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ffmpeg_dxva2.c
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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"
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>
49 DEFINE_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551,0xd5e7,0x11d9,0xaf,0x55,0x00,0x05,0x4e,0x43,0xff,0x02);
50 
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);
63 
64 typedef struct dxva2_mode {
65  const GUID *guid;
67 } dxva2_mode;
68 
69 static 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 
96 typedef struct DXVA2Context {
97  IDirectXVideoDecoder *decoder;
98 
100  DXVA2_ConfigPictureDecode decoder_config;
101  IDirectXVideoDecoderService *decoder_service;
102 
104 
107 } DXVA2Context;
108 
110 {
111  InputStream *ist = s->opaque;
112  DXVA2Context *ctx = ist->hwaccel_ctx;
113 
114  ist->hwaccel_uninit = NULL;
115  ist->hwaccel_get_buffer = NULL;
117 
118  if (ctx->decoder_service)
119  IDirectXVideoDecoderService_Release(ctx->decoder_service);
120 
123 
124  av_frame_free(&ctx->tmp_frame);
125 
126  av_freep(&ist->hwaccel_ctx);
128 }
129 
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 
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) {
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 
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;
180 
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;
213 fail:
214  dxva2_uninit(s);
215  return AVERROR(EINVAL);
216 }
217 
218 static 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 
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..... */
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 */
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 */
362  num_surfaces += s->thread_count;
363 
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 
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))
402 
403  return 0;
404 fail:
406  return AVERROR(EINVAL);
407 }
408 
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 &&
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 &&
431  av_log(NULL, loglevel, "Unsupported HEVC profile for DXVA2 HWAccel: %d\n", s->profile);
432  return AVERROR(EINVAL);
433  }
434 
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 }
This struct aggregates all the (hardware/vendor-specific) "high-level" state, i.e.
Definition: hwcontext.h:54
#define NULL
Definition: coverity.c:32
const GUID * guid
Definition: ffmpeg_dxva2.c:65
const char * s
Definition: avisynth_c.h:768
void av_buffer_unref(AVBufferRef **buf)
Free a given reference and automatically free the buffer if there are no more references to it...
Definition: buffer.c:124
This structure describes decoded (raw) audio or video data.
Definition: frame.h:184
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1878
This struct is allocated as AVHWFramesContext.hwctx.
misc image utilities
static int dxva2_create_decoder(AVCodecContext *s)
Definition: ffmpeg_dxva2.c:265
const char * desc
Definition: nvenc.c:101
static FFServerConfig config
Definition: ffserver.c:202
An API-specific header for AV_HWDEVICE_TYPE_DXVA2.
static void dxva2_uninit(AVCodecContext *s)
Definition: ffmpeg_dxva2.c:109
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:222
enum AVPixelFormat format
The pixel format identifying the underlying HW surface type.
Definition: hwcontext.h:202
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
Definition: frame.c:517
LPDIRECT3DSURFACE9 * surface
The array of Direct3D surfaces used to create the decoder.
Definition: dxva2.h:76
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:252
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg.h:339
int profile
profile
Definition: avcodec.h:3181
const DXVA2_ConfigPictureDecode * cfg
DXVA2 configuration used to create the decoder.
Definition: dxva2.h:66
unsigned surface_count
The number of surface in the surface array.
Definition: dxva2.h:71
int dxva2_init(AVCodecContext *s)
Definition: ffmpeg_dxva2.c:409
#define AV_PIX_FMT_P010
Definition: pixfmt.h:384
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:145
void * hwaccel_context
Hardware accelerator context.
Definition: avcodec.h:3008
mode
Definition: f_perms.c:27
DWORD surface_type
The surface type (e.g.
#define FF_PROFILE_HEVC_MAIN
Definition: avcodec.h:3269
static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
Definition: ffmpeg_dxva2.c:130
static AVFrame * frame
void * hwctx
The format-specific data, allocated and freed by libavutil along with this context.
Definition: hwcontext.h:85
int av_hwdevice_ctx_create(AVBufferRef **pdevice_ref, enum AVHWDeviceType type, const char *device, AVDictionary *opts, int flags)
Open a device of the specified type and create an AVHWDeviceContext for it.
Definition: hwcontext.c:459
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:192
#define FF_PROFILE_HEVC_MAIN_10
Definition: avcodec.h:3270
#define FFALIGN(x, a)
Definition: macros.h:48
#define av_log(a,...)
static const dxva2_mode dxva2_modes[]
Definition: ffmpeg_dxva2.c:69
uint64_t workaround
A bit field configuring the workarounds needed for using the decoder.
Definition: dxva2.h:81
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:191
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
IDirectXVideoDecoder * decoder_to_release
Certain drivers require the decoder to be destroyed before the surfaces.
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: ffmpeg.h:338
#define AVERROR(e)
Definition: error.h:43
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
Definition: frame.c:158
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:3126
#define FF_PROFILE_H264_HIGH
Definition: avcodec.h:3224
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:90
simple assert() macros that are a bit more flexible than ISO C assert().
IDirect3DDeviceManager9 * devmgr
int av_hwframe_ctx_init(AVBufferRef *ref)
Finalize the context before use.
Definition: hwcontext.c:263
int av_hwframe_get_buffer(AVBufferRef *hwframe_ref, AVFrame *frame, int flags)
Allocate a new frame attached to the given AVHWFramesContext.
Definition: hwcontext.c:390
#define fail()
Definition: checkasm.h:83
reference-counted frame API
int av_hwframe_transfer_data(AVFrame *dst, const AVFrame *src, int flags)
Copy data to or from a hw surface.
Definition: hwcontext.c:364
int initial_pool_size
Initial size of the frame pool.
Definition: hwcontext.h:192
DXVA2_ConfigPictureDecode decoder_config
Definition: ffmpeg_dxva2.c:100
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:3118
PVOID HANDLE
#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO
Work around for Direct3D11 and old Intel GPUs with ClearVideo interface.
Definition: d3d11va.h:49
AVFormatContext * ctx
Definition: movenc.c:48
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg.h:340
AVFrame * tmp_frame
Definition: ffmpeg_dxva2.c:103
enum AVCodecID codec
Definition: ffmpeg_dxva2.c:66
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:196
static int dxva2_get_decoder_configuration(AVCodecContext *s, const GUID *device_guid, const DXVA2_VideoDesc *desc, DXVA2_ConfigPictureDecode *config)
Definition: ffmpeg_dxva2.c:218
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:3107
Public libavcodec DXVA2 header.
GUID decoder_guid
Definition: ffmpeg_dxva2.c:99
enum AVCodecID codec_id
Definition: avcodec.h:1693
main external API structure.
Definition: avcodec.h:1676
uint8_t * data
The data buffer.
Definition: buffer.h:89
void * hwctx
The format-specific data, allocated and freed automatically along with this context.
Definition: hwcontext.h:155
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:341
int coded_height
Definition: avcodec.h:1878
static const char * format
Definition: movenc.c:47
This struct describes a set or pool of "hardware" frames (i.e.
Definition: hwcontext.h:117
refcounted data buffer API
IDirectXVideoDecoder * decoder
Definition: ffmpeg_dxva2.c:97
HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer. ...
Definition: pixfmt.h:148
AVBufferRef * hw_device_ctx
Definition: ffmpeg_dxva2.c:105
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:493
DWORD HRESULT
static int flags
Definition: cpu.c:47
#define FAILED(hr)
Definition: windows2linux.h:48
A reference to a data buffer.
Definition: buffer.h:81
static int dxva2_alloc(AVCodecContext *s)
Definition: ffmpeg_dxva2.c:160
AVBufferRef * av_hwframe_ctx_alloc(AVBufferRef *device_ref_in)
Allocate an AVHWFramesContext tied to a given device context.
Definition: hwcontext.c:177
DEFINE_GUID(IID_IDirectXVideoDecoderService, 0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02)
IDirect3DSurface9 ** surfaces
The surface pool.
static int dxva2_retrieve_data(AVCodecContext *s, AVFrame *frame)
Definition: ffmpeg_dxva2.c:138
IDirectXVideoDecoderService * decoder_service
Definition: ffmpeg_dxva2.c:101
pixel format definitions
This struct is allocated as AVHWDeviceContext.hwctx.
void * hwaccel_ctx
Definition: ffmpeg.h:337
char * hwaccel_device
Definition: ffmpeg.h:332
AVBufferRef * hw_frames_ctx
Definition: ffmpeg_dxva2.c:106
#define av_freep(p)
IDirectXVideoDecoder * decoder
DXVA2 decoder object.
Definition: dxva2.h:61
#define FF_PROFILE_H264_CONSTRAINED
Definition: avcodec.h:3217
enum HWAccelID hwaccel_id
Definition: ffmpeg.h:331
#define MKTAG(a, b, c, d)
Definition: common.h:342
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:215
enum AVPixelFormat sw_pix_fmt
Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:3382
void * opaque
Private data of the user, can be used to carry app specific stuff.
Definition: avcodec.h:1733
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:589
This structure is used to provides the necessary configurations and data to the DXVA2 FFmpeg HWAccel ...
Definition: dxva2.h:57