Libav
avconv_dxva2.c
Go to the documentation of this file.
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 #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 "avconv.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_NoEncrypt, 0x1b81beD0, 0xa0c7,0x11d3,0xb9,0x84,0x00,0xc0,0x4f,0x2e,0x73,0xc5);
61 DEFINE_GUID(GUID_NULL, 0x00000000, 0x0000,0x0000,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00);
62 
63 typedef struct dxva2_mode {
64  const GUID *guid;
66 } dxva2_mode;
67 
68 static const dxva2_mode dxva2_modes[] = {
69  /* MPEG-2 */
70  { &DXVA2_ModeMPEG2_VLD, AV_CODEC_ID_MPEG2VIDEO },
71  { &DXVA2_ModeMPEG2and1_VLD, AV_CODEC_ID_MPEG2VIDEO },
72 
73  /* H.264 */
74  { &DXVA2_ModeH264_F, AV_CODEC_ID_H264 },
75  { &DXVA2_ModeH264_E, AV_CODEC_ID_H264 },
76  /* Intel specific H.264 mode */
77  { &DXVADDI_Intel_ModeH264_E, AV_CODEC_ID_H264 },
78 
79  /* VC-1 / WMV3 */
80  { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_VC1 },
81  { &DXVA2_ModeVC1_D2010, AV_CODEC_ID_WMV3 },
82  { &DXVA2_ModeVC1_D, AV_CODEC_ID_VC1 },
83  { &DXVA2_ModeVC1_D, AV_CODEC_ID_WMV3 },
84 
85  /* HEVC/H.265 */
86  { &DXVA2_ModeHEVC_VLD_Main, AV_CODEC_ID_HEVC },
87  { &DXVA2_ModeHEVC_VLD_Main10, AV_CODEC_ID_HEVC },
88 
89  { NULL, 0 },
90 };
91 
92 typedef struct DXVA2Context {
93  IDirectXVideoDecoder *decoder;
94 
96  DXVA2_ConfigPictureDecode decoder_config;
97  IDirectXVideoDecoderService *decoder_service;
98 
100 
103 } DXVA2Context;
104 
106 {
107  InputStream *ist = s->opaque;
108  DXVA2Context *ctx = ist->hwaccel_ctx;
109 
110  ist->hwaccel_uninit = NULL;
111  ist->hwaccel_get_buffer = NULL;
113 
114  if (ctx->decoder_service)
115  IDirectXVideoDecoderService_Release(ctx->decoder_service);
116 
119 
120  av_frame_free(&ctx->tmp_frame);
121 
122  av_freep(&ist->hwaccel_ctx);
124 }
125 
126 static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
127 {
128  InputStream *ist = s->opaque;
129  DXVA2Context *ctx = ist->hwaccel_ctx;
130 
131  return av_hwframe_get_buffer(ctx->hw_frames_ctx, frame, 0);
132 }
133 
135 {
136  InputStream *ist = s->opaque;
137  DXVA2Context *ctx = ist->hwaccel_ctx;
138  int ret;
139 
140  ret = av_hwframe_transfer_data(ctx->tmp_frame, frame, 0);
141  if (ret < 0)
142  return ret;
143 
144  ret = av_frame_copy_props(ctx->tmp_frame, frame);
145  if (ret < 0) {
147  return ret;
148  }
149 
150  av_frame_unref(frame);
151  av_frame_move_ref(frame, ctx->tmp_frame);
152 
153  return 0;
154 }
155 
157 {
158  InputStream *ist = s->opaque;
159  int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
160  DXVA2Context *ctx;
161  HANDLE device_handle;
162  HRESULT hr;
163 
164  AVHWDeviceContext *device_ctx;
165  AVDXVA2DeviceContext *device_hwctx;
166  int ret;
167 
168  ctx = av_mallocz(sizeof(*ctx));
169  if (!ctx)
170  return AVERROR(ENOMEM);
171 
172  ist->hwaccel_ctx = ctx;
176 
178  ist->hwaccel_device, NULL, 0);
179  if (ret < 0)
180  goto fail;
181  device_ctx = (AVHWDeviceContext*)ctx->hw_device_ctx->data;
182  device_hwctx = device_ctx->hwctx;
183 
184  hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr,
185  &device_handle);
186  if (FAILED(hr)) {
187  av_log(NULL, loglevel, "Failed to open a device handle\n");
188  goto fail;
189  }
190 
191  hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr, device_handle,
192  &IID_IDirectXVideoDecoderService,
193  (void **)&ctx->decoder_service);
194  IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, device_handle);
195  if (FAILED(hr)) {
196  av_log(NULL, loglevel, "Failed to create IDirectXVideoDecoderService\n");
197  goto fail;
198  }
199 
200  ctx->tmp_frame = av_frame_alloc();
201  if (!ctx->tmp_frame)
202  goto fail;
203 
204  s->hwaccel_context = av_mallocz(sizeof(struct dxva_context));
205  if (!s->hwaccel_context)
206  goto fail;
207 
208  return 0;
209 fail:
210  dxva2_uninit(s);
211  return AVERROR(EINVAL);
212 }
213 
214 static int dxva2_get_decoder_configuration(AVCodecContext *s, const GUID *device_guid,
215  const DXVA2_VideoDesc *desc,
216  DXVA2_ConfigPictureDecode *config)
217 {
218  InputStream *ist = s->opaque;
219  int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
220  DXVA2Context *ctx = ist->hwaccel_ctx;
221  unsigned cfg_count = 0, best_score = 0;
222  DXVA2_ConfigPictureDecode *cfg_list = NULL;
223  DXVA2_ConfigPictureDecode best_cfg = {{0}};
224  HRESULT hr;
225  int i;
226 
227  hr = IDirectXVideoDecoderService_GetDecoderConfigurations(ctx->decoder_service, device_guid, desc, NULL, &cfg_count, &cfg_list);
228  if (FAILED(hr)) {
229  av_log(NULL, loglevel, "Unable to retrieve decoder configurations\n");
230  return AVERROR(EINVAL);
231  }
232 
233  for (i = 0; i < cfg_count; i++) {
234  DXVA2_ConfigPictureDecode *cfg = &cfg_list[i];
235 
236  unsigned score;
237  if (cfg->ConfigBitstreamRaw == 1)
238  score = 1;
239  else if (s->codec_id == AV_CODEC_ID_H264 && cfg->ConfigBitstreamRaw == 2)
240  score = 2;
241  else
242  continue;
243  if (IsEqualGUID(&cfg->guidConfigBitstreamEncryption, &DXVA2_NoEncrypt))
244  score += 16;
245  if (score > best_score) {
246  best_score = score;
247  best_cfg = *cfg;
248  }
249  }
250  CoTaskMemFree(cfg_list);
251 
252  if (!best_score) {
253  av_log(NULL, loglevel, "No valid decoder configuration available\n");
254  return AVERROR(EINVAL);
255  }
256 
257  *config = best_cfg;
258  return 0;
259 }
260 
262 {
263  InputStream *ist = s->opaque;
264  int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
265  DXVA2Context *ctx = ist->hwaccel_ctx;
266  struct dxva_context *dxva_ctx = s->hwaccel_context;
267  GUID *guid_list = NULL;
268  unsigned guid_count = 0, i, j;
269  GUID device_guid = GUID_NULL;
270  const D3DFORMAT surface_format = s->sw_pix_fmt == AV_PIX_FMT_YUV420P10 ?
271  MKTAG('P', '0', '1', '0') : MKTAG('N', 'V', '1', '2');
272  D3DFORMAT target_format = 0;
273  DXVA2_VideoDesc desc = { 0 };
274  DXVA2_ConfigPictureDecode config;
275  HRESULT hr;
276  int surface_alignment, num_surfaces;
277  int ret;
278 
279  AVDXVA2FramesContext *frames_hwctx;
280  AVHWFramesContext *frames_ctx;
281 
282  hr = IDirectXVideoDecoderService_GetDecoderDeviceGuids(ctx->decoder_service, &guid_count, &guid_list);
283  if (FAILED(hr)) {
284  av_log(NULL, loglevel, "Failed to retrieve decoder device GUIDs\n");
285  goto fail;
286  }
287 
288  for (i = 0; dxva2_modes[i].guid; i++) {
289  D3DFORMAT *target_list = NULL;
290  unsigned target_count = 0;
291  const dxva2_mode *mode = &dxva2_modes[i];
292  if (mode->codec != s->codec_id)
293  continue;
294 
295  for (j = 0; j < guid_count; j++) {
296  if (IsEqualGUID(mode->guid, &guid_list[j]))
297  break;
298  }
299  if (j == guid_count)
300  continue;
301 
302  hr = IDirectXVideoDecoderService_GetDecoderRenderTargets(ctx->decoder_service, mode->guid, &target_count, &target_list);
303  if (FAILED(hr)) {
304  continue;
305  }
306  for (j = 0; j < target_count; j++) {
307  const D3DFORMAT format = target_list[j];
308  if (format == surface_format) {
309  target_format = format;
310  break;
311  }
312  }
313  CoTaskMemFree(target_list);
314  if (target_format) {
315  device_guid = *mode->guid;
316  break;
317  }
318  }
319  CoTaskMemFree(guid_list);
320 
321  if (IsEqualGUID(&device_guid, &GUID_NULL)) {
322  av_log(NULL, loglevel, "No decoder device for codec found\n");
323  goto fail;
324  }
325 
326  desc.SampleWidth = s->coded_width;
327  desc.SampleHeight = s->coded_height;
328  desc.Format = target_format;
329 
330  ret = dxva2_get_decoder_configuration(s, &device_guid, &desc, &config);
331  if (ret < 0) {
332  goto fail;
333  }
334 
335  /* decoding MPEG-2 requires additional alignment on some Intel GPUs,
336  but it causes issues for H.264 on certain AMD GPUs..... */
338  surface_alignment = 32;
339  /* the HEVC DXVA2 spec asks for 128 pixel aligned surfaces to ensure
340  all coding features have enough room to work with */
341  else if (s->codec_id == AV_CODEC_ID_HEVC)
342  surface_alignment = 128;
343  else
344  surface_alignment = 16;
345 
346  /* 4 base work surfaces */
347  num_surfaces = 4;
348 
349  /* add surfaces based on number of possible refs */
351  num_surfaces += 16;
352  else
353  num_surfaces += 2;
354 
355  /* add extra surfaces for frame threading */
357  num_surfaces += s->thread_count;
358 
360  if (!ctx->hw_frames_ctx)
361  goto fail;
362  frames_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
363  frames_hwctx = frames_ctx->hwctx;
364 
365  frames_ctx->format = AV_PIX_FMT_DXVA2_VLD;
366  frames_ctx->sw_format = s->sw_pix_fmt == AV_PIX_FMT_YUV420P10 ?
368  frames_ctx->width = FFALIGN(s->coded_width, surface_alignment);
369  frames_ctx->height = FFALIGN(s->coded_height, surface_alignment);
370  frames_ctx->initial_pool_size = num_surfaces;
371 
372  frames_hwctx->surface_type = DXVA2_VideoDecoderRenderTarget;
373 
375  if (ret < 0) {
376  av_log(NULL, loglevel, "Failed to initialize the HW frames context\n");
377  goto fail;
378  }
379 
380  hr = IDirectXVideoDecoderService_CreateVideoDecoder(ctx->decoder_service, &device_guid,
381  &desc, &config, frames_hwctx->surfaces,
382  frames_hwctx->nb_surfaces, &frames_hwctx->decoder_to_release);
383  if (FAILED(hr)) {
384  av_log(NULL, loglevel, "Failed to create DXVA2 video decoder\n");
385  goto fail;
386  }
387 
388  ctx->decoder_guid = device_guid;
389  ctx->decoder_config = config;
390 
391  dxva_ctx->cfg = &ctx->decoder_config;
392  dxva_ctx->decoder = frames_hwctx->decoder_to_release;
393  dxva_ctx->surface = frames_hwctx->surfaces;
394  dxva_ctx->surface_count = frames_hwctx->nb_surfaces;
395 
396  if (IsEqualGUID(&ctx->decoder_guid, &DXVADDI_Intel_ModeH264_E))
398 
399  return 0;
400 fail:
402  return AVERROR(EINVAL);
403 }
404 
406 {
407  InputStream *ist = s->opaque;
408  int loglevel = (ist->hwaccel_id == HWACCEL_AUTO) ? AV_LOG_VERBOSE : AV_LOG_ERROR;
409  DXVA2Context *ctx;
410  int ret;
411 
412  if (!ist->hwaccel_ctx) {
413  ret = dxva2_alloc(s);
414  if (ret < 0)
415  return ret;
416  }
417  ctx = ist->hwaccel_ctx;
418 
419  if (s->codec_id == AV_CODEC_ID_H264 &&
421  av_log(NULL, loglevel, "Unsupported H.264 profile for DXVA2 HWAccel: %d\n", s->profile);
422  return AVERROR(EINVAL);
423  }
424 
425  if (s->codec_id == AV_CODEC_ID_HEVC &&
427  av_log(NULL, loglevel, "Unsupported HEVC profile for DXVA2 HWAccel: %d\n", s->profile);
428  return AVERROR(EINVAL);
429  }
430 
432 
433  ret = dxva2_create_decoder(s);
434  if (ret < 0) {
435  av_log(NULL, loglevel, "Error creating the DXVA2 decoder\n");
436  return ret;
437  }
438 
439  return 0;
440 }
This struct aggregates all the (hardware/vendor-specific) "high-level" state, i.e.
Definition: hwcontext.h:54
const GUID * guid
Definition: avconv_dxva2.c:64
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:106
This structure describes decoded (raw) audio or video data.
Definition: frame.h:140
int coded_width
Bitstream width / height, may be different from width/height e.g.
Definition: avcodec.h:1595
This struct is allocated as AVHWFramesContext.hwctx.
misc image utilities
const char * desc
Definition: nvenc.c:101
An API-specific header for AV_HWDEVICE_TYPE_DXVA2.
av_log(ac->avr, AV_LOG_TRACE, "%d samples - audio_convert: %s to %s (%s)\, len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic ? ac->func_descr_generic :ac->func_descr)
static int dxva2_get_decoder_configuration(AVCodecContext *s, const GUID *device_guid, const DXVA2_VideoDesc *desc, DXVA2_ConfigPictureDecode *config)
Definition: avconv_dxva2.c:214
int width
The allocated dimensions of the frames in this pool.
Definition: hwcontext.h:222
void(* hwaccel_uninit)(AVCodecContext *s)
Definition: avconv.h:298
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:319
LPDIRECT3DSURFACE9 * surface
The array of Direct3D surfaces used to create the decoder.
Definition: dxva2.h:76
static const dxva2_mode dxva2_modes[]
Definition: avconv_dxva2.c:68
int profile
profile
Definition: avcodec.h:2880
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
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
Definition: mem.c:202
#define AV_PIX_FMT_P010
Definition: pixfmt.h:288
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
Definition: frame.c:68
void * hwaccel_context
Hardware accelerator context.
Definition: avcodec.h:2708
DWORD surface_type
The surface type (e.g.
#define FF_PROFILE_HEVC_MAIN
Definition: avcodec.h:2961
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:463
static int flags
Definition: log.c:50
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:140
#define FF_PROFILE_HEVC_MAIN_10
Definition: avcodec.h:2962
#define FFALIGN(x, a)
Definition: macros.h:48
int(* hwaccel_retrieve_data)(AVCodecContext *s, AVFrame *frame)
Definition: avconv.h:300
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:193
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:124
IDirectXVideoDecoder * decoder_to_release
Certain drivers require the decoder to be destroyed before the surfaces.
int dxva2_init(AVCodecContext *s)
Definition: avconv_dxva2.c:405
#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:80
int active_thread_type
Which multithreading methods are in use by the codec.
Definition: avcodec.h:2825
#define FF_PROFILE_H264_HIGH
Definition: avcodec.h:2916
planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 plane for the UV components, which are interleaved (firs...
Definition: pixfmt.h:86
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:394
#define fail()
Definition: checkasm.h:80
reference-counted frame API
static void dxva2_uninit(AVCodecContext *s)
Definition: avconv_dxva2.c:105
int av_hwframe_transfer_data(AVFrame *dst, const AVFrame *src, int flags)
Copy data to or from a hw surface.
Definition: hwcontext.c:368
int initial_pool_size
Initial size of the frame pool.
Definition: hwcontext.h:192
static int dxva2_create_decoder(AVCodecContext *s)
Definition: avconv_dxva2.c:261
DXVA2_ConfigPictureDecode decoder_config
Definition: avconv_dxva2.c:96
#define FF_THREAD_FRAME
Decode more than one frame at once.
Definition: avcodec.h:2817
#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO
Work around for Direct3D11 and old Intel GPUs with ClearVideo interface.
Definition: d3d11va.h:49
static int dxva2_get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
Definition: avconv_dxva2.c:126
AVFormatContext * ctx
Definition: movenc.c:48
AVFrame * tmp_frame
Definition: avconv_dxva2.c:99
enum AVCodecID codec
Definition: avconv_dxva2.c:65
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:198
int thread_count
thread count is used to decide how many independent tasks should be passed to execute() ...
Definition: avcodec.h:2806
NULL
Definition: eval.c:55
Public libavcodec DXVA2 header.
GUID decoder_guid
Definition: avconv_dxva2.c:95
enum AVCodecID codec_id
Definition: avcodec.h:1426
main external API structure.
Definition: avcodec.h:1409
uint8_t * data
The data buffer.
Definition: buffer.h:89
static int dxva2_alloc(AVCodecContext *s)
Definition: avconv_dxva2.c:156
void * hwctx
The format-specific data, allocated and freed automatically along with this context.
Definition: hwcontext.h:155
static int dxva2_retrieve_data(AVCodecContext *s, AVFrame *frame)
Definition: avconv_dxva2.c:134
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:263
int coded_height
Definition: avcodec.h:1595
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: avconv_dxva2.c:93
HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer. ...
Definition: pixfmt.h:137
AVBufferRef * hw_device_ctx
Definition: avconv_dxva2.c:101
int(* hwaccel_get_buffer)(AVCodecContext *s, AVFrame *frame, int flags)
Definition: avconv.h:299
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
Definition: frame.c:302
A reference to a data buffer.
Definition: buffer.h:81
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.
IDirectXVideoDecoderService * decoder_service
Definition: avconv_dxva2.c:97
pixel format definitions
This struct is allocated as AVHWDeviceContext.hwctx.
void * hwaccel_ctx
Definition: avconv.h:297
char * hwaccel_device
Definition: avconv.h:292
AVBufferRef * hw_frames_ctx
Definition: avconv_dxva2.c:102
IDirectXVideoDecoder * decoder
DXVA2 decoder object.
Definition: dxva2.h:61
#define FF_PROFILE_H264_CONSTRAINED
Definition: avcodec.h:2909
enum HWAccelID hwaccel_id
Definition: avconv.h:291
#define MKTAG(a, b, c, d)
Definition: common.h:256
enum AVPixelFormat sw_format
The pixel format identifying the actual data layout of the hardware frames.
Definition: hwcontext.h:215
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
Definition: mem.c:211
enum AVPixelFormat sw_pix_fmt
Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:3070
void * opaque
Private data of the user, can be used to carry app specific stuff.
Definition: avcodec.h:1466
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Definition: frame.c:386
This structure is used to provides the necessary configurations and data to the DXVA2 Libav HWAccel i...
Definition: dxva2.h:57