This source file includes following definitions.
- avgblur_opencl_init
- avgblur_opencl_make_filter_params
- boxblur_opencl_make_filter_params
- avgblur_opencl_filter_frame
- avgblur_opencl_uninit
#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
#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