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2134
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1 /*
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2 * DXVA2 HW acceleration
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3 *
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4 * copyright (c) 2009 Laurent Aimar
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5 *
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6 * This file is part of FFmpeg.
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7 *
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8 * FFmpeg is free software; you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public
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10 * License as published by the Free Software Foundation; either
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11 * version 2.1 of the License, or (at your option) any later version.
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12 *
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13 * FFmpeg is distributed in the hope that it will be useful,
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with FFmpeg; if not, write to the Free Software
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20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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21 */
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22
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23 #ifndef AVCODEC_DXVA_H
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24 #define AVCODEC_DXVA_H
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25
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26 /**
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27 * @file
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28 * @ingroup lavc_codec_hwaccel_dxva2
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29 * Public libavcodec DXVA2 header.
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30 */
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31
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32 #if defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0600
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33 #undef _WIN32_WINNT
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34 #endif
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35
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36 #if !defined(_WIN32_WINNT)
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37 #define _WIN32_WINNT 0x0600
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38 #endif
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39
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40 #include <stdint.h>
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41 #include <d3d9.h>
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42 #include <dxva2api.h>
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43
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44 /**
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45 * @defgroup lavc_codec_hwaccel_dxva2 DXVA2
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46 * @ingroup lavc_codec_hwaccel
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47 *
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48 * @{
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49 */
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50
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51 #define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
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52
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53 /**
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54 * This structure is used to provides the necessary configurations and data
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55 * to the DXVA2 FFmpeg HWAccel implementation.
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56 *
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57 * The application must make it available as AVCodecContext.hwaccel_context.
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58 */
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59 struct dxva_context {
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60 /**
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61 * DXVA2 decoder object
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62 */
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63 IDirectXVideoDecoder *decoder;
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64
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65 /**
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66 * DXVA2 configuration used to create the decoder
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67 */
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68 const DXVA2_ConfigPictureDecode *cfg;
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69
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70 /**
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71 * The number of surface in the surface array
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72 */
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73 unsigned surface_count;
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74
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75 /**
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76 * The array of Direct3D surfaces used to create the decoder
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77 */
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78 LPDIRECT3DSURFACE9 *surface;
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79
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80 /**
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81 * A bit field configuring the workarounds needed for using the decoder
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82 */
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83 uint64_t workaround;
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84
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85 /**
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86 * Private to the FFmpeg AVHWAccel implementation
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87 */
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88 unsigned report_id;
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89 };
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90
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91 /**
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92 * @}
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93 */
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94
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95 #endif /* AVCODEC_DXVA_H */
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