1 /******************************************************************************
2 *
3 * Copyright (C) 2015 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 *****************************************************************************
18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
19 */
20 /*!
21 **************************************************************************
22 * \file ih264d_parse_slice.c
23 *
24 * \brief
25 * Contains routines that decodes a slice NAL unit
26 *
27 * \date
28 * 19/12/2002
29 *
30 * \author AI
31 **************************************************************************
32 */
33 #include <string.h>
34 #include "ih264_typedefs.h"
35 #include "ih264_macros.h"
36 #include "ih264_platform_macros.h"
37 #include "ithread.h"
38 #include "ih264d_structs.h"
39 #include "ih264d_debug.h"
40 #include "ih264d_bitstrm.h"
41 #include "ih264d_parse_mb_header.h"
42 #include "ih264d_process_bslice.h"
43 #include "ih264d_process_pslice.h"
44 #include "ih264d_parse_cavlc.h"
45 #include "ih264d_utils.h"
46 #include "ih264d_deblocking.h"
47 #include "ih264d_defs.h"
48 #include "ih264d_error_handler.h"
49 #include "ih264d_tables.h"
50 #include "ih264d_defs.h"
51 #include "ih264d_mem_request.h"
52 #include "ih264d_parse_islice.h"
53 #include "ih264d_parse_slice.h"
54 #include "ih264d_mvpred.h"
55 #include "ih264d_mb_utils.h"
56
57 #include "ih264d_defs.h"
58 #include "ih264d_quant_scaling.h"
59
60 #include "ih264d_inter_pred.h"
61
62 #include "ih264d_sei.h"
63 #include "ih264d.h"
64 #include "ih264_error.h"
65 #include "ih264_disp_mgr.h"
66 #include "ih264_buf_mgr.h"
67
68 #include "ih264d_thread_parse_decode.h"
69 #include "ih264d_thread_compute_bs.h"
70 #include "ih264d_dpb_manager.h"
71 #include <assert.h>
72 #include "ih264d_parse_islice.h"
73 #define RET_LAST_SKIP 0x80000000
74
75 WORD32 check_app_out_buf_size(dec_struct_t *ps_dec);
76 /*!
77 **************************************************************************
78 * \if Function name : ih264d_form_pred_weight_matrix \endif
79 *
80 * \brief
81 * Forms pred weight matrix.
82 *
83 * \return
84 * None
85 *
86 **************************************************************************
87 */
88
ih264d_form_pred_weight_matrix(dec_struct_t * ps_dec)89 void ih264d_form_pred_weight_matrix(dec_struct_t *ps_dec)
90 {
91 dec_slice_params_t *ps_cur_slice;
92 UWORD8 uc_num_ref_idx_l0_active, uc_num_ref_idx_l1_active;
93 UWORD8 i, j;
94 UWORD32 *pu4_mat_iwt_ofst;
95 UWORD16 i2_idx;
96 UWORD32 *pui32_weight_offset_l0, *pui32_weight_offset_l1;
97 UWORD32 u4_temp;
98
99 ps_cur_slice = ps_dec->ps_cur_slice;
100 uc_num_ref_idx_l0_active = ps_cur_slice->u1_num_ref_idx_lx_active[0];
101 uc_num_ref_idx_l1_active = ps_cur_slice->u1_num_ref_idx_lx_active[1];
102
103 pu4_mat_iwt_ofst = ps_dec->pu4_wts_ofsts_mat;
104
105 if(ps_cur_slice->u1_slice_type == B_SLICE)
106 {
107 for(i = 0; i < uc_num_ref_idx_l0_active; i++)
108 {
109 pui32_weight_offset_l0 = ps_cur_slice->u4_wt_ofst_lx[0][i];
110 for(j = 0; j < uc_num_ref_idx_l1_active; j++)
111 {
112 pui32_weight_offset_l1 = ps_cur_slice->u4_wt_ofst_lx[1][j];
113 i2_idx = i * uc_num_ref_idx_l0_active + j;
114 i2_idx = X3(i2_idx);
115 /* u4_temp = (pui32_weight_offset_l0[0] | (pui32_weight_offset_l1[0] << 16));
116 pu4_mat_iwt_ofst[0] = u4_temp;
117 u4_temp = (pui32_weight_offset_l0[1] | (pui32_weight_offset_l1[1] << 16));
118 pu4_mat_iwt_ofst[1] = u4_temp;
119 u4_temp = (pui32_weight_offset_l0[2] | (pui32_weight_offset_l1[2] << 16));
120 pu4_mat_iwt_ofst[2] = u4_temp;
121 pu4_mat_iwt_ofst += 3;*/
122 pu4_mat_iwt_ofst[0] = pui32_weight_offset_l0[0];
123 pu4_mat_iwt_ofst[1] = pui32_weight_offset_l1[0];
124 pu4_mat_iwt_ofst[2] = pui32_weight_offset_l0[1];
125 pu4_mat_iwt_ofst[3] = pui32_weight_offset_l1[1];
126 pu4_mat_iwt_ofst[4] = pui32_weight_offset_l0[2];
127 pu4_mat_iwt_ofst[5] = pui32_weight_offset_l1[2];
128 pu4_mat_iwt_ofst += 6;
129 }
130 }
131 }
132 else
133 {
134 for(i = 0; i < uc_num_ref_idx_l0_active; i++)
135 {
136 pui32_weight_offset_l0 = ps_cur_slice->u4_wt_ofst_lx[0][i];
137 i2_idx = X3(i);
138 u4_temp = (UWORD32)pui32_weight_offset_l0[0];
139 pu4_mat_iwt_ofst[0] = u4_temp;
140 u4_temp = (UWORD32)pui32_weight_offset_l0[1];
141 pu4_mat_iwt_ofst[2] = u4_temp;
142 u4_temp = (UWORD32)pui32_weight_offset_l0[2];
143 pu4_mat_iwt_ofst[4] = u4_temp;
144 pu4_mat_iwt_ofst += 6;
145 }
146 }
147 }
148
149
150 /*!
151 **************************************************************************
152 * \if Function name : init_firstSliceParam \endif
153 *
154 * \brief
155 * Initialize the Parameter required for all the slices for a picture
156 *
157 * \return : Nothing
158 *
159 **************************************************************************
160 */
161
ih264d_start_of_pic(dec_struct_t * ps_dec,WORD32 i4_poc,pocstruct_t * ps_temp_poc,UWORD16 u2_frame_num,dec_pic_params_t * ps_pps)162 WORD32 ih264d_start_of_pic(dec_struct_t *ps_dec,
163 WORD32 i4_poc,
164 pocstruct_t *ps_temp_poc,
165 UWORD16 u2_frame_num,
166 dec_pic_params_t *ps_pps)
167 {
168 pocstruct_t *ps_prev_poc = &ps_dec->s_cur_pic_poc;
169 pocstruct_t *ps_cur_poc = ps_temp_poc;
170
171 pic_buffer_t *pic_buf;
172
173 ivd_video_decode_op_t * ps_dec_output =
174 (ivd_video_decode_op_t *)ps_dec->pv_dec_out;
175 dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice;
176 dec_seq_params_t *ps_seq = ps_pps->ps_sps;
177 UWORD8 u1_bottom_field_flag = ps_cur_slice->u1_bottom_field_flag;
178 UWORD8 u1_field_pic_flag = ps_cur_slice->u1_field_pic_flag;
179 /* high profile related declarations */
180 high_profile_tools_t s_high_profile;
181 WORD32 ret;
182
183 H264_MUTEX_LOCK(&ps_dec->process_disp_mutex);
184
185 /* check output buffer size given by the application */
186 if(check_app_out_buf_size(ps_dec) != IV_SUCCESS)
187 return IVD_DISP_FRM_ZERO_OP_BUF_SIZE;
188
189 ps_prev_poc->i4_pic_order_cnt_lsb = ps_cur_poc->i4_pic_order_cnt_lsb;
190 ps_prev_poc->i4_pic_order_cnt_msb = ps_cur_poc->i4_pic_order_cnt_msb;
191 ps_prev_poc->i4_delta_pic_order_cnt_bottom =
192 ps_cur_poc->i4_delta_pic_order_cnt_bottom;
193 ps_prev_poc->i4_delta_pic_order_cnt[0] =
194 ps_cur_poc->i4_delta_pic_order_cnt[0];
195 ps_prev_poc->i4_delta_pic_order_cnt[1] =
196 ps_cur_poc->i4_delta_pic_order_cnt[1];
197 ps_prev_poc->u1_bot_field = ps_dec->ps_cur_slice->u1_bottom_field_flag;
198 ps_prev_poc->i4_prev_frame_num_ofst = ps_cur_poc->i4_prev_frame_num_ofst;
199 ps_prev_poc->u2_frame_num = u2_frame_num;
200 ps_dec->i1_prev_mb_qp_delta = 0;
201 ps_dec->i1_next_ctxt_idx = 0;
202
203
204 ps_dec->u4_nmb_deblk = 0;
205 if(ps_dec->u4_num_cores == 1)
206 ps_dec->u4_nmb_deblk = 1;
207
208
209
210 if(ps_seq->u1_mb_aff_flag == 1)
211 {
212 ps_dec->u4_nmb_deblk = 0;
213 if(ps_dec->u4_num_cores > 2)
214 ps_dec->u4_num_cores = 2;
215 }
216
217 ps_dec->u4_use_intrapred_line_copy = 0;
218
219
220
221 if (ps_seq->u1_mb_aff_flag == 0)
222 {
223 ps_dec->u4_use_intrapred_line_copy = 1;
224 }
225
226 ps_dec->u4_app_disable_deblk_frm = 0;
227 /* If degrade is enabled, set the degrade flags appropriately */
228 if(ps_dec->i4_degrade_type && ps_dec->i4_degrade_pics)
229 {
230 WORD32 degrade_pic;
231 ps_dec->i4_degrade_pic_cnt++;
232 degrade_pic = 0;
233
234 /* If degrade is to be done in all frames, then do not check further */
235 switch(ps_dec->i4_degrade_pics)
236 {
237 case 4:
238 {
239 degrade_pic = 1;
240 break;
241 }
242 case 3:
243 {
244 if(ps_cur_slice->u1_slice_type != I_SLICE)
245 degrade_pic = 1;
246
247 break;
248 }
249 case 2:
250 {
251
252 /* If pic count hits non-degrade interval or it is an islice, then do not degrade */
253 if((ps_cur_slice->u1_slice_type != I_SLICE)
254 && (ps_dec->i4_degrade_pic_cnt
255 != ps_dec->i4_nondegrade_interval))
256 degrade_pic = 1;
257
258 break;
259 }
260 case 1:
261 {
262 /* Check if the current picture is non-ref */
263 if(0 == ps_cur_slice->u1_nal_ref_idc)
264 {
265 degrade_pic = 1;
266 }
267 break;
268 }
269
270 }
271 if(degrade_pic)
272 {
273 if(ps_dec->i4_degrade_type & 0x2)
274 ps_dec->u4_app_disable_deblk_frm = 1;
275
276 /* MC degrading is done only for non-ref pictures */
277 if(0 == ps_cur_slice->u1_nal_ref_idc)
278 {
279 if(ps_dec->i4_degrade_type & 0x4)
280 ps_dec->i4_mv_frac_mask = 0;
281
282 if(ps_dec->i4_degrade_type & 0x8)
283 ps_dec->i4_mv_frac_mask = 0;
284 }
285 }
286 else
287 ps_dec->i4_degrade_pic_cnt = 0;
288 }
289
290 {
291 dec_err_status_t * ps_err = ps_dec->ps_dec_err_status;
292 if((ps_cur_slice->u1_slice_type == I_SLICE)
293 || (ps_cur_slice->u1_slice_type == SI_SLICE))
294 ps_err->u1_cur_pic_type = PIC_TYPE_I;
295 else
296 ps_err->u1_cur_pic_type = PIC_TYPE_UNKNOWN;
297
298 if(ps_err->u1_pic_aud_i == PIC_TYPE_I)
299 {
300 ps_err->u1_cur_pic_type = PIC_TYPE_I;
301 ps_err->u1_pic_aud_i = PIC_TYPE_UNKNOWN;
302 }
303
304 if(ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL)
305 {
306 if(ps_err->u1_err_flag)
307 ih264d_reset_ref_bufs(ps_dec->ps_dpb_mgr);
308 ps_err->u1_err_flag = ACCEPT_ALL_PICS;
309 }
310 }
311
312 if(ps_dec->u1_init_dec_flag && ps_dec->s_prev_seq_params.u1_eoseq_pending)
313 {
314 /* Reset the decoder picture buffers */
315 WORD32 j;
316 for(j = 0; j < MAX_DISP_BUFS_NEW; j++)
317 {
318
319 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
320 j,
321 BUF_MGR_REF);
322 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
323 ps_dec->au1_pic_buf_id_mv_buf_id_map[j],
324 BUF_MGR_REF);
325 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
326 j,
327 BUF_MGR_IO);
328 }
329
330 /* reset the decoder structure parameters related to buffer handling */
331 ps_dec->u1_second_field = 0;
332 ps_dec->i4_cur_display_seq = 0;
333
334 /********************************************************************/
335 /* indicate in the decoder output i4_status that some frames are being */
336 /* dropped, so that it resets timestamp and wait for a new sequence */
337 /********************************************************************/
338
339 ps_dec->s_prev_seq_params.u1_eoseq_pending = 0;
340 }
341 ret = ih264d_init_pic(ps_dec, u2_frame_num, i4_poc, ps_pps);
342 if(ret != OK)
343 return ret;
344
345 ps_dec->pv_parse_tu_coeff_data = ps_dec->pv_pic_tu_coeff_data;
346 ps_dec->pv_proc_tu_coeff_data = ps_dec->pv_pic_tu_coeff_data;
347 ps_dec->ps_nmb_info = ps_dec->ps_frm_mb_info;
348 if(ps_dec->u1_separate_parse)
349 {
350 UWORD16 pic_wd;
351 UWORD16 pic_ht;
352 UWORD32 num_mbs;
353
354 pic_wd = ps_dec->u2_pic_wd;
355 pic_ht = ps_dec->u2_pic_ht;
356 num_mbs = (pic_wd * pic_ht) >> 8;
357
358 if(ps_dec->pu1_dec_mb_map)
359 {
360 memset((void *)ps_dec->pu1_dec_mb_map, 0, num_mbs);
361 }
362
363 if(ps_dec->pu1_recon_mb_map)
364 {
365
366 memset((void *)ps_dec->pu1_recon_mb_map, 0, num_mbs);
367 }
368
369 if(ps_dec->pu2_slice_num_map)
370 {
371 memset((void *)ps_dec->pu2_slice_num_map, 0,
372 (num_mbs * sizeof(UWORD16)));
373 }
374
375 }
376
377 ps_dec->ps_parse_cur_slice = &(ps_dec->ps_dec_slice_buf[0]);
378 ps_dec->ps_decode_cur_slice = &(ps_dec->ps_dec_slice_buf[0]);
379 ps_dec->ps_computebs_cur_slice = &(ps_dec->ps_dec_slice_buf[0]);
380 ps_dec->u2_cur_slice_num = 0;
381
382 /* Initialize all the HP toolsets to zero */
383 ps_dec->s_high_profile.u1_scaling_present = 0;
384 ps_dec->s_high_profile.u1_transform8x8_present = 0;
385
386 /* Get Next Free Picture */
387 if(1 == ps_dec->u4_share_disp_buf)
388 {
389 UWORD32 i;
390 /* Free any buffer that is in the queue to be freed */
391 for(i = 0; i < MAX_DISP_BUFS_NEW; i++)
392 {
393 if(0 == ps_dec->u4_disp_buf_to_be_freed[i])
394 continue;
395 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr, i,
396 BUF_MGR_IO);
397 ps_dec->u4_disp_buf_to_be_freed[i] = 0;
398 ps_dec->u4_disp_buf_mapping[i] = 0;
399
400 }
401 }
402 if(!(u1_field_pic_flag && 0 != ps_dec->u1_top_bottom_decoded)) //ps_dec->u1_second_field))
403 {
404 pic_buffer_t *ps_cur_pic;
405 WORD32 cur_pic_buf_id, cur_mv_buf_id;
406 col_mv_buf_t *ps_col_mv;
407 while(1)
408 {
409 ps_cur_pic = (pic_buffer_t *)ih264_buf_mgr_get_next_free(
410 (buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
411 &cur_pic_buf_id);
412 if(ps_cur_pic == NULL)
413 {
414 ps_dec->i4_error_code = ERROR_UNAVAIL_PICBUF_T;
415 return ERROR_UNAVAIL_PICBUF_T;
416 }
417 if(0 == ps_dec->u4_disp_buf_mapping[cur_pic_buf_id])
418 {
419 break;
420 }
421
422 }
423 ps_col_mv = (col_mv_buf_t *)ih264_buf_mgr_get_next_free((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
424 &cur_mv_buf_id);
425 if(ps_col_mv == NULL)
426 {
427 ps_dec->i4_error_code = ERROR_UNAVAIL_MVBUF_T;
428 return ERROR_UNAVAIL_MVBUF_T;
429 }
430
431 ps_dec->ps_cur_pic = ps_cur_pic;
432 ps_dec->u1_pic_buf_id = cur_pic_buf_id;
433 ps_cur_pic->u4_ts = ps_dec->u4_ts;
434
435
436 ps_cur_pic->u1_mv_buf_id = cur_mv_buf_id;
437 ps_dec->au1_pic_buf_id_mv_buf_id_map[cur_pic_buf_id] = cur_mv_buf_id;
438
439 ps_cur_pic->pu1_col_zero_flag = (UWORD8 *)ps_col_mv->pv_col_zero_flag;
440 ps_cur_pic->ps_mv = (mv_pred_t *)ps_col_mv->pv_mv;
441 ps_dec->au1_pic_buf_ref_flag[cur_pic_buf_id] = 0;
442
443 {
444 /*make first entry of list0 and list1 point to cur pic,
445 *so that if first slice is in error, ref pic struct will have valid entries*/
446 ps_dec->ps_ref_pic_buf_lx[0] = ps_dec->ps_dpb_mgr->ps_init_dpb[0];
447 ps_dec->ps_ref_pic_buf_lx[1] = ps_dec->ps_dpb_mgr->ps_init_dpb[1];
448 *(ps_dec->ps_dpb_mgr->ps_init_dpb[0][0]) = *ps_cur_pic;
449 /* Initialize for field reference as well */
450 *(ps_dec->ps_dpb_mgr->ps_init_dpb[0][MAX_REF_BUFS]) = *ps_cur_pic;
451
452 *(ps_dec->ps_dpb_mgr->ps_mod_dpb[0][0]) = *ps_cur_pic;
453 /* Initialize for field reference as well */
454 *(ps_dec->ps_dpb_mgr->ps_mod_dpb[0][MAX_REF_BUFS]) = *ps_cur_pic;
455 *(ps_dec->ps_dpb_mgr->ps_init_dpb[1][0]) = *ps_cur_pic;
456 /* Initialize for field reference as well */
457 *(ps_dec->ps_dpb_mgr->ps_init_dpb[1][MAX_REF_BUFS]) = *ps_cur_pic;
458 *(ps_dec->ps_dpb_mgr->ps_mod_dpb[1][0]) = *ps_cur_pic;
459 /* Initialize for field reference as well */
460 *(ps_dec->ps_dpb_mgr->ps_mod_dpb[1][MAX_REF_BUFS]) = *ps_cur_pic;
461 }
462
463 if(!ps_dec->ps_cur_pic)
464 {
465 WORD32 j;
466 H264_DEC_DEBUG_PRINT("------- Display Buffers Reset --------\n");
467 for(j = 0; j < MAX_DISP_BUFS_NEW; j++)
468 {
469
470 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
471 j,
472 BUF_MGR_REF);
473 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
474 ps_dec->au1_pic_buf_id_mv_buf_id_map[j],
475 BUF_MGR_REF);
476 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
477 j,
478 BUF_MGR_IO);
479 }
480
481 ps_dec->i4_cur_display_seq = 0;
482 ps_dec->i4_prev_max_display_seq = 0;
483 ps_dec->i4_max_poc = 0;
484
485 ps_cur_pic = (pic_buffer_t *)ih264_buf_mgr_get_next_free(
486 (buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
487 &cur_pic_buf_id);
488 if(ps_cur_pic == NULL)
489 {
490 ps_dec->i4_error_code = ERROR_UNAVAIL_PICBUF_T;
491 return ERROR_UNAVAIL_PICBUF_T;
492 }
493
494 ps_col_mv = (col_mv_buf_t *)ih264_buf_mgr_get_next_free((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
495 &cur_mv_buf_id);
496 if(ps_col_mv == NULL)
497 {
498 ps_dec->i4_error_code = ERROR_UNAVAIL_MVBUF_T;
499 return ERROR_UNAVAIL_MVBUF_T;
500 }
501
502 ps_dec->ps_cur_pic = ps_cur_pic;
503 ps_dec->u1_pic_buf_id = cur_pic_buf_id;
504 ps_cur_pic->u4_ts = ps_dec->u4_ts;
505 ps_dec->apv_buf_id_pic_buf_map[cur_pic_buf_id] = (void *)ps_cur_pic;
506
507 ps_cur_pic->u1_mv_buf_id = cur_mv_buf_id;
508 ps_dec->au1_pic_buf_id_mv_buf_id_map[cur_pic_buf_id] = cur_mv_buf_id;
509
510 ps_cur_pic->pu1_col_zero_flag = (UWORD8 *)ps_col_mv->pv_col_zero_flag;
511 ps_cur_pic->ps_mv = (mv_pred_t *)ps_col_mv->pv_mv;
512 ps_dec->au1_pic_buf_ref_flag[cur_pic_buf_id] = 0;
513
514 }
515
516 ps_dec->ps_cur_pic->u1_picturetype = u1_field_pic_flag;
517 ps_dec->ps_cur_pic->u4_pack_slc_typ = SKIP_NONE;
518 H264_DEC_DEBUG_PRINT("got a buffer\n");
519 }
520 else
521 {
522 H264_DEC_DEBUG_PRINT("did not get a buffer\n");
523 }
524
525 ps_dec->u4_pic_buf_got = 1;
526
527 ps_dec->ps_cur_pic->i4_poc = i4_poc;
528 ps_dec->ps_cur_pic->i4_frame_num = u2_frame_num;
529 ps_dec->ps_cur_pic->i4_pic_num = u2_frame_num;
530 ps_dec->ps_cur_pic->i4_top_field_order_cnt = ps_pps->i4_top_field_order_cnt;
531 ps_dec->ps_cur_pic->i4_bottom_field_order_cnt =
532 ps_pps->i4_bottom_field_order_cnt;
533 ps_dec->ps_cur_pic->i4_avg_poc = ps_pps->i4_avg_poc;
534 ps_dec->ps_cur_pic->u4_time_stamp = ps_dec->u4_pts;
535
536 ps_dec->s_cur_pic = *(ps_dec->ps_cur_pic);
537 if(u1_field_pic_flag && u1_bottom_field_flag)
538 {
539 WORD32 i4_temp_poc;
540 WORD32 i4_top_field_order_poc, i4_bot_field_order_poc;
541 /* Point to odd lines, since it's bottom field */
542 ps_dec->s_cur_pic.pu1_buf1 += ps_dec->s_cur_pic.u2_frm_wd_y;
543 ps_dec->s_cur_pic.pu1_buf2 += ps_dec->s_cur_pic.u2_frm_wd_uv;
544 ps_dec->s_cur_pic.pu1_buf3 += ps_dec->s_cur_pic.u2_frm_wd_uv;
545 ps_dec->s_cur_pic.ps_mv +=
546 ((ps_dec->u2_pic_ht * ps_dec->u2_pic_wd) >> 5);
547 ps_dec->s_cur_pic.pu1_col_zero_flag += ((ps_dec->u2_pic_ht
548 * ps_dec->u2_pic_wd) >> 5);
549 ps_dec->ps_cur_pic->u1_picturetype |= BOT_FLD;
550 i4_top_field_order_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt;
551 i4_bot_field_order_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt;
552 i4_temp_poc = MIN(i4_top_field_order_poc,
553 i4_bot_field_order_poc);
554 ps_dec->ps_cur_pic->i4_avg_poc = i4_temp_poc;
555 }
556
557 ps_cur_slice->u1_mbaff_frame_flag = ps_seq->u1_mb_aff_flag
558 && (!u1_field_pic_flag);
559
560 ps_dec->ps_cur_pic->u1_picturetype |= (ps_cur_slice->u1_mbaff_frame_flag
561 << 2);
562
563 ps_dec->ps_cur_mb_row = ps_dec->ps_nbr_mb_row; //[0];
564 //Increment by 2 ,so that left mb (mbaff decrements by 2) will always be valid
565 ps_dec->ps_cur_mb_row += 2;
566 ps_dec->ps_top_mb_row = ps_dec->ps_nbr_mb_row;
567 ps_dec->ps_top_mb_row += ((ps_dec->u2_frm_wd_in_mbs + 2) << (1 - ps_dec->ps_cur_sps->u1_frame_mbs_only_flag));
568 //Increment by 2 ,so that left mb (mbaff decrements by 2) will always be valid
569 ps_dec->ps_top_mb_row += 2;
570
571 /* CHANGED CODE */
572 ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv;
573 ps_dec->ps_mv_top = ps_dec->ps_mv_top_p[0];
574 /* CHANGED CODE */
575 ps_dec->u1_mv_top_p = 0;
576 ps_dec->u1_mb_idx = 0;
577 /* CHANGED CODE */
578 ps_dec->ps_mv_left = ps_dec->s_cur_pic.ps_mv;
579 ps_dec->u2_total_mbs_coded = 0;
580 ps_dec->i4_submb_ofst = -(SUB_BLK_SIZE);
581 ps_dec->u4_pred_info_idx = 0;
582 ps_dec->u4_pred_info_pkd_idx = 0;
583 ps_dec->u4_dma_buf_idx = 0;
584 ps_dec->ps_mv = ps_dec->s_cur_pic.ps_mv;
585 ps_dec->ps_mv_bank_cur = ps_dec->s_cur_pic.ps_mv;
586 ps_dec->pu1_col_zero_flag = ps_dec->s_cur_pic.pu1_col_zero_flag;
587 ps_dec->ps_part = ps_dec->ps_parse_part_params;
588 ps_dec->i2_prev_slice_mbx = -1;
589 ps_dec->i2_prev_slice_mby = 0;
590 ps_dec->u2_mv_2mb[0] = 0;
591 ps_dec->u2_mv_2mb[1] = 0;
592 ps_dec->u1_last_pic_not_decoded = 0;
593
594 ps_dec->u2_cur_slice_num_dec_thread = 0;
595 ps_dec->u2_cur_slice_num_bs = 0;
596 ps_dec->u4_intra_pred_line_ofst = 0;
597 ps_dec->pu1_cur_y_intra_pred_line = ps_dec->pu1_y_intra_pred_line;
598 ps_dec->pu1_cur_u_intra_pred_line = ps_dec->pu1_u_intra_pred_line;
599 ps_dec->pu1_cur_v_intra_pred_line = ps_dec->pu1_v_intra_pred_line;
600
601 ps_dec->pu1_cur_y_intra_pred_line_base = ps_dec->pu1_y_intra_pred_line;
602 ps_dec->pu1_cur_u_intra_pred_line_base = ps_dec->pu1_u_intra_pred_line;
603 ps_dec->pu1_cur_v_intra_pred_line_base = ps_dec->pu1_v_intra_pred_line;
604
605
606
607
608
609 ps_dec->pu1_prev_y_intra_pred_line = ps_dec->pu1_y_intra_pred_line
610 + (ps_dec->u2_frm_wd_in_mbs * MB_SIZE);
611
612 ps_dec->pu1_prev_u_intra_pred_line = ps_dec->pu1_u_intra_pred_line
613 + ps_dec->u2_frm_wd_in_mbs * BLK8x8SIZE * YUV420SP_FACTOR;
614 ps_dec->pu1_prev_v_intra_pred_line = ps_dec->pu1_v_intra_pred_line
615 + ps_dec->u2_frm_wd_in_mbs * BLK8x8SIZE;
616
617 ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic;
618 /* Initialize The Function Pointer Depending Upon the Entropy and MbAff Flag */
619 {
620 if(ps_cur_slice->u1_mbaff_frame_flag)
621 {
622 ps_dec->pf_compute_bs = ih264d_compute_bs_mbaff;
623 ps_dec->pf_mvpred = ih264d_mvpred_mbaff;
624 }
625 else
626 {
627 ps_dec->pf_compute_bs = ih264d_compute_bs_non_mbaff;
628 ps_dec->u1_cur_mb_fld_dec_flag = ps_cur_slice->u1_field_pic_flag;
629 }
630 }
631 /* Set up the Parameter for DMA transfer */
632 {
633 UWORD8 u1_field_pic_flag = ps_dec->ps_cur_slice->u1_field_pic_flag;
634
635 UWORD8 u1_mbaff = ps_cur_slice->u1_mbaff_frame_flag;
636
637 UWORD8 uc_lastmbs = (((ps_dec->u2_pic_wd) >> 4)
638 % (ps_dec->u1_recon_mb_grp >> u1_mbaff));
639 UWORD16 ui16_lastmbs_widthY =
640 (uc_lastmbs ? (uc_lastmbs << 4) : ((ps_dec->u1_recon_mb_grp
641 >> u1_mbaff) << 4));
642 UWORD16 ui16_lastmbs_widthUV =
643 uc_lastmbs ? (uc_lastmbs << 3) : ((ps_dec->u1_recon_mb_grp
644 >> u1_mbaff) << 3);
645
646 ps_dec->s_tran_addrecon.pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1;
647 ps_dec->s_tran_addrecon.pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2;
648 ps_dec->s_tran_addrecon.pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3;
649
650 ps_dec->s_tran_addrecon.u2_frm_wd_y = ps_dec->u2_frm_wd_y
651 << u1_field_pic_flag;
652 ps_dec->s_tran_addrecon.u2_frm_wd_uv = ps_dec->u2_frm_wd_uv
653 << u1_field_pic_flag;
654
655 if(u1_field_pic_flag)
656 {
657 ui16_lastmbs_widthY += ps_dec->u2_frm_wd_y;
658 ui16_lastmbs_widthUV += ps_dec->u2_frm_wd_uv;
659 }
660
661 /* Normal Increment of Pointer */
662 ps_dec->s_tran_addrecon.u4_inc_y[0] = ((ps_dec->u1_recon_mb_grp << 4)
663 >> u1_mbaff);
664 ps_dec->s_tran_addrecon.u4_inc_uv[0] = ((ps_dec->u1_recon_mb_grp << 4)
665 >> u1_mbaff);
666
667 /* End of Row Increment */
668 ps_dec->s_tran_addrecon.u4_inc_y[1] = (ui16_lastmbs_widthY
669 + (PAD_LEN_Y_H << 1)
670 + ps_dec->s_tran_addrecon.u2_frm_wd_y
671 * ((15 << u1_mbaff) + u1_mbaff));
672 ps_dec->s_tran_addrecon.u4_inc_uv[1] = (ui16_lastmbs_widthUV
673 + (PAD_LEN_UV_H << 2)
674 + ps_dec->s_tran_addrecon.u2_frm_wd_uv
675 * ((15 << u1_mbaff) + u1_mbaff));
676
677 /* Assign picture numbers to each frame/field */
678 /* only once per picture. */
679 ih264d_assign_pic_num(ps_dec);
680 ps_dec->s_tran_addrecon.u2_mv_top_left_inc = (ps_dec->u1_recon_mb_grp
681 << 2) - 1 - (u1_mbaff << 2);
682 ps_dec->s_tran_addrecon.u2_mv_left_inc = ((ps_dec->u1_recon_mb_grp
683 >> u1_mbaff) - 1) << (4 + u1_mbaff);
684 }
685 /**********************************************************************/
686 /* High profile related initialization at pictrue level */
687 /**********************************************************************/
688 if(ps_seq->u1_profile_idc == HIGH_PROFILE_IDC)
689 {
690 if((ps_seq->i4_seq_scaling_matrix_present_flag)
691 || (ps_pps->i4_pic_scaling_matrix_present_flag))
692 {
693 ret = ih264d_form_scaling_matrix_picture(ps_seq, ps_pps, ps_dec);
694 ps_dec->s_high_profile.u1_scaling_present = 1;
695 }
696 else
697 {
698 ret = ih264d_form_default_scaling_matrix(ps_dec);
699 }
700
701 if(ps_pps->i4_transform_8x8_mode_flag)
702 {
703 ps_dec->s_high_profile.u1_transform8x8_present = 1;
704 }
705 }
706 else
707 {
708 ret = ih264d_form_default_scaling_matrix(ps_dec);
709 }
710
711 if(ret != OK)
712 return ret;
713
714 /* required while reading the transform_size_8x8 u4_flag */
715 ps_dec->s_high_profile.u1_direct_8x8_inference_flag =
716 ps_seq->u1_direct_8x8_inference_flag;
717 ps_dec->s_high_profile.s_cavlc_ctxt = ps_dec->s_cavlc_ctxt;
718
719 ps_dec->i1_recon_in_thread3_flag = 1;
720 ps_dec->ps_frame_buf_ip_recon = &ps_dec->s_tran_addrecon;
721 if(ps_dec->u1_separate_parse)
722 {
723 memcpy(&ps_dec->s_tran_addrecon_parse, &ps_dec->s_tran_addrecon,
724 sizeof(tfr_ctxt_t));
725 if(ps_dec->u4_num_cores >= 3 && ps_dec->i1_recon_in_thread3_flag)
726 {
727 memcpy(&ps_dec->s_tran_iprecon, &ps_dec->s_tran_addrecon,
728 sizeof(tfr_ctxt_t));
729 ps_dec->ps_frame_buf_ip_recon = &ps_dec->s_tran_iprecon;
730 }
731 }
732
733
734 ih264d_init_deblk_tfr_ctxt(ps_dec,&(ps_dec->s_pad_mgr), &(ps_dec->s_tran_addrecon),
735 ps_dec->u2_frm_wd_in_mbs, 0);
736
737 ps_dec->ps_cur_deblk_mb = ps_dec->ps_deblk_pic;
738 ps_dec->u4_cur_deblk_mb_num = 0;
739
740 ps_dec->u4_deblk_mb_x = 0;
741 ps_dec->u4_deblk_mb_y = 0;
742 ps_dec->pu4_wt_ofsts = ps_dec->pu4_wts_ofsts_mat;
743
744 ps_dec->u4_first_slice_in_pic = 0;
745 H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex);
746 return OK;
747 }
748
749 /*!
750 **************************************************************************
751 * \if Function name : ih264d_deblock_display \endif
752 *
753 * \brief : The function callls the deblocking routine and manages
754 : the Recon buffers and displays .
755 * \return : Nothing
756 *
757 **************************************************************************
758 */
ih264d_end_of_pic_dispbuf_mgr(dec_struct_t * ps_dec)759 WORD32 ih264d_end_of_pic_dispbuf_mgr(dec_struct_t * ps_dec)
760 {
761 dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice;
762 UWORD8 u1_num_of_users = 0;
763 WORD32 ret;
764
765 H264_MUTEX_LOCK(&ps_dec->process_disp_mutex);
766 if(1)
767 {
768
769 {
770 ih264d_delete_nonref_nondisplay_pics(ps_dec->ps_dpb_mgr);
771 if(ps_cur_slice->u1_mmco_equalto5
772 || (ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL))
773 {
774 ps_dec->ps_cur_pic->i4_poc = 0;
775 if(ps_dec->u2_total_mbs_coded
776 == (ps_dec->ps_cur_sps->u2_max_mb_addr + 1))
777 ih264d_reset_ref_bufs(ps_dec->ps_dpb_mgr);
778 ih264d_release_display_bufs(ps_dec);
779 }
780 if(IVD_DECODE_FRAME_OUT != ps_dec->e_frm_out_mode)
781 {
782 ret = ih264d_assign_display_seq(ps_dec);
783 if(ret != OK)
784 return ret;
785 }
786 }
787
788 if(ps_cur_slice->u1_nal_ref_idc)
789 {
790 /* Mark pic buf as needed for reference */
791 ih264_buf_mgr_set_status((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
792 ps_dec->u1_pic_buf_id,
793 BUF_MGR_REF);
794 /* Mark mv buf as needed for reference */
795 ih264_buf_mgr_set_status((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
796 ps_dec->au1_pic_buf_id_mv_buf_id_map[ps_dec->u1_pic_buf_id],
797 BUF_MGR_REF);
798 ps_dec->au1_pic_buf_ref_flag[ps_dec->u1_pic_buf_id] = 1;
799 }
800
801 /* 420 consumer */
802 /* Increment the number of users by 1 for display based upon */
803 /*the SEEK KEY FRAME control sent to decoder */
804 if(((0 == ps_dec->u1_last_pic_not_decoded)
805 && (0
806 == (ps_dec->ps_cur_pic->u4_pack_slc_typ
807 & ps_dec->u4_skip_frm_mask)))
808 || (ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL))
809 {
810 /* Mark pic buf as needed for display */
811 ih264_buf_mgr_set_status((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
812 ps_dec->u1_pic_buf_id,
813 BUF_MGR_IO);
814
815 }
816
817 if(!ps_cur_slice->u1_field_pic_flag
818 || ((TOP_FIELD_ONLY | BOT_FIELD_ONLY)
819 != ps_dec->u1_top_bottom_decoded))
820 {
821 pic_buffer_t *ps_cur_pic = ps_dec->ps_cur_pic;
822 ps_cur_pic->u2_disp_width = ps_dec->u2_disp_width;
823 ps_cur_pic->u2_disp_height = ps_dec->u2_disp_height >> 1;
824
825 ps_cur_pic->u2_crop_offset_y = ps_dec->u2_crop_offset_y;
826 ps_cur_pic->u2_crop_offset_uv = ps_dec->u2_crop_offset_uv;
827 ps_cur_pic->u1_pic_type = 0;
828
829 ret = ih264d_insert_pic_in_display_list(
830 ps_dec->ps_dpb_mgr,
831 ps_dec->u1_pic_buf_id,
832 ps_dec->i4_prev_max_display_seq
833 + ps_dec->ps_cur_pic->i4_poc,
834 ps_dec->ps_cur_pic->i4_frame_num);
835 if(ret != OK)
836 return ret;
837
838 {
839 ivd_video_decode_op_t * ps_dec_output =
840 (ivd_video_decode_op_t *)ps_dec->pv_dec_out;
841
842 ps_dec_output->u4_frame_decoded_flag = 1;
843 }
844 if(ps_dec->au1_pic_buf_ref_flag[ps_dec->u1_pic_buf_id] == 0)
845 {
846 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
847 ps_dec->au1_pic_buf_id_mv_buf_id_map[ps_dec->u1_pic_buf_id],
848 BUF_MGR_REF);
849 ps_dec->au1_pic_buf_ref_flag[ps_dec->u1_pic_buf_id] = 0;
850
851 }
852 }
853 else
854 {
855 H264_DEC_DEBUG_PRINT("pic not inserted display %d %d\n",
856 ps_cur_slice->u1_field_pic_flag,
857 ps_dec->u1_second_field);
858 }
859
860 if(!ps_cur_slice->u1_field_pic_flag
861 || ((TOP_FIELD_ONLY | BOT_FIELD_ONLY)
862 == ps_dec->u1_top_bottom_decoded))
863 {
864 if(IVD_DECODE_FRAME_OUT == ps_dec->e_frm_out_mode)
865 {
866 ret = ih264d_assign_display_seq(ps_dec);
867 if(ret != OK)
868 return ret;
869 }
870 }
871 }
872
873 H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex);
874
875 return OK;
876 }
877
ih264d_err_pic_dispbuf_mgr(dec_struct_t * ps_dec)878 void ih264d_err_pic_dispbuf_mgr(dec_struct_t *ps_dec)
879 {
880 dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice;
881 ivd_video_decode_op_t * ps_dec_output =
882 (ivd_video_decode_op_t *)ps_dec->pv_dec_out;
883
884 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
885 ps_dec->u1_pic_buf_id,
886 BUF_MGR_REF);
887 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
888 ps_dec->au1_pic_buf_id_mv_buf_id_map[ps_dec->u1_pic_buf_id],
889 BUF_MGR_REF);
890 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
891 ps_dec->u1_pic_buf_id,
892 BUF_MGR_IO);
893 }
894
ih264d_deblock_picture(void * ptr)895 void ih264d_deblock_picture(void *ptr)
896 {
897 dec_struct_t *ps_dec = (dec_struct_t *)ptr;
898
899 {
900 /*Deblock picture only if all the mb's in the frame have been decoded*/
901 if(ps_dec->u1_pic_decode_done == 1)
902 {
903 if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag
904 || ps_dec->ps_cur_slice->u1_field_pic_flag)
905 {
906 ps_dec->p_DeblockPicture[ps_dec->ps_cur_slice->u1_mbaff_frame_flag](
907 ps_dec);
908 }
909 else
910
911 {
912
913 ih264d_deblock_picture_progressive(ps_dec);
914 }
915
916 }
917 }
918
919 }
920
921 /*!
922 **************************************************************************
923 * \if Function name : ih264d_deblock_display \endif
924 *
925 * \brief : The function callls the deblocking routine and manages
926 : the Recon buffers and displays .
927 * \return : Nothing
928 *
929 **************************************************************************
930 */
ih264d_deblock_display(dec_struct_t * ps_dec)931 WORD32 ih264d_deblock_display(dec_struct_t *ps_dec)
932 {
933 WORD32 ret;
934 /* Call deblocking */
935 ih264d_deblock_picture(ps_dec);
936
937 ret = ih264d_end_of_pic_dispbuf_mgr(ps_dec);
938 if(ret != OK)
939 return ret;
940
941 return OK;
942 }
943
944 /*
945 *!
946 **************************************************************************
947 * \if Function name : EndofPoc \endif
948 *
949 * \brief
950 * EndofPoc Processing
951 *
952 * \return
953 * 0 on Success and Error code otherwise
954 **************************************************************************
955 */
956
ih264d_end_of_pic(dec_struct_t * ps_dec)957 WORD32 ih264d_end_of_pic(dec_struct_t *ps_dec)
958 {
959 dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice;
960 WORD32 ret;
961
962 {
963 dec_err_status_t * ps_err = ps_dec->ps_dec_err_status;
964 if(ps_err->u1_err_flag & REJECT_CUR_PIC)
965 {
966 ih264d_err_pic_dispbuf_mgr(ps_dec);
967 return ERROR_NEW_FRAME_EXPECTED;
968 }
969 }
970
971 H264_MUTEX_LOCK(&ps_dec->process_disp_mutex);
972 ret = ih264d_end_of_pic_processing(ps_dec);
973 if(ret != OK)
974 return ret;
975 /*--------------------------------------------------------------------*/
976 /* ih264d_decode_pic_order_cnt - calculate the Pic Order Cnt */
977 /* Needed to detect end of picture */
978 /*--------------------------------------------------------------------*/
979
980 H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex);
981
982 return OK;
983 }
984
985
986 /*!
987 **************************************************************************
988 * \if Function name : ih264d_fix_error_in_dpb \endif
989 *
990 * \brief
991 * fix error in DPB
992 *
993 * \return
994 * Number of node(s) deleted
995 **************************************************************************
996 */
997
ih264d_fix_error_in_dpb(dec_struct_t * ps_dec)998 WORD32 ih264d_fix_error_in_dpb(dec_struct_t *ps_dec)
999 {
1000 /*--------------------------------------------------------------------*/
1001 /* If there is common node in lt_list and st_list then delete it from */
1002 /* st_list */
1003 /*--------------------------------------------------------------------*/
1004 UWORD8 no_of_nodes_deleted = 0;
1005 UWORD8 lt_ref_num = ps_dec->ps_dpb_mgr->u1_num_lt_ref_bufs;
1006 struct dpb_info_t *ps_lt_curr_dpb = ps_dec->ps_dpb_mgr->ps_dpb_ht_head;
1007 while(lt_ref_num && ps_lt_curr_dpb)
1008 {
1009 if(ps_dec->ps_dpb_mgr->ps_dpb_st_head
1010 && ((ps_lt_curr_dpb->s_bot_field.u1_reference_info
1011 | ps_lt_curr_dpb->s_top_field.u1_reference_info)
1012 == (IS_SHORT_TERM | IS_LONG_TERM)))
1013 {
1014 struct dpb_info_t *ps_st_next_dpb = ps_dec->ps_dpb_mgr->ps_dpb_st_head;
1015 struct dpb_info_t *ps_st_curr_dpb = ps_dec->ps_dpb_mgr->ps_dpb_st_head;
1016 UWORD8 st_ref_num = ps_dec->ps_dpb_mgr->u1_num_st_ref_bufs;
1017 while(st_ref_num && ps_st_curr_dpb)
1018 {
1019 if(ps_st_curr_dpb == ps_lt_curr_dpb)
1020 {
1021 if(st_ref_num == ps_dec->ps_dpb_mgr->u1_num_st_ref_bufs)
1022 {
1023 ps_dec->ps_dpb_mgr->ps_dpb_st_head =
1024 ps_dec->ps_dpb_mgr->ps_dpb_st_head->ps_prev_short;
1025 ps_st_curr_dpb = ps_dec->ps_dpb_mgr->ps_dpb_st_head;
1026 }
1027 else
1028 {
1029 ps_st_next_dpb->ps_prev_short = ps_st_curr_dpb->ps_prev_short;
1030 }
1031 ps_dec->ps_dpb_mgr->u1_num_st_ref_bufs--;
1032 ps_dec->ps_dpb_mgr->u1_num_lt_ref_bufs++;
1033 no_of_nodes_deleted++;
1034 break;
1035 }
1036 ps_st_next_dpb = ps_st_curr_dpb;
1037 ps_st_curr_dpb = ps_st_curr_dpb->ps_prev_short;
1038 st_ref_num--;
1039 }
1040 }
1041 ps_lt_curr_dpb = ps_lt_curr_dpb->ps_prev_long;
1042 lt_ref_num--;
1043 }
1044 return no_of_nodes_deleted;
1045 }
1046
1047
1048 /*!
1049 **************************************************************************
1050 * \if Function name : DecodeSlice \endif
1051 *
1052 * \brief
1053 * Parses a slice
1054 *
1055 * \return
1056 * 0 on Success and Error code otherwise
1057 **************************************************************************
1058 */
1059
ih264d_parse_decode_slice(UWORD8 u1_is_idr_slice,UWORD8 u1_nal_ref_idc,dec_struct_t * ps_dec)1060 WORD32 ih264d_parse_decode_slice(UWORD8 u1_is_idr_slice,
1061 UWORD8 u1_nal_ref_idc,
1062 dec_struct_t *ps_dec /* Decoder parameters */
1063 )
1064 {
1065 dec_bit_stream_t * ps_bitstrm = ps_dec->ps_bitstrm;
1066 dec_pic_params_t *ps_pps;
1067 dec_seq_params_t *ps_seq;
1068 dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice;
1069 pocstruct_t s_tmp_poc = {0};
1070 WORD32 i_delta_poc[2];
1071 WORD32 i4_poc = 0;
1072 UWORD16 u2_first_mb_in_slice, u2_frame_num;
1073 UWORD8 u1_field_pic_flag, u1_redundant_pic_cnt = 0, u1_slice_type;
1074 UWORD32 u4_idr_pic_id = 0;
1075 UWORD8 u1_bottom_field_flag, u1_pic_order_cnt_type;
1076
1077 UWORD8 u1_nal_unit_type;
1078 UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
1079 UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
1080 WORD8 i1_is_end_of_poc;
1081
1082 WORD32 ret, end_of_frame;
1083 WORD32 prev_slice_err, num_mb_skipped;
1084 UWORD8 u1_mbaff;
1085 pocstruct_t *ps_cur_poc;
1086
1087 UWORD32 u4_temp;
1088 WORD32 i_temp;
1089 UWORD32 u4_call_end_of_pic = 0;
1090
1091 /* read FirstMbInSlice and slice type*/
1092 ps_dec->ps_dpb_cmds->u1_dpb_commands_read_slc = 0;
1093 u2_first_mb_in_slice = ih264d_uev(pu4_bitstrm_ofst,
1094 pu4_bitstrm_buf);
1095 if(u2_first_mb_in_slice
1096 > (ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs))
1097 {
1098
1099 return ERROR_CORRUPTED_SLICE;
1100 }
1101
1102 /*we currently don not support ASO*/
1103 if(((u2_first_mb_in_slice << ps_cur_slice->u1_mbaff_frame_flag)
1104 <= ps_dec->u2_cur_mb_addr) && (ps_dec->u4_first_slice_in_pic == 0))
1105 {
1106 return ERROR_CORRUPTED_SLICE;
1107 }
1108
1109 COPYTHECONTEXT("SH: first_mb_in_slice",u2_first_mb_in_slice);
1110
1111 u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
1112
1113 if(u4_temp > 9)
1114 return ERROR_INV_SLC_TYPE_T;
1115
1116 u1_slice_type = u4_temp;
1117 COPYTHECONTEXT("SH: slice_type",(u1_slice_type));
1118 /* Find Out the Slice Type is 5 to 9 or not then Set the Flag */
1119 /* u1_sl_typ_5_9 = 1 .Which tells that all the slices in the Pic*/
1120 /* will be of same type of current */
1121 if(u1_slice_type > 4)
1122 {
1123 u1_slice_type -= 5;
1124 }
1125
1126 u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
1127 if(u4_temp & MASK_ERR_PIC_SET_ID)
1128 return ERROR_INV_SLICE_HDR_T;
1129 /* discard slice if pic param is invalid */
1130 COPYTHECONTEXT("SH: pic_parameter_set_id", u4_temp);
1131 ps_pps = &ps_dec->ps_pps[u4_temp];
1132 if(FALSE == ps_pps->u1_is_valid)
1133 {
1134 return ERROR_INV_SLICE_HDR_T;
1135 }
1136 ps_seq = ps_pps->ps_sps;
1137 if(!ps_seq)
1138 return ERROR_INV_SLICE_HDR_T;
1139 if(FALSE == ps_seq->u1_is_valid)
1140 return ERROR_INV_SLICE_HDR_T;
1141
1142 /* Get the frame num */
1143 u2_frame_num = ih264d_get_bits_h264(ps_bitstrm,
1144 ps_seq->u1_bits_in_frm_num);
1145 // H264_DEC_DEBUG_PRINT("FRAME %d First MB in slice: %d\n", u2_frame_num, u2_first_mb_in_slice);
1146
1147 COPYTHECONTEXT("SH: frame_num", u2_frame_num);
1148 // H264_DEC_DEBUG_PRINT("Second field: %d frame num: %d prv_frame_num: %d \n", ps_dec->u1_second_field, u2_frame_num, ps_dec->u2_prv_frame_num);
1149 if(!ps_dec->u1_first_slice_in_stream && ps_dec->u4_first_slice_in_pic)
1150 {
1151 pocstruct_t *ps_prev_poc = &ps_dec->s_prev_pic_poc;
1152 pocstruct_t *ps_cur_poc = &ps_dec->s_cur_pic_poc;
1153
1154 ps_dec->u2_mbx = 0xffff;
1155 ps_dec->u2_mby = 0;
1156
1157 if((0 == u1_is_idr_slice) && ps_cur_slice->u1_nal_ref_idc)
1158 ps_dec->u2_prev_ref_frame_num = ps_cur_slice->u2_frame_num;
1159
1160 if(u1_is_idr_slice || ps_cur_slice->u1_mmco_equalto5)
1161 ps_dec->u2_prev_ref_frame_num = 0;
1162
1163 if(ps_dec->ps_cur_sps->u1_gaps_in_frame_num_value_allowed_flag)
1164 {
1165 ih264d_decode_gaps_in_frame_num(ps_dec, u2_frame_num);
1166 }
1167
1168 ps_prev_poc->i4_prev_frame_num_ofst = ps_cur_poc->i4_prev_frame_num_ofst;
1169 ps_prev_poc->u2_frame_num = ps_cur_poc->u2_frame_num;
1170 ps_prev_poc->u1_mmco_equalto5 = ps_cur_slice->u1_mmco_equalto5;
1171 if(ps_cur_slice->u1_nal_ref_idc)
1172 {
1173 ps_prev_poc->i4_pic_order_cnt_lsb = ps_cur_poc->i4_pic_order_cnt_lsb;
1174 ps_prev_poc->i4_pic_order_cnt_msb = ps_cur_poc->i4_pic_order_cnt_msb;
1175 ps_prev_poc->i4_delta_pic_order_cnt_bottom =
1176 ps_cur_poc->i4_delta_pic_order_cnt_bottom;
1177 ps_prev_poc->i4_delta_pic_order_cnt[0] =
1178 ps_cur_poc->i4_delta_pic_order_cnt[0];
1179 ps_prev_poc->i4_delta_pic_order_cnt[1] =
1180 ps_cur_poc->i4_delta_pic_order_cnt[1];
1181 ps_prev_poc->u1_bot_field = ps_cur_poc->u1_bot_field;
1182 }
1183
1184 ps_dec->u2_total_mbs_coded = 0;
1185 }
1186 /* Get the field related flags */
1187 if(!ps_seq->u1_frame_mbs_only_flag)
1188 {
1189
1190 u1_field_pic_flag = ih264d_get_bit_h264(ps_bitstrm);
1191 COPYTHECONTEXT("SH: field_pic_flag", u1_field_pic_flag);
1192 u1_bottom_field_flag = 0;
1193
1194 if(u1_field_pic_flag)
1195 {
1196 ps_dec->pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan_fld;
1197 u1_bottom_field_flag = ih264d_get_bit_h264(ps_bitstrm);
1198 COPYTHECONTEXT("SH: bottom_field_flag", u1_bottom_field_flag);
1199
1200 }
1201 else
1202 {
1203 ps_dec->pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan;
1204 }
1205 }
1206 else
1207 {
1208 u1_field_pic_flag = 0;
1209 u1_bottom_field_flag = 0;
1210
1211 ps_dec->pu1_inv_scan = (UWORD8 *)gau1_ih264d_inv_scan;
1212 }
1213
1214 u1_nal_unit_type = SLICE_NAL;
1215 if(u1_is_idr_slice)
1216 {
1217 u1_nal_unit_type = IDR_SLICE_NAL;
1218 u4_idr_pic_id = ih264d_uev(pu4_bitstrm_ofst,
1219 pu4_bitstrm_buf);
1220 if(u4_idr_pic_id > 65535)
1221 return ERROR_INV_SLICE_HDR_T;
1222 COPYTHECONTEXT("SH: ", u4_idr_pic_id);
1223 }
1224
1225 /* read delta pic order count information*/
1226 i_delta_poc[0] = i_delta_poc[1] = 0;
1227 s_tmp_poc.i4_pic_order_cnt_lsb = 0;
1228 s_tmp_poc.i4_delta_pic_order_cnt_bottom = 0;
1229 u1_pic_order_cnt_type = ps_seq->u1_pic_order_cnt_type;
1230 if(u1_pic_order_cnt_type == 0)
1231 {
1232 i_temp = ih264d_get_bits_h264(
1233 ps_bitstrm,
1234 ps_seq->u1_log2_max_pic_order_cnt_lsb_minus);
1235 if(i_temp < 0 || i_temp >= ps_seq->i4_max_pic_order_cntLsb)
1236 return ERROR_INV_SLICE_HDR_T;
1237 s_tmp_poc.i4_pic_order_cnt_lsb = i_temp;
1238 COPYTHECONTEXT("SH: pic_order_cnt_lsb", s_tmp_poc.i4_pic_order_cnt_lsb);
1239
1240 if((ps_pps->u1_pic_order_present_flag == 1) && (!u1_field_pic_flag))
1241 {
1242 s_tmp_poc.i4_delta_pic_order_cnt_bottom = ih264d_sev(
1243 pu4_bitstrm_ofst, pu4_bitstrm_buf);
1244 //if(s_tmp_poc.i4_delta_pic_order_cnt_bottom > ps_seq->i4_max_pic_order_cntLsb)
1245 COPYTHECONTEXT("SH: delta_pic_order_cnt_bottom",
1246 s_tmp_poc.i4_delta_pic_order_cnt_bottom);
1247 }
1248 }
1249
1250 s_tmp_poc.i4_delta_pic_order_cnt[0] = 0;
1251 s_tmp_poc.i4_delta_pic_order_cnt[1] = 0;
1252 if(u1_pic_order_cnt_type == 1
1253 && (!ps_seq->u1_delta_pic_order_always_zero_flag))
1254 {
1255 s_tmp_poc.i4_delta_pic_order_cnt[0] = ih264d_sev(pu4_bitstrm_ofst,
1256 pu4_bitstrm_buf);
1257 COPYTHECONTEXT("SH: delta_pic_order_cnt[0]",
1258 s_tmp_poc.i4_delta_pic_order_cnt[0]);
1259
1260 if(ps_pps->u1_pic_order_present_flag && !u1_field_pic_flag)
1261 {
1262 s_tmp_poc.i4_delta_pic_order_cnt[1] = ih264d_sev(
1263 pu4_bitstrm_ofst, pu4_bitstrm_buf);
1264 COPYTHECONTEXT("SH: delta_pic_order_cnt[1]",
1265 s_tmp_poc.i4_delta_pic_order_cnt[1]);
1266 }
1267 }
1268
1269 if(ps_pps->u1_redundant_pic_cnt_present_flag)
1270 {
1271 u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
1272 if(u4_temp > MAX_REDUNDANT_PIC_CNT)
1273 return ERROR_INV_SLICE_HDR_T;
1274 u1_redundant_pic_cnt = u4_temp;
1275 COPYTHECONTEXT("SH: redundant_pic_cnt", u1_redundant_pic_cnt);
1276 }
1277
1278 /*--------------------------------------------------------------------*/
1279 /* Check if the slice is part of new picture */
1280 /*--------------------------------------------------------------------*/
1281 /* First slice of a picture is always considered as part of new picture */
1282 i1_is_end_of_poc = 1;
1283 ps_dec->ps_dec_err_status->u1_err_flag &= MASK_REJECT_CUR_PIC;
1284
1285 if(ps_dec->u4_first_slice_in_pic == 0)
1286 {
1287 i1_is_end_of_poc = ih264d_is_end_of_pic(u2_frame_num, u1_nal_ref_idc,
1288 &s_tmp_poc, &ps_dec->s_cur_pic_poc,
1289 ps_cur_slice, u1_pic_order_cnt_type,
1290 u1_nal_unit_type, u4_idr_pic_id,
1291 u1_field_pic_flag,
1292 u1_bottom_field_flag);
1293 if(i1_is_end_of_poc)
1294 {
1295 ps_dec->u1_first_slice_in_stream = 0;
1296 return ERROR_INCOMPLETE_FRAME;
1297 }
1298
1299 }
1300
1301 /*--------------------------------------------------------------------*/
1302 /* Check for error in slice and parse the missing/corrupted MB's */
1303 /* as skip-MB's in an inserted P-slice */
1304 /*--------------------------------------------------------------------*/
1305 u1_mbaff = ps_seq->u1_mb_aff_flag && (!u1_field_pic_flag);
1306 prev_slice_err = 0;
1307
1308 if(i1_is_end_of_poc || ps_dec->u1_first_slice_in_stream)
1309 {
1310 if(u2_frame_num != ps_dec->u2_prv_frame_num
1311 && ps_dec->u1_top_bottom_decoded != 0
1312 && ps_dec->u1_top_bottom_decoded
1313 != (TOP_FIELD_ONLY | BOT_FIELD_ONLY))
1314 {
1315 ps_dec->u1_dangling_field = 1;
1316 if(ps_dec->u4_first_slice_in_pic)
1317 {
1318 // first slice - dangling field
1319 prev_slice_err = 1;
1320 }
1321 else
1322 {
1323 // last slice - dangling field
1324 prev_slice_err = 2;
1325 }
1326
1327 if(ps_dec->u1_top_bottom_decoded ==TOP_FIELD_ONLY)
1328 ps_cur_slice->u1_bottom_field_flag = 1;
1329 else
1330 ps_cur_slice->u1_bottom_field_flag = 0;
1331
1332 num_mb_skipped = (ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs)
1333 - ps_dec->u2_total_mbs_coded;
1334 ps_cur_poc = &ps_dec->s_cur_pic_poc;
1335
1336 u1_is_idr_slice = ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL;
1337 }
1338 else if(ps_dec->u4_first_slice_in_pic)
1339 {
1340 if(u2_first_mb_in_slice > 0)
1341 {
1342 // first slice - missing/header corruption
1343 prev_slice_err = 1;
1344 num_mb_skipped = u2_first_mb_in_slice << u1_mbaff;
1345 ps_cur_poc = &s_tmp_poc;
1346
1347 // initializing slice parameters
1348 ps_cur_slice->u4_idr_pic_id = u4_idr_pic_id;
1349 ps_cur_slice->u1_field_pic_flag = u1_field_pic_flag;
1350 ps_cur_slice->u1_bottom_field_flag = u1_bottom_field_flag;
1351 ps_cur_slice->i4_pic_order_cnt_lsb =
1352 s_tmp_poc.i4_pic_order_cnt_lsb;
1353 ps_cur_slice->u1_nal_unit_type = u1_nal_unit_type;
1354 ps_cur_slice->u1_redundant_pic_cnt = u1_redundant_pic_cnt;
1355 ps_cur_slice->u1_nal_ref_idc = u1_nal_ref_idc;
1356 ps_cur_slice->u1_pic_order_cnt_type = u1_pic_order_cnt_type;
1357 ps_cur_slice->u1_mbaff_frame_flag = ps_seq->u1_mb_aff_flag
1358 && (!u1_field_pic_flag);
1359 }
1360 }
1361 else
1362 {
1363 /* since i1_is_end_of_poc is set ,means new frame num is encountered. so conceal the current frame
1364 * completely */
1365 prev_slice_err = 2;
1366 num_mb_skipped = (ps_dec->u2_frm_ht_in_mbs
1367 * ps_dec->u2_frm_wd_in_mbs)
1368 - ps_dec->u2_total_mbs_coded;
1369 ps_cur_poc = &s_tmp_poc;
1370 }
1371 }
1372 else
1373 {
1374 if((u2_first_mb_in_slice << u1_mbaff) > ps_dec->u2_total_mbs_coded)
1375 {
1376 // previous slice - missing/corruption
1377 prev_slice_err = 2;
1378 num_mb_skipped = (u2_first_mb_in_slice << u1_mbaff)
1379 - ps_dec->u2_total_mbs_coded;
1380 ps_cur_poc = &s_tmp_poc;
1381 }
1382 else if((u2_first_mb_in_slice << u1_mbaff) < ps_dec->u2_total_mbs_coded)
1383 {
1384 return ERROR_CORRUPTED_SLICE;
1385 }
1386 }
1387
1388 if(prev_slice_err)
1389 {
1390 ret = ih264d_mark_err_slice_skip(ps_dec, num_mb_skipped, u1_is_idr_slice, u2_frame_num, ps_cur_poc, prev_slice_err);
1391
1392 if(ps_dec->u1_dangling_field == 1)
1393 {
1394 ps_dec->u1_second_field = 1 - ps_dec->u1_second_field;
1395 ps_dec->u1_first_slice_in_stream = 0;
1396 ps_dec->u1_top_bottom_decoded = TOP_FIELD_ONLY | BOT_FIELD_ONLY;
1397 return ERROR_DANGLING_FIELD_IN_PIC;
1398 }
1399
1400 if(prev_slice_err == 2)
1401 {
1402 ps_dec->u1_first_slice_in_stream = 0;
1403 return ERROR_INCOMPLETE_FRAME;
1404 }
1405
1406 if(ps_dec->u2_total_mbs_coded
1407 >= ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs)
1408 {
1409 /* return if all MBs in frame are parsed*/
1410 ps_dec->u1_first_slice_in_stream = 0;
1411 return ERROR_IN_LAST_SLICE_OF_PIC;
1412 }
1413
1414 if(ps_dec->ps_dec_err_status->u1_err_flag & REJECT_CUR_PIC)
1415 {
1416 ih264d_err_pic_dispbuf_mgr(ps_dec);
1417 return ERROR_NEW_FRAME_EXPECTED;
1418 }
1419
1420 if(ret != OK)
1421 return ret;
1422
1423 i1_is_end_of_poc = 0;
1424 }
1425
1426 if (ps_dec->u4_first_slice_in_pic == 0)
1427 {
1428 ps_dec->ps_parse_cur_slice++;
1429 ps_dec->u2_cur_slice_num++;
1430 }
1431
1432 // in the case of single core increment ps_decode_cur_slice
1433 if((ps_dec->u1_separate_parse == 0) && (ps_dec->u4_first_slice_in_pic == 0))
1434 {
1435 ps_dec->ps_decode_cur_slice++;
1436 }
1437 ps_dec->u1_slice_header_done = 0;
1438
1439
1440 if(u1_field_pic_flag)
1441 {
1442 ps_dec->u2_prv_frame_num = u2_frame_num;
1443 }
1444
1445 if(ps_cur_slice->u1_mmco_equalto5)
1446 {
1447 WORD32 i4_temp_poc;
1448 WORD32 i4_top_field_order_poc, i4_bot_field_order_poc;
1449
1450 if(!ps_cur_slice->u1_field_pic_flag) // or a complementary field pair
1451 {
1452 i4_top_field_order_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt;
1453 i4_bot_field_order_poc =
1454 ps_dec->ps_cur_pic->i4_bottom_field_order_cnt;
1455 i4_temp_poc = MIN(i4_top_field_order_poc,
1456 i4_bot_field_order_poc);
1457 }
1458 else if(!ps_cur_slice->u1_bottom_field_flag)
1459 i4_temp_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt;
1460 else
1461 i4_temp_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt;
1462
1463 ps_dec->ps_cur_pic->i4_top_field_order_cnt = i4_temp_poc
1464 - ps_dec->ps_cur_pic->i4_top_field_order_cnt;
1465 ps_dec->ps_cur_pic->i4_bottom_field_order_cnt = i4_temp_poc
1466 - ps_dec->ps_cur_pic->i4_bottom_field_order_cnt;
1467 ps_dec->ps_cur_pic->i4_poc = i4_temp_poc;
1468 ps_dec->ps_cur_pic->i4_avg_poc = i4_temp_poc;
1469 }
1470 if(ps_dec->u4_first_slice_in_pic)
1471 {
1472 ret = ih264d_decode_pic_order_cnt(u1_is_idr_slice, u2_frame_num,
1473 &ps_dec->s_prev_pic_poc,
1474 &s_tmp_poc, ps_cur_slice, ps_pps,
1475 u1_nal_ref_idc,
1476 u1_bottom_field_flag,
1477 u1_field_pic_flag, &i4_poc);
1478 if(ret != OK)
1479 return ret;
1480 /* Display seq no calculations */
1481 if(i4_poc >= ps_dec->i4_max_poc)
1482 ps_dec->i4_max_poc = i4_poc;
1483 /* IDR Picture or POC wrap around */
1484 if(i4_poc == 0)
1485 {
1486 UWORD64 u8_temp;
1487 u8_temp = (UWORD64)ps_dec->i4_prev_max_display_seq
1488 + ps_dec->i4_max_poc
1489 + ps_dec->u1_max_dec_frame_buffering + 1;
1490 /*If i4_prev_max_display_seq overflows integer range, reset it */
1491 ps_dec->i4_prev_max_display_seq = (u8_temp > 0x7fffffff)?
1492 0 : u8_temp;
1493 ps_dec->i4_max_poc = 0;
1494 }
1495 }
1496
1497 /*--------------------------------------------------------------------*/
1498 /* Copy the values read from the bitstream to the slice header and then*/
1499 /* If the slice is first slice in picture, then do Start of Picture */
1500 /* processing. */
1501 /*--------------------------------------------------------------------*/
1502 ps_cur_slice->i4_delta_pic_order_cnt[0] = i_delta_poc[0];
1503 ps_cur_slice->i4_delta_pic_order_cnt[1] = i_delta_poc[1];
1504 ps_cur_slice->u4_idr_pic_id = u4_idr_pic_id;
1505 ps_cur_slice->u2_first_mb_in_slice = u2_first_mb_in_slice;
1506 ps_cur_slice->u1_field_pic_flag = u1_field_pic_flag;
1507 ps_cur_slice->u1_bottom_field_flag = u1_bottom_field_flag;
1508 ps_cur_slice->u1_slice_type = u1_slice_type;
1509 ps_cur_slice->i4_pic_order_cnt_lsb = s_tmp_poc.i4_pic_order_cnt_lsb;
1510
1511 ps_cur_slice->u1_nal_unit_type = u1_nal_unit_type;
1512 ps_cur_slice->u1_redundant_pic_cnt = u1_redundant_pic_cnt;
1513 ps_cur_slice->u1_nal_ref_idc = u1_nal_ref_idc;
1514 ps_cur_slice->u1_pic_order_cnt_type = u1_pic_order_cnt_type;
1515
1516 if(ps_seq->u1_frame_mbs_only_flag)
1517 ps_cur_slice->u1_direct_8x8_inference_flag =
1518 ps_seq->u1_direct_8x8_inference_flag;
1519 else
1520 ps_cur_slice->u1_direct_8x8_inference_flag = 1;
1521
1522 if(u1_slice_type == B_SLICE)
1523 {
1524 ps_cur_slice->u1_direct_spatial_mv_pred_flag = ih264d_get_bit_h264(
1525 ps_bitstrm);
1526 COPYTHECONTEXT("SH: direct_spatial_mv_pred_flag",
1527 ps_cur_slice->u1_direct_spatial_mv_pred_flag);
1528
1529 if(ps_cur_slice->u1_direct_spatial_mv_pred_flag)
1530 ps_cur_slice->pf_decodeDirect = ih264d_decode_spatial_direct;
1531 else
1532 ps_cur_slice->pf_decodeDirect = ih264d_decode_temporal_direct;
1533 if(!((ps_pps->ps_sps->u1_mb_aff_flag) && (!u1_field_pic_flag)))
1534 ps_dec->pf_mvpred = ih264d_mvpred_nonmbaffB;
1535 }
1536 else
1537 {
1538 if(!((ps_pps->ps_sps->u1_mb_aff_flag) && (!u1_field_pic_flag)))
1539 ps_dec->pf_mvpred = ih264d_mvpred_nonmbaff;
1540 }
1541
1542 if(ps_dec->u4_first_slice_in_pic)
1543 {
1544 if(u2_first_mb_in_slice == 0)
1545 {
1546 ret = ih264d_start_of_pic(ps_dec, i4_poc, &s_tmp_poc, u2_frame_num, ps_pps);
1547 if(ret != OK)
1548 return ret;
1549 }
1550
1551 ps_dec->u4_output_present = 0;
1552
1553 {
1554 ih264d_get_next_display_field(ps_dec,
1555 ps_dec->ps_out_buffer,
1556 &(ps_dec->s_disp_op));
1557 /* If error code is non-zero then there is no buffer available for display,
1558 hence avoid format conversion */
1559
1560 if(0 != ps_dec->s_disp_op.u4_error_code)
1561 {
1562 ps_dec->u4_fmt_conv_cur_row = ps_dec->s_disp_frame_info.u4_y_ht;
1563 }
1564 else
1565 ps_dec->u4_output_present = 1;
1566 }
1567 if(ps_dec->u1_separate_parse == 1)
1568 {
1569 if(ps_dec->u4_dec_thread_created == 0)
1570 {
1571 ithread_create(ps_dec->pv_dec_thread_handle, NULL,
1572 (void *)ih264d_decode_picture_thread,
1573 (void *)ps_dec);
1574
1575 ps_dec->u4_dec_thread_created = 1;
1576 }
1577
1578 if((ps_dec->u4_num_cores == 3) &&
1579 ((ps_dec->u4_app_disable_deblk_frm == 0) || ps_dec->i1_recon_in_thread3_flag)
1580 && (ps_dec->u4_bs_deblk_thread_created == 0))
1581 {
1582 ps_dec->u4_start_recon_deblk = 0;
1583 ithread_create(ps_dec->pv_bs_deblk_thread_handle, NULL,
1584 (void *)ih264d_recon_deblk_thread,
1585 (void *)ps_dec);
1586 ps_dec->u4_bs_deblk_thread_created = 1;
1587 }
1588 }
1589
1590 }
1591
1592 /* INITIALIZATION of fn ptrs for MC and formMbPartInfo functions */
1593 {
1594 UWORD8 uc_nofield_nombaff;
1595
1596
1597
1598 uc_nofield_nombaff = ((ps_dec->ps_cur_slice->u1_field_pic_flag == 0)
1599 && (ps_dec->ps_cur_slice->u1_mbaff_frame_flag == 0)
1600 && (u1_slice_type != B_SLICE)
1601 && (ps_dec->ps_cur_pps->u1_wted_pred_flag == 0));
1602
1603 /* Initialise MC and formMbPartInfo fn ptrs one time based on profile_idc */
1604
1605 if(uc_nofield_nombaff)
1606 {
1607 ps_dec->p_form_mb_part_info = ih264d_form_mb_part_info_bp;
1608 ps_dec->p_motion_compensate = ih264d_motion_compensate_bp;
1609 }
1610 else
1611 {
1612 ps_dec->p_form_mb_part_info = ih264d_form_mb_part_info_mp;
1613 ps_dec->p_motion_compensate = ih264d_motion_compensate_mp;
1614 }
1615
1616
1617 }
1618
1619 /*
1620 * Decide whether to decode the current picture or not
1621 */
1622 {
1623 dec_err_status_t * ps_err = ps_dec->ps_dec_err_status;
1624 if(ps_err->u4_frm_sei_sync == u2_frame_num)
1625 {
1626 ps_err->u1_err_flag = ACCEPT_ALL_PICS;
1627 ps_err->u4_frm_sei_sync = SYNC_FRM_DEFAULT;
1628 }
1629 ps_err->u4_cur_frm = u2_frame_num;
1630 }
1631
1632 /* Decision for decoding if the picture is to be skipped */
1633 {
1634 WORD32 i4_skip_b_pic, i4_skip_p_pic;
1635
1636 i4_skip_b_pic = (ps_dec->u4_skip_frm_mask & B_SLC_BIT)
1637 && (B_SLICE == u1_slice_type) && (0 == u1_nal_ref_idc);
1638
1639 i4_skip_p_pic = (ps_dec->u4_skip_frm_mask & P_SLC_BIT)
1640 && (P_SLICE == u1_slice_type) && (0 == u1_nal_ref_idc);
1641
1642 /**************************************************************/
1643 /* Skip the B picture if skip mask is set for B picture and */
1644 /* Current B picture is a non reference B picture or there is */
1645 /* no user for reference B picture */
1646 /**************************************************************/
1647 if(i4_skip_b_pic)
1648 {
1649 ps_dec->ps_cur_pic->u4_pack_slc_typ |= B_SLC_BIT;
1650 /* Don't decode the picture in SKIP-B mode if that picture is B */
1651 /* and also it is not to be used as a reference picture */
1652 ps_dec->u1_last_pic_not_decoded = 1;
1653
1654 return OK;
1655 }
1656 /**************************************************************/
1657 /* Skip the P picture if skip mask is set for P picture and */
1658 /* Current P picture is a non reference P picture or there is */
1659 /* no user for reference P picture */
1660 /**************************************************************/
1661 if(i4_skip_p_pic)
1662 {
1663 ps_dec->ps_cur_pic->u4_pack_slc_typ |= P_SLC_BIT;
1664 /* Don't decode the picture in SKIP-P mode if that picture is P */
1665 /* and also it is not to be used as a reference picture */
1666 ps_dec->u1_last_pic_not_decoded = 1;
1667
1668 return OK;
1669 }
1670 }
1671
1672 {
1673 UWORD16 u2_mb_x, u2_mb_y;
1674
1675 ps_dec->i4_submb_ofst = ((u2_first_mb_in_slice
1676 << ps_cur_slice->u1_mbaff_frame_flag) * SUB_BLK_SIZE)
1677 - SUB_BLK_SIZE;
1678 if(u2_first_mb_in_slice)
1679 {
1680 UWORD8 u1_mb_aff;
1681 UWORD8 u1_field_pic;
1682 UWORD16 u2_frm_wd_in_mbs;
1683 u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs;
1684 u1_mb_aff = ps_cur_slice->u1_mbaff_frame_flag;
1685 u1_field_pic = ps_cur_slice->u1_field_pic_flag;
1686
1687 {
1688 UWORD32 x_offset;
1689 UWORD32 y_offset;
1690 UWORD32 u4_frame_stride;
1691 tfr_ctxt_t *ps_trns_addr; // = &ps_dec->s_tran_addrecon_parse;
1692
1693 if(ps_dec->u1_separate_parse)
1694 {
1695 ps_trns_addr = &ps_dec->s_tran_addrecon_parse;
1696 }
1697 else
1698 {
1699 ps_trns_addr = &ps_dec->s_tran_addrecon;
1700 }
1701 u2_mb_x = MOD(u2_first_mb_in_slice, u2_frm_wd_in_mbs);
1702 u2_mb_y = DIV(u2_first_mb_in_slice, u2_frm_wd_in_mbs);
1703
1704 u2_mb_y <<= u1_mb_aff;
1705
1706 if((u2_mb_x > u2_frm_wd_in_mbs - 1)
1707 || (u2_mb_y > ps_dec->u2_frm_ht_in_mbs - 1))
1708 {
1709 return ERROR_CORRUPTED_SLICE;
1710 }
1711
1712 u4_frame_stride = ps_dec->u2_frm_wd_y << u1_field_pic;
1713 x_offset = u2_mb_x << 4;
1714 y_offset = (u2_mb_y * u4_frame_stride) << 4;
1715
1716 ps_trns_addr->pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1 + x_offset
1717 + y_offset;
1718
1719 u4_frame_stride = ps_dec->u2_frm_wd_uv << u1_field_pic;
1720 x_offset >>= 1;
1721 y_offset = (u2_mb_y * u4_frame_stride) << 3;
1722
1723 x_offset *= YUV420SP_FACTOR;
1724
1725 ps_trns_addr->pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2 + x_offset
1726 + y_offset;
1727 ps_trns_addr->pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3 + x_offset
1728 + y_offset;
1729
1730 ps_trns_addr->pu1_mb_y = ps_trns_addr->pu1_dest_y;
1731 ps_trns_addr->pu1_mb_u = ps_trns_addr->pu1_dest_u;
1732 ps_trns_addr->pu1_mb_v = ps_trns_addr->pu1_dest_v;
1733
1734
1735 // assign the deblock structure pointers to start of slice
1736 if(ps_dec->u1_separate_parse == 1)
1737 {
1738 ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic
1739 + (u2_first_mb_in_slice << u1_mb_aff);
1740 }
1741 else
1742 {
1743 ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic
1744 + (u2_first_mb_in_slice << u1_mb_aff);
1745 }
1746
1747 ps_dec->u2_cur_mb_addr = (u2_first_mb_in_slice << u1_mb_aff);
1748
1749 ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv
1750 + ((u2_first_mb_in_slice << u1_mb_aff) << 4);
1751 }
1752 }
1753 else
1754 {
1755 tfr_ctxt_t *ps_trns_addr;
1756
1757 if(ps_dec->u1_separate_parse)
1758 {
1759 ps_trns_addr = &ps_dec->s_tran_addrecon_parse;
1760 }
1761 else
1762 {
1763 ps_trns_addr = &ps_dec->s_tran_addrecon;
1764 }
1765
1766 u2_mb_x = 0xffff;
1767 u2_mb_y = 0;
1768 // assign the deblock structure pointers to start of slice
1769 ps_dec->u2_cur_mb_addr = 0;
1770 ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic;
1771 ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv;
1772 ps_trns_addr->pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1;
1773 ps_trns_addr->pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2;
1774 ps_trns_addr->pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3;
1775
1776 ps_trns_addr->pu1_mb_y = ps_trns_addr->pu1_dest_y;
1777 ps_trns_addr->pu1_mb_u = ps_trns_addr->pu1_dest_u;
1778 ps_trns_addr->pu1_mb_v = ps_trns_addr->pu1_dest_v;
1779
1780 }
1781
1782 ps_dec->ps_part = ps_dec->ps_parse_part_params;
1783
1784 ps_dec->u2_mbx =
1785 (MOD(u2_first_mb_in_slice - 1, ps_seq->u2_frm_wd_in_mbs));
1786 ps_dec->u2_mby =
1787 (DIV(u2_first_mb_in_slice - 1, ps_seq->u2_frm_wd_in_mbs));
1788 ps_dec->u2_mby <<= ps_cur_slice->u1_mbaff_frame_flag;
1789 ps_dec->i2_prev_slice_mbx = ps_dec->u2_mbx;
1790 ps_dec->i2_prev_slice_mby = ps_dec->u2_mby;
1791 }
1792
1793 /* RBSP stop bit is used for CABAC decoding*/
1794 ps_bitstrm->u4_max_ofst += ps_dec->ps_cur_pps->u1_entropy_coding_mode;
1795
1796 ps_dec->u1_B = (u1_slice_type == B_SLICE);
1797 ps_dec->u4_next_mb_skip = 0;
1798
1799 ps_dec->ps_parse_cur_slice->u4_first_mb_in_slice =
1800 ps_dec->ps_cur_slice->u2_first_mb_in_slice;
1801 ps_dec->ps_parse_cur_slice->slice_type =
1802 ps_dec->ps_cur_slice->u1_slice_type;
1803
1804
1805 ps_dec->u4_start_recon_deblk = 1;
1806 {
1807 WORD32 num_entries;
1808 WORD32 size;
1809 UWORD8 *pu1_buf;
1810
1811 num_entries = MAX_FRAMES;
1812 if((1 >= ps_dec->ps_cur_sps->u1_num_ref_frames) &&
1813 (0 == ps_dec->i4_display_delay))
1814 {
1815 num_entries = 1;
1816 }
1817 num_entries = ((2 * num_entries) + 1);
1818 num_entries *= 2;
1819
1820
1821 size = num_entries * sizeof(void *);
1822 size += PAD_MAP_IDX_POC * sizeof(void *);
1823
1824 pu1_buf = (UWORD8 *)ps_dec->pv_map_ref_idx_to_poc_buf;
1825 pu1_buf += size * ps_dec->u2_cur_slice_num;
1826 ps_dec->ps_parse_cur_slice->ppv_map_ref_idx_to_poc = ( void *)pu1_buf;
1827 }
1828
1829 if(ps_dec->u1_separate_parse)
1830 {
1831 ps_dec->ps_parse_cur_slice->pv_tu_coeff_data_start = ps_dec->pv_parse_tu_coeff_data;
1832 }
1833 else
1834 {
1835 ps_dec->pv_proc_tu_coeff_data = ps_dec->pv_parse_tu_coeff_data;
1836 }
1837
1838 ret = ih264d_fix_error_in_dpb(ps_dec);
1839 if(ret < 0)
1840 return ERROR_DBP_MANAGER_T;
1841
1842 if(u1_slice_type == I_SLICE)
1843 {
1844 ps_dec->ps_cur_pic->u4_pack_slc_typ |= I_SLC_BIT;
1845
1846 ret = ih264d_parse_islice(ps_dec, u2_first_mb_in_slice);
1847 ps_dec->u1_pr_sl_type = u1_slice_type;
1848 if(ps_dec->i4_pic_type != B_SLICE && ps_dec->i4_pic_type != P_SLICE)
1849 ps_dec->i4_pic_type = I_SLICE;
1850
1851 }
1852 else if(u1_slice_type == P_SLICE)
1853 {
1854 ps_dec->ps_cur_pic->u4_pack_slc_typ |= P_SLC_BIT;
1855 ret = ih264d_parse_pslice(ps_dec, u2_first_mb_in_slice);
1856 ps_dec->u1_pr_sl_type = u1_slice_type;
1857 if(ps_dec->i4_pic_type != B_SLICE)
1858 ps_dec->i4_pic_type = P_SLICE;
1859 }
1860 else if(u1_slice_type == B_SLICE)
1861 {
1862 ps_dec->ps_cur_pic->u4_pack_slc_typ |= B_SLC_BIT;
1863 ret = ih264d_parse_bslice(ps_dec, u2_first_mb_in_slice);
1864 ps_dec->u1_pr_sl_type = u1_slice_type;
1865 ps_dec->i4_pic_type = B_SLICE;
1866 }
1867 else
1868 return ERROR_INV_SLC_TYPE_T;
1869
1870 if(ps_dec->u1_slice_header_done)
1871 {
1872 /* set to zero to indicate a valid slice has been decoded */
1873 ps_dec->u1_first_slice_in_stream = 0;
1874 }
1875
1876 if(ret != OK)
1877 return ret;
1878
1879 if(u1_nal_ref_idc != 0)
1880 {
1881 if(!ps_dec->ps_dpb_cmds->u1_dpb_commands_read)
1882 {
1883 memcpy((void *)ps_dec->ps_dpb_cmds, (void *)(&(ps_dec->s_dpb_cmds_scratch)),
1884 sizeof(dpb_commands_t));
1885 }
1886 }
1887
1888 /* storing last Mb X and MbY of the slice */
1889 ps_dec->i2_prev_slice_mbx = ps_dec->u2_mbx;
1890 ps_dec->i2_prev_slice_mby = ps_dec->u2_mby;
1891
1892 /* End of Picture detection */
1893
1894 if(ps_dec->u2_total_mbs_coded >= (ps_seq->u2_max_mb_addr + 1))
1895 {
1896 ps_dec->u1_pic_decode_done = 1;
1897
1898 }
1899
1900 {
1901 dec_err_status_t * ps_err = ps_dec->ps_dec_err_status;
1902 if((ps_err->u1_err_flag & REJECT_PB_PICS)
1903 && (ps_err->u1_cur_pic_type == PIC_TYPE_I))
1904 {
1905 ps_err->u1_err_flag = ACCEPT_ALL_PICS;
1906 }
1907 }
1908
1909 PRINT_BIN_BIT_RATIO(ps_dec)
1910
1911 return ret;
1912 }
1913
1914