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

   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg 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  * FFmpeg 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 FFmpeg; 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 "avassert.h"
  33 #include "common.h"
  34 #include "hwcontext.h"
  35 #include "hwcontext_dxva2.h"
  36 #include "hwcontext_internal.h"
  37 #include "imgutils.h"
  38 #include "pixdesc.h"
  39 #include "pixfmt.h"
  40 #include "compat/w32dlfcn.h"
  41
  42 typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
  43 typedef HRESULT WINAPI pDirect3DCreate9Ex(UINT, IDirect3D9Ex **);
  44 typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
  45
  46 #define FF_D3DCREATE_FLAGS (D3DCREATE_SOFTWARE_VERTEXPROCESSING | \
  47                             D3DCREATE_MULTITHREADED | \
  48                             D3DCREATE_FPU_PRESERVE)
  49
  50 static const D3DPRESENT_PARAMETERS dxva2_present_params = {
  51     .Windowed         = TRUE,
  52     .BackBufferWidth  = 640,
  53     .BackBufferHeight = 480,
  54     .BackBufferCount  = 0,
  55     .SwapEffect       = D3DSWAPEFFECT_DISCARD,
  56     .Flags            = D3DPRESENTFLAG_VIDEO,
  57 };
  58
  59 typedef struct DXVA2FramesContext {
  60     IDirect3DSurface9 **surfaces_internal;
  61     int              nb_surfaces_used;
  62
  63     HANDLE  device_handle;
  64     IDirectXVideoAccelerationService *service;
  65
  66     D3DFORMAT format;
  67 } DXVA2FramesContext;
  68
  69 typedef struct DXVA2DevicePriv {
  70     HMODULE d3dlib;
  71     HMODULE dxva2lib;
  72
  73     HANDLE device_handle;
  74
  75     IDirect3D9       *d3d9;
  76     IDirect3DDevice9 *d3d9device;
  77 } DXVA2DevicePriv;
  78
  79 static const struct {
  80     D3DFORMAT d3d_format;
  81     enum AVPixelFormat pix_fmt;
  82 } supported_formats[] = {
  83     { MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
  84     { MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
  85 };
  86
  87 DEFINE_GUID(video_decoder_service,   0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  88 DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  89
  90 static void dxva2_frames_uninit(AVHWFramesContext *ctx)
  91 {
  92     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
  93     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
  94     DXVA2FramesContext *s = ctx->internal->priv;
  95     int i;
  96
  97     if (frames_hwctx->decoder_to_release)
  98         IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);
  99
 100     if (s->surfaces_internal) {
 101         for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
 102             if (s->surfaces_internal[i])
 103                 IDirect3DSurface9_Release(s->surfaces_internal[i]);
 104         }
 105     }
 106     av_freep(&s->surfaces_internal);
 107
 108     if (s->service) {
 109         IDirectXVideoAccelerationService_Release(s->service);
 110         s->service = NULL;
 111     }
 112
 113     if (s->device_handle != INVALID_HANDLE_VALUE) {
 114         IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
 115         s->device_handle = INVALID_HANDLE_VALUE;
 116     }
 117 }
 118
 119 static AVBufferRef *dxva2_pool_alloc(void *opaque, int size)
 120 {
 121     AVHWFramesContext      *ctx = (AVHWFramesContext*)opaque;
 122     DXVA2FramesContext       *s = ctx->internal->priv;
 123     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 124
 125     if (s->nb_surfaces_used < hwctx->nb_surfaces) {
 126         s->nb_surfaces_used++;
 127         return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
 128                                 sizeof(*hwctx->surfaces), NULL, 0, 0);
 129     }
 130
 131     return NULL;
 132 }
 133
 134 static int dxva2_init_pool(AVHWFramesContext *ctx)
 135 {
 136     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
 137     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
 138     DXVA2FramesContext              *s = ctx->internal->priv;
 139     int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);
 140
 141     int i;
 142     HRESULT hr;
 143
 144     if (ctx->initial_pool_size <= 0)
 145         return 0;
 146
 147     hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
 148     if (FAILED(hr)) {
 149         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 150         return AVERROR_UNKNOWN;
 151     }
 152
 153     hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
 154                                                  s->device_handle,
 155                                                  decode ? &video_decoder_service : &video_processor_service,
 156                                                  (void **)&s->service);
 157     if (FAILED(hr)) {
 158         av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
 159         return AVERROR_UNKNOWN;
 160     }
 161
 162     for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
 163         if (ctx->sw_format == supported_formats[i].pix_fmt) {
 164             s->format = supported_formats[i].d3d_format;
 165             break;
 166         }
 167     }
 168     if (i == FF_ARRAY_ELEMS(supported_formats)) {
 169         av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
 170                av_get_pix_fmt_name(ctx->sw_format));
 171         return AVERROR(EINVAL);
 172     }
 173
 174     s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
 175                                             sizeof(*s->surfaces_internal));
 176     if (!s->surfaces_internal)
 177         return AVERROR(ENOMEM);
 178
 179     hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
 180                                                         ctx->width, ctx->height,
 181                                                         ctx->initial_pool_size - 1,
 182                                                         s->format, D3DPOOL_DEFAULT, 0,
 183                                                         frames_hwctx->surface_type,
 184                                                         s->surfaces_internal, NULL);
 185     if (FAILED(hr)) {
 186         av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
 187         return AVERROR_UNKNOWN;
 188     }
 189
 190     ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
 191                                                         ctx, dxva2_pool_alloc, NULL);
 192     if (!ctx->internal->pool_internal)
 193         return AVERROR(ENOMEM);
 194
 195     frames_hwctx->surfaces    = s->surfaces_internal;
 196     frames_hwctx->nb_surfaces = ctx->initial_pool_size;
 197
 198     return 0;
 199 }
 200
 201 static int dxva2_frames_init(AVHWFramesContext *ctx)
 202 {
 203     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 204     DXVA2FramesContext       *s = ctx->internal->priv;
 205     int ret;
 206
 207     if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
 208         hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
 209         av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
 210                hwctx->surface_type);
 211         return AVERROR(EINVAL);
 212     }
 213
 214     s->device_handle = INVALID_HANDLE_VALUE;
 215
 216     /* init the frame pool if the caller didn't provide one */
 217     if (!ctx->pool) {
 218         ret = dxva2_init_pool(ctx);
 219         if (ret < 0) {
 220             av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
 221             return ret;
 222         }
 223     }
 224
 225     return 0;
 226 }
 227
 228 static int dxva2_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
 229 {
 230     frame->buf[0] = av_buffer_pool_get(ctx->pool);
 231     if (!frame->buf[0])
 232         return AVERROR(ENOMEM);
 233
 234     frame->data[3] = frame->buf[0]->data;
 235     frame->format  = AV_PIX_FMT_DXVA2_VLD;
 236     frame->width   = ctx->width;
 237     frame->height  = ctx->height;
 238
 239     return 0;
 240 }
 241
 242 static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
 243                                       enum AVHWFrameTransferDirection dir,
 244                                       enum AVPixelFormat **formats)
 245 {
 246     enum AVPixelFormat *fmts;
 247
 248     fmts = av_malloc_array(2, sizeof(*fmts));
 249     if (!fmts)
 250         return AVERROR(ENOMEM);
 251
 252     fmts[0] = ctx->sw_format;
 253     fmts[1] = AV_PIX_FMT_NONE;
 254
 255     *formats = fmts;
 256
 257     return 0;
 258 }
 259
 260 static int dxva2_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
 261                                const AVFrame *src)
 262 {
 263     IDirect3DSurface9 *surface;
 264     D3DSURFACE_DESC    surfaceDesc;
 265     D3DLOCKED_RECT     LockedRect;
 266     HRESULT            hr;
 267
 268     uint8_t *surf_data[4]     = { NULL };
 269     int      surf_linesize[4] = { 0 };
 270     int i;
 271
 272     int download = !!src->hw_frames_ctx;
 273
 274     surface = (IDirect3DSurface9*)(download ? src->data[3] : dst->data[3]);
 275
 276     hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
 277     if (FAILED(hr)) {
 278         av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
 279         return AVERROR_UNKNOWN;
 280     }
 281
 282     hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL,
 283                                     download ? D3DLOCK_READONLY : D3DLOCK_DISCARD);
 284     if (FAILED(hr)) {
 285         av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
 286         return AVERROR_UNKNOWN;
 287     }
 288
 289     for (i = 0; download ? dst->data[i] : src->data[i]; i++)
 290         surf_linesize[i] = LockedRect.Pitch;
 291
 292     av_image_fill_pointers(surf_data, ctx->sw_format, surfaceDesc.Height,
 293                            (uint8_t*)LockedRect.pBits, surf_linesize);
 294
 295     if (download) {
 296         av_image_copy(dst->data, dst->linesize, surf_data, surf_linesize,
 297                       ctx->sw_format, src->width, src->height);
 298     } else {
 299         av_image_copy(surf_data, surf_linesize, src->data, src->linesize,
 300                       ctx->sw_format, src->width, src->height);
 301     }
 302
 303     IDirect3DSurface9_UnlockRect(surface);
 304
 305     return 0;
 306 }
 307
 308 static void dxva2_device_free(AVHWDeviceContext *ctx)
 309 {
 310     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 311     DXVA2DevicePriv       *priv = ctx->user_opaque;
 312
 313     if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
 314         IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);
 315
 316     if (hwctx->devmgr)
 317         IDirect3DDeviceManager9_Release(hwctx->devmgr);
 318
 319     if (priv->d3d9device)
 320         IDirect3DDevice9_Release(priv->d3d9device);
 321
 322     if (priv->d3d9)
 323         IDirect3D9_Release(priv->d3d9);
 324
 325     if (priv->d3dlib)
 326         dlclose(priv->d3dlib);
 327
 328     if (priv->dxva2lib)
 329         dlclose(priv->dxva2lib);
 330
 331     av_freep(&ctx->user_opaque);
 332 }
 333
 334 static int dxva2_device_create9(AVHWDeviceContext *ctx, UINT adapter)
 335 {
 336     DXVA2DevicePriv *priv = ctx->user_opaque;
 337     D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
 338     D3DDISPLAYMODE d3ddm;
 339     HRESULT hr;
 340     pDirect3DCreate9 *createD3D = (pDirect3DCreate9 *)dlsym(priv->d3dlib, "Direct3DCreate9");
 341     if (!createD3D) {
 342         av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
 343         return AVERROR_UNKNOWN;
 344     }
 345
 346     priv->d3d9 = createD3D(D3D_SDK_VERSION);
 347     if (!priv->d3d9) {
 348         av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
 349         return AVERROR_UNKNOWN;
 350     }
 351
 352     IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
 353
 354     d3dpp.BackBufferFormat = d3ddm.Format;
 355
 356     hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
 357                                  FF_D3DCREATE_FLAGS,
 358                                  &d3dpp, &priv->d3d9device);
 359     if (FAILED(hr)) {
 360         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
 361         return AVERROR_UNKNOWN;
 362     }
 363
 364     return 0;
 365 }
 366
 367 static int dxva2_device_create9ex(AVHWDeviceContext *ctx, UINT adapter)
 368 {
 369     DXVA2DevicePriv *priv = ctx->user_opaque;
 370     D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
 371     D3DDISPLAYMODEEX modeex = {0};
 372     IDirect3D9Ex *d3d9ex = NULL;
 373     IDirect3DDevice9Ex *exdev = NULL;
 374     HRESULT hr;
 375     pDirect3DCreate9Ex *createD3DEx = (pDirect3DCreate9Ex *)dlsym(priv->d3dlib, "Direct3DCreate9Ex");
 376     if (!createD3DEx)
 377         return AVERROR(ENOSYS);
 378
 379     hr = createD3DEx(D3D_SDK_VERSION, &d3d9ex);
 380     if (FAILED(hr))
 381         return AVERROR_UNKNOWN;
 382
 383     IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
 384
 385     d3dpp.BackBufferFormat = modeex.Format;
 386
 387     hr = IDirect3D9Ex_CreateDeviceEx(d3d9ex, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
 388                                      FF_D3DCREATE_FLAGS,
 389                                      &d3dpp, NULL, &exdev);
 390     if (FAILED(hr)) {
 391         IDirect3D9Ex_Release(d3d9ex);
 392         return AVERROR_UNKNOWN;
 393     }
 394
 395     av_log(ctx, AV_LOG_VERBOSE, "Using D3D9Ex device.\n");
 396     priv->d3d9 = (IDirect3D9 *)d3d9ex;
 397     priv->d3d9device = (IDirect3DDevice9 *)exdev;
 398     return 0;
 399 }
 400
 401 static int dxva2_device_create(AVHWDeviceContext *ctx, const char *device,
 402                                AVDictionary *opts, int flags)
 403 {
 404     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 405     DXVA2DevicePriv *priv;
 406     pCreateDeviceManager9 *createDeviceManager = NULL;
 407     unsigned resetToken = 0;
 408     UINT adapter = D3DADAPTER_DEFAULT;
 409     HRESULT hr;
 410     int err;
 411
 412     if (device)
 413         adapter = atoi(device);
 414
 415     priv = av_mallocz(sizeof(*priv));
 416     if (!priv)
 417         return AVERROR(ENOMEM);
 418
 419     ctx->user_opaque = priv;
 420     ctx->free        = dxva2_device_free;
 421
 422     priv->device_handle = INVALID_HANDLE_VALUE;
 423
 424     priv->d3dlib = dlopen("d3d9.dll", 0);
 425     if (!priv->d3dlib) {
 426         av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
 427         return AVERROR_UNKNOWN;
 428     }
 429     priv->dxva2lib = dlopen("dxva2.dll", 0);
 430     if (!priv->dxva2lib) {
 431         av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
 432         return AVERROR_UNKNOWN;
 433     }
 434
 435     createDeviceManager = (pCreateDeviceManager9 *)dlsym(priv->dxva2lib,
 436                                                          "DXVA2CreateDirect3DDeviceManager9");
 437     if (!createDeviceManager) {
 438         av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
 439         return AVERROR_UNKNOWN;
 440     }
 441
 442     if (dxva2_device_create9ex(ctx, adapter) < 0) {
 443         // Retry with "classic" d3d9
 444         err = dxva2_device_create9(ctx, adapter);
 445         if (err < 0)
 446             return err;
 447     }
 448
 449     hr = createDeviceManager(&resetToken, &hwctx->devmgr);
 450     if (FAILED(hr)) {
 451         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
 452         return AVERROR_UNKNOWN;
 453     }
 454
 455     hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
 456     if (FAILED(hr)) {
 457         av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
 458         return AVERROR_UNKNOWN;
 459     }
 460
 461     hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
 462     if (FAILED(hr)) {
 463         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 464         return AVERROR_UNKNOWN;
 465     }
 466
 467     return 0;
 468 }
 469
 470 const HWContextType ff_hwcontext_type_dxva2 = {
 471     .type                 = AV_HWDEVICE_TYPE_DXVA2,
 472     .name                 = "DXVA2",
 473
 474     .device_hwctx_size    = sizeof(AVDXVA2DeviceContext),
 475     .frames_hwctx_size    = sizeof(AVDXVA2FramesContext),
 476     .frames_priv_size     = sizeof(DXVA2FramesContext),
 477
 478     .device_create        = dxva2_device_create,
 479     .frames_init          = dxva2_frames_init,
 480     .frames_uninit        = dxva2_frames_uninit,
 481     .frames_get_buffer    = dxva2_get_buffer,
 482     .transfer_get_formats = dxva2_transfer_get_formats,
 483     .transfer_data_to     = dxva2_transfer_data,
 484     .transfer_data_from   = dxva2_transfer_data,
 485
 486     .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
 487 };