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1 /*
2  * This file is part of FFmpeg.
3  *
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.
8  *
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.
13  *
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
17  */
18 
19 #ifndef AVFILTER_VAAPI_VPP_H
20 #define AVFILTER_VAAPI_VPP_H
21 
22 #include <va/va.h>
23 #include <va/va_vpp.h>
24 
25 #include "libavutil/hwcontext.h"
26 #include "libavutil/hwcontext_vaapi.h"
27 
28 #include "avfilter.h"
29 
30 // ARGB black, for VAProcPipelineParameterBuffer.output_background_color.
31 #define VAAPI_VPP_BACKGROUND_BLACK 0xff000000
32 
33 typedef struct VAAPIVPPContext {
34     const AVClass *class;
35 
36     AVVAAPIDeviceContext *hwctx;
37     AVBufferRef *device_ref;
38 
39     int valid_ids;
40     VAConfigID  va_config;
41     VAContextID va_context;
42 
43     AVBufferRef       *input_frames_ref;
44     AVHWFramesContext *input_frames;
45     VARectangle        input_region;
46 
47     enum AVPixelFormat output_format;
48     int output_width;   // computed width
49     int output_height;  // computed height
50 
51     VABufferID         filter_buffers[VAProcFilterCount];
52     int                nb_filter_buffers;
53 
54     int (*build_filter_params)(AVFilterContext *avctx);
55 
56     void (*pipeline_uninit)(AVFilterContext *avctx);
57 } VAAPIVPPContext;
58 
59 void ff_vaapi_vpp_ctx_init(AVFilterContext *avctx);
60 
61 void ff_vaapi_vpp_ctx_uninit(AVFilterContext *avctx);
62 
63 int ff_vaapi_vpp_query_formats(AVFilterContext *avctx);
64 
65 void ff_vaapi_vpp_pipeline_uninit(AVFilterContext *avctx);
66 
67 int ff_vaapi_vpp_config_input(AVFilterLink *inlink);
68 
69 int ff_vaapi_vpp_config_output(AVFilterLink *outlink);
70 
71 int ff_vaapi_vpp_init_params(AVFilterContext *avctx,
72                              VAProcPipelineParameterBuffer *params,
73                              const AVFrame *input_frame,
74                              AVFrame *output_frame);
75 
76 int ff_vaapi_vpp_make_param_buffers(AVFilterContext *avctx,
77                                     int type,
78                                     const void *data,
79                                     size_t size,
80                                     int count);
81 
82 int ff_vaapi_vpp_render_picture(AVFilterContext *avctx,
83                                 VAProcPipelineParameterBuffer *params,
84                                 AVFrame *output_frame);
85 
86 #endif /* AVFILTER_VAAPI_VPP_H */
87