yading@10: /*
yading@10:  * Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: /**
yading@10:  * @file
yading@10:  * transform input video
yading@10:  */
yading@10: 
yading@10: #include "libavutil/common.h"
yading@10: #include "libavutil/dict.h"
yading@10: #include "libavutil/pixdesc.h"
yading@10: #include "deshake_opencl.h"
yading@10: 
yading@10: #define MATRIX_SIZE 6
yading@10: #define PLANE_NUM 3
yading@10: 
yading@10: #define TRANSFORM_OPENCL_CHECK(method, ...)                                                                  \
yading@10:     status = method(__VA_ARGS__);                                                                            \
yading@10:     if (status != CL_SUCCESS) {                                                                              \
yading@10:         av_log(ctx, AV_LOG_ERROR, "error %s %d\n", # method, status);                                        \
yading@10:         return AVERROR_EXTERNAL;                                                                             \
yading@10:     }
yading@10: 
yading@10: #define TRANSFORM_OPENCL_SET_KERNEL_ARG(arg_ptr)                                                             \
yading@10:     status = clSetKernelArg((kernel),(arg_no++),(sizeof(arg_ptr)),(void*)(&(arg_ptr)));                      \
yading@10:     if (status != CL_SUCCESS) {                                                                              \
yading@10:         av_log(ctx, AV_LOG_ERROR, "cannot set kernel argument: %d\n", status );                              \
yading@10:         return AVERROR_EXTERNAL;                                                                             \
yading@10:     }
yading@10: 
yading@10: int ff_opencl_transform(AVFilterContext *ctx,
yading@10:                         int width, int height, int cw, int ch,
yading@10:                         const float *matrix_y, const float *matrix_uv,
yading@10:                         enum InterpolateMethod interpolate,
yading@10:                         enum FillMethod fill, AVFrame *in, AVFrame *out)
yading@10: {
yading@10:     int arg_no, ret = 0;
yading@10:     const size_t global_work_size = width * height + 2 * ch * cw;
yading@10:     cl_kernel kernel;
yading@10:     cl_int status;
yading@10:     DeshakeContext *deshake = ctx->priv;
yading@10:     ret = av_opencl_buffer_write(deshake->opencl_ctx.cl_matrix_y, (uint8_t *)matrix_y, deshake->opencl_ctx.matrix_size * sizeof(cl_float));
yading@10:     if (ret < 0)
yading@10:         return ret;
yading@10:     ret = av_opencl_buffer_write(deshake->opencl_ctx.cl_matrix_uv, (uint8_t *)matrix_uv, deshake->opencl_ctx.matrix_size * sizeof(cl_float));
yading@10:     if (ret < 0)
yading@10:         return ret;
yading@10:     kernel = deshake->opencl_ctx.kernel_env.kernel;
yading@10:     arg_no = 0;
yading@10: 
yading@10:     if ((unsigned int)interpolate > INTERPOLATE_BIQUADRATIC) {
yading@10:         av_log(ctx, AV_LOG_ERROR, "Selected interpolate method is invalid\n");
yading@10:         return AVERROR(EINVAL);
yading@10:     }
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(deshake->opencl_ctx.cl_inbuf);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(deshake->opencl_ctx.cl_outbuf);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(deshake->opencl_ctx.cl_matrix_y);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(deshake->opencl_ctx.cl_matrix_uv);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(interpolate);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(fill);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(in->linesize[0]);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(out->linesize[0]);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(in->linesize[1]);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(out->linesize[1]);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(height);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(width);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(ch);
yading@10:     TRANSFORM_OPENCL_SET_KERNEL_ARG(cw);
yading@10:     TRANSFORM_OPENCL_CHECK(clEnqueueNDRangeKernel, deshake->opencl_ctx.kernel_env.command_queue, deshake->opencl_ctx.kernel_env.kernel, 1, NULL,
yading@10:                            &global_work_size, NULL, 0, NULL, NULL);
yading@10:     clFinish(deshake->opencl_ctx.kernel_env.command_queue);
yading@10:     ret = av_opencl_buffer_read_image(out->data, deshake->opencl_ctx.out_plane_size,
yading@10:                                       deshake->opencl_ctx.plane_num, deshake->opencl_ctx.cl_outbuf,
yading@10:                                       deshake->opencl_ctx.cl_outbuf_size);
yading@10:     if (ret < 0)
yading@10:         return ret;
yading@10:     return ret;
yading@10: }
yading@10: 
yading@10: int ff_opencl_deshake_init(AVFilterContext *ctx)
yading@10: {
yading@10:     int ret = 0;
yading@10:     DeshakeContext *deshake = ctx->priv;
yading@10:     ret = av_opencl_init(NULL);
yading@10:     if (ret < 0)
yading@10:         return ret;
yading@10:     deshake->opencl_ctx.matrix_size = MATRIX_SIZE;
yading@10:     deshake->opencl_ctx.plane_num   = PLANE_NUM;
yading@10:     ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_matrix_y,
yading@10:         deshake->opencl_ctx.matrix_size*sizeof(cl_float), CL_MEM_READ_ONLY, NULL);
yading@10:     if (ret < 0)
yading@10:         return ret;
yading@10:     ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_matrix_uv,
yading@10:         deshake->opencl_ctx.matrix_size*sizeof(cl_float), CL_MEM_READ_ONLY, NULL);
yading@10:     if (ret < 0)
yading@10:         return ret;
yading@10:     if (!deshake->opencl_ctx.kernel_env.kernel) {
yading@10:         ret =  av_opencl_create_kernel(&deshake->opencl_ctx.kernel_env, "avfilter_transform");
yading@10:         if (ret < 0) {
yading@10:             av_log(ctx, AV_LOG_ERROR, "OpenCL failed to create kernel for name 'avfilter_transform'\n");
yading@10:             return ret;
yading@10:         }
yading@10:     }
yading@10:     return ret;
yading@10: }
yading@10: 
yading@10: void ff_opencl_deshake_uninit(AVFilterContext *ctx)
yading@10: {
yading@10:     DeshakeContext *deshake = ctx->priv;
yading@10:     av_opencl_buffer_release(&deshake->opencl_ctx.cl_inbuf);
yading@10:     av_opencl_buffer_release(&deshake->opencl_ctx.cl_outbuf);
yading@10:     av_opencl_buffer_release(&deshake->opencl_ctx.cl_matrix_y);
yading@10:     av_opencl_buffer_release(&deshake->opencl_ctx.cl_matrix_uv);
yading@10:     av_opencl_release_kernel(&deshake->opencl_ctx.kernel_env);
yading@10:     av_opencl_uninit();
yading@10: }
yading@10: 
yading@10: 
yading@10: int ff_opencl_deshake_process_inout_buf(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
yading@10: {
yading@10:     int ret = 0;
yading@10:     AVFilterLink *link = ctx->inputs[0];
yading@10:     DeshakeContext *deshake = ctx->priv;
yading@10:     int chroma_height = -((-link->h) >> av_pix_fmt_desc_get(link->format)->log2_chroma_h);
yading@10: 
yading@10:     if ((!deshake->opencl_ctx.cl_inbuf) || (!deshake->opencl_ctx.cl_outbuf)) {
yading@10:         deshake->opencl_ctx.in_plane_size[0]  = (in->linesize[0] * in->height);
yading@10:         deshake->opencl_ctx.in_plane_size[1]  = (in->linesize[1] * chroma_height);
yading@10:         deshake->opencl_ctx.in_plane_size[2]  = (in->linesize[2] * chroma_height);
yading@10:         deshake->opencl_ctx.out_plane_size[0] = (out->linesize[0] * out->height);
yading@10:         deshake->opencl_ctx.out_plane_size[1] = (out->linesize[1] * chroma_height);
yading@10:         deshake->opencl_ctx.out_plane_size[2] = (out->linesize[2] * chroma_height);
yading@10:         deshake->opencl_ctx.cl_inbuf_size  = deshake->opencl_ctx.in_plane_size[0] +
yading@10:                                              deshake->opencl_ctx.in_plane_size[1] +
yading@10:                                              deshake->opencl_ctx.in_plane_size[2];
yading@10:         deshake->opencl_ctx.cl_outbuf_size = deshake->opencl_ctx.out_plane_size[0] +
yading@10:                                              deshake->opencl_ctx.out_plane_size[1] +
yading@10:                                              deshake->opencl_ctx.out_plane_size[2];
yading@10:         if (!deshake->opencl_ctx.cl_inbuf) {
yading@10:             ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_inbuf,
yading@10:                                             deshake->opencl_ctx.cl_inbuf_size,
yading@10:                                             CL_MEM_READ_ONLY, NULL);
yading@10:             if (ret < 0)
yading@10:                 return ret;
yading@10:         }
yading@10:         if (!deshake->opencl_ctx.cl_outbuf) {
yading@10:             ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_outbuf,
yading@10:                                             deshake->opencl_ctx.cl_outbuf_size,
yading@10:                                             CL_MEM_READ_WRITE, NULL);
yading@10:             if (ret < 0)
yading@10:                 return ret;
yading@10:         }
yading@10:     }
yading@10:     ret = av_opencl_buffer_write_image(deshake->opencl_ctx.cl_inbuf,
yading@10:                                  deshake->opencl_ctx.cl_inbuf_size,
yading@10:                                  0, in->data,deshake->opencl_ctx.in_plane_size,
yading@10:                                  deshake->opencl_ctx.plane_num);
yading@10:     if(ret < 0)
yading@10:         return ret;
yading@10:     return ret;
yading@10: }