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 pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
  44
  45 typedef struct DXVA2FramesContext {
  46     IDirect3DSurface9 **surfaces_internal;
  47     int              nb_surfaces_used;
  48
  49     HANDLE  device_handle;
  50     IDirectXVideoAccelerationService *service;
  51
  52     D3DFORMAT format;
  53 } DXVA2FramesContext;
  54
  55 typedef struct DXVA2DevicePriv {
  56     HMODULE d3dlib;
  57     HMODULE dxva2lib;
  58
  59     HANDLE device_handle;
  60
  61     IDirect3D9       *d3d9;
  62     IDirect3DDevice9 *d3d9device;
  63 } DXVA2DevicePriv;
  64
  65 static const struct {
  66     D3DFORMAT d3d_format;
  67     enum AVPixelFormat pix_fmt;
  68 } supported_formats[] = {
  69     { MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
  70     { MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
  71 };
  72
  73 DEFINE_GUID(video_decoder_service,   0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  74 DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
  75
  76 static void dxva2_frames_uninit(AVHWFramesContext *ctx)
  77 {
  78     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
  79     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
  80     DXVA2FramesContext *s = ctx->internal->priv;
  81     int i;
  82
  83     if (frames_hwctx->decoder_to_release)
  84         IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);
  85
  86     if (s->surfaces_internal) {
  87         for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
  88             if (s->surfaces_internal[i])
  89                 IDirect3DSurface9_Release(s->surfaces_internal[i]);
  90         }
  91     }
  92     av_freep(&s->surfaces_internal);
  93
  94     if (s->service) {
  95         IDirectXVideoAccelerationService_Release(s->service);
  96         s->service = NULL;
  97     }
  98
  99     if (s->device_handle != INVALID_HANDLE_VALUE) {
 100         IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
 101         s->device_handle = INVALID_HANDLE_VALUE;
 102     }
 103 }
 104
 105 static AVBufferRef *dxva2_pool_alloc(void *opaque, int size)
 106 {
 107     AVHWFramesContext      *ctx = (AVHWFramesContext*)opaque;
 108     DXVA2FramesContext       *s = ctx->internal->priv;
 109     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 110
 111     if (s->nb_surfaces_used < hwctx->nb_surfaces) {
 112         s->nb_surfaces_used++;
 113         return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
 114                                 sizeof(*hwctx->surfaces), NULL, 0, 0);
 115     }
 116
 117     return NULL;
 118 }
 119
 120 static int dxva2_init_pool(AVHWFramesContext *ctx)
 121 {
 122     AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
 123     AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
 124     DXVA2FramesContext              *s = ctx->internal->priv;
 125     int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);
 126
 127     int i;
 128     HRESULT hr;
 129
 130     if (ctx->initial_pool_size <= 0)
 131         return 0;
 132
 133     hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
 134     if (FAILED(hr)) {
 135         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 136         return AVERROR_UNKNOWN;
 137     }
 138
 139     hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
 140                                                  s->device_handle,
 141                                                  decode ? &video_decoder_service : &video_processor_service,
 142                                                  (void **)&s->service);
 143     if (FAILED(hr)) {
 144         av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
 145         return AVERROR_UNKNOWN;
 146     }
 147
 148     for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
 149         if (ctx->sw_format == supported_formats[i].pix_fmt) {
 150             s->format = supported_formats[i].d3d_format;
 151             break;
 152         }
 153     }
 154     if (i == FF_ARRAY_ELEMS(supported_formats)) {
 155         av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
 156                av_get_pix_fmt_name(ctx->sw_format));
 157         return AVERROR(EINVAL);
 158     }
 159
 160     s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
 161                                             sizeof(*s->surfaces_internal));
 162     if (!s->surfaces_internal)
 163         return AVERROR(ENOMEM);
 164
 165     hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
 166                                                         ctx->width, ctx->height,
 167                                                         ctx->initial_pool_size - 1,
 168                                                         s->format, D3DPOOL_DEFAULT, 0,
 169                                                         frames_hwctx->surface_type,
 170                                                         s->surfaces_internal, NULL);
 171     if (FAILED(hr)) {
 172         av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
 173         return AVERROR_UNKNOWN;
 174     }
 175
 176     ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
 177                                                         ctx, dxva2_pool_alloc, NULL);
 178     if (!ctx->internal->pool_internal)
 179         return AVERROR(ENOMEM);
 180
 181     frames_hwctx->surfaces    = s->surfaces_internal;
 182     frames_hwctx->nb_surfaces = ctx->initial_pool_size;
 183
 184     return 0;
 185 }
 186
 187 static int dxva2_frames_init(AVHWFramesContext *ctx)
 188 {
 189     AVDXVA2FramesContext *hwctx = ctx->hwctx;
 190     DXVA2FramesContext       *s = ctx->internal->priv;
 191     int ret;
 192
 193     if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
 194         hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
 195         av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
 196                hwctx->surface_type);
 197         return AVERROR(EINVAL);
 198     }
 199
 200     s->device_handle = INVALID_HANDLE_VALUE;
 201
 202     /* init the frame pool if the caller didn't provide one */
 203     if (!ctx->pool) {
 204         ret = dxva2_init_pool(ctx);
 205         if (ret < 0) {
 206             av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
 207             return ret;
 208         }
 209     }
 210
 211     return 0;
 212 }
 213
 214 static int dxva2_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
 215 {
 216     frame->buf[0] = av_buffer_pool_get(ctx->pool);
 217     if (!frame->buf[0])
 218         return AVERROR(ENOMEM);
 219
 220     frame->data[3] = frame->buf[0]->data;
 221     frame->format  = AV_PIX_FMT_DXVA2_VLD;
 222     frame->width   = ctx->width;
 223     frame->height  = ctx->height;
 224
 225     return 0;
 226 }
 227
 228 static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
 229                                       enum AVHWFrameTransferDirection dir,
 230                                       enum AVPixelFormat **formats)
 231 {
 232     enum AVPixelFormat *fmts;
 233
 234     fmts = av_malloc_array(2, sizeof(*fmts));
 235     if (!fmts)
 236         return AVERROR(ENOMEM);
 237
 238     fmts[0] = ctx->sw_format;
 239     fmts[1] = AV_PIX_FMT_NONE;
 240
 241     *formats = fmts;
 242
 243     return 0;
 244 }
 245
 246 static int dxva2_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
 247                                const AVFrame *src)
 248 {
 249     IDirect3DSurface9 *surface;
 250     D3DSURFACE_DESC    surfaceDesc;
 251     D3DLOCKED_RECT     LockedRect;
 252     HRESULT            hr;
 253
 254     int download = !!src->hw_frames_ctx;
 255     int bytes_per_component;
 256
 257     switch (ctx->sw_format) {
 258         case AV_PIX_FMT_NV12:
 259             bytes_per_component = 1;
 260             break;
 261         case AV_PIX_FMT_P010:
 262             bytes_per_component = 2;
 263             break;
 264         default:
 265             av_assert0(0);
 266     }
 267
 268     surface = (IDirect3DSurface9*)(download ? src->data[3] : dst->data[3]);
 269
 270     hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
 271     if (FAILED(hr)) {
 272         av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
 273         return AVERROR_UNKNOWN;
 274     }
 275
 276     hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL,
 277                                     download ? D3DLOCK_READONLY : D3DLOCK_DISCARD);
 278     if (FAILED(hr)) {
 279         av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
 280         return AVERROR_UNKNOWN;
 281     }
 282
 283     if (download) {
 284         av_image_copy_plane(dst->data[0], dst->linesize[0],
 285                             (uint8_t*)LockedRect.pBits, LockedRect.Pitch,
 286                             src->width * bytes_per_component, src->height);
 287         av_image_copy_plane(dst->data[1], dst->linesize[1],
 288                             (uint8_t*)LockedRect.pBits + LockedRect.Pitch * surfaceDesc.Height,
 289                             LockedRect.Pitch, src->width * bytes_per_component, src->height / 2);
 290     } else {
 291         av_image_copy_plane((uint8_t*)LockedRect.pBits, LockedRect.Pitch,
 292                             dst->data[0], dst->linesize[0],
 293                             src->width * bytes_per_component, src->height);
 294         av_image_copy_plane((uint8_t*)LockedRect.pBits + LockedRect.Pitch * surfaceDesc.Height,
 295                             LockedRect.Pitch, dst->data[1], dst->linesize[1],
 296                             src->width * bytes_per_component, src->height / 2);
 297     }
 298
 299     IDirect3DSurface9_UnlockRect(surface);
 300
 301     return 0;
 302 }
 303
 304 static void dxva2_device_free(AVHWDeviceContext *ctx)
 305 {
 306     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 307     DXVA2DevicePriv       *priv = ctx->user_opaque;
 308
 309     if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
 310         IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);
 311
 312     if (hwctx->devmgr)
 313         IDirect3DDeviceManager9_Release(hwctx->devmgr);
 314
 315     if (priv->d3d9device)
 316         IDirect3DDevice9_Release(priv->d3d9device);
 317
 318     if (priv->d3d9)
 319         IDirect3D9_Release(priv->d3d9);
 320
 321     if (priv->d3dlib)
 322         dlclose(priv->d3dlib);
 323
 324     if (priv->dxva2lib)
 325         dlclose(priv->dxva2lib);
 326
 327     av_freep(&ctx->user_opaque);
 328 }
 329
 330 static int dxva2_device_create(AVHWDeviceContext *ctx, const char *device,
 331                                AVDictionary *opts, int flags)
 332 {
 333     AVDXVA2DeviceContext *hwctx = ctx->hwctx;
 334     DXVA2DevicePriv *priv;
 335
 336     pDirect3DCreate9 *createD3D = NULL;
 337     pCreateDeviceManager9 *createDeviceManager = NULL;
 338     D3DPRESENT_PARAMETERS d3dpp = {0};
 339     D3DDISPLAYMODE        d3ddm;
 340     unsigned resetToken = 0;
 341     UINT adapter = D3DADAPTER_DEFAULT;
 342     HRESULT hr;
 343
 344     if (device)
 345         adapter = atoi(device);
 346
 347     priv = av_mallocz(sizeof(*priv));
 348     if (!priv)
 349         return AVERROR(ENOMEM);
 350
 351     ctx->user_opaque = priv;
 352     ctx->free        = dxva2_device_free;
 353
 354     priv->device_handle = INVALID_HANDLE_VALUE;
 355
 356     priv->d3dlib = dlopen("d3d9.dll", 0);
 357     if (!priv->d3dlib) {
 358         av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
 359         return AVERROR_UNKNOWN;
 360     }
 361     priv->dxva2lib = dlopen("dxva2.dll", 0);
 362     if (!priv->dxva2lib) {
 363         av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
 364         return AVERROR_UNKNOWN;
 365     }
 366
 367     createD3D = (pDirect3DCreate9 *)dlsym(priv->d3dlib, "Direct3DCreate9");
 368     if (!createD3D) {
 369         av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
 370         return AVERROR_UNKNOWN;
 371     }
 372     createDeviceManager = (pCreateDeviceManager9 *)dlsym(priv->dxva2lib,
 373                                                          "DXVA2CreateDirect3DDeviceManager9");
 374     if (!createDeviceManager) {
 375         av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
 376         return AVERROR_UNKNOWN;
 377     }
 378
 379     priv->d3d9 = createD3D(D3D_SDK_VERSION);
 380     if (!priv->d3d9) {
 381         av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
 382         return AVERROR_UNKNOWN;
 383     }
 384
 385     IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
 386     d3dpp.Windowed         = TRUE;
 387     d3dpp.BackBufferWidth  = 640;
 388     d3dpp.BackBufferHeight = 480;
 389     d3dpp.BackBufferCount  = 0;
 390     d3dpp.BackBufferFormat = d3ddm.Format;
 391     d3dpp.SwapEffect       = D3DSWAPEFFECT_DISCARD;
 392     d3dpp.Flags            = D3DPRESENTFLAG_VIDEO;
 393
 394     hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
 395                                  D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
 396                                  &d3dpp, &priv->d3d9device);
 397     if (FAILED(hr)) {
 398         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
 399         return AVERROR_UNKNOWN;
 400     }
 401
 402     hr = createDeviceManager(&resetToken, &hwctx->devmgr);
 403     if (FAILED(hr)) {
 404         av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
 405         return AVERROR_UNKNOWN;
 406     }
 407
 408     hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
 409     if (FAILED(hr)) {
 410         av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
 411         return AVERROR_UNKNOWN;
 412     }
 413
 414     hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
 415     if (FAILED(hr)) {
 416         av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
 417         return AVERROR_UNKNOWN;
 418     }
 419
 420     return 0;
 421 }
 422
 423 const HWContextType ff_hwcontext_type_dxva2 = {
 424     .type                 = AV_HWDEVICE_TYPE_DXVA2,
 425     .name                 = "DXVA2",
 426
 427     .device_hwctx_size    = sizeof(AVDXVA2DeviceContext),
 428     .frames_hwctx_size    = sizeof(AVDXVA2FramesContext),
 429     .frames_priv_size     = sizeof(DXVA2FramesContext),
 430
 431     .device_create        = dxva2_device_create,
 432     .frames_init          = dxva2_frames_init,
 433     .frames_uninit        = dxva2_frames_uninit,
 434     .frames_get_buffer    = dxva2_get_buffer,
 435     .transfer_get_formats = dxva2_transfer_get_formats,
 436     .transfer_data_to     = dxva2_transfer_data,
 437     .transfer_data_from   = dxva2_transfer_data,
 438
 439     .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
 440 };