diff options
Diffstat (limited to 'libavfilter/unsharp_opencl.c')
| -rw-r--r-- | libavfilter/unsharp_opencl.c | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/libavfilter/unsharp_opencl.c b/libavfilter/unsharp_opencl.c new file mode 100644 index 0000000000..b373b66116 --- /dev/null +++ b/libavfilter/unsharp_opencl.c @@ -0,0 +1,283 @@ +/* + * 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); +} |