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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 "avcodec.h"
26 #include "h264.h"
27 #include "vc1.h"
28 
29 #undef NDEBUG
30 #include <assert.h>
31 
32 #include "vdpau.h"
33 #include "vdpau_internal.h"
34 
35 /**
36  * @addtogroup VDPAU_Decoding
37  *
38  * @{
39  */
40 
41 AVVDPAUContext *av_alloc_vdpaucontext(void)
42 {
43  return av_mallocz(sizeof(AVVDPAUContext));
44 }
45 
46 MAKE_ACCESSORS(AVVDPAUContext, vdpau_hwaccel, AVVDPAU_Render2, render2)
47 
48 int ff_vdpau_common_start_frame(Picture *pic,
49  av_unused const uint8_t *buffer,
50  av_unused uint32_t size)
51 {
52  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
53 
54  pic_ctx->bitstream_buffers_allocated = 0;
55  pic_ctx->bitstream_buffers_used = 0;
56  pic_ctx->bitstream_buffers = NULL;
57  return 0;
58 }
59 
60 #if CONFIG_H263_VDPAU_HWACCEL || CONFIG_MPEG1_VDPAU_HWACCEL || \
61  CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
62  CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
63 int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
64 {
65  int res = 0;
66  AVVDPAUContext *hwctx = avctx->hwaccel_context;
67  MpegEncContext *s = avctx->priv_data;
68  Picture *pic = s->current_picture_ptr;
69  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
70  VdpVideoSurface surf = ff_vdpau_get_surface_id(pic);
71 
72 #if FF_API_BUFS_VDPAU
73 FF_DISABLE_DEPRECATION_WARNINGS
74  hwctx->info = pic_ctx->info;
75  hwctx->bitstream_buffers = pic_ctx->bitstream_buffers;
76  hwctx->bitstream_buffers_used = pic_ctx->bitstream_buffers_used;
77  hwctx->bitstream_buffers_allocated = pic_ctx->bitstream_buffers_allocated;
78 FF_ENABLE_DEPRECATION_WARNINGS
79 #endif
80 
81  if (!hwctx->render) {
82  res = hwctx->render2(avctx, &pic->f, (void *)&pic_ctx->info,
83  pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
84  } else
85  hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
86  pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
87 
88  ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
89  av_freep(&pic_ctx->bitstream_buffers);
90 
91 #if FF_API_BUFS_VDPAU
92 FF_DISABLE_DEPRECATION_WARNINGS
93  hwctx->bitstream_buffers = NULL;
94  hwctx->bitstream_buffers_used = 0;
95  hwctx->bitstream_buffers_allocated = 0;
96 FF_ENABLE_DEPRECATION_WARNINGS
97 #endif
98 
99  return res;
100 }
101 #endif
102 
103 int ff_vdpau_add_buffer(Picture *pic, const uint8_t *buf, uint32_t size)
104 {
105  struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
106  VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
107 
108  buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
109  (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
110  if (!buffers)
111  return AVERROR(ENOMEM);
112 
113  pic_ctx->bitstream_buffers = buffers;
114  buffers += pic_ctx->bitstream_buffers_used++;
115 
116  buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
117  buffers->bitstream = buf;
118  buffers->bitstream_bytes = size;
119  return 0;
120 }
121 
122 /* Obsolete non-hwaccel VDPAU support below... */
123 
124 void ff_vdpau_h264_set_reference_frames(H264Context *h)
125 {
126  struct vdpau_render_state *render, *render_ref;
127  VdpReferenceFrameH264 *rf, *rf2;
128  Picture *pic;
129  int i, list, pic_frame_idx;
130 
131  render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
132  assert(render);
133 
134  rf = &render->info.h264.referenceFrames[0];
135 #define H264_RF_COUNT FF_ARRAY_ELEMS(render->info.h264.referenceFrames)
136 
137  for (list = 0; list < 2; ++list) {
138  Picture **lp = list ? h->long_ref : h->short_ref;
139  int ls = list ? 16 : h->short_ref_count;
140 
141  for (i = 0; i < ls; ++i) {
142  pic = lp[i];
143  if (!pic || !pic->reference)
144  continue;
145  pic_frame_idx = pic->long_ref ? pic->pic_id : pic->frame_num;
146 
147  render_ref = (struct vdpau_render_state *)pic->f.data[0];
148  assert(render_ref);
149 
150  rf2 = &render->info.h264.referenceFrames[0];
151  while (rf2 != rf) {
152  if (
153  (rf2->surface == render_ref->surface)
154  && (rf2->is_long_term == pic->long_ref)
155  && (rf2->frame_idx == pic_frame_idx)
156  )
157  break;
158  ++rf2;
159  }
160  if (rf2 != rf) {
161  rf2->top_is_reference |= (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
162  rf2->bottom_is_reference |= (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
163  continue;
164  }
165 
166  if (rf >= &render->info.h264.referenceFrames[H264_RF_COUNT])
167  continue;
168 
169  rf->surface = render_ref->surface;
170  rf->is_long_term = pic->long_ref;
171  rf->top_is_reference = (pic->reference & PICT_TOP_FIELD) ? VDP_TRUE : VDP_FALSE;
172  rf->bottom_is_reference = (pic->reference & PICT_BOTTOM_FIELD) ? VDP_TRUE : VDP_FALSE;
173  rf->field_order_cnt[0] = pic->field_poc[0];
174  rf->field_order_cnt[1] = pic->field_poc[1];
175  rf->frame_idx = pic_frame_idx;
176 
177  ++rf;
178  }
179  }
180 
181  for (; rf < &render->info.h264.referenceFrames[H264_RF_COUNT]; ++rf) {
182  rf->surface = VDP_INVALID_HANDLE;
183  rf->is_long_term = 0;
184  rf->top_is_reference = 0;
185  rf->bottom_is_reference = 0;
186  rf->field_order_cnt[0] = 0;
187  rf->field_order_cnt[1] = 0;
188  rf->frame_idx = 0;
189  }
190 }
191 
192 void ff_vdpau_add_data_chunk(uint8_t *data, const uint8_t *buf, int buf_size)
193 {
194  struct vdpau_render_state *render = (struct vdpau_render_state*)data;
195  assert(render);
196 
197  render->bitstream_buffers= av_fast_realloc(
198  render->bitstream_buffers,
199  &render->bitstream_buffers_allocated,
200  sizeof(*render->bitstream_buffers)*(render->bitstream_buffers_used + 1)
201  );
202 
203  render->bitstream_buffers[render->bitstream_buffers_used].struct_version = VDP_BITSTREAM_BUFFER_VERSION;
204  render->bitstream_buffers[render->bitstream_buffers_used].bitstream = buf;
205  render->bitstream_buffers[render->bitstream_buffers_used].bitstream_bytes = buf_size;
206  render->bitstream_buffers_used++;
207 }
208 
209 #if CONFIG_H264_VDPAU_DECODER
210 void ff_vdpau_h264_picture_start(H264Context *h)
211 {
212  struct vdpau_render_state *render;
213  int i;
214 
215  render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
216  assert(render);
217 
218  for (i = 0; i < 2; ++i) {
219  int foc = h->cur_pic_ptr->field_poc[i];
220  if (foc == INT_MAX)
221  foc = 0;
222  render->info.h264.field_order_cnt[i] = foc;
223  }
224 
225  render->info.h264.frame_num = h->frame_num;
226 }
227 
228 void ff_vdpau_h264_picture_complete(H264Context *h)
229 {
230  struct vdpau_render_state *render;
231 
232  render = (struct vdpau_render_state *)h->cur_pic_ptr->f.data[0];
233  assert(render);
234 
235  render->info.h264.slice_count = h->slice_num;
236  if (render->info.h264.slice_count < 1)
237  return;
238 
239  render->info.h264.is_reference = (h->cur_pic_ptr->reference & 3) ? VDP_TRUE : VDP_FALSE;
240  render->info.h264.field_pic_flag = h->picture_structure != PICT_FRAME;
241  render->info.h264.bottom_field_flag = h->picture_structure == PICT_BOTTOM_FIELD;
242  render->info.h264.num_ref_frames = h->sps.ref_frame_count;
243  render->info.h264.mb_adaptive_frame_field_flag = h->sps.mb_aff && !render->info.h264.field_pic_flag;
244  render->info.h264.constrained_intra_pred_flag = h->pps.constrained_intra_pred;
245  render->info.h264.weighted_pred_flag = h->pps.weighted_pred;
246  render->info.h264.weighted_bipred_idc = h->pps.weighted_bipred_idc;
247  render->info.h264.frame_mbs_only_flag = h->sps.frame_mbs_only_flag;
248  render->info.h264.transform_8x8_mode_flag = h->pps.transform_8x8_mode;
249  render->info.h264.chroma_qp_index_offset = h->pps.chroma_qp_index_offset[0];
250  render->info.h264.second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
251  render->info.h264.pic_init_qp_minus26 = h->pps.init_qp - 26;
252  render->info.h264.num_ref_idx_l0_active_minus1 = h->pps.ref_count[0] - 1;
253  render->info.h264.num_ref_idx_l1_active_minus1 = h->pps.ref_count[1] - 1;
254  render->info.h264.log2_max_frame_num_minus4 = h->sps.log2_max_frame_num - 4;
255  render->info.h264.pic_order_cnt_type = h->sps.poc_type;
256  render->info.h264.log2_max_pic_order_cnt_lsb_minus4 = h->sps.poc_type ? 0 : h->sps.log2_max_poc_lsb - 4;
257  render->info.h264.delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
258  render->info.h264.direct_8x8_inference_flag = h->sps.direct_8x8_inference_flag;
259  render->info.h264.entropy_coding_mode_flag = h->pps.cabac;
260  render->info.h264.pic_order_present_flag = h->pps.pic_order_present;
261  render->info.h264.deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
262  render->info.h264.redundant_pic_cnt_present_flag = h->pps.redundant_pic_cnt_present;
263  memcpy(render->info.h264.scaling_lists_4x4, h->pps.scaling_matrix4, sizeof(render->info.h264.scaling_lists_4x4));
264  memcpy(render->info.h264.scaling_lists_8x8[0], h->pps.scaling_matrix8[0], sizeof(render->info.h264.scaling_lists_8x8[0]));
265  memcpy(render->info.h264.scaling_lists_8x8[1], h->pps.scaling_matrix8[3], sizeof(render->info.h264.scaling_lists_8x8[0]));
266 
267  ff_h264_draw_horiz_band(h, 0, h->avctx->height);
268  render->bitstream_buffers_used = 0;
269 }
270 #endif /* CONFIG_H264_VDPAU_DECODER */
271 
272 #if CONFIG_MPEG_VDPAU_DECODER || CONFIG_MPEG1_VDPAU_DECODER
273 void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
274  int buf_size, int slice_count)
275 {
276  struct vdpau_render_state *render, *last, *next;
277  int i;
278 
279  if (!s->current_picture_ptr) return;
280 
281  render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
282  assert(render);
283 
284  /* fill VdpPictureInfoMPEG1Or2 struct */
285  render->info.mpeg.picture_structure = s->picture_structure;
286  render->info.mpeg.picture_coding_type = s->pict_type;
287  render->info.mpeg.intra_dc_precision = s->intra_dc_precision;
288  render->info.mpeg.frame_pred_frame_dct = s->frame_pred_frame_dct;
289  render->info.mpeg.concealment_motion_vectors = s->concealment_motion_vectors;
290  render->info.mpeg.intra_vlc_format = s->intra_vlc_format;
291  render->info.mpeg.alternate_scan = s->alternate_scan;
292  render->info.mpeg.q_scale_type = s->q_scale_type;
293  render->info.mpeg.top_field_first = s->top_field_first;
294  render->info.mpeg.full_pel_forward_vector = s->full_pel[0]; // MPEG-1 only. Set 0 for MPEG-2
295  render->info.mpeg.full_pel_backward_vector = s->full_pel[1]; // MPEG-1 only. Set 0 for MPEG-2
296  render->info.mpeg.f_code[0][0] = s->mpeg_f_code[0][0]; // For MPEG-1 fill both horiz. & vert.
297  render->info.mpeg.f_code[0][1] = s->mpeg_f_code[0][1];
298  render->info.mpeg.f_code[1][0] = s->mpeg_f_code[1][0];
299  render->info.mpeg.f_code[1][1] = s->mpeg_f_code[1][1];
300  for (i = 0; i < 64; ++i) {
301  render->info.mpeg.intra_quantizer_matrix[i] = s->intra_matrix[i];
302  render->info.mpeg.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
303  }
304 
305  render->info.mpeg.forward_reference = VDP_INVALID_HANDLE;
306  render->info.mpeg.backward_reference = VDP_INVALID_HANDLE;
307 
308  switch(s->pict_type){
309  case AV_PICTURE_TYPE_B:
310  next = (struct vdpau_render_state *)s->next_picture.f.data[0];
311  assert(next);
312  render->info.mpeg.backward_reference = next->surface;
313  // no return here, going to set forward prediction
314  case AV_PICTURE_TYPE_P:
315  last = (struct vdpau_render_state *)s->last_picture.f.data[0];
316  if (!last) // FIXME: Does this test make sense?
317  last = render; // predict second field from the first
318  render->info.mpeg.forward_reference = last->surface;
319  }
320 
321  ff_vdpau_add_data_chunk(s->current_picture_ptr->f.data[0], buf, buf_size);
322 
323  render->info.mpeg.slice_count = slice_count;
324 
325  if (slice_count)
326  ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
327  render->bitstream_buffers_used = 0;
328 }
329 #endif /* CONFIG_MPEG_VDPAU_DECODER || CONFIG_MPEG1_VDPAU_DECODER */
330 
331 #if CONFIG_VC1_VDPAU_DECODER
332 void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
333  int buf_size)
334 {
335  VC1Context *v = s->avctx->priv_data;
336  struct vdpau_render_state *render, *last, *next;
337 
338  render = (struct vdpau_render_state *)s->current_picture.f.data[0];
339  assert(render);
340 
341  /* fill LvPictureInfoVC1 struct */
342  render->info.vc1.frame_coding_mode = v->fcm ? v->fcm + 1 : 0;
343  render->info.vc1.postprocflag = v->postprocflag;
344  render->info.vc1.pulldown = v->broadcast;
345  render->info.vc1.interlace = v->interlace;
346  render->info.vc1.tfcntrflag = v->tfcntrflag;
347  render->info.vc1.finterpflag = v->finterpflag;
348  render->info.vc1.psf = v->psf;
349  render->info.vc1.dquant = v->dquant;
350  render->info.vc1.panscan_flag = v->panscanflag;
351  render->info.vc1.refdist_flag = v->refdist_flag;
352  render->info.vc1.quantizer = v->quantizer_mode;
353  render->info.vc1.extended_mv = v->extended_mv;
354  render->info.vc1.extended_dmv = v->extended_dmv;
355  render->info.vc1.overlap = v->overlap;
356  render->info.vc1.vstransform = v->vstransform;
357  render->info.vc1.loopfilter = v->s.loop_filter;
358  render->info.vc1.fastuvmc = v->fastuvmc;
359  render->info.vc1.range_mapy_flag = v->range_mapy_flag;
360  render->info.vc1.range_mapy = v->range_mapy;
361  render->info.vc1.range_mapuv_flag = v->range_mapuv_flag;
362  render->info.vc1.range_mapuv = v->range_mapuv;
363  /* Specific to simple/main profile only */
364  render->info.vc1.multires = v->multires;
365  render->info.vc1.syncmarker = v->s.resync_marker;
366  render->info.vc1.rangered = v->rangered | (v->rangeredfrm << 1);
367  render->info.vc1.maxbframes = v->s.max_b_frames;
368 
369  render->info.vc1.deblockEnable = v->postprocflag & 1;
370  render->info.vc1.pquant = v->pq;
371 
372  render->info.vc1.forward_reference = VDP_INVALID_HANDLE;
373  render->info.vc1.backward_reference = VDP_INVALID_HANDLE;
374 
375  if (v->bi_type)
376  render->info.vc1.picture_type = 4;
377  else
378  render->info.vc1.picture_type = s->pict_type - 1 + s->pict_type / 3;
379 
380  switch(s->pict_type){
381  case AV_PICTURE_TYPE_B:
382  next = (struct vdpau_render_state *)s->next_picture.f.data[0];
383  assert(next);
384  render->info.vc1.backward_reference = next->surface;
385  // no break here, going to set forward prediction
386  case AV_PICTURE_TYPE_P:
387  last = (struct vdpau_render_state *)s->last_picture.f.data[0];
388  if (!last) // FIXME: Does this test make sense?
389  last = render; // predict second field from the first
390  render->info.vc1.forward_reference = last->surface;
391  }
392 
393  ff_vdpau_add_data_chunk(s->current_picture_ptr->f.data[0], buf, buf_size);
394 
395  render->info.vc1.slice_count = 1;
396 
397  ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
398  render->bitstream_buffers_used = 0;
399 }
400 #endif /* (CONFIG_VC1_VDPAU_DECODER */
401 
402 #if CONFIG_MPEG4_VDPAU_DECODER
403 void ff_vdpau_mpeg4_decode_picture(MpegEncContext *s, const uint8_t *buf,
404  int buf_size)
405 {
406  struct vdpau_render_state *render, *last, *next;
407  int i;
408 
409  if (!s->current_picture_ptr) return;
410 
411  render = (struct vdpau_render_state *)s->current_picture_ptr->f.data[0];
412  assert(render);
413 
414  /* fill VdpPictureInfoMPEG4Part2 struct */
415  render->info.mpeg4.trd[0] = s->pp_time;
416  render->info.mpeg4.trb[0] = s->pb_time;
417  render->info.mpeg4.trd[1] = s->pp_field_time >> 1;
418  render->info.mpeg4.trb[1] = s->pb_field_time >> 1;
419  render->info.mpeg4.vop_time_increment_resolution = s->avctx->time_base.den;
420  render->info.mpeg4.vop_coding_type = 0;
421  render->info.mpeg4.vop_fcode_forward = s->f_code;
422  render->info.mpeg4.vop_fcode_backward = s->b_code;
423  render->info.mpeg4.resync_marker_disable = !s->resync_marker;
424  render->info.mpeg4.interlaced = !s->progressive_sequence;
425  render->info.mpeg4.quant_type = s->mpeg_quant;
426  render->info.mpeg4.quarter_sample = s->quarter_sample;
427  render->info.mpeg4.short_video_header = s->avctx->codec->id == AV_CODEC_ID_H263;
428  render->info.mpeg4.rounding_control = s->no_rounding;
429  render->info.mpeg4.alternate_vertical_scan_flag = s->alternate_scan;
430  render->info.mpeg4.top_field_first = s->top_field_first;
431  for (i = 0; i < 64; ++i) {
432  render->info.mpeg4.intra_quantizer_matrix[i] = s->intra_matrix[i];
433  render->info.mpeg4.non_intra_quantizer_matrix[i] = s->inter_matrix[i];
434  }
435  render->info.mpeg4.forward_reference = VDP_INVALID_HANDLE;
436  render->info.mpeg4.backward_reference = VDP_INVALID_HANDLE;
437 
438  switch (s->pict_type) {
439  case AV_PICTURE_TYPE_B:
440  next = (struct vdpau_render_state *)s->next_picture.f.data[0];
441  assert(next);
442  render->info.mpeg4.backward_reference = next->surface;
443  render->info.mpeg4.vop_coding_type = 2;
444  // no break here, going to set forward prediction
445  case AV_PICTURE_TYPE_P:
446  last = (struct vdpau_render_state *)s->last_picture.f.data[0];
447  assert(last);
448  render->info.mpeg4.forward_reference = last->surface;
449  }
450 
451  ff_vdpau_add_data_chunk(s->current_picture_ptr->f.data[0], buf, buf_size);
452 
453  ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
454  render->bitstream_buffers_used = 0;
455 }
456 #endif /* CONFIG_MPEG4_VDPAU_DECODER */
457 
458 /* @}*/
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