static int filter_frame(AVFilterLink *link, AVFrame *input_frame)
{
AVFilterContext *avctx = link->dst;
AVFilterLink *outlink = avctx->outputs[0];
ColorkeyOpenCLContext *colorkey_ctx = avctx->priv;
AVFrame *output_frame = NULL;
int err;
cl_int cle;
size_t global_work[2];
cl_mem src, dst;
if (!input_frame->hw_frames_ctx)
return AVERROR(EINVAL);
if (!colorkey_ctx->initialized) {
AVHWFramesContext *input_frames_ctx =
(AVHWFramesContext*)input_frame->hw_frames_ctx->data;
int fmt = input_frames_ctx->sw_format;
// Make sure the input is a format we support
if (fmt != AV_PIX_FMT_ARGB &&
fmt != AV_PIX_FMT_RGBA &&
fmt != AV_PIX_FMT_ABGR &&
fmt != AV_PIX_FMT_BGRA
) {
av_log(avctx, AV_LOG_ERROR, "unsupported (non-RGB) format in colorkey_opencl.\n");
err = AVERROR(ENOSYS);
goto fail;
}
err = colorkey_opencl_init(avctx);
if (err < 0)
goto fail;
}
// This filter only operates on RGB data and we know that will be on the first plane
src = (cl_mem)input_frame->data[0];
output_frame = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!output_frame) {
err = AVERROR(ENOMEM);
goto fail;
}
dst = (cl_mem)output_frame->data[0];
CL_SET_KERNEL_ARG(colorkey_ctx->kernel_colorkey, 0, cl_mem, &src);
CL_SET_KERNEL_ARG(colorkey_ctx->kernel_colorkey, 1, cl_mem, &dst);
CL_SET_KERNEL_ARG(colorkey_ctx->kernel_colorkey, 2, cl_float4, &colorkey_ctx->colorkey_rgba_float);
CL_SET_KERNEL_ARG(colorkey_ctx->kernel_colorkey, 3, float, &colorkey_ctx->similarity);
if (colorkey_ctx->blend > 0.0001) {
CL_SET_KERNEL_ARG(colorkey_ctx->kernel_colorkey, 4, float, &colorkey_ctx->blend);
}
static int neighbor_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input)
{
AVFilterContext *avctx = inlink->dst;
AVFilterLink *outlink = avctx->outputs[0];
NeighborOpenCLContext *ctx = avctx->priv;
AVFrame *output = NULL;
cl_int cle;
size_t global_work[2];
cl_mem src, dst;
int err, p;
size_t origin[3] = {0, 0, 0};
size_t region[3] = {0, 0, 1};
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 = neighbor_opencl_init(avctx);
if (err < 0)
goto fail;
err = neighbor_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;
if (ctx->threshold[p] == 0) {
err = ff_opencl_filter_work_size_from_image(avctx, region, output, p, 0);
if (err < 0)
goto fail;
cle = clEnqueueCopyImage(ctx->command_queue, src, dst,
origin, origin, region, 0, NULL, NULL);
CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to copy plane %d: %d.\n",
p, cle);
} else {
CL_SET_KERNEL_ARG(ctx->kernel, 0, cl_mem, &dst);
CL_SET_KERNEL_ARG(ctx->kernel, 1, cl_mem, &src);
CL_SET_KERNEL_ARG(ctx->kernel, 2, cl_float, &ctx->threshold[p]);
CL_SET_KERNEL_ARG(ctx->kernel, 3, cl_mem, &ctx->coord);
err = ff_opencl_filter_work_size_from_image(avctx, global_work, 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, 2, NULL,
global_work, NULL,
0, NULL, NULL);
CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to enqueue "
"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_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 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];
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;
CL_SET_KERNEL_ARG(ctx->kernel, 0, cl_mem, &dst);
CL_SET_KERNEL_ARG(ctx->kernel, 1, cl_mem, &src);
CL_SET_KERNEL_ARG(ctx->kernel, 2, cl_int, &ctx->dims[p]);
CL_SET_KERNEL_ARG(ctx->kernel, 3, cl_mem, &ctx->matrix[p]);
CL_SET_KERNEL_ARG(ctx->kernel, 4, cl_float, &ctx->rdivs[p]);
CL_SET_KERNEL_ARG(ctx->kernel, 5, cl_float, &ctx->biases[p]);
err = ff_opencl_filter_work_size_from_image(avctx, global_work, 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, 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;
}
