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 #include <assert.h>
  31
  32 #include <vlc_common.h>
  33 #include <vlc_picture.h>
  34 #include <vlc_plugin.h>
  35
  36 #define DXVA2API_USE_BITFIELDS
  37 #define COBJMACROS
  38 #include <libavcodec/dxva2.h>
  39 #include "../../video_chroma/d3d9_fmt.h"
  40
  41 #define D3D_Device          IDirect3DDevice9
  42 #define D3D_DecoderType     IDirectXVideoDecoder
  43 #define D3D_DecoderDevice   IDirectXVideoDecoderService
  44 #define D3D_DecoderSurface  IDirect3DSurface9
  45 #include "directx_va.h"
  46
  47 static int Open(vlc_va_t *, AVCodecContext *, enum PixelFormat,
  48                 const es_format_t *, picture_sys_t *p_sys);
  49 static void Close(vlc_va_t *, void **);
  50
  51 vlc_module_begin()
  52     set_description(N_("DirectX Video Acceleration (DXVA) 2.0"))
  53     set_capability("hw decoder", 0)
  54     set_category(CAT_INPUT)
  55     set_subcategory(SUBCAT_INPUT_VCODEC)
  56     set_callbacks(Open, Close)
  57 vlc_module_end()
  58
  59 #include <initguid.h> /* must be last included to not redefine existing GUIDs */
  60
  61 /* dxva2api.h GUIDs: http://msdn.microsoft.com/en-us/library/windows/desktop/ms697067(v=vs100).aspx
  62  * assume that they are declared in dxva2api.h */
  63 #define MS_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8)
  64
  65 #ifdef __MINGW32__
  66 # include <_mingw.h>
  67
  68 # if !defined(__MINGW64_VERSION_MAJOR)
  69 #  undef MS_GUID
  70 #  define MS_GUID DEFINE_GUID /* dxva2api.h fails to declare those, redefine as static */
  71 #  define DXVA2_E_NEW_VIDEO_DEVICE MAKE_HRESULT(1, 4, 4097)
  72 # else
  73 #  include <dxva.h>
  74 # endif
  75
  76 #endif /* __MINGW32__ */
  77
  78 MS_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551, 0xd5e7, 0x11d9, 0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
  79 MS_GUID(IID_IDirectXVideoAccelerationService, 0xfc51a550, 0xd5e7, 0x11d9, 0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
  80
  81 DEFINE_GUID(DXVA2_NoEncrypt,                        0x1b81bed0, 0xa0c7, 0x11d3, 0xb9, 0x84, 0x00, 0xc0, 0x4f, 0x2e, 0x73, 0xc5);
  82
  83 DEFINE_GUID(DXVA_Intel_H264_NoFGT_ClearVideo,       0x604F8E68, 0x4951, 0x4c54, 0x88, 0xFE, 0xAB, 0xD2, 0x5C, 0x15, 0xB3, 0xD6);
  84
  85
  86 /* */
  87 typedef struct {
  88     const char   *name;
  89     D3DFORMAT    format;
  90     vlc_fourcc_t codec;
  91 } d3d_format_t;
  92 /* XXX Prefered format must come first */
  93 static const d3d_format_t d3d_formats[] = {
  94     { "YV12",   MAKEFOURCC('Y','V','1','2'),    VLC_CODEC_YV12 },
  95     { "NV12",   MAKEFOURCC('N','V','1','2'),    VLC_CODEC_NV12 },
  96     { "IMC3",   MAKEFOURCC('I','M','C','3'),    VLC_CODEC_YV12 },
  97     { "P010",   MAKEFOURCC('P','0','1','0'),    VLC_CODEC_P010 },
  98
  99     { NULL, 0, 0 }
 100 };
 101
 102 static const d3d_format_t *D3dFindFormat(D3DFORMAT format)
 103 {
 104     for (unsigned i = 0; d3d_formats[i].name; i++) {
 105         if (d3d_formats[i].format == format)
 106             return &d3d_formats[i];
 107     }
 108     return NULL;
 109 }
 110
 111 struct vlc_va_sys_t
 112 {
 113     directx_sys_t         dx_sys;
 114     vlc_fourcc_t          i_chroma;
 115
 116     /* DLL */
 117     HINSTANCE             hd3d9_dll;
 118
 119     /* Direct3D */
 120     LPDIRECT3D9            d3dobj;
 121     D3DADAPTER_IDENTIFIER9 d3dai;
 122
 123     /* Device manager */
 124     IDirect3DDeviceManager9  *devmng;
 125     HANDLE                   device;
 126
 127     /* Video service */
 128     D3DFORMAT                    render;
 129
 130     /* Video decoder */
 131     DXVA2_ConfigPictureDecode    cfg;
 132
 133     /* avcodec internals */
 134     struct dxva_context hw;
 135 };
 136
 137
 138 /* */
 139 static int D3dCreateDevice(vlc_va_t *);
 140 static void D3dDestroyDevice(vlc_va_t *);
 141 static char *DxDescribe(vlc_va_sys_t *);
 142
 143 static int D3dCreateDeviceManager(vlc_va_t *);
 144 static void D3dDestroyDeviceManager(vlc_va_t *);
 145
 146 static int DxCreateVideoService(vlc_va_t *);
 147 static void DxDestroyVideoService(vlc_va_t *);
 148 static int DxGetInputList(vlc_va_t *, input_list_t *);
 149 static int DxSetupOutput(vlc_va_t *, const GUID *, const video_format_t *);
 150
 151 static int DxCreateVideoDecoder(vlc_va_t *, int codec_id,
 152                                 const video_format_t *, unsigned surface_count);
 153 static void DxDestroyVideoDecoder(vlc_va_t *);
 154 static int DxResetVideoDecoder(vlc_va_t *);
 155 static void SetupAVCodecContext(vlc_va_t *);
 156
 157 /* */
 158 static void Setup(vlc_va_t *va, vlc_fourcc_t *chroma)
 159 {
 160     *chroma = va->sys->i_chroma;
 161 }
 162
 163 void SetupAVCodecContext(vlc_va_t *va)
 164 {
 165     vlc_va_sys_t *sys = va->sys;
 166     directx_sys_t *dx_sys = &sys->dx_sys;
 167
 168     sys->hw.decoder = dx_sys->decoder;
 169     sys->hw.cfg = &sys->cfg;
 170     sys->hw.surface_count = dx_sys->va_pool.surface_count;
 171     sys->hw.surface = dx_sys->hw_surface;
 172
 173     if (IsEqualGUID(&dx_sys->input, &DXVA_Intel_H264_NoFGT_ClearVideo))
 174         sys->hw.workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
 175 }
 176
 177 static int Extract(vlc_va_t *va, picture_t *picture, uint8_t *data)
 178 {
 179     VLC_UNUSED(va); VLC_UNUSED(data);
 180     struct va_pic_context *pic_ctx = (struct va_pic_context*)picture->context;
 181     va_surface_AddRef(pic_ctx->va_surface);
 182     return VLC_SUCCESS;
 183 }
 184
 185 static void d3d9_pic_context_destroy(struct picture_context_t *opaque)
 186 {
 187     struct va_pic_context *pic_ctx = (struct va_pic_context*)opaque;
 188     if (pic_ctx->va_surface)
 189     {
 190         ReleasePictureSys(&pic_ctx->picsys);
 191         va_surface_Release(pic_ctx->va_surface);
 192         free(pic_ctx);
 193     }
 194 }
 195
 196 static struct va_pic_context *CreatePicContext(IDirect3DSurface9 *);
 197
 198 static struct picture_context_t *d3d9_pic_context_copy(struct picture_context_t *ctx)
 199 {
 200     struct va_pic_context *src_ctx = (struct va_pic_context*)ctx;
 201     struct va_pic_context *pic_ctx = CreatePicContext(src_ctx->picsys.surface);
 202     if (unlikely(pic_ctx==NULL))
 203         return NULL;
 204     pic_ctx->va_surface = src_ctx->va_surface;
 205     va_surface_AddRef(pic_ctx->va_surface);
 206     return &pic_ctx->s;
 207 }
 208
 209 static struct va_pic_context *CreatePicContext(IDirect3DSurface9 *surface)
 210 {
 211     struct va_pic_context *pic_ctx = calloc(1, sizeof(*pic_ctx));
 212     if (unlikely(pic_ctx==NULL))
 213         return NULL;
 214     pic_ctx->s.destroy = d3d9_pic_context_destroy;
 215     pic_ctx->s.copy    = d3d9_pic_context_copy;
 216     pic_ctx->picsys.surface = surface;
 217     AcquirePictureSys(&pic_ctx->picsys);
 218     return pic_ctx;
 219 }
 220
 221 static struct va_pic_context* NewSurfacePicContext(vlc_va_t *va, int surface_index)
 222 {
 223     directx_sys_t *dx_sys = &va->sys->dx_sys;
 224     return CreatePicContext(dx_sys->hw_surface[surface_index]);
 225 }
 226
 227 static int Get(vlc_va_t *va, picture_t *pic, uint8_t **data)
 228 {
 229     vlc_va_sys_t *sys = va->sys;
 230
 231     /* Check the device */
 232     HRESULT hr = IDirect3DDeviceManager9_TestDevice(sys->devmng, sys->device);
 233     if (hr == DXVA2_E_NEW_VIDEO_DEVICE) {
 234         if (DxResetVideoDecoder(va))
 235             return VLC_EGENERIC;
 236     } else if (FAILED(hr)) {
 237         msg_Err(va, "IDirect3DDeviceManager9_TestDevice %u", (unsigned)hr);
 238         return VLC_EGENERIC;
 239     }
 240
 241     int res = va_pool_Get(&sys->dx_sys.va_pool, pic);
 242     if (likely(res==VLC_SUCCESS))
 243         *data = (uint8_t*)((struct va_pic_context*)pic->context)->picsys.surface;
 244     return res;
 245 }
 246
 247 static void Close(vlc_va_t *va, void **ctx)
 248 {
 249     vlc_va_sys_t *sys = va->sys;
 250
 251     (void) ctx;
 252
 253     directx_va_Close(va, &sys->dx_sys);
 254
 255     if (sys->hd3d9_dll)
 256         FreeLibrary(sys->hd3d9_dll);
 257
 258     free((char *)va->description);
 259     free(sys);
 260 }
 261
 262 static vlc_fourcc_t d3d9va_fourcc(enum PixelFormat swfmt)
 263 {
 264     switch (swfmt)
 265     {
 266         case AV_PIX_FMT_YUV420P10LE:
 267             return VLC_CODEC_D3D9_OPAQUE_10B;
 268         case AV_PIX_FMT_YUVJ420P:
 269         case AV_PIX_FMT_YUV420P:
 270             return VLC_CODEC_D3D9_OPAQUE;
 271         default:
 272             return VLC_CODEC_D3D9_OPAQUE;
 273     }
 274 }
 275
 276 static void ReleasePic(void *opaque, uint8_t *data)
 277 {
 278     (void)data;
 279     picture_t *pic = opaque;
 280     struct va_pic_context *pic_ctx = (struct va_pic_context*)pic->context;
 281     va_surface_Release(pic_ctx->va_surface);
 282     picture_Release(pic);
 283 }
 284
 285 static int Open(vlc_va_t *va, AVCodecContext *ctx, enum PixelFormat pix_fmt,
 286                 const es_format_t *fmt, picture_sys_t *p_sys)
 287 {
 288     int err = VLC_EGENERIC;
 289     directx_sys_t *dx_sys;
 290
 291     if (pix_fmt != AV_PIX_FMT_DXVA2_VLD)
 292         return VLC_EGENERIC;
 293
 294     ctx->hwaccel_context = NULL;
 295
 296     vlc_va_sys_t *sys = calloc(1, sizeof (*sys));
 297     if (unlikely(sys == NULL))
 298         return VLC_ENOMEM;
 299
 300     /* Load dll*/
 301     sys->hd3d9_dll = LoadLibrary(TEXT("D3D9.DLL"));
 302     if (!sys->hd3d9_dll) {
 303         msg_Warn(va, "cannot load d3d9.dll");
 304         goto error;
 305     }
 306
 307     dx_sys = &sys->dx_sys;
 308
 309     dx_sys->va_pool.pf_create_device           = D3dCreateDevice;
 310     dx_sys->va_pool.pf_destroy_device          = D3dDestroyDevice;
 311     dx_sys->va_pool.pf_create_device_manager   = D3dCreateDeviceManager;
 312     dx_sys->va_pool.pf_destroy_device_manager  = D3dDestroyDeviceManager;
 313     dx_sys->va_pool.pf_create_video_service    = DxCreateVideoService;
 314     dx_sys->va_pool.pf_destroy_video_service   = DxDestroyVideoService;
 315     dx_sys->va_pool.pf_create_decoder_surfaces = DxCreateVideoDecoder;
 316     dx_sys->va_pool.pf_destroy_surfaces        = DxDestroyVideoDecoder;
 317     dx_sys->va_pool.pf_setup_avcodec_ctx       = SetupAVCodecContext;
 318     dx_sys->va_pool.pf_new_surface_context     = NewSurfacePicContext;
 319     dx_sys->pf_get_input_list          = DxGetInputList;
 320     dx_sys->pf_setup_output            = DxSetupOutput;
 321     dx_sys->psz_decoder_dll            = TEXT("DXVA2.DLL");
 322
 323     va->sys = sys;
 324
 325     dx_sys->d3ddev = NULL;
 326     if (p_sys!=NULL)
 327     {
 328         D3DSURFACE_DESC src;
 329         if (SUCCEEDED(IDirect3DSurface9_GetDesc(p_sys->surface, &src)))
 330             sys->render = src.Format;
 331         IDirect3DSurface9_GetDevice(p_sys->surface, &dx_sys->d3ddev );
 332     }
 333
 334     sys->i_chroma = d3d9va_fourcc(ctx->sw_pix_fmt);
 335
 336     err = directx_va_Open(va, &sys->dx_sys, true);
 337     if (err!=VLC_SUCCESS)
 338         goto error;
 339
 340     err = directx_va_Setup(va, &sys->dx_sys, ctx, fmt);
 341     if (err != VLC_SUCCESS)
 342         goto error;
 343
 344     ctx->hwaccel_context = &sys->hw;
 345
 346     /* TODO print the hardware name/vendor for debugging purposes */
 347     va->description = DxDescribe(sys);
 348     va->setup   = Setup;
 349     va->get     = Get;
 350     va->release = ReleasePic;
 351     va->extract = Extract;
 352     return VLC_SUCCESS;
 353
 354 error:
 355     Close(va, NULL);
 356     return VLC_EGENERIC;
 357 }
 358 /* */
 359
 360 /**
 361  * It creates a Direct3D device usable for DXVA 2
 362  */
 363 static int D3dCreateDevice(vlc_va_t *va)
 364 {
 365     vlc_va_sys_t *sys = va->sys;
 366
 367     if (sys->dx_sys.d3ddev) {
 368         msg_Dbg(va, "Reusing Direct3D9 device");
 369         IDirect3DDevice9_AddRef(sys->dx_sys.d3ddev);
 370         return VLC_SUCCESS;
 371     }
 372
 373     /* */
 374     LPDIRECT3D9 (WINAPI *Create9)(UINT SDKVersion);
 375     Create9 = (void *)GetProcAddress(sys->hd3d9_dll, "Direct3DCreate9");
 376     if (!Create9) {
 377         msg_Err(va, "Cannot locate reference to Direct3DCreate9 ABI in DLL");
 378         return VLC_EGENERIC;
 379     }
 380
 381     /* */
 382     LPDIRECT3D9 d3dobj;
 383     d3dobj = Create9(D3D_SDK_VERSION);
 384     if (!d3dobj) {
 385         msg_Err(va, "Direct3DCreate9 failed");
 386         return VLC_EGENERIC;
 387     }
 388     sys->d3dobj = d3dobj;
 389
 390     /* */
 391     D3DADAPTER_IDENTIFIER9 *d3dai = &sys->d3dai;
 392     if (FAILED(IDirect3D9_GetAdapterIdentifier(sys->d3dobj,
 393                                                D3DADAPTER_DEFAULT, 0, d3dai))) {
 394         msg_Warn(va, "IDirect3D9_GetAdapterIdentifier failed");
 395         ZeroMemory(d3dai, sizeof(*d3dai));
 396     }
 397
 398     /* */
 399     D3DPRESENT_PARAMETERS d3dpp;
 400     ZeroMemory(&d3dpp, sizeof(d3dpp));
 401     d3dpp.Flags                  = D3DPRESENTFLAG_VIDEO;
 402     d3dpp.Windowed               = TRUE;
 403     d3dpp.hDeviceWindow          = NULL;
 404     d3dpp.SwapEffect             = D3DSWAPEFFECT_DISCARD;
 405     d3dpp.MultiSampleType        = D3DMULTISAMPLE_NONE;
 406     d3dpp.PresentationInterval   = D3DPRESENT_INTERVAL_DEFAULT;
 407     d3dpp.BackBufferCount        = 0;                  /* FIXME what to put here */
 408     d3dpp.BackBufferFormat       = D3DFMT_X8R8G8B8;    /* FIXME what to put here */
 409     d3dpp.BackBufferWidth        = 0;
 410     d3dpp.BackBufferHeight       = 0;
 411     d3dpp.EnableAutoDepthStencil = FALSE;
 412
 413     /* Direct3D needs a HWND to create a device, even without using ::Present
 414     this HWND is used to alert Direct3D when there's a change of focus window.
 415     For now, use GetDesktopWindow, as it looks harmless */
 416     LPDIRECT3DDEVICE9 d3ddev;
 417     if (FAILED(IDirect3D9_CreateDevice(d3dobj, D3DADAPTER_DEFAULT,
 418                                        D3DDEVTYPE_HAL, GetDesktopWindow(),
 419                                        D3DCREATE_SOFTWARE_VERTEXPROCESSING |
 420                                        D3DCREATE_MULTITHREADED,
 421                                        &d3dpp, &d3ddev))) {
 422         msg_Err(va, "IDirect3D9_CreateDevice failed");
 423         return VLC_EGENERIC;
 424     }
 425     sys->dx_sys.d3ddev = d3ddev;
 426
 427     return VLC_SUCCESS;
 428 }
 429
 430 /**
 431  * It releases a Direct3D device and its resources.
 432  */
 433 static void D3dDestroyDevice(vlc_va_t *va)
 434 {
 435     directx_sys_t *dx_sys = &va->sys->dx_sys;
 436     if (va->sys->d3dobj)
 437         IDirect3D9_Release(va->sys->d3dobj);
 438     if (dx_sys->d3ddev)
 439         IDirect3DDevice9_Release(dx_sys->d3ddev);
 440 }
 441 /**
 442  * It describes our Direct3D object
 443  */
 444 static char *DxDescribe(vlc_va_sys_t *va)
 445 {
 446     static const struct {
 447         unsigned id;
 448         char     name[32];
 449     } vendors [] = {
 450         { 0x1002, "ATI" },
 451         { 0x10DE, "NVIDIA" },
 452         { 0x1106, "VIA" },
 453         { 0x8086, "Intel" },
 454         { 0x5333, "S3 Graphics" },
 455         { 0, "" }
 456     };
 457     D3DADAPTER_IDENTIFIER9 *id = &va->d3dai;
 458
 459     const char *vendor = "Unknown";
 460     for (int i = 0; vendors[i].id != 0; i++) {
 461         if (vendors[i].id == id->VendorId) {
 462             vendor = vendors[i].name;
 463             break;
 464         }
 465     }
 466
 467     char *description;
 468     if (asprintf(&description, "DXVA2 (%.*s, vendor %lu(%s), device %lu, revision %lu)",
 469                  (int)sizeof(id->Description), id->Description,
 470                  id->VendorId, vendor, id->DeviceId, id->Revision) < 0)
 471         return NULL;
 472     return description;
 473 }
 474
 475 /**
 476  * It creates a Direct3D device manager
 477  */
 478 static int D3dCreateDeviceManager(vlc_va_t *va)
 479 {
 480     vlc_va_sys_t *sys = va->sys;
 481     directx_sys_t *dx_sys = &va->sys->dx_sys;
 482
 483     HRESULT (WINAPI *CreateDeviceManager9)(UINT *pResetToken,
 484                                            IDirect3DDeviceManager9 **);
 485     CreateDeviceManager9 =
 486       (void *)GetProcAddress(dx_sys->hdecoder_dll,
 487                              "DXVA2CreateDirect3DDeviceManager9");
 488
 489     if (!CreateDeviceManager9) {
 490         msg_Err(va, "cannot load function");
 491         return VLC_EGENERIC;
 492     }
 493     msg_Dbg(va, "OurDirect3DCreateDeviceManager9 Success!");
 494
 495     UINT token;
 496     IDirect3DDeviceManager9 *devmng;
 497     if (FAILED(CreateDeviceManager9(&token, &devmng))) {
 498         msg_Err(va, " OurDirect3DCreateDeviceManager9 failed");
 499         return VLC_EGENERIC;
 500     }
 501     sys->devmng = devmng;
 502     msg_Info(va, "obtained IDirect3DDeviceManager9");
 503
 504     HRESULT hr = IDirect3DDeviceManager9_ResetDevice(devmng, dx_sys->d3ddev, token);
 505     if (FAILED(hr)) {
 506         msg_Err(va, "IDirect3DDeviceManager9_ResetDevice failed: %08x", (unsigned)hr);
 507         return VLC_EGENERIC;
 508     }
 509     return VLC_SUCCESS;
 510 }
 511 /**
 512  * It destroys a Direct3D device manager
 513  */
 514 static void D3dDestroyDeviceManager(vlc_va_t *va)
 515 {
 516     if (va->sys->devmng)
 517         IDirect3DDeviceManager9_Release(va->sys->devmng);
 518 }
 519
 520 /**
 521  * It creates a DirectX video service
 522  */
 523 static int DxCreateVideoService(vlc_va_t *va)
 524 {
 525     vlc_va_sys_t *sys = va->sys;
 526     directx_sys_t *dx_sys = &va->sys->dx_sys;
 527
 528     HRESULT (WINAPI *CreateVideoService)(IDirect3DDevice9 *,
 529                                          REFIID riid,
 530                                          void **ppService);
 531     CreateVideoService =
 532       (void *)GetProcAddress(dx_sys->hdecoder_dll, "DXVA2CreateVideoService");
 533
 534     if (!CreateVideoService) {
 535         msg_Err(va, "cannot load function");
 536         return 4;
 537     }
 538     msg_Info(va, "DXVA2CreateVideoService Success!");
 539
 540     HRESULT hr;
 541
 542     HANDLE device;
 543     hr = IDirect3DDeviceManager9_OpenDeviceHandle(sys->devmng, &device);
 544     if (FAILED(hr)) {
 545         msg_Err(va, "OpenDeviceHandle failed");
 546         return VLC_EGENERIC;
 547     }
 548     sys->device = device;
 549
 550     void *pv;
 551     hr = IDirect3DDeviceManager9_GetVideoService(sys->devmng, device,
 552                                         &IID_IDirectXVideoDecoderService, &pv);
 553     if (FAILED(hr)) {
 554         msg_Err(va, "GetVideoService failed");
 555         return VLC_EGENERIC;
 556     }
 557     dx_sys->d3ddec = pv;
 558
 559     return VLC_SUCCESS;
 560 }
 561
 562 /**
 563  * It destroys a DirectX video service
 564  */
 565 static void DxDestroyVideoService(vlc_va_t *va)
 566 {
 567     directx_sys_t *dx_sys = &va->sys->dx_sys;
 568     if (va->sys->device)
 569         IDirect3DDeviceManager9_CloseDeviceHandle(va->sys->devmng, va->sys->device);
 570     if (dx_sys->d3ddec)
 571         IDirectXVideoDecoderService_Release(dx_sys->d3ddec);
 572 }
 573
 574 static void ReleaseInputList(input_list_t *p_list)
 575 {
 576     CoTaskMemFree(p_list->list);
 577 }
 578
 579 static int DxGetInputList(vlc_va_t *va, input_list_t *p_list)
 580 {
 581     directx_sys_t *dx_sys = &va->sys->dx_sys;
 582     UINT input_count = 0;
 583     GUID *input_list = NULL;
 584     if (FAILED(IDirectXVideoDecoderService_GetDecoderDeviceGuids(dx_sys->d3ddec,
 585                                                                  &input_count,
 586                                                                  &input_list))) {
 587         msg_Err(va, "IDirectXVideoDecoderService_GetDecoderDeviceGuids failed");
 588         return VLC_EGENERIC;
 589     }
 590
 591     p_list->count = input_count;
 592     p_list->list = input_list;
 593     p_list->pf_release = ReleaseInputList;
 594     return VLC_SUCCESS;
 595 }
 596
 597 static int DxSetupOutput(vlc_va_t *va, const GUID *input, const video_format_t *fmt)
 598 {
 599     VLC_UNUSED(fmt);
 600     int err = VLC_EGENERIC;
 601     UINT      output_count = 0;
 602     D3DFORMAT *output_list = NULL;
 603     if (FAILED(IDirectXVideoDecoderService_GetDecoderRenderTargets(va->sys->dx_sys.d3ddec,
 604                                                                    input,
 605                                                                    &output_count,
 606                                                                    &output_list))) {
 607         msg_Err(va, "IDirectXVideoDecoderService_GetDecoderRenderTargets failed");
 608         return VLC_EGENERIC;
 609     }
 610
 611     for (unsigned j = 0; j < output_count; j++) {
 612         const D3DFORMAT f = output_list[j];
 613         const d3d_format_t *format = D3dFindFormat(f);
 614         if (format) {
 615             msg_Dbg(va, "%s is supported for output", format->name);
 616         } else {
 617             msg_Dbg(va, "%d is supported for output (%4.4s)", f, (const char*)&f);
 618         }
 619     }
 620
 621     /* */
 622     for (unsigned pass = 0; pass < 2 && err != VLC_SUCCESS; ++pass)
 623     {
 624         for (unsigned j = 0; d3d_formats[j].name; j++) {
 625             const d3d_format_t *format = &d3d_formats[j];
 626
 627             /* */
 628             bool is_supported = false;
 629             for (unsigned k = 0; !is_supported && k < output_count; k++) {
 630                 is_supported = format->format == output_list[k];
 631             }
 632             if (!is_supported)
 633                 continue;
 634             if (pass == 0 && format->format != va->sys->render)
 635                 continue;
 636
 637             /* We have our solution */
 638             msg_Dbg(va, "Using decoder output '%s'", format->name);
 639             va->sys->render = format->format;
 640             err = VLC_SUCCESS;
 641             break;
 642         }
 643     }
 644     CoTaskMemFree(output_list);
 645     return err;
 646 }
 647
 648 /**
 649  * It creates a DXVA2 decoder using the given video format
 650  */
 651 static int DxCreateVideoDecoder(vlc_va_t *va, int codec_id,
 652                                 const video_format_t *fmt, unsigned surface_count)
 653 {
 654     vlc_va_sys_t *p_sys = va->sys;
 655     directx_sys_t *sys = &va->sys->dx_sys;
 656     HRESULT hr;
 657
 658     hr = IDirectXVideoDecoderService_CreateSurface(sys->d3ddec,
 659                                                          fmt->i_width,
 660                                                          fmt->i_width,
 661                                                          surface_count - 1,
 662                                                          p_sys->render,
 663                                                          D3DPOOL_DEFAULT,
 664                                                          0,
 665                                                          DXVA2_VideoDecoderRenderTarget,
 666                                                          sys->hw_surface,
 667                                                          NULL);
 668     if (FAILED(hr)) {
 669         msg_Err(va, "IDirectXVideoAccelerationService_CreateSurface %d failed (hr=0x%0lx)", surface_count - 1, hr);
 670         return VLC_EGENERIC;
 671     }
 672     msg_Dbg(va, "IDirectXVideoAccelerationService_CreateSurface succeed with %d surfaces (%dx%d)",
 673             surface_count, fmt->i_width, fmt->i_height);
 674
 675     IDirect3DSurface9 *tstCrash;
 676     hr = IDirectXVideoDecoderService_CreateSurface(sys->d3ddec,
 677                                                          fmt->i_width,
 678                                                          fmt->i_width,
 679                                                          0,
 680                                                          p_sys->render,
 681                                                          D3DPOOL_DEFAULT,
 682                                                          0,
 683                                                          DXVA2_VideoDecoderRenderTarget,
 684                                                          &tstCrash,
 685                                                          NULL);
 686     if (FAILED(hr)) {
 687         msg_Err(va, "extra buffer impossible, avoid a crash (hr=0x%0lx)", hr);
 688         for (unsigned i = 0; i < surface_count; i++)
 689             IDirect3DSurface9_Release( sys->hw_surface[i] );
 690         return VLC_EGENERIC;
 691     }
 692     IDirect3DSurface9_Release(tstCrash);
 693
 694     /* */
 695     DXVA2_VideoDesc dsc;
 696     ZeroMemory(&dsc, sizeof(dsc));
 697     dsc.SampleWidth     = fmt->i_width;
 698     dsc.SampleHeight    = fmt->i_height;
 699     dsc.Format          = p_sys->render;
 700     if (fmt->i_frame_rate > 0 && fmt->i_frame_rate_base > 0) {
 701         dsc.InputSampleFreq.Numerator   = fmt->i_frame_rate;
 702         dsc.InputSampleFreq.Denominator = fmt->i_frame_rate_base;
 703     } else {
 704         dsc.InputSampleFreq.Numerator   = 0;
 705         dsc.InputSampleFreq.Denominator = 0;
 706     }
 707     dsc.OutputFrameFreq = dsc.InputSampleFreq;
 708     dsc.UABProtectionLevel = FALSE;
 709     dsc.Reserved = 0;
 710
 711     /* FIXME I am unsure we can let unknown everywhere */
 712     DXVA2_ExtendedFormat *ext = &dsc.SampleFormat;
 713     ext->SampleFormat = 0;//DXVA2_SampleUnknown;
 714     ext->VideoChromaSubsampling = 0;//DXVA2_VideoChromaSubsampling_Unknown;
 715     ext->NominalRange = 0;//DXVA2_NominalRange_Unknown;
 716     ext->VideoTransferMatrix = 0;//DXVA2_VideoTransferMatrix_Unknown;
 717     ext->VideoLighting = 0;//DXVA2_VideoLighting_Unknown;
 718     ext->VideoPrimaries = 0;//DXVA2_VideoPrimaries_Unknown;
 719     ext->VideoTransferFunction = 0;//DXVA2_VideoTransFunc_Unknown;
 720
 721     /* List all configurations available for the decoder */
 722     UINT                      cfg_count = 0;
 723     DXVA2_ConfigPictureDecode *cfg_list = NULL;
 724     if (FAILED(IDirectXVideoDecoderService_GetDecoderConfigurations(sys->d3ddec,
 725                                                                     &sys->input,
 726                                                                     &dsc,
 727                                                                     NULL,
 728                                                                     &cfg_count,
 729                                                                     &cfg_list))) {
 730         msg_Err(va, "IDirectXVideoDecoderService_GetDecoderConfigurations failed");
 731         for (unsigned i = 0; i < surface_count; i++)
 732             IDirect3DSurface9_Release( sys->hw_surface[i] );
 733         return VLC_EGENERIC;
 734     }
 735     msg_Dbg(va, "we got %d decoder configurations", cfg_count);
 736
 737     /* Select the best decoder configuration */
 738     int cfg_score = 0;
 739     for (unsigned i = 0; i < cfg_count; i++) {
 740         const DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
 741
 742         /* */
 743         msg_Dbg(va, "configuration[%d] ConfigBitstreamRaw %d",
 744                 i, cfg->ConfigBitstreamRaw);
 745
 746         /* */
 747         int score;
 748         if (cfg->ConfigBitstreamRaw == 1)
 749             score = 1;
 750         else if (codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
 751             score = 2;
 752         else
 753             continue;
 754         if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA2_NoEncrypt))
 755             score += 16;
 756
 757         if (cfg_score < score) {
 758             p_sys->cfg = *cfg;
 759             cfg_score = score;
 760         }
 761     }
 762     CoTaskMemFree(cfg_list);
 763     if (cfg_score <= 0) {
 764         msg_Err(va, "Failed to find a supported decoder configuration");
 765         return VLC_EGENERIC;
 766     }
 767
 768     /* Create the decoder */
 769     IDirectXVideoDecoder *decoder;
 770     if (FAILED(IDirectXVideoDecoderService_CreateVideoDecoder(sys->d3ddec,
 771                                                               &sys->input,
 772                                                               &dsc,
 773                                                               &p_sys->cfg,
 774                                                               sys->hw_surface,
 775                                                               surface_count,
 776                                                               &decoder))) {
 777         msg_Err(va, "IDirectXVideoDecoderService_CreateVideoDecoder failed");
 778         for (unsigned i = 0; i < surface_count; i++)
 779             IDirect3DSurface9_Release( sys->hw_surface[i] );
 780         return VLC_EGENERIC;
 781     }
 782     sys->decoder = decoder;
 783
 784     msg_Dbg(va, "IDirectXVideoDecoderService_CreateVideoDecoder succeed");
 785     return VLC_SUCCESS;
 786 }
 787
 788 static void DxDestroyVideoDecoder(vlc_va_t *va)
 789 {
 790     directx_sys_t *dx_sys = &va->sys->dx_sys;
 791     if (dx_sys->decoder)
 792     {
 793         IDirectXVideoDecoder_Release(dx_sys->decoder);
 794         dx_sys->decoder = NULL;
 795     }
 796 }
 797
 798 static int DxResetVideoDecoder(vlc_va_t *va)
 799 {
 800     msg_Err(va, "DxResetVideoDecoder unimplemented");
 801     return VLC_EGENERIC;
 802 }