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
  41 typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
  42 typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
  43
  44 typedef struct DXVA2FramesContext {
  45     IDirect3DSurface9 **surfaces_internal;
  46     int              nb_surfaces_used;
  47
  48     HANDLE  device_handle;
  49     IDirectXVideoAccelerationService *service;
  50
  51     D3DFORMAT format;
  52 } DXVA2FramesContext;
  53
  54 typedef struct DXVA2DevicePriv {
  55     HMODULE d3dlib;
  56     HMODULE dxva2lib;
  57
  58     HANDLE device_handle;
  59
  60     IDirect3D9       *d3d9;
  61     IDirect3DDevice9 *d3d9device;
  62 } DXVA2DevicePriv;
  63
  64 static const struct {
  65     D3DFORMAT d3d_format;
  66     enum AVPixelFormat pix_fmt;
  67 } supported_formats[] = {
  68     { MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
  69     { MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
  70 };
  71
  72 DEFINE_GUID(video_decoder_service,   0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  73 DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  74
  75 static void dxva2_frames_uninit(AVHWFramesContext *ctx)
  76 {
  77     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
  78     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
  79     DXVA2FramesContext *s = ctx->internal->priv;
  80     int i;
  81
  82     if (frames_hwctx->decoder_to_release)
  83         IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);
  84
  85     if (s->surfaces_internal) {
  86         for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
  87             if (s->surfaces_internal[i])
  88                 IDirect3DSurface9_Release(s->surfaces_internal[i]);
  89         }
  90     }
  91     av_freep(&s->surfaces_internal);
  92
  93     if (s->service) {
  94         IDirectXVideoAccelerationService_Release(s->service);
  95         s->service = NULL;
  96     }
  97
  98     if (s->device_handle != INVALID_HANDLE_VALUE) {
  99         IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
 100         s->device_handle = INVALID_HANDLE_VALUE;
 101     }
 102 }
 103
 104 static AVBufferRef *dxva2_pool_alloc(void *opaque, int size)
 105 {
 106     AVHWFramesContext      *ctx = (AVHWFramesContext*)opaque;
 107     DXVA2FramesContext       *s = ctx->internal->priv;
 108     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 109
 110     if (s->nb_surfaces_used < hwctx->nb_surfaces) {
 111         s->nb_surfaces_used++;
 112         return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
 113                                 sizeof(*hwctx->surfaces), NULL, 0, 0);
 114     }
 115
 116     return NULL;
 117 }
 118
 119 static int dxva2_init_pool(AVHWFramesContext *ctx)
 120 {
 121     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
 122     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
 123     DXVA2FramesContext              *s = ctx->internal->priv;
 124     int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);
 125
 126     int i;
 127     HRESULT hr;
 128
 129     if (ctx->initial_pool_size <= 0)
 130         return 0;
 131
 132     hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
 133     if (FAILED(hr)) {
 134         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 135         return AVERROR_UNKNOWN;
 136     }
 137
 138     hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
 139                                                  s->device_handle,
 140                                                  decode ? &video_decoder_service : &video_processor_service,
 141                                                  (void **)&s->service);
 142     if (FAILED(hr)) {
 143         av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
 144         return AVERROR_UNKNOWN;
 145     }
 146
 147     for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
 148         if (ctx->sw_format == supported_formats[i].pix_fmt) {
 149             s->format = supported_formats[i].d3d_format;
 150             break;
 151         }
 152     }
 153     if (i == FF_ARRAY_ELEMS(supported_formats)) {
 154         av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
 155                av_get_pix_fmt_name(ctx->sw_format));
 156         return AVERROR(EINVAL);
 157     }
 158
 159     s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
 160                                             sizeof(*s->surfaces_internal));
 161     if (!s->surfaces_internal)
 162         return AVERROR(ENOMEM);
 163
 164     hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
 165                                                         ctx->width, ctx->height,
 166                                                         ctx->initial_pool_size - 1,
 167                                                         s->format, D3DPOOL_DEFAULT, 0,
 168                                                         frames_hwctx->surface_type,
 169                                                         s->surfaces_internal, NULL);
 170     if (FAILED(hr)) {
 171         av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
 172         return AVERROR_UNKNOWN;
 173     }
 174
 175     ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
 176                                                         ctx, dxva2_pool_alloc, NULL);
 177     if (!ctx->internal->pool_internal)
 178         return AVERROR(ENOMEM);
 179
 180     frames_hwctx->surfaces    = s->surfaces_internal;
 181     frames_hwctx->nb_surfaces = ctx->initial_pool_size;
 182
 183     return 0;
 184 }
 185
 186 static int dxva2_frames_init(AVHWFramesContext *ctx)
 187 {
 188     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 189     DXVA2FramesContext       *s = ctx->internal->priv;
 190     int ret;
 191
 192     if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
 193         hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
 194         av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
 195                hwctx->surface_type);
 196         return AVERROR(EINVAL);
 197     }
 198
 199     s->device_handle = INVALID_HANDLE_VALUE;
 200
 201     /* init the frame pool if the caller didn't provide one */
 202     if (!ctx->pool) {
 203         ret = dxva2_init_pool(ctx);
 204         if (ret < 0) {
 205             av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
 206             return ret;
 207         }
 208     }
 209
 210     return 0;
 211 }
 212
 213 static int dxva2_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
 214 {
 215     frame->buf[0] = av_buffer_pool_get(ctx->pool);
 216     if (!frame->buf[0])
 217         return AVERROR(ENOMEM);
 218
 219     frame->data[3] = frame->buf[0]->data;
 220     frame->format  = AV_PIX_FMT_DXVA2_VLD;
 221     frame->width   = ctx->width;
 222     frame->height  = ctx->height;
 223
 224     return 0;
 225 }
 226
 227 static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
 228                                       enum AVHWFrameTransferDirection dir,
 229                                       enum AVPixelFormat **formats)
 230 {
 231     enum AVPixelFormat *fmts;
 232
 233     fmts = av_malloc_array(2, sizeof(*fmts));
 234     if (!fmts)
 235         return AVERROR(ENOMEM);
 236
 237     fmts[0] = ctx->sw_format;
 238     fmts[1] = AV_PIX_FMT_NONE;
 239
 240     *formats = fmts;
 241
 242     return 0;
 243 }
 244
 245 static int dxva2_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
 246                                const AVFrame *src)
 247 {
 248     IDirect3DSurface9 *surface;
 249     D3DSURFACE_DESC    surfaceDesc;
 250     D3DLOCKED_RECT     LockedRect;
 251     HRESULT            hr;
 252
 253     int download = !!src->hw_frames_ctx;
 254     int bytes_per_component;
 255
 256     switch (ctx->sw_format) {
 257         case AV_PIX_FMT_NV12:
 258             bytes_per_component = 1;
 259             break;
 260         case AV_PIX_FMT_P010:
 261             bytes_per_component = 2;
 262             break;
 263         default:
 264             av_assert0(0);
 265     }
 266
 267     surface = (IDirect3DSurface9*)(download ? src->data[3] : dst->data[3]);
 268
 269     hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
 270     if (FAILED(hr)) {
 271         av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
 272         return AVERROR_UNKNOWN;
 273     }
 274
 275     hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL,
 276                                     download ? D3DLOCK_READONLY : D3DLOCK_DISCARD);
 277     if (FAILED(hr)) {
 278         av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
 279         return AVERROR_UNKNOWN;
 280     }
 281
 282     if (download) {
 283         av_image_copy_plane(dst->data[0], dst->linesize[0],
 284                             (uint8_t*)LockedRect.pBits, LockedRect.Pitch,
 285                             src->width * bytes_per_component, src->height);
 286         av_image_copy_plane(dst->data[1], dst->linesize[1],
 287                             (uint8_t*)LockedRect.pBits + LockedRect.Pitch * surfaceDesc.Height,
 288                             LockedRect.Pitch, src->width * bytes_per_component, src->height / 2);
 289     } else {
 290         av_image_copy_plane((uint8_t*)LockedRect.pBits, LockedRect.Pitch,
 291                             dst->data[0], dst->linesize[0],
 292                             src->width * bytes_per_component, src->height);
 293         av_image_copy_plane((uint8_t*)LockedRect.pBits + LockedRect.Pitch * surfaceDesc.Height,
 294                             LockedRect.Pitch, dst->data[1], dst->linesize[1],
 295                             src->width * bytes_per_component, src->height / 2);
 296     }
 297
 298     IDirect3DSurface9_UnlockRect(surface);
 299
 300     return 0;
 301 }
 302
 303 static void dxva2_device_free(AVHWDeviceContext *ctx)
 304 {
 305     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 306     DXVA2DevicePriv       *priv = ctx->user_opaque;
 307
 308     if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
 309         IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);
 310
 311     if (hwctx->devmgr)
 312         IDirect3DDeviceManager9_Release(hwctx->devmgr);
 313
 314     if (priv->d3d9device)
 315         IDirect3DDevice9_Release(priv->d3d9device);
 316
 317     if (priv->d3d9)
 318         IDirect3D9_Release(priv->d3d9);
 319
 320     if (priv->d3dlib)
 321         FreeLibrary(priv->d3dlib);
 322
 323     if (priv->dxva2lib)
 324         FreeLibrary(priv->dxva2lib);
 325
 326     av_freep(&ctx->user_opaque);
 327 }
 328
 329 static int dxva2_device_create(AVHWDeviceContext *ctx, const char *device,
 330                                AVDictionary *opts, int flags)
 331 {
 332     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 333     DXVA2DevicePriv *priv;
 334
 335     pDirect3DCreate9 *createD3D = NULL;
 336     pCreateDeviceManager9 *createDeviceManager = NULL;
 337     D3DPRESENT_PARAMETERS d3dpp = {0};
 338     D3DDISPLAYMODE        d3ddm;
 339     unsigned resetToken = 0;
 340     UINT adapter = D3DADAPTER_DEFAULT;
 341     HRESULT hr;
 342
 343     if (device)
 344         adapter = atoi(device);
 345
 346     priv = av_mallocz(sizeof(*priv));
 347     if (!priv)
 348         return AVERROR(ENOMEM);
 349
 350     ctx->user_opaque = priv;
 351     ctx->free        = dxva2_device_free;
 352
 353     priv->device_handle = INVALID_HANDLE_VALUE;
 354
 355     priv->d3dlib = LoadLibrary("d3d9.dll");
 356     if (!priv->d3dlib) {
 357         av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
 358         return AVERROR_UNKNOWN;
 359     }
 360     priv->dxva2lib = LoadLibrary("dxva2.dll");
 361     if (!priv->dxva2lib) {
 362         av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
 363         return AVERROR_UNKNOWN;
 364     }
 365
 366     createD3D = (pDirect3DCreate9 *)GetProcAddress(priv->d3dlib, "Direct3DCreate9");
 367     if (!createD3D) {
 368         av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
 369         return AVERROR_UNKNOWN;
 370     }
 371     createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(priv->dxva2lib,
 372                                                                   "DXVA2CreateDirect3DDeviceManager9");
 373     if (!createDeviceManager) {
 374         av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
 375         return AVERROR_UNKNOWN;
 376     }
 377
 378     priv->d3d9 = createD3D(D3D_SDK_VERSION);
 379     if (!priv->d3d9) {
 380         av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
 381         return AVERROR_UNKNOWN;
 382     }
 383
 384     IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
 385     d3dpp.Windowed         = TRUE;
 386     d3dpp.BackBufferWidth  = 640;
 387     d3dpp.BackBufferHeight = 480;
 388     d3dpp.BackBufferCount  = 0;
 389     d3dpp.BackBufferFormat = d3ddm.Format;
 390     d3dpp.SwapEffect       = D3DSWAPEFFECT_DISCARD;
 391     d3dpp.Flags            = D3DPRESENTFLAG_VIDEO;
 392
 393     hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
 394                                  D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
 395                                  &d3dpp, &priv->d3d9device);
 396     if (FAILED(hr)) {
 397         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
 398         return AVERROR_UNKNOWN;
 399     }
 400
 401     hr = createDeviceManager(&resetToken, &hwctx->devmgr);
 402     if (FAILED(hr)) {
 403         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
 404         return AVERROR_UNKNOWN;
 405     }
 406
 407     hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
 408     if (FAILED(hr)) {
 409         av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
 410         return AVERROR_UNKNOWN;
 411     }
 412
 413     hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
 414     if (FAILED(hr)) {
 415         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 416         return AVERROR_UNKNOWN;
 417     }
 418
 419     return 0;
 420 }
 421
 422 const HWContextType ff_hwcontext_type_dxva2 = {
 423     .type                 = AV_HWDEVICE_TYPE_DXVA2,
 424     .name                 = "DXVA2",
 425
 426     .device_hwctx_size    = sizeof(AVDXVA2DeviceContext),
 427     .frames_hwctx_size    = sizeof(AVDXVA2FramesContext),
 428     .frames_priv_size     = sizeof(DXVA2FramesContext),
 429
 430     .device_create        = dxva2_device_create,
 431     .frames_init          = dxva2_frames_init,
 432     .frames_uninit        = dxva2_frames_uninit,
 433     .frames_get_buffer    = dxva2_get_buffer,
 434     .transfer_get_formats = dxva2_transfer_get_formats,
 435     .transfer_data_to     = dxva2_transfer_data,
 436     .transfer_data_from   = dxva2_transfer_data,
 437
 438     .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
 439 };