git.sesse.net Git - vlc/blob - modules/codec/avcodec/dxva2.c

   1 /*****************************************************************************
   2  * dxva2.c: Video Acceleration helpers
   3  *****************************************************************************
   4  * Copyright (C) 2009 Geoffroy Couprie
   5  * Copyright (C) 2009 Laurent Aimar
   6  * $Id$
   7  *
   8  * Authors: Geoffroy Couprie <geal@videolan.org>
   9  *          Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU Lesser General Public License as published by
  13  * the Free Software Foundation; either version 2.1 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  19  * GNU Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public License
  22  * along with this program; if not, write to the Free Software Foundation,
  23  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30
  31 # if _WIN32_WINNT < 0x600
  32 /* dxva2 needs Vista support */
  33 #  undef _WIN32_WINNT
  34 #  define _WIN32_WINNT 0x600
  35 # endif
  36
  37 #include <assert.h>
  38
  39 #include <vlc_common.h>
  40 #include <vlc_picture.h>
  41 #include <vlc_fourcc.h>
  42 #include <vlc_cpu.h>
  43 #include <vlc_plugin.h>
  44
  45 #include <libavcodec/avcodec.h>
  46 #    define DXVA2API_USE_BITFIELDS
  47 #    define COBJMACROS
  48 #    include <libavcodec/dxva2.h>
  49
  50 #include "avcodec.h"
  51 #include "va.h"
  52 #include "../../video_chroma/copy.h"
  53
  54 static int Open(vlc_va_t *, AVCodecContext *, const es_format_t *);
  55 static void Close(vlc_va_t *, AVCodecContext *);
  56
  57 vlc_module_begin()
  58     set_description(N_("DirectX Video Acceleration (DXVA) 2.0"))
  59     set_capability("hw decoder", 0)
  60     set_category(CAT_INPUT)
  61     set_subcategory(SUBCAT_INPUT_VCODEC)
  62     set_callbacks(Open, Close)
  63 vlc_module_end()
  64
  65 #include <windows.h>
  66 #include <windowsx.h>
  67 #include <ole2.h>
  68 #include <commctrl.h>
  69 #include <shlwapi.h>
  70 #include <d3d9.h>
  71 #include <dxva2api.h>
  72
  73 #include <initguid.h> /* must be last included to not redefine existing GUIDs */
  74
  75 /* dxva2api.h GUIDs: http://msdn.microsoft.com/en-us/library/windows/desktop/ms697067(v=vs100).aspx
  76  * assume that they are declared in dxva2api.h */
  77 #define MS_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)
  78
  79 #ifdef __MINGW32__
  80 # include <_mingw.h>
  81
  82 # if !defined(__MINGW64_VERSION_MAJOR)
  83 #  undef MS_GUID
  84 #  define MS_GUID DEFINE_GUID /* dxva2api.h fails to declare those, redefine as static */
  85 #  define DXVA2_E_NEW_VIDEO_DEVICE MAKE_HRESULT(1, 4, 4097)
  86 # else
  87 #  include <dxva.h>
  88 # endif
  89
  90 #endif /* __MINGW32__ */
  91
  92 MS_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551, 0xd5e7, 0x11d9, 0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
  93 MS_GUID(IID_IDirectXVideoAccelerationService, 0xfc51a550, 0xd5e7, 0x11d9, 0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
  94
  95 MS_GUID    (DXVA_NoEncrypt,                         0x1b81bed0, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
  96
  97 /* Codec capabilities GUID, sorted by codec */
  98 MS_GUID    (DXVA2_ModeMPEG2_MoComp,                 0xe6a9f44b, 0x61b0, 0x4563, 0x9e, 0xa4, 0x63, 0xd2, 0xa3, 0xc6, 0xfe, 0x66);
  99 MS_GUID    (DXVA2_ModeMPEG2_IDCT,                   0xbf22ad00, 0x03ea, 0x4690, 0x80, 0x77, 0x47, 0x33, 0x46, 0x20, 0x9b, 0x7e);
 100 MS_GUID    (DXVA2_ModeMPEG2_VLD,                    0xee27417f, 0x5e28, 0x4e65, 0xbe, 0xea, 0x1d, 0x26, 0xb5, 0x08, 0xad, 0xc9);
 101 DEFINE_GUID(DXVA2_ModeMPEG2and1_VLD,                0x86695f12, 0x340e, 0x4f04, 0x9f, 0xd3, 0x92, 0x53, 0xdd, 0x32, 0x74, 0x60);
 102 DEFINE_GUID(DXVA2_ModeMPEG1_VLD,                    0x6f3ec719, 0x3735, 0x42cc, 0x80, 0x63, 0x65, 0xcc, 0x3c, 0xb3, 0x66, 0x16);
 103
 104 MS_GUID    (DXVA2_ModeH264_A,                       0x1b81be64, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 105 MS_GUID    (DXVA2_ModeH264_B,                       0x1b81be65, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 106 MS_GUID    (DXVA2_ModeH264_C,                       0x1b81be66, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 107 MS_GUID    (DXVA2_ModeH264_D,                       0x1b81be67, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 108 MS_GUID    (DXVA2_ModeH264_E,                       0x1b81be68, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 109 MS_GUID    (DXVA2_ModeH264_F,                       0x1b81be69, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 110 DEFINE_GUID(DXVA_ModeH264_VLD_Multiview,            0x9901CCD3, 0xca12, 0x4b7e, 0x86, 0x7a, 0xe2, 0x22, 0x3d, 0x92, 0x55, 0xc3); // MVC
 111 DEFINE_GUID(DXVA_ModeH264_VLD_WithFMOASO_NoFGT,     0xd5f04ff9, 0x3418, 0x45d8, 0x95, 0x61, 0x32, 0xa7, 0x6a, 0xae, 0x2d, 0xdd);
 112 DEFINE_GUID(DXVADDI_Intel_ModeH264_A,               0x604F8E64, 0x4951, 0x4c54, 0x88, 0xFE, 0xAB, 0xD2, 0x5C, 0x15, 0xB3, 0xD6);
 113 DEFINE_GUID(DXVADDI_Intel_ModeH264_C,               0x604F8E66, 0x4951, 0x4c54, 0x88, 0xFE, 0xAB, 0xD2, 0x5C, 0x15, 0xB3, 0xD6);
 114 DEFINE_GUID(DXVADDI_Intel_ModeH264_E,               0x604F8E68, 0x4951, 0x4c54, 0x88, 0xFE, 0xAB, 0xD2, 0x5C, 0x15, 0xB3, 0xD6); // DXVA_Intel_H264_NoFGT_ClearVideo
 115 DEFINE_GUID(DXVA_ModeH264_VLD_NoFGT_Flash,          0x4245F676, 0x2BBC, 0x4166, 0xa0, 0xBB, 0x54, 0xE7, 0xB8, 0x49, 0xC3, 0x80);
 116
 117 MS_GUID    (DXVA2_ModeWMV8_A,                       0x1b81be80, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 118 MS_GUID    (DXVA2_ModeWMV8_B,                       0x1b81be81, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 119
 120 MS_GUID    (DXVA2_ModeWMV9_A,                       0x1b81be90, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 121 MS_GUID    (DXVA2_ModeWMV9_B,                       0x1b81be91, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 122 MS_GUID    (DXVA2_ModeWMV9_C,                       0x1b81be94, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 123
 124 MS_GUID    (DXVA2_ModeVC1_A,                        0x1b81beA0, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 125 MS_GUID    (DXVA2_ModeVC1_B,                        0x1b81beA1, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 126 MS_GUID    (DXVA2_ModeVC1_C,                        0x1b81beA2, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 127 MS_GUID    (DXVA2_ModeVC1_D,                        0x1b81beA3, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
 128 DEFINE_GUID(DXVA2_ModeVC1_D2010,                    0x1b81beA4, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5); // August 2010 update
 129 DEFINE_GUID(DXVA_Intel_VC1_ClearVideo,              0xBCC5DB6D, 0xA2B6, 0x4AF0, 0xAC, 0xE4, 0xAD, 0xB1, 0xF7, 0x87, 0xBC, 0x89);
 130 DEFINE_GUID(DXVA_Intel_VC1_ClearVideo_2,            0xE07EC519, 0xE651, 0x4CD6, 0xAC, 0x84, 0x13, 0x70, 0xCC, 0xEE, 0xC8, 0x51);
 131
 132 DEFINE_GUID(DXVA_nVidia_MPEG4_ASP,                  0x9947EC6F, 0x689B, 0x11DC, 0xA3, 0x20, 0x00, 0x19, 0xDB, 0xBC, 0x41, 0x84);
 133 DEFINE_GUID(DXVA_ModeMPEG4pt2_VLD_Simple,           0xefd64d74, 0xc9e8, 0x41d7, 0xa5, 0xe9, 0xe9, 0xb0, 0xe3, 0x9f, 0xa3, 0x19);
 134 DEFINE_GUID(DXVA_ModeMPEG4pt2_VLD_AdvSimple_NoGMC,  0xed418a9f, 0x010d, 0x4eda, 0x9a, 0xe3, 0x9a, 0x65, 0x35, 0x8d, 0x8d, 0x2e);
 135 DEFINE_GUID(DXVA_ModeMPEG4pt2_VLD_AdvSimple_GMC,    0xab998b5b, 0x4258, 0x44a9, 0x9f, 0xeb, 0x94, 0xe5, 0x97, 0xa6, 0xba, 0xae);
 136 DEFINE_GUID(DXVA_ModeMPEG4pt2_VLD_AdvSimple_Avivo,  0x7C74ADC6, 0xe2ba, 0x4ade, 0x86, 0xde, 0x30, 0xbe, 0xab, 0xb4, 0x0c, 0xc1);
 137
 138
 139 /* */
 140 typedef struct {
 141     const char   *name;
 142     const GUID   *guid;
 143     int          codec;
 144 } dxva2_mode_t;
 145 /* XXX Prefered modes must come first */
 146 static const dxva2_mode_t dxva2_modes[] = {
 147     /* MPEG-1/2 */
 148     { "MPEG-2 variable-length decoder",                                               &DXVA2_ModeMPEG2_VLD,                   AV_CODEC_ID_MPEG2VIDEO },
 149     { "MPEG-2 & MPEG-1 variable-length decoder",                                      &DXVA2_ModeMPEG2and1_VLD,               AV_CODEC_ID_MPEG2VIDEO },
 150     { "MPEG-2 motion compensation",                                                   &DXVA2_ModeMPEG2_MoComp,                0 },
 151     { "MPEG-2 inverse discrete cosine transform",                                     &DXVA2_ModeMPEG2_IDCT,                  0 },
 152
 153     { "MPEG-1 variable-length decoder",                                               &DXVA2_ModeMPEG1_VLD,                   0 },
 154
 155     /* H.264 */
 156     { "H.264 variable-length decoder, film grain technology",                         &DXVA2_ModeH264_F,                      AV_CODEC_ID_H264 },
 157     { "H.264 variable-length decoder, no film grain technology (Intel ClearVideo)",   &DXVADDI_Intel_ModeH264_E,              AV_CODEC_ID_H264 },
 158     { "H.264 variable-length decoder, no film grain technology",                      &DXVA2_ModeH264_E,                      AV_CODEC_ID_H264 },
 159     { "H.264 variable-length decoder, no film grain technology, FMO/ASO",             &DXVA_ModeH264_VLD_WithFMOASO_NoFGT,    AV_CODEC_ID_H264 },
 160     { "H.264 variable-length decoder, no film grain technology, Flash",               &DXVA_ModeH264_VLD_NoFGT_Flash,         AV_CODEC_ID_H264 },
 161
 162     { "H.264 inverse discrete cosine transform, film grain technology",               &DXVA2_ModeH264_D,                      0 },
 163     { "H.264 inverse discrete cosine transform, no film grain technology",            &DXVA2_ModeH264_C,                      0 },
 164     { "H.264 inverse discrete cosine transform, no film grain technology (Intel)",    &DXVADDI_Intel_ModeH264_C,              0 },
 165
 166     { "H.264 motion compensation, film grain technology",                             &DXVA2_ModeH264_B,                      0 },
 167     { "H.264 motion compensation, no film grain technology",                          &DXVA2_ModeH264_A,                      0 },
 168     { "H.264 motion compensation, no film grain technology (Intel)",                  &DXVADDI_Intel_ModeH264_A,              0 },
 169
 170     /* WMV */
 171     { "Windows Media Video 8 motion compensation",                                    &DXVA2_ModeWMV8_B,                      0 },
 172     { "Windows Media Video 8 post processing",                                        &DXVA2_ModeWMV8_A,                      0 },
 173
 174     { "Windows Media Video 9 IDCT",                                                   &DXVA2_ModeWMV9_C,                      0 },
 175     { "Windows Media Video 9 motion compensation",                                    &DXVA2_ModeWMV9_B,                      0 },
 176     { "Windows Media Video 9 post processing",                                        &DXVA2_ModeWMV9_A,                      0 },
 177
 178     /* VC-1 */
 179     { "VC-1 variable-length decoder",                                                 &DXVA2_ModeVC1_D,                       AV_CODEC_ID_VC1 },
 180     { "VC-1 variable-length decoder",                                                 &DXVA2_ModeVC1_D,                       AV_CODEC_ID_WMV3 },
 181     { "VC-1 variable-length decoder",                                                 &DXVA2_ModeVC1_D2010,                   AV_CODEC_ID_VC1 },
 182     { "VC-1 variable-length decoder",                                                 &DXVA2_ModeVC1_D2010,                   AV_CODEC_ID_WMV3 },
 183     { "VC-1 variable-length decoder 2 (Intel)",                                       &DXVA_Intel_VC1_ClearVideo_2,           0 },
 184     { "VC-1 variable-length decoder (Intel)",                                         &DXVA_Intel_VC1_ClearVideo,             0 },
 185
 186     { "VC-1 inverse discrete cosine transform",                                       &DXVA2_ModeVC1_C,                       0 },
 187     { "VC-1 motion compensation",                                                     &DXVA2_ModeVC1_B,                       0 },
 188     { "VC-1 post processing",                                                         &DXVA2_ModeVC1_A,                       0 },
 189
 190     /* Xvid/Divx: TODO */
 191     { "MPEG-4 Part 2 nVidia bitstream decoder",                                       &DXVA_nVidia_MPEG4_ASP,                 0 },
 192     { "MPEG-4 Part 2 variable-length decoder, Simple Profile",                        &DXVA_ModeMPEG4pt2_VLD_Simple,          0 },
 193     { "MPEG-4 Part 2 variable-length decoder, Simple&Advanced Profile, no GMC",       &DXVA_ModeMPEG4pt2_VLD_AdvSimple_NoGMC, 0 },
 194     { "MPEG-4 Part 2 variable-length decoder, Simple&Advanced Profile, GMC",          &DXVA_ModeMPEG4pt2_VLD_AdvSimple_GMC,   0 },
 195     { "MPEG-4 Part 2 variable-length decoder, Simple&Advanced Profile, Avivo",        &DXVA_ModeMPEG4pt2_VLD_AdvSimple_Avivo, 0 },
 196
 197     { NULL, NULL, 0 }
 198 };
 199
 200 static const dxva2_mode_t *Dxva2FindMode(const GUID *guid)
 201 {
 202     for (unsigned i = 0; dxva2_modes[i].name; i++) {
 203         if (IsEqualGUID(dxva2_modes[i].guid, guid))
 204             return &dxva2_modes[i];
 205     }
 206     return NULL;
 207 }
 208
 209 /* */
 210 typedef struct {
 211     const char   *name;
 212     D3DFORMAT    format;
 213     vlc_fourcc_t codec;
 214 } d3d_format_t;
 215 /* XXX Prefered format must come first */
 216 static const d3d_format_t d3d_formats[] = {
 217     { "YV12",   MAKEFOURCC('Y','V','1','2'),    VLC_CODEC_YV12 },
 218     { "NV12",   MAKEFOURCC('N','V','1','2'),    VLC_CODEC_NV12 },
 219     { "IMC3",   MAKEFOURCC('I','M','C','3'),    VLC_CODEC_YV12 },
 220
 221     { NULL, 0, 0 }
 222 };
 223
 224 static const d3d_format_t *D3dFindFormat(D3DFORMAT format)
 225 {
 226     for (unsigned i = 0; d3d_formats[i].name; i++) {
 227         if (d3d_formats[i].format == format)
 228             return &d3d_formats[i];
 229     }
 230     return NULL;
 231 }
 232
 233 /* */
 234 typedef struct {
 235     LPDIRECT3DSURFACE9 d3d;
 236     int                refcount;
 237     unsigned int       order;
 238 } vlc_va_surface_t;
 239
 240 #define VA_DXVA2_MAX_SURFACE_COUNT (64)
 241 struct vlc_va_sys_t
 242 {
 243     int          codec_id;
 244     int          width;
 245     int          height;
 246
 247     /* DLL */
 248     HINSTANCE             hd3d9_dll;
 249     HINSTANCE             hdxva2_dll;
 250
 251     /* Direct3D */
 252     D3DPRESENT_PARAMETERS  d3dpp;
 253     LPDIRECT3D9            d3dobj;
 254     D3DADAPTER_IDENTIFIER9 d3dai;
 255     LPDIRECT3DDEVICE9      d3ddev;
 256
 257     /* Device manager */
 258     UINT                     token;
 259     IDirect3DDeviceManager9  *devmng;
 260     HANDLE                   device;
 261
 262     /* Video service */
 263     IDirectXVideoDecoderService  *vs;
 264     GUID                         input;
 265     D3DFORMAT                    render;
 266
 267     /* Video decoder */
 268     DXVA2_ConfigPictureDecode    cfg;
 269     IDirectXVideoDecoder         *decoder;
 270
 271     /* Option conversion */
 272     D3DFORMAT                    output;
 273     copy_cache_t                 surface_cache;
 274
 275     /* */
 276     struct dxva_context hw;
 277
 278     /* */
 279     unsigned     surface_count;
 280     unsigned     surface_order;
 281     int          surface_width;
 282     int          surface_height;
 283     vlc_fourcc_t surface_chroma;
 284
 285     int          thread_count;
 286
 287     vlc_va_surface_t surface[VA_DXVA2_MAX_SURFACE_COUNT];
 288     LPDIRECT3DSURFACE9 hw_surface[VA_DXVA2_MAX_SURFACE_COUNT];
 289 };
 290
 291 /* */
 292 static int D3dCreateDevice(vlc_va_t *);
 293 static void D3dDestroyDevice(vlc_va_sys_t *);
 294 static char *DxDescribe(vlc_va_sys_t *);
 295
 296 static int D3dCreateDeviceManager(vlc_va_t *);
 297 static void D3dDestroyDeviceManager(vlc_va_sys_t *);
 298
 299 static int DxCreateVideoService(vlc_va_t *);
 300 static void DxDestroyVideoService(vlc_va_sys_t *);
 301 static int DxFindVideoServiceConversion(vlc_va_t *, GUID *input, D3DFORMAT *output);
 302
 303 static int DxCreateVideoDecoder(vlc_va_t *,
 304                                 int codec_id, const video_format_t *);
 305 static void DxDestroyVideoDecoder(vlc_va_sys_t *);
 306 static int DxResetVideoDecoder(vlc_va_t *);
 307
 308 static void DxCreateVideoConversion(vlc_va_sys_t *);
 309 static void DxDestroyVideoConversion(vlc_va_sys_t *);
 310
 311 /* */
 312 static int Setup(vlc_va_t *va, AVCodecContext *avctx, vlc_fourcc_t *chroma)
 313 {
 314     vlc_va_sys_t *sys = va->sys;
 315
 316     if (sys->width == avctx->coded_width && sys->height == avctx->coded_height
 317      && sys->decoder != NULL)
 318         goto ok;
 319
 320     /* */
 321     DxDestroyVideoConversion(sys);
 322     DxDestroyVideoDecoder(sys);
 323
 324     avctx->hwaccel_context = NULL;
 325     *chroma = 0;
 326     if (avctx->coded_width <= 0 || avctx->coded_height <= 0)
 327         return VLC_EGENERIC;
 328
 329     /* FIXME transmit a video_format_t by VaSetup directly */
 330     video_format_t fmt;
 331     memset(&fmt, 0, sizeof(fmt));
 332     fmt.i_width = avctx->coded_width;
 333     fmt.i_height = avctx->coded_height;
 334
 335     if (DxCreateVideoDecoder(va, sys->codec_id, &fmt))
 336         return VLC_EGENERIC;
 337     /* */
 338     sys->hw.decoder = sys->decoder;
 339     sys->hw.cfg = &sys->cfg;
 340     sys->hw.surface_count = sys->surface_count;
 341     sys->hw.surface = sys->hw_surface;
 342
 343     /* */
 344     DxCreateVideoConversion(sys);
 345
 346     /* */
 347 ok:
 348     avctx->hwaccel_context = &sys->hw;
 349     const d3d_format_t *output = D3dFindFormat(sys->output);
 350     *chroma = output->codec;
 351
 352     return VLC_SUCCESS;
 353 }
 354
 355 static int Extract(vlc_va_t *va, picture_t *picture, void *opaque,
 356                    uint8_t *data)
 357 {
 358     vlc_va_sys_t *sys = va->sys;
 359     LPDIRECT3DSURFACE9 d3d = (LPDIRECT3DSURFACE9)(uintptr_t)data;
 360
 361     if (!sys->surface_cache.buffer)
 362         return VLC_EGENERIC;
 363
 364     /* */
 365     assert(sys->output == MAKEFOURCC('Y','V','1','2'));
 366
 367     /* */
 368     D3DLOCKED_RECT lock;
 369     if (FAILED(IDirect3DSurface9_LockRect(d3d, &lock, NULL, D3DLOCK_READONLY))) {
 370         msg_Err(va, "Failed to lock surface");
 371         return VLC_EGENERIC;
 372     }
 373
 374     if (sys->render == MAKEFOURCC('Y','V','1','2') ||
 375         sys->render == MAKEFOURCC('I','M','C','3')) {
 376         bool imc3 = sys->render == MAKEFOURCC('I','M','C','3');
 377         size_t chroma_pitch = imc3 ? lock.Pitch : (lock.Pitch / 2);
 378
 379         size_t pitch[3] = {
 380             lock.Pitch,
 381             chroma_pitch,
 382             chroma_pitch,
 383         };
 384
 385         uint8_t *plane[3] = {
 386             (uint8_t*)lock.pBits,
 387             (uint8_t*)lock.pBits + pitch[0] * sys->surface_height,
 388             (uint8_t*)lock.pBits + pitch[0] * sys->surface_height
 389                                  + pitch[1] * sys->surface_height / 2,
 390         };
 391
 392         if (imc3) {
 393             uint8_t *V = plane[1];
 394             plane[1] = plane[2];
 395             plane[2] = V;
 396         }
 397         CopyFromYv12(picture, plane, pitch, sys->width, sys->height,
 398                      &sys->surface_cache);
 399     } else {
 400         assert(sys->render == MAKEFOURCC('N','V','1','2'));
 401         uint8_t *plane[2] = {
 402             lock.pBits,
 403             (uint8_t*)lock.pBits + lock.Pitch * sys->surface_height
 404         };
 405         size_t  pitch[2] = {
 406             lock.Pitch,
 407             lock.Pitch,
 408         };
 409         CopyFromNv12(picture, plane, pitch, sys->width, sys->height,
 410                      &sys->surface_cache);
 411     }
 412
 413     /* */
 414     IDirect3DSurface9_UnlockRect(d3d);
 415     (void) opaque;
 416     return VLC_SUCCESS;
 417 }
 418
 419 /* FIXME it is nearly common with VAAPI */
 420 static int Get(vlc_va_t *va, void **opaque, uint8_t **data)
 421 {
 422     vlc_va_sys_t *sys = va->sys;
 423
 424     /* Check the device */
 425     HRESULT hr = IDirect3DDeviceManager9_TestDevice(sys->devmng, sys->device);
 426     if (hr == DXVA2_E_NEW_VIDEO_DEVICE) {
 427         if (DxResetVideoDecoder(va))
 428             return VLC_EGENERIC;
 429     } else if (FAILED(hr)) {
 430         msg_Err(va, "IDirect3DDeviceManager9_TestDevice %u", (unsigned)hr);
 431         return VLC_EGENERIC;
 432     }
 433
 434     /* Grab an unused surface, in case none are, try the oldest
 435      * XXX using the oldest is a workaround in case a problem happens with libavcodec */
 436     unsigned i, old;
 437     for (i = 0, old = 0; i < sys->surface_count; i++) {
 438         vlc_va_surface_t *surface = &sys->surface[i];
 439
 440         if (!surface->refcount)
 441             break;
 442
 443         if (surface->order < sys->surface[old].order)
 444             old = i;
 445     }
 446     if (i >= sys->surface_count)
 447         i = old;
 448
 449     vlc_va_surface_t *surface = &sys->surface[i];
 450
 451     surface->refcount = 1;
 452     surface->order = sys->surface_order++;
 453     *data = (void *)surface->d3d;
 454     *opaque = surface;
 455     return VLC_SUCCESS;
 456 }
 457
 458 static void Release(void *opaque, uint8_t *data)
 459 {
 460     vlc_va_surface_t *surface = opaque;
 461
 462     surface->refcount--;
 463     (void) data;
 464 }
 465
 466 static void Close(vlc_va_t *va, AVCodecContext *ctx)
 467 {
 468     vlc_va_sys_t *sys = va->sys;
 469
 470     (void) ctx;
 471     DxDestroyVideoConversion(sys);
 472     DxDestroyVideoDecoder(sys);
 473     DxDestroyVideoService(sys);
 474     D3dDestroyDeviceManager(sys);
 475     D3dDestroyDevice(sys);
 476
 477     if (sys->hdxva2_dll)
 478         FreeLibrary(sys->hdxva2_dll);
 479     if (sys->hd3d9_dll)
 480         FreeLibrary(sys->hd3d9_dll);
 481
 482     free((char *)va->description);
 483     free(sys);
 484 }
 485
 486 static int Open(vlc_va_t *va, AVCodecContext *ctx, const es_format_t *fmt)
 487 {
 488     vlc_va_sys_t *sys = calloc(1, sizeof (*sys));
 489     if (unlikely(sys == NULL))
 490         return VLC_ENOMEM;
 491
 492     va->sys = sys;
 493     sys->codec_id = ctx->codec_id;
 494     (void) fmt;
 495
 496     /* Load dll*/
 497     sys->hd3d9_dll = LoadLibrary(TEXT("D3D9.DLL"));
 498     if (!sys->hd3d9_dll) {
 499         msg_Warn(va, "cannot load d3d9.dll");
 500         goto error;
 501     }
 502     sys->hdxva2_dll = LoadLibrary(TEXT("DXVA2.DLL"));
 503     if (!sys->hdxva2_dll) {
 504         msg_Warn(va, "cannot load dxva2.dll");
 505         goto error;
 506     }
 507     msg_Dbg(va, "DLLs loaded");
 508
 509     /* */
 510     if (D3dCreateDevice(va)) {
 511         msg_Err(va, "Failed to create Direct3D device");
 512         goto error;
 513     }
 514     msg_Dbg(va, "D3dCreateDevice succeed");
 515
 516     if (D3dCreateDeviceManager(va)) {
 517         msg_Err(va, "D3dCreateDeviceManager failed");
 518         goto error;
 519     }
 520
 521     if (DxCreateVideoService(va)) {
 522         msg_Err(va, "DxCreateVideoService failed");
 523         goto error;
 524     }
 525
 526     /* */
 527     if (DxFindVideoServiceConversion(va, &sys->input, &sys->render)) {
 528         msg_Err(va, "DxFindVideoServiceConversion failed");
 529         goto error;
 530     }
 531
 532     sys->thread_count = ctx->thread_count;
 533
 534     /* TODO print the hardware name/vendor for debugging purposes */
 535     va->description = DxDescribe(sys);
 536     va->pix_fmt = PIX_FMT_DXVA2_VLD;
 537     va->setup   = Setup;
 538     va->get     = Get;
 539     va->release = Release;
 540     va->extract = Extract;
 541     return VLC_SUCCESS;
 542
 543 error:
 544     Close(va, ctx);
 545     return VLC_EGENERIC;
 546 }
 547 /* */
 548
 549 /**
 550  * It creates a Direct3D device usable for DXVA 2
 551  */
 552 static int D3dCreateDevice(vlc_va_t *va)
 553 {
 554     vlc_va_sys_t *sys = va->sys;
 555
 556     /* */
 557     LPDIRECT3D9 (WINAPI *Create9)(UINT SDKVersion);
 558     Create9 = (void *)GetProcAddress(sys->hd3d9_dll, "Direct3DCreate9");
 559     if (!Create9) {
 560         msg_Err(va, "Cannot locate reference to Direct3DCreate9 ABI in DLL");
 561         return VLC_EGENERIC;
 562     }
 563
 564     /* */
 565     LPDIRECT3D9 d3dobj;
 566     d3dobj = Create9(D3D_SDK_VERSION);
 567     if (!d3dobj) {
 568         msg_Err(va, "Direct3DCreate9 failed");
 569         return VLC_EGENERIC;
 570     }
 571     sys->d3dobj = d3dobj;
 572
 573     /* */
 574     D3DADAPTER_IDENTIFIER9 *d3dai = &sys->d3dai;
 575     if (FAILED(IDirect3D9_GetAdapterIdentifier(sys->d3dobj,
 576                                                D3DADAPTER_DEFAULT, 0, d3dai))) {
 577         msg_Warn(va, "IDirect3D9_GetAdapterIdentifier failed");
 578         ZeroMemory(d3dai, sizeof(*d3dai));
 579     }
 580
 581     /* */
 582     D3DPRESENT_PARAMETERS *d3dpp = &sys->d3dpp;
 583     ZeroMemory(d3dpp, sizeof(*d3dpp));
 584     d3dpp->Flags                  = D3DPRESENTFLAG_VIDEO;
 585     d3dpp->Windowed               = TRUE;
 586     d3dpp->hDeviceWindow          = NULL;
 587     d3dpp->SwapEffect             = D3DSWAPEFFECT_DISCARD;
 588     d3dpp->MultiSampleType        = D3DMULTISAMPLE_NONE;
 589     d3dpp->PresentationInterval   = D3DPRESENT_INTERVAL_DEFAULT;
 590     d3dpp->BackBufferCount        = 0;                  /* FIXME what to put here */
 591     d3dpp->BackBufferFormat       = D3DFMT_X8R8G8B8;    /* FIXME what to put here */
 592     d3dpp->BackBufferWidth        = 0;
 593     d3dpp->BackBufferHeight       = 0;
 594     d3dpp->EnableAutoDepthStencil = FALSE;
 595
 596     /* Direct3D needs a HWND to create a device, even without using ::Present
 597     this HWND is used to alert Direct3D when there's a change of focus window.
 598     For now, use GetDesktopWindow, as it looks harmless */
 599     LPDIRECT3DDEVICE9 d3ddev;
 600     if (FAILED(IDirect3D9_CreateDevice(d3dobj, D3DADAPTER_DEFAULT,
 601                                        D3DDEVTYPE_HAL, GetDesktopWindow(),
 602                                        D3DCREATE_SOFTWARE_VERTEXPROCESSING |
 603                                        D3DCREATE_MULTITHREADED,
 604                                        d3dpp, &d3ddev))) {
 605         msg_Err(va, "IDirect3D9_CreateDevice failed");
 606         return VLC_EGENERIC;
 607     }
 608     sys->d3ddev = d3ddev;
 609
 610     return VLC_SUCCESS;
 611 }
 612
 613 /**
 614  * It releases a Direct3D device and its resources.
 615  */
 616 static void D3dDestroyDevice(vlc_va_sys_t *va)
 617 {
 618     if (va->d3ddev)
 619         IDirect3DDevice9_Release(va->d3ddev);
 620     if (va->d3dobj)
 621         IDirect3D9_Release(va->d3dobj);
 622 }
 623 /**
 624  * It describes our Direct3D object
 625  */
 626 static char *DxDescribe(vlc_va_sys_t *va)
 627 {
 628     static const struct {
 629         unsigned id;
 630         char     name[32];
 631     } vendors [] = {
 632         { 0x1002, "ATI" },
 633         { 0x10DE, "NVIDIA" },
 634         { 0x1106, "VIA" },
 635         { 0x8086, "Intel" },
 636         { 0x5333, "S3 Graphics" },
 637         { 0, "" }
 638     };
 639     D3DADAPTER_IDENTIFIER9 *id = &va->d3dai;
 640
 641     const char *vendor = "Unknown";
 642     for (int i = 0; vendors[i].id != 0; i++) {
 643         if (vendors[i].id == id->VendorId) {
 644             vendor = vendors[i].name;
 645             break;
 646         }
 647     }
 648
 649     char *description;
 650     if (asprintf(&description, "DXVA2 (%.*s, vendor %lu(%s), device %lu, revision %lu)",
 651                  sizeof(id->Description), id->Description,
 652                  id->VendorId, vendor, id->DeviceId, id->Revision) < 0)
 653         return NULL;
 654     return description;
 655 }
 656
 657 /**
 658  * It creates a Direct3D device manager
 659  */
 660 static int D3dCreateDeviceManager(vlc_va_t *va)
 661 {
 662     vlc_va_sys_t *sys = va->sys;
 663
 664     HRESULT (WINAPI *CreateDeviceManager9)(UINT *pResetToken,
 665                                            IDirect3DDeviceManager9 **);
 666     CreateDeviceManager9 =
 667       (void *)GetProcAddress(sys->hdxva2_dll,
 668                              "DXVA2CreateDirect3DDeviceManager9");
 669
 670     if (!CreateDeviceManager9) {
 671         msg_Err(va, "cannot load function");
 672         return VLC_EGENERIC;
 673     }
 674     msg_Dbg(va, "OurDirect3DCreateDeviceManager9 Success!");
 675
 676     UINT token;
 677     IDirect3DDeviceManager9 *devmng;
 678     if (FAILED(CreateDeviceManager9(&token, &devmng))) {
 679         msg_Err(va, " OurDirect3DCreateDeviceManager9 failed");
 680         return VLC_EGENERIC;
 681     }
 682     sys->token  = token;
 683     sys->devmng = devmng;
 684     msg_Info(va, "obtained IDirect3DDeviceManager9");
 685
 686     HRESULT hr = IDirect3DDeviceManager9_ResetDevice(devmng, sys->d3ddev, token);
 687     if (FAILED(hr)) {
 688         msg_Err(va, "IDirect3DDeviceManager9_ResetDevice failed: %08x", (unsigned)hr);
 689         return VLC_EGENERIC;
 690     }
 691     return VLC_SUCCESS;
 692 }
 693 /**
 694  * It destroys a Direct3D device manager
 695  */
 696 static void D3dDestroyDeviceManager(vlc_va_sys_t *va)
 697 {
 698     if (va->devmng)
 699         IDirect3DDeviceManager9_Release(va->devmng);
 700 }
 701
 702 /**
 703  * It creates a DirectX video service
 704  */
 705 static int DxCreateVideoService(vlc_va_t *va)
 706 {
 707     vlc_va_sys_t *sys = va->sys;
 708
 709     HRESULT (WINAPI *CreateVideoService)(IDirect3DDevice9 *,
 710                                          REFIID riid,
 711                                          void **ppService);
 712     CreateVideoService =
 713       (void *)GetProcAddress(sys->hdxva2_dll, "DXVA2CreateVideoService");
 714
 715     if (!CreateVideoService) {
 716         msg_Err(va, "cannot load function");
 717         return 4;
 718     }
 719     msg_Info(va, "DXVA2CreateVideoService Success!");
 720
 721     HRESULT hr;
 722
 723     HANDLE device;
 724     hr = IDirect3DDeviceManager9_OpenDeviceHandle(sys->devmng, &device);
 725     if (FAILED(hr)) {
 726         msg_Err(va, "OpenDeviceHandle failed");
 727         return VLC_EGENERIC;
 728     }
 729     sys->device = device;
 730
 731     void *pv;
 732     hr = IDirect3DDeviceManager9_GetVideoService(sys->devmng, device,
 733                                         &IID_IDirectXVideoDecoderService, &pv);
 734     if (FAILED(hr)) {
 735         msg_Err(va, "GetVideoService failed");
 736         return VLC_EGENERIC;
 737     }
 738     sys->vs = pv;
 739
 740     return VLC_SUCCESS;
 741 }
 742
 743 /**
 744  * It destroys a DirectX video service
 745  */
 746 static void DxDestroyVideoService(vlc_va_sys_t *va)
 747 {
 748     if (va->device)
 749         IDirect3DDeviceManager9_CloseDeviceHandle(va->devmng, va->device);
 750     if (va->vs)
 751         IDirectXVideoDecoderService_Release(va->vs);
 752 }
 753 /**
 754  * Find the best suited decoder mode GUID and render format.
 755  */
 756 static int DxFindVideoServiceConversion(vlc_va_t *va, GUID *input, D3DFORMAT *output)
 757 {
 758     vlc_va_sys_t *sys = va->sys;
 759
 760     /* Retreive supported modes from the decoder service */
 761     UINT input_count = 0;
 762     GUID *input_list = NULL;
 763     if (FAILED(IDirectXVideoDecoderService_GetDecoderDeviceGuids(sys->vs,
 764                                                                  &input_count,
 765                                                                  &input_list))) {
 766         msg_Err(va, "IDirectXVideoDecoderService_GetDecoderDeviceGuids failed");
 767         return VLC_EGENERIC;
 768     }
 769     for (unsigned i = 0; i < input_count; i++) {
 770         const GUID *g = &input_list[i];
 771         const dxva2_mode_t *mode = Dxva2FindMode(g);
 772         if (mode) {
 773             msg_Dbg(va, "- '%s' is supported by hardware", mode->name);
 774         } else {
 775             msg_Warn(va, "- Unknown GUID = %08X-%04x-%04x-XXXX",
 776                      (unsigned)g->Data1, g->Data2, g->Data3);
 777         }
 778     }
 779
 780     /* Try all supported mode by our priority */
 781     for (unsigned i = 0; dxva2_modes[i].name; i++) {
 782         const dxva2_mode_t *mode = &dxva2_modes[i];
 783         if (!mode->codec || mode->codec != sys->codec_id)
 784             continue;
 785
 786         /* */
 787         bool is_supported = false;
 788         for (const GUID *g = &input_list[0]; !is_supported && g < &input_list[input_count]; g++) {
 789             is_supported = IsEqualGUID(mode->guid, g);
 790         }
 791         if (!is_supported)
 792             continue;
 793
 794         /* */
 795         msg_Dbg(va, "Trying to use '%s' as input", mode->name);
 796         UINT      output_count = 0;
 797         D3DFORMAT *output_list = NULL;
 798         if (FAILED(IDirectXVideoDecoderService_GetDecoderRenderTargets(sys->vs, mode->guid,
 799                                                                        &output_count,
 800                                                                        &output_list))) {
 801             msg_Err(va, "IDirectXVideoDecoderService_GetDecoderRenderTargets failed");
 802             continue;
 803         }
 804         for (unsigned j = 0; j < output_count; j++) {
 805             const D3DFORMAT f = output_list[j];
 806             const d3d_format_t *format = D3dFindFormat(f);
 807             if (format) {
 808                 msg_Dbg(va, "%s is supported for output", format->name);
 809             } else {
 810                 msg_Dbg(va, "%d is supported for output (%4.4s)", f, (const char*)&f);
 811             }
 812         }
 813
 814         /* */
 815         for (unsigned j = 0; d3d_formats[j].name; j++) {
 816             const d3d_format_t *format = &d3d_formats[j];
 817
 818             /* */
 819             bool is_supported = false;
 820             for (unsigned k = 0; !is_supported && k < output_count; k++) {
 821                 is_supported = format->format == output_list[k];
 822             }
 823             if (!is_supported)
 824                 continue;
 825
 826             /* We have our solution */
 827             msg_Dbg(va, "Using '%s' to decode to '%s'", mode->name, format->name);
 828             *input  = *mode->guid;
 829             *output = format->format;
 830             CoTaskMemFree(output_list);
 831             CoTaskMemFree(input_list);
 832             return VLC_SUCCESS;
 833         }
 834         CoTaskMemFree(output_list);
 835     }
 836     CoTaskMemFree(input_list);
 837     return VLC_EGENERIC;
 838 }
 839
 840 /**
 841  * It creates a DXVA2 decoder using the given video format
 842  */
 843 static int DxCreateVideoDecoder(vlc_va_t *va,
 844                                 int codec_id, const video_format_t *fmt)
 845 {
 846     vlc_va_sys_t *sys = va->sys;
 847
 848     /* */
 849     msg_Dbg(va, "DxCreateVideoDecoder id %d %dx%d",
 850             codec_id, fmt->i_width, fmt->i_height);
 851
 852     sys->width  = fmt->i_width;
 853     sys->height = fmt->i_height;
 854
 855     /* Allocates all surfaces needed for the decoder */
 856     sys->surface_width  = (fmt->i_width  + 15) & ~15;
 857     sys->surface_height = (fmt->i_height + 15) & ~15;
 858     int surface_count;
 859     switch (codec_id) {
 860     case AV_CODEC_ID_H264:
 861         surface_count = 16 + sys->thread_count + 2;
 862         break;
 863     case AV_CODEC_ID_MPEG1VIDEO:
 864     case AV_CODEC_ID_MPEG2VIDEO:
 865         surface_count = 2 + 2;
 866         break;
 867     default:
 868         surface_count = 2 + 1;
 869         break;
 870     }
 871     if (surface_count > VA_DXVA2_MAX_SURFACE_COUNT)
 872         return VLC_EGENERIC;
 873     sys->surface_count = surface_count;
 874     if (FAILED(IDirectXVideoDecoderService_CreateSurface(sys->vs,
 875                                                          sys->surface_width,
 876                                                          sys->surface_height,
 877                                                          sys->surface_count - 1,
 878                                                          sys->render,
 879                                                          D3DPOOL_DEFAULT,
 880                                                          0,
 881                                                          DXVA2_VideoDecoderRenderTarget,
 882                                                          sys->hw_surface,
 883                                                          NULL))) {
 884         msg_Err(va, "IDirectXVideoAccelerationService_CreateSurface failed");
 885         sys->surface_count = 0;
 886         return VLC_EGENERIC;
 887     }
 888     for (unsigned i = 0; i < sys->surface_count; i++) {
 889         vlc_va_surface_t *surface = &sys->surface[i];
 890         surface->d3d = sys->hw_surface[i];
 891         surface->refcount = 0;
 892         surface->order = 0;
 893     }
 894     msg_Dbg(va, "IDirectXVideoAccelerationService_CreateSurface succeed with %d surfaces (%dx%d)",
 895             sys->surface_count, fmt->i_width, fmt->i_height);
 896
 897     /* */
 898     DXVA2_VideoDesc dsc;
 899     ZeroMemory(&dsc, sizeof(dsc));
 900     dsc.SampleWidth     = fmt->i_width;
 901     dsc.SampleHeight    = fmt->i_height;
 902     dsc.Format          = sys->render;
 903     if (fmt->i_frame_rate > 0 && fmt->i_frame_rate_base > 0) {
 904         dsc.InputSampleFreq.Numerator   = fmt->i_frame_rate;
 905         dsc.InputSampleFreq.Denominator = fmt->i_frame_rate_base;
 906     } else {
 907         dsc.InputSampleFreq.Numerator   = 0;
 908         dsc.InputSampleFreq.Denominator = 0;
 909     }
 910     dsc.OutputFrameFreq = dsc.InputSampleFreq;
 911     dsc.UABProtectionLevel = FALSE;
 912     dsc.Reserved = 0;
 913
 914     /* FIXME I am unsure we can let unknown everywhere */
 915     DXVA2_ExtendedFormat *ext = &dsc.SampleFormat;
 916     ext->SampleFormat = 0;//DXVA2_SampleUnknown;
 917     ext->VideoChromaSubsampling = 0;//DXVA2_VideoChromaSubsampling_Unknown;
 918     ext->NominalRange = 0;//DXVA2_NominalRange_Unknown;
 919     ext->VideoTransferMatrix = 0;//DXVA2_VideoTransferMatrix_Unknown;
 920     ext->VideoLighting = 0;//DXVA2_VideoLighting_Unknown;
 921     ext->VideoPrimaries = 0;//DXVA2_VideoPrimaries_Unknown;
 922     ext->VideoTransferFunction = 0;//DXVA2_VideoTransFunc_Unknown;
 923
 924     /* List all configurations available for the decoder */
 925     UINT                      cfg_count = 0;
 926     DXVA2_ConfigPictureDecode *cfg_list = NULL;
 927     if (FAILED(IDirectXVideoDecoderService_GetDecoderConfigurations(sys->vs,
 928                                                                     &sys->input,
 929                                                                     &dsc,
 930                                                                     NULL,
 931                                                                     &cfg_count,
 932                                                                     &cfg_list))) {
 933         msg_Err(va, "IDirectXVideoDecoderService_GetDecoderConfigurations failed");
 934         return VLC_EGENERIC;
 935     }
 936     msg_Dbg(va, "we got %d decoder configurations", cfg_count);
 937
 938     /* Select the best decoder configuration */
 939     int cfg_score = 0;
 940     for (unsigned i = 0; i < cfg_count; i++) {
 941         const DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
 942
 943         /* */
 944         msg_Dbg(va, "configuration[%d] ConfigBitstreamRaw %d",
 945                 i, cfg->ConfigBitstreamRaw);
 946
 947         /* */
 948         int score;
 949         if (cfg->ConfigBitstreamRaw == 1)
 950             score = 1;
 951         else if (codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
 952             score = 2;
 953         else
 954             continue;
 955         if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA_NoEncrypt))
 956             score += 16;
 957
 958         if (cfg_score < score) {
 959             sys->cfg = *cfg;
 960             cfg_score = score;
 961         }
 962     }
 963     CoTaskMemFree(cfg_list);
 964     if (cfg_score <= 0) {
 965         msg_Err(va, "Failed to find a supported decoder configuration");
 966         return VLC_EGENERIC;
 967     }
 968
 969     /* Create the decoder */
 970     IDirectXVideoDecoder *decoder;
 971     if (FAILED(IDirectXVideoDecoderService_CreateVideoDecoder(sys->vs,
 972                                                               &sys->input,
 973                                                               &dsc,
 974                                                               &sys->cfg,
 975                                                               sys->hw_surface,
 976                                                               sys->surface_count,
 977                                                               &decoder))) {
 978         msg_Err(va, "IDirectXVideoDecoderService_CreateVideoDecoder failed");
 979         return VLC_EGENERIC;
 980     }
 981     sys->decoder = decoder;
 982     msg_Dbg(va, "IDirectXVideoDecoderService_CreateVideoDecoder succeed");
 983     return VLC_SUCCESS;
 984 }
 985
 986 static void DxDestroyVideoDecoder(vlc_va_sys_t *va)
 987 {
 988     if (va->decoder)
 989         IDirectXVideoDecoder_Release(va->decoder);
 990     va->decoder = NULL;
 991
 992     for (unsigned i = 0; i < va->surface_count; i++)
 993         IDirect3DSurface9_Release(va->surface[i].d3d);
 994     va->surface_count = 0;
 995 }
 996
 997 static int DxResetVideoDecoder(vlc_va_t *va)
 998 {
 999     msg_Err(va, "DxResetVideoDecoder unimplemented");
1000     return VLC_EGENERIC;
1001 }
1002
1003 static void DxCreateVideoConversion(vlc_va_sys_t *va)
1004 {
1005     switch (va->render) {
1006     case MAKEFOURCC('N','V','1','2'):
1007     case MAKEFOURCC('I','M','C','3'):
1008         va->output = MAKEFOURCC('Y','V','1','2');
1009         break;
1010     default:
1011         va->output = va->render;
1012         break;
1013     }
1014     CopyInitCache(&va->surface_cache, va->surface_width);
1015 }
1016
1017 static void DxDestroyVideoConversion(vlc_va_sys_t *va)
1018 {
1019     CopyCleanCache(&va->surface_cache);
1020 }