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vaapi_internal.h
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1 /*
2  * Video Acceleration API (video decoding)
3  * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
4  *
5  * Copyright (C) 2008-2009 Splitted-Desktop Systems
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #ifndef AVCODEC_VAAPI_INTERNAL_H
25 #define AVCODEC_VAAPI_INTERNAL_H
26 
27 #include <va/va.h>
28 #include "vaapi.h"
29 #include "avcodec.h"
30 #include "mpegvideo.h"
31 
32 /**
33  * @addtogroup VAAPI_Decoding
34  *
35  * @{
36  */
37 
38 /** Extract VASurfaceID from a Picture */
39 static inline VASurfaceID ff_vaapi_get_surface_id(Picture *pic)
40 {
41  return (uintptr_t)pic->f.data[3];
42 }
43 
44 /** Common AVHWAccel.end_frame() implementation */
46 
47 /** Allocate a new picture parameter buffer */
48 void *ff_vaapi_alloc_pic_param(struct vaapi_context *vactx, unsigned int size);
49 
50 /** Allocate a new IQ matrix buffer */
51 void *ff_vaapi_alloc_iq_matrix(struct vaapi_context *vactx, unsigned int size);
52 
53 /** Allocate a new bit-plane buffer */
54 uint8_t *ff_vaapi_alloc_bitplane(struct vaapi_context *vactx, uint32_t size);
55 
56 /**
57  * Allocate a new slice descriptor for the input slice.
58  *
59  * @param vactx the VA API context
60  * @param buffer the slice data buffer base
61  * @param size the size of the slice in bytes
62  * @return the newly allocated slice parameter
63  */
64 VASliceParameterBufferBase *ff_vaapi_alloc_slice(struct vaapi_context *vactx, const uint8_t *buffer, uint32_t size);
65 
67 int ff_vaapi_commit_slices(struct vaapi_context *vactx);
68 int ff_vaapi_render_picture(struct vaapi_context *vactx, VASurfaceID surface);
69 
70 /* @} */
71 
72 #endif /* AVCODEC_VAAPI_INTERNAL_H */