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 #ifdef _WIN32_WINNT
22 #undef _WIN32_WINNT
23 #endif
24 #define _WIN32_WINNT 0x0600
25 #define DXVA2API_USE_BITFIELDS
26 #define COBJMACROS
27
28 #include <stdint.h>
29
30 #include <d3d9.h>
31 #include <dxva2api.h>
32
33 #include "ffmpeg.h"
34
35 #include "libavcodec/dxva2.h"
36
37 #include "libavutil/avassert.h"
38 #include "libavutil/buffer.h"
39 #include "libavutil/frame.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/pixfmt.h"
42
43 /* define all the GUIDs used directly here,
44 to avoid problems with inconsistent dxva2api.h versions in mingw-w64 and different MSVC version */
45 #include <initguid.h>
46 DEFINE_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551,0xd5e7,0x11d9,0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
47
48 DEFINE_GUID(DXVA2_ModeMPEG2_VLD, 0xee27417f, 0x5e28,0x4e65,0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9);
49 DEFINE_GUID(DXVA2_ModeMPEG2and1_VLD, 0x86695f12, 0x340e,0x4f04,0x9f,0xd3,0x92,0x53,0xdd,0x32,0x74,0x60);
50 DEFINE_GUID(DXVA2_ModeH264_E, 0x1b81be68, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
51 DEFINE_GUID(DXVA2_ModeH264_F, 0x1b81be69, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
52 DEFINE_GUID(DXVADDI_Intel_ModeH264_E, 0x604F8E68, 0x4951,0x4C54,0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6);
53 DEFINE_GUID(DXVA2_ModeVC1_D, 0x1b81beA3, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
54 DEFINE_GUID(DXVA2_ModeVC1_D2010, 0x1b81beA4, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
55 DEFINE_GUID(DXVA2_ModeHEVC_VLD_Main, 0x5b11d51b, 0x2f4c,0x4452,0xbc,0xc3,0x09,0xf2,0xa1,0x16,0x0c,0xc0);
56 DEFINE_GUID(DXVA2_ModeVP9_VLD_Profile0, 0x463707f8, 0xa1d0,0x4585,0x87,0x6d,0x83,0xaa,0x6d,0x60,0xb8,0x9e);
57 DEFINE_GUID(DXVA2_NoEncrypt, 0x1b81beD0, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
58 DEFINE_GUID(GUID_NULL, 0x00000000, 0x0000,0x0000,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00);
59
60 typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
61 typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
62
63 typedef struct dxva2_mode {
64 const GUID *guid;
65 enum AVCodecID codec;
66 } dxva2_mode;
67
68 static const dxva2_mode dxva2_modes[] = {
69 /* MPEG-2 */
70 { &DXVA2_ModeMPEG2_VLD, AV_CODEC_ID_MPEG2VIDEO },
71 { &DXVA2_ModeMPEG2and1_VLD, AV_CODEC_ID_MPEG2VIDEO },
72
73 /* H.264 */
74 { &DXVA2_ModeH264_F, AV_CODEC_ID_H264 },
75 { &DXVA2_ModeH264_E, AV_CODEC_ID_H264 },
76 /* Intel specific H.264 mode */
77 { &DXVADDI_Intel_ModeH264_E, AV_CODEC_ID_H264 },
78
79 /* VC-1 / WMV3 */
80 { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_VC1 },
81 { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_WMV3 },
82 { &DXVA2_ModeVC1_D, AV_CODEC_ID_VC1 },
83 { &DXVA2_ModeVC1_D, AV_CODEC_ID_WMV3 },
84
85 /* HEVC/H.265 */
86 { &DXVA2_ModeHEVC_VLD_Main, AV_CODEC_ID_HEVC },
87
88 /* VP8/9 */
89 { &DXVA2_ModeVP9_VLD_Profile0, AV_CODEC_ID_VP9 },
90
91 { NULL, 0 },
92 };
93
94 typedef struct surface_info {
95 int used;
96 uint64_t age;
97 } surface_info;
98
99 typedef struct DXVA2Context {
100 HMODULE d3dlib;
101 HMODULE dxva2lib;
102
103 HANDLE deviceHandle;
104
105 IDirect3D9 *d3d9;
106 IDirect3DDevice9 *d3d9device;
107 IDirect3DDeviceManager9 *d3d9devmgr;
108 IDirectXVideoDecoderService *decoder_service;
109 IDirectXVideoDecoder *decoder;
110
111 GUID decoder_guid;
112 DXVA2_ConfigPictureDecode decoder_config;
113
114 LPDIRECT3DSURFACE9 *surfaces;
115 surface_info *surface_infos;
116 uint32_t num_surfaces;
117 uint64_t surface_age;
118
119 AVFrame *tmp_frame;
120 } DXVA2Context;
121
122 typedef struct DXVA2SurfaceWrapper {
123 DXVA2Context *ctx;
124 LPDIRECT3DSURFACE9 surface;
125 IDirectXVideoDecoder *decoder;
126 } DXVA2SurfaceWrapper;
127
dxva2_destroy_decoder(AVCodecContext * s)128 static void dxva2_destroy_decoder(AVCodecContext *s)
129 {
130 InputStream *ist = s->opaque;
131 DXVA2Context *ctx = ist->hwaccel_ctx;
132 int i;
133
134 if (ctx->surfaces) {
135 for (i = 0; i < ctx->num_surfaces; i++) {
136 if (ctx->surfaces[i])
137 IDirect3DSurface9_Release(ctx->surfaces[i]);
138 }
139 }
140 av_freep(&ctx->surfaces);
141 av_freep(&ctx->surface_infos);
142 ctx->num_surfaces = 0;
143 ctx->surface_age = 0;
144
145 if (ctx->decoder) {
146 IDirectXVideoDecoder_Release(ctx->decoder);
147 ctx->decoder = NULL;
148 }
149 }
150
dxva2_uninit(AVCodecContext * s)151 static void dxva2_uninit(AVCodecContext *s)
152 {
153 InputStream *ist = s->opaque;
154 DXVA2Context *ctx = ist->hwaccel_ctx;
155
156 ist->hwaccel_uninit = NULL;
157 ist->hwaccel_get_buffer = NULL;
158 ist->hwaccel_retrieve_data = NULL;
159
160 if (ctx->decoder)
161 dxva2_destroy_decoder(s);
162
163 if (ctx->decoder_service)
164 IDirectXVideoDecoderService_Release(ctx->decoder_service);
165
166 if (ctx->d3d9devmgr && ctx->deviceHandle != INVALID_HANDLE_VALUE)
167 IDirect3DDeviceManager9_CloseDeviceHandle(ctx->d3d9devmgr, ctx->deviceHandle);
168
169 if (ctx->d3d9devmgr)
170 IDirect3DDeviceManager9_Release(ctx->d3d9devmgr);
171
172 if (ctx->d3d9device)
173 IDirect3DDevice9_Release(ctx->d3d9device);
174
175 if (ctx->d3d9)
176 IDirect3D9_Release(ctx->d3d9);
177
178 if (ctx->d3dlib)
179 FreeLibrary(ctx->d3dlib);
180
181 if (ctx->dxva2lib)
182 FreeLibrary(ctx->dxva2lib);
183
184 av_frame_free(&ctx->tmp_frame);
185
186 av_freep(&ist->hwaccel_ctx);
187 av_freep(&s->hwaccel_context);
188 }
189
dxva2_release_buffer(void * opaque,uint8_t * data)190 static void dxva2_release_buffer(void *opaque, uint8_t *data)
191 {
192 DXVA2SurfaceWrapper *w = opaque;
193 DXVA2Context *ctx = w->ctx;
194 int i;
195
196 for (i = 0; i < ctx->num_surfaces; i++) {
197 if (ctx->surfaces[i] == w->surface) {
198 ctx->surface_infos[i].used = 0;
199 break;
200 }
201 }
202 IDirect3DSurface9_Release(w->surface);
203 IDirectXVideoDecoder_Release(w->decoder);
204 av_free(w);
205 }
206
dxva2_get_buffer(AVCodecContext * s,AVFrame * frame,int flags)207 static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
208 {
209 InputStream *ist = s->opaque;
210 DXVA2Context *ctx = ist->hwaccel_ctx;
211 int i, old_unused = -1;
212 LPDIRECT3DSURFACE9 surface;
213 DXVA2SurfaceWrapper *w = NULL;
214
215 av_assert0(frame->format == AV_PIX_FMT_DXVA2_VLD);
216
217 for (i = 0; i < ctx->num_surfaces; i++) {
218 surface_info *info = &ctx->surface_infos[i];
219 if (!info->used && (old_unused == -1 || info->age < ctx->surface_infos[old_unused].age))
220 old_unused = i;
221 }
222 if (old_unused == -1) {
223 av_log(NULL, AV_LOG_ERROR, "No free DXVA2 surface!\n");
224 return AVERROR(ENOMEM);
225 }
226 i = old_unused;
227
228 surface = ctx->surfaces[i];
229
230 w = av_mallocz(sizeof(*w));
231 if (!w)
232 return AVERROR(ENOMEM);
233
234 frame->buf[0] = av_buffer_create((uint8_t*)surface, 0,
235 dxva2_release_buffer, w,
236 AV_BUFFER_FLAG_READONLY);
237 if (!frame->buf[0]) {
238 av_free(w);
239 return AVERROR(ENOMEM);
240 }
241
242 w->ctx = ctx;
243 w->surface = surface;
244 IDirect3DSurface9_AddRef(w->surface);
245 w->decoder = ctx->decoder;
246 IDirectXVideoDecoder_AddRef(w->decoder);
247
248 ctx->surface_infos[i].used = 1;
249 ctx->surface_infos[i].age = ctx->surface_age++;
250
251 frame->data[3] = (uint8_t *)surface;
252
253 return 0;
254 }
255
dxva2_retrieve_data(AVCodecContext * s,AVFrame * frame)256 static int dxva2_retrieve_data(AVCodecContext *s, AVFrame *frame)
257 {
258 LPDIRECT3DSURFACE9 surface = (LPDIRECT3DSURFACE9)frame->data[3];
259 InputStream *ist = s->opaque;
260 DXVA2Context *ctx = ist->hwaccel_ctx;
261 D3DSURFACE_DESC surfaceDesc;
262 D3DLOCKED_RECT LockedRect;
263 HRESULT hr;
264 int ret;
265
266 IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
267
268 ctx->tmp_frame->width = frame->width;
269 ctx->tmp_frame->height = frame->height;
270 ctx->tmp_frame->format = AV_PIX_FMT_NV12;
271
272 ret = av_frame_get_buffer(ctx->tmp_frame, 32);
273 if (ret < 0)
274 return ret;
275
276 hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL, D3DLOCK_READONLY);
277 if (FAILED(hr)) {
278 av_log(NULL, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
279 return AVERROR_UNKNOWN;
280 }
281
282 av_image_copy_plane(ctx->tmp_frame->data[0], ctx->tmp_frame->linesize[0],
283 (uint8_t*)LockedRect.pBits,
284 LockedRect.Pitch, frame->width, frame->height);
285
286 av_image_copy_plane(ctx->tmp_frame->data[1], ctx->tmp_frame->linesize[1],
287 (uint8_t*)LockedRect.pBits + LockedRect.Pitch * surfaceDesc.Height,
288 LockedRect.Pitch, frame->width, frame->height / 2);
289
290 IDirect3DSurface9_UnlockRect(surface);
291
292 ret = av_frame_copy_props(ctx->tmp_frame, frame);
293 if (ret < 0)
294 goto fail;
295
296 av_frame_unref(frame);
297 av_frame_move_ref(frame, ctx->tmp_frame);
298
299 return 0;
300 fail:
301 av_frame_unref(ctx->tmp_frame);
302 return ret;
303 }
304
dxva2_alloc(AVCodecContext * s)305 static int dxva2_alloc(AVCodecContext *s)
306 {
307 InputStream *ist = s->opaque;
308 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
309 DXVA2Context *ctx;
310 pDirect3DCreate9 *createD3D = NULL;
311 pCreateDeviceManager9 *createDeviceManager = NULL;
312 HRESULT hr;
313 D3DPRESENT_PARAMETERS d3dpp = {0};
314 D3DDISPLAYMODE d3ddm;
315 unsigned resetToken = 0;
316 UINT adapter = D3DADAPTER_DEFAULT;
317
318 ctx = av_mallocz(sizeof(*ctx));
319 if (!ctx)
320 return AVERROR(ENOMEM);
321
322 ctx->deviceHandle = INVALID_HANDLE_VALUE;
323
324 ist->hwaccel_ctx = ctx;
325 ist->hwaccel_uninit = dxva2_uninit;
326 ist->hwaccel_get_buffer = dxva2_get_buffer;
327 ist->hwaccel_retrieve_data = dxva2_retrieve_data;
328
329 ctx->d3dlib = LoadLibrary("d3d9.dll");
330 if (!ctx->d3dlib) {
331 av_log(NULL, loglevel, "Failed to load D3D9 library\n");
332 goto fail;
333 }
334 ctx->dxva2lib = LoadLibrary("dxva2.dll");
335 if (!ctx->dxva2lib) {
336 av_log(NULL, loglevel, "Failed to load DXVA2 library\n");
337 goto fail;
338 }
339
340 createD3D = (pDirect3DCreate9 *)GetProcAddress(ctx->d3dlib, "Direct3DCreate9");
341 if (!createD3D) {
342 av_log(NULL, loglevel, "Failed to locate Direct3DCreate9\n");
343 goto fail;
344 }
345 createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(ctx->dxva2lib, "DXVA2CreateDirect3DDeviceManager9");
346 if (!createDeviceManager) {
347 av_log(NULL, loglevel, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
348 goto fail;
349 }
350
351 ctx->d3d9 = createD3D(D3D_SDK_VERSION);
352 if (!ctx->d3d9) {
353 av_log(NULL, loglevel, "Failed to create IDirect3D object\n");
354 goto fail;
355 }
356
357 if (ist->hwaccel_device) {
358 adapter = atoi(ist->hwaccel_device);
359 av_log(NULL, AV_LOG_INFO, "Using HWAccel device %d\n", adapter);
360 }
361
362 IDirect3D9_GetAdapterDisplayMode(ctx->d3d9, adapter, &d3ddm);
363 d3dpp.Windowed = TRUE;
364 d3dpp.BackBufferWidth = 640;
365 d3dpp.BackBufferHeight = 480;
366 d3dpp.BackBufferCount = 0;
367 d3dpp.BackBufferFormat = d3ddm.Format;
368 d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
369 d3dpp.Flags = D3DPRESENTFLAG_VIDEO;
370
371 hr = IDirect3D9_CreateDevice(ctx->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
372 D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
373 &d3dpp, &ctx->d3d9device);
374 if (FAILED(hr)) {
375 av_log(NULL, loglevel, "Failed to create Direct3D device\n");
376 goto fail;
377 }
378
379 hr = createDeviceManager(&resetToken, &ctx->d3d9devmgr);
380 if (FAILED(hr)) {
381 av_log(NULL, loglevel, "Failed to create Direct3D device manager\n");
382 goto fail;
383 }
384
385 hr = IDirect3DDeviceManager9_ResetDevice(ctx->d3d9devmgr, ctx->d3d9device, resetToken);
386 if (FAILED(hr)) {
387 av_log(NULL, loglevel, "Failed to bind Direct3D device to device manager\n");
388 goto fail;
389 }
390
391 hr = IDirect3DDeviceManager9_OpenDeviceHandle(ctx->d3d9devmgr, &ctx->deviceHandle);
392 if (FAILED(hr)) {
393 av_log(NULL, loglevel, "Failed to open device handle\n");
394 goto fail;
395 }
396
397 hr = IDirect3DDeviceManager9_GetVideoService(ctx->d3d9devmgr, ctx->deviceHandle, &IID_IDirectXVideoDecoderService, (void **)&ctx->decoder_service);
398 if (FAILED(hr)) {
399 av_log(NULL, loglevel, "Failed to create IDirectXVideoDecoderService\n");
400 goto fail;
401 }
402
403 ctx->tmp_frame = av_frame_alloc();
404 if (!ctx->tmp_frame)
405 goto fail;
406
407 s->hwaccel_context = av_mallocz(sizeof(struct dxva_context));
408 if (!s->hwaccel_context)
409 goto fail;
410
411 return 0;
412 fail:
413 dxva2_uninit(s);
414 return AVERROR(EINVAL);
415 }
416
dxva2_get_decoder_configuration(AVCodecContext * s,const GUID * device_guid,const DXVA2_VideoDesc * desc,DXVA2_ConfigPictureDecode * config)417 static int dxva2_get_decoder_configuration(AVCodecContext *s, const GUID *device_guid,
418 const DXVA2_VideoDesc *desc,
419 DXVA2_ConfigPictureDecode *config)
420 {
421 InputStream *ist = s->opaque;
422 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
423 DXVA2Context *ctx = ist->hwaccel_ctx;
424 unsigned cfg_count = 0, best_score = 0;
425 DXVA2_ConfigPictureDecode *cfg_list = NULL;
426 DXVA2_ConfigPictureDecode best_cfg = {{0}};
427 HRESULT hr;
428 int i;
429
430 hr = IDirectXVideoDecoderService_GetDecoderConfigurations(ctx->decoder_service, device_guid, desc, NULL, &cfg_count, &cfg_list);
431 if (FAILED(hr)) {
432 av_log(NULL, loglevel, "Unable to retrieve decoder configurations\n");
433 return AVERROR(EINVAL);
434 }
435
436 for (i = 0; i < cfg_count; i++) {
437 DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
438
439 unsigned score;
440 if (cfg->ConfigBitstreamRaw == 1)
441 score = 1;
442 else if (s->codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
443 score = 2;
444 else
445 continue;
446 if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA2_NoEncrypt))
447 score += 16;
448 if (score > best_score) {
449 best_score = score;
450 best_cfg = *cfg;
451 }
452 }
453 CoTaskMemFree(cfg_list);
454
455 if (!best_score) {
456 av_log(NULL, loglevel, "No valid decoder configuration available\n");
457 return AVERROR(EINVAL);
458 }
459
460 *config = best_cfg;
461 return 0;
462 }
463
dxva2_create_decoder(AVCodecContext * s)464 static int dxva2_create_decoder(AVCodecContext *s)
465 {
466 InputStream *ist = s->opaque;
467 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
468 DXVA2Context *ctx = ist->hwaccel_ctx;
469 struct dxva_context *dxva_ctx = s->hwaccel_context;
470 GUID *guid_list = NULL;
471 unsigned guid_count = 0, i, j;
472 GUID device_guid = GUID_NULL;
473 D3DFORMAT target_format = 0;
474 DXVA2_VideoDesc desc = { 0 };
475 DXVA2_ConfigPictureDecode config;
476 HRESULT hr;
477 int surface_alignment;
478 int ret;
479
480 hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list);
481 if (FAILED(hr)) {
482 av_log(NULL, loglevel, "Failed to retrieve decoder device GUIDs\n");
483 goto fail;
484 }
485
486 for (i = 0; dxva2_modes[i].guid; i++) {
487 D3DFORMAT *target_list = NULL;
488 unsigned target_count = 0;
489 const dxva2_mode *mode = &dxva2_modes[i];
490 if (mode->codec != s->codec_id)
491 continue;
492
493 for (j = 0; j < guid_count; j++) {
494 if (IsEqualGUID(mode->guid, &guid_list[j]))
495 break;
496 }
497 if (j == guid_count)
498 continue;
499
500 hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list);
501 if (FAILED(hr)) {
502 continue;
503 }
504 for (j = 0; j < target_count; j++) {
505 const D3DFORMAT format = target_list[j];
506 if (format == MKTAG('N','V','1','2')) {
507 target_format = format;
508 break;
509 }
510 }
511 CoTaskMemFree(target_list);
512 if (target_format) {
513 device_guid = *mode->guid;
514 break;
515 }
516 }
517 CoTaskMemFree(guid_list);
518
519 if (IsEqualGUID(&device_guid, &GUID_NULL)) {
520 av_log(NULL, loglevel, "No decoder device for codec found\n");
521 goto fail;
522 }
523
524 desc.SampleWidth = s->coded_width;
525 desc.SampleHeight = s->coded_height;
526 desc.Format = target_format;
527
528 ret = dxva2_get_decoder_configuration(s, &device_guid, &desc, &config);
529 if (ret < 0) {
530 goto fail;
531 }
532
533 /* decoding MPEG-2 requires additional alignment on some Intel GPUs,
534 but it causes issues for H.264 on certain AMD GPUs..... */
535 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO)
536 surface_alignment = 32;
537 /* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
538 all coding features have enough room to work with */
539 else if (s->codec_id == AV_CODEC_ID_HEVC)
540 surface_alignment = 128;
541 else
542 surface_alignment = 16;
543
544 /* 4 base work surfaces */
545 ctx->num_surfaces = 4;
546
547 /* add surfaces based on number of possible refs */
548 if (s->codec_id == AV_CODEC_ID_H264 || s->codec_id == AV_CODEC_ID_HEVC)
549 ctx->num_surfaces += 16;
550 else if (s->codec_id == AV_CODEC_ID_VP9)
551 ctx->num_surfaces += 8;
552 else
553 ctx->num_surfaces += 2;
554
555 /* add extra surfaces for frame threading */
556 if (s->active_thread_type & FF_THREAD_FRAME)
557 ctx->num_surfaces += s->thread_count;
558
559 ctx->surfaces = av_mallocz(ctx->num_surfaces * sizeof(*ctx->surfaces));
560 ctx->surface_infos = av_mallocz(ctx->num_surfaces * sizeof(*ctx->surface_infos));
561
562 if (!ctx->surfaces || !ctx->surface_infos) {
563 av_log(NULL, loglevel, "Unable to allocate surface arrays\n");
564 goto fail;
565 }
566
567 hr = IDirectXVideoDecoderService_CreateSurface(ctx->decoder_service,
568 FFALIGN(s->coded_width, surface_alignment),
569 FFALIGN(s->coded_height, surface_alignment),
570 ctx->num_surfaces - 1,
571 target_format, D3DPOOL_DEFAULT, 0,
572 DXVA2_VideoDecoderRenderTarget,
573 ctx->surfaces, NULL);
574 if (FAILED(hr)) {
575 av_log(NULL, loglevel, "Failed to create %d video surfaces\n", ctx->num_surfaces);
576 goto fail;
577 }
578
579 hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid,
580 &desc, &config, ctx->surfaces,
581 ctx->num_surfaces, &ctx->decoder);
582 if (FAILED(hr)) {
583 av_log(NULL, loglevel, "Failed to create DXVA2 video decoder\n");
584 goto fail;
585 }
586
587 ctx->decoder_guid = device_guid;
588 ctx->decoder_config = config;
589
590 dxva_ctx->cfg = &ctx->decoder_config;
591 dxva_ctx->decoder = ctx->decoder;
592 dxva_ctx->surface = ctx->surfaces;
593 dxva_ctx->surface_count = ctx->num_surfaces;
594
595 if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E))
596 dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
597
598 return 0;
599 fail:
600 dxva2_destroy_decoder(s);
601 return AVERROR(EINVAL);
602 }
603
dxva2_init(AVCodecContext * s)604 int dxva2_init(AVCodecContext *s)
605 {
606 InputStream *ist = s->opaque;
607 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
608 DXVA2Context *ctx;
609 int ret;
610
611 if (!ist->hwaccel_ctx) {
612 ret = dxva2_alloc(s);
613 if (ret < 0)
614 return ret;
615 }
616 ctx = ist->hwaccel_ctx;
617
618 if (s->codec_id == AV_CODEC_ID_H264 &&
619 (s->profile & ~FF_PROFILE_H264_CONSTRAINED) > FF_PROFILE_H264_HIGH) {
620 av_log(NULL, loglevel, "Unsupported H.264 profile for DXVA2 HWAccel: %d\n", s->profile);
621 return AVERROR(EINVAL);
622 }
623
624 if (ctx->decoder)
625 dxva2_destroy_decoder(s);
626
627 ret = dxva2_create_decoder(s);
628 if (ret < 0) {
629 av_log(NULL, loglevel, "Error creating the DXVA2 decoder\n");
630 return ret;
631 }
632
633 return 0;
634 }
635