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deshake_opencl.c
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1 /*
2  * Copyright (C) 2013 Wei Gao <weigao@multicorewareinc.com>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 /**
22  * @file
23  * transform input video
24  */
25 
26 #include "libavutil/common.h"
27 #include "libavutil/dict.h"
28 #include "libavutil/pixdesc.h"
29 #include "deshake_opencl.h"
30 #include "libavutil/opencl_internal.h"
31 
32 #define MATRIX_SIZE 6
33 #define PLANE_NUM 3
34 
35 int ff_opencl_transform(AVFilterContext *ctx,
36  int width, int height, int cw, int ch,
37  const float *matrix_y, const float *matrix_uv,
38  enum InterpolateMethod interpolate,
39  enum FillMethod fill, AVFrame *in, AVFrame *out)
40 {
41  int ret = 0;
42  const size_t global_work_size = width * height + 2 * ch * cw;
43  cl_int status;
44  DeshakeContext *deshake = ctx->priv;
45  FFOpenclParam opencl_param = {0};
46 
47  opencl_param.ctx = ctx;
48  opencl_param.kernel = deshake->opencl_ctx.kernel_env.kernel;
49  ret = av_opencl_buffer_write(deshake->opencl_ctx.cl_matrix_y, (uint8_t *)matrix_y, deshake->opencl_ctx.matrix_size * sizeof(cl_float));
50  if (ret < 0)
51  return ret;
52  ret = av_opencl_buffer_write(deshake->opencl_ctx.cl_matrix_uv, (uint8_t *)matrix_uv, deshake->opencl_ctx.matrix_size * sizeof(cl_float));
53  if (ret < 0)
54  return ret;
55 
56  if ((unsigned int)interpolate > INTERPOLATE_BIQUADRATIC) {
57  av_log(ctx, AV_LOG_ERROR, "Selected interpolate method is invalid\n");
58  return AVERROR(EINVAL);
59  }
60  ret = ff_opencl_set_parameter(&opencl_param,
61  FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_inbuf),
62  FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_outbuf),
63  FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_matrix_y),
64  FF_OPENCL_PARAM_INFO(deshake->opencl_ctx.cl_matrix_uv),
65  FF_OPENCL_PARAM_INFO(interpolate),
66  FF_OPENCL_PARAM_INFO(fill),
67  FF_OPENCL_PARAM_INFO(in->linesize[0]),
68  FF_OPENCL_PARAM_INFO(out->linesize[0]),
69  FF_OPENCL_PARAM_INFO(in->linesize[1]),
70  FF_OPENCL_PARAM_INFO(out->linesize[1]),
71  FF_OPENCL_PARAM_INFO(height),
72  FF_OPENCL_PARAM_INFO(width),
73  FF_OPENCL_PARAM_INFO(ch),
74  FF_OPENCL_PARAM_INFO(cw),
75  NULL);
76  if (ret < 0)
77  return ret;
78  status = clEnqueueNDRangeKernel(deshake->opencl_ctx.kernel_env.command_queue,
79  deshake->opencl_ctx.kernel_env.kernel, 1, NULL,
80  &global_work_size, NULL, 0, NULL, NULL);
81  if (status != CL_SUCCESS) {
82  av_log(ctx, AV_LOG_ERROR, "OpenCL run kernel error occurred: %s\n", av_opencl_errstr(status));
83  return AVERROR_EXTERNAL;
84  }
85  clFinish(deshake->opencl_ctx.kernel_env.command_queue);
86  ret = av_opencl_buffer_read_image(out->data, deshake->opencl_ctx.out_plane_size,
87  deshake->opencl_ctx.plane_num, deshake->opencl_ctx.cl_outbuf,
88  deshake->opencl_ctx.cl_outbuf_size);
89  if (ret < 0)
90  return ret;
91  return ret;
92 }
93 
94 int ff_opencl_deshake_init(AVFilterContext *ctx)
95 {
96  int ret = 0;
97  DeshakeContext *deshake = ctx->priv;
98  ret = av_opencl_init(NULL);
99  if (ret < 0)
100  return ret;
101  deshake->opencl_ctx.matrix_size = MATRIX_SIZE;
102  deshake->opencl_ctx.plane_num = PLANE_NUM;
103  ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_matrix_y,
104  deshake->opencl_ctx.matrix_size*sizeof(cl_float), CL_MEM_READ_ONLY, NULL);
105  if (ret < 0)
106  return ret;
107  ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_matrix_uv,
108  deshake->opencl_ctx.matrix_size*sizeof(cl_float), CL_MEM_READ_ONLY, NULL);
109  if (ret < 0)
110  return ret;
111  if (!deshake->opencl_ctx.kernel_env.kernel) {
112  ret = av_opencl_create_kernel(&deshake->opencl_ctx.kernel_env, "avfilter_transform");
113  if (ret < 0) {
114  av_log(ctx, AV_LOG_ERROR, "OpenCL failed to create kernel for name 'avfilter_transform'\n");
115  return ret;
116  }
117  }
118  return ret;
119 }
120 
121 void ff_opencl_deshake_uninit(AVFilterContext *ctx)
122 {
123  DeshakeContext *deshake = ctx->priv;
124  av_opencl_buffer_release(&deshake->opencl_ctx.cl_inbuf);
125  av_opencl_buffer_release(&deshake->opencl_ctx.cl_outbuf);
126  av_opencl_buffer_release(&deshake->opencl_ctx.cl_matrix_y);
127  av_opencl_buffer_release(&deshake->opencl_ctx.cl_matrix_uv);
128  av_opencl_release_kernel(&deshake->opencl_ctx.kernel_env);
129  av_opencl_uninit();
130 }
131 
132 
133 int ff_opencl_deshake_process_inout_buf(AVFilterContext *ctx, AVFrame *in, AVFrame *out)
134 {
135  int ret = 0;
136  AVFilterLink *link = ctx->inputs[0];
137  DeshakeContext *deshake = ctx->priv;
138  const int hshift = av_pix_fmt_desc_get(link->format)->log2_chroma_h;
139  int chroma_height = FF_CEIL_RSHIFT(link->h, hshift);
140 
141  if ((!deshake->opencl_ctx.cl_inbuf) || (!deshake->opencl_ctx.cl_outbuf)) {
142  deshake->opencl_ctx.in_plane_size[0] = (in->linesize[0] * in->height);
143  deshake->opencl_ctx.in_plane_size[1] = (in->linesize[1] * chroma_height);
144  deshake->opencl_ctx.in_plane_size[2] = (in->linesize[2] * chroma_height);
145  deshake->opencl_ctx.out_plane_size[0] = (out->linesize[0] * out->height);
146  deshake->opencl_ctx.out_plane_size[1] = (out->linesize[1] * chroma_height);
147  deshake->opencl_ctx.out_plane_size[2] = (out->linesize[2] * chroma_height);
148  deshake->opencl_ctx.cl_inbuf_size = deshake->opencl_ctx.in_plane_size[0] +
149  deshake->opencl_ctx.in_plane_size[1] +
150  deshake->opencl_ctx.in_plane_size[2];
151  deshake->opencl_ctx.cl_outbuf_size = deshake->opencl_ctx.out_plane_size[0] +
152  deshake->opencl_ctx.out_plane_size[1] +
153  deshake->opencl_ctx.out_plane_size[2];
154  if (!deshake->opencl_ctx.cl_inbuf) {
155  ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_inbuf,
156  deshake->opencl_ctx.cl_inbuf_size,
157  CL_MEM_READ_ONLY, NULL);
158  if (ret < 0)
159  return ret;
160  }
161  if (!deshake->opencl_ctx.cl_outbuf) {
162  ret = av_opencl_buffer_create(&deshake->opencl_ctx.cl_outbuf,
163  deshake->opencl_ctx.cl_outbuf_size,
164  CL_MEM_READ_WRITE, NULL);
165  if (ret < 0)
166  return ret;
167  }
168  }
169  ret = av_opencl_buffer_write_image(deshake->opencl_ctx.cl_inbuf,
170  deshake->opencl_ctx.cl_inbuf_size,
171  0, in->data,deshake->opencl_ctx.in_plane_size,
172  deshake->opencl_ctx.plane_num);
173  if(ret < 0)
174  return ret;
175  return ret;
176 }
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