8a050719b746e250e0c92f484fe0f6e69e48824d
[libav.git] / 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 };