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path: root/ffmpeg_dxva2.c (plain)
blob: 1a391f82f3ef019989848308f3a42b153e46d4c2
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#include "libavutil/hwcontext.h"
44#include "libavutil/hwcontext_dxva2.h"
45
46/* define all the GUIDs used directly here,
47 to avoid problems with inconsistent dxva2api.h versions in mingw-w64 and different MSVC version */
48#include <initguid.h>
49DEFINE_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551,0xd5e7,0x11d9,0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
50
51DEFINE_GUID(DXVA2_ModeMPEG2_VLD, 0xee27417f, 0x5e28,0x4e65,0xbe,0xea,0x1d,0x26,0xb5,0x08,0xad,0xc9);
52DEFINE_GUID(DXVA2_ModeMPEG2and1_VLD, 0x86695f12, 0x340e,0x4f04,0x9f,0xd3,0x92,0x53,0xdd,0x32,0x74,0x60);
53DEFINE_GUID(DXVA2_ModeH264_E, 0x1b81be68, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
54DEFINE_GUID(DXVA2_ModeH264_F, 0x1b81be69, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
55DEFINE_GUID(DXVADDI_Intel_ModeH264_E, 0x604F8E68, 0x4951,0x4C54,0x88,0xFE,0xAB,0xD2,0x5C,0x15,0xB3,0xD6);
56DEFINE_GUID(DXVA2_ModeVC1_D, 0x1b81beA3, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
57DEFINE_GUID(DXVA2_ModeVC1_D2010, 0x1b81beA4, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
58DEFINE_GUID(DXVA2_ModeHEVC_VLD_Main, 0x5b11d51b, 0x2f4c,0x4452,0xbc,0xc3,0x09,0xf2,0xa1,0x16,0x0c,0xc0);
59DEFINE_GUID(DXVA2_ModeHEVC_VLD_Main10,0x107af0e0, 0xef1a,0x4d19,0xab,0xa8,0x67,0xa1,0x63,0x07,0x3d,0x13);
60DEFINE_GUID(DXVA2_ModeVP9_VLD_Profile0, 0x463707f8, 0xa1d0,0x4585,0x87,0x6d,0x83,0xaa,0x6d,0x60,0xb8,0x9e);
61DEFINE_GUID(DXVA2_NoEncrypt, 0x1b81beD0, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
62DEFINE_GUID(GUID_NULL, 0x00000000, 0x0000,0x0000,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00);
63
64typedef struct dxva2_mode {
65 const GUID *guid;
66 enum AVCodecID codec;
67} dxva2_mode;
68
69static const dxva2_mode dxva2_modes[] = {
70 /* MPEG-2 */
71 { &DXVA2_ModeMPEG2_VLD, AV_CODEC_ID_MPEG2VIDEO },
72 { &DXVA2_ModeMPEG2and1_VLD, AV_CODEC_ID_MPEG2VIDEO },
73
74 /* H.264 */
75 { &DXVA2_ModeH264_F, AV_CODEC_ID_H264 },
76 { &DXVA2_ModeH264_E, AV_CODEC_ID_H264 },
77 /* Intel specific H.264 mode */
78 { &DXVADDI_Intel_ModeH264_E, AV_CODEC_ID_H264 },
79
80 /* VC-1 / WMV3 */
81 { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_VC1 },
82 { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_WMV3 },
83 { &DXVA2_ModeVC1_D, AV_CODEC_ID_VC1 },
84 { &DXVA2_ModeVC1_D, AV_CODEC_ID_WMV3 },
85
86 /* HEVC/H.265 */
87 { &DXVA2_ModeHEVC_VLD_Main, AV_CODEC_ID_HEVC },
88 { &DXVA2_ModeHEVC_VLD_Main10,AV_CODEC_ID_HEVC },
89
90 /* VP8/9 */
91 { &DXVA2_ModeVP9_VLD_Profile0, AV_CODEC_ID_VP9 },
92
93 { NULL, 0 },
94};
95
96typedef struct DXVA2Context {
97 IDirectXVideoDecoder *decoder;
98
99 GUID decoder_guid;
100 DXVA2_ConfigPictureDecode decoder_config;
101 IDirectXVideoDecoderService *decoder_service;
102
103 AVFrame *tmp_frame;
104
105 AVBufferRef *hw_device_ctx;
106 AVBufferRef *hw_frames_ctx;
107} DXVA2Context;
108
109static void dxva2_uninit(AVCodecContext *s)
110{
111 InputStream *ist = s->opaque;
112 DXVA2Context *ctx = ist->hwaccel_ctx;
113
114 ist->hwaccel_uninit = NULL;
115 ist->hwaccel_get_buffer = NULL;
116 ist->hwaccel_retrieve_data = NULL;
117
118 if (ctx->decoder_service)
119 IDirectXVideoDecoderService_Release(ctx->decoder_service);
120
121 av_buffer_unref(&ctx->hw_frames_ctx);
122 av_buffer_unref(&ctx->hw_device_ctx);
123
124 av_frame_free(&ctx->tmp_frame);
125
126 av_freep(&ist->hwaccel_ctx);
127 av_freep(&s->hwaccel_context);
128}
129
130static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
131{
132 InputStream *ist = s->opaque;
133 DXVA2Context *ctx = ist->hwaccel_ctx;
134
135 return av_hwframe_get_buffer(ctx->hw_frames_ctx, frame, 0);
136}
137
138static int dxva2_retrieve_data(AVCodecContext *s, AVFrame *frame)
139{
140 InputStream *ist = s->opaque;
141 DXVA2Context *ctx = ist->hwaccel_ctx;
142 int ret;
143
144 ret = av_hwframe_transfer_data(ctx->tmp_frame, frame, 0);
145 if (ret < 0)
146 return ret;
147
148 ret = av_frame_copy_props(ctx->tmp_frame, frame);
149 if (ret < 0) {
150 av_frame_unref(ctx->tmp_frame);
151 return ret;
152 }
153
154 av_frame_unref(frame);
155 av_frame_move_ref(frame, ctx->tmp_frame);
156
157 return 0;
158}
159
160static int dxva2_alloc(AVCodecContext *s)
161{
162 InputStream *ist = s->opaque;
163 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
164 DXVA2Context *ctx;
165 HANDLE device_handle;
166 HRESULT hr;
167
168 AVHWDeviceContext *device_ctx;
169 AVDXVA2DeviceContext *device_hwctx;
170 int ret;
171
172 ctx = av_mallocz(sizeof(*ctx));
173 if (!ctx)
174 return AVERROR(ENOMEM);
175
176 ist->hwaccel_ctx = ctx;
177 ist->hwaccel_uninit = dxva2_uninit;
178 ist->hwaccel_get_buffer = dxva2_get_buffer;
179 ist->hwaccel_retrieve_data = dxva2_retrieve_data;
180
181 ret = av_hwdevice_ctx_create(&ctx->hw_device_ctx, AV_HWDEVICE_TYPE_DXVA2,
182 ist->hwaccel_device, NULL, 0);
183 if (ret < 0)
184 goto fail;
185 device_ctx = (AVHWDeviceContext*)ctx->hw_device_ctx->data;
186 device_hwctx = device_ctx->hwctx;
187
188 hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr,
189 &device_handle);
190 if (FAILED(hr)) {
191 av_log(NULL, loglevel, "Failed to open a device handle\n");
192 goto fail;
193 }
194
195 hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr, device_handle,
196 &IID_IDirectXVideoDecoderService,
197 (void **)&ctx->decoder_service);
198 IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, device_handle);
199 if (FAILED(hr)) {
200 av_log(NULL, loglevel, "Failed to create IDirectXVideoDecoderService\n");
201 goto fail;
202 }
203
204 ctx->tmp_frame = av_frame_alloc();
205 if (!ctx->tmp_frame)
206 goto fail;
207
208 s->hwaccel_context = av_mallocz(sizeof(struct dxva_context));
209 if (!s->hwaccel_context)
210 goto fail;
211
212 return 0;
213fail:
214 dxva2_uninit(s);
215 return AVERROR(EINVAL);
216}
217
218static int dxva2_get_decoder_configuration(AVCodecContext *s, const GUID *device_guid,
219 const DXVA2_VideoDesc *desc,
220 DXVA2_ConfigPictureDecode *config)
221{
222 InputStream *ist = s->opaque;
223 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
224 DXVA2Context *ctx = ist->hwaccel_ctx;
225 unsigned cfg_count = 0, best_score = 0;
226 DXVA2_ConfigPictureDecode *cfg_list = NULL;
227 DXVA2_ConfigPictureDecode best_cfg = {{0}};
228 HRESULT hr;
229 int i;
230
231 hr = IDirectXVideoDecoderService_GetDecoderConfigurations(ctx->decoder_service, device_guid, desc, NULL, &cfg_count, &cfg_list);
232 if (FAILED(hr)) {
233 av_log(NULL, loglevel, "Unable to retrieve decoder configurations\n");
234 return AVERROR(EINVAL);
235 }
236
237 for (i = 0; i < cfg_count; i++) {
238 DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
239
240 unsigned score;
241 if (cfg->ConfigBitstreamRaw == 1)
242 score = 1;
243 else if (s->codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
244 score = 2;
245 else
246 continue;
247 if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA2_NoEncrypt))
248 score += 16;
249 if (score > best_score) {
250 best_score = score;
251 best_cfg = *cfg;
252 }
253 }
254 CoTaskMemFree(cfg_list);
255
256 if (!best_score) {
257 av_log(NULL, loglevel, "No valid decoder configuration available\n");
258 return AVERROR(EINVAL);
259 }
260
261 *config = best_cfg;
262 return 0;
263}
264
265static int dxva2_create_decoder(AVCodecContext *s)
266{
267 InputStream *ist = s->opaque;
268 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
269 DXVA2Context *ctx = ist->hwaccel_ctx;
270 struct dxva_context *dxva_ctx = s->hwaccel_context;
271 GUID *guid_list = NULL;
272 unsigned guid_count = 0, i, j;
273 GUID device_guid = GUID_NULL;
274 const D3DFORMAT surface_format = (s->sw_pix_fmt == AV_PIX_FMT_YUV420P10) ? MKTAG('P','0','1','0') : MKTAG('N','V','1','2');
275 D3DFORMAT target_format = 0;
276 DXVA2_VideoDesc desc = { 0 };
277 DXVA2_ConfigPictureDecode config;
278 HRESULT hr;
279 int surface_alignment, num_surfaces;
280 int ret;
281
282 AVDXVA2FramesContext *frames_hwctx;
283 AVHWFramesContext *frames_ctx;
284
285 hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list);
286 if (FAILED(hr)) {
287 av_log(NULL, loglevel, "Failed to retrieve decoder device GUIDs\n");
288 goto fail;
289 }
290
291 for (i = 0; dxva2_modes[i].guid; i++) {
292 D3DFORMAT *target_list = NULL;
293 unsigned target_count = 0;
294 const dxva2_mode *mode = &dxva2_modes[i];
295 if (mode->codec != s->codec_id)
296 continue;
297
298 for (j = 0; j < guid_count; j++) {
299 if (IsEqualGUID(mode->guid, &guid_list[j]))
300 break;
301 }
302 if (j == guid_count)
303 continue;
304
305 hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list);
306 if (FAILED(hr)) {
307 continue;
308 }
309 for (j = 0; j < target_count; j++) {
310 const D3DFORMAT format = target_list[j];
311 if (format == surface_format) {
312 target_format = format;
313 break;
314 }
315 }
316 CoTaskMemFree(target_list);
317 if (target_format) {
318 device_guid = *mode->guid;
319 break;
320 }
321 }
322 CoTaskMemFree(guid_list);
323
324 if (IsEqualGUID(&device_guid, &GUID_NULL)) {
325 av_log(NULL, loglevel, "No decoder device for codec found\n");
326 goto fail;
327 }
328
329 desc.SampleWidth = s->coded_width;
330 desc.SampleHeight = s->coded_height;
331 desc.Format = target_format;
332
333 ret = dxva2_get_decoder_configuration(s, &device_guid, &desc, &config);
334 if (ret < 0) {
335 goto fail;
336 }
337
338 /* decoding MPEG-2 requires additional alignment on some Intel GPUs,
339 but it causes issues for H.264 on certain AMD GPUs..... */
340 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO)
341 surface_alignment = 32;
342 /* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
343 all coding features have enough room to work with */
344 else if (s->codec_id == AV_CODEC_ID_HEVC)
345 surface_alignment = 128;
346 else
347 surface_alignment = 16;
348
349 /* 4 base work surfaces */
350 num_surfaces = 4;
351
352 /* add surfaces based on number of possible refs */
353 if (s->codec_id == AV_CODEC_ID_H264 || s->codec_id == AV_CODEC_ID_HEVC)
354 num_surfaces += 16;
355 else if (s->codec_id == AV_CODEC_ID_VP9)
356 num_surfaces += 8;
357 else
358 num_surfaces += 2;
359
360 /* add extra surfaces for frame threading */
361 if (s->active_thread_type & FF_THREAD_FRAME)
362 num_surfaces += s->thread_count;
363
364 ctx->hw_frames_ctx = av_hwframe_ctx_alloc(ctx->hw_device_ctx);
365 if (!ctx->hw_frames_ctx)
366 goto fail;
367 frames_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
368 frames_hwctx = frames_ctx->hwctx;
369
370 frames_ctx->format = AV_PIX_FMT_DXVA2_VLD;
371 frames_ctx->sw_format = (target_format == MKTAG('P','0','1','0') ? AV_PIX_FMT_P010 : AV_PIX_FMT_NV12);
372 frames_ctx->width = FFALIGN(s->coded_width, surface_alignment);
373 frames_ctx->height = FFALIGN(s->coded_height, surface_alignment);
374 frames_ctx->initial_pool_size = num_surfaces;
375
376 frames_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
377
378 ret = av_hwframe_ctx_init(ctx->hw_frames_ctx);
379 if (ret < 0) {
380 av_log(NULL, loglevel, "Failed to initialize the HW frames context\n");
381 goto fail;
382 }
383
384 hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid,
385 &desc, &config, frames_hwctx->surfaces,
386 frames_hwctx->nb_surfaces, &frames_hwctx->decoder_to_release);
387 if (FAILED(hr)) {
388 av_log(NULL, loglevel, "Failed to create DXVA2 video decoder\n");
389 goto fail;
390 }
391
392 ctx->decoder_guid = device_guid;
393 ctx->decoder_config = config;
394
395 dxva_ctx->cfg = &ctx->decoder_config;
396 dxva_ctx->decoder = frames_hwctx->decoder_to_release;
397 dxva_ctx->surface = frames_hwctx->surfaces;
398 dxva_ctx->surface_count = frames_hwctx->nb_surfaces;
399
400 if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E))
401 dxva_ctx->workaround |= FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO;
402
403 return 0;
404fail:
405 av_buffer_unref(&ctx->hw_frames_ctx);
406 return AVERROR(EINVAL);
407}
408
409int dxva2_init(AVCodecContext *s)
410{
411 InputStream *ist = s->opaque;
412 int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
413 DXVA2Context *ctx;
414 int ret;
415
416 if (!ist->hwaccel_ctx) {
417 ret = dxva2_alloc(s);
418 if (ret < 0)
419 return ret;
420 }
421 ctx = ist->hwaccel_ctx;
422
423 if (s->codec_id == AV_CODEC_ID_H264 &&
424 (s->profile & ~FF_PROFILE_H264_CONSTRAINED) > FF_PROFILE_H264_HIGH) {
425 av_log(NULL, loglevel, "Unsupported H.264 profile for DXVA2 HWAccel: %d\n", s->profile);
426 return AVERROR(EINVAL);
427 }
428
429 if (s->codec_id == AV_CODEC_ID_HEVC &&
430 s->profile != FF_PROFILE_HEVC_MAIN && s->profile != FF_PROFILE_HEVC_MAIN_10) {
431 av_log(NULL, loglevel, "Unsupported HEVC profile for DXVA2 HWAccel: %d\n", s->profile);
432 return AVERROR(EINVAL);
433 }
434
435 av_buffer_unref(&ctx->hw_frames_ctx);
436
437 ret = dxva2_create_decoder(s);
438 if (ret < 0) {
439 av_log(NULL, loglevel, "Error creating the DXVA2 decoder\n");
440 return ret;
441 }
442
443 return 0;
444}
445
generated by cgit at 2024-05-02 02:09:59 (GMT)