pngdec: decode and expose iCCP chunks as side data
[ffmpeg.git] / libavcodec / vaapi_decode.h
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 AVCODEC_VAAPI_DECODE_H
20 #define AVCODEC_VAAPI_DECODE_H
21
22 #include <va/va.h>
23
24 #include "libavutil/frame.h"
25 #include "libavutil/hwcontext.h"
26 #include "libavutil/hwcontext_vaapi.h"
27
28 #include "avcodec.h"
29
30 #include "version.h"
31 #if FF_API_STRUCT_VAAPI_CONTEXT
32 #include "vaapi.h"
33 #endif
34
35 static inline VASurfaceID ff_vaapi_get_surface_id(AVFrame *pic)
36 {
37     return (uintptr_t)pic->data[3];
38 }
39
40 enum {
41     MAX_PARAM_BUFFERS = 16,
42 };
43
44 typedef struct VAAPIDecodePicture {
45     VASurfaceID           output_surface;
46
47     int                nb_param_buffers;
48     VABufferID            param_buffers[MAX_PARAM_BUFFERS];
49
50     int                nb_slices;
51     VABufferID           *slice_buffers;
52     int                   slices_allocated;
53 } VAAPIDecodePicture;
54
55 typedef struct VAAPIDecodeContext {
56     VAProfile             va_profile;
57     VAEntrypoint          va_entrypoint;
58     VAConfigID            va_config;
59     VAContextID           va_context;
60
61 #if FF_API_STRUCT_VAAPI_CONTEXT
62     int                   have_old_context;
63     struct vaapi_context *old_context;
64     AVBufferRef          *device_ref;
65 #endif
66
67     AVHWDeviceContext    *device;
68     AVVAAPIDeviceContext *hwctx;
69
70     AVHWFramesContext    *frames;
71     AVVAAPIFramesContext *hwfc;
72
73     enum AVPixelFormat    surface_format;
74     int                   surface_count;
75 } VAAPIDecodeContext;
76
77
78 int ff_vaapi_decode_make_param_buffer(AVCodecContext *avctx,
79                                       VAAPIDecodePicture *pic,
80                                       int type,
81                                       const void *data,
82                                       size_t size);
83
84 int ff_vaapi_decode_make_slice_buffer(AVCodecContext *avctx,
85                                       VAAPIDecodePicture *pic,
86                                       const void *params_data,
87                                       size_t params_size,
88                                       const void *slice_data,
89                                       size_t slice_size);
90
91 int ff_vaapi_decode_issue(AVCodecContext *avctx,
92                           VAAPIDecodePicture *pic);
93 int ff_vaapi_decode_cancel(AVCodecContext *avctx,
94                            VAAPIDecodePicture *pic);
95
96 int ff_vaapi_decode_init(AVCodecContext *avctx);
97 int ff_vaapi_decode_uninit(AVCodecContext *avctx);
98
99 #endif /* AVCODEC_VAAPI_DECODE_H */