lavc: Rewrite VAAPI decode infrastructure
[libav.git] / libavcodec / vaapi_decode.h
1 /*
2 * This file is part of Libav.
3 *
4 * Libav 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 * Libav 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 Libav; 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 #include "vaapi.h"
30
31 static inline VASurfaceID ff_vaapi_get_surface_id(AVFrame *pic)
32 {
33 return (uintptr_t)pic->data[3];
34 }
35
36 enum {
37 MAX_PARAM_BUFFERS = 16,
38 };
39
40 typedef struct VAAPIDecodePicture {
41 VASurfaceID output_surface;
42
43 int nb_param_buffers;
44 VABufferID param_buffers[MAX_PARAM_BUFFERS];
45
46 int nb_slices;
47 VABufferID *slice_buffers;
48 int slices_allocated;
49 } VAAPIDecodePicture;
50
51 typedef struct VAAPIDecodeContext {
52 VAProfile va_profile;
53 VAEntrypoint va_entrypoint;
54 VAConfigID va_config;
55 VAContextID va_context;
56
57 int have_old_context;
58 struct vaapi_context *old_context;
59 AVBufferRef *device_ref;
60
61 AVHWDeviceContext *device;
62 AVVAAPIDeviceContext *hwctx;
63
64 AVHWFramesContext *frames;
65 AVVAAPIFramesContext *hwfc;
66 } VAAPIDecodeContext;
67
68
69 int ff_vaapi_decode_make_param_buffer(AVCodecContext *avctx,
70 VAAPIDecodePicture *pic,
71 int type,
72 const void *data,
73 size_t size);
74
75 int ff_vaapi_decode_make_slice_buffer(AVCodecContext *avctx,
76 VAAPIDecodePicture *pic,
77 const void *params_data,
78 size_t params_size,
79 const void *slice_data,
80 size_t slice_size);
81
82 int ff_vaapi_decode_issue(AVCodecContext *avctx,
83 VAAPIDecodePicture *pic);
84 int ff_vaapi_decode_cancel(AVCodecContext *avctx,
85 VAAPIDecodePicture *pic);
86
87 int ff_vaapi_decode_init(AVCodecContext *avctx);
88 int ff_vaapi_decode_uninit(AVCodecContext *avctx);
89
90 #endif /* AVCODEC_VAAPI_DECODE_H */