git.sesse.net Git - ffmpeg/blob - libavutil/hwcontext_dxva2.c

   1 /*
   2  * This file is part of Libav.
   3  *
   4  * Libav is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * Libav is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with Libav; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #include <windows.h>
  20
  21 #if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600
  22 #undef _WIN32_WINNT
  23 #define _WIN32_WINNT 0x0600
  24 #endif
  25 #define DXVA2API_USE_BITFIELDS
  26 #define COBJMACROS
  27
  28 #include <d3d9.h>
  29 #include <dxva2api.h>
  30 #include <initguid.h>
  31
  32 #include "common.h"
  33 #include "hwcontext.h"
  34 #include "hwcontext_dxva2.h"
  35 #include "hwcontext_internal.h"
  36 #include "imgutils.h"
  37 #include "pixdesc.h"
  38 #include "pixfmt.h"
  39
  40 typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
  41 typedef HRESULT WINAPI pDirect3DCreate9Ex(UINT, IDirect3D9Ex **);
  42 typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
  43
  44 #define FF_D3DCREATE_FLAGS (D3DCREATE_SOFTWARE_VERTEXPROCESSING | \
  45                             D3DCREATE_MULTITHREADED | \
  46                             D3DCREATE_FPU_PRESERVE)
  47
  48 static const D3DPRESENT_PARAMETERS dxva2_present_params = {
  49     .Windowed         = TRUE,
  50     .BackBufferWidth  = 640,
  51     .BackBufferHeight = 480,
  52     .BackBufferCount  = 0,
  53     .SwapEffect       = D3DSWAPEFFECT_DISCARD,
  54     .Flags            = D3DPRESENTFLAG_VIDEO,
  55 };
  56
  57 typedef struct DXVA2Mapping {
  58     uint32_t palette_dummy[256];
  59 } DXVA2Mapping;
  60
  61 typedef struct DXVA2FramesContext {
  62     IDirect3DSurface9 **surfaces_internal;
  63     int              nb_surfaces_used;
  64
  65     HANDLE  device_handle;
  66     IDirectXVideoAccelerationService *service;
  67
  68     D3DFORMAT format;
  69 } DXVA2FramesContext;
  70
  71 typedef struct DXVA2DevicePriv {
  72     HMODULE d3dlib;
  73     HMODULE dxva2lib;
  74
  75     HANDLE device_handle;
  76
  77     IDirect3D9       *d3d9;
  78     IDirect3DDevice9 *d3d9device;
  79 } DXVA2DevicePriv;
  80
  81 static const struct {
  82     D3DFORMAT d3d_format;
  83     enum AVPixelFormat pix_fmt;
  84 } supported_formats[] = {
  85     { MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
  86     { MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
  87     { D3DFMT_P8,                 AV_PIX_FMT_PAL8 },
  88 };
  89
  90 DEFINE_GUID(video_decoder_service,   0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  91 DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  92
  93 static void dxva2_frames_uninit(AVHWFramesContext *ctx)
  94 {
  95     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
  96     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
  97     DXVA2FramesContext *s = ctx->internal->priv;
  98     int i;
  99
 100     if (frames_hwctx->decoder_to_release)
 101         IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);
 102
 103     if (s->surfaces_internal) {
 104         for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
 105             if (s->surfaces_internal[i])
 106                 IDirect3DSurface9_Release(s->surfaces_internal[i]);
 107         }
 108     }
 109     av_freep(&s->surfaces_internal);
 110
 111     if (s->service) {
 112         IDirectXVideoAccelerationService_Release(s->service);
 113         s->service = NULL;
 114     }
 115
 116     if (s->device_handle != INVALID_HANDLE_VALUE) {
 117         IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
 118         s->device_handle = INVALID_HANDLE_VALUE;
 119     }
 120 }
 121
 122 static AVBufferRef *dxva2_pool_alloc(void *opaque, int size)
 123 {
 124     AVHWFramesContext      *ctx = (AVHWFramesContext*)opaque;
 125     DXVA2FramesContext       *s = ctx->internal->priv;
 126     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 127
 128     if (s->nb_surfaces_used < hwctx->nb_surfaces) {
 129         s->nb_surfaces_used++;
 130         return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
 131                                 sizeof(*hwctx->surfaces), NULL, 0, 0);
 132     }
 133
 134     return NULL;
 135 }
 136
 137 static int dxva2_init_pool(AVHWFramesContext *ctx)
 138 {
 139     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
 140     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
 141     DXVA2FramesContext              *s = ctx->internal->priv;
 142     int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);
 143
 144     int i;
 145     HRESULT hr;
 146
 147     if (ctx->initial_pool_size <= 0)
 148         return 0;
 149
 150     hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
 151     if (FAILED(hr)) {
 152         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 153         return AVERROR_UNKNOWN;
 154     }
 155
 156     hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
 157                                                  s->device_handle,
 158                                                  decode ? &video_decoder_service : &video_processor_service,
 159                                                  (void **)&s->service);
 160     if (FAILED(hr)) {
 161         av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
 162         return AVERROR_UNKNOWN;
 163     }
 164
 165     for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
 166         if (ctx->sw_format == supported_formats[i].pix_fmt) {
 167             s->format = supported_formats[i].d3d_format;
 168             break;
 169         }
 170     }
 171     if (i == FF_ARRAY_ELEMS(supported_formats)) {
 172         av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
 173                av_get_pix_fmt_name(ctx->sw_format));
 174         return AVERROR(EINVAL);
 175     }
 176
 177     s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
 178                                             sizeof(*s->surfaces_internal));
 179     if (!s->surfaces_internal)
 180         return AVERROR(ENOMEM);
 181
 182     hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
 183                                                         ctx->width, ctx->height,
 184                                                         ctx->initial_pool_size - 1,
 185                                                         s->format, D3DPOOL_DEFAULT, 0,
 186                                                         frames_hwctx->surface_type,
 187                                                         s->surfaces_internal, NULL);
 188     if (FAILED(hr)) {
 189         av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
 190         return AVERROR_UNKNOWN;
 191     }
 192
 193     ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
 194                                                         ctx, dxva2_pool_alloc, NULL);
 195     if (!ctx->internal->pool_internal)
 196         return AVERROR(ENOMEM);
 197
 198     frames_hwctx->surfaces    = s->surfaces_internal;
 199     frames_hwctx->nb_surfaces = ctx->initial_pool_size;
 200
 201     return 0;
 202 }
 203
 204 static int dxva2_frames_init(AVHWFramesContext *ctx)
 205 {
 206     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 207     DXVA2FramesContext       *s = ctx->internal->priv;
 208     int ret;
 209
 210     if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
 211         hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
 212         av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
 213                hwctx->surface_type);
 214         return AVERROR(EINVAL);
 215     }
 216
 217     s->device_handle = INVALID_HANDLE_VALUE;
 218
 219     /* init the frame pool if the caller didn't provide one */
 220     if (!ctx->pool) {
 221         ret = dxva2_init_pool(ctx);
 222         if (ret < 0) {
 223             av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
 224             return ret;
 225         }
 226     }
 227
 228     return 0;
 229 }
 230
 231 static int dxva2_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
 232 {
 233     frame->buf[0] = av_buffer_pool_get(ctx->pool);
 234     if (!frame->buf[0])
 235         return AVERROR(ENOMEM);
 236
 237     frame->data[3] = frame->buf[0]->data;
 238     frame->format  = AV_PIX_FMT_DXVA2_VLD;
 239     frame->width   = ctx->width;
 240     frame->height  = ctx->height;
 241
 242     return 0;
 243 }
 244
 245 static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
 246                                       enum AVHWFrameTransferDirection dir,
 247                                       enum AVPixelFormat **formats)
 248 {
 249     enum AVPixelFormat *fmts;
 250
 251     fmts = av_malloc_array(2, sizeof(*fmts));
 252     if (!fmts)
 253         return AVERROR(ENOMEM);
 254
 255     fmts[0] = ctx->sw_format;
 256     fmts[1] = AV_PIX_FMT_NONE;
 257
 258     *formats = fmts;
 259
 260     return 0;
 261 }
 262
 263 static void dxva2_unmap_frame(AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
 264 {
 265     IDirect3DSurface9 *surface = (IDirect3DSurface9*)hwmap->source->data[3];
 266     IDirect3DSurface9_UnlockRect(surface);
 267     av_freep(&hwmap->priv);
 268 }
 269
 270 static int dxva2_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src,
 271                            int flags)
 272 {
 273     IDirect3DSurface9 *surface = (IDirect3DSurface9*)src->data[3];
 274     DXVA2Mapping      *map;
 275     D3DSURFACE_DESC    surfaceDesc;
 276     D3DLOCKED_RECT     LockedRect;
 277     HRESULT            hr;
 278     int i, err, nb_planes;
 279     int lock_flags = 0;
 280
 281     nb_planes = av_pix_fmt_count_planes(dst->format);
 282
 283     hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
 284     if (FAILED(hr)) {
 285         av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
 286         return AVERROR_UNKNOWN;
 287     }
 288
 289     if (!(flags & AV_HWFRAME_MAP_WRITE))
 290         lock_flags |= D3DLOCK_READONLY;
 291     if (flags & AV_HWFRAME_MAP_OVERWRITE)
 292         lock_flags |= D3DLOCK_DISCARD;
 293
 294     hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL, lock_flags);
 295     if (FAILED(hr)) {
 296         av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
 297         return AVERROR_UNKNOWN;
 298     }
 299
 300     map = av_mallocz(sizeof(*map));
 301     if (!map)
 302         goto fail;
 303
 304     err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
 305                                 dxva2_unmap_frame, map);
 306     if (err < 0) {
 307         av_freep(&map);
 308         goto fail;
 309     }
 310
 311     for (i = 0; i < nb_planes; i++)
 312         dst->linesize[i] = LockedRect.Pitch;
 313
 314     av_image_fill_pointers(dst->data, dst->format, surfaceDesc.Height,
 315                            (uint8_t*)LockedRect.pBits, dst->linesize);
 316
 317     if (dst->format == AV_PIX_FMT_PAL8)
 318         dst->data[1] = (uint8_t*)map->palette_dummy;
 319
 320     return 0;
 321 fail:
 322     IDirect3DSurface9_UnlockRect(surface);
 323     return err;
 324 }
 325
 326 static int dxva2_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
 327                                   const AVFrame *src)
 328 {
 329     AVFrame *map;
 330     int ret;
 331
 332     if (src->format != ctx->sw_format)
 333         return AVERROR(ENOSYS);
 334
 335     map = av_frame_alloc();
 336     if (!map)
 337         return AVERROR(ENOMEM);
 338     map->format = dst->format;
 339
 340     ret = dxva2_map_frame(ctx, map, dst, AV_HWFRAME_MAP_WRITE | AV_HWFRAME_MAP_OVERWRITE);
 341     if (ret < 0)
 342         goto fail;
 343
 344     av_image_copy(map->data, map->linesize, src->data, src->linesize,
 345                   ctx->sw_format, src->width, src->height);
 346
 347 fail:
 348     av_frame_free(&map);
 349     return ret;
 350 }
 351
 352 static int dxva2_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
 353                                     const AVFrame *src)
 354 {
 355     AVFrame *map;
 356     ptrdiff_t src_linesize[4], dst_linesize[4];
 357     int ret, i;
 358
 359     if (dst->format != ctx->sw_format)
 360         return AVERROR(ENOSYS);
 361
 362     map = av_frame_alloc();
 363     if (!map)
 364         return AVERROR(ENOMEM);
 365     map->format = dst->format;
 366
 367     ret = dxva2_map_frame(ctx, map, src, AV_HWFRAME_MAP_READ);
 368     if (ret < 0)
 369         goto fail;
 370
 371     for (i = 0; i < 4; i++) {
 372         dst_linesize[i] = dst->linesize[i];
 373         src_linesize[i] = map->linesize[i];
 374     }
 375     av_image_copy_uc_from(dst->data, dst_linesize, map->data, src_linesize,
 376                           ctx->sw_format, src->width, src->height);
 377 fail:
 378     av_frame_free(&map);
 379     return ret;
 380 }
 381
 382 static int dxva2_map_from(AVHWFramesContext *ctx,
 383                           AVFrame *dst, const AVFrame *src, int flags)
 384 {
 385     int err;
 386
 387     if (dst->format != AV_PIX_FMT_NONE && dst->format != ctx->sw_format)
 388         return AVERROR(ENOSYS);
 389     dst->format = ctx->sw_format;
 390
 391     err = dxva2_map_frame(ctx, dst, src, flags);
 392     if (err < 0)
 393         return err;
 394
 395     err = av_frame_copy_props(dst, src);
 396     if (err < 0)
 397         return err;
 398
 399     return 0;
 400 }
 401
 402 static void dxva2_device_free(AVHWDeviceContext *ctx)
 403 {
 404     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 405     DXVA2DevicePriv       *priv = ctx->user_opaque;
 406
 407     if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
 408         IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);
 409
 410     if (hwctx->devmgr)
 411         IDirect3DDeviceManager9_Release(hwctx->devmgr);
 412
 413     if (priv->d3d9device)
 414         IDirect3DDevice9_Release(priv->d3d9device);
 415
 416     if (priv->d3d9)
 417         IDirect3D9_Release(priv->d3d9);
 418
 419     if (priv->d3dlib)
 420         FreeLibrary(priv->d3dlib);
 421
 422     if (priv->dxva2lib)
 423         FreeLibrary(priv->dxva2lib);
 424
 425     av_freep(&ctx->user_opaque);
 426 }
 427
 428 static int dxva2_device_create9(AVHWDeviceContext *ctx, UINT adapter)
 429 {
 430     DXVA2DevicePriv *priv = ctx->user_opaque;
 431     D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
 432     D3DDISPLAYMODE d3ddm;
 433     HRESULT hr;
 434     pDirect3DCreate9 *createD3D = (pDirect3DCreate9 *)GetProcAddress(priv->d3dlib, "Direct3DCreate9");
 435     if (!createD3D) {
 436         av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
 437         return AVERROR_UNKNOWN;
 438     }
 439
 440     priv->d3d9 = createD3D(D3D_SDK_VERSION);
 441     if (!priv->d3d9) {
 442         av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
 443         return AVERROR_UNKNOWN;
 444     }
 445
 446     IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
 447
 448     d3dpp.BackBufferFormat = d3ddm.Format;
 449
 450     hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetShellWindow(),
 451                                 FF_D3DCREATE_FLAGS,
 452                                 &d3dpp, &priv->d3d9device);
 453     if (FAILED(hr)) {
 454         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
 455         return AVERROR_UNKNOWN;
 456     }
 457
 458     return 0;
 459 }
 460
 461 static int dxva2_device_create9ex(AVHWDeviceContext *ctx, UINT adapter)
 462 {
 463     DXVA2DevicePriv *priv = ctx->user_opaque;
 464     D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
 465     D3DDISPLAYMODEEX modeex = {0};
 466     IDirect3D9Ex *d3d9ex = NULL;
 467     IDirect3DDevice9Ex *exdev = NULL;
 468     HRESULT hr;
 469     pDirect3DCreate9Ex *createD3DEx = (pDirect3DCreate9Ex *)GetProcAddress(priv->d3dlib, "Direct3DCreate9Ex");
 470     if (!createD3DEx)
 471         return AVERROR(ENOSYS);
 472
 473     hr = createD3DEx(D3D_SDK_VERSION, &d3d9ex);
 474     if (FAILED(hr))
 475         return AVERROR_UNKNOWN;
 476
 477     IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
 478
 479     d3dpp.BackBufferFormat = modeex.Format;
 480
 481     hr = IDirect3D9Ex_CreateDeviceEx(d3d9ex, adapter, D3DDEVTYPE_HAL, GetShellWindow(),
 482                                      FF_D3DCREATE_FLAGS,
 483                                      &d3dpp, NULL, &exdev);
 484     if (FAILED(hr)) {
 485         IDirect3D9Ex_Release(d3d9ex);
 486         return AVERROR_UNKNOWN;
 487     }
 488
 489     av_log(ctx, AV_LOG_VERBOSE, "Using D3D9Ex device.\n");
 490     priv->d3d9 = (IDirect3D9 *)d3d9ex;
 491     priv->d3d9device = (IDirect3DDevice9 *)exdev;
 492     return 0;
 493 }
 494
 495 static int dxva2_device_create(AVHWDeviceContext *ctx, const char *device,
 496                                AVDictionary *opts, int flags)
 497 {
 498     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 499     DXVA2DevicePriv *priv;
 500     pCreateDeviceManager9 *createDeviceManager = NULL;
 501     unsigned resetToken = 0;
 502     UINT adapter = D3DADAPTER_DEFAULT;
 503     HRESULT hr;
 504     int err;
 505
 506     if (device)
 507         adapter = atoi(device);
 508
 509     priv = av_mallocz(sizeof(*priv));
 510     if (!priv)
 511         return AVERROR(ENOMEM);
 512
 513     ctx->user_opaque = priv;
 514     ctx->free        = dxva2_device_free;
 515
 516     priv->device_handle = INVALID_HANDLE_VALUE;
 517
 518     priv->d3dlib = LoadLibrary("d3d9.dll");
 519     if (!priv->d3dlib) {
 520         av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
 521         return AVERROR_UNKNOWN;
 522     }
 523     priv->dxva2lib = LoadLibrary("dxva2.dll");
 524     if (!priv->dxva2lib) {
 525         av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
 526         return AVERROR_UNKNOWN;
 527     }
 528
 529     createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(priv->dxva2lib,
 530                                                                   "DXVA2CreateDirect3DDeviceManager9");
 531     if (!createDeviceManager) {
 532         av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
 533         return AVERROR_UNKNOWN;
 534     }
 535
 536     if (dxva2_device_create9ex(ctx, adapter) < 0) {
 537         // Retry with "classic" d3d9
 538         err = dxva2_device_create9(ctx, adapter);
 539         if (err < 0)
 540             return err;
 541     }
 542
 543     hr = createDeviceManager(&resetToken, &hwctx->devmgr);
 544     if (FAILED(hr)) {
 545         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
 546         return AVERROR_UNKNOWN;
 547     }
 548
 549     hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
 550     if (FAILED(hr)) {
 551         av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
 552         return AVERROR_UNKNOWN;
 553     }
 554
 555     hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
 556     if (FAILED(hr)) {
 557         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 558         return AVERROR_UNKNOWN;
 559     }
 560
 561     return 0;
 562 }
 563
 564 const HWContextType ff_hwcontext_type_dxva2 = {
 565     .type                 = AV_HWDEVICE_TYPE_DXVA2,
 566     .name                 = "DXVA2",
 567
 568     .device_hwctx_size    = sizeof(AVDXVA2DeviceContext),
 569     .frames_hwctx_size    = sizeof(AVDXVA2FramesContext),
 570     .frames_priv_size     = sizeof(DXVA2FramesContext),
 571
 572     .device_create        = dxva2_device_create,
 573     .frames_init          = dxva2_frames_init,
 574     .frames_uninit        = dxva2_frames_uninit,
 575     .frames_get_buffer    = dxva2_get_buffer,
 576     .transfer_get_formats = dxva2_transfer_get_formats,
 577     .transfer_data_to     = dxva2_transfer_data_to,
 578     .transfer_data_from   = dxva2_transfer_data_from,
 579     .map_from             = dxva2_map_from,
 580
 581     .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
 582 };