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FFmpeg/libavfilter/deshake_opencl.c
Lenny Wang d943330dc0 lavfi/deshake_opencl: optimze transform filter 
Reviewed-by: Wei Gao <highgod0401@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-12-19 13:31:31 +01:00

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/*
* Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
* Copyright (C) 2013 Lenny Wang
*
* 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"
#include "libavutil/opencl_internal.h"
#define PLANE_NUM 3
#define ROUND_TO_16(a) ((((a - 1)/16)+1)*16)
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 ret = 0;
cl_int status;
DeshakeContext *deshake = ctx->priv;
float4 packed_matrix_lu = {matrix_y[0], matrix_y[1], matrix_y[2], matrix_y[5]};
float4 packed_matrix_ch = {matrix_uv[0], matrix_uv[1], matrix_uv[2], matrix_uv[5]};
size_t global_worksize_lu[2] = {(size_t)ROUND_TO_16(width), (size_t)ROUND_TO_16(height)};
size_t global_worksize_ch[2] = {(size_t)ROUND_TO_16(cw), (size_t)(2*ROUND_TO_16(ch))};
size_t local_worksize[2] = {16, 16};
FFOpenclParam param_lu = {0};
FFOpenclParam param_ch = {0};
param_lu.ctx = param_ch.ctx = ctx;
param_lu.kernel = deshake->opencl_ctx.kernel_luma;
param_ch.kernel = deshake->opencl_ctx.kernel_chroma;
if ((unsigned int)interpolate > INTERPOLATE_BIQUADRATIC) {
av_log(ctx, AV_LOG_ERROR, "Selected interpolate method is invalid\n");
return AVERROR(EINVAL);
}
ret = ff_opencl_set_parameter(&param_lu,
FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_inbuf),
FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_outbuf),
FF_OPENCL_PARAM_INFO(packed_matrix_lu),
FF_OPENCL_PARAM_INFO(interpolate),
FF_OPENCL_PARAM_INFO(fill),
FF_OPENCL_PARAM_INFO(in->linesize[0]),
FF_OPENCL_PARAM_INFO(out->linesize[0]),
FF_OPENCL_PARAM_INFO(height),
FF_OPENCL_PARAM_INFO(width),
NULL);
if (ret < 0)
return ret;
ret = ff_opencl_set_parameter(&param_ch,
FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_inbuf),
FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_outbuf),
FF_OPENCL_PARAM_INFO(packed_matrix_ch),
FF_OPENCL_PARAM_INFO(interpolate),
FF_OPENCL_PARAM_INFO(fill),
FF_OPENCL_PARAM_INFO(in->linesize[0]),
FF_OPENCL_PARAM_INFO(out->linesize[0]),
FF_OPENCL_PARAM_INFO(in->linesize[1]),
FF_OPENCL_PARAM_INFO(out->linesize[1]),
FF_OPENCL_PARAM_INFO(height),
FF_OPENCL_PARAM_INFO(width),
FF_OPENCL_PARAM_INFO(ch),
FF_OPENCL_PARAM_INFO(cw),
NULL);
if (ret < 0)
return ret;
status = clEnqueueNDRangeKernel(deshake->opencl_ctx.command_queue,
deshake->opencl_ctx.kernel_luma, 2, NULL,
global_worksize_lu, local_worksize, 0, NULL, NULL);
status |= clEnqueueNDRangeKernel(deshake->opencl_ctx.command_queue,
deshake->opencl_ctx.kernel_chroma, 2, NULL,
global_worksize_ch, local_worksize, 0, NULL, NULL);
if (status != CL_SUCCESS) {
av_log(ctx, AV_LOG_ERROR, "OpenCL run kernel error occurred: %s\n", av_opencl_errstr(status));
return AVERROR_EXTERNAL;
}
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.plane_num = PLANE_NUM;
deshake->opencl_ctx.command_queue = av_opencl_get_command_queue();
if (!deshake->opencl_ctx.command_queue) {
av_log(ctx, AV_LOG_ERROR, "Unable to get OpenCL command queue in filter 'deshake'\n");
return AVERROR(EINVAL);
}
deshake->opencl_ctx.program = av_opencl_compile("avfilter_transform", NULL);
if (!deshake->opencl_ctx.program) {
av_log(ctx, AV_LOG_ERROR, "OpenCL failed to compile program 'avfilter_transform'\n");
return AVERROR(EINVAL);
}
if (!deshake->opencl_ctx.kernel_luma) {
deshake->opencl_ctx.kernel_luma = clCreateKernel(deshake->opencl_ctx.program,
"avfilter_transform_luma", &ret);
if (ret != CL_SUCCESS) {
av_log(ctx, AV_LOG_ERROR, "OpenCL failed to create kernel 'avfilter_transform_luma'\n");
return AVERROR(EINVAL);
}
}
if (!deshake->opencl_ctx.kernel_chroma) {
deshake->opencl_ctx.kernel_chroma = clCreateKernel(deshake->opencl_ctx.program,
"avfilter_transform_chroma", &ret);
if (ret != CL_SUCCESS) {
av_log(ctx, AV_LOG_ERROR, "OpenCL failed to create kernel 'avfilter_transform_chroma'\n");
return AVERROR(EINVAL);
}
}
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);
clReleaseKernel(deshake->opencl_ctx.kernel_luma);
clReleaseKernel(deshake->opencl_ctx.kernel_chroma);
clReleaseProgram(deshake->opencl_ctx.program);
deshake->opencl_ctx.command_queue = NULL;
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;
const int hshift = av_pix_fmt_desc_get(link->format)->log2_chroma_h;
int chroma_height = FF_CEIL_RSHIFT(link->h, hshift);
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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