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/*
* Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
*
* 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
*/
/**
* @file
* transform input video
*/
#include "libavutil/common.h"
#include "libavutil/dict.h"
#include "libavutil/pixdesc.h"
#include "deshake_opencl.h"
#define MATRIX_SIZE 6
#define PLANE_NUM 3
#define TRANSFORM_OPENCL_CHECK(method, ...) \
status = method(__VA_ARGS__); \
if (status != CL_SUCCESS) { \
av_log(ctx, AV_LOG_ERROR, "error %s %d\n", # method, status); \
return AVERROR_EXTERNAL; \
}
#define TRANSFORM_OPENCL_SET_KERNEL_ARG(arg_ptr) \
status = clSetKernelArg((kernel),(arg_no++),(sizeof(arg_ptr)),(void*)(&(arg_ptr))); \
if (status != CL_SUCCESS) { \
av_log(ctx, AV_LOG_ERROR, "cannot set kernel argument: %d\n", status ); \
return AVERROR_EXTERNAL; \
}
int ff_opencl_transform(AVFilterContext *ctx,
int width, int height, int cw, int ch,
const float *matrix_y, const float *matrix_uv,
enum InterpolateMethod interpolate,
enum FillMethod fill, AVFrame *in, AVFrame *out)
{
int arg_no, ret = 0;
const size_t global_work_size = width * height + 2 * ch * cw;
cl_kernel kernel;
cl_int status;
DeshakeContext *deshake = ctx->priv;
ret = av_opencl_buffer_write(deshake->opencl_ctx.cl_matrix_y, (uint8_t *)matrix_y, deshake->opencl_ctx.matrix_size * sizeof(cl_float));
if (ret < 0)
return ret;
ret = av_opencl_buffer_write(deshake->opencl_ctx.cl_matrix_uv, (uint8_t *)matrix_uv, deshake->opencl_ctx.matrix_size * sizeof(cl_float));
if (ret < 0)
return ret;
kernel = deshake->opencl_ctx.kernel_env.kernel;
arg_no = 0;
if ((unsigned int)interpolate > INTERPOLATE_BIQUADRATIC) {
av_log(ctx, AV_LOG_ERROR, "Selected interpolate method is invalid\n");
return AVERROR(EINVAL);
}
TRANSFORM_OPENCL_SET_KERNEL_ARG(deshake->opencl_ctx.cl_inbuf);
TRANSFORM_OPENCL_SET_KERNEL_ARG(deshake->opencl_ctx.cl_outbuf);
TRANSFORM_OPENCL_SET_KERNEL_ARG(deshake->opencl_ctx.cl_matrix_y);
TRANSFORM_OPENCL_SET_KERNEL_ARG(deshake->opencl_ctx.cl_matrix_uv);
TRANSFORM_OPENCL_SET_KERNEL_ARG(interpolate);
TRANSFORM_OPENCL_SET_KERNEL_ARG(fill);
TRANSFORM_OPENCL_SET_KERNEL_ARG(in->linesize[0]);
TRANSFORM_OPENCL_SET_KERNEL_ARG(out->linesize[0]);
TRANSFORM_OPENCL_SET_KERNEL_ARG(in->linesize[1]);
TRANSFORM_OPENCL_SET_KERNEL_ARG(out->linesize[1]);
TRANSFORM_OPENCL_SET_KERNEL_ARG(height);
TRANSFORM_OPENCL_SET_KERNEL_ARG(width);
TRANSFORM_OPENCL_SET_KERNEL_ARG(ch);
TRANSFORM_OPENCL_SET_KERNEL_ARG(cw);
TRANSFORM_OPENCL_CHECK(clEnqueueNDRangeKernel, deshake->opencl_ctx.kernel_env.command_queue, deshake->opencl_ctx.kernel_env.kernel, 1, NULL,
&global_work_size, NULL, 0, NULL, NULL);
clFinish(deshake->opencl_ctx.kernel_env.command_queue);
ret = av_opencl_buffer_read_image(out->data, deshake->opencl_ctx.out_plane_size,
deshake->opencl_ctx.plane_num, deshake->opencl_ctx.cl_outbuf,
deshake->opencl_ctx.cl_outbuf_size);
if (ret < 0)
return ret;
return ret;
}
int ff_opencl_deshake_init(AVFilterContext *ctx)
{
int ret = 0;
DeshakeContext *deshake = ctx->priv;
ret = av_opencl_init(NULL);
if (ret < 0)
return ret;
deshake->opencl_ctx.matrix_size = MATRIX_SIZE;
deshake->opencl_ctx.plane_num = PLANE_NUM;
ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_matrix_y,
deshake->opencl_ctx.matrix_size*sizeof(cl_float), CL_MEM_READ_ONLY, NULL);
if (ret < 0)
return ret;
ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_matrix_uv,
deshake->opencl_ctx.matrix_size*sizeof(cl_float), CL_MEM_READ_ONLY, NULL);
if (ret < 0)
return ret;
if (!deshake->opencl_ctx.kernel_env.kernel) {
ret = av_opencl_create_kernel(&deshake->opencl_ctx.kernel_env, "avfilter_transform");
if (ret < 0) {
av_log(ctx, AV_LOG_ERROR, "OpenCL failed to create kernel for name 'avfilter_transform'\n");
return ret;
}
}
return ret;
}
void ff_opencl_deshake_uninit(AVFilterContext *ctx)
{
DeshakeContext *deshake = ctx->priv;
av_opencl_buffer_release(&deshake->opencl_ctx.cl_inbuf);
av_opencl_buffer_release(&deshake->opencl_ctx.cl_outbuf);
av_opencl_buffer_release(&deshake->opencl_ctx.cl_matrix_y);
av_opencl_buffer_release(&deshake->opencl_ctx.cl_matrix_uv);
av_opencl_release_kernel(&deshake->opencl_ctx.kernel_env);
av_opencl_uninit();
}
int ff_opencl_deshake_process_inout_buf(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
{
int ret = 0;
AVFilterLink *link = ctx->inputs[0];
DeshakeContext *deshake = ctx->priv;
int chroma_height = -((-link->h) >> av_pix_fmt_desc_get(link->format)->log2_chroma_h);
if ((!deshake->opencl_ctx.cl_inbuf) || (!deshake->opencl_ctx.cl_outbuf)) {
deshake->opencl_ctx.in_plane_size[0] = (in->linesize[0] * in->height);
deshake->opencl_ctx.in_plane_size[1] = (in->linesize[1] * chroma_height);
deshake->opencl_ctx.in_plane_size[2] = (in->linesize[2] * chroma_height);
deshake->opencl_ctx.out_plane_size[0] = (out->linesize[0] * out->height);
deshake->opencl_ctx.out_plane_size[1] = (out->linesize[1] * chroma_height);
deshake->opencl_ctx.out_plane_size[2] = (out->linesize[2] * chroma_height);
deshake->opencl_ctx.cl_inbuf_size = deshake->opencl_ctx.in_plane_size[0] +
deshake->opencl_ctx.in_plane_size[1] +
deshake->opencl_ctx.in_plane_size[2];
deshake->opencl_ctx.cl_outbuf_size = deshake->opencl_ctx.out_plane_size[0] +
deshake->opencl_ctx.out_plane_size[1] +
deshake->opencl_ctx.out_plane_size[2];
if (!deshake->opencl_ctx.cl_inbuf) {
ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_inbuf,
deshake->opencl_ctx.cl_inbuf_size,
CL_MEM_READ_ONLY, NULL);
if (ret < 0)
return ret;
}
if (!deshake->opencl_ctx.cl_outbuf) {
ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_outbuf,
deshake->opencl_ctx.cl_outbuf_size,
CL_MEM_READ_WRITE, NULL);
if (ret < 0)
return ret;
}
}
ret = av_opencl_buffer_write_image(deshake->opencl_ctx.cl_inbuf,
deshake->opencl_ctx.cl_inbuf_size,
0, in->data,deshake->opencl_ctx.in_plane_size,
deshake->opencl_ctx.plane_num);
if(ret < 0)
return ret;
return ret;
}
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