2 * This file is part of FFmpeg.
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.
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.
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
21 #if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600
23 #define _WIN32_WINNT 0x0600
25 #define DXVA2API_USE_BITFIELDS
34 #include "hwcontext.h"
35 #include "hwcontext_dxva2.h"
36 #include "hwcontext_internal.h"
40 #include "compat/w32dlfcn.h"
42 typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
43 typedef HRESULT WINAPI pDirect3DCreate9Ex(UINT, IDirect3D9Ex **);
44 typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
46 #define FF_D3DCREATE_FLAGS (D3DCREATE_SOFTWARE_VERTEXPROCESSING | \
47 D3DCREATE_MULTITHREADED | \
48 D3DCREATE_FPU_PRESERVE)
50 static const D3DPRESENT_PARAMETERS dxva2_present_params = {
52 .BackBufferWidth = 640,
53 .BackBufferHeight = 480,
55 .SwapEffect = D3DSWAPEFFECT_DISCARD,
56 .Flags = D3DPRESENTFLAG_VIDEO,
59 typedef struct DXVA2Mapping {
60 uint32_t palette_dummy[256];
63 typedef struct DXVA2FramesContext {
64 IDirect3DSurface9 **surfaces_internal;
68 IDirectXVideoAccelerationService *service;
73 typedef struct DXVA2DevicePriv {
80 IDirect3DDevice9 *d3d9device;
85 enum AVPixelFormat pix_fmt;
86 } supported_formats[] = {
87 { MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
88 { MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
89 { D3DFMT_P8, AV_PIX_FMT_PAL8 },
92 DEFINE_GUID(video_decoder_service, 0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
93 DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
95 static void dxva2_frames_uninit(AVHWFramesContext *ctx)
97 AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
98 AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
99 DXVA2FramesContext *s = ctx->internal->priv;
102 if (frames_hwctx->decoder_to_release)
103 IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);
105 if (s->surfaces_internal) {
106 for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
107 if (s->surfaces_internal[i])
108 IDirect3DSurface9_Release(s->surfaces_internal[i]);
111 av_freep(&s->surfaces_internal);
114 IDirectXVideoAccelerationService_Release(s->service);
118 if (s->device_handle != INVALID_HANDLE_VALUE) {
119 IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
120 s->device_handle = INVALID_HANDLE_VALUE;
124 static void dxva2_pool_release_dummy(void *opaque, uint8_t *data)
126 // important not to free anything here--data is a surface object
127 // associated with the call to CreateSurface(), and these surfaces are
128 // released in dxva2_frames_uninit()
131 static AVBufferRef *dxva2_pool_alloc(void *opaque, int size)
133 AVHWFramesContext *ctx = (AVHWFramesContext*)opaque;
134 DXVA2FramesContext *s = ctx->internal->priv;
135 AVDXVA2FramesContext *hwctx = ctx->hwctx;
137 if (s->nb_surfaces_used < hwctx->nb_surfaces) {
138 s->nb_surfaces_used++;
139 return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
140 sizeof(*hwctx->surfaces), dxva2_pool_release_dummy, 0, 0);
146 static int dxva2_init_pool(AVHWFramesContext *ctx)
148 AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
149 AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
150 DXVA2FramesContext *s = ctx->internal->priv;
151 int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);
156 if (ctx->initial_pool_size <= 0)
159 hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
161 av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
162 return AVERROR_UNKNOWN;
165 hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
167 decode ? &video_decoder_service : &video_processor_service,
168 (void **)&s->service);
170 av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
171 return AVERROR_UNKNOWN;
174 for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
175 if (ctx->sw_format == supported_formats[i].pix_fmt) {
176 s->format = supported_formats[i].d3d_format;
180 if (i == FF_ARRAY_ELEMS(supported_formats)) {
181 av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
182 av_get_pix_fmt_name(ctx->sw_format));
183 return AVERROR(EINVAL);
186 s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
187 sizeof(*s->surfaces_internal));
188 if (!s->surfaces_internal)
189 return AVERROR(ENOMEM);
191 hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
192 ctx->width, ctx->height,
193 ctx->initial_pool_size - 1,
194 s->format, D3DPOOL_DEFAULT, 0,
195 frames_hwctx->surface_type,
196 s->surfaces_internal, NULL);
198 av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
199 return AVERROR_UNKNOWN;
202 ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
203 ctx, dxva2_pool_alloc, NULL);
204 if (!ctx->internal->pool_internal)
205 return AVERROR(ENOMEM);
207 frames_hwctx->surfaces = s->surfaces_internal;
208 frames_hwctx->nb_surfaces = ctx->initial_pool_size;
213 static int dxva2_frames_init(AVHWFramesContext *ctx)
215 AVDXVA2FramesContext *hwctx = ctx->hwctx;
216 DXVA2FramesContext *s = ctx->internal->priv;
219 if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
220 hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
221 av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
222 hwctx->surface_type);
223 return AVERROR(EINVAL);
226 s->device_handle = INVALID_HANDLE_VALUE;
228 /* init the frame pool if the caller didn't provide one */
230 ret = dxva2_init_pool(ctx);
232 av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
240 static int dxva2_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
242 frame->buf[0] = av_buffer_pool_get(ctx->pool);
244 return AVERROR(ENOMEM);
246 frame->data[3] = frame->buf[0]->data;
247 frame->format = AV_PIX_FMT_DXVA2_VLD;
248 frame->width = ctx->width;
249 frame->height = ctx->height;
254 static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
255 enum AVHWFrameTransferDirection dir,
256 enum AVPixelFormat **formats)
258 enum AVPixelFormat *fmts;
260 fmts = av_malloc_array(2, sizeof(*fmts));
262 return AVERROR(ENOMEM);
264 fmts[0] = ctx->sw_format;
265 fmts[1] = AV_PIX_FMT_NONE;
272 static void dxva2_unmap_frame(AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
274 IDirect3DSurface9 *surface = (IDirect3DSurface9*)hwmap->source->data[3];
275 IDirect3DSurface9_UnlockRect(surface);
276 av_freep(&hwmap->priv);
279 static int dxva2_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src,
282 IDirect3DSurface9 *surface = (IDirect3DSurface9*)src->data[3];
284 D3DSURFACE_DESC surfaceDesc;
285 D3DLOCKED_RECT LockedRect;
287 int i, err, nb_planes;
290 nb_planes = av_pix_fmt_count_planes(dst->format);
292 hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
294 av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
295 return AVERROR_UNKNOWN;
298 if (!(flags & AV_HWFRAME_MAP_WRITE))
299 lock_flags |= D3DLOCK_READONLY;
300 if (flags & AV_HWFRAME_MAP_OVERWRITE)
301 lock_flags |= D3DLOCK_DISCARD;
303 hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL, lock_flags);
305 av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
306 return AVERROR_UNKNOWN;
309 map = av_mallocz(sizeof(*map));
313 err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
314 dxva2_unmap_frame, map);
320 for (i = 0; i < nb_planes; i++)
321 dst->linesize[i] = LockedRect.Pitch;
323 av_image_fill_pointers(dst->data, dst->format, surfaceDesc.Height,
324 (uint8_t*)LockedRect.pBits, dst->linesize);
326 if (dst->format == AV_PIX_FMT_PAL8)
327 dst->data[1] = (uint8_t*)map->palette_dummy;
331 IDirect3DSurface9_UnlockRect(surface);
335 static int dxva2_transfer_data_to(AVHWFramesContext *ctx, AVFrame *dst,
341 if (src->format != ctx->sw_format)
342 return AVERROR(ENOSYS);
344 map = av_frame_alloc();
346 return AVERROR(ENOMEM);
347 map->format = dst->format;
349 ret = dxva2_map_frame(ctx, map, dst, AV_HWFRAME_MAP_WRITE | AV_HWFRAME_MAP_OVERWRITE);
353 av_image_copy(map->data, map->linesize, src->data, src->linesize,
354 ctx->sw_format, src->width, src->height);
361 static int dxva2_transfer_data_from(AVHWFramesContext *ctx, AVFrame *dst,
365 ptrdiff_t src_linesize[4], dst_linesize[4];
368 if (dst->format != ctx->sw_format)
369 return AVERROR(ENOSYS);
371 map = av_frame_alloc();
373 return AVERROR(ENOMEM);
374 map->format = dst->format;
376 ret = dxva2_map_frame(ctx, map, src, AV_HWFRAME_MAP_READ);
380 for (i = 0; i < 4; i++) {
381 dst_linesize[i] = dst->linesize[i];
382 src_linesize[i] = map->linesize[i];
384 av_image_copy_uc_from(dst->data, dst_linesize, map->data, src_linesize,
385 ctx->sw_format, src->width, src->height);
391 static int dxva2_map_from(AVHWFramesContext *ctx,
392 AVFrame *dst, const AVFrame *src, int flags)
396 if (dst->format != AV_PIX_FMT_NONE && dst->format != ctx->sw_format)
397 return AVERROR(ENOSYS);
398 dst->format = ctx->sw_format;
400 err = dxva2_map_frame(ctx, dst, src, flags);
404 err = av_frame_copy_props(dst, src);
411 static void dxva2_device_free(AVHWDeviceContext *ctx)
413 AVDXVA2DeviceContext *hwctx = ctx->hwctx;
414 DXVA2DevicePriv *priv = ctx->user_opaque;
416 if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
417 IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);
420 IDirect3DDeviceManager9_Release(hwctx->devmgr);
422 if (priv->d3d9device)
423 IDirect3DDevice9_Release(priv->d3d9device);
426 IDirect3D9_Release(priv->d3d9);
429 dlclose(priv->d3dlib);
432 dlclose(priv->dxva2lib);
434 av_freep(&ctx->user_opaque);
437 static int dxva2_device_create9(AVHWDeviceContext *ctx, UINT adapter)
439 DXVA2DevicePriv *priv = ctx->user_opaque;
440 D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
441 D3DDISPLAYMODE d3ddm;
443 pDirect3DCreate9 *createD3D = (pDirect3DCreate9 *)dlsym(priv->d3dlib, "Direct3DCreate9");
445 av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
446 return AVERROR_UNKNOWN;
449 priv->d3d9 = createD3D(D3D_SDK_VERSION);
451 av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
452 return AVERROR_UNKNOWN;
455 IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
457 d3dpp.BackBufferFormat = d3ddm.Format;
459 hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
461 &d3dpp, &priv->d3d9device);
463 av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
464 return AVERROR_UNKNOWN;
470 static int dxva2_device_create9ex(AVHWDeviceContext *ctx, UINT adapter)
472 DXVA2DevicePriv *priv = ctx->user_opaque;
473 D3DPRESENT_PARAMETERS d3dpp = dxva2_present_params;
474 D3DDISPLAYMODEEX modeex = {0};
475 IDirect3D9Ex *d3d9ex = NULL;
476 IDirect3DDevice9Ex *exdev = NULL;
478 pDirect3DCreate9Ex *createD3DEx = (pDirect3DCreate9Ex *)dlsym(priv->d3dlib, "Direct3DCreate9Ex");
480 return AVERROR(ENOSYS);
482 hr = createD3DEx(D3D_SDK_VERSION, &d3d9ex);
484 return AVERROR_UNKNOWN;
486 IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
488 d3dpp.BackBufferFormat = modeex.Format;
490 hr = IDirect3D9Ex_CreateDeviceEx(d3d9ex, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
492 &d3dpp, NULL, &exdev);
494 IDirect3D9Ex_Release(d3d9ex);
495 return AVERROR_UNKNOWN;
498 av_log(ctx, AV_LOG_VERBOSE, "Using D3D9Ex device.\n");
499 priv->d3d9 = (IDirect3D9 *)d3d9ex;
500 priv->d3d9device = (IDirect3DDevice9 *)exdev;
504 static int dxva2_device_create(AVHWDeviceContext *ctx, const char *device,
505 AVDictionary *opts, int flags)
507 AVDXVA2DeviceContext *hwctx = ctx->hwctx;
508 DXVA2DevicePriv *priv;
509 pCreateDeviceManager9 *createDeviceManager = NULL;
510 unsigned resetToken = 0;
511 UINT adapter = D3DADAPTER_DEFAULT;
516 adapter = atoi(device);
518 priv = av_mallocz(sizeof(*priv));
520 return AVERROR(ENOMEM);
522 ctx->user_opaque = priv;
523 ctx->free = dxva2_device_free;
525 priv->device_handle = INVALID_HANDLE_VALUE;
527 priv->d3dlib = dlopen("d3d9.dll", 0);
529 av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
530 return AVERROR_UNKNOWN;
532 priv->dxva2lib = dlopen("dxva2.dll", 0);
533 if (!priv->dxva2lib) {
534 av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
535 return AVERROR_UNKNOWN;
538 createDeviceManager = (pCreateDeviceManager9 *)dlsym(priv->dxva2lib,
539 "DXVA2CreateDirect3DDeviceManager9");
540 if (!createDeviceManager) {
541 av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
542 return AVERROR_UNKNOWN;
545 if (dxva2_device_create9ex(ctx, adapter) < 0) {
546 // Retry with "classic" d3d9
547 err = dxva2_device_create9(ctx, adapter);
552 hr = createDeviceManager(&resetToken, &hwctx->devmgr);
554 av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
555 return AVERROR_UNKNOWN;
558 hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
560 av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
561 return AVERROR_UNKNOWN;
564 hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
566 av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
567 return AVERROR_UNKNOWN;
573 const HWContextType ff_hwcontext_type_dxva2 = {
574 .type = AV_HWDEVICE_TYPE_DXVA2,
577 .device_hwctx_size = sizeof(AVDXVA2DeviceContext),
578 .frames_hwctx_size = sizeof(AVDXVA2FramesContext),
579 .frames_priv_size = sizeof(DXVA2FramesContext),
581 .device_create = dxva2_device_create,
582 .frames_init = dxva2_frames_init,
583 .frames_uninit = dxva2_frames_uninit,
584 .frames_get_buffer = dxva2_get_buffer,
585 .transfer_get_formats = dxva2_transfer_get_formats,
586 .transfer_data_to = dxva2_transfer_data_to,
587 .transfer_data_from = dxva2_transfer_data_from,
588 .map_from = dxva2_map_from,
590 .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },