1/*
2 * DXVA2 HW acceleration
3 *
4 * copyright (c) 2009 Laurent Aimar
5 *
6 * This file is part of Libav.
7 *
8 * Libav 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 * Libav 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 Libav; 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#include <stdint.h>
27
28#include <d3d9.h>
29#include <dxva2api.h>
30
31#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
32
33/**
34 * This structure is used to provides the necessary configurations and data
35 * to the DXVA2 Libav HWAccel implementation.
36 *
37 * The application must make it available as AVCodecContext.hwaccel_context.
38 */
39struct dxva_context {
40    /**
41     * DXVA2 decoder object
42     */
43    IDirectXVideoDecoder *decoder;
44
45    /**
46     * DXVA2 configuration used to create the decoder
47     */
48    const DXVA2_ConfigPictureDecode *cfg;
49
50    /**
51     * The number of surface in the surface array
52     */
53    unsigned surface_count;
54
55    /**
56     * The array of Direct3D surfaces used to create the decoder
57     */
58    LPDIRECT3DSURFACE9 *surface;
59
60    /**
61     * A bit field configuring the workarounds needed for using the decoder
62     */
63    uint64_t workaround;
64
65    /**
66     * Private to the Libav AVHWAccel implementation
67     */
68    unsigned report_id;
69};
70
71#endif /* AVCODEC_DXVA_H */
72