mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
411 lines
14 KiB
411 lines
14 KiB
/* |
|
* 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 "filters.h" |
|
#include "opencl.h" |
|
#include "opencl_source.h" |
|
#include "video.h" |
|
|
|
#define MAX_DIAMETER 23 |
|
|
|
typedef struct UnsharpOpenCLContext { |
|
OpenCLFilterContext ocf; |
|
|
|
int initialised; |
|
cl_kernel kernel; |
|
cl_command_queue command_queue; |
|
|
|
float luma_size_x; |
|
float luma_size_y; |
|
float luma_amount; |
|
float chroma_size_x; |
|
float chroma_size_y; |
|
float chroma_amount; |
|
|
|
int global; |
|
|
|
int nb_planes; |
|
struct { |
|
float blur_x[MAX_DIAMETER]; |
|
float blur_y[MAX_DIAMETER]; |
|
|
|
cl_mem matrix; |
|
cl_mem coef_x; |
|
cl_mem coef_y; |
|
|
|
cl_int size_x; |
|
cl_int size_y; |
|
cl_float amount; |
|
cl_float threshold; |
|
} plane[AV_VIDEO_MAX_PLANES]; |
|
} UnsharpOpenCLContext; |
|
|
|
|
|
static int unsharp_opencl_init(AVFilterContext *avctx) |
|
{ |
|
UnsharpOpenCLContext *ctx = avctx->priv; |
|
cl_int cle; |
|
int err; |
|
|
|
err = ff_opencl_filter_load_program(avctx, &ff_source_unsharp_cl, 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); |
|
|
|
// Use global kernel if mask size will be too big for the local store.. |
|
ctx->global = (ctx->luma_size_x > 17.0f || |
|
ctx->luma_size_y > 17.0f || |
|
ctx->chroma_size_x > 17.0f || |
|
ctx->chroma_size_y > 17.0f); |
|
|
|
ctx->kernel = clCreateKernel(ctx->ocf.program, |
|
ctx->global ? "unsharp_global" |
|
: "unsharp_local", &cle); |
|
CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create kernel %d.\n", cle); |
|
|
|
ctx->initialised = 1; |
|
return 0; |
|
|
|
fail: |
|
if (ctx->command_queue) |
|
clReleaseCommandQueue(ctx->command_queue); |
|
if (ctx->kernel) |
|
clReleaseKernel(ctx->kernel); |
|
return err; |
|
} |
|
|
|
static int unsharp_opencl_make_filter_params(AVFilterContext *avctx) |
|
{ |
|
UnsharpOpenCLContext *ctx = avctx->priv; |
|
const AVPixFmtDescriptor *desc; |
|
float *matrix; |
|
double val, sum; |
|
cl_int cle; |
|
cl_mem buffer; |
|
size_t matrix_bytes; |
|
float diam_x, diam_y, amount; |
|
int err, p, x, y, size_x, size_y; |
|
|
|
desc = av_pix_fmt_desc_get(ctx->ocf.output_format); |
|
|
|
ctx->nb_planes = 0; |
|
for (p = 0; p < desc->nb_components; p++) |
|
ctx->nb_planes = FFMAX(ctx->nb_planes, desc->comp[p].plane + 1); |
|
|
|
for (p = 0; p < ctx->nb_planes; p++) { |
|
if (p == 0 || (desc->flags & AV_PIX_FMT_FLAG_RGB)) { |
|
diam_x = ctx->luma_size_x; |
|
diam_y = ctx->luma_size_y; |
|
amount = ctx->luma_amount; |
|
} else { |
|
diam_x = ctx->chroma_size_x; |
|
diam_y = ctx->chroma_size_y; |
|
amount = ctx->chroma_amount; |
|
} |
|
size_x = (int)ceil(diam_x) | 1; |
|
size_y = (int)ceil(diam_y) | 1; |
|
matrix_bytes = size_x * size_y * sizeof(float); |
|
|
|
matrix = av_malloc(matrix_bytes); |
|
if (!matrix) { |
|
err = AVERROR(ENOMEM); |
|
goto fail; |
|
} |
|
|
|
sum = 0.0; |
|
for (x = 0; x < size_x; x++) { |
|
double dx = (double)(x - size_x / 2) / diam_x; |
|
sum += ctx->plane[p].blur_x[x] = exp(-16.0 * (dx * dx)); |
|
} |
|
for (x = 0; x < size_x; x++) |
|
ctx->plane[p].blur_x[x] /= sum; |
|
|
|
sum = 0.0; |
|
for (y = 0; y < size_y; y++) { |
|
double dy = (double)(y - size_y / 2) / diam_y; |
|
sum += ctx->plane[p].blur_y[y] = exp(-16.0 * (dy * dy)); |
|
} |
|
for (y = 0; y < size_y; y++) |
|
ctx->plane[p].blur_y[y] /= sum; |
|
|
|
for (y = 0; y < size_y; y++) { |
|
for (x = 0; x < size_x; x++) { |
|
val = ctx->plane[p].blur_x[x] * ctx->plane[p].blur_y[y]; |
|
matrix[y * size_x + x] = val; |
|
} |
|
} |
|
|
|
if (ctx->global) { |
|
buffer = clCreateBuffer(ctx->ocf.hwctx->context, |
|
CL_MEM_READ_ONLY | |
|
CL_MEM_COPY_HOST_PTR | |
|
CL_MEM_HOST_NO_ACCESS, |
|
matrix_bytes, matrix, &cle); |
|
CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create matrix buffer: " |
|
"%d.\n", cle); |
|
ctx->plane[p].matrix = buffer; |
|
} else { |
|
buffer = clCreateBuffer(ctx->ocf.hwctx->context, |
|
CL_MEM_READ_ONLY | |
|
CL_MEM_COPY_HOST_PTR | |
|
CL_MEM_HOST_NO_ACCESS, |
|
sizeof(ctx->plane[p].blur_x), |
|
ctx->plane[p].blur_x, &cle); |
|
CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create x-coef buffer: " |
|
"%d.\n", cle); |
|
ctx->plane[p].coef_x = buffer; |
|
|
|
buffer = clCreateBuffer(ctx->ocf.hwctx->context, |
|
CL_MEM_READ_ONLY | |
|
CL_MEM_COPY_HOST_PTR | |
|
CL_MEM_HOST_NO_ACCESS, |
|
sizeof(ctx->plane[p].blur_y), |
|
ctx->plane[p].blur_y, &cle); |
|
CL_FAIL_ON_ERROR(AVERROR(EIO), "Failed to create y-coef buffer: " |
|
"%d.\n", cle); |
|
ctx->plane[p].coef_y = buffer; |
|
} |
|
|
|
av_freep(&matrix); |
|
|
|
ctx->plane[p].size_x = size_x; |
|
ctx->plane[p].size_y = size_y; |
|
ctx->plane[p].amount = amount; |
|
} |
|
|
|
err = 0; |
|
fail: |
|
av_freep(&matrix); |
|
return err; |
|
} |
|
|
|
static int unsharp_opencl_filter_frame(AVFilterLink *inlink, AVFrame *input) |
|
{ |
|
AVFilterContext *avctx = inlink->dst; |
|
AVFilterLink *outlink = avctx->outputs[0]; |
|
UnsharpOpenCLContext *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 = unsharp_opencl_init(avctx); |
|
if (err < 0) |
|
goto fail; |
|
|
|
err = unsharp_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->plane[p].size_x); |
|
CL_SET_KERNEL_ARG(ctx->kernel, 3, cl_int, &ctx->plane[p].size_y); |
|
CL_SET_KERNEL_ARG(ctx->kernel, 4, cl_float, &ctx->plane[p].amount); |
|
|
|
if (ctx->global) { |
|
CL_SET_KERNEL_ARG(ctx->kernel, 5, cl_mem, &ctx->plane[p].matrix); |
|
} else { |
|
CL_SET_KERNEL_ARG(ctx->kernel, 5, cl_mem, &ctx->plane[p].coef_x); |
|
CL_SET_KERNEL_ARG(ctx->kernel, 6, cl_mem, &ctx->plane[p].coef_y); |
|
} |
|
|
|
err = ff_opencl_filter_work_size_from_image(avctx, global_work, output, p, |
|
ctx->global ? 0 : 16); |
|
if (err < 0) |
|
goto fail; |
|
|
|
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); |
|
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 av_cold void unsharp_opencl_uninit(AVFilterContext *avctx) |
|
{ |
|
UnsharpOpenCLContext *ctx = avctx->priv; |
|
cl_int cle; |
|
int i; |
|
|
|
for (i = 0; i < ctx->nb_planes; i++) { |
|
if (ctx->plane[i].matrix) |
|
clReleaseMemObject(ctx->plane[i].matrix); |
|
if (ctx->plane[i].coef_x) |
|
clReleaseMemObject(ctx->plane[i].coef_x); |
|
if (ctx->plane[i].coef_y) |
|
clReleaseMemObject(ctx->plane[i].coef_y); |
|
} |
|
|
|
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(UnsharpOpenCLContext, x) |
|
#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM) |
|
static const AVOption unsharp_opencl_options[] = { |
|
{ "luma_msize_x", "Set luma mask horizontal diameter (pixels)", |
|
OFFSET(luma_size_x), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, |
|
{ "lx", "Set luma mask horizontal diameter (pixels)", |
|
OFFSET(luma_size_x), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, |
|
{ "luma_msize_y", "Set luma mask vertical diameter (pixels)", |
|
OFFSET(luma_size_y), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, |
|
{ "ly", "Set luma mask vertical diameter (pixels)", |
|
OFFSET(luma_size_y), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, |
|
{ "luma_amount", "Set luma amount (multiplier)", |
|
OFFSET(luma_amount), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 1.0 }, -10, 10, FLAGS }, |
|
{ "la", "Set luma amount (multiplier)", |
|
OFFSET(luma_amount), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 1.0 }, -10, 10, FLAGS }, |
|
|
|
{ "chroma_msize_x", "Set chroma mask horizontal diameter (pixels after subsampling)", |
|
OFFSET(chroma_size_x), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, |
|
{ "cx", "Set chroma mask horizontal diameter (pixels after subsampling)", |
|
OFFSET(chroma_size_x), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, |
|
{ "chroma_msize_y", "Set chroma mask vertical diameter (pixels after subsampling)", |
|
OFFSET(chroma_size_y), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, |
|
{ "cy", "Set chroma mask vertical diameter (pixels after subsampling)", |
|
OFFSET(chroma_size_y), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 5.0 }, 1, MAX_DIAMETER, FLAGS }, |
|
{ "chroma_amount", "Set chroma amount (multiplier)", |
|
OFFSET(chroma_amount), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 0.0 }, -10, 10, FLAGS }, |
|
{ "ca", "Set chroma amount (multiplier)", |
|
OFFSET(chroma_amount), AV_OPT_TYPE_FLOAT, |
|
{ .dbl = 0.0 }, -10, 10, FLAGS }, |
|
|
|
{ NULL } |
|
}; |
|
|
|
AVFILTER_DEFINE_CLASS(unsharp_opencl); |
|
|
|
static const AVFilterPad unsharp_opencl_inputs[] = { |
|
{ |
|
.name = "default", |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
.filter_frame = &unsharp_opencl_filter_frame, |
|
.config_props = &ff_opencl_filter_config_input, |
|
}, |
|
}; |
|
|
|
static const AVFilterPad unsharp_opencl_outputs[] = { |
|
{ |
|
.name = "default", |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
.config_props = &ff_opencl_filter_config_output, |
|
}, |
|
}; |
|
|
|
const AVFilter ff_vf_unsharp_opencl = { |
|
.name = "unsharp_opencl", |
|
.description = NULL_IF_CONFIG_SMALL("Apply unsharp mask to input video"), |
|
.priv_size = sizeof(UnsharpOpenCLContext), |
|
.priv_class = &unsharp_opencl_class, |
|
.init = &ff_opencl_filter_init, |
|
.uninit = &unsharp_opencl_uninit, |
|
FILTER_INPUTS(unsharp_opencl_inputs), |
|
FILTER_OUTPUTS(unsharp_opencl_outputs), |
|
FILTER_SINGLE_PIXFMT(AV_PIX_FMT_OPENCL), |
|
.flags_internal = FF_FILTER_FLAG_HWFRAME_AWARE, |
|
.flags = AVFILTER_FLAG_HWDEVICE, |
|
};
|
|
|