2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 #ifndef AVFILTER_OPENCL_H
20 #define AVFILTER_OPENCL_H
22 #include "libavutil/buffer.h"
23 #include "libavutil/hwcontext.h"
24 #include "libavutil/hwcontext_opencl.h"
25 #include "libavutil/pixfmt.h"
29 typedef struct OpenCLFilterContext {
32 AVBufferRef *device_ref;
33 AVHWDeviceContext *device;
34 AVOpenCLDeviceContext *hwctx;
38 enum AVPixelFormat output_format;
41 } OpenCLFilterContext;
44 * Return that all inputs and outputs support only AV_PIX_FMT_OPENCL.
46 int ff_opencl_filter_query_formats(AVFilterContext *avctx);
49 * Check that the input link contains a suitable hardware frames
50 * context and extract the device from it.
52 int ff_opencl_filter_config_input(AVFilterLink *inlink);
55 * Create a suitable hardware frames context for the output.
57 int ff_opencl_filter_config_output(AVFilterLink *outlink);
60 * Initialise an OpenCL filter context.
62 int ff_opencl_filter_init(AVFilterContext *avctx);
65 * Uninitialise an OpenCL filter context.
67 void ff_opencl_filter_uninit(AVFilterContext *avctx);
70 * Load a new OpenCL program from strings in memory.
72 * Creates a new program and compiles it for the current device.
73 * Will log any build errors if compilation fails.
75 int ff_opencl_filter_load_program(AVFilterContext *avctx,
76 const char **program_source_array,
80 * Load a new OpenCL program from a file.
82 * Same as ff_opencl_filter_load_program(), but from a file.
84 int ff_opencl_filter_load_program_from_file(AVFilterContext *avctx,
85 const char *filename);
87 #endif /* AVFILTER_OPENCL_H */