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
24 #define _WIN32_WINNT 0x0600
25 #define DXVA2API_USE_BITFIELDS
35 #include "libavcodec/dxva2.h"
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"
43 #include "libavutil/hwcontext.h"
44 #include "libavutil/hwcontext_dxva2.h"
46 /* define all the GUIDs used directly here,
47 to avoid problems with inconsistent dxva2api.h versions in mingw-w64 and different MSVC version */
49 DEFINE_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551,0xd5e7,0x11d9,0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
51 DEFINE_GUID(DXVA2_ModeMPEG2_VLD, 0xee27417f, 0x5e28,0x4e65,0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9);
52 DEFINE_GUID(DXVA2_ModeMPEG2and1_VLD, 0x86695f12, 0x340e,0x4f04,0x9f,0xd3,0x92,0x53,0xdd,0x32,0x74,0x60);
53 DEFINE_GUID(DXVA2_ModeH264_E, 0x1b81be68, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
54 DEFINE_GUID(DXVA2_ModeH264_F, 0x1b81be69, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
55 DEFINE_GUID(DXVADDI_Intel_ModeH264_E, 0x604F8E68, 0x4951,0x4C54,0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6);
56 DEFINE_GUID(DXVA2_ModeVC1_D, 0x1b81beA3, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
57 DEFINE_GUID(DXVA2_ModeVC1_D2010, 0x1b81beA4, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
58 DEFINE_GUID(DXVA2_ModeHEVC_VLD_Main, 0x5b11d51b, 0x2f4c,0x4452,0xbc,0xc3,0x09,0xf2,0xa1,0x16,0x0c,0xc0);
59 DEFINE_GUID(DXVA2_ModeHEVC_VLD_Main10,0x107af0e0, 0xef1a,0x4d19,0xab,0xa8,0x67,0xa1,0x63,0x07,0x3d,0x13);
60 DEFINE_GUID(DXVA2_ModeVP9_VLD_Profile0, 0x463707f8, 0xa1d0,0x4585,0x87,0x6d,0x83,0xaa,0x6d,0x60,0xb8,0x9e);
61 DEFINE_GUID(DXVA2_NoEncrypt, 0x1b81beD0, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
62 DEFINE_GUID(GUID_NULL, 0x00000000, 0x0000,0x0000,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00);
64 typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
65 typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);
67 typedef struct dxva2_mode {
72 static const dxva2_mode dxva2_modes[] = {
74 { &DXVA2_ModeMPEG2_VLD, AV_CODEC_ID_MPEG2VIDEO },
75 { &DXVA2_ModeMPEG2and1_VLD, AV_CODEC_ID_MPEG2VIDEO },
78 { &DXVA2_ModeH264_F, AV_CODEC_ID_H264 },
79 { &DXVA2_ModeH264_E, AV_CODEC_ID_H264 },
80 /* Intel specific H.264 mode */
81 { &DXVADDI_Intel_ModeH264_E, AV_CODEC_ID_H264 },
84 { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_VC1 },
85 { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_WMV3 },
86 { &DXVA2_ModeVC1_D, AV_CODEC_ID_VC1 },
87 { &DXVA2_ModeVC1_D, AV_CODEC_ID_WMV3 },
90 { &DXVA2_ModeHEVC_VLD_Main, AV_CODEC_ID_HEVC },
91 { &DXVA2_ModeHEVC_VLD_Main10,AV_CODEC_ID_HEVC },
94 { &DXVA2_ModeVP9_VLD_Profile0, AV_CODEC_ID_VP9 },
99 typedef struct DXVA2DevicePriv {
106 IDirect3DDevice9 *d3d9device;
109 typedef struct DXVA2Context {
110 IDirectXVideoDecoder *decoder;
113 DXVA2_ConfigPictureDecode decoder_config;
114 IDirectXVideoDecoderService *decoder_service;
118 AVBufferRef *hw_device_ctx;
119 AVBufferRef *hw_frames_ctx;
122 static void dxva2_device_uninit(AVHWDeviceContext *ctx)
124 AVDXVA2DeviceContext *hwctx = ctx->hwctx;
125 DXVA2DevicePriv *priv = ctx->user_opaque;
127 if (hwctx->devmgr && priv->deviceHandle != INVALID_HANDLE_VALUE)
128 IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->deviceHandle);
131 IDirect3DDeviceManager9_Release(hwctx->devmgr);
133 if (priv->d3d9device)
134 IDirect3DDevice9_Release(priv->d3d9device);
137 IDirect3D9_Release(priv->d3d9);
140 FreeLibrary(priv->d3dlib);
143 FreeLibrary(priv->dxva2lib);
145 av_freep(&ctx->user_opaque);
148 static void dxva2_uninit(AVCodecContext *s)
150 InputStream *ist = s->opaque;
151 DXVA2Context *ctx = ist->hwaccel_ctx;
153 ist->hwaccel_uninit = NULL;
154 ist->hwaccel_get_buffer = NULL;
155 ist->hwaccel_retrieve_data = NULL;
157 if (ctx->decoder_service)
158 IDirectXVideoDecoderService_Release(ctx->decoder_service);
160 av_buffer_unref(&ctx->hw_frames_ctx);
161 av_buffer_unref(&ctx->hw_device_ctx);
163 av_frame_free(&ctx->tmp_frame);
165 av_freep(&ist->hwaccel_ctx);
166 av_freep(&s->hwaccel_context);
169 static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
171 InputStream *ist = s->opaque;
172 DXVA2Context *ctx = ist->hwaccel_ctx;
174 return av_hwframe_get_buffer(ctx->hw_frames_ctx, frame, 0);
177 static int dxva2_retrieve_data(AVCodecContext *s, AVFrame *frame)
179 InputStream *ist = s->opaque;
180 DXVA2Context *ctx = ist->hwaccel_ctx;
183 ret = av_hwframe_transfer_data(ctx->tmp_frame, frame, 0);
187 ret = av_frame_copy_props(ctx->tmp_frame, frame);
189 av_frame_unref(ctx->tmp_frame);
193 av_frame_unref(frame);
194 av_frame_move_ref(frame, ctx->tmp_frame);
199 static int dxva2_alloc(AVCodecContext *s)
201 InputStream *ist = s->opaque;
202 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
204 pDirect3DCreate9 *createD3D = NULL;
205 pCreateDeviceManager9 *createDeviceManager = NULL;
207 D3DPRESENT_PARAMETERS d3dpp = {0};
208 D3DDISPLAYMODE d3ddm;
209 unsigned resetToken = 0;
210 UINT adapter = D3DADAPTER_DEFAULT;
212 AVHWDeviceContext *device_ctx;
213 AVDXVA2DeviceContext *device_hwctx;
214 DXVA2DevicePriv *device_priv;
217 ctx = av_mallocz(sizeof(*ctx));
219 return AVERROR(ENOMEM);
221 ist->hwaccel_ctx = ctx;
222 ist->hwaccel_uninit = dxva2_uninit;
223 ist->hwaccel_get_buffer = dxva2_get_buffer;
224 ist->hwaccel_retrieve_data = dxva2_retrieve_data;
226 ctx->hw_device_ctx = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_DXVA2);
227 if (!ctx->hw_device_ctx)
230 device_ctx = (AVHWDeviceContext*)ctx->hw_device_ctx->data;
231 device_hwctx = device_ctx->hwctx;
233 device_priv = av_mallocz(sizeof(*device_priv));
237 device_ctx->user_opaque = device_priv;
238 device_ctx->free = dxva2_device_uninit;
240 device_priv->deviceHandle = INVALID_HANDLE_VALUE;
242 device_priv->d3dlib = LoadLibrary("d3d9.dll");
243 if (!device_priv->d3dlib) {
244 av_log(NULL, loglevel, "Failed to load D3D9 library\n");
247 device_priv->dxva2lib = LoadLibrary("dxva2.dll");
248 if (!device_priv->dxva2lib) {
249 av_log(NULL, loglevel, "Failed to load DXVA2 library\n");
253 createD3D = (pDirect3DCreate9 *)GetProcAddress(device_priv->d3dlib, "Direct3DCreate9");
255 av_log(NULL, loglevel, "Failed to locate Direct3DCreate9\n");
258 createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(device_priv->dxva2lib, "DXVA2CreateDirect3DDeviceManager9");
259 if (!createDeviceManager) {
260 av_log(NULL, loglevel, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
264 device_priv->d3d9 = createD3D(D3D_SDK_VERSION);
265 if (!device_priv->d3d9) {
266 av_log(NULL, loglevel, "Failed to create IDirect3D object\n");
270 if (ist->hwaccel_device) {
271 adapter = atoi(ist->hwaccel_device);
272 av_log(NULL, AV_LOG_INFO, "Using HWAccel device %d\n", adapter);
275 IDirect3D9_GetAdapterDisplayMode(device_priv->d3d9, adapter, &d3ddm);
276 d3dpp.Windowed = TRUE;
277 d3dpp.BackBufferWidth = 640;
278 d3dpp.BackBufferHeight = 480;
279 d3dpp.BackBufferCount = 0;
280 d3dpp.BackBufferFormat = d3ddm.Format;
281 d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
282 d3dpp.Flags = D3DPRESENTFLAG_VIDEO;
284 hr = IDirect3D9_CreateDevice(device_priv->d3d9, adapter, D3DDEVTYPE_HAL, GetDesktopWindow(),
285 D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
286 &d3dpp, &device_priv->d3d9device);
288 av_log(NULL, loglevel, "Failed to create Direct3D device\n");
292 hr = createDeviceManager(&resetToken, &device_hwctx->devmgr);
294 av_log(NULL, loglevel, "Failed to create Direct3D device manager\n");
298 hr = IDirect3DDeviceManager9_ResetDevice(device_hwctx->devmgr, device_priv->d3d9device, resetToken);
300 av_log(NULL, loglevel, "Failed to bind Direct3D device to device manager\n");
304 hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &device_priv->deviceHandle);
306 av_log(NULL, loglevel, "Failed to open device handle\n");
310 hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr, device_priv->deviceHandle, &IID_IDirectXVideoDecoderService, (void **)&ctx->decoder_service);
312 av_log(NULL, loglevel, "Failed to create IDirectXVideoDecoderService\n");
316 ret = av_hwdevice_ctx_init(ctx->hw_device_ctx);
318 av_log(NULL, loglevel, "Failed to initialize the HW device context\n");
322 ctx->tmp_frame = av_frame_alloc();
326 s->hwaccel_context = av_mallocz(sizeof(struct dxva_context));
327 if (!s->hwaccel_context)
333 return AVERROR(EINVAL);
336 static int dxva2_get_decoder_configuration(AVCodecContext *s, const GUID *device_guid,
337 const DXVA2_VideoDesc *desc,
338 DXVA2_ConfigPictureDecode *config)
340 InputStream *ist = s->opaque;
341 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
342 DXVA2Context *ctx = ist->hwaccel_ctx;
343 unsigned cfg_count = 0, best_score = 0;
344 DXVA2_ConfigPictureDecode *cfg_list = NULL;
345 DXVA2_ConfigPictureDecode best_cfg = {{0}};
349 hr = IDirectXVideoDecoderService_GetDecoderConfigurations(ctx->decoder_service, device_guid, desc, NULL, &cfg_count, &cfg_list);
351 av_log(NULL, loglevel, "Unable to retrieve decoder configurations\n");
352 return AVERROR(EINVAL);
355 for (i = 0; i < cfg_count; i++) {
356 DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
359 if (cfg->ConfigBitstreamRaw == 1)
361 else if (s->codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
365 if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA2_NoEncrypt))
367 if (score > best_score) {
372 CoTaskMemFree(cfg_list);
375 av_log(NULL, loglevel, "No valid decoder configuration available\n");
376 return AVERROR(EINVAL);
383 static int dxva2_create_decoder(AVCodecContext *s)
385 InputStream *ist = s->opaque;
386 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
387 DXVA2Context *ctx = ist->hwaccel_ctx;
388 struct dxva_context *dxva_ctx = s->hwaccel_context;
389 GUID *guid_list = NULL;
390 unsigned guid_count = 0, i, j;
391 GUID device_guid = GUID_NULL;
392 const D3DFORMAT surface_format = (s->sw_pix_fmt == AV_PIX_FMT_YUV420P10) ? MKTAG('P','0','1','0') : MKTAG('N','V','1','2');
393 D3DFORMAT target_format = 0;
394 DXVA2_VideoDesc desc = { 0 };
395 DXVA2_ConfigPictureDecode config;
397 int surface_alignment, num_surfaces;
400 AVDXVA2FramesContext *frames_hwctx;
401 AVHWFramesContext *frames_ctx;
403 hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list);
405 av_log(NULL, loglevel, "Failed to retrieve decoder device GUIDs\n");
409 for (i = 0; dxva2_modes[i].guid; i++) {
410 D3DFORMAT *target_list = NULL;
411 unsigned target_count = 0;
412 const dxva2_mode *mode = &dxva2_modes[i];
413 if (mode->codec != s->codec_id)
416 for (j = 0; j < guid_count; j++) {
417 if (IsEqualGUID(mode->guid, &guid_list[j]))
423 hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list);
427 for (j = 0; j < target_count; j++) {
428 const D3DFORMAT format = target_list[j];
429 if (format == surface_format) {
430 target_format = format;
434 CoTaskMemFree(target_list);
436 device_guid = *mode->guid;
440 CoTaskMemFree(guid_list);
442 if (IsEqualGUID(&device_guid, &GUID_NULL)) {
443 av_log(NULL, loglevel, "No decoder device for codec found\n");
447 desc.SampleWidth = s->coded_width;
448 desc.SampleHeight = s->coded_height;
449 desc.Format = target_format;
451 ret = dxva2_get_decoder_configuration(s, &device_guid, &desc, &config);
456 /* decoding MPEG-2 requires additional alignment on some Intel GPUs,
457 but it causes issues for H.264 on certain AMD GPUs..... */
458 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO)
459 surface_alignment = 32;
460 /* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
461 all coding features have enough room to work with */
462 else if (s->codec_id == AV_CODEC_ID_HEVC)
463 surface_alignment = 128;
465 surface_alignment = 16;
467 /* 4 base work surfaces */
470 /* add surfaces based on number of possible refs */
471 if (s->codec_id == AV_CODEC_ID_H264 || s->codec_id == AV_CODEC_ID_HEVC)
473 else if (s->codec_id == AV_CODEC_ID_VP9)
478 /* add extra surfaces for frame threading */
479 if (s->active_thread_type & FF_THREAD_FRAME)
480 num_surfaces += s->thread_count;
482 ctx->hw_frames_ctx = av_hwframe_ctx_alloc(ctx->hw_device_ctx);
483 if (!ctx->hw_frames_ctx)
485 frames_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
486 frames_hwctx = frames_ctx->hwctx;
488 frames_ctx->format = AV_PIX_FMT_DXVA2_VLD;
489 frames_ctx->sw_format = (target_format == MKTAG('P','0','1','0') ? AV_PIX_FMT_P010 : AV_PIX_FMT_NV12);
490 frames_ctx->width = FFALIGN(s->coded_width, surface_alignment);
491 frames_ctx->height = FFALIGN(s->coded_height, surface_alignment);
492 frames_ctx->initial_pool_size = num_surfaces;
494 frames_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
496 ret = av_hwframe_ctx_init(ctx->hw_frames_ctx);
498 av_log(NULL, loglevel, "Failed to initialize the HW frames context\n");
502 hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid,
503 &desc, &config, frames_hwctx->surfaces,
504 frames_hwctx->nb_surfaces, &frames_hwctx->decoder_to_release);
506 av_log(NULL, loglevel, "Failed to create DXVA2 video decoder\n");
510 ctx->decoder_guid = device_guid;
511 ctx->decoder_config = config;
513 dxva_ctx->cfg = &ctx->decoder_config;
514 dxva_ctx->decoder = frames_hwctx->decoder_to_release;
515 dxva_ctx->surface = frames_hwctx->surfaces;
516 dxva_ctx->surface_count = frames_hwctx->nb_surfaces;
518 if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E))
519 dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
523 av_buffer_unref(&ctx->hw_frames_ctx);
524 return AVERROR(EINVAL);
527 int dxva2_init(AVCodecContext *s)
529 InputStream *ist = s->opaque;
530 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
534 if (!ist->hwaccel_ctx) {
535 ret = dxva2_alloc(s);
539 ctx = ist->hwaccel_ctx;
541 if (s->codec_id == AV_CODEC_ID_H264 &&
542 (s->profile & ~FF_PROFILE_H264_CONSTRAINED) > FF_PROFILE_H264_HIGH) {
543 av_log(NULL, loglevel, "Unsupported H.264 profile for DXVA2 HWAccel: %d\n", s->profile);
544 return AVERROR(EINVAL);
547 if (s->codec_id == AV_CODEC_ID_HEVC &&
548 s->profile != FF_PROFILE_HEVC_MAIN && s->profile != FF_PROFILE_HEVC_MAIN_10) {
549 av_log(NULL, loglevel, "Unsupported HEVC profile for DXVA2 HWAccel: %d\n", s->profile);
550 return AVERROR(EINVAL);
553 av_buffer_unref(&ctx->hw_frames_ctx);
555 ret = dxva2_create_decoder(s);
557 av_log(NULL, loglevel, "Error creating the DXVA2 decoder\n");