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vdpau.c
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1 /*
2  * Video Decode and Presentation API for UNIX (VDPAU) is used for
3  * HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
4  *
5  * Copyright (c) 2008 NVIDIA
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include <limits.h>
25 #include "libavutil/avassert.h"
26 #include "avcodec.h"
27 #include "internal.h"
28 #include "h264.h"
29 #include "vc1.h"
30 
31 #undef NDEBUG
32 #include <assert.h>
33 
34 #include "vdpau.h"
35 #include "vdpau_internal.h"
36 
37 /**
38  * @addtogroup VDPAU_Decoding
39  *
40  * @{
41  */
42 
43 static int vdpau_error(VdpStatus status)
44 {
45  switch (status) {
46  case VDP_STATUS_OK:
47  return 0;
48  case VDP_STATUS_NO_IMPLEMENTATION:
49  return AVERROR(ENOSYS);
50  case VDP_STATUS_DISPLAY_PREEMPTED:
51  return AVERROR(EIO);
52  case VDP_STATUS_INVALID_HANDLE:
53  return AVERROR(EBADF);
54  case VDP_STATUS_INVALID_POINTER:
55  return AVERROR(EFAULT);
56  case VDP_STATUS_RESOURCES:
57  return AVERROR(ENOBUFS);
58  case VDP_STATUS_HANDLE_DEVICE_MISMATCH:
59  return AVERROR(EXDEV);
60  case VDP_STATUS_ERROR:
61  return AVERROR(EIO);
62  default:
63  return AVERROR(EINVAL);
64  }
65 }
66 
68 {
69  return av_vdpau_alloc_context();
70 }
71 
72 MAKE_ACCESSORS(AVVDPAUContext, vdpau_hwaccel, AVVDPAU_Render2, render2)
73 
74 int ff_vdpau_common_init(AVCodecContext *avctx, VdpDecoderProfile profile,
75  int level)
76 {
77  VDPAUHWContext *hwctx = avctx->hwaccel_context;
78  VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
79  VdpVideoSurfaceQueryCapabilities *surface_query_caps;
80  VdpDecoderQueryCapabilities *decoder_query_caps;
81  VdpDecoderCreate *create;
82  void *func;
83  VdpStatus status;
84  VdpBool supported;
85  uint32_t max_level, max_mb, max_width, max_height;
86  /* See vdpau/vdpau.h for alignment constraints. */
87  uint32_t width = (avctx->coded_width + 1) & ~1;
88  uint32_t height = (avctx->coded_height + 3) & ~3;
89 
90  vdctx->width = UINT32_MAX;
91  vdctx->height = UINT32_MAX;
92 
93  if (!hwctx) {
94  vdctx->device = VDP_INVALID_HANDLE;
95  av_log(avctx, AV_LOG_WARNING, "hwaccel_context has not been setup by the user application, cannot initialize\n");
96  return 0;
97  }
98 
99  if (hwctx->context.decoder != VDP_INVALID_HANDLE) {
100  vdctx->decoder = hwctx->context.decoder;
101  vdctx->render = hwctx->context.render;
102  vdctx->device = VDP_INVALID_HANDLE;
103  return 0; /* Decoder created by user */
104  }
105  hwctx->reset = 0;
106 
107  vdctx->device = hwctx->device;
108  vdctx->get_proc_address = hwctx->get_proc_address;
109 
110  if (hwctx->flags & AV_HWACCEL_FLAG_IGNORE_LEVEL)
111  level = 0;
112  else if (level < 0)
113  return AVERROR(ENOTSUP);
114 
115  status = vdctx->get_proc_address(vdctx->device,
116  VDP_FUNC_ID_VIDEO_SURFACE_QUERY_CAPABILITIES,
117  &func);
118  if (status != VDP_STATUS_OK)
119  return vdpau_error(status);
120  else
121  surface_query_caps = func;
122 
123  status = surface_query_caps(vdctx->device, VDP_CHROMA_TYPE_420, &supported,
124  &max_width, &max_height);
125  if (status != VDP_STATUS_OK)
126  return vdpau_error(status);
127  if (supported != VDP_TRUE ||
128  max_width < width || max_height < height)
129  return AVERROR(ENOTSUP);
130 
131  status = vdctx->get_proc_address(vdctx->device,
132  VDP_FUNC_ID_DECODER_QUERY_CAPABILITIES,
133  &func);
134  if (status != VDP_STATUS_OK)
135  return vdpau_error(status);
136  else
137  decoder_query_caps = func;
138 
139  status = decoder_query_caps(vdctx->device, profile, &supported, &max_level,
140  &max_mb, &max_width, &max_height);
141  if (status != VDP_STATUS_OK)
142  return vdpau_error(status);
143 
144  if (supported != VDP_TRUE || max_level < level ||
145  max_width < width || max_height < height)
146  return AVERROR(ENOTSUP);
147 
148  status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_CREATE,
149  &func);
150  if (status != VDP_STATUS_OK)
151  return vdpau_error(status);
152  else
153  create = func;
154 
155  status = vdctx->get_proc_address(vdctx->device, VDP_FUNC_ID_DECODER_RENDER,
156  &func);
157  if (status != VDP_STATUS_OK)
158  return vdpau_error(status);
159  else
160  vdctx->render = func;
161 
162  status = create(vdctx->device, profile, width, height, avctx->refs,
163  &vdctx->decoder);
164  if (status == VDP_STATUS_OK) {
165  vdctx->width = avctx->coded_width;
166  vdctx->height = avctx->coded_height;
167  }
168 
169  return vdpau_error(status);
170 }
171 
173 {
174  VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
175  VdpDecoderDestroy *destroy;
176  void *func;
177  VdpStatus status;
178 
179  if (vdctx->device == VDP_INVALID_HANDLE)
180  return 0; /* Decoder created and destroyed by user */
181  if (vdctx->width == UINT32_MAX && vdctx->height == UINT32_MAX)
182  return 0;
183 
184  status = vdctx->get_proc_address(vdctx->device,
185  VDP_FUNC_ID_DECODER_DESTROY, &func);
186  if (status != VDP_STATUS_OK)
187  return vdpau_error(status);
188  else
189  destroy = func;
190 
191  status = destroy(vdctx->decoder);
192  return vdpau_error(status);
193 }
194 
196 {
197  VDPAUHWContext *hwctx = avctx->hwaccel_context;
198  VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
199 
200  if (vdctx->device == VDP_INVALID_HANDLE)
201  return 0; /* Decoder created by user */
202  if (avctx->coded_width == vdctx->width &&
203  avctx->coded_height == vdctx->height && !hwctx->reset)
204  return 0;
205 
206  avctx->hwaccel->uninit(avctx);
207  return avctx->hwaccel->init(avctx);
208 }
209 
210 int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic_ctx,
211  av_unused const uint8_t *buffer,
212  av_unused uint32_t size)
213 {
214  pic_ctx->bitstream_buffers_allocated = 0;
215  pic_ctx->bitstream_buffers_used = 0;
216  pic_ctx->bitstream_buffers = NULL;
217  return 0;
218 }
219 
221  struct vdpau_picture_context *pic_ctx)
222 {
223  VDPAUContext *vdctx = avctx->internal->hwaccel_priv_data;
224  AVVDPAUContext *hwctx = avctx->hwaccel_context;
225  VdpVideoSurface surf = ff_vdpau_get_surface_id(frame);
226  VdpStatus status;
227  int val;
228 
229  val = ff_vdpau_common_reinit(avctx);
230  if (val < 0)
231  return val;
232 
233 #if FF_API_BUFS_VDPAU
235  hwctx->info = pic_ctx->info;
236  hwctx->bitstream_buffers = pic_ctx->bitstream_buffers;
237  hwctx->bitstream_buffers_used = pic_ctx->bitstream_buffers_used;
238  hwctx->bitstream_buffers_allocated = pic_ctx->bitstream_buffers_allocated;
240 #endif
241 
242  if (!hwctx->render && hwctx->render2) {
243  status = hwctx->render2(avctx, frame, (void *)&pic_ctx->info,
244  pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
245  } else
246  status = vdctx->render(vdctx->decoder, surf, (void *)&pic_ctx->info,
247  pic_ctx->bitstream_buffers_used,
248  pic_ctx->bitstream_buffers);
249 
250  av_freep(&pic_ctx->bitstream_buffers);
251 
252 #if FF_API_BUFS_VDPAU
254  hwctx->bitstream_buffers = NULL;
255  hwctx->bitstream_buffers_used = 0;
256  hwctx->bitstream_buffers_allocated = 0;
258 #endif
259 
260  return vdpau_error(status);
261 }
262 
263 #if CONFIG_H263_VDPAU_HWACCEL || CONFIG_MPEG1_VDPAU_HWACCEL || \
264  CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
265  CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
267 {
268  MpegEncContext *s = avctx->priv_data;
269  Picture *pic = s->current_picture_ptr;
270  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
271  int val;
272 
273  val = ff_vdpau_common_end_frame(avctx, pic->f, pic_ctx);
274  if (val < 0)
275  return val;
276 
278  return 0;
279 }
280 #endif
281 
282 int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx,
283  const uint8_t *buf, uint32_t size)
284 {
285  VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
286 
287  buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
288  (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
289  if (!buffers)
290  return AVERROR(ENOMEM);
291 
292  pic_ctx->bitstream_buffers = buffers;
293  buffers += pic_ctx->bitstream_buffers_used++;
294 
295  buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
296  buffers->bitstream = buf;
297  buffers->bitstream_bytes = size;
298  return 0;
299 }
300 
301 /* Obsolete non-hwaccel VDPAU support below... */
302 
304 {
305  struct vdpau_render_state *render, *render_ref;
306  VdpReferenceFrameH264 *rf, *rf2;
307  H264Picture *pic;
308  int i, list, pic_frame_idx;
309 
310  render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
311  assert(render);
312 
313  rf = &render->info.h264.referenceFrames[0];
314 #define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
315 
316  for (list = 0; list < 2; ++list) {
317  H264Picture **lp = list ? h->long_ref : h->short_ref;
318  int ls = list ? 16 : h->short_ref_count;
319 
320  for (i = 0; i < ls; ++i) {
321  pic = lp[i];
322  if (!pic || !pic->reference)
323  continue;
324  pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
325 
326  render_ref = (struct vdpau_render_state *)pic->f.data[0];
327  assert(render_ref);
328 
329  rf2 = &render->info.h264.referenceFrames[0];
330  while (rf2 != rf) {
331  if (
332  (rf2->surface == render_ref->surface)
333  && (rf2->is_long_term == pic->long_ref)
334  && (rf2->frame_idx == pic_frame_idx)
335  )
336  break;
337  ++rf2;
338  }
339  if (rf2 != rf) {
340  rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
341  rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
342  continue;
343  }
344 
345  if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
346  continue;
347 
348  rf->surface = render_ref->surface;
349  rf->is_long_term = pic->long_ref;
350  rf->top_is_reference = (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
351  rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
352  rf->field_order_cnt[0] = pic->field_poc[0];
353  rf->field_order_cnt[1] = pic->field_poc[1];
354  rf->frame_idx = pic_frame_idx;
355 
356  ++rf;
357  }
358  }
359 
360  for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
361  rf->surface = VDP_INVALID_HANDLE;
362  rf->is_long_term = 0;
363  rf->top_is_reference = 0;
364  rf->bottom_is_reference = 0;
365  rf->field_order_cnt[0] = 0;
366  rf->field_order_cnt[1] = 0;
367  rf->frame_idx = 0;
368  }
369 }
370 
371 void ff_vdpau_add_data_chunk(uint8_t *data, const uint8_t *buf, int buf_size)
372 {
373  struct vdpau_render_state *render = (struct vdpau_render_state*)data;
374  assert(render);
375 
377  render->bitstream_buffers,
379  sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
380  );
381 
382  render->bitstream_buffers[render->bitstream_buffers_used].struct_version = VDP_BITSTREAM_BUFFER_VERSION;
383  render->bitstream_buffers[render->bitstream_buffers_used].bitstream = buf;
384  render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
385  render->bitstream_buffers_used++;
386 }
387 
388 #if CONFIG_H264_VDPAU_DECODER
390 {
391  struct vdpau_render_state *render;
392  int i;
393 
394  render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
395  assert(render);
396 
397  for (i = 0; i < 2; ++i) {
398  int foc = h->cur_pic_ptr->field_poc[i];
399  if (foc == INT_MAX)
400  foc = 0;
401  render->info.h264.field_order_cnt[i] = foc;
402  }
403 
404  render->info.h264.frame_num = h->frame_num;
405 }
406 
408 {
409  struct vdpau_render_state *render;
410 
411  render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
412  assert(render);
413 
414  render->info.h264.slice_count = h->slice_num;
415  if (render->info.h264.slice_count < 1)
416  return;
417 
418  render->info.h264.is_reference = (h->cur_pic_ptr->reference & 3) ? VDP_TRUE : VDP_FALSE;
419  render->info.h264.field_pic_flag = h->picture_structure != PICT_FRAME;
420  render->info.h264.bottom_field_flag = h->picture_structure == PICT_BOTTOM_FIELD;
421  render->info.h264.num_ref_frames = h->sps.ref_frame_count;
422  render->info.h264.mb_adaptive_frame_field_flag = h->sps.mb_aff && !render->info.h264.field_pic_flag;
423  render->info.h264.constrained_intra_pred_flag = h->pps.constrained_intra_pred;
424  render->info.h264.weighted_pred_flag = h->pps.weighted_pred;
425  render->info.h264.weighted_bipred_idc = h->pps.weighted_bipred_idc;
426  render->info.h264.frame_mbs_only_flag = h->sps.frame_mbs_only_flag;
427  render->info.h264.transform_8x8_mode_flag = h->pps.transform_8x8_mode;
428  render->info.h264.chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
429  render->info.h264.second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
430  render->info.h264.pic_init_qp_minus26 = h->pps.init_qp - 26;
431  render->info.h264.num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
432  render->info.h264.num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
433  render->info.h264.log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
434  render->info.h264.pic_order_cnt_type = h->sps.poc_type;
435  render->info.h264.log2_max_pic_order_cnt_lsb_minus4 = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
436  render->info.h264.delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
437  render->info.h264.direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
438  render->info.h264.entropy_coding_mode_flag = h->pps.cabac;
439  render->info.h264.pic_order_present_flag = h->pps.pic_order_present;
440  render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
441  render->info.h264.redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present;
442  memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
443  memcpy(render->info.h264.scaling_lists_8x8[0], h->pps.scaling_matrix8[0], sizeof(render->info.h264.scaling_lists_8x8[0]));
444  memcpy(render->info.h264.scaling_lists_8x8[1], h->pps.scaling_matrix8[3], sizeof(render->info.h264.scaling_lists_8x8[0]));
445 
447  render->bitstream_buffers_used = 0;
448 }
449 #endif /* CONFIG_H264_VDPAU_DECODER */
450 
451 #if CONFIG_MPEG_VDPAU_DECODER || CONFIG_MPEG1_VDPAU_DECODER
453  int buf_size, int slice_count)
454 {
455  struct vdpau_render_state *render, *last, *next;
456  int i;
457 
458  if (!s->current_picture_ptr) return;
459 
460  render = (struct vdpau_render_state *)s->current_picture_ptr->f->data[0];
461  assert(render);
462 
463  /* fill VdpPictureInfoMPEG1Or2 struct */
464  render->info.mpeg.picture_structure = s->picture_structure;
465  render->info.mpeg.picture_coding_type = s->pict_type;
466  render->info.mpeg.intra_dc_precision = s->intra_dc_precision;
467  render->info.mpeg.frame_pred_frame_dct = s->frame_pred_frame_dct;
468  render->info.mpeg.concealment_motion_vectors = s->concealment_motion_vectors;
469  render->info.mpeg.intra_vlc_format = s->intra_vlc_format;
470  render->info.mpeg.alternate_scan = s->alternate_scan;
471  render->info.mpeg.q_scale_type = s->q_scale_type;
472  render->info.mpeg.top_field_first = s->top_field_first;
473  render->info.mpeg.full_pel_forward_vector = s->full_pel[0]; // MPEG-1 only. Set 0 for MPEG-2
474  render->info.mpeg.full_pel_backward_vector = s->full_pel[1]; // MPEG-1 only. Set 0 for MPEG-2
475  render->info.mpeg.f_code[0][0] = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
476  render->info.mpeg.f_code[0][1] = s->mpeg_f_code[0][1];
477  render->info.mpeg.f_code[1][0] = s->mpeg_f_code[1][0];
478  render->info.mpeg.f_code[1][1] = s->mpeg_f_code[1][1];
479  for (i = 0; i < 64; ++i) {
480  render->info.mpeg.intra_quantizer_matrix[i] = s->intra_matrix[i];
481  render->info.mpeg.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
482  }
483 
484  render->info.mpeg.forward_reference = VDP_INVALID_HANDLE;
485  render->info.mpeg.backward_reference = VDP_INVALID_HANDLE;
486 
487  switch(s->pict_type){
488  case AV_PICTURE_TYPE_B:
489  next = (struct vdpau_render_state *)s->next_picture.f->data[0];
490  assert(next);
491  render->info.mpeg.backward_reference = next->surface;
492  // no return here, going to set forward prediction
493  case AV_PICTURE_TYPE_P:
494  last = (struct vdpau_render_state *)s->last_picture.f->data[0];
495  if (!last) // FIXME: Does this test make sense?
496  last = render; // predict second field from the first
497  render->info.mpeg.forward_reference = last->surface;
498  }
499 
500  ff_vdpau_add_data_chunk(s->current_picture_ptr->f->data[0], buf, buf_size);
501 
502  render->info.mpeg.slice_count = slice_count;
503 
504  if (slice_count)
506  render->bitstream_buffers_used = 0;
507 }
508 #endif /* CONFIG_MPEG_VDPAU_DECODER || CONFIG_MPEG1_VDPAU_DECODER */
509 
510 #if CONFIG_VC1_VDPAU_DECODER
512  int buf_size)
513 {
514  VC1Context *v = s->avctx->priv_data;
515  struct vdpau_render_state *render, *last, *next;
516 
517  render = (struct vdpau_render_state *)s->current_picture.f->data[0];
518  assert(render);
519 
520  /* fill LvPictureInfoVC1 struct */
521  render->info.vc1.frame_coding_mode = v->fcm ? v->fcm + 1 : 0;
522  render->info.vc1.postprocflag = v->postprocflag;
523  render->info.vc1.pulldown = v->broadcast;
524  render->info.vc1.interlace = v->interlace;
525  render->info.vc1.tfcntrflag = v->tfcntrflag;
526  render->info.vc1.finterpflag = v->finterpflag;
527  render->info.vc1.psf = v->psf;
528  render->info.vc1.dquant = v->dquant;
529  render->info.vc1.panscan_flag = v->panscanflag;
530  render->info.vc1.refdist_flag = v->refdist_flag;
531  render->info.vc1.quantizer = v->quantizer_mode;
532  render->info.vc1.extended_mv = v->extended_mv;
533  render->info.vc1.extended_dmv = v->extended_dmv;
534  render->info.vc1.overlap = v->overlap;
535  render->info.vc1.vstransform = v->vstransform;
536  render->info.vc1.loopfilter = v->s.loop_filter;
537  render->info.vc1.fastuvmc = v->fastuvmc;
538  render->info.vc1.range_mapy_flag = v->range_mapy_flag;
539  render->info.vc1.range_mapy = v->range_mapy;
540  render->info.vc1.range_mapuv_flag = v->range_mapuv_flag;
541  render->info.vc1.range_mapuv = v->range_mapuv;
542  /* Specific to simple/main profile only */
543  render->info.vc1.multires = v->multires;
544  render->info.vc1.syncmarker = v->resync_marker;
545  render->info.vc1.rangered = v->rangered | (v->rangeredfrm << 1);
546  render->info.vc1.maxbframes = v->s.max_b_frames;
547 
548  render->info.vc1.deblockEnable = v->postprocflag & 1;
549  render->info.vc1.pquant = v->pq;
550 
551  render->info.vc1.forward_reference = VDP_INVALID_HANDLE;
552  render->info.vc1.backward_reference = VDP_INVALID_HANDLE;
553 
554  if (v->bi_type)
555  render->info.vc1.picture_type = 4;
556  else
557  render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;
558 
559  switch(s->pict_type){
560  case AV_PICTURE_TYPE_B:
561  next = (struct vdpau_render_state *)s->next_picture.f->data[0];
562  assert(next);
563  render->info.vc1.backward_reference = next->surface;
564  // no break here, going to set forward prediction
565  case AV_PICTURE_TYPE_P:
566  last = (struct vdpau_render_state *)s->last_picture.f->data[0];
567  if (!last) // FIXME: Does this test make sense?
568  last = render; // predict second field from the first
569  render->info.vc1.forward_reference = last->surface;
570  }
571 
572  ff_vdpau_add_data_chunk(s->current_picture_ptr->f->data[0], buf, buf_size);
573 
574  render->info.vc1.slice_count = 1;
575 
577  render->bitstream_buffers_used = 0;
578 }
579 #endif /* (CONFIG_VC1_VDPAU_DECODER */
580 
581 #if CONFIG_MPEG4_VDPAU_DECODER
583  int buf_size)
584 {
585  MpegEncContext *s = &ctx->m;
586  struct vdpau_render_state *render, *last, *next;
587  int i;
588 
589  if (!s->current_picture_ptr) return;
590 
591  render = (struct vdpau_render_state *)s->current_picture_ptr->f->data[0];
592  assert(render);
593 
594  /* fill VdpPictureInfoMPEG4Part2 struct */
595  render->info.mpeg4.trd[0] = s->pp_time;
596  render->info.mpeg4.trb[0] = s->pb_time;
597  render->info.mpeg4.trd[1] = s->pp_field_time >> 1;
598  render->info.mpeg4.trb[1] = s->pb_field_time >> 1;
599  render->info.mpeg4.vop_time_increment_resolution = s->avctx->time_base.den;
600  render->info.mpeg4.vop_coding_type = 0;
601  render->info.mpeg4.vop_fcode_forward = s->f_code;
602  render->info.mpeg4.vop_fcode_backward = s->b_code;
603  render->info.mpeg4.resync_marker_disable = !ctx->resync_marker;
604  render->info.mpeg4.interlaced = !s->progressive_sequence;
605  render->info.mpeg4.quant_type = s->mpeg_quant;
606  render->info.mpeg4.quarter_sample = s->quarter_sample;
607  render->info.mpeg4.short_video_header = s->avctx->codec->id == AV_CODEC_ID_H263;
608  render->info.mpeg4.rounding_control = s->no_rounding;
609  render->info.mpeg4.alternate_vertical_scan_flag = s->alternate_scan;
610  render->info.mpeg4.top_field_first = s->top_field_first;
611  for (i = 0; i < 64; ++i) {
612  render->info.mpeg4.intra_quantizer_matrix[i] = s->intra_matrix[i];
613  render->info.mpeg4.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
614  }
615  render->info.mpeg4.forward_reference = VDP_INVALID_HANDLE;
616  render->info.mpeg4.backward_reference = VDP_INVALID_HANDLE;
617 
618  switch (s->pict_type) {
619  case AV_PICTURE_TYPE_B:
620  next = (struct vdpau_render_state *)s->next_picture.f->data[0];
621  assert(next);
622  render->info.mpeg4.backward_reference = next->surface;
623  render->info.mpeg4.vop_coding_type = 2;
624  // no break here, going to set forward prediction
625  case AV_PICTURE_TYPE_P:
626  last = (struct vdpau_render_state *)s->last_picture.f->data[0];
627  assert(last);
628  render->info.mpeg4.forward_reference = last->surface;
629  }
630 
631  ff_vdpau_add_data_chunk(s->current_picture_ptr->f->data[0], buf, buf_size);
632 
634  render->bitstream_buffers_used = 0;
635 }
636 #endif /* CONFIG_MPEG4_VDPAU_DECODER */
637 
638 int av_vdpau_get_profile(AVCodecContext *avctx, VdpDecoderProfile *profile)
639 {
640 #define PROFILE(prof) \
641 do { \
642  *profile = prof; \
643  return 0; \
644 } while (0)
645 
646  switch (avctx->codec_id) {
647  case AV_CODEC_ID_MPEG1VIDEO: PROFILE(VDP_DECODER_PROFILE_MPEG1);
649  switch (avctx->profile) {
650  case FF_PROFILE_MPEG2_MAIN: PROFILE(VDP_DECODER_PROFILE_MPEG2_MAIN);
651  case FF_PROFILE_MPEG2_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG2_SIMPLE);
652  default: return AVERROR(EINVAL);
653  }
654  case AV_CODEC_ID_H263: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
655  case AV_CODEC_ID_MPEG4:
656  switch (avctx->profile) {
657  case FF_PROFILE_MPEG4_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_SP);
658  case FF_PROFILE_MPEG4_ADVANCED_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
659  default: return AVERROR(EINVAL);
660  }
661  case AV_CODEC_ID_H264:
662  switch (avctx->profile & ~FF_PROFILE_H264_INTRA) {
664  case FF_PROFILE_H264_BASELINE: PROFILE(VDP_DECODER_PROFILE_H264_BASELINE);
665  case FF_PROFILE_H264_MAIN: PROFILE(VDP_DECODER_PROFILE_H264_MAIN);
666  case FF_PROFILE_H264_HIGH: PROFILE(VDP_DECODER_PROFILE_H264_HIGH);
667  default: return AVERROR(EINVAL);
668  }
669  case AV_CODEC_ID_WMV3:
670  case AV_CODEC_ID_VC1:
671  switch (avctx->profile) {
672  case FF_PROFILE_VC1_SIMPLE: PROFILE(VDP_DECODER_PROFILE_VC1_SIMPLE);
673  case FF_PROFILE_VC1_MAIN: PROFILE(VDP_DECODER_PROFILE_VC1_MAIN);
674  case FF_PROFILE_VC1_ADVANCED: PROFILE(VDP_DECODER_PROFILE_VC1_ADVANCED);
675  default: return AVERROR(EINVAL);
676  }
677  }
678  return AVERROR(EINVAL);
679 }
680 
682 {
683  return av_mallocz(sizeof(AVVDPAUContext));
684 }
685 
686 int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
687  VdpGetProcAddress *get_proc, unsigned flags)
688 {
689  VDPAUHWContext *hwctx;
690 
691  if (flags & ~AV_HWACCEL_FLAG_IGNORE_LEVEL)
692  return AVERROR(EINVAL);
693 
694  if (av_reallocp(&avctx->hwaccel_context, sizeof(*hwctx)))
695  return AVERROR(ENOMEM);
696 
697  hwctx = avctx->hwaccel_context;
698 
699  memset(hwctx, 0, sizeof(*hwctx));
700  hwctx->context.decoder = VDP_INVALID_HANDLE;
701  hwctx->device = device;
702  hwctx->get_proc_address = get_proc;
703  hwctx->flags = flags;
704  hwctx->reset = 1;
705  return 0;
706 }
707 
708 /* @}*/