1/*
2 * DXVA2 HW acceleration
3 *
4 * copyright (c) 2009 Laurent Aimar
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23#ifndef AVCODEC_DXVA_H
24#define AVCODEC_DXVA_H
25
26/**
27 * @file
28 * @ingroup lavc_codec_hwaccel_dxva2
29 * Public libavcodec DXVA2 header.
30 */
31
32#if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0600
33#undef _WIN32_WINNT
34#endif
35
36#if !defined(_WIN32_WINNT)
37#define _WIN32_WINNT 0x0600
38#endif
39
40#include <stdint.h>
41#include <d3d9.h>
42#include <dxva2api.h>
43
44/**
45 * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
46 * @ingroup lavc_codec_hwaccel
47 *
48 * @{
49 */
50
51#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
52#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO    2 ///< Work around for DXVA2 and old Intel GPUs with ClearVideo interface
53
54/**
55 * This structure is used to provides the necessary configurations and data
56 * to the DXVA2 FFmpeg HWAccel implementation.
57 *
58 * The application must make it available as AVCodecContext.hwaccel_context.
59 */
60struct dxva_context {
61    /**
62     * DXVA2 decoder object
63     */
64    IDirectXVideoDecoder *decoder;
65
66    /**
67     * DXVA2 configuration used to create the decoder
68     */
69    const DXVA2_ConfigPictureDecode *cfg;
70
71    /**
72     * The number of surface in the surface array
73     */
74    unsigned surface_count;
75
76    /**
77     * The array of Direct3D surfaces used to create the decoder
78     */
79    LPDIRECT3DSURFACE9 *surface;
80
81    /**
82     * A bit field configuring the workarounds needed for using the decoder
83     */
84    uint64_t workaround;
85
86    /**
87     * Private to the FFmpeg AVHWAccel implementation
88     */
89    unsigned report_id;
90};
91
92/**
93 * @}
94 */
95
96#endif /* AVCODEC_DXVA_H */
97