_SUCCESS) {
+ av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
+ "sizeY argument: %d.\n", cle);
+ goto fail;
+ }
+
+ global_work[0] = output->width;
+ global_work[1] = output->height;
+
+ 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_vert, 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;
+ }
+
+ 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 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);
+}
+
+#define OFFSET(x) offsetof(AverageBlurOpenCLContext, x)
+#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
+static const AVOption avgblur_opencl_options[] = {
+ { "sizeX", "set horizontal size", OFFSET(radius), 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);
+
+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 }
+};
+
+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,
+};
From: drfer3 <drfer3@student.monash.edu> Behaves like the existing avgblur filter, except working on OpenCL hardware frames. Takes exactly the same options. --- configure | 1 + libavfilter/Makefile | 2 + libavfilter/allfilters.c | 1 + libavfilter/opencl/avgblur.cl | 60 ++++++++ libavfilter/opencl_source.h | 1 + libavfilter/vf_avgblur_opencl.c | 316 ++++++++++++++++++++++++++++++++++++++++ 6 files changed, 381 insertions(+) create mode 100644 libavfilter/opencl/avgblur.cl create mode 100644 libavfilter/vf_avgblur_opencl.c