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

   1 /*****************************************************************************
   2  * va.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
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 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 General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, 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 #include <vlc_common.h>
  31 #include <vlc_picture.h>
  32 #include <vlc_fourcc.h>
  33 #include <vlc_cpu.h>
  34 #include <assert.h>
  35
  36 #ifdef HAVE_LIBAVCODEC_AVCODEC_H
  37 #   include <libavcodec/avcodec.h>
  38 #   ifdef HAVE_AVCODEC_DXVA2
  39 #       define DXVA2API_USE_BITFIELDS
  40 #       include <libavcodec/dxva2.h>
  41 #   endif
  42 #else
  43 #   include <avcodec.h>
  44 #endif
  45
  46 #include "avcodec.h"
  47 #include "va.h"
  48 #include "copy.h"
  49
  50 #ifdef HAVE_AVCODEC_DXVA2
  51
  52 #include <windows.h>
  53 #include <windowsx.h>
  54 #include <ole2.h>
  55 #include <commctrl.h>
  56 #include <shlwapi.h>
  57 #include <d3d9.h>
  58
  59 /* */
  60 #define DXVA2_E_NOT_INITIALIZED     MAKE_HRESULT(1, 4, 4096)
  61 #define DXVA2_E_NEW_VIDEO_DEVICE    MAKE_HRESULT(1, 4, 4097)
  62 #define DXVA2_E_VIDEO_DEVICE_LOCKED MAKE_HRESULT(1, 4, 4098)
  63 #define DXVA2_E_NOT_AVAILABLE       MAKE_HRESULT(1, 4, 4099)
  64
  65 static const GUID DXVA2_ModeMPEG2_MoComp = {
  66     0xe6a9f44b, 0x61b0,0x4563, {0x9e,0xa4,0x63,0xd2,0xa3,0xc6,0xfe,0x66}
  67 };
  68 static const GUID DXVA2_ModeMPEG2_IDCT = {
  69     0xbf22ad00, 0x03ea,0x4690, {0x80,0x77,0x47,0x33,0x46,0x20,0x9b,0x7e}
  70 };
  71 static const GUID DXVA2_ModeMPEG2_VLD = {
  72     0xee27417f, 0x5e28,0x4e65, {0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9}
  73 };
  74 static const GUID DXVA2_ModeMPEG2and1_VLD = {
  75     0x86695f12, 0x340e,0x4f04, {0x9f,0xd3,0x92,0x53,0xdd,0x32,0x74,0x60}
  76 };
  77 static const GUID DXVA2_ModeMPEG1_VLD = {
  78     0x6f3ec719, 0x3735,0x42cc, {0x80,0x63,0x65,0xcc,0x3c,0xb3,0x66,0x16}
  79 };
  80
  81 static const GUID DXVA2_ModeH264_A = {
  82     0x1b81be64, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  83 };
  84 static const GUID DXVA2_ModeH264_B = {
  85     0x1b81be65, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  86 };
  87 static const GUID DXVA2_ModeH264_C = {
  88     0x1b81be66, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  89 };
  90 static const GUID DXVA2_ModeH264_D = {
  91     0x1b81be67, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  92 };
  93 static const GUID DXVA2_ModeH264_E = {
  94     0x1b81be68, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  95 };
  96 static const GUID DXVA2_ModeH264_F = {
  97     0x1b81be69, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
  98 };
  99 static const GUID DXVADDI_Intel_ModeH264_A = {
 100     0x604F8E64, 0x4951,0x4c54, {0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6}
 101 };
 102 static const GUID DXVADDI_Intel_ModeH264_C = {
 103     0x604F8E66, 0x4951,0x4c54, {0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6}
 104 };
 105 static const GUID DXVADDI_Intel_ModeH264_E = { // DXVA_Intel_H264_ClearVideo
 106     0x604F8E68, 0x4951,0x4c54, {0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6}
 107 };
 108 static const GUID DXVA2_ModeWMV8_A = {
 109     0x1b81be80, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 110 };
 111 static const GUID DXVA2_ModeWMV8_B = {
 112     0x1b81be81, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 113 };
 114 static const GUID DXVA2_ModeWMV9_A = {
 115     0x1b81be90, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 116 };
 117 static const GUID DXVA2_ModeWMV9_B = {
 118     0x1b81be91, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 119 };
 120 static const GUID DXVA2_ModeWMV9_C = {
 121     0x1b81be94, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 122 };
 123
 124 static const GUID DXVA2_ModeVC1_A = {
 125     0x1b81beA0, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 126 };
 127 static const GUID DXVA2_ModeVC1_B = {
 128     0x1b81beA1, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 129 };
 130 static const GUID DXVA2_ModeVC1_C = {
 131     0x1b81beA2, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 132 };
 133 static const GUID DXVA2_ModeVC1_D = {
 134     0x1b81beA3, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 135 };
 136 /* Conformity to the August 2010 update of the specification, ModeVC1_VLD2010 */
 137 static const GUID DXVA2_ModeVC1_D2010 = {
 138     0x1b81beA4, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 139 };
 140
 141 static const GUID DXVA_NoEncrypt = {
 142     0x1b81bed0, 0xa0c7,0x11d3, {0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5}
 143 };
 144
 145 static const GUID DXVA_Intel_VC1_ClearVideo = {
 146     0xBCC5DB6D, 0xA2B6,0x4AF0, {0xAC,0xE4,0xAD,0xB1,0xF7,0x87,0xBC,0x89}
 147 };
 148
 149 static const GUID DXVA_nVidia_MPEG4_ASP = {
 150     0x9947EC6F, 0x689B,0x11DC, {0xA3,0x20,0x00,0x19,0xDB,0xBC,0x41,0x84}
 151 };
 152
 153 /* */
 154 typedef struct {
 155     const char   *name;
 156     const GUID   *guid;
 157     int          codec;
 158 } dxva2_mode_t;
 159 /* XXX Prefered modes must come first */
 160 static const dxva2_mode_t dxva2_modes[] = {
 161     { "MPEG-2 variable-length decoder",            &DXVA2_ModeMPEG2_VLD,     CODEC_ID_MPEG2VIDEO },
 162     { "MPEG-2 & MPEG-1 variable-length decoder",   &DXVA2_ModeMPEG2and1_VLD, CODEC_ID_MPEG2VIDEO },
 163     { "MPEG-2 motion compensation",                &DXVA2_ModeMPEG2_MoComp,  0 },
 164     { "MPEG-2 inverse discrete cosine transform",  &DXVA2_ModeMPEG2_IDCT,    0 },
 165
 166     { "MPEG-1 variable-length decoder",            &DXVA2_ModeMPEG1_VLD,     0 },
 167
 168     { "H.264 variable-length decoder, film grain technology",                      &DXVA2_ModeH264_F,         CODEC_ID_H264 },
 169     { "H.264 variable-length decoder, no film grain technology",                   &DXVA2_ModeH264_E,         CODEC_ID_H264 },
 170     { "H.264 variable-length decoder, no film grain technology (Intel ClearVideo)",&DXVADDI_Intel_ModeH264_E, CODEC_ID_H264 },
 171     { "H.264 inverse discrete cosine transform, film grain technology",            &DXVA2_ModeH264_D,         0             },
 172     { "H.264 inverse discrete cosine transform, no film grain technology",         &DXVA2_ModeH264_C,         0             },
 173     { "H.264 inverse discrete cosine transform, no film grain technology (Intel)", &DXVADDI_Intel_ModeH264_C, 0             },
 174     { "H.264 motion compensation, film grain technology",                          &DXVA2_ModeH264_B,         0             },
 175     { "H.264 motion compensation, no film grain technology",                       &DXVA2_ModeH264_A,         0             },
 176     { "H.264 motion compensation, no film grain technology (Intel)",               &DXVADDI_Intel_ModeH264_A, 0             },
 177
 178     { "Windows Media Video 8 motion compensation", &DXVA2_ModeWMV8_B, 0 },
 179     { "Windows Media Video 8 post processing",     &DXVA2_ModeWMV8_A, 0 },
 180
 181     { "Windows Media Video 9 IDCT",                &DXVA2_ModeWMV9_C, 0 },
 182     { "Windows Media Video 9 motion compensation", &DXVA2_ModeWMV9_B, 0 },
 183     { "Windows Media Video 9 post processing",     &DXVA2_ModeWMV9_A, 0 },
 184
 185     { "VC-1 variable-length decoder",              &DXVA2_ModeVC1_D, CODEC_ID_VC1 },
 186     { "VC-1 variable-length decoder",              &DXVA2_ModeVC1_D, CODEC_ID_WMV3 },
 187     { "VC-1 variable-length decoder",              &DXVA2_ModeVC1_D2010, CODEC_ID_VC1 },
 188     { "VC-1 variable-length decoder",              &DXVA2_ModeVC1_D2010, CODEC_ID_WMV3 },
 189     { "VC-1 inverse discrete cosine transform",    &DXVA2_ModeVC1_C, 0 },
 190     { "VC-1 motion compensation",                  &DXVA2_ModeVC1_B, 0 },
 191     { "VC-1 post processing",                      &DXVA2_ModeVC1_A, 0 },
 192
 193     { "VC-1 variable-length decoder (Intel)",      &DXVA_Intel_VC1_ClearVideo, 0 },
 194
 195     { "MPEG-4 ASP nVidia bitstream decoder",       &DXVA_nVidia_MPEG4_ASP, 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
 220     { NULL, 0, 0 }
 221 };
 222
 223 static const d3d_format_t *D3dFindFormat(D3DFORMAT format)
 224 {
 225     for (unsigned i = 0; d3d_formats[i].name; i++) {
 226         if (d3d_formats[i].format == format)
 227             return &d3d_formats[i];
 228     }
 229     return NULL;
 230 }
 231
 232 static const GUID IID_IDirectXVideoDecoderService = {
 233     0xfc51a551, 0xd5e7, 0x11d9, {0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02}
 234 };
 235 static const GUID IID_IDirectXVideoAccelerationService = {
 236     0xfc51a550, 0xd5e7, 0x11d9, {0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02}
 237 };
 238
 239 /* */
 240 typedef struct {
 241     LPDIRECT3DSURFACE9 d3d;
 242     int                refcount;
 243     unsigned int       order;
 244 } vlc_va_surface_t;
 245
 246 #define VA_DXVA2_MAX_SURFACE_COUNT (64)
 247 typedef struct
 248 {
 249     /* */
 250     vlc_va_t va;
 251
 252     /* */
 253     vlc_object_t *log;
 254     int          codec_id;
 255     int          width;
 256     int          height;
 257
 258     /* DLL */
 259     HINSTANCE             hd3d9_dll;
 260     HINSTANCE             hdxva2_dll;
 261
 262     /* Direct3D */
 263     D3DPRESENT_PARAMETERS  d3dpp;
 264     LPDIRECT3D9            d3dobj;
 265     D3DADAPTER_IDENTIFIER9 d3dai;
 266     LPDIRECT3DDEVICE9      d3ddev;
 267
 268     /* Device manager */
 269     UINT                     token;
 270     IDirect3DDeviceManager9  *devmng;
 271     HANDLE                   device;
 272
 273     /* Video service */
 274     IDirectXVideoDecoderService  *vs;
 275     GUID                         input;
 276     D3DFORMAT                    render;
 277
 278     /* Video decoder */
 279     DXVA2_ConfigPictureDecode    cfg;
 280     IDirectXVideoDecoder         *decoder;
 281
 282     /* Option conversion */
 283     D3DFORMAT                    output;
 284     copy_cache_t                 surface_cache;
 285
 286     /* */
 287     struct dxva_context hw;
 288
 289     /* */
 290     unsigned     surface_count;
 291     unsigned     surface_order;
 292     int          surface_width;
 293     int          surface_height;
 294     vlc_fourcc_t surface_chroma;
 295
 296     vlc_va_surface_t surface[VA_DXVA2_MAX_SURFACE_COUNT];
 297     LPDIRECT3DSURFACE9 hw_surface[VA_DXVA2_MAX_SURFACE_COUNT];
 298 } vlc_va_dxva2_t;
 299
 300 /* */
 301 static vlc_va_dxva2_t *vlc_va_dxva2_Get(void *external)
 302 {
 303     assert(external == (void*)(&((vlc_va_dxva2_t*)external)->va));
 304     return external;
 305 }
 306
 307 /* */
 308 static int D3dCreateDevice(vlc_va_dxva2_t *);
 309 static void D3dDestroyDevice(vlc_va_dxva2_t *);
 310 static char *DxDescribe(vlc_va_dxva2_t *);
 311
 312 static int D3dCreateDeviceManager(vlc_va_dxva2_t *);
 313 static void D3dDestroyDeviceManager(vlc_va_dxva2_t *);
 314
 315 static int DxCreateVideoService(vlc_va_dxva2_t *);
 316 static void DxDestroyVideoService(vlc_va_dxva2_t *);
 317 static int DxFindVideoServiceConversion(vlc_va_dxva2_t *, GUID *input, D3DFORMAT *output);
 318
 319 static int DxCreateVideoDecoder(vlc_va_dxva2_t *,
 320                                 int codec_id, const video_format_t *);
 321 static void DxDestroyVideoDecoder(vlc_va_dxva2_t *);
 322 static int DxResetVideoDecoder(vlc_va_dxva2_t *);
 323
 324 static void DxCreateVideoConversion(vlc_va_dxva2_t *);
 325 static void DxDestroyVideoConversion(vlc_va_dxva2_t *);
 326
 327 /* */
 328 static int Setup(vlc_va_t *external, void **hw, vlc_fourcc_t *chroma,
 329                  int width, int height)
 330 {
 331     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 332
 333     if (va->width == width && va->height == height && va->decoder)
 334         goto ok;
 335
 336     /* */
 337     DxDestroyVideoConversion(va);
 338     DxDestroyVideoDecoder(va);
 339
 340     *hw = NULL;
 341     *chroma = 0;
 342     if (width <= 0 || height <= 0)
 343         return VLC_EGENERIC;
 344
 345     /* FIXME transmit a video_format_t by VaSetup directly */
 346     video_format_t fmt;
 347     memset(&fmt, 0, sizeof(fmt));
 348     fmt.i_width = width;
 349     fmt.i_height = height;
 350
 351     if (DxCreateVideoDecoder(va, va->codec_id, &fmt))
 352         return VLC_EGENERIC;
 353     /* */
 354     va->hw.decoder = va->decoder;
 355     va->hw.cfg = &va->cfg;
 356     va->hw.surface_count = va->surface_count;
 357     va->hw.surface = va->hw_surface;
 358     for (unsigned i = 0; i < va->surface_count; i++)
 359         va->hw.surface[i] = va->surface[i].d3d;
 360
 361     /* */
 362     DxCreateVideoConversion(va);
 363
 364     /* */
 365 ok:
 366     *hw = &va->hw;
 367     const d3d_format_t *output = D3dFindFormat(va->output);
 368     *chroma = output->codec;
 369
 370     return VLC_SUCCESS;
 371 }
 372
 373 static int Extract(vlc_va_t *external, picture_t *picture, AVFrame *ff)
 374 {
 375     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 376     LPDIRECT3DSURFACE9 d3d = (LPDIRECT3DSURFACE9)(uintptr_t)ff->data[3];
 377
 378     if (!va->surface_cache.buffer)
 379         return VLC_EGENERIC;
 380
 381     /* */
 382     assert(va->output == MAKEFOURCC('Y','V','1','2'));
 383
 384     /* */
 385     D3DLOCKED_RECT lock;
 386     if (FAILED(IDirect3DSurface9_LockRect(d3d, &lock, NULL, D3DLOCK_READONLY))) {
 387         msg_Err(va->log, "Failed to lock surface");
 388         return VLC_EGENERIC;
 389     }
 390
 391     if (va->render == MAKEFOURCC('Y','V','1','2')) {
 392         uint8_t *plane[3] = {
 393             lock.pBits,
 394             (uint8_t*)lock.pBits + lock.Pitch * va->surface_height,
 395             (uint8_t*)lock.pBits + lock.Pitch * va->surface_height
 396                                  + (lock.Pitch/2) * (va->surface_height/2)
 397         };
 398         size_t  pitch[3] = {
 399             lock.Pitch,
 400             lock.Pitch / 2,
 401             lock.Pitch / 2,
 402         };
 403         CopyFromYv12(picture, plane, pitch,
 404                      va->width, va->height,
 405                      &va->surface_cache);
 406     } else {
 407         assert(va->render == MAKEFOURCC('N','V','1','2'));
 408         uint8_t *plane[2] = {
 409             lock.pBits,
 410             (uint8_t*)lock.pBits + lock.Pitch * va->surface_height
 411         };
 412         size_t  pitch[2] = {
 413             lock.Pitch,
 414             lock.Pitch,
 415         };
 416         CopyFromNv12(picture, plane, pitch,
 417                      va->width, va->height,
 418                      &va->surface_cache);
 419     }
 420
 421     /* */
 422     IDirect3DSurface9_UnlockRect(d3d);
 423     return VLC_SUCCESS;
 424 }
 425 /* FIXME it is nearly common with VAAPI */
 426 static int Get(vlc_va_t *external, AVFrame *ff)
 427 {
 428     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 429
 430     /* Check the device */
 431     HRESULT hr = IDirect3DDeviceManager9_TestDevice(va->devmng, va->device);
 432     if (hr == DXVA2_E_NEW_VIDEO_DEVICE) {
 433         if (DxResetVideoDecoder(va))
 434             return VLC_EGENERIC;
 435     } else if (FAILED(hr)) {
 436         msg_Err(va->log, "IDirect3DDeviceManager9_TestDevice %u", (unsigned)hr);
 437         return VLC_EGENERIC;
 438     }
 439
 440     /* Grab an unused surface, in case none are, try the oldest
 441      * XXX using the oldest is a workaround in case a problem happens with ffmpeg */
 442     unsigned i, old;
 443     for (i = 0, old = 0; i < va->surface_count; i++) {
 444         vlc_va_surface_t *surface = &va->surface[i];
 445
 446         if (!surface->refcount)
 447             break;
 448
 449         if (surface->order < va->surface[old].order)
 450             old = i;
 451     }
 452     if (i >= va->surface_count)
 453         i = old;
 454
 455     vlc_va_surface_t *surface = &va->surface[i];
 456
 457     surface->refcount = 1;
 458     surface->order = va->surface_order++;
 459
 460     /* */
 461     for (int i = 0; i < 4; i++) {
 462         ff->data[i] = NULL;
 463         ff->linesize[i] = 0;
 464
 465         if (i == 0 || i == 3)
 466             ff->data[i] = (void*)surface->d3d;/* Yummie */
 467     }
 468     return VLC_SUCCESS;
 469 }
 470 static void Release(vlc_va_t *external, AVFrame *ff)
 471 {
 472     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 473     LPDIRECT3DSURFACE9 d3d = (LPDIRECT3DSURFACE9)(uintptr_t)ff->data[3];
 474
 475     for (unsigned i = 0; i < va->surface_count; i++) {
 476         vlc_va_surface_t *surface = &va->surface[i];
 477
 478         if (surface->d3d == d3d)
 479             surface->refcount--;
 480     }
 481 }
 482 static void Close(vlc_va_t *external)
 483 {
 484     vlc_va_dxva2_t *va = vlc_va_dxva2_Get(external);
 485
 486     DxDestroyVideoConversion(va);
 487     DxDestroyVideoDecoder(va);
 488     DxDestroyVideoService(va);
 489     D3dDestroyDeviceManager(va);
 490     D3dDestroyDevice(va);
 491
 492     if (va->hdxva2_dll)
 493         FreeLibrary(va->hdxva2_dll);
 494     if (va->hd3d9_dll)
 495         FreeLibrary(va->hd3d9_dll);
 496
 497     free(va->va.description);
 498     free(va);
 499 }
 500
 501 vlc_va_t *vlc_va_NewDxva2(vlc_object_t *log, int codec_id)
 502 {
 503     vlc_va_dxva2_t *va = calloc(1, sizeof(*va));
 504     if (!va)
 505         return NULL;
 506
 507     /* */
 508     va->log = log;
 509     va->codec_id = codec_id;
 510
 511     /* Load dll*/
 512     va->hd3d9_dll = LoadLibrary(TEXT("D3D9.DLL"));
 513     if (!va->hd3d9_dll) {
 514         msg_Warn(va->log, "cannot load d3d9.dll");
 515         goto error;
 516     }
 517     va->hdxva2_dll = LoadLibrary(TEXT("DXVA2.DLL"));
 518     if (!va->hdxva2_dll) {
 519         msg_Warn(va->log, "cannot load dxva2.dll");
 520         goto error;
 521     }
 522     msg_Dbg(va->log, "DLLs loaded");
 523
 524     /* */
 525     if (D3dCreateDevice(va)) {
 526         msg_Err(va->log, "Failed to create Direct3D device");
 527         goto error;
 528     }
 529     msg_Dbg(va->log, "D3dCreateDevice succeed");
 530
 531     if (D3dCreateDeviceManager(va)) {
 532         msg_Err(va->log, "D3dCreateDeviceManager failed");
 533         goto error;
 534     }
 535
 536     if (DxCreateVideoService(va)) {
 537         msg_Err(va->log, "DxCreateVideoService failed");
 538         goto error;
 539     }
 540
 541     /* */
 542     if (DxFindVideoServiceConversion(va, &va->input, &va->render)) {
 543         msg_Err(va->log, "DxFindVideoServiceConversion failed");
 544         goto error;
 545     }
 546
 547     /* TODO print the hardware name/vendor for debugging purposes */
 548     va->va.description = DxDescribe(va);
 549     va->va.setup   = Setup;
 550     va->va.get     = Get;
 551     va->va.release = Release;
 552     va->va.extract = Extract;
 553     va->va.close   = Close;
 554     return &va->va;
 555
 556 error:
 557     Close(&va->va);
 558     return NULL;
 559 }
 560 /* */
 561
 562 /**
 563  * It creates a Direct3D device usable for DXVA 2
 564  */
 565 static int D3dCreateDevice(vlc_va_dxva2_t *va)
 566 {
 567     /* */
 568     LPDIRECT3D9 (WINAPI *Create9)(UINT SDKVersion);
 569     Create9 = (void *)GetProcAddress(va->hd3d9_dll,
 570                                      TEXT("Direct3DCreate9"));
 571     if (!Create9) {
 572         msg_Err(va->log, "Cannot locate reference to Direct3DCreate9 ABI in DLL");
 573         return VLC_EGENERIC;
 574     }
 575
 576     /* */
 577     LPDIRECT3D9 d3dobj;
 578     d3dobj = Create9(D3D_SDK_VERSION);
 579     if (!d3dobj) {
 580         msg_Err(va->log, "Direct3DCreate9 failed");
 581         return VLC_EGENERIC;
 582     }
 583     va->d3dobj = d3dobj;
 584
 585     /* */
 586     D3DADAPTER_IDENTIFIER9 *d3dai = &va->d3dai;
 587     if (FAILED(IDirect3D9_GetAdapterIdentifier(va->d3dobj,
 588                                                D3DADAPTER_DEFAULT, 0, d3dai))) {
 589         msg_Warn(va->log, "IDirect3D9_GetAdapterIdentifier failed");
 590         ZeroMemory(d3dai, sizeof(*d3dai));
 591     }
 592
 593     /* */
 594     D3DPRESENT_PARAMETERS *d3dpp = &va->d3dpp;
 595     ZeroMemory(d3dpp, sizeof(*d3dpp));
 596     d3dpp->Flags                  = D3DPRESENTFLAG_VIDEO;
 597     d3dpp->Windowed               = TRUE;
 598     d3dpp->hDeviceWindow          = NULL;
 599     d3dpp->SwapEffect             = D3DSWAPEFFECT_DISCARD;
 600     d3dpp->MultiSampleType        = D3DMULTISAMPLE_NONE;
 601     d3dpp->PresentationInterval   = D3DPRESENT_INTERVAL_DEFAULT;
 602     d3dpp->BackBufferCount        = 0;                  /* FIXME what to put here */
 603     d3dpp->BackBufferFormat       = D3DFMT_X8R8G8B8;    /* FIXME what to put here */
 604     d3dpp->BackBufferWidth        = 0;
 605     d3dpp->BackBufferHeight       = 0;
 606     d3dpp->EnableAutoDepthStencil = FALSE;
 607
 608     /* Direct3D needs a HWND to create a device, even without using ::Present
 609     this HWND is used to alert Direct3D when there's a change of focus window.
 610     For now, use GetShellWindow, as it looks harmless */
 611     LPDIRECT3DDEVICE9 d3ddev;
 612     if (FAILED(IDirect3D9_CreateDevice(d3dobj, D3DADAPTER_DEFAULT,
 613                                        D3DDEVTYPE_HAL, GetShellWindow(),
 614                                        D3DCREATE_SOFTWARE_VERTEXPROCESSING |
 615                                        D3DCREATE_MULTITHREADED,
 616                                        d3dpp, &d3ddev))) {
 617         msg_Err(va->log, "IDirect3D9_CreateDevice failed");
 618         return VLC_EGENERIC;
 619     }
 620     va->d3ddev = d3ddev;
 621
 622     return VLC_SUCCESS;
 623 }
 624 /**
 625  * It releases a Direct3D device and its resources.
 626  */
 627 static void D3dDestroyDevice(vlc_va_dxva2_t *va)
 628 {
 629     if (va->d3ddev)
 630         IDirect3DDevice9_Release(va->d3ddev);
 631     if (va->d3dobj)
 632         IDirect3D9_Release(va->d3dobj);
 633 }
 634 /**
 635  * It describes our Direct3D object
 636  */
 637 static char *DxDescribe(vlc_va_dxva2_t *va)
 638 {
 639     static const struct {
 640         unsigned id;
 641         char     name[32];
 642     } vendors [] = {
 643         { 0x1002, "ATI" },
 644         { 0x10DE, "NVIDIA" },
 645         { 0x8086, "Intel" },
 646         { 0x5333, "S3 Graphics" },
 647         { 0, "" }
 648     };
 649     D3DADAPTER_IDENTIFIER9 *id = &va->d3dai;
 650
 651     const char *vendor = "Unknown";
 652     for (int i = 0; vendors[i].id != 0; i++) {
 653         if (vendors[i].id == id->VendorId) {
 654             vendor = vendors[i].name;
 655             break;
 656         }
 657     }
 658
 659     char *description;
 660     if (asprintf(&description, "DXVA2 (%.*s, vendor %d(%s), device %d, revision %d)",
 661                  sizeof(id->Description), id->Description,
 662                  id->VendorId, vendor, id->DeviceId, id->Revision) < 0)
 663         return NULL;
 664     return description;
 665 }
 666
 667 /**
 668  * It creates a Direct3D device manager
 669  */
 670 static int D3dCreateDeviceManager(vlc_va_dxva2_t *va)
 671 {
 672     HRESULT (WINAPI *CreateDeviceManager9)(UINT *pResetToken,
 673                                            IDirect3DDeviceManager9 **);
 674     CreateDeviceManager9 =
 675       (void *)GetProcAddress(va->hdxva2_dll,
 676                              TEXT("DXVA2CreateDirect3DDeviceManager9"));
 677
 678     if (!CreateDeviceManager9) {
 679         msg_Err(va->log, "cannot load function");
 680         return VLC_EGENERIC;
 681     }
 682     msg_Dbg(va->log, "OurDirect3DCreateDeviceManager9 Success!");
 683
 684     UINT token;
 685     IDirect3DDeviceManager9 *devmng;
 686     if (FAILED(CreateDeviceManager9(&token, &devmng))) {
 687         msg_Err(va->log, " OurDirect3DCreateDeviceManager9 failed");
 688         return VLC_EGENERIC;
 689     }
 690     va->token  = token;
 691     va->devmng = devmng;
 692     msg_Info(va->log, "obtained IDirect3DDeviceManager9");
 693
 694     HRESULT hr = IDirect3DDeviceManager9_ResetDevice(devmng, va->d3ddev, token);
 695     if (FAILED(hr)) {
 696         msg_Err(va->log, "IDirect3DDeviceManager9_ResetDevice failed: %08x", (unsigned)hr);
 697         return VLC_EGENERIC;
 698     }
 699     return VLC_SUCCESS;
 700 }
 701 /**
 702  * It destroys a Direct3D device manager
 703  */
 704 static void D3dDestroyDeviceManager(vlc_va_dxva2_t *va)
 705 {
 706     if (va->devmng)
 707         IDirect3DDeviceManager9_Release(va->devmng);
 708 }
 709
 710 /**
 711  * It creates a DirectX video service
 712  */
 713 static int DxCreateVideoService(vlc_va_dxva2_t *va)
 714 {
 715     HRESULT (WINAPI *CreateVideoService)(IDirect3DDevice9 *,
 716                                          REFIID riid,
 717                                          void **ppService);
 718     CreateVideoService =
 719       (void *)GetProcAddress(va->hdxva2_dll,
 720                              TEXT("DXVA2CreateVideoService"));
 721
 722     if (!CreateVideoService) {
 723         msg_Err(va->log, "cannot load function");
 724         return 4;
 725     }
 726     msg_Info(va->log, "DXVA2CreateVideoService Success!");
 727
 728     HRESULT hr;
 729
 730     HANDLE device;
 731     hr = IDirect3DDeviceManager9_OpenDeviceHandle(va->devmng, &device);
 732     if (FAILED(hr)) {
 733         msg_Err(va->log, "OpenDeviceHandle failed");
 734         return VLC_EGENERIC;
 735     }
 736     va->device = device;
 737
 738     IDirectXVideoDecoderService *vs;
 739     hr = IDirect3DDeviceManager9_GetVideoService(va->devmng, device,
 740                                                  &IID_IDirectXVideoDecoderService,
 741                                                  &vs);
 742     if (FAILED(hr)) {
 743         msg_Err(va->log, "GetVideoService failed");
 744         return VLC_EGENERIC;
 745     }
 746     va->vs = vs;
 747
 748     return VLC_SUCCESS;
 749 }
 750 /**
 751  * It destroys a DirectX video service
 752  */
 753 static void DxDestroyVideoService(vlc_va_dxva2_t *va)
 754 {
 755     if (va->device)
 756         IDirect3DDeviceManager9_CloseDeviceHandle(va->devmng, va->device);
 757     if (va->vs)
 758         IDirectXVideoDecoderService_Release(va->vs);
 759 }
 760 /**
 761  * Find the best suited decoder mode GUID and render format.
 762  */
 763 static int DxFindVideoServiceConversion(vlc_va_dxva2_t *va, GUID *input, D3DFORMAT *output)
 764 {
 765     /* Retreive supported modes from the decoder service */
 766     UINT input_count = 0;
 767     GUID *input_list = NULL;
 768     if (FAILED(IDirectXVideoDecoderService_GetDecoderDeviceGuids(va->vs,
 769                                                                  &input_count,
 770                                                                  &input_list))) {
 771         msg_Err(va->log, "IDirectXVideoDecoderService_GetDecoderDeviceGuids failed");
 772         return VLC_EGENERIC;
 773     }
 774     for (unsigned i = 0; i < input_count; i++) {
 775         const GUID *g = &input_list[i];
 776         const dxva2_mode_t *mode = Dxva2FindMode(g);
 777         if (mode) {
 778             msg_Dbg(va->log, "- '%s' is supported by hardware", mode->name);
 779         } else {
 780             msg_Warn(va->log, "- Unknown GUID = %08X-%04x-%04x-XXXX",
 781                      (unsigned)g->Data1, g->Data2, g->Data3);
 782         }
 783     }
 784
 785     /* Try all supported mode by our priority */
 786     for (unsigned i = 0; dxva2_modes[i].name; i++) {
 787         const dxva2_mode_t *mode = &dxva2_modes[i];
 788         if (!mode->codec || mode->codec != va->codec_id)
 789             continue;
 790
 791         /* */
 792         bool is_suported = false;
 793         for (const GUID *g = &input_list[0]; !is_suported && g < &input_list[input_count]; g++) {
 794             is_suported = IsEqualGUID(mode->guid, g);
 795         }
 796         if (!is_suported)
 797             continue;
 798
 799         /* */
 800         msg_Dbg(va->log, "Trying to use '%s' as input", mode->name);
 801         UINT      output_count = 0;
 802         D3DFORMAT *output_list = NULL;
 803         if (FAILED(IDirectXVideoDecoderService_GetDecoderRenderTargets(va->vs, mode->guid,
 804                                                                        &output_count,
 805                                                                        &output_list))) {
 806             msg_Err(va->log, "IDirectXVideoDecoderService_GetDecoderRenderTargets failed");
 807             continue;
 808         }
 809         for (unsigned j = 0; j < output_count; j++) {
 810             const D3DFORMAT f = output_list[j];
 811             const d3d_format_t *format = D3dFindFormat(f);
 812             if (format) {
 813                 msg_Dbg(va->log, "%s is supported for output", format->name);
 814             } else {
 815                 msg_Dbg(va->log, "%d is supported for output (%4.4s)", f, (const char*)&f);
 816             }
 817         }
 818
 819         /* */
 820         for (unsigned j = 0; d3d_formats[j].name; j++) {
 821             const d3d_format_t *format = &d3d_formats[j];
 822
 823             /* */
 824             bool is_suported = false;
 825             for (unsigned k = 0; !is_suported && k < output_count; k++) {
 826                 is_suported = format->format == output_list[k];
 827             }
 828             if (!is_suported)
 829                 continue;
 830
 831             /* We have our solution */
 832             msg_Dbg(va->log, "Using '%s' to decode to '%s'", mode->name, format->name);
 833             *input  = *mode->guid;
 834             *output = format->format;
 835             CoTaskMemFree(output_list);
 836             CoTaskMemFree(input_list);
 837             return VLC_SUCCESS;
 838         }
 839         CoTaskMemFree(output_list);
 840     }
 841     CoTaskMemFree(input_list);
 842     return VLC_EGENERIC;
 843 }
 844
 845 /**
 846  * It creates a DXVA2 decoder using the given video format
 847  */
 848 static int DxCreateVideoDecoder(vlc_va_dxva2_t *va,
 849                                 int codec_id, const video_format_t *fmt)
 850 {
 851     /* */
 852     msg_Dbg(va->log, "DxCreateVideoDecoder id %d %dx%d",
 853             codec_id, fmt->i_width, fmt->i_height);
 854
 855     va->width  = fmt->i_width;
 856     va->height = fmt->i_height;
 857
 858     /* Allocates all surfaces needed for the decoder */
 859     va->surface_width  = (fmt->i_width  + 15) & ~15;
 860     va->surface_height = (fmt->i_height + 15) & ~15;
 861     switch (codec_id) {
 862     case CODEC_ID_H264:
 863         va->surface_count = 16 + 1;
 864         break;
 865     default:
 866         va->surface_count = 2 + 1;
 867         break;
 868     }
 869     LPDIRECT3DSURFACE9 surface_list[VA_DXVA2_MAX_SURFACE_COUNT];
 870     if (FAILED(IDirectXVideoDecoderService_CreateSurface(va->vs,
 871                                                          va->surface_width,
 872                                                          va->surface_height,
 873                                                          va->surface_count - 1,
 874                                                          va->render,
 875                                                          D3DPOOL_DEFAULT,
 876                                                          0,
 877                                                          DXVA2_VideoDecoderRenderTarget,
 878                                                          surface_list,
 879                                                          NULL))) {
 880         msg_Err(va->log, "IDirectXVideoAccelerationService_CreateSurface failed");
 881         va->surface_count = 0;
 882         return VLC_EGENERIC;
 883     }
 884     for (unsigned i = 0; i < va->surface_count; i++) {
 885         vlc_va_surface_t *surface = &va->surface[i];
 886         surface->d3d = surface_list[i];
 887         surface->refcount = 0;
 888         surface->order = 0;
 889     }
 890     msg_Dbg(va->log, "IDirectXVideoAccelerationService_CreateSurface succeed with %d surfaces (%dx%d)",
 891             va->surface_count, fmt->i_width, fmt->i_height);
 892
 893     /* */
 894     DXVA2_VideoDesc dsc;
 895     ZeroMemory(&dsc, sizeof(dsc));
 896     dsc.SampleWidth     = fmt->i_width;
 897     dsc.SampleHeight    = fmt->i_height;
 898     dsc.Format          = va->render;
 899     if (fmt->i_frame_rate > 0 && fmt->i_frame_rate_base > 0) {
 900         dsc.InputSampleFreq.Numerator   = fmt->i_frame_rate;
 901         dsc.InputSampleFreq.Denominator = fmt->i_frame_rate_base;
 902     } else {
 903         dsc.InputSampleFreq.Numerator   = 0;
 904         dsc.InputSampleFreq.Denominator = 0;
 905     }
 906     dsc.OutputFrameFreq = dsc.InputSampleFreq;
 907     dsc.UABProtectionLevel = FALSE;
 908     dsc.Reserved = 0;
 909
 910     /* FIXME I am unsure we can let unknown everywhere */
 911     DXVA2_ExtendedFormat *ext = &dsc.SampleFormat;
 912     ext->SampleFormat = 0;//DXVA2_SampleUnknown;
 913     ext->VideoChromaSubsampling = 0;//DXVA2_VideoChromaSubsampling_Unknown;
 914     ext->NominalRange = 0;//DXVA2_NominalRange_Unknown;
 915     ext->VideoTransferMatrix = 0;//DXVA2_VideoTransferMatrix_Unknown;
 916     ext->VideoLighting = 0;//DXVA2_VideoLighting_Unknown;
 917     ext->VideoPrimaries = 0;//DXVA2_VideoPrimaries_Unknown;
 918     ext->VideoTransferFunction = 0;//DXVA2_VideoTransFunc_Unknown;
 919
 920     /* List all configurations available for the decoder */
 921     UINT                      cfg_count = 0;
 922     DXVA2_ConfigPictureDecode *cfg_list = NULL;
 923     if (FAILED(IDirectXVideoDecoderService_GetDecoderConfigurations(va->vs,
 924                                                                     &va->input,
 925                                                                     &dsc,
 926                                                                     NULL,
 927                                                                     &cfg_count,
 928                                                                     &cfg_list))) {
 929         msg_Err(va->log, "IDirectXVideoDecoderService_GetDecoderConfigurations failed");
 930         return VLC_EGENERIC;
 931     }
 932     msg_Dbg(va->log, "we got %d decoder configurations", cfg_count);
 933
 934     /* Select the best decoder configuration */
 935     int cfg_score = 0;
 936     for (unsigned i = 0; i < cfg_count; i++) {
 937         const DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
 938
 939         /* */
 940         msg_Dbg(va->log, "configuration[%d] ConfigBitstreamRaw %d",
 941                 i, cfg->ConfigBitstreamRaw);
 942
 943         /* */
 944         int score;
 945         if (cfg->ConfigBitstreamRaw == 1)
 946             score = 1;
 947         else if (codec_id == CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
 948             score = 2;
 949         else
 950             continue;
 951         if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA_NoEncrypt))
 952             score += 16;
 953
 954         if (cfg_score < score) {
 955             va->cfg = *cfg;
 956             cfg_score = score;
 957         }
 958     }
 959     CoTaskMemFree(cfg_list);
 960     if (cfg_score <= 0) {
 961         msg_Err(va->log, "Failed to find a supported decoder configuration");
 962         return VLC_EGENERIC;
 963     }
 964
 965     /* Create the decoder */
 966     IDirectXVideoDecoder *decoder;
 967     if (FAILED(IDirectXVideoDecoderService_CreateVideoDecoder(va->vs,
 968                                                               &va->input,
 969                                                               &dsc,
 970                                                               &va->cfg,
 971                                                               surface_list,
 972                                                               va->surface_count,
 973                                                               &decoder))) {
 974         msg_Err(va->log, "IDirectXVideoDecoderService_CreateVideoDecoder failed");
 975         return VLC_EGENERIC;
 976     }
 977     va->decoder = decoder;
 978     msg_Dbg(va->log, "IDirectXVideoDecoderService_CreateVideoDecoder succeed");
 979     return VLC_SUCCESS;
 980 }
 981 static void DxDestroyVideoDecoder(vlc_va_dxva2_t *va)
 982 {
 983     if (va->decoder)
 984         IDirectXVideoDecoder_Release(va->decoder);
 985     va->decoder = NULL;
 986
 987     for (unsigned i = 0; i < va->surface_count; i++)
 988         IDirect3DSurface9_Release(va->surface[i].d3d);
 989     va->surface_count = 0;
 990 }
 991 static int DxResetVideoDecoder(vlc_va_dxva2_t *va)
 992 {
 993     msg_Err(va->log, "DxResetVideoDecoder unimplemented");
 994     return VLC_EGENERIC;
 995 }
 996
 997 static void DxCreateVideoConversion(vlc_va_dxva2_t *va)
 998 {
 999     switch (va->render) {
1000     case MAKEFOURCC('N','V','1','2'):
1001         va->output = MAKEFOURCC('Y','V','1','2');
1002         break;
1003     default:
1004         va->output = va->render;
1005         break;
1006     }
1007     CopyInitCache(&va->surface_cache, va->surface_width);
1008 }
1009 static void DxDestroyVideoConversion(vlc_va_dxva2_t *va)
1010 {
1011     CopyCleanCache(&va->surface_cache);
1012 }
1013 #else
1014 vlc_va_t *vlc_va_NewDxva2(vlc_object_t *log, int codec_id)
1015 {
1016     (void)log;
1017     (void)codec_id;
1018     return NULL;
1019 }
1020 #endif