diff --git a/configure b/configure
index 6916b45..7c79e20 100755
--- a/configure
+++ b/configure
@@ -3212,6 +3212,7 @@ bs2b_filter_deps="libbs2b"
 colormatrix_filter_deps="gpl"
 convolve_filter_deps="avcodec"
 convolve_filter_select="fft"
+convolution_opencl_filter_deps="opencl"
 coreimage_filter_deps="coreimage appkit"
 coreimage_filter_extralibs="-framework OpenGL"
 coreimagesrc_filter_deps="coreimage appkit"
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index 6a60836..f288f8e 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -156,6 +156,8 @@ OBJS-$(CONFIG_COLORLEVELS_FILTER)            += vf_colorlevels.o
 OBJS-$(CONFIG_COLORMATRIX_FILTER)            += vf_colormatrix.o
 OBJS-$(CONFIG_COLORSPACE_FILTER)             += vf_colorspace.o colorspacedsp.o
 OBJS-$(CONFIG_CONVOLUTION_FILTER)            += vf_convolution.o
+OBJS-$(CONFIG_CONVOLUTION_OPENCL_FILTER)         += vf_convolution_opencl.o opencl.o \
+                                                opencl/convolution.o
 OBJS-$(CONFIG_CONVOLVE_FILTER)               += vf_convolve.o framesync.o
 OBJS-$(CONFIG_COPY_FILTER)                   += vf_copy.o
 OBJS-$(CONFIG_COREIMAGE_FILTER)              += vf_coreimage.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 9adb109..f2dc55e 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -166,6 +166,7 @@ static void register_all(void)
     REGISTER_FILTER(COLORMATRIX,    colormatrix,    vf);
     REGISTER_FILTER(COLORSPACE,     colorspace,     vf);
     REGISTER_FILTER(CONVOLUTION,    convolution,    vf);
+    REGISTER_FILTER(CONVOLUTION_OPENCL, convolution_opencl, vf);
     REGISTER_FILTER(CONVOLVE,       convolve,       vf);
     REGISTER_FILTER(COPY,           copy,           vf);
     REGISTER_FILTER(COREIMAGE,      coreimage,      vf);
diff --git a/libavfilter/opencl/convolution.cl b/libavfilter/opencl/convolution.cl
new file mode 100644
index 0000000..5bc5839
--- /dev/null
+++ b/libavfilter/opencl/convolution.cl
@@ -0,0 +1,80 @@
+/*
+ * 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 convolution_global(__write_only image2d_t dst,
+                                 __read_only  image2d_t src,
+                                 int coef_matrix_size,
+                                 __constant float *coef_matrix,
+                                 float div,
+                                 float bias)
+{
+    const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE | CLK_FILTER_NEAREST);
+
+    const int half_matrix_size = (coef_matrix_size / 2);
+    int2 loc = (int2)(get_global_id(0), get_global_id(1));
+    float4 convPix = (float4)(0.0f, 0.0f, 0.0f, 0.0f);
+
+    for (int conv_i = -half_matrix_size; conv_i <= half_matrix_size; conv_i++) {
+        for (int conv_j = -half_matrix_size; conv_j <= half_matrix_size; conv_j++) {
+            float4 px = read_imagef(src, sampler, loc + (int2)(conv_j, conv_i));
+            convPix += px * coef_matrix[(conv_i+1)*coef_matrix_size+(conv_j+1)];
+        }
+     }
+     write_imagef(dst, loc, convPix * div + bias);
+}
+
+__kernel void convolution_local(__write_only image2d_t dst,
+                                 __read_only  image2d_t src,
+                                 int coef_matrix_size,
+                                 __constant float *coef_matrix,
+                                 float div,
+                                 float bias)
+{
+    const sampler_t sampler = (CLK_NORMALIZED_COORDS_FALSE |
+                               CLK_ADDRESS_CLAMP_TO_EDGE |
+                               CLK_FILTER_NEAREST);
+
+    const int block_size = 16;
+
+    const int block_x = get_group_id(0) * block_size;
+    const int block_y = get_group_id(1) * block_size;
+    const int local_x  =  get_local_id(0);
+    const int local_y  =  get_local_id(1);
+    const int half_matrix_size = (coef_matrix_size / 2);
+
+    __local float4 B[16*3*16*3];
+
+    for (int i = -half_matrix_size; i <= half_matrix_size; i++) {
+            for (int j = -half_matrix_size; j <= half_matrix_size; j++) {
+                    B[((i+1)*block_size+local_x) * (block_size*coef_matrix_size) + (j+1)*block_size+local_y] =
+                        read_imagef(src, sampler, (int2)(block_x+local_y + (j*block_size), block_y+local_x + (i*block_size)));
+            }
+    }
+    barrier(CLK_LOCAL_MEM_FENCE);
+
+    float4 convPix = (float4)(0.0f, 0.0f, 0.0f, 0.0f);
+    for (int conv_i = -half_matrix_size; conv_i <= half_matrix_size; conv_i++) {
+                    for (int conv_j = -half_matrix_size; conv_j <= half_matrix_size; conv_j++) {
+                            float4 px = B[(local_x+conv_i+block_size) * (block_size*coef_matrix_size) + local_y+conv_j+block_size];
+                            convPix += px * coef_matrix[(conv_i+1)*coef_matrix_size+(conv_j+1)];
+                    }
+            }
+    barrier(CLK_LOCAL_MEM_FENCE);
+    write_imagef(dst, (int2)(block_x+local_y, block_y+local_x), convPix * div + bias);
+
+}
diff --git a/libavfilter/opencl_source.h b/libavfilter/opencl_source.h
index 23cdfc6..ac2f89e 100644
--- a/libavfilter/opencl_source.h
+++ b/libavfilter/opencl_source.h
@@ -22,4 +22,6 @@
 extern const char *ff_opencl_source_overlay;
 extern const char *ff_opencl_source_unsharp;
 
+extern const char *ff_opencl_source_convolution;
+
 #endif /* AVFILTER_OPENCL_SOURCE_H */
diff --git a/libavfilter/vf_convolution_opencl.c b/libavfilter/vf_convolution_opencl.c
new file mode 100644
index 0000000..6902062
--- /dev/null
+++ b/libavfilter/vf_convolution_opencl.c
@@ -0,0 +1,374 @@
+/*
+ * 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 "libavutil/avstring.h"
+
+
+#include "avfilter.h"
+#include "internal.h"
+#include "opencl.h"
+#include "opencl_source.h"
+#include "video.h"
+
+typedef struct ConvolutionOpenCLContext {
+    OpenCLFilterContext ocf;
+
+    int              initialised;
+    cl_kernel        kernel;
+    cl_command_queue command_queue;
+
+    char *matrix_str;
+    cl_int size;
+
+    cl_int matrix_length;
+    cl_float rdiv;
+    cl_float bias;
+    cl_mem matrix;
+
+    int global;
+
+} ConvolutionOpenCLContext;
+
+
+const float default3x3[9] = {0, 0, 0,
+                             0, 1, 0,
+                             0, 0, 0};
+
+const float default5x5[25] = {0, 0, 0, 0, 0,
+                              0, 0, 0, 0, 0,
+                              0, 0, 1, 0, 0,
+                              0, 0, 0, 0, 0,
+                              0, 0, 0, 0, 0};
+
+const float default7x7[49] = {0, 0, 0, 0, 0, 0, 0,
+                              0, 0, 0, 0, 0, 0, 0,
+                              0, 0, 0, 0, 0, 0, 0,
+                              0, 0, 0, 1, 0, 0, 0,
+                              0, 0, 0, 0, 0, 0, 0,
+                              0, 0, 0, 0, 0, 0, 0,
+                              0, 0, 0, 0, 0, 0, 0};
+
+static int convolution_opencl_init(AVFilterContext *avctx)
+{
+    ConvolutionOpenCLContext *ctx = avctx->priv;
+    cl_int cle;
+    int err;
+
+    err = ff_opencl_filter_load_program(avctx, &ff_opencl_source_convolution, 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->global = 1;
+
+    ctx->kernel = clCreateKernel(ctx->ocf.program,
+                                 ctx->global ? "convolution_global"
+                                             : "convolution_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 convolution_opencl_make_filter_params(AVFilterContext *avctx)
+{
+    ConvolutionOpenCLContext *ctx = avctx->priv;
+    float *matrix;
+    size_t matrix_bytes;
+    cl_mem buffer;
+    cl_int cle;
+    int err = 0;
+    char *p, *arg, *saveptr = NULL;
+
+    float input_matrix[49];
+    p = ctx->matrix_str;
+    while (ctx->matrix_length < 49) {
+        if (!(arg = av_strtok(p, " ", &saveptr)))
+            break;
+        p = NULL;
+        sscanf(arg, "%f", &input_matrix[ctx->matrix_length]);
+        ctx->matrix_length++;
+    }
+
+    matrix_bytes = sizeof(float)*ctx->matrix_length;
+    matrix = av_malloc(matrix_bytes);
+
+    if (ctx->matrix_length == 9) {
+        ctx->size = 3;
+        memcpy(matrix, default3x3, ctx->matrix_length);
+    } else if (ctx->matrix_length == 25) {
+            ctx->size = 5;
+            memcpy(matrix, default5x5, ctx->matrix_length);
+    } else if (ctx->matrix_length == 49) {
+            ctx->size = 7;
+            memcpy(matrix, default7x7, ctx->matrix_length);
+    } else {
+        return AVERROR(EINVAL);
+    }
+
+    for (int i = 0; i < ctx->matrix_length; i++)
+        matrix[i] = input_matrix[i];
+
+
+
+    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->matrix = buffer;
+
+    return err;
+fail:
+    av_freep(&matrix);
+    return err;
+
+
+}
+
+static int convolution_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input)
+{
+    AVFilterContext    *avctx = inlink->dst;
+    AVFilterLink     *outlink = avctx->outputs[0];
+    ConvolutionOpenCLContext *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 = convolution_opencl_init(avctx);
+        if (err < 0)
+            goto fail;
+
+        err = convolution_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->size);
+        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_mem), &ctx->matrix);
+        if (cle != CL_SUCCESS) {
+            av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
+                   "matrix argument: %d.\n", cle);
+            goto fail;
+        }
+        cle = clSetKernelArg(ctx->kernel, 4, sizeof(cl_float), &ctx->rdiv);
+        if (cle != CL_SUCCESS) {
+            av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
+                   "div argument: %d.\n", cle);
+            goto fail;
+        }
+        cle = clSetKernelArg(ctx->kernel, 5, sizeof(cl_float), &ctx->bias);
+        if (cle != CL_SUCCESS) {
+            av_log(avctx, AV_LOG_ERROR, "Failed to set kernel "
+                   "bias 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 "
+               "(%"SIZE_SPECIFIER"x%"SIZE_SPECIFIER").\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 convolution_opencl_uninit(AVFilterContext *avctx)
+{
+    ConvolutionOpenCLContext *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);
+    }
+
+    ff_opencl_filter_uninit(avctx);
+}
+
+#define OFFSET(x) offsetof(ConvolutionOpenCLContext, x)
+#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
+static const AVOption convolution_opencl_options[] = {
+    { "m",    "set matrix ",  OFFSET(matrix_str), AV_OPT_TYPE_STRING, {.str="0 0 0 0 1 0 0 0 0"}, 0, 0, FLAGS },
+    { "rdiv", "set rdiv",     OFFSET(rdiv),      AV_OPT_TYPE_FLOAT,  {.dbl=1.0}, 0.0, INT_MAX, FLAGS},
+    { "bias", "set bias",     OFFSET(bias),     AV_OPT_TYPE_FLOAT,  {.dbl=0.0}, 0.0, INT_MAX, FLAGS},
+    { NULL }
+};
+
+AVFILTER_DEFINE_CLASS(convolution_opencl);
+
+static const AVFilterPad convolution_opencl_inputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .filter_frame = &convolution_opencl_filter_frame,
+        .config_props = &ff_opencl_filter_config_input,
+    },
+    { NULL }
+};
+
+static const AVFilterPad convolution_opencl_outputs[] = {
+    {
+        .name         = "default",
+        .type         = AVMEDIA_TYPE_VIDEO,
+        .config_props = &ff_opencl_filter_config_output,
+    },
+    { NULL }
+};
+
+AVFilter ff_vf_convolution_opencl = {
+    .name           = "convolution_opencl",
+    .description    = NULL_IF_CONFIG_SMALL("Apply convolution mask to input video"),
+    .priv_size      = sizeof(ConvolutionOpenCLContext),
+    .priv_class     = &convolution_opencl_class,
+    .init           = &ff_opencl_filter_init,
+    .uninit         = &convolution_opencl_uninit,
+    .query_formats  = &ff_opencl_filter_query_formats,
+    .inputs         = convolution_opencl_inputs,
+    .outputs        = convolution_opencl_outputs,
+    .flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE,
+};
