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->as_buf_id_info_map[j].mv_buf_id,
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
413 /* In case of IDR slices, if there is no free picture buffer, then release
414 * all buffers from display and reference
415 */
416 if((ps_cur_pic == NULL) && (ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL))
417 {
418 WORD32 j;
419
420 for(j = 0; j < MAX_DISP_BUFS_NEW; j++)
421 {
422 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
423 j,
424 BUF_MGR_REF);
425 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
426 ps_dec->as_buf_id_info_map[j].mv_buf_id,
427 BUF_MGR_REF);
428
429 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
430 j,
431 BUF_MGR_IO);
432 }
433 ps_cur_pic = (pic_buffer_t *)ih264_buf_mgr_get_next_free(
434 (buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
435 &cur_pic_buf_id);
436 }
437
438 if(ps_cur_pic == NULL)
439 {
440 ps_dec->i4_error_code = ERROR_UNAVAIL_PICBUF_T;
441 ps_dec->ps_dec_err_status->u1_err_flag |= REJECT_CUR_PIC;
442 return ERROR_UNAVAIL_PICBUF_T;
443 }
444 if(0 == ps_dec->u4_disp_buf_mapping[cur_pic_buf_id])
445 {
446 break;
447 }
448
449 }
450 ps_col_mv = (col_mv_buf_t *)ih264_buf_mgr_get_next_free((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
451 &cur_mv_buf_id);
452 if(ps_col_mv == NULL)
453 {
454 ps_dec->i4_error_code = ERROR_UNAVAIL_MVBUF_T;
455 ps_dec->ps_dec_err_status->u1_err_flag |= REJECT_CUR_PIC;
456 return ERROR_UNAVAIL_MVBUF_T;
457 }
458
459 ps_dec->ps_cur_pic = ps_cur_pic;
460 ps_dec->u1_pic_buf_id = cur_pic_buf_id;
461 ps_cur_pic->u4_ts = ps_dec->u4_ts;
462
463 /* Update POC and inter_pic_id in sei structure,
464 * later can be used by application for grain synthesis(SMPTE-RDD5) */
465 if(ps_dec->ps_sei->u1_sei_fgc_params_present_flag)
466 {
467 ps_dec->ps_sei->s_sei_fgc_params.i4_poc = i4_poc;
468 ps_dec->ps_sei->s_sei_fgc_params.u4_idr_pic_id = ps_cur_slice->u4_idr_pic_id;
469 }
470 memcpy(&ps_cur_pic->s_sei_pic, ps_dec->ps_sei, sizeof(sei));
471
472 ps_cur_pic->u1_mv_buf_id = cur_mv_buf_id;
473 ps_dec->as_buf_id_info_map[cur_pic_buf_id].mv_buf_id = cur_mv_buf_id;
474 if(ps_dec->u1_enable_mb_info)
475 {
476 UWORD32 mb_info_map_size = ps_dec->u4_total_mbs << 2;
477 ps_dec->as_buf_id_info_map[cur_pic_buf_id].pu1_qp_map
478 = ps_dec->pu1_qp_map_base + cur_pic_buf_id * mb_info_map_size;
479 ps_dec->as_buf_id_info_map[cur_pic_buf_id].pu1_mb_type_map
480 = ps_dec->pu1_mb_type_map_base + cur_pic_buf_id * mb_info_map_size;
481 memset(ps_dec->as_buf_id_info_map[cur_pic_buf_id].pu1_qp_map, 0, mb_info_map_size);
482 memset(ps_dec->as_buf_id_info_map[cur_pic_buf_id].pu1_mb_type_map, 0, mb_info_map_size);
483 }
484
485 ps_cur_pic->pu1_col_zero_flag = (UWORD8 *)ps_col_mv->pv_col_zero_flag;
486 ps_cur_pic->ps_mv = (mv_pred_t *)ps_col_mv->pv_mv;
487 ps_dec->au1_pic_buf_ref_flag[cur_pic_buf_id] = 0;
488
489 {
490 /*make first entry of list0 and list1 point to cur pic,
491 *so that if first slice is in error, ref pic struct will have valid entries*/
492 ps_dec->ps_ref_pic_buf_lx[0] = ps_dec->ps_dpb_mgr->ps_init_dpb[0];
493 ps_dec->ps_ref_pic_buf_lx[1] = ps_dec->ps_dpb_mgr->ps_init_dpb[1];
494 *(ps_dec->ps_dpb_mgr->ps_init_dpb[0][0]) = *ps_cur_pic;
495 /* Initialize for field reference as well */
496 *(ps_dec->ps_dpb_mgr->ps_init_dpb[0][MAX_REF_BUFS]) = *ps_cur_pic;
497
498 *(ps_dec->ps_dpb_mgr->ps_mod_dpb[0][0]) = *ps_cur_pic;
499 /* Initialize for field reference as well */
500 *(ps_dec->ps_dpb_mgr->ps_mod_dpb[0][MAX_REF_BUFS]) = *ps_cur_pic;
501 *(ps_dec->ps_dpb_mgr->ps_init_dpb[1][0]) = *ps_cur_pic;
502 /* Initialize for field reference as well */
503 *(ps_dec->ps_dpb_mgr->ps_init_dpb[1][MAX_REF_BUFS]) = *ps_cur_pic;
504 *(ps_dec->ps_dpb_mgr->ps_mod_dpb[1][0]) = *ps_cur_pic;
505 /* Initialize for field reference as well */
506 *(ps_dec->ps_dpb_mgr->ps_mod_dpb[1][MAX_REF_BUFS]) = *ps_cur_pic;
507 }
508
509 ps_dec->ps_cur_pic->u1_picturetype = u1_field_pic_flag;
510 ps_dec->ps_cur_pic->u4_pack_slc_typ = SKIP_NONE;
511 H264_DEC_DEBUG_PRINT("got a buffer\n");
512 }
513 else
514 {
515 H264_DEC_DEBUG_PRINT("did not get a buffer\n");
516 }
517
518 ps_dec->u4_pic_buf_got = 1;
519
520 ps_dec->ps_cur_pic->i4_poc = i4_poc;
521 ps_dec->ps_cur_pic->i4_frame_num = u2_frame_num;
522 ps_dec->ps_cur_pic->i4_pic_num = u2_frame_num;
523 ps_dec->ps_cur_pic->i4_top_field_order_cnt = ps_pps->i4_top_field_order_cnt;
524 ps_dec->ps_cur_pic->i4_bottom_field_order_cnt =
525 ps_pps->i4_bottom_field_order_cnt;
526 ps_dec->ps_cur_pic->i4_avg_poc = ps_pps->i4_avg_poc;
527 ps_dec->ps_cur_pic->u4_time_stamp = ps_dec->u4_pts;
528
529 ps_dec->s_cur_pic = *(ps_dec->ps_cur_pic);
530 if(u1_field_pic_flag && u1_bottom_field_flag)
531 {
532 WORD32 i4_temp_poc;
533 WORD32 i4_top_field_order_poc, i4_bot_field_order_poc;
534 /* Point to odd lines, since it's bottom field */
535 ps_dec->s_cur_pic.pu1_buf1 += ps_dec->s_cur_pic.u2_frm_wd_y;
536 ps_dec->s_cur_pic.pu1_buf2 += ps_dec->s_cur_pic.u2_frm_wd_uv;
537 ps_dec->s_cur_pic.pu1_buf3 += ps_dec->s_cur_pic.u2_frm_wd_uv;
538 ps_dec->s_cur_pic.ps_mv +=
539 ((ps_dec->u2_pic_ht * ps_dec->u2_pic_wd) >> 5);
540 ps_dec->s_cur_pic.pu1_col_zero_flag += ((ps_dec->u2_pic_ht
541 * ps_dec->u2_pic_wd) >> 5);
542 ps_dec->ps_cur_pic->u1_picturetype |= BOT_FLD;
543 i4_top_field_order_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt;
544 i4_bot_field_order_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt;
545 i4_temp_poc = MIN(i4_top_field_order_poc,
546 i4_bot_field_order_poc);
547 ps_dec->ps_cur_pic->i4_avg_poc = i4_temp_poc;
548 }
549
550 ps_cur_slice->u1_mbaff_frame_flag = ps_seq->u1_mb_aff_flag
551 && (!u1_field_pic_flag);
552
553 ps_dec->ps_cur_pic->u1_picturetype |= (ps_cur_slice->u1_mbaff_frame_flag
554 << 2);
555
556 ps_dec->ps_cur_mb_row = ps_dec->ps_nbr_mb_row; //[0];
557 //Increment by 2 ,so that left mb (mbaff decrements by 2) will always be valid
558 ps_dec->ps_cur_mb_row += 2;
559 ps_dec->ps_top_mb_row = ps_dec->ps_nbr_mb_row;
560 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));
561 //Increment by 2 ,so that left mb (mbaff decrements by 2) will always be valid
562 ps_dec->ps_top_mb_row += 2;
563
564 /* CHANGED CODE */
565 ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv;
566 ps_dec->ps_mv_top = ps_dec->ps_mv_top_p[0];
567 /* CHANGED CODE */
568 ps_dec->u1_mv_top_p = 0;
569 ps_dec->u1_mb_idx = 0;
570 /* CHANGED CODE */
571 ps_dec->ps_mv_left = ps_dec->s_cur_pic.ps_mv;
572 ps_dec->u2_total_mbs_coded = 0;
573 ps_dec->i4_submb_ofst = -(SUB_BLK_SIZE);
574 ps_dec->u4_pred_info_idx = 0;
575 ps_dec->u4_pred_info_pkd_idx = 0;
576 ps_dec->u4_dma_buf_idx = 0;
577 ps_dec->ps_mv = ps_dec->s_cur_pic.ps_mv;
578 ps_dec->ps_mv_bank_cur = ps_dec->s_cur_pic.ps_mv;
579 ps_dec->pu1_col_zero_flag = ps_dec->s_cur_pic.pu1_col_zero_flag;
580 ps_dec->ps_part = ps_dec->ps_parse_part_params;
581 ps_dec->i2_prev_slice_mbx = -1;
582 ps_dec->i2_prev_slice_mby = 0;
583 ps_dec->u2_mv_2mb[0] = 0;
584 ps_dec->u2_mv_2mb[1] = 0;
585 ps_dec->u1_last_pic_not_decoded = 0;
586
587 ps_dec->u2_cur_slice_num_dec_thread = 0;
588 ps_dec->u2_cur_slice_num_bs = 0;
589 ps_dec->u4_intra_pred_line_ofst = 0;
590 ps_dec->pu1_cur_y_intra_pred_line = ps_dec->pu1_y_intra_pred_line;
591 ps_dec->pu1_cur_u_intra_pred_line = ps_dec->pu1_u_intra_pred_line;
592 ps_dec->pu1_cur_v_intra_pred_line = ps_dec->pu1_v_intra_pred_line;
593
594 ps_dec->pu1_cur_y_intra_pred_line_base = ps_dec->pu1_y_intra_pred_line;
595 ps_dec->pu1_cur_u_intra_pred_line_base = ps_dec->pu1_u_intra_pred_line;
596 ps_dec->pu1_cur_v_intra_pred_line_base = ps_dec->pu1_v_intra_pred_line;
597
598
599
600
601
602 ps_dec->pu1_prev_y_intra_pred_line = ps_dec->pu1_y_intra_pred_line
603 + (ps_dec->u2_frm_wd_in_mbs * MB_SIZE);
604
605 ps_dec->pu1_prev_u_intra_pred_line = ps_dec->pu1_u_intra_pred_line
606 + ps_dec->u2_frm_wd_in_mbs * BLK8x8SIZE * YUV420SP_FACTOR;
607 ps_dec->pu1_prev_v_intra_pred_line = ps_dec->pu1_v_intra_pred_line
608 + ps_dec->u2_frm_wd_in_mbs * BLK8x8SIZE;
609
610 ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic;
611 /* Initialize The Function Pointer Depending Upon the Entropy and MbAff Flag */
612 {
613 if(ps_cur_slice->u1_mbaff_frame_flag)
614 {
615 ps_dec->pf_compute_bs = ih264d_compute_bs_mbaff;
616 ps_dec->pf_mvpred = ih264d_mvpred_mbaff;
617 }
618 else
619 {
620 ps_dec->pf_compute_bs = ih264d_compute_bs_non_mbaff;
621 ps_dec->u1_cur_mb_fld_dec_flag = ps_cur_slice->u1_field_pic_flag;
622 }
623 }
624 /* Set up the Parameter for DMA transfer */
625 {
626 UWORD8 u1_field_pic_flag = ps_dec->ps_cur_slice->u1_field_pic_flag;
627
628 UWORD8 u1_mbaff = ps_cur_slice->u1_mbaff_frame_flag;
629
630 UWORD8 uc_lastmbs = (((ps_dec->u2_pic_wd) >> 4)
631 % (ps_dec->u1_recon_mb_grp >> u1_mbaff));
632 UWORD16 ui16_lastmbs_widthY =
633 (uc_lastmbs ? (uc_lastmbs << 4) : ((ps_dec->u1_recon_mb_grp
634 >> u1_mbaff) << 4));
635 UWORD16 ui16_lastmbs_widthUV =
636 uc_lastmbs ? (uc_lastmbs << 3) : ((ps_dec->u1_recon_mb_grp
637 >> u1_mbaff) << 3);
638
639 ps_dec->s_tran_addrecon.pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1;
640 ps_dec->s_tran_addrecon.pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2;
641 ps_dec->s_tran_addrecon.pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3;
642
643 ps_dec->s_tran_addrecon.u2_frm_wd_y = ps_dec->u2_frm_wd_y
644 << u1_field_pic_flag;
645 ps_dec->s_tran_addrecon.u2_frm_wd_uv = ps_dec->u2_frm_wd_uv
646 << u1_field_pic_flag;
647
648 if(u1_field_pic_flag)
649 {
650 ui16_lastmbs_widthY += ps_dec->u2_frm_wd_y;
651 ui16_lastmbs_widthUV += ps_dec->u2_frm_wd_uv;
652 }
653
654 /* Normal Increment of Pointer */
655 ps_dec->s_tran_addrecon.u4_inc_y[0] = ((ps_dec->u1_recon_mb_grp << 4)
656 >> u1_mbaff);
657 ps_dec->s_tran_addrecon.u4_inc_uv[0] = ((ps_dec->u1_recon_mb_grp << 4)
658 >> u1_mbaff);
659
660 /* End of Row Increment */
661 ps_dec->s_tran_addrecon.u4_inc_y[1] = (ui16_lastmbs_widthY
662 + (PAD_LEN_Y_H << 1)
663 + ps_dec->s_tran_addrecon.u2_frm_wd_y
664 * ((15 << u1_mbaff) + u1_mbaff));
665 ps_dec->s_tran_addrecon.u4_inc_uv[1] = (ui16_lastmbs_widthUV
666 + (PAD_LEN_UV_H << 2)
667 + ps_dec->s_tran_addrecon.u2_frm_wd_uv
668 * ((15 << u1_mbaff) + u1_mbaff));
669
670 /* Assign picture numbers to each frame/field */
671 /* only once per picture. */
672 ih264d_assign_pic_num(ps_dec);
673 ps_dec->s_tran_addrecon.u2_mv_top_left_inc = (ps_dec->u1_recon_mb_grp
674 << 2) - 1 - (u1_mbaff << 2);
675 ps_dec->s_tran_addrecon.u2_mv_left_inc = ((ps_dec->u1_recon_mb_grp
676 >> u1_mbaff) - 1) << (4 + u1_mbaff);
677 }
678 /**********************************************************************/
679 /* High profile related initialization at pictrue level */
680 /**********************************************************************/
681 if(ps_seq->u1_profile_idc == HIGH_PROFILE_IDC)
682 {
683 if((ps_seq->i4_seq_scaling_matrix_present_flag)
684 || (ps_pps->i4_pic_scaling_matrix_present_flag))
685 {
686 ret = ih264d_form_scaling_matrix_picture(ps_seq, ps_pps, ps_dec);
687 ps_dec->s_high_profile.u1_scaling_present = 1;
688 }
689 else
690 {
691 ret = ih264d_form_default_scaling_matrix(ps_dec);
692 }
693
694 if(ps_pps->i4_transform_8x8_mode_flag)
695 {
696 ps_dec->s_high_profile.u1_transform8x8_present = 1;
697 }
698 }
699 else
700 {
701 ret = ih264d_form_default_scaling_matrix(ps_dec);
702 }
703
704 if(ret != OK)
705 return ret;
706
707 /* required while reading the transform_size_8x8 u4_flag */
708 ps_dec->s_high_profile.u1_direct_8x8_inference_flag =
709 ps_seq->u1_direct_8x8_inference_flag;
710 ps_dec->s_high_profile.s_cavlc_ctxt = ps_dec->s_cavlc_ctxt;
711
712 ps_dec->i1_recon_in_thread3_flag = 1;
713 ps_dec->ps_frame_buf_ip_recon = &ps_dec->s_tran_addrecon;
714 if(ps_dec->u1_separate_parse)
715 {
716 memcpy(&ps_dec->s_tran_addrecon_parse, &ps_dec->s_tran_addrecon,
717 sizeof(tfr_ctxt_t));
718 if(ps_dec->u4_num_cores >= 3 && ps_dec->i1_recon_in_thread3_flag)
719 {
720 memcpy(&ps_dec->s_tran_iprecon, &ps_dec->s_tran_addrecon,
721 sizeof(tfr_ctxt_t));
722 ps_dec->ps_frame_buf_ip_recon = &ps_dec->s_tran_iprecon;
723 }
724 }
725
726
727 ih264d_init_deblk_tfr_ctxt(ps_dec,&(ps_dec->s_pad_mgr), &(ps_dec->s_tran_addrecon),
728 ps_dec->u2_frm_wd_in_mbs, 0);
729
730 ps_dec->ps_cur_deblk_mb = ps_dec->ps_deblk_pic;
731 ps_dec->u4_cur_deblk_mb_num = 0;
732
733 ps_dec->u4_deblk_mb_x = 0;
734 ps_dec->u4_deblk_mb_y = 0;
735 ps_dec->pu4_wt_ofsts = ps_dec->pu4_wts_ofsts_mat;
736
737 ps_dec->u4_first_slice_in_pic = 0;
738 H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex);
739 return OK;
740 }
741
742 /*!
743 **************************************************************************
744 * \if Function name : ih264d_deblock_display \endif
745 *
746 * \brief : The function callls the deblocking routine and manages
747 : the Recon buffers and displays .
748 * \return : Nothing
749 *
750 **************************************************************************
751 */
ih264d_end_of_pic_dispbuf_mgr(dec_struct_t * ps_dec)752 WORD32 ih264d_end_of_pic_dispbuf_mgr(dec_struct_t * ps_dec)
753 {
754 dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice;
755 UWORD8 u1_num_of_users = 0;
756 WORD32 ret;
757
758 H264_MUTEX_LOCK(&ps_dec->process_disp_mutex);
759 if(1)
760 {
761
762 {
763 ih264d_delete_nonref_nondisplay_pics(ps_dec->ps_dpb_mgr);
764 if(ps_cur_slice->u1_mmco_equalto5
765 || (ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL))
766 {
767 ps_dec->ps_cur_pic->i4_poc = 0;
768 if(ps_dec->u2_total_mbs_coded
769 == (ps_dec->ps_cur_sps->u2_max_mb_addr + 1))
770 ih264d_reset_ref_bufs(ps_dec->ps_dpb_mgr);
771 ih264d_release_display_bufs(ps_dec);
772 }
773 if(IVD_DECODE_FRAME_OUT != ps_dec->e_frm_out_mode)
774 {
775 ret = ih264d_assign_display_seq(ps_dec);
776 if(ret != OK)
777 return ret;
778 }
779 }
780
781 if(ps_cur_slice->u1_nal_ref_idc)
782 {
783 /* Mark pic buf as needed for reference */
784 ih264_buf_mgr_set_status((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
785 ps_dec->u1_pic_buf_id,
786 BUF_MGR_REF);
787 /* Mark mv buf as needed for reference */
788 ih264_buf_mgr_set_status((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
789 ps_dec->as_buf_id_info_map[ps_dec->u1_pic_buf_id].mv_buf_id,
790 BUF_MGR_REF);
791 ps_dec->au1_pic_buf_ref_flag[ps_dec->u1_pic_buf_id] = 1;
792 }
793
794 /* 420 consumer */
795 /* Increment the number of users by 1 for display based upon */
796 /*the SEEK KEY FRAME control sent to decoder */
797 if(((0 == ps_dec->u1_last_pic_not_decoded)
798 && (0
799 == (ps_dec->ps_cur_pic->u4_pack_slc_typ
800 & ps_dec->u4_skip_frm_mask)))
801 || (ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL))
802 {
803 /* Mark pic buf as needed for display */
804 ih264_buf_mgr_set_status((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
805 ps_dec->u1_pic_buf_id,
806 BUF_MGR_IO);
807
808 }
809
810 if(!ps_cur_slice->u1_field_pic_flag
811 || ((TOP_FIELD_ONLY | BOT_FIELD_ONLY)
812 != ps_dec->u1_top_bottom_decoded))
813 {
814 pic_buffer_t *ps_cur_pic = ps_dec->ps_cur_pic;
815 ps_cur_pic->u2_disp_width = ps_dec->u2_disp_width;
816 ps_cur_pic->u2_disp_height = ps_dec->u2_disp_height >> 1;
817
818 ps_cur_pic->u2_crop_offset_y = ps_dec->u2_crop_offset_y;
819 ps_cur_pic->u2_crop_offset_uv = ps_dec->u2_crop_offset_uv;
820 ps_cur_pic->u1_pic_type = 0;
821 {
822 WORD64 i8_display_poc;
823 i8_display_poc = (WORD64)ps_dec->i4_prev_max_display_seq +
824 ps_dec->ps_cur_pic->i4_poc;
825 if(IS_OUT_OF_RANGE_S32(i8_display_poc))
826 {
827 ps_dec->i4_prev_max_display_seq = 0;
828 }
829 }
830 ret = ih264d_insert_pic_in_display_list(
831 ps_dec->ps_dpb_mgr,
832 ps_dec->u1_pic_buf_id,
833 ps_dec->i4_prev_max_display_seq
834 + ps_dec->ps_cur_pic->i4_poc,
835 ps_dec->ps_cur_pic->i4_frame_num);
836 if(ret != OK)
837 return ret;
838
839 {
840 ivd_video_decode_op_t * ps_dec_output =
841 (ivd_video_decode_op_t *)ps_dec->pv_dec_out;
842
843 ps_dec_output->u4_frame_decoded_flag = 1;
844 }
845 if(ps_dec->au1_pic_buf_ref_flag[ps_dec->u1_pic_buf_id] == 0)
846 {
847 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
848 ps_dec->as_buf_id_info_map[ps_dec->u1_pic_buf_id].mv_buf_id,
849 BUF_MGR_REF);
850 ps_dec->au1_pic_buf_ref_flag[ps_dec->u1_pic_buf_id] = 0;
851
852 }
853 }
854 else
855 {
856 H264_DEC_DEBUG_PRINT("pic not inserted display %d %d\n",
857 ps_cur_slice->u1_field_pic_flag,
858 ps_dec->u1_second_field);
859 }
860
861 if(!ps_cur_slice->u1_field_pic_flag
862 || ((TOP_FIELD_ONLY | BOT_FIELD_ONLY)
863 == ps_dec->u1_top_bottom_decoded))
864 {
865 if(IVD_DECODE_FRAME_OUT == ps_dec->e_frm_out_mode)
866 {
867 ret = ih264d_assign_display_seq(ps_dec);
868 if(ret != OK)
869 return ret;
870 }
871 }
872 }
873
874 H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex);
875
876 return OK;
877 }
878
ih264d_err_pic_dispbuf_mgr(dec_struct_t * ps_dec)879 void ih264d_err_pic_dispbuf_mgr(dec_struct_t *ps_dec)
880 {
881 dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice;
882 ivd_video_decode_op_t * ps_dec_output =
883 (ivd_video_decode_op_t *)ps_dec->pv_dec_out;
884
885 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
886 ps_dec->u1_pic_buf_id,
887 BUF_MGR_REF);
888 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_mv_buf_mgr,
889 ps_dec->as_buf_id_info_map[ps_dec->u1_pic_buf_id].mv_buf_id,
890 BUF_MGR_REF);
891 ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr,
892 ps_dec->u1_pic_buf_id,
893 BUF_MGR_IO);
894 }
895
ih264d_deblock_picture(void * ptr)896 void ih264d_deblock_picture(void *ptr)
897 {
898 dec_struct_t *ps_dec = (dec_struct_t *)ptr;
899
900 {
901 /*Deblock picture only if all the mb's in the frame have been decoded*/
902 if(ps_dec->u1_pic_decode_done == 1)
903 {
904 if(ps_dec->ps_cur_slice->u1_mbaff_frame_flag
905 || ps_dec->ps_cur_slice->u1_field_pic_flag)
906 {
907 ps_dec->p_DeblockPicture[ps_dec->ps_cur_slice->u1_mbaff_frame_flag](
908 ps_dec);
909 }
910 else
911
912 {
913
914 ih264d_deblock_picture_progressive(ps_dec);
915 }
916
917 }
918 }
919
920 }
921
922 /*!
923 **************************************************************************
924 * \if Function name : ih264d_deblock_display \endif
925 *
926 * \brief : The function callls the deblocking routine and manages
927 : the Recon buffers and displays .
928 * \return : Nothing
929 *
930 **************************************************************************
931 */
ih264d_deblock_display(dec_struct_t * ps_dec)932 WORD32 ih264d_deblock_display(dec_struct_t *ps_dec)
933 {
934 WORD32 ret;
935 /* Call deblocking */
936 ih264d_deblock_picture(ps_dec);
937
938 ret = ih264d_end_of_pic_dispbuf_mgr(ps_dec);
939 if(ret != OK)
940 return ret;
941
942 return OK;
943 }
944
945 /*
946 *!
947 **************************************************************************
948 * \if Function name : EndofPoc \endif
949 *
950 * \brief
951 * EndofPoc Processing
952 *
953 * \return
954 * 0 on Success and Error code otherwise
955 **************************************************************************
956 */
957
ih264d_end_of_pic(dec_struct_t * ps_dec)958 WORD32 ih264d_end_of_pic(dec_struct_t *ps_dec)
959 {
960 dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice;
961 WORD32 ret;
962
963 {
964 dec_err_status_t * ps_err = ps_dec->ps_dec_err_status;
965 if(ps_err->u1_err_flag & REJECT_CUR_PIC)
966 {
967 ih264d_err_pic_dispbuf_mgr(ps_dec);
968 return ERROR_NEW_FRAME_EXPECTED;
969 }
970 }
971
972 H264_MUTEX_LOCK(&ps_dec->process_disp_mutex);
973 ret = ih264d_end_of_pic_processing(ps_dec);
974 if(ret != OK)
975 return ret;
976 /*--------------------------------------------------------------------*/
977 /* ih264d_decode_pic_order_cnt - calculate the Pic Order Cnt */
978 /* Needed to detect end of picture */
979 /*--------------------------------------------------------------------*/
980
981 H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex);
982
983 return OK;
984 }
985
986
987 /*!
988 **************************************************************************
989 * \if Function name : ih264d_fix_error_in_dpb \endif
990 *
991 * \brief
992 * fix error in DPB
993 *
994 * \return
995 * Number of node(s) deleted
996 **************************************************************************
997 */
998
ih264d_fix_error_in_dpb(dec_struct_t * ps_dec)999 WORD32 ih264d_fix_error_in_dpb(dec_struct_t *ps_dec)
1000 {
1001 /*--------------------------------------------------------------------*/
1002 /* If there is common node in lt_list and st_list then delete it from */
1003 /* st_list */
1004 /*--------------------------------------------------------------------*/
1005 UWORD8 no_of_nodes_deleted = 0;
1006 UWORD8 lt_ref_num = ps_dec->ps_dpb_mgr->u1_num_lt_ref_bufs;
1007 struct dpb_info_t *ps_lt_curr_dpb = ps_dec->ps_dpb_mgr->ps_dpb_ht_head;
1008 while(lt_ref_num && ps_lt_curr_dpb)
1009 {
1010 if(ps_dec->ps_dpb_mgr->ps_dpb_st_head
1011 && ((ps_lt_curr_dpb->s_bot_field.u1_reference_info
1012 | ps_lt_curr_dpb->s_top_field.u1_reference_info)
1013 == (IS_SHORT_TERM | IS_LONG_TERM)))
1014 {
1015 struct dpb_info_t *ps_st_next_dpb = ps_dec->ps_dpb_mgr->ps_dpb_st_head;
1016 struct dpb_info_t *ps_st_curr_dpb = ps_dec->ps_dpb_mgr->ps_dpb_st_head;
1017 UWORD8 st_ref_num = ps_dec->ps_dpb_mgr->u1_num_st_ref_bufs;
1018 while(st_ref_num && ps_st_curr_dpb)
1019 {
1020 if(ps_st_curr_dpb == ps_lt_curr_dpb)
1021 {
1022 if(st_ref_num == ps_dec->ps_dpb_mgr->u1_num_st_ref_bufs)
1023 {
1024 ps_dec->ps_dpb_mgr->ps_dpb_st_head =
1025 ps_dec->ps_dpb_mgr->ps_dpb_st_head->ps_prev_short;
1026 ps_st_curr_dpb = ps_dec->ps_dpb_mgr->ps_dpb_st_head;
1027 }
1028 else
1029 {
1030 ps_st_next_dpb->ps_prev_short = ps_st_curr_dpb->ps_prev_short;
1031 }
1032 ps_dec->ps_dpb_mgr->u1_num_st_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 the current slice is not a field or frame number of the current
1311 * slice doesn't match with previous slice, and decoder is expecting
1312 * to decode a field i.e. ps_dec->u1_top_bottom_decoded is not 0 and
1313 * is not (TOP_FIELD_ONLY | BOT_FIELD_ONLY), treat it as a dangling
1314 * field */
1315 if((u1_field_pic_flag == 0 || u2_frame_num != ps_dec->u2_prv_frame_num)
1316 && ps_dec->u1_top_bottom_decoded != 0
1317 && ps_dec->u1_top_bottom_decoded
1318 != (TOP_FIELD_ONLY | BOT_FIELD_ONLY))
1319 {
1320 ps_dec->u1_dangling_field = 1;
1321 if(ps_dec->u4_first_slice_in_pic)
1322 {
1323 // first slice - dangling field
1324 prev_slice_err = 1;
1325 }
1326 else
1327 {
1328 // last slice - dangling field
1329 prev_slice_err = 2;
1330 }
1331
1332 if(ps_dec->u1_top_bottom_decoded ==TOP_FIELD_ONLY)
1333 ps_cur_slice->u1_bottom_field_flag = 1;
1334 else
1335 ps_cur_slice->u1_bottom_field_flag = 0;
1336
1337 num_mb_skipped = (ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs)
1338 - ps_dec->u2_total_mbs_coded;
1339 ps_cur_poc = &ps_dec->s_cur_pic_poc;
1340
1341 u1_is_idr_slice = ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL;
1342 }
1343 else if(ps_dec->u4_first_slice_in_pic)
1344 {
1345 if(u2_first_mb_in_slice > 0)
1346 {
1347 // first slice - missing/header corruption
1348 prev_slice_err = 1;
1349 num_mb_skipped = u2_first_mb_in_slice << u1_mbaff;
1350 ps_cur_poc = &s_tmp_poc;
1351
1352 // initializing slice parameters
1353 ps_cur_slice->u4_idr_pic_id = u4_idr_pic_id;
1354 ps_cur_slice->u1_field_pic_flag = u1_field_pic_flag;
1355 ps_cur_slice->u1_bottom_field_flag = u1_bottom_field_flag;
1356 ps_cur_slice->i4_pic_order_cnt_lsb =
1357 s_tmp_poc.i4_pic_order_cnt_lsb;
1358 ps_cur_slice->u1_nal_unit_type = u1_nal_unit_type;
1359 ps_cur_slice->u1_redundant_pic_cnt = u1_redundant_pic_cnt;
1360 ps_cur_slice->u1_nal_ref_idc = u1_nal_ref_idc;
1361 ps_cur_slice->u1_pic_order_cnt_type = u1_pic_order_cnt_type;
1362 ps_cur_slice->u1_mbaff_frame_flag = ps_seq->u1_mb_aff_flag
1363 && (!u1_field_pic_flag);
1364 }
1365 }
1366 else
1367 {
1368 /* since i1_is_end_of_poc is set ,means new frame num is encountered. so conceal the current frame
1369 * completely */
1370 prev_slice_err = 2;
1371 num_mb_skipped = (ps_dec->u2_frm_ht_in_mbs
1372 * ps_dec->u2_frm_wd_in_mbs)
1373 - ps_dec->u2_total_mbs_coded;
1374 ps_cur_poc = &s_tmp_poc;
1375 }
1376 }
1377 else
1378 {
1379 if((u2_first_mb_in_slice << u1_mbaff) > ps_dec->u2_total_mbs_coded)
1380 {
1381 // previous slice - missing/corruption
1382 prev_slice_err = 2;
1383 num_mb_skipped = (u2_first_mb_in_slice << u1_mbaff)
1384 - ps_dec->u2_total_mbs_coded;
1385 ps_cur_poc = &s_tmp_poc;
1386 }
1387 else if((u2_first_mb_in_slice << u1_mbaff) < ps_dec->u2_total_mbs_coded)
1388 {
1389 return ERROR_CORRUPTED_SLICE;
1390 }
1391 }
1392
1393 if(prev_slice_err)
1394 {
1395 ret = ih264d_mark_err_slice_skip(ps_dec, num_mb_skipped, u1_is_idr_slice, u2_frame_num, ps_cur_poc, prev_slice_err);
1396
1397 if(ps_dec->u1_dangling_field == 1)
1398 {
1399 ps_dec->u1_second_field = 1 - ps_dec->u1_second_field;
1400 ps_dec->u1_first_slice_in_stream = 0;
1401 ps_dec->u1_top_bottom_decoded = TOP_FIELD_ONLY | BOT_FIELD_ONLY;
1402 return ERROR_DANGLING_FIELD_IN_PIC;
1403 }
1404
1405 if(prev_slice_err == 2)
1406 {
1407 ps_dec->u1_first_slice_in_stream = 0;
1408 return ERROR_INCOMPLETE_FRAME;
1409 }
1410
1411 if(ps_dec->u2_total_mbs_coded
1412 >= ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs)
1413 {
1414 /* return if all MBs in frame are parsed*/
1415 ps_dec->u1_first_slice_in_stream = 0;
1416 return ERROR_IN_LAST_SLICE_OF_PIC;
1417 }
1418
1419 if(ps_dec->ps_dec_err_status->u1_err_flag & REJECT_CUR_PIC)
1420 {
1421 ih264d_err_pic_dispbuf_mgr(ps_dec);
1422 return ERROR_NEW_FRAME_EXPECTED;
1423 }
1424
1425 if(ret != OK)
1426 return ret;
1427
1428 i1_is_end_of_poc = 0;
1429 }
1430
1431 if(u1_field_pic_flag)
1432 {
1433 ps_dec->u2_prv_frame_num = u2_frame_num;
1434 }
1435
1436 if(ps_cur_slice->u1_mmco_equalto5)
1437 {
1438 WORD64 i8_result;
1439 WORD32 i4_temp_poc;
1440 WORD32 i4_top_field_order_poc, i4_bot_field_order_poc;
1441
1442 if(!ps_cur_slice->u1_field_pic_flag) // or a complementary field pair
1443 {
1444 i4_top_field_order_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt;
1445 i4_bot_field_order_poc =
1446 ps_dec->ps_cur_pic->i4_bottom_field_order_cnt;
1447 i4_temp_poc = MIN(i4_top_field_order_poc,
1448 i4_bot_field_order_poc);
1449 }
1450 else if(!ps_cur_slice->u1_bottom_field_flag)
1451 i4_temp_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt;
1452 else
1453 i4_temp_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt;
1454
1455 i8_result = (WORD64)i4_temp_poc - ps_dec->ps_cur_pic->i4_top_field_order_cnt;
1456 if(IS_OUT_OF_RANGE_S32(i8_result))
1457 {
1458 return ERROR_INV_POC;
1459 }
1460 ps_dec->ps_cur_pic->i4_top_field_order_cnt = i8_result;
1461 i8_result = (WORD64)i4_temp_poc
1462 - ps_dec->ps_cur_pic->i4_bottom_field_order_cnt;
1463 if(IS_OUT_OF_RANGE_S32(i8_result))
1464 {
1465 return ERROR_INV_POC;
1466 }
1467 ps_dec->ps_cur_pic->i4_bottom_field_order_cnt = i8_result;
1468 ps_dec->ps_cur_pic->i4_poc = i4_temp_poc;
1469 ps_dec->ps_cur_pic->i4_avg_poc = i4_temp_poc;
1470 }
1471 if(ps_dec->u4_first_slice_in_pic)
1472 {
1473 ret = ih264d_decode_pic_order_cnt(u1_is_idr_slice, u2_frame_num,
1474 &ps_dec->s_prev_pic_poc,
1475 &s_tmp_poc, ps_cur_slice, ps_pps,
1476 u1_nal_ref_idc,
1477 u1_bottom_field_flag,
1478 u1_field_pic_flag, &i4_poc);
1479 if(ret != OK)
1480 return ret;
1481 /* Display seq no calculations */
1482 if(i4_poc >= ps_dec->i4_max_poc)
1483 ps_dec->i4_max_poc = i4_poc;
1484 /* IDR Picture or POC wrap around */
1485 if(i4_poc == 0)
1486 {
1487 WORD64 i8_temp;
1488 i8_temp = (WORD64)ps_dec->i4_prev_max_display_seq
1489 + ps_dec->i4_max_poc
1490 + ps_dec->u1_max_dec_frame_buffering + 1;
1491 /*If i4_prev_max_display_seq overflows integer range, reset it */
1492 ps_dec->i4_prev_max_display_seq = IS_OUT_OF_RANGE_S32(i8_temp)?
1493 0 : i8_temp;
1494 ps_dec->i4_max_poc = 0;
1495 }
1496 }
1497
1498 /* Increment only if the current slice has atleast 1 more MB */
1499 if (ps_dec->u4_first_slice_in_pic == 0 &&
1500 (ps_dec->ps_parse_cur_slice->u4_first_mb_in_slice <
1501 (UWORD32)(ps_dec->u2_total_mbs_coded >> ps_dec->ps_cur_slice->u1_mbaff_frame_flag)))
1502 {
1503 ps_dec->ps_parse_cur_slice++;
1504 ps_dec->u2_cur_slice_num++;
1505 // in the case of single core increment ps_decode_cur_slice
1506 if(ps_dec->u1_separate_parse == 0)
1507 {
1508 ps_dec->ps_decode_cur_slice++;
1509 }
1510 }
1511
1512 ps_dec->u1_slice_header_done = 0;
1513
1514 /*--------------------------------------------------------------------*/
1515 /* Copy the values read from the bitstream to the slice header and then*/
1516 /* If the slice is first slice in picture, then do Start of Picture */
1517 /* processing. */
1518 /*--------------------------------------------------------------------*/
1519 ps_cur_slice->i4_delta_pic_order_cnt[0] = i_delta_poc[0];
1520 ps_cur_slice->i4_delta_pic_order_cnt[1] = i_delta_poc[1];
1521 ps_cur_slice->u4_idr_pic_id = u4_idr_pic_id;
1522 ps_cur_slice->u2_first_mb_in_slice = u2_first_mb_in_slice;
1523 ps_cur_slice->u1_field_pic_flag = u1_field_pic_flag;
1524 ps_cur_slice->u1_bottom_field_flag = u1_bottom_field_flag;
1525 ps_cur_slice->u1_slice_type = u1_slice_type;
1526 ps_cur_slice->i4_pic_order_cnt_lsb = s_tmp_poc.i4_pic_order_cnt_lsb;
1527
1528 ps_cur_slice->u1_nal_unit_type = u1_nal_unit_type;
1529 ps_cur_slice->u1_redundant_pic_cnt = u1_redundant_pic_cnt;
1530 ps_cur_slice->u1_nal_ref_idc = u1_nal_ref_idc;
1531 ps_cur_slice->u1_pic_order_cnt_type = u1_pic_order_cnt_type;
1532
1533 if(ps_seq->u1_frame_mbs_only_flag)
1534 ps_cur_slice->u1_direct_8x8_inference_flag =
1535 ps_seq->u1_direct_8x8_inference_flag;
1536 else
1537 ps_cur_slice->u1_direct_8x8_inference_flag = 1;
1538
1539 if(u1_slice_type == B_SLICE)
1540 {
1541 ps_cur_slice->u1_direct_spatial_mv_pred_flag = ih264d_get_bit_h264(
1542 ps_bitstrm);
1543 COPYTHECONTEXT("SH: direct_spatial_mv_pred_flag",
1544 ps_cur_slice->u1_direct_spatial_mv_pred_flag);
1545
1546 if(ps_cur_slice->u1_direct_spatial_mv_pred_flag)
1547 ps_cur_slice->pf_decodeDirect = ih264d_decode_spatial_direct;
1548 else
1549 ps_cur_slice->pf_decodeDirect = ih264d_decode_temporal_direct;
1550 if(!((ps_pps->ps_sps->u1_mb_aff_flag) && (!u1_field_pic_flag)))
1551 ps_dec->pf_mvpred = ih264d_mvpred_nonmbaffB;
1552 }
1553 else
1554 {
1555 if(!((ps_pps->ps_sps->u1_mb_aff_flag) && (!u1_field_pic_flag)))
1556 ps_dec->pf_mvpred = ih264d_mvpred_nonmbaff;
1557 }
1558
1559 if(ps_dec->u4_first_slice_in_pic)
1560 {
1561 if(u2_first_mb_in_slice == 0)
1562 {
1563 ret = ih264d_start_of_pic(ps_dec, i4_poc, &s_tmp_poc, u2_frame_num, ps_pps);
1564 if(ret != OK)
1565 return ret;
1566 }
1567
1568 ps_dec->u4_output_present = 0;
1569
1570 {
1571 ih264d_get_next_display_field(ps_dec,
1572 ps_dec->ps_out_buffer,
1573 &(ps_dec->s_disp_op));
1574 /* If error code is non-zero then there is no buffer available for display,
1575 hence avoid format conversion */
1576
1577 if(0 != ps_dec->s_disp_op.u4_error_code)
1578 {
1579 ps_dec->u4_fmt_conv_cur_row = ps_dec->s_disp_frame_info.u4_y_ht;
1580 }
1581 else
1582 ps_dec->u4_output_present = 1;
1583 }
1584 if(ps_dec->u1_separate_parse == 1)
1585 {
1586 if(ps_dec->u4_dec_thread_created == 0)
1587 {
1588 ithread_create(ps_dec->pv_dec_thread_handle, NULL,
1589 (void *)ih264d_decode_picture_thread,
1590 (void *)ps_dec);
1591
1592 ps_dec->u4_dec_thread_created = 1;
1593 }
1594 #ifdef KEEP_THREADS_ACTIVE
1595 ret = ithread_mutex_lock(ps_dec->apv_proc_start_mutex[0]);
1596 RETURN_IF((ret != IV_SUCCESS), ret);
1597
1598 ps_dec->ai4_process_start[0] = PROC_START;
1599 ret = ithread_cond_signal(ps_dec->apv_proc_start_condition[0]);
1600 RETURN_IF((ret != IV_SUCCESS), ret);
1601
1602 ret = ithread_mutex_unlock(ps_dec->apv_proc_start_mutex[0]);
1603 RETURN_IF((ret != IV_SUCCESS), ret);
1604 #endif
1605
1606 if((ps_dec->u4_num_cores == 3) &&
1607 ((ps_dec->u4_app_disable_deblk_frm == 0) || ps_dec->i1_recon_in_thread3_flag)
1608 && (ps_dec->u4_bs_deblk_thread_created == 0))
1609 {
1610 ps_dec->u4_start_recon_deblk = 0;
1611 ithread_create(ps_dec->pv_bs_deblk_thread_handle, NULL,
1612 (void *)ih264d_recon_deblk_thread,
1613 (void *)ps_dec);
1614 ps_dec->u4_bs_deblk_thread_created = 1;
1615 }
1616 #ifdef KEEP_THREADS_ACTIVE
1617 if (ps_dec->u4_bs_deblk_thread_created)
1618 {
1619 ret = ithread_mutex_lock(ps_dec->apv_proc_start_mutex[1]);
1620 RETURN_IF((ret != IV_SUCCESS), ret);
1621
1622 ps_dec->ai4_process_start[1] = PROC_START;
1623 ret = ithread_cond_signal(ps_dec->apv_proc_start_condition[1]);
1624 RETURN_IF((ret != IV_SUCCESS), ret);
1625
1626 ret = ithread_mutex_unlock(ps_dec->apv_proc_start_mutex[1]);
1627 RETURN_IF((ret != IV_SUCCESS), ret);
1628 }
1629 #endif
1630 }
1631
1632 }
1633
1634 /* INITIALIZATION of fn ptrs for MC and formMbPartInfo functions */
1635 {
1636 UWORD8 uc_nofield_nombaff;
1637
1638
1639
1640 uc_nofield_nombaff = ((ps_dec->ps_cur_slice->u1_field_pic_flag == 0)
1641 && (ps_dec->ps_cur_slice->u1_mbaff_frame_flag == 0)
1642 && (u1_slice_type != B_SLICE)
1643 && (ps_dec->ps_cur_pps->u1_wted_pred_flag == 0));
1644
1645 /* Initialise MC and formMbPartInfo fn ptrs one time based on profile_idc */
1646
1647 if(uc_nofield_nombaff)
1648 {
1649 ps_dec->p_form_mb_part_info = ih264d_form_mb_part_info_bp;
1650 ps_dec->p_motion_compensate = ih264d_motion_compensate_bp;
1651 }
1652 else
1653 {
1654 ps_dec->p_form_mb_part_info = ih264d_form_mb_part_info_mp;
1655 ps_dec->p_motion_compensate = ih264d_motion_compensate_mp;
1656 }
1657
1658
1659 }
1660
1661 /*
1662 * Decide whether to decode the current picture or not
1663 */
1664 {
1665 dec_err_status_t * ps_err = ps_dec->ps_dec_err_status;
1666 if(ps_err->u4_frm_sei_sync == u2_frame_num)
1667 {
1668 ps_err->u1_err_flag = ACCEPT_ALL_PICS;
1669 ps_err->u4_frm_sei_sync = SYNC_FRM_DEFAULT;
1670 }
1671 ps_err->u4_cur_frm = u2_frame_num;
1672 }
1673
1674 /* Decision for decoding if the picture is to be skipped */
1675 {
1676 WORD32 i4_skip_b_pic, i4_skip_p_pic;
1677
1678 i4_skip_b_pic = (ps_dec->u4_skip_frm_mask & B_SLC_BIT)
1679 && (B_SLICE == u1_slice_type) && (0 == u1_nal_ref_idc);
1680
1681 i4_skip_p_pic = (ps_dec->u4_skip_frm_mask & P_SLC_BIT)
1682 && (P_SLICE == u1_slice_type) && (0 == u1_nal_ref_idc);
1683
1684 /**************************************************************/
1685 /* Skip the B picture if skip mask is set for B picture and */
1686 /* Current B picture is a non reference B picture or there is */
1687 /* no user for reference B picture */
1688 /**************************************************************/
1689 if(i4_skip_b_pic)
1690 {
1691 ps_dec->ps_cur_pic->u4_pack_slc_typ |= B_SLC_BIT;
1692 /* Don't decode the picture in SKIP-B mode if that picture is B */
1693 /* and also it is not to be used as a reference picture */
1694 ps_dec->u1_last_pic_not_decoded = 1;
1695
1696 return OK;
1697 }
1698 /**************************************************************/
1699 /* Skip the P picture if skip mask is set for P picture and */
1700 /* Current P picture is a non reference P picture or there is */
1701 /* no user for reference P picture */
1702 /**************************************************************/
1703 if(i4_skip_p_pic)
1704 {
1705 ps_dec->ps_cur_pic->u4_pack_slc_typ |= P_SLC_BIT;
1706 /* Don't decode the picture in SKIP-P mode if that picture is P */
1707 /* and also it is not to be used as a reference picture */
1708 ps_dec->u1_last_pic_not_decoded = 1;
1709
1710 return OK;
1711 }
1712 }
1713
1714 {
1715 UWORD16 u2_mb_x, u2_mb_y;
1716
1717 ps_dec->i4_submb_ofst = ((u2_first_mb_in_slice
1718 << ps_cur_slice->u1_mbaff_frame_flag) * SUB_BLK_SIZE)
1719 - SUB_BLK_SIZE;
1720 if(u2_first_mb_in_slice)
1721 {
1722 UWORD8 u1_mb_aff;
1723 UWORD8 u1_field_pic;
1724 UWORD16 u2_frm_wd_in_mbs;
1725 u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs;
1726 u1_mb_aff = ps_cur_slice->u1_mbaff_frame_flag;
1727 u1_field_pic = ps_cur_slice->u1_field_pic_flag;
1728
1729 {
1730 UWORD32 x_offset;
1731 UWORD32 y_offset;
1732 UWORD32 u4_frame_stride;
1733 tfr_ctxt_t *ps_trns_addr; // = &ps_dec->s_tran_addrecon_parse;
1734
1735 if(ps_dec->u1_separate_parse)
1736 {
1737 ps_trns_addr = &ps_dec->s_tran_addrecon_parse;
1738 }
1739 else
1740 {
1741 ps_trns_addr = &ps_dec->s_tran_addrecon;
1742 }
1743 u2_mb_x = MOD(u2_first_mb_in_slice, u2_frm_wd_in_mbs);
1744 u2_mb_y = DIV(u2_first_mb_in_slice, u2_frm_wd_in_mbs);
1745
1746 u2_mb_y <<= u1_mb_aff;
1747
1748 if((u2_mb_x > u2_frm_wd_in_mbs - 1)
1749 || (u2_mb_y > ps_dec->u2_frm_ht_in_mbs - 1))
1750 {
1751 return ERROR_CORRUPTED_SLICE;
1752 }
1753
1754 u4_frame_stride = ps_dec->u2_frm_wd_y << u1_field_pic;
1755 x_offset = u2_mb_x << 4;
1756 y_offset = (u2_mb_y * u4_frame_stride) << 4;
1757
1758 ps_trns_addr->pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1 + x_offset
1759 + y_offset;
1760
1761 u4_frame_stride = ps_dec->u2_frm_wd_uv << u1_field_pic;
1762 x_offset >>= 1;
1763 y_offset = (u2_mb_y * u4_frame_stride) << 3;
1764
1765 x_offset *= YUV420SP_FACTOR;
1766
1767 ps_trns_addr->pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2 + x_offset
1768 + y_offset;
1769 ps_trns_addr->pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3 + x_offset
1770 + y_offset;
1771
1772 ps_trns_addr->pu1_mb_y = ps_trns_addr->pu1_dest_y;
1773 ps_trns_addr->pu1_mb_u = ps_trns_addr->pu1_dest_u;
1774 ps_trns_addr->pu1_mb_v = ps_trns_addr->pu1_dest_v;
1775
1776
1777 // assign the deblock structure pointers to start of slice
1778 if(ps_dec->u1_separate_parse == 1)
1779 {
1780 ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic
1781 + (u2_first_mb_in_slice << u1_mb_aff);
1782 }
1783 else
1784 {
1785 ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic
1786 + (u2_first_mb_in_slice << u1_mb_aff);
1787 }
1788
1789 ps_dec->u2_cur_mb_addr = (u2_first_mb_in_slice << u1_mb_aff);
1790
1791 ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv
1792 + ((u2_first_mb_in_slice << u1_mb_aff) << 4);
1793 }
1794 }
1795 else
1796 {
1797 tfr_ctxt_t *ps_trns_addr;
1798
1799 if(ps_dec->u1_separate_parse)
1800 {
1801 ps_trns_addr = &ps_dec->s_tran_addrecon_parse;
1802 }
1803 else
1804 {
1805 ps_trns_addr = &ps_dec->s_tran_addrecon;
1806 }
1807
1808 u2_mb_x = 0xffff;
1809 u2_mb_y = 0;
1810 // assign the deblock structure pointers to start of slice
1811 ps_dec->u2_cur_mb_addr = 0;
1812 ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic;
1813 ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv;
1814 ps_trns_addr->pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1;
1815 ps_trns_addr->pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2;
1816 ps_trns_addr->pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3;
1817
1818 ps_trns_addr->pu1_mb_y = ps_trns_addr->pu1_dest_y;
1819 ps_trns_addr->pu1_mb_u = ps_trns_addr->pu1_dest_u;
1820 ps_trns_addr->pu1_mb_v = ps_trns_addr->pu1_dest_v;
1821
1822 }
1823
1824 ps_dec->ps_part = ps_dec->ps_parse_part_params;
1825
1826 ps_dec->u2_mbx =
1827 (MOD(u2_first_mb_in_slice - 1, ps_seq->u2_frm_wd_in_mbs));
1828 ps_dec->u2_mby =
1829 (DIV(u2_first_mb_in_slice - 1, ps_seq->u2_frm_wd_in_mbs));
1830 ps_dec->u2_mby <<= ps_cur_slice->u1_mbaff_frame_flag;
1831 ps_dec->i2_prev_slice_mbx = ps_dec->u2_mbx;
1832 ps_dec->i2_prev_slice_mby = ps_dec->u2_mby;
1833 }
1834
1835 /* RBSP stop bit is used for CABAC decoding*/
1836 ps_bitstrm->u4_max_ofst += ps_dec->ps_cur_pps->u1_entropy_coding_mode;
1837
1838 ps_dec->u1_B = (u1_slice_type == B_SLICE);
1839 ps_dec->u4_next_mb_skip = 0;
1840
1841 ps_dec->ps_parse_cur_slice->u4_first_mb_in_slice =
1842 ps_dec->ps_cur_slice->u2_first_mb_in_slice;
1843 ps_dec->ps_parse_cur_slice->slice_type =
1844 ps_dec->ps_cur_slice->u1_slice_type;
1845
1846
1847 ps_dec->u4_start_recon_deblk = 1;
1848 {
1849 WORD32 num_entries;
1850 WORD32 size;
1851 UWORD8 *pu1_buf;
1852
1853 num_entries = MAX_FRAMES;
1854 if((1 >= ps_dec->ps_cur_sps->u1_num_ref_frames) &&
1855 (0 == ps_dec->i4_display_delay))
1856 {
1857 num_entries = 1;
1858 }
1859 num_entries = ((2 * num_entries) + 1);
1860 num_entries *= 2;
1861
1862
1863 size = num_entries * sizeof(void *);
1864 size += PAD_MAP_IDX_POC * sizeof(void *);
1865
1866 pu1_buf = (UWORD8 *)ps_dec->pv_map_ref_idx_to_poc_buf;
1867 pu1_buf += size * ps_dec->u2_cur_slice_num;
1868 ps_dec->ps_parse_cur_slice->ppv_map_ref_idx_to_poc = ( void *)pu1_buf;
1869 }
1870
1871 if(ps_dec->u1_separate_parse)
1872 {
1873 ps_dec->ps_parse_cur_slice->pv_tu_coeff_data_start = ps_dec->pv_parse_tu_coeff_data;
1874 }
1875 else
1876 {
1877 ps_dec->pv_proc_tu_coeff_data = ps_dec->pv_parse_tu_coeff_data;
1878 }
1879
1880 ret = ih264d_fix_error_in_dpb(ps_dec);
1881 if(ret < 0)
1882 return ERROR_DBP_MANAGER_T;
1883
1884 if(u1_slice_type == I_SLICE)
1885 {
1886 ps_dec->ps_cur_pic->u4_pack_slc_typ |= I_SLC_BIT;
1887
1888 ret = ih264d_parse_islice(ps_dec, u2_first_mb_in_slice);
1889 ps_dec->u1_pr_sl_type = u1_slice_type;
1890 if(ps_dec->i4_pic_type != B_SLICE && ps_dec->i4_pic_type != P_SLICE)
1891 ps_dec->i4_pic_type = I_SLICE;
1892
1893 }
1894 else if(u1_slice_type == P_SLICE)
1895 {
1896 ps_dec->ps_cur_pic->u4_pack_slc_typ |= P_SLC_BIT;
1897 ret = ih264d_parse_pslice(ps_dec, u2_first_mb_in_slice);
1898 ps_dec->u1_pr_sl_type = u1_slice_type;
1899 if(ps_dec->i4_pic_type != B_SLICE)
1900 ps_dec->i4_pic_type = P_SLICE;
1901 }
1902 else if(u1_slice_type == B_SLICE)
1903 {
1904 ps_dec->ps_cur_pic->u4_pack_slc_typ |= B_SLC_BIT;
1905 ret = ih264d_parse_bslice(ps_dec, u2_first_mb_in_slice);
1906 ps_dec->u1_pr_sl_type = u1_slice_type;
1907 ps_dec->i4_pic_type = B_SLICE;
1908 }
1909 else
1910 return ERROR_INV_SLC_TYPE_T;
1911
1912 if(ps_dec->u1_slice_header_done)
1913 {
1914 /* set to zero to indicate a valid slice has been decoded */
1915 ps_dec->u1_first_slice_in_stream = 0;
1916 }
1917
1918 if(ret != OK)
1919 return ret;
1920
1921 if(u1_nal_ref_idc != 0)
1922 {
1923 if(!ps_dec->ps_dpb_cmds->u1_dpb_commands_read)
1924 {
1925 memcpy((void *)ps_dec->ps_dpb_cmds, (void *)(&(ps_dec->s_dpb_cmds_scratch)),
1926 sizeof(dpb_commands_t));
1927 }
1928 }
1929
1930 /* storing last Mb X and MbY of the slice */
1931 ps_dec->i2_prev_slice_mbx = ps_dec->u2_mbx;
1932 ps_dec->i2_prev_slice_mby = ps_dec->u2_mby;
1933
1934 /* End of Picture detection */
1935
1936 if(ps_dec->u2_total_mbs_coded >= (ps_seq->u2_max_mb_addr + 1))
1937 {
1938 ps_dec->u1_pic_decode_done = 1;
1939
1940 }
1941
1942 {
1943 dec_err_status_t * ps_err = ps_dec->ps_dec_err_status;
1944 if((ps_err->u1_err_flag & REJECT_PB_PICS)
1945 && (ps_err->u1_cur_pic_type == PIC_TYPE_I))
1946 {
1947 ps_err->u1_err_flag = ACCEPT_ALL_PICS;
1948 }
1949 }
1950
1951 PRINT_BIN_BIT_RATIO(ps_dec)
1952
1953 return ret;
1954 }
1955