1 /******************************************************************************
2 *
3 * Copyright (C) 2022 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
23 * isvcd_compute_bs.c
24 *
25 * @brief
26 * This file contains bit flags and info on target layer.
27 *
28 * @author
29 * Kishore
30 *
31 * @par List of Functions:
32 * - isvcd_deblk_extract_bit_flags()
33 * - isvcd_fill_bs_ibl()
34 * - isvcd_compute_bs_non_mbaff_target_lyr_no_inter_layer()
35 * - isvcd_compute_bs_non_mbaff()
36 * - isvcd_compute_bs_non_mbaff_target_lyr()
37 * - isvcd_compute_bs_non_mbaff_medial_lyr()
38 *
39 * @remarks
40 * None
41 *
42 *******************************************************************************
43 */
44
45 #include "ih264_typedefs.h"
46 #include "ih264_macros.h"
47 #include "ih264_platform_macros.h"
48 #include "isvcd_structs.h"
49 #include "ih264d_defs.h"
50 #include "ih264d_deblocking.h"
51 #include "string.h"
52 #include "ih264d_debug.h"
53 #include "ih264d_tables.h"
54 UWORD16 ih264d_update_csbp_8x8(UWORD16 u2_luma_csbp);
55 void ih264d_fill_bs2_horz_vert(UWORD32 *pu4_bs, /* Base pointer of BS table */
56 WORD32 u4_left_mb_csbp, /* csbp of left mb */
57 WORD32 u4_top_mb_csbp, /* csbp of top mb */
58 WORD32 u4_cur_mb_csbp, /* csbp of current mb */
59 const UWORD32 *pu4_packed_bs2, const UWORD16 *pu2_4x4_v2h_reorder);
60 const UWORD32 g_au4_extract_set[NUM_SUB_MB_PARTS] = {0x00000000F, 0x0000000F0, 0x000000F00,
61 0x00000F000};
62
63 /** \brief extracts the bits from given offset and packs it to last 4 bits */
isvcd_deblk_extract_bit_flags(UWORD16 u2_bit_field,WORD32 i4_initial_bit_mask)64 UWORD16 isvcd_deblk_extract_bit_flags(UWORD16 u2_bit_field, WORD32 i4_initial_bit_mask)
65 {
66 WORD32 i4_i;
67 WORD32 i4_bit_mask;
68 UWORD16 u2_result = 0;
69
70 i4_bit_mask = i4_initial_bit_mask;
71
72 for(i4_i = 0; i4_i < NUM_SUB_MB_PARTS; i4_i++)
73 {
74 WORD32 i4_bit;
75 /* extract the bits of the last column 4x4 blocks */
76 if(0 == (i4_bit_mask & u2_bit_field))
77 {
78 i4_bit = 0;
79 }
80 else
81 {
82 i4_bit = 1;
83 }
84 /* store the result */
85 u2_result |= i4_bit << i4_i;
86 i4_bit_mask <<= 4;
87
88 } /* end of loop over num sub Mb parts */
89 return (u2_result);
90 }
91
92 /** \brief Fills the BS for edges falling on a IBL boundary */
isvcd_fill_bs_ibl(deblk_mb_t * ps_deblk_mb,UWORD8 u1_top_mb_type,UWORD8 u1_left_mb_type,dec_mb_info_t * ps_cur_mb_info,UWORD16 * pu2_curr_res_luma_csbp,UWORD16 * pu2_left_res_luma_csbp,UWORD16 * pu2_top_res_luma_csbp)93 void isvcd_fill_bs_ibl(deblk_mb_t *ps_deblk_mb, UWORD8 u1_top_mb_type, UWORD8 u1_left_mb_type,
94 dec_mb_info_t *ps_cur_mb_info, UWORD16 *pu2_curr_res_luma_csbp,
95 UWORD16 *pu2_left_res_luma_csbp, UWORD16 *pu2_top_res_luma_csbp)
96 {
97 /*! Flow of the module is as follows */
98 /*! 1. checks if MB edge is falling on IBL boundary */
99 /*! 2. if only Mb edge then it fills the BS based on INTRA or INTER
100 stauts */
101 /*! 3. if the current MB is IBL and neighbours are also neighbours
102 then it uses the current layer t_coeff flag to decide the
103 BS of a particular edge */
104 /*!4. fills the BS for all the edges in curretn MB if IBL */
105
106 UWORD16 u2_top_horz_nnz;
107 UWORD8 u1_top_mb_ibl, u1_left_mb_ibl;
108 UWORD32 i4_i, i4_edge;
109 UWORD8 u1_bs;
110 UWORD8 u1_cnd;
111 UWORD8 u1_top_intra;
112 UWORD8 u1_left_intra;
113 UWORD8 u1_p_nnz, u1_q_nnz;
114 UWORD8 u1_curr_mb_ibl;
115 UWORD32 *pu4_bs_table;
116 UWORD16 u2_curr_nnz;
117 UWORD8 u1_left_mb_nnz = 0, u1_left_nnz;
118 WORD32 i4_horz_start = 0;
119 WORD32 i4_vertical_start = 0;
120
121 pu4_bs_table = &(ps_deblk_mb->u4_bs_table[0]);
122
123 u1_top_mb_ibl = u1_top_mb_type & D_INTRA_IBL;
124 u1_left_mb_ibl = u1_left_mb_type & D_INTRA_IBL;
125
126 u1_curr_mb_ibl = ps_deblk_mb->u1_mb_type & D_INTRA_IBL;
127
128 u1_top_intra = u1_top_mb_type & D_INTRA_MB;
129 u1_left_intra = u1_left_mb_type & D_INTRA_MB;
130
131 /* return if none of the current top and left is IBL */
132 if((0 == u1_curr_mb_ibl) && (0 == u1_top_mb_ibl) && (0 == u1_left_mb_ibl))
133 {
134 return;
135 }
136
137 /* set up the vertical and horz MB edge skip flags */
138 if(0 != u1_curr_mb_ibl)
139 {
140 /* if top is not IBL */
141 if(0 == u1_top_mb_ibl)
142 {
143 i4_horz_start = 1;
144 }
145
146 /* if left in not IBL */
147 if(0 == u1_left_mb_ibl)
148 {
149 i4_vertical_start = 1;
150 }
151 }
152
153 /*******************************************************/
154 /* Fill BS for mb egdex assuming non IBL case */
155 /*******************************************************/
156
157 /* only the MB edges fall across IBL boundary */
158 if((0 != u1_curr_mb_ibl) || (0 != u1_top_mb_ibl) || (0 != u1_left_mb_ibl))
159 {
160 UWORD16 u2_temp, u2_i;
161 u2_temp = *pu2_left_res_luma_csbp;
162 for(u2_i = 0; u2_i < 4; u2_i++)
163 {
164 u1_left_mb_nnz |= ((u2_temp & 0x08) >> (3 - u2_i));
165 u2_temp >>= 4;
166 }
167 u2_curr_nnz = *pu2_curr_res_luma_csbp;
168 u2_top_horz_nnz = *pu2_top_res_luma_csbp >> 12;
169
170 /* top is intra and not ibl */
171 if(0 != u1_top_intra)
172 {
173 pu4_bs_table[0] = 0x04040404;
174 }
175 /* left is intra and not ibl */
176 if(0 != u1_left_intra)
177 {
178 pu4_bs_table[4] = 0x04040404;
179 }
180
181 /* assume neighbours are inter and update bs */
182
183 /* Edge = 0 means Vert Edges and Edge = 1 means Horz edges */
184 for(i4_edge = 0; i4_edge < 2; i4_edge++)
185 {
186 UWORD8 u1_p_nnz, u1_q_nnz;
187 UWORD32 u4_bs_edge = 0;
188 WORD32 i4_bit_mask;
189 WORD32 i4_curr_intra_flag;
190 WORD32 i4_neibor_intra_flag;
191
192 i4_curr_intra_flag = (0 != u1_curr_mb_ibl);
193
194 if(0 != i4_edge)
195 {
196 /* Initialize for the TOP edge */
197 u1_p_nnz = (UWORD8) u2_top_horz_nnz;
198 u1_q_nnz = (UWORD8) (u2_curr_nnz & g_au4_extract_set[0]);
199 i4_neibor_intra_flag = (u1_top_mb_ibl || u1_top_intra);
200 }
201 else
202 {
203 u1_p_nnz = u1_left_mb_nnz;
204 u1_q_nnz = (UWORD8) isvcd_deblk_extract_bit_flags(u2_curr_nnz, 0x01);
205 i4_neibor_intra_flag = (u1_left_mb_ibl || u1_left_intra);
206 }
207
208 i4_bit_mask = 1;
209 /* find bs of 4 edges */
210 for(i4_i = 0; i4_i < 4; i4_i++)
211 {
212 UWORD8 u1_p_nnz_temp, u1_q_nnz_temp;
213
214 u1_p_nnz_temp = (u1_p_nnz & i4_bit_mask);
215 u1_q_nnz_temp = (u1_q_nnz & i4_bit_mask);
216
217 u1_cnd = ((u1_p_nnz_temp && (!i4_neibor_intra_flag)) ||
218 (u1_q_nnz_temp && (!i4_curr_intra_flag)));
219
220 u1_bs = u1_cnd ? 2 : 1;
221
222 /* update the bs of the edge */
223 u4_bs_edge = (u4_bs_edge << 8) + u1_bs;
224 i4_bit_mask <<= 1;
225
226 } /* end of loop over blk edges */
227
228 /* update the bs of edges */
229 if(i4_edge && !u1_top_intra)
230 {
231 pu4_bs_table[0] = u4_bs_edge;
232 }
233 else if(!i4_edge && !u1_left_intra)
234 {
235 pu4_bs_table[4] = u4_bs_edge;
236 }
237 } /* end of loop over v1 vetical and horizontal edge */
238 }
239 /* current MB is IBL */
240 if(0 != u1_curr_mb_ibl)
241 {
242 UWORD16 u2_temp, u2_i;
243 WORD32 i4_bit_mask_edge = 1;
244
245 u1_left_mb_nnz = 0;
246 u2_temp = ps_cur_mb_info->ps_left_mb->u2_luma_csbp;
247 for(u2_i = 0; u2_i < 4; u2_i++)
248 {
249 u1_left_mb_nnz |= ((u2_temp & 0x08) >> (3 - u2_i));
250 u2_temp >>= 4;
251 }
252 u2_curr_nnz = ps_cur_mb_info->ps_curmb->u2_luma_csbp;
253 u2_top_horz_nnz = ps_cur_mb_info->ps_top_mb->u2_luma_csbp >> 12;
254 /* all are IBL edges then use only t_coeff of current layer*/
255 /* loop over all edges */
256 for(i4_edge = 0; i4_edge < 4; i4_edge++)
257 {
258 UWORD16 u2_curr_horz_nnz = 0;
259 WORD32 i4_bit_mask = 1;
260
261 u2_curr_horz_nnz = u2_curr_nnz & g_au4_extract_set[i4_edge];
262
263 u2_curr_horz_nnz = (u2_curr_horz_nnz >> (i4_edge * 4));
264
265 u1_left_nnz = (u1_left_mb_nnz & i4_bit_mask_edge);
266
267 for(i4_i = 0; i4_i < 4; i4_i++)
268 {
269 UWORD8 u1_curr_nnz, u1_top_nnz;
270
271 u1_curr_nnz = (u2_curr_horz_nnz & i4_bit_mask);
272 u1_top_nnz = (u2_top_horz_nnz & i4_bit_mask);
273 /* update bs horizontal */
274
275 if(!((1 == i4_horz_start) && (0 == i4_edge)))
276 {
277 u1_p_nnz = u1_top_nnz;
278 u1_q_nnz = u1_curr_nnz;
279 u1_cnd = !(u1_p_nnz || u1_q_nnz);
280 u1_bs = u1_cnd ? 0 : 1;
281 pu4_bs_table[i4_edge] = (pu4_bs_table[i4_edge] << 8) + u1_bs;
282 }
283
284 /* update bs vertical */
285 if(!((1 == i4_vertical_start) && (0 == i4_i)))
286 {
287 u1_p_nnz = u1_left_nnz;
288 u1_q_nnz = u1_curr_nnz;
289 u1_cnd = !(u1_p_nnz || u1_q_nnz);
290 u1_bs = u1_cnd ? 0 : 1;
291 pu4_bs_table[i4_i + 4] = (pu4_bs_table[i4_i + 4] << 8) + u1_bs;
292 }
293 /* store the current nnz to left nnz */
294 u1_left_nnz = u1_curr_nnz;
295 i4_bit_mask <<= 1;
296 }
297 /* store the current row nnz to top row nnz */
298 u2_top_horz_nnz = u2_curr_horz_nnz;
299 i4_bit_mask_edge <<= 1;
300 }
301 }
302 return;
303 }
304
305 /*****************************************************************************/
306 /* */
307 /* Function Name : isvcd_compute_bs_non_mbaff_target_lyr_no_inter_layer */
308 /* */
309 /* Description : This function computes the pointers of left,top & current*/
310 /* : Nnz, MvPred & deblk_mb_t and supplies to FillBs function */
311 /* : for Boundary Strength Calculation */
312 /* Inputs : <What inputs does the function take?> */
313 /* Processing : This functions calls deblock MB in the MB increment order*/
314 /* */
315 /* Outputs : Produces the Boundary Strength for Current Mb */
316 /* Returns : None */
317 /* */
318 /* Revision History: */
319 /* */
320 /* DD MM YYYY Author(s) Changes (Describe the changes made) */
321 /* 06 09 2021 Kishore */
322 /*****************************************************************************/
323
isvcd_compute_bs_non_mbaff_target_lyr_no_inter_layer(svc_dec_lyr_struct_t * ps_svc_lyr_dec,dec_mb_info_t * ps_cur_mb_info,const UWORD16 u2_mbxn_mb)324 void isvcd_compute_bs_non_mbaff_target_lyr_no_inter_layer(svc_dec_lyr_struct_t *ps_svc_lyr_dec,
325 dec_mb_info_t *ps_cur_mb_info,
326 const UWORD16 u2_mbxn_mb)
327 {
328 dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
329 /* Mvpred and Nnz for top and Courrent */
330 mv_pred_t *ps_cur_mv_pred, *ps_top_mv_pred = NULL, *ps_left_mv_pred;
331 /* deblk_mb_t Params */
332 deblk_mb_t *ps_cur_mb_params; /*< Parameters of current MacroBlock */
333 deblkmb_neighbour_t *ps_deblk_top_mb;
334
335 /* Reference Index to POC mapping*/
336 void **apv_map_ref_idx_to_poc;
337 UWORD32 u4_leftmbtype;
338
339 UWORD16 u2_left_csbp, u2_top_csbp, u2_cur_csbp;
340
341 /* Set of flags */
342 UWORD32 u4_cur_mb_intra, u1_top_mb_typ, u4_cur_mb_fld;
343 UWORD32 u1_cur_mb_type;
344 UWORD32 *pu4_bs_table;
345
346 /* Neighbour availability */
347 /* Initialization */
348 const UWORD32 u2_mbx = ps_cur_mb_info->u2_mbx;
349 const UWORD32 u2_mby = ps_cur_mb_info->u2_mby;
350 const UWORD32 u1_pingpong = u2_mbx & 0x01;
351
352 PROFILE_DISABLE_BOUNDARY_STRENGTH()
353
354 ps_deblk_top_mb = ps_dec->ps_deblk_top_mb + u2_mbx;
355
356 /* Pointer assignment for Current DeblkMB, Current Mv Pred */
357 ps_cur_mb_params = ps_dec->ps_deblk_mbn + u2_mbxn_mb;
358 ps_cur_mv_pred = ps_dec->ps_mv_cur + (u2_mbxn_mb << 4);
359
360 apv_map_ref_idx_to_poc = ps_dec->ppv_map_ref_idx_to_poc + 1;
361 u1_cur_mb_type = ps_cur_mb_params->u1_mb_type;
362 u1_top_mb_typ = ps_deblk_top_mb->u1_mb_type;
363 ps_deblk_top_mb->u1_mb_type = u1_cur_mb_type;
364
365 ps_cur_mb_params->u1_topmb_qp = ps_deblk_top_mb->u1_mb_qp;
366 ps_deblk_top_mb->u1_mb_qp = ps_cur_mb_params->u1_mb_qp;
367 ps_cur_mb_params->u1_left_mb_qp = ps_dec->deblk_left_mb[1].u1_mb_qp;
368 ps_dec->deblk_left_mb[1].u1_mb_qp = ps_cur_mb_params->u1_mb_qp;
369
370 /* if no deblocking required for current Mb then continue */
371 /* Check next Mbs in Mb group */
372 if(ps_cur_mb_params->u1_deblocking_mode & MB_DISABLE_FILTERING)
373 {
374 void **pu4_map_ref_idx_to_poc_l1 = apv_map_ref_idx_to_poc + POC_LIST_L0_TO_L1_DIFF;
375 {
376 /* Store Parameter for Top MvPred refernce frame Address */
377
378 void **ppv_top_mv_pred_addr = ps_cur_mb_info->ps_curmb->u4_pic_addrress;
379 WORD8 *p1_refTop0 = (ps_cur_mv_pred + 12)->i1_ref_frame;
380 WORD8 *p1_refTop1 = (ps_cur_mv_pred + 14)->i1_ref_frame;
381
382 /* Store Left addresses for Next Mb */
383 void **ppv_left_mv_pred_addr = ps_dec->ps_left_mvpred_addr[!u1_pingpong][1].u4_add;
384 WORD8 *p1_refleft0 = (ps_cur_mv_pred + 3)->i1_ref_frame;
385
386 ppv_top_mv_pred_addr[0] = apv_map_ref_idx_to_poc[p1_refTop0[0]];
387 ppv_top_mv_pred_addr[1] = pu4_map_ref_idx_to_poc_l1[p1_refTop0[1]];
388
389 ppv_left_mv_pred_addr[2] = apv_map_ref_idx_to_poc[p1_refTop1[0]];
390 ppv_top_mv_pred_addr[2] = apv_map_ref_idx_to_poc[p1_refTop1[0]];
391 ppv_left_mv_pred_addr[3] = pu4_map_ref_idx_to_poc_l1[p1_refTop1[1]];
392 ppv_top_mv_pred_addr[3] = pu4_map_ref_idx_to_poc_l1[p1_refTop1[1]];
393
394 ppv_left_mv_pred_addr[0] = apv_map_ref_idx_to_poc[p1_refleft0[0]];
395 ppv_left_mv_pred_addr[1] = pu4_map_ref_idx_to_poc_l1[p1_refleft0[1]];
396 /* Storing the leftMbtype for next Mb */
397 ps_dec->deblk_left_mb[1].u1_mb_type = ps_cur_mb_params->u1_mb_type;
398 }
399
400 return;
401 }
402
403 /* Flag for extra left Edge */
404 ps_cur_mb_params->u1_single_call = 1;
405
406 /* Update the Left deblk_mb_t and Left MvPred Parameters */
407 if(!u2_mbx)
408 {
409 u4_leftmbtype = 0;
410
411 /* Initialize the ps_left_mv_pred with Junk but Valid Location */
412 /* to avoid invalid memory access */
413 /* this is read only pointer */
414 ps_left_mv_pred = ps_dec->ps_mv_cur + 3;
415 }
416 else
417 {
418 u4_leftmbtype = ps_dec->deblk_left_mb[1].u1_mb_type;
419
420 /* Come to Left Most Edge of the MB */
421 ps_left_mv_pred =
422 (u2_mbxn_mb) ? ps_dec->ps_mv_cur + ((u2_mbxn_mb - 1) << 4) + 3 : ps_dec->ps_mv_left + 3;
423 }
424
425 if(!u2_mby) u1_top_mb_typ = 0;
426
427 /* MvPred Pointer Calculation */
428 ps_top_mv_pred = ps_cur_mv_pred - (ps_dec->u2_frm_wd_in_mbs << 4) + 12;
429
430 u4_cur_mb_intra = u1_cur_mb_type & D_INTRA_MB;
431 u4_cur_mb_fld = !!(u1_cur_mb_type & D_FLD_MB);
432 /* Compute BS function */
433 pu4_bs_table = ps_cur_mb_params->u4_bs_table;
434
435 u2_cur_csbp = ps_cur_mb_info->ps_curmb->u2_luma_csbp;
436 u2_left_csbp = ps_cur_mb_info->ps_left_mb->u2_luma_csbp;
437 u2_top_csbp = ps_cur_mb_info->ps_top_mb->u2_luma_csbp;
438 /* Compute BS function */
439 if((ps_dec->ps_cur_sps->u1_profile_idc == HIGH_PROFILE_IDC) ||
440 (ps_dec->ps_cur_sps->u1_profile_idc == SCALABLE_HIGH_PROFILE_IDC) ||
441 (ps_dec->ps_cur_sps->u1_profile_idc == SCALABLE_BASELINE_PROFILE_IDC))
442 {
443 if(ps_cur_mb_info->u1_tran_form8x8 == 1)
444 {
445 u2_cur_csbp = ih264d_update_csbp_8x8(ps_cur_mb_info->ps_curmb->u2_luma_csbp);
446 }
447
448 if(ps_cur_mb_info->ps_left_mb->u1_tran_form8x8 == 1)
449 {
450 u2_left_csbp = ih264d_update_csbp_8x8(ps_cur_mb_info->ps_left_mb->u2_luma_csbp);
451 }
452
453 if(ps_cur_mb_info->ps_top_mb->u1_tran_form8x8 == 1)
454 {
455 u2_top_csbp = ih264d_update_csbp_8x8(ps_cur_mb_info->ps_top_mb->u2_luma_csbp);
456 }
457 }
458 if(u4_cur_mb_intra)
459 {
460 pu4_bs_table[4] = 0x04040404;
461 pu4_bs_table[0] = u4_cur_mb_fld ? 0x03030303 : 0x04040404;
462 pu4_bs_table[1] = 0x03030303;
463 pu4_bs_table[2] = 0x03030303;
464 pu4_bs_table[3] = 0x03030303;
465 pu4_bs_table[5] = 0x03030303;
466 pu4_bs_table[6] = 0x03030303;
467 pu4_bs_table[7] = 0x03030303;
468 }
469 else
470 {
471 UWORD32 u4_is_non16x16 = !!(u1_cur_mb_type & D_PRED_NON_16x16);
472 UWORD32 u4_is_b = ps_dec->u1_B;
473
474 ih264d_fill_bs2_horz_vert(pu4_bs_table, u2_left_csbp, u2_top_csbp, u2_cur_csbp,
475 (const UWORD32 *) (gau4_ih264d_packed_bs2),
476 (const UWORD16 *) (gau2_ih264d_4x4_v2h_reorder));
477
478 if(u4_leftmbtype & D_INTRA_MB) pu4_bs_table[4] = 0x04040404;
479
480 if(u1_top_mb_typ & D_INTRA_MB) pu4_bs_table[0] = u4_cur_mb_fld ? 0x03030303 : 0x04040404;
481
482 ps_dec->pf_fill_bs1[u4_is_b][u4_is_non16x16](
483 ps_cur_mv_pred, ps_top_mv_pred, apv_map_ref_idx_to_poc, pu4_bs_table, ps_left_mv_pred,
484 &(ps_dec->ps_left_mvpred_addr[u1_pingpong][1]),
485 ps_cur_mb_info->ps_top_mb->u4_pic_addrress, (4 >> u4_cur_mb_fld));
486 }
487
488 {
489 void **pu4_map_ref_idx_to_poc_l1 = apv_map_ref_idx_to_poc + POC_LIST_L0_TO_L1_DIFF;
490 {
491 /* Store Parameter for Top MvPred refernce frame Address */
492
493 void **ppv_top_mv_pred_addr = ps_cur_mb_info->ps_curmb->u4_pic_addrress;
494 WORD8 *p1_refTop0 = (ps_cur_mv_pred + 12)->i1_ref_frame;
495 WORD8 *p1_refTop1 = (ps_cur_mv_pred + 14)->i1_ref_frame;
496
497 /* Store Left addresses for Next Mb */
498 void **ppv_left_mv_pred_addr = ps_dec->ps_left_mvpred_addr[!u1_pingpong][1].u4_add;
499 WORD8 *p1_refleft0 = (ps_cur_mv_pred + 3)->i1_ref_frame;
500
501 ppv_top_mv_pred_addr[0] = apv_map_ref_idx_to_poc[p1_refTop0[0]];
502 ppv_top_mv_pred_addr[1] = pu4_map_ref_idx_to_poc_l1[p1_refTop0[1]];
503
504 ppv_left_mv_pred_addr[2] = apv_map_ref_idx_to_poc[p1_refTop1[0]];
505 ppv_top_mv_pred_addr[2] = apv_map_ref_idx_to_poc[p1_refTop1[0]];
506 ppv_left_mv_pred_addr[3] = pu4_map_ref_idx_to_poc_l1[p1_refTop1[1]];
507 ppv_top_mv_pred_addr[3] = pu4_map_ref_idx_to_poc_l1[p1_refTop1[1]];
508
509 ppv_left_mv_pred_addr[0] = apv_map_ref_idx_to_poc[p1_refleft0[0]];
510 ppv_left_mv_pred_addr[1] = pu4_map_ref_idx_to_poc_l1[p1_refleft0[1]];
511
512 /* Storing the leftMbtype for next Mb */
513 ps_dec->deblk_left_mb[1].u1_mb_type = ps_cur_mb_params->u1_mb_type;
514 }
515 }
516
517 /* For transform 8x8 disable deblocking of the intrernal edges of a 8x8 block */
518 if(ps_cur_mb_info->u1_tran_form8x8)
519 {
520 pu4_bs_table[1] = 0;
521 pu4_bs_table[3] = 0;
522 pu4_bs_table[5] = 0;
523 pu4_bs_table[7] = 0;
524 }
525 }
526 /*****************************************************************************/
527 /* */
528 /* Function Name : isvcd_compute_bs_non_mbaff */
529 /* */
530 /* Description : This function computes the pointers of left,top & current*/
531 /* : Nnz, MvPred & deblk_mb_t and supplies to FillBs function */
532 /* : for Boundary Strength Calculation */
533 /* Inputs : <What inputs does the function take?> */
534 /* Processing : This functions calls deblock MB in the MB increment order*/
535 /* */
536 /* Outputs : Produces the Boundary Strength for Current Mb */
537 /* Returns : None */
538 /* */
539 /* Revision History: */
540 /* */
541 /* DD MM YYYY Author(s) Changes (Describe the changes made) */
542 /* 06 09 2021 Kishore */
543 /*****************************************************************************/
544
isvcd_compute_bs_non_mbaff(svc_dec_lyr_struct_t * ps_svc_lyr_dec,dec_mb_info_t * ps_cur_mb_info,const UWORD16 u2_mbxn_mb)545 void isvcd_compute_bs_non_mbaff(svc_dec_lyr_struct_t *ps_svc_lyr_dec, dec_mb_info_t *ps_cur_mb_info,
546 const UWORD16 u2_mbxn_mb)
547 {
548 dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
549 ps_dec->pf_compute_bs(ps_dec, ps_cur_mb_info, u2_mbxn_mb);
550 }
551 /*****************************************************************************/
552 /* */
553 /* Function Name : isvcd_compute_bs_non_mbaff_target_lyr */
554 /* */
555 /* Description : This function computes the pointers of left,top & current*/
556 /* : Nnz, MvPred & deblk_mb_t and supplies to FillBs function */
557 /* : for Boundary Strength Calculation */
558 /* Inputs : <What inputs does the function take?> */
559 /* Processing : This functions calls deblock MB in the MB increment order*/
560 /* */
561 /* Outputs : Produces the Boundary Strength for Current Mb */
562 /* Returns : None */
563 /* */
564 /* Revision History: */
565 /* */
566 /* DD MM YYYY Author(s) Changes (Describe the changes made) */
567 /* 06 09 2021 Kishore */
568 /*****************************************************************************/
569
isvcd_compute_bs_non_mbaff_target_lyr(svc_dec_lyr_struct_t * ps_svc_lyr_dec,dec_mb_info_t * ps_cur_mb_info,const UWORD16 u2_mbxn_mb)570 void isvcd_compute_bs_non_mbaff_target_lyr(svc_dec_lyr_struct_t *ps_svc_lyr_dec,
571 dec_mb_info_t *ps_cur_mb_info, const UWORD16 u2_mbxn_mb)
572 {
573 dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
574 /* Mvpred and Nnz for top and Courrent */
575 mv_pred_t *ps_cur_mv_pred, *ps_top_mv_pred = NULL, *ps_left_mv_pred;
576 /* deblk_mb_t Params */
577 deblk_mb_t *ps_cur_mb_params; /*< Parameters of current MacroBlock */
578 deblkmb_neighbour_t *ps_deblk_top_mb;
579
580 /* Reference Index to POC mapping*/
581 void **apv_map_ref_idx_to_poc;
582 UWORD32 u4_leftmbtype;
583 UWORD16 u2_left_csbp, u2_top_csbp, u2_cur_csbp;
584
585 /* Set of flags */
586 UWORD32 u4_cur_mb_intra, u1_top_mb_typ, u4_cur_mb_fld;
587 UWORD32 u4_cur_mb_ibl;
588 UWORD32 u1_cur_mb_type;
589 UWORD32 *pu4_bs_table;
590
591 UWORD16 *pu2_curr_res_luma_csbp;
592 UWORD16 *pu2_left_res_luma_csbp;
593 UWORD16 *pu2_top_res_luma_csbp;
594
595 /* Neighbour availability */
596 /* Initialization */
597 const UWORD32 u2_mbx = ps_cur_mb_info->u2_mbx;
598 const UWORD32 u2_mby = ps_cur_mb_info->u2_mby;
599 const UWORD32 u1_pingpong = u2_mbx & 0x01;
600
601 PROFILE_DISABLE_BOUNDARY_STRENGTH()
602
603 ps_deblk_top_mb = ps_dec->ps_deblk_top_mb + u2_mbx;
604
605 /* Pointer assignment for Current DeblkMB, Current Mv Pred */
606 ps_cur_mb_params = ps_dec->ps_deblk_mbn + u2_mbxn_mb;
607 ps_cur_mv_pred = ps_dec->ps_mv_cur + (u2_mbxn_mb << 4);
608
609 /*Pointer assignment for Residual NNZ */
610 pu2_curr_res_luma_csbp = ps_svc_lyr_dec->pu2_frm_res_luma_csbp + ps_cur_mb_info->u2_mbx;
611 pu2_curr_res_luma_csbp += ps_cur_mb_info->u2_mby * ps_svc_lyr_dec->i4_frm_res_luma_csbp_stride;
612
613 pu2_left_res_luma_csbp = pu2_curr_res_luma_csbp - (ps_cur_mb_info->u2_mbx != 0);
614 pu2_top_res_luma_csbp = pu2_curr_res_luma_csbp - ((ps_cur_mb_info->u2_mby != 0) *
615 ps_svc_lyr_dec->i4_frm_res_luma_csbp_stride);
616
617 apv_map_ref_idx_to_poc = ps_dec->ppv_map_ref_idx_to_poc + 1;
618 u1_cur_mb_type = ps_cur_mb_params->u1_mb_type;
619 u1_top_mb_typ = ps_deblk_top_mb->u1_mb_type;
620 ps_deblk_top_mb->u1_mb_type = u1_cur_mb_type;
621
622 ps_cur_mb_params->u1_topmb_qp = ps_deblk_top_mb->u1_mb_qp;
623 ps_deblk_top_mb->u1_mb_qp = ps_cur_mb_params->u1_mb_qp;
624 ps_cur_mb_params->u1_left_mb_qp = ps_dec->deblk_left_mb[1].u1_mb_qp;
625 ps_dec->deblk_left_mb[1].u1_mb_qp = ps_cur_mb_params->u1_mb_qp;
626
627 /* if no deblocking required for current Mb then continue */
628 /* Check next Mbs in Mb group */
629 if(ps_cur_mb_params->u1_deblocking_mode & MB_DISABLE_FILTERING)
630 {
631 void **pu4_map_ref_idx_to_poc_l1 = apv_map_ref_idx_to_poc + POC_LIST_L0_TO_L1_DIFF;
632
633 /* Store Parameter for Top MvPred refernce frame Address */
634 void **ppv_top_mv_pred_addr = ps_cur_mb_info->ps_curmb->u4_pic_addrress;
635 WORD8 *p1_refTop0 = (ps_cur_mv_pred + 12)->i1_ref_frame;
636 WORD8 *p1_refTop1 = (ps_cur_mv_pred + 14)->i1_ref_frame;
637
638 /* Store Left addresses for Next Mb */
639 void **ppv_left_mv_pred_addr = ps_dec->ps_left_mvpred_addr[!u1_pingpong][1].u4_add;
640 WORD8 *p1_refleft0 = (ps_cur_mv_pred + 3)->i1_ref_frame;
641
642 ppv_top_mv_pred_addr[0] = apv_map_ref_idx_to_poc[p1_refTop0[0]];
643 ppv_top_mv_pred_addr[1] = pu4_map_ref_idx_to_poc_l1[p1_refTop0[1]];
644
645 ppv_left_mv_pred_addr[2] = apv_map_ref_idx_to_poc[p1_refTop1[0]];
646 ppv_top_mv_pred_addr[2] = apv_map_ref_idx_to_poc[p1_refTop1[0]];
647 ppv_left_mv_pred_addr[3] = pu4_map_ref_idx_to_poc_l1[p1_refTop1[1]];
648 ppv_top_mv_pred_addr[3] = pu4_map_ref_idx_to_poc_l1[p1_refTop1[1]];
649
650 ppv_left_mv_pred_addr[0] = apv_map_ref_idx_to_poc[p1_refleft0[0]];
651 ppv_left_mv_pred_addr[1] = pu4_map_ref_idx_to_poc_l1[p1_refleft0[1]];
652 /* Storing the leftMbtype for next Mb */
653 ps_dec->deblk_left_mb[1].u1_mb_type = ps_cur_mb_params->u1_mb_type;
654
655 return;
656 }
657
658 /* Flag for extra left Edge */
659 ps_cur_mb_params->u1_single_call = 1;
660
661 /* Update the Left deblk_mb_t and Left MvPred Parameters */
662 if(!u2_mbx)
663 {
664 u4_leftmbtype = 0;
665
666 /* Initialize the ps_left_mv_pred with Junk but Valid Location */
667 /* to avoid invalid memory access */
668 /* this is read only pointer */
669 ps_left_mv_pred = ps_dec->ps_mv_cur + 3;
670 }
671 else
672 {
673 u4_leftmbtype = ps_dec->deblk_left_mb[1].u1_mb_type;
674
675 /* Come to Left Most Edge of the MB */
676 ps_left_mv_pred =
677 (u2_mbxn_mb) ? ps_dec->ps_mv_cur + ((u2_mbxn_mb - 1) << 4) + 3 : ps_dec->ps_mv_left + 3;
678 }
679
680 if(!u2_mby) u1_top_mb_typ = 0;
681
682 /* MvPred Pointer Calculation */
683 ps_top_mv_pred = ps_cur_mv_pred - (ps_dec->u2_frm_wd_in_mbs << 4) + 12;
684 u4_cur_mb_intra = u1_cur_mb_type & D_INTRA_MB;
685 u4_cur_mb_ibl = u1_cur_mb_type & D_INTRA_IBL;
686 u4_cur_mb_fld = !!(u1_cur_mb_type & D_FLD_MB);
687 /* Compute BS function */
688 pu4_bs_table = ps_cur_mb_params->u4_bs_table;
689
690 u2_cur_csbp = ps_cur_mb_info->ps_curmb->u2_luma_csbp;
691 u2_left_csbp = ps_cur_mb_info->ps_left_mb->u2_luma_csbp;
692 u2_top_csbp = ps_cur_mb_info->ps_top_mb->u2_luma_csbp;
693 /* Compute BS function */
694 if((ps_dec->ps_cur_sps->u1_profile_idc == HIGH_PROFILE_IDC) ||
695 (ps_dec->ps_cur_sps->u1_profile_idc == SCALABLE_HIGH_PROFILE_IDC) ||
696 (ps_dec->ps_cur_sps->u1_profile_idc == SCALABLE_BASELINE_PROFILE_IDC))
697 {
698 if(ps_cur_mb_info->u1_tran_form8x8 == 1)
699 {
700 u2_cur_csbp = ih264d_update_csbp_8x8(ps_cur_mb_info->ps_curmb->u2_luma_csbp);
701 ps_cur_mb_info->ps_curmb->u2_luma_csbp = u2_cur_csbp;
702 }
703 }
704 u2_cur_csbp |= *pu2_curr_res_luma_csbp;
705 u2_left_csbp |= *pu2_left_res_luma_csbp;
706 u2_top_csbp |= *pu2_top_res_luma_csbp;
707
708 if(u4_cur_mb_intra)
709 {
710 pu4_bs_table[4] = 0x04040404;
711 pu4_bs_table[0] = u4_cur_mb_fld ? 0x03030303 : 0x04040404;
712 pu4_bs_table[1] = 0x03030303;
713 pu4_bs_table[2] = 0x03030303;
714 pu4_bs_table[3] = 0x03030303;
715 pu4_bs_table[5] = 0x03030303;
716 pu4_bs_table[6] = 0x03030303;
717 pu4_bs_table[7] = 0x03030303;
718 }
719 else
720 {
721 isvcd_fill_bs_ibl(ps_cur_mb_params, u1_top_mb_typ, u4_leftmbtype, ps_cur_mb_info,
722 pu2_curr_res_luma_csbp, pu2_left_res_luma_csbp, pu2_top_res_luma_csbp);
723
724 if(!u4_cur_mb_ibl)
725 {
726 UWORD32 u4_is_non16x16 = !!(u1_cur_mb_type & D_PRED_NON_16x16);
727 UWORD32 u4_is_b = ps_dec->u1_B;
728 UWORD32 u4_bs_0, u4_bs_4;
729
730 u4_bs_0 = pu4_bs_table[0];
731 u4_bs_4 = pu4_bs_table[4];
732
733 ih264d_fill_bs2_horz_vert(pu4_bs_table, u2_left_csbp, u2_top_csbp, u2_cur_csbp,
734 (const UWORD32 *) (gau4_ih264d_packed_bs2),
735 (const UWORD16 *) (gau2_ih264d_4x4_v2h_reorder));
736
737 if(u4_leftmbtype & D_INTRA_MB)
738 {
739 pu4_bs_table[4] = 0x04040404;
740 }
741 else if(u4_leftmbtype & D_INTRA_IBL)
742 {
743 pu4_bs_table[4] = u4_bs_4;
744 }
745
746 if(u1_top_mb_typ & D_INTRA_MB)
747 {
748 pu4_bs_table[0] = u4_cur_mb_fld ? 0x03030303 : 0x04040404;
749 }
750 else if(u1_top_mb_typ & D_INTRA_IBL)
751 {
752 pu4_bs_table[0] = u4_bs_0;
753 }
754
755 ps_dec->pf_fill_bs1[u4_is_b][u4_is_non16x16](
756 ps_cur_mv_pred, ps_top_mv_pred, apv_map_ref_idx_to_poc, pu4_bs_table,
757 ps_left_mv_pred, &(ps_dec->ps_left_mvpred_addr[u1_pingpong][1]),
758 ps_cur_mb_info->ps_top_mb->u4_pic_addrress, (4 >> u4_cur_mb_fld));
759 }
760 }
761
762 {
763 void **pu4_map_ref_idx_to_poc_l1 = apv_map_ref_idx_to_poc + POC_LIST_L0_TO_L1_DIFF;
764 /* Store Parameter for Top MvPred refernce frame Address */
765 void **ppv_top_mv_pred_addr = ps_cur_mb_info->ps_curmb->u4_pic_addrress;
766 WORD8 *p1_refTop0 = (ps_cur_mv_pred + 12)->i1_ref_frame;
767 WORD8 *p1_refTop1 = (ps_cur_mv_pred + 14)->i1_ref_frame;
768
769 /* Store Left addresses for Next Mb */
770 void **ppv_left_mv_pred_addr = ps_dec->ps_left_mvpred_addr[!u1_pingpong][1].u4_add;
771 WORD8 *p1_refleft0 = (ps_cur_mv_pred + 3)->i1_ref_frame;
772
773 ppv_top_mv_pred_addr[0] = apv_map_ref_idx_to_poc[p1_refTop0[0]];
774 ppv_top_mv_pred_addr[1] = pu4_map_ref_idx_to_poc_l1[p1_refTop0[1]];
775
776 ppv_left_mv_pred_addr[2] = apv_map_ref_idx_to_poc[p1_refTop1[0]];
777 ppv_top_mv_pred_addr[2] = apv_map_ref_idx_to_poc[p1_refTop1[0]];
778 ppv_left_mv_pred_addr[3] = pu4_map_ref_idx_to_poc_l1[p1_refTop1[1]];
779 ppv_top_mv_pred_addr[3] = pu4_map_ref_idx_to_poc_l1[p1_refTop1[1]];
780
781 ppv_left_mv_pred_addr[0] = apv_map_ref_idx_to_poc[p1_refleft0[0]];
782 ppv_left_mv_pred_addr[1] = pu4_map_ref_idx_to_poc_l1[p1_refleft0[1]];
783
784 /* Storing the leftMbtype for next Mb */
785 ps_dec->deblk_left_mb[1].u1_mb_type = ps_cur_mb_params->u1_mb_type;
786 }
787
788 /* For transform 8x8 disable deblocking of the intrernal edges of a 8x8 block */
789 if(ps_cur_mb_info->u1_tran_form8x8)
790 {
791 pu4_bs_table[1] = 0;
792 pu4_bs_table[3] = 0;
793 pu4_bs_table[5] = 0;
794 pu4_bs_table[7] = 0;
795 }
796 }
797
798 /*****************************************************************************/
799 /* */
800 /* Function Name : isvcd_compute_bs_non_mbaff_medial_lyr */
801 /* */
802 /* Description : This function computes the pointers of left,top & current*/
803 /* : Nnz, MvPred & deblk_mb_t and supplies to FillBs function */
804 /* : for Boundary Strength Calculation */
805 /* Inputs : <What inputs does the function take?> */
806 /* Processing : This functions calls deblock MB in the MB increment order*/
807 /* */
808 /* Outputs : Produces the Boundary Strength for Current Mb */
809 /* Returns : None */
810 /* */
811 /* Revision History: */
812 /* */
813 /* DD MM YYYY Author(s) Changes (Describe the changes made) */
814 /* 06 09 2021 Kishore */
815 /*****************************************************************************/
816
isvcd_compute_bs_non_mbaff_medial_lyr(svc_dec_lyr_struct_t * ps_svc_lyr_dec,dec_mb_info_t * ps_cur_mb_info,const UWORD16 u2_mbxn_mb)817 void isvcd_compute_bs_non_mbaff_medial_lyr(svc_dec_lyr_struct_t *ps_svc_lyr_dec,
818 dec_mb_info_t *ps_cur_mb_info, const UWORD16 u2_mbxn_mb)
819 {
820 dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
821 /* deblk_mb_t Params */
822 deblk_mb_t *ps_cur_mb_params; /*< Parameters of current MacroBlock */
823 deblkmb_neighbour_t *ps_deblk_top_mb;
824 UWORD32 u4_leftmbtype;
825 UWORD16 u2_cur_csbp;
826
827 /* Set of flags */
828 UWORD32 u4_cur_mb_intra, u1_top_mb_typ, u4_cur_mb_fld;
829 UWORD32 u1_cur_mb_type;
830 UWORD32 *pu4_bs_table;
831 UWORD32 mb_type_intra = 0;
832
833 UWORD16 *pu2_curr_res_luma_csbp;
834 UWORD16 *pu2_left_res_luma_csbp;
835 UWORD16 *pu2_top_res_luma_csbp;
836
837 /* Neighbour availability */
838 const UWORD32 u2_mbx = ps_cur_mb_info->u2_mbx;
839 const UWORD32 u2_mby = ps_cur_mb_info->u2_mby;
840
841 PROFILE_DISABLE_BOUNDARY_STRENGTH()
842
843 ps_deblk_top_mb = ps_dec->ps_deblk_top_mb + u2_mbx;
844
845 /* Pointer assignment for Current DeblkMB, Current Mv Pred */
846 ps_cur_mb_params = ps_dec->ps_deblk_mbn + u2_mbxn_mb;
847
848 /*Pointer assignment for Residual NNZ */
849 pu2_curr_res_luma_csbp = ps_svc_lyr_dec->pu2_frm_res_luma_csbp + ps_cur_mb_info->u2_mbx;
850 pu2_curr_res_luma_csbp += ps_cur_mb_info->u2_mby * ps_svc_lyr_dec->i4_frm_res_luma_csbp_stride;
851
852 pu2_left_res_luma_csbp = pu2_curr_res_luma_csbp - (ps_cur_mb_info->u2_mbx != 0);
853 pu2_top_res_luma_csbp = pu2_curr_res_luma_csbp - ((ps_cur_mb_info->u2_mby != 0) *
854 ps_svc_lyr_dec->i4_frm_res_luma_csbp_stride);
855
856 u1_cur_mb_type = ps_cur_mb_params->u1_mb_type;
857 u1_top_mb_typ = ps_deblk_top_mb->u1_mb_type;
858 ps_deblk_top_mb->u1_mb_type = u1_cur_mb_type;
859
860 ps_cur_mb_params->u1_topmb_qp = ps_deblk_top_mb->u1_mb_qp;
861 ps_deblk_top_mb->u1_mb_qp = ps_cur_mb_params->u1_mb_qp;
862 ps_cur_mb_params->u1_left_mb_qp = ps_dec->deblk_left_mb[1].u1_mb_qp;
863 ps_dec->deblk_left_mb[1].u1_mb_qp = ps_cur_mb_params->u1_mb_qp;
864
865 /* if no deblocking required for current Mb then continue */
866 /* Check next Mbs in Mb group */
867 if(ps_cur_mb_params->u1_deblocking_mode & MB_DISABLE_FILTERING)
868 {
869 /* Storing the leftMbtype for next Mb */
870 ps_dec->deblk_left_mb[1].u1_mb_type = ps_cur_mb_params->u1_mb_type;
871 return;
872 }
873
874 /* Flag for extra left Edge */
875 ps_cur_mb_params->u1_single_call = 1;
876
877 /* Update the Left deblk_mb_t */
878 if(!u2_mbx)
879 {
880 u4_leftmbtype = 0;
881 }
882 else
883 {
884 u4_leftmbtype = ps_dec->deblk_left_mb[1].u1_mb_type;
885 }
886
887 if(!u2_mby) u1_top_mb_typ = 0;
888
889 u4_cur_mb_intra = u1_cur_mb_type & D_INTRA_MB;
890 u4_cur_mb_fld = !!(u1_cur_mb_type & D_FLD_MB);
891 /* Compute BS function */
892 pu4_bs_table = ps_cur_mb_params->u4_bs_table;
893
894 u2_cur_csbp = ps_cur_mb_info->ps_curmb->u2_luma_csbp;
895 /* Compute BS function */
896 if((ps_dec->ps_cur_sps->u1_profile_idc == HIGH_PROFILE_IDC) ||
897 (ps_dec->ps_cur_sps->u1_profile_idc == SCALABLE_HIGH_PROFILE_IDC) ||
898 (ps_dec->ps_cur_sps->u1_profile_idc == SCALABLE_BASELINE_PROFILE_IDC))
899 {
900 if(ps_cur_mb_info->u1_tran_form8x8 == 1)
901 {
902 u2_cur_csbp = ih264d_update_csbp_8x8(ps_cur_mb_info->ps_curmb->u2_luma_csbp);
903 ps_cur_mb_info->ps_curmb->u2_luma_csbp = u2_cur_csbp;
904 }
905 }
906 u2_cur_csbp |= *pu2_curr_res_luma_csbp;
907
908 if(u4_cur_mb_intra)
909 {
910 pu4_bs_table[4] = 0x04040404;
911 pu4_bs_table[0] = u4_cur_mb_fld ? 0x03030303 : 0x04040404;
912 pu4_bs_table[1] = 0x03030303;
913 pu4_bs_table[2] = 0x03030303;
914 pu4_bs_table[3] = 0x03030303;
915 pu4_bs_table[5] = 0x03030303;
916 pu4_bs_table[6] = 0x03030303;
917 pu4_bs_table[7] = 0x03030303;
918 }
919 else
920 {
921 isvcd_fill_bs_ibl(ps_cur_mb_params, u1_top_mb_typ, u4_leftmbtype, ps_cur_mb_info,
922 pu2_curr_res_luma_csbp, pu2_left_res_luma_csbp, pu2_top_res_luma_csbp);
923 }
924
925 mb_type_intra = (u1_top_mb_typ & D_INTRA_MB) || (u1_top_mb_typ & D_INTRA_IBL);
926
927 /* if Top MB or current MB is INTER */
928 if(!mb_type_intra)
929 {
930 pu4_bs_table[0] = 0;
931 /* disable the processing of top edge */
932 ps_cur_mb_params->u1_deblocking_mode |= MB_DISABLE_TOP_EDGE;
933 }
934
935 mb_type_intra = (u4_leftmbtype & D_INTRA_MB) || (u4_leftmbtype & D_INTRA_IBL);
936 /* if Left MB current MB is INTER */
937 if(!mb_type_intra)
938 {
939 pu4_bs_table[4] = 0;
940 /* disable the processing of left edge */
941 ps_cur_mb_params->u1_deblocking_mode |= MB_DISABLE_LEFT_EDGE;
942 }
943
944 /* overwrite the BS 0 values for corner cases */
945 if(0 == u2_mbx)
946 {
947 pu4_bs_table[4] = 0;
948 }
949 if(0 == u2_mby)
950 {
951 pu4_bs_table[0] = 0;
952 }
953
954 /* Storing the leftMbtype for next Mb */
955 ps_dec->deblk_left_mb[1].u1_mb_type = ps_cur_mb_params->u1_mb_type;
956
957 /* For transform 8x8 disable deblocking of the intrernal edges of a 8x8 block */
958 if(ps_cur_mb_info->u1_tran_form8x8)
959 {
960 pu4_bs_table[1] = 0;
961 pu4_bs_table[3] = 0;
962 pu4_bs_table[5] = 0;
963 pu4_bs_table[7] = 0;
964 }
965 }
966