/* * 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 * unsharp input video */ #include "unsharp_opencl.h" #include "libavutil/common.h" #include "libavutil/opencl_internal.h" #define PLANE_NUM 3 static inline void add_mask_counter(uint32_t *dst, uint32_t *counter1, uint32_t *counter2, int len) { int i; for (i = 0; i < len; i++) { dst[i] = counter1[i] + counter2[i]; } } static int compute_mask(int step, uint32_t *mask) { int i, z, ret = 0; int counter_size = sizeof(uint32_t) * (2 * step + 1); uint32_t *temp1_counter, *temp2_counter, **counter; temp1_counter = av_mallocz(counter_size); if (!temp1_counter) { ret = AVERROR(ENOMEM); goto end; } temp2_counter = av_mallocz(counter_size); if (!temp2_counter) { ret = AVERROR(ENOMEM); goto end; } counter = av_mallocz(sizeof(uint32_t *) * (2 * step + 1)); if (!counter) { ret = AVERROR(ENOMEM); goto end; } for (i = 0; i < 2 * step + 1; i++) { counter[i] = av_mallocz(counter_size); if (!counter[i]) { ret = AVERROR(ENOMEM); goto end; } } for (i = 0; i < 2 * step + 1; i++) { memset(temp1_counter, 0, counter_size); temp1_counter[i] = 1; for (z = 0; z < step * 2; z += 2) { add_mask_counter(temp2_counter, counter[z], temp1_counter, step * 2); memcpy(counter[z], temp1_counter, counter_size); add_mask_counter(temp1_counter, counter[z + 1], temp2_counter, step * 2); memcpy(counter[z + 1], temp2_counter, counter_size); } } memcpy(mask, temp1_counter, counter_size); end: av_freep(&temp1_counter); av_freep(&temp2_counter); for (i = 0; i < 2 * step + 1; i++) { av_freep(&counter[i]); } av_freep(&counter); return ret; } static int compute_mask_matrix(cl_mem cl_mask_matrix, int step_x, int step_y) { int i, j, ret = 0; uint32_t *mask_matrix, *mask_x, *mask_y; size_t size_matrix = sizeof(uint32_t) * (2 * step_x + 1) * (2 * step_y + 1); mask_x = av_mallocz(sizeof(uint32_t) * (2 * step_x + 1)); if (!mask_x) { ret = AVERROR(ENOMEM); goto end; } mask_y = av_mallocz(sizeof(uint32_t) * (2 * step_y + 1)); if (!mask_y) { ret = AVERROR(ENOMEM); goto end; } mask_matrix = av_mallocz(size_matrix); if (!mask_matrix) { ret = AVERROR(ENOMEM); goto end; } ret = compute_mask(step_x, mask_x); if (ret < 0) goto end; ret = compute_mask(step_y, mask_y); if (ret < 0) goto end; for (j = 0; j < 2 * step_y + 1; j++) { for (i = 0; i < 2 * step_x + 1; i++) { mask_matrix[i + j * (2 * step_x + 1)] = mask_y[j] * mask_x[i]; } } ret = av_opencl_buffer_write(cl_mask_matrix, (uint8_t *)mask_matrix, size_matrix); end: av_freep(&mask_x); av_freep(&mask_y); av_freep(&mask_matrix); return ret; } static int generate_mask(AVFilterContext *ctx) { UnsharpContext *unsharp = ctx->priv; int i, ret = 0, step_x[2], step_y[2]; cl_mem mask_matrix[2]; mask_matrix[0] = unsharp->opencl_ctx.cl_luma_mask; mask_matrix[1] = unsharp->opencl_ctx.cl_chroma_mask; step_x[0] = unsharp->luma.steps_x; step_x[1] = unsharp->chroma.steps_x; step_y[0] = unsharp->luma.steps_y; step_y[1] = unsharp->chroma.steps_y; if (!mask_matrix[0] || !mask_matrix[1]) { av_log(ctx, AV_LOG_ERROR, "Luma mask and chroma mask should not be NULL\n"); return AVERROR(EINVAL); } for (i = 0; i < 2; i++) { ret = compute_mask_matrix(mask_matrix[i], step_x[i], step_y[i]); if (ret < 0) return ret; } return ret; } int ff_opencl_apply_unsharp(AVFilterContext *ctx, AVFrame *in, AVFrame *out) { int ret; AVFilterLink *link = ctx->inputs[0]; UnsharpContext *unsharp = ctx->priv; cl_int status; int cw = FF_CEIL_RSHIFT(link->w, unsharp->hsub); int ch = FF_CEIL_RSHIFT(link->h, unsharp->vsub); const size_t global_work_size = link->w * link->h + 2 * ch * cw; FFOpenclParam opencl_param = {0}; opencl_param.ctx = ctx; opencl_param.kernel = unsharp->opencl_ctx.kernel_env.kernel; ret = ff_opencl_set_parameter(&opencl_param, FF_OPENCL_PARAM_INFO(unsharp->opencl_ctx.cl_inbuf), FF_OPENCL_PARAM_INFO(unsharp->opencl_ctx.cl_outbuf), FF_OPENCL_PARAM_INFO(unsharp->opencl_ctx.cl_luma_mask), FF_OPENCL_PARAM_INFO(unsharp->opencl_ctx.cl_chroma_mask), FF_OPENCL_PARAM_INFO(unsharp->luma.amount), FF_OPENCL_PARAM_INFO(unsharp->chroma.amount), FF_OPENCL_PARAM_INFO(unsharp->luma.steps_x), FF_OPENCL_PARAM_INFO(unsharp->luma.steps_y), FF_OPENCL_PARAM_INFO(unsharp->chroma.steps_x), FF_OPENCL_PARAM_INFO(unsharp->chroma.steps_y), FF_OPENCL_PARAM_INFO(unsharp->luma.scalebits), FF_OPENCL_PARAM_INFO(unsharp->chroma.scalebits), FF_OPENCL_PARAM_INFO(unsharp->luma.halfscale), FF_OPENCL_PARAM_INFO(unsharp->chroma.halfscale), FF_OPENCL_PARAM_INFO(in->linesize[0]), FF_OPENCL_PARAM_INFO(in->linesize[1]), FF_OPENCL_PARAM_INFO(out->linesize[0]), FF_OPENCL_PARAM_INFO(out->linesize[1]), FF_OPENCL_PARAM_INFO(link->h), FF_OPENCL_PARAM_INFO(link->w), FF_OPENCL_PARAM_INFO(ch), FF_OPENCL_PARAM_INFO(cw), NULL); if (ret < 0) return ret; status = clEnqueueNDRangeKernel(unsharp->opencl_ctx.kernel_env.command_queue, unsharp->opencl_ctx.kernel_env.kernel, 1, NULL, &global_work_size, NULL, 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; } clFinish(unsharp->opencl_ctx.kernel_env.command_queue); return av_opencl_buffer_read_image(out->data, unsharp->opencl_ctx.out_plane_size, unsharp->opencl_ctx.plane_num, unsharp->opencl_ctx.cl_outbuf, unsharp->opencl_ctx.cl_outbuf_size); } int ff_opencl_unsharp_init(AVFilterContext *ctx) { int ret = 0; UnsharpContext *unsharp = ctx->priv; ret = av_opencl_init(NULL); if (ret < 0) return ret; ret = av_opencl_buffer_create(&unsharp->opencl_ctx.cl_luma_mask, sizeof(uint32_t) * (2 * unsharp->luma.steps_x + 1) * (2 * unsharp->luma.steps_y + 1), CL_MEM_READ_ONLY, NULL); if (ret < 0) return ret; ret = av_opencl_buffer_create(&unsharp->opencl_ctx.cl_chroma_mask, sizeof(uint32_t) * (2 * unsharp->chroma.steps_x + 1) * (2 * unsharp->chroma.steps_y + 1), CL_MEM_READ_ONLY, NULL); if (ret < 0) return ret; ret = generate_mask(ctx); if (ret < 0) return ret; unsharp->opencl_ctx.plane_num = PLANE_NUM; if (!unsharp->opencl_ctx.kernel_env.kernel) { ret = av_opencl_create_kernel(&unsharp->opencl_ctx.kernel_env, "unsharp"); if (ret < 0) { av_log(ctx, AV_LOG_ERROR, "OpenCL failed to create kernel with name 'unsharp'\n"); return ret; } } return ret; } void ff_opencl_unsharp_uninit(AVFilterContext *ctx) { UnsharpContext *unsharp = ctx->priv; av_opencl_buffer_release(&unsharp->opencl_ctx.cl_inbuf); av_opencl_buffer_release(&unsharp->opencl_ctx.cl_outbuf); av_opencl_buffer_release(&unsharp->opencl_ctx.cl_luma_mask); av_opencl_buffer_release(&unsharp->opencl_ctx.cl_chroma_mask); av_opencl_release_kernel(&unsharp->opencl_ctx.kernel_env); av_opencl_uninit(); } int ff_opencl_unsharp_process_inout_buf(AVFilterContext *ctx, AVFrame *in, AVFrame *out) { int ret = 0; AVFilterLink *link = ctx->inputs[0]; UnsharpContext *unsharp = ctx->priv; int ch = FF_CEIL_RSHIFT(link->h, unsharp->vsub); if ((!unsharp->opencl_ctx.cl_inbuf) || (!unsharp->opencl_ctx.cl_outbuf)) { unsharp->opencl_ctx.in_plane_size[0] = (in->linesize[0] * in->height); unsharp->opencl_ctx.in_plane_size[1] = (in->linesize[1] * ch); unsharp->opencl_ctx.in_plane_size[2] = (in->linesize[2] * ch); unsharp->opencl_ctx.out_plane_size[0] = (out->linesize[0] * out->height); unsharp->opencl_ctx.out_plane_size[1] = (out->linesize[1] * ch); unsharp->opencl_ctx.out_plane_size[2] = (out->linesize[2] * ch); unsharp->opencl_ctx.cl_inbuf_size = unsharp->opencl_ctx.in_plane_size[0] + unsharp->opencl_ctx.in_plane_size[1] + unsharp->opencl_ctx.in_plane_size[2]; unsharp->opencl_ctx.cl_outbuf_size = unsharp->opencl_ctx.out_plane_size[0] + unsharp->opencl_ctx.out_plane_size[1] + unsharp->opencl_ctx.out_plane_size[2]; if (!unsharp->opencl_ctx.cl_inbuf) { ret = av_opencl_buffer_create(&unsharp->opencl_ctx.cl_inbuf, unsharp->opencl_ctx.cl_inbuf_size, CL_MEM_READ_ONLY, NULL); if (ret < 0) return ret; } if (!unsharp->opencl_ctx.cl_outbuf) { ret = av_opencl_buffer_create(&unsharp->opencl_ctx.cl_outbuf, unsharp->opencl_ctx.cl_outbuf_size, CL_MEM_READ_WRITE, NULL); if (ret < 0) return ret; } } return av_opencl_buffer_write_image(unsharp->opencl_ctx.cl_inbuf, unsharp->opencl_ctx.cl_inbuf_size, 0, in->data, unsharp->opencl_ctx.in_plane_size, unsharp->opencl_ctx.plane_num); }