From 90793591417f29302e97dbd9823481423eabdacc Mon Sep 17 00:00:00 2001 From: highgod0401 Date: Tue, 2 Apr 2013 20:54:22 +0800 Subject: deshake opencl based on comments on 20130402 3rd Signed-off-by: Michael Niedermayer --- libavfilter/deshake_opencl.c | 181 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 181 insertions(+) create mode 100644 libavfilter/deshake_opencl.c (limited to 'libavfilter/deshake_opencl.c') diff --git a/libavfilter/deshake_opencl.c b/libavfilter/deshake_opencl.c new file mode 100644 index 0000000..63d144a --- /dev/null +++ b/libavfilter/deshake_opencl.c @@ -0,0 +1,181 @@ +/* + * Copyright (C) 2013 Wei Gao + * + * 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; + AVDictionary *options = NULL; + av_dict_set(&options, "build_options", "-I.", 0); + ret = av_opencl_init(options, NULL); + av_dict_free(&options); + 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; +} -- cgit v1.1