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 pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
  42
  43 typedef struct DXVA2Mapping {
  44     uint32_t palette_dummy[256];
  45 } DXVA2Mapping;
  46
  47 typedef struct DXVA2FramesContext {
  48     IDirect3DSurface9 **surfaces_internal;
  49     int              nb_surfaces_used;
  50
  51     HANDLE  device_handle;
  52     IDirectXVideoAccelerationService *service;
  53
  54     D3DFORMAT format;
  55 } DXVA2FramesContext;
  56
  57 typedef struct DXVA2DevicePriv {
  58     HMODULE d3dlib;
  59     HMODULE dxva2lib;
  60
  61     HANDLE device_handle;
  62
  63     IDirect3D9       *d3d9;
  64     IDirect3DDevice9 *d3d9device;
  65 } DXVA2DevicePriv;
  66
  67 static const struct {
  68     D3DFORMAT d3d_format;
  69     enum AVPixelFormat pix_fmt;
  70 } supported_formats[] = {
  71     { MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
  72     { MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
  73     { D3DFMT_P8,                 AV_PIX_FMT_PAL8 },
  74 };
  75
  76 DEFINE_GUID(video_decoder_service,   0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  77 DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  78
  79 static void dxva2_frames_uninit(AVHWFramesContext *ctx)
  80 {
  81     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
  82     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
  83     DXVA2FramesContext *s = ctx->internal->priv;
  84     int i;
  85
  86     if (frames_hwctx->decoder_to_release)
  87         IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);
  88
  89     if (s->surfaces_internal) {
  90         for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
  91             if (s->surfaces_internal[i])
  92                 IDirect3DSurface9_Release(s->surfaces_internal[i]);
  93         }
  94     }
  95     av_freep(&s->surfaces_internal);
  96
  97     if (s->service) {
  98         IDirectXVideoAccelerationService_Release(s->service);
  99         s->service = NULL;
 100     }
 101
 102     if (s->device_handle != INVALID_HANDLE_VALUE) {
 103         IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
 104         s->device_handle = INVALID_HANDLE_VALUE;
 105     }
 106 }
 107
 108 static AVBufferRef *dxva2_pool_alloc(void *opaque, int size)
 109 {
 110     AVHWFramesContext      *ctx = (AVHWFramesContext*)opaque;
 111     DXVA2FramesContext       *s = ctx->internal->priv;
 112     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 113
 114     if (s->nb_surfaces_used < hwctx->nb_surfaces) {
 115         s->nb_surfaces_used++;
 116         return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
 117                                 sizeof(*hwctx->surfaces), NULL, 0, 0);
 118     }
 119
 120     return NULL;
 121 }
 122
 123 static int dxva2_init_pool(AVHWFramesContext *ctx)
 124 {
 125     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
 126     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
 127     DXVA2FramesContext              *s = ctx->internal->priv;
 128     int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);
 129
 130     int i;
 131     HRESULT hr;
 132
 133     if (ctx->initial_pool_size <= 0)
 134         return 0;
 135
 136     hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
 137     if (FAILED(hr)) {
 138         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 139         return AVERROR_UNKNOWN;
 140     }
 141
 142     hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
 143                                                  s->device_handle,
 144                                                  decode ? &video_decoder_service : &video_processor_service,
 145                                                  (void **)&s->service);
 146     if (FAILED(hr)) {
 147         av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
 148         return AVERROR_UNKNOWN;
 149     }
 150
 151     for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
 152         if (ctx->sw_format == supported_formats[i].pix_fmt) {
 153             s->format = supported_formats[i].d3d_format;
 154             break;
 155         }
 156     }
 157     if (i == FF_ARRAY_ELEMS(supported_formats)) {
 158         av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
 159                av_get_pix_fmt_name(ctx->sw_format));
 160         return AVERROR(EINVAL);
 161     }
 162
 163     s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
 164                                             sizeof(*s->surfaces_internal));
 165     if (!s->surfaces_internal)
 166         return AVERROR(ENOMEM);
 167
 168     hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
 169                                                         ctx->width, ctx->height,
 170                                                         ctx->initial_pool_size - 1,
 171                                                         s->format, D3DPOOL_DEFAULT, 0,
 172                                                         frames_hwctx->surface_type,
 173                                                         s->surfaces_internal, NULL);
 174     if (FAILED(hr)) {
 175         av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
 176         return AVERROR_UNKNOWN;
 177     }
 178
 179     ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
 180                                                         ctx, dxva2_pool_alloc, NULL);
 181     if (!ctx->internal->pool_internal)
 182         return AVERROR(ENOMEM);
 183
 184     frames_hwctx->surfaces    = s->surfaces_internal;
 185     frames_hwctx->nb_surfaces = ctx->initial_pool_size;
 186
 187     return 0;
 188 }
 189
 190 static int dxva2_frames_init(AVHWFramesContext *ctx)
 191 {
 192     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 193     DXVA2FramesContext       *s = ctx->internal->priv;
 194     int ret;
 195
 196     if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
 197         hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
 198         av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
 199                hwctx->surface_type);
 200         return AVERROR(EINVAL);
 201     }
 202
 203     s->device_handle = INVALID_HANDLE_VALUE;
 204
 205     /* init the frame pool if the caller didn't provide one */
 206     if (!ctx->pool) {
 207         ret = dxva2_init_pool(ctx);
 208         if (ret < 0) {
 209             av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
 210             return ret;
 211         }
 212     }
 213
 214     return 0;
 215 }
 216
 217 static int dxva2_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
 218 {
 219     frame->buf[0] = av_buffer_pool_get(ctx->pool);
 220     if (!frame->buf[0])
 221         return AVERROR(ENOMEM);
 222
 223     frame->data[3] = frame->buf[0]->data;
 224     frame->format  = AV_PIX_FMT_DXVA2_VLD;
 225     frame->width   = ctx->width;
 226     frame->height  = ctx->height;
 227
 228     return 0;
 229 }
 230
 231 static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
 232                                       enum AVHWFrameTransferDirection dir,
 233                                       enum AVPixelFormat **formats)
 234 {
 235     enum AVPixelFormat *fmts;
 236
 237     fmts = av_malloc_array(2, sizeof(*fmts));
 238     if (!fmts)
 239         return AVERROR(ENOMEM);
 240
 241     fmts[0] = ctx->sw_format;
 242     fmts[1] = AV_PIX_FMT_NONE;
 243
 244     *formats = fmts;
 245
 246     return 0;
 247 }
 248
 249 static void dxva2_unmap_frame(AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
 250 {
 251     IDirect3DSurface9 *surface = (IDirect3DSurface9*)hwmap->source->data[3];
 252     IDirect3DSurface9_UnlockRect(surface);
 253     av_freep(&hwmap->priv);
 254 }
 255
 256 static int dxva2_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src,
 257                            int flags)
 258 {
 259     IDirect3DSurface9 *surface = (IDirect3DSurface9*)src->data[3];
 260     DXVA2Mapping      *map;
 261     D3DSURFACE_DESC    surfaceDesc;
 262     D3DLOCKED_RECT     LockedRect;
 263     HRESULT            hr;
 264     int i, err, nb_planes;
 265
 266     nb_planes = av_pix_fmt_count_planes(dst->format);
 267
 268     hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
 269     if (FAILED(hr)) {
 270         av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
 271         return AVERROR_UNKNOWN;
 272     }
 273
 274     hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL,
 275                                     flags & AV_HWFRAME_MAP_READ ? D3DLOCK_READONLY : D3DLOCK_DISCARD);
 276     if (FAILED(hr)) {
 277         av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
 278         return AVERROR_UNKNOWN;
 279     }
 280
 281     map = av_mallocz(sizeof(*map));
 282     if (!map)
 283         goto fail;
 284
 285     err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
 286                                 dxva2_unmap_frame, map);
 287     if (err < 0) {
 288         av_freep(&map);
 289         goto fail;
 290     }
 291
 292     for (i = 0; i < nb_planes; i++)
 293         dst->linesize[i] = LockedRect.Pitch;
 294
 295     av_image_fill_pointers(dst->data, dst->format, surfaceDesc.Height,
 296                            (uint8_t*)LockedRect.pBits, dst->linesize);
 297
 298     if (dst->format == AV_PIX_FMT_PAL8)
 299         dst->data[1] = (uint8_t*)map->palette_dummy;
 300
 301     return 0;
 302 fail:
 303     IDirect3DSurface9_UnlockRect(surface);
 304     return err;
 305 }
 306
 307 static int dxva2_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
 308                                const AVFrame *src)
 309 {
 310     int download = !!src->hw_frames_ctx;
 311
 312     AVFrame *map;
 313     int ret, i;
 314
 315     map = av_frame_alloc();
 316     if (!map)
 317         return AVERROR(ENOMEM);
 318     map->format = dst->format;
 319
 320     ret = dxva2_map_frame(ctx, map, download ? src : dst,
 321                           download ? AV_HWFRAME_MAP_READ : AV_HWFRAME_MAP_WRITE);
 322     if (ret < 0)
 323         goto fail;
 324
 325     if (download) {
 326         ptrdiff_t src_linesize[4], dst_linesize[4];
 327         for (i = 0; i < 4; i++) {
 328             dst_linesize[i] = dst->linesize[i];
 329             src_linesize[i] = map->linesize[i];
 330         }
 331         av_image_copy_uc_from(dst->data, dst_linesize, map->data, src_linesize,
 332                               ctx->sw_format, src->width, src->height);
 333     } else {
 334         av_image_copy(map->data, map->linesize, src->data, src->linesize,
 335                       ctx->sw_format, src->width, src->height);
 336     }
 337
 338 fail:
 339     av_frame_free(&map);
 340     return ret;
 341 }
 342
 343 static int dxva2_map_from(AVHWFramesContext *ctx,
 344                           AVFrame *dst, const AVFrame *src, int flags)
 345 {
 346     int err;
 347
 348     if (dst->format != AV_PIX_FMT_NONE && dst->format != ctx->sw_format)
 349         return AVERROR(ENOSYS);
 350     dst->format = ctx->sw_format;
 351
 352     err = dxva2_map_frame(ctx, dst, src, flags);
 353     if (err < 0)
 354         return err;
 355
 356     err = av_frame_copy_props(dst, src);
 357     if (err < 0)
 358         return err;
 359
 360     return 0;
 361 }
 362
 363 static void dxva2_device_free(AVHWDeviceContext *ctx)
 364 {
 365     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 366     DXVA2DevicePriv       *priv = ctx->user_opaque;
 367
 368     if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
 369         IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);
 370
 371     if (hwctx->devmgr)
 372         IDirect3DDeviceManager9_Release(hwctx->devmgr);
 373
 374     if (priv->d3d9device)
 375         IDirect3DDevice9_Release(priv->d3d9device);
 376
 377     if (priv->d3d9)
 378         IDirect3D9_Release(priv->d3d9);
 379
 380     if (priv->d3dlib)
 381         FreeLibrary(priv->d3dlib);
 382
 383     if (priv->dxva2lib)
 384         FreeLibrary(priv->dxva2lib);
 385
 386     av_freep(&ctx->user_opaque);
 387 }
 388
 389 static int dxva2_device_create(AVHWDeviceContext *ctx, const char *device,
 390                                AVDictionary *opts, int flags)
 391 {
 392     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 393     DXVA2DevicePriv *priv;
 394
 395     pDirect3DCreate9 *createD3D = NULL;
 396     pCreateDeviceManager9 *createDeviceManager = NULL;
 397     D3DPRESENT_PARAMETERS d3dpp = {0};
 398     D3DDISPLAYMODE        d3ddm;
 399     unsigned resetToken = 0;
 400     UINT adapter = D3DADAPTER_DEFAULT;
 401     HRESULT hr;
 402
 403     if (device)
 404         adapter = atoi(device);
 405
 406     priv = av_mallocz(sizeof(*priv));
 407     if (!priv)
 408         return AVERROR(ENOMEM);
 409
 410     ctx->user_opaque = priv;
 411     ctx->free        = dxva2_device_free;
 412
 413     priv->device_handle = INVALID_HANDLE_VALUE;
 414
 415     priv->d3dlib = LoadLibrary("d3d9.dll");
 416     if (!priv->d3dlib) {
 417         av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
 418         return AVERROR_UNKNOWN;
 419     }
 420     priv->dxva2lib = LoadLibrary("dxva2.dll");
 421     if (!priv->dxva2lib) {
 422         av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
 423         return AVERROR_UNKNOWN;
 424     }
 425
 426     createD3D = (pDirect3DCreate9 *)GetProcAddress(priv->d3dlib, "Direct3DCreate9");
 427     if (!createD3D) {
 428         av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
 429         return AVERROR_UNKNOWN;
 430     }
 431     createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(priv->dxva2lib,
 432                                                                   "DXVA2CreateDirect3DDeviceManager9");
 433     if (!createDeviceManager) {
 434         av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
 435         return AVERROR_UNKNOWN;
 436     }
 437
 438     priv->d3d9 = createD3D(D3D_SDK_VERSION);
 439     if (!priv->d3d9) {
 440         av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
 441         return AVERROR_UNKNOWN;
 442     }
 443
 444     IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
 445     d3dpp.Windowed         = TRUE;
 446     d3dpp.BackBufferWidth  = 640;
 447     d3dpp.BackBufferHeight = 480;
 448     d3dpp.BackBufferCount  = 0;
 449     d3dpp.BackBufferFormat = d3ddm.Format;
 450     d3dpp.SwapEffect       = D3DSWAPEFFECT_DISCARD;
 451     d3dpp.Flags            = D3DPRESENTFLAG_VIDEO;
 452
 453     hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetShellWindow(),
 454                                  D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
 455                                  &d3dpp, &priv->d3d9device);
 456     if (FAILED(hr)) {
 457         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
 458         return AVERROR_UNKNOWN;
 459     }
 460
 461     hr = createDeviceManager(&resetToken, &hwctx->devmgr);
 462     if (FAILED(hr)) {
 463         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
 464         return AVERROR_UNKNOWN;
 465     }
 466
 467     hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
 468     if (FAILED(hr)) {
 469         av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
 470         return AVERROR_UNKNOWN;
 471     }
 472
 473     hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
 474     if (FAILED(hr)) {
 475         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 476         return AVERROR_UNKNOWN;
 477     }
 478
 479     return 0;
 480 }
 481
 482 const HWContextType ff_hwcontext_type_dxva2 = {
 483     .type                 = AV_HWDEVICE_TYPE_DXVA2,
 484     .name                 = "DXVA2",
 485
 486     .device_hwctx_size    = sizeof(AVDXVA2DeviceContext),
 487     .frames_hwctx_size    = sizeof(AVDXVA2FramesContext),
 488     .frames_priv_size     = sizeof(DXVA2FramesContext),
 489
 490     .device_create        = dxva2_device_create,
 491     .frames_init          = dxva2_frames_init,
 492     .frames_uninit        = dxva2_frames_uninit,
 493     .frames_get_buffer    = dxva2_get_buffer,
 494     .transfer_get_formats = dxva2_transfer_get_formats,
 495     .transfer_data_to     = dxva2_transfer_data,
 496     .transfer_data_from   = dxva2_transfer_data,
 497     .map_from             = dxva2_map_from,
 498
 499     .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
 500 };