1 /******************************************************************************
2 *
3 * Copyright (C) 2018 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 ihevce_entropy_interface.c
23 *
24 * @brief
25 * This file contains function definitions for entropy interface related to
26 * memory init and process apis
27 *
28 * @author
29 * Ittiam
30 *
31 * List of Functions
32 * ihevce_entropy_get_num_mem_recs()
33 * ihevce_entropy_size_of_out_buffer()
34 * ihevce_entropy_get_mem_recs()
35 * ihevce_entropy_init()
36 * ihevce_entropy_encode_frame()
37 *
38 ******************************************************************************
39 */
40
41 /*****************************************************************************/
42 /* File Includes */
43 /*****************************************************************************/
44 /* System include files */
45 #include <stdio.h>
46 #include <string.h>
47 #include <stdlib.h>
48 #include <assert.h>
49 #include <stdarg.h>
50 #include <math.h>
51
52 /* User include files */
53 #include "ihevc_typedefs.h"
54 #include "itt_video_api.h"
55 #include "ihevce_api.h"
56
57 #include "rc_cntrl_param.h"
58 #include "rc_frame_info_collector.h"
59 #include "rc_look_ahead_params.h"
60
61 #include "ihevc_defs.h"
62 #include "ihevc_macros.h"
63 #include "ihevc_debug.h"
64 #include "ihevc_structs.h"
65 #include "ihevc_platform_macros.h"
66 #include "ihevc_deblk.h"
67 #include "ihevc_itrans_recon.h"
68 #include "ihevc_chroma_itrans_recon.h"
69 #include "ihevc_chroma_intra_pred.h"
70 #include "ihevc_intra_pred.h"
71 #include "ihevc_inter_pred.h"
72 #include "ihevc_mem_fns.h"
73 #include "ihevc_padding.h"
74 #include "ihevc_weighted_pred.h"
75 #include "ihevc_sao.h"
76 #include "ihevc_resi_trans.h"
77 #include "ihevc_quant_iquant_ssd.h"
78 #include "ihevc_cabac_tables.h"
79 #include "ihevc_trans_tables.h"
80 #include "ihevc_trans_macros.h"
81
82 #include "ihevce_defs.h"
83 #include "ihevce_lap_enc_structs.h"
84 #include "ihevce_multi_thrd_structs.h"
85 #include "ihevce_multi_thrd_funcs.h"
86 #include "ihevce_me_common_defs.h"
87 #include "ihevce_had_satd.h"
88 #include "ihevce_error_codes.h"
89 #include "ihevce_error_checks.h"
90 #include "ihevce_bitstream.h"
91 #include "ihevce_cabac.h"
92 #include "ihevce_rdoq_macros.h"
93 #include "ihevce_function_selector.h"
94 #include "ihevce_enc_structs.h"
95 #include "ihevce_global_tables.h"
96 #include "ihevce_entropy_structs.h"
97 #include "ihevce_entropy_interface.h"
98 #include "ihevce_encode_header.h"
99 #include "ihevce_encode_header_sei_vui.h"
100 #include "ihevce_trace.h"
101
102 #include "cast_types.h"
103 #include "osal.h"
104 #include "osal_defaults.h"
105
106 /*****************************************************************************/
107 /* Function Definitions */
108 /*****************************************************************************/
109
110 /**
111 ******************************************************************************
112 *
113 * @brief Number of memory records are returned for entropy module
114 *
115 * @par Description
116 *
117 * @return number of memory records
118 *
119 ******************************************************************************
120 */
ihevce_entropy_get_num_mem_recs(void)121 WORD32 ihevce_entropy_get_num_mem_recs(void)
122 {
123 return (NUM_ENTROPY_MEM_RECS);
124 }
125
126 /**
127 ******************************************************************************
128 *
129 * @brief Estimated bitstream buffer size basing on input dimensions
130 *
131 * @par Description
132 *
133 * @return bitstream buffer size
134 *
135 ******************************************************************************
136 */
ihevce_entropy_size_of_out_buffer(frm_proc_ent_cod_ctxt_t * ps_curr_inp)137 WORD32 ihevce_entropy_size_of_out_buffer(frm_proc_ent_cod_ctxt_t *ps_curr_inp)
138 {
139 WORD32 i4_size;
140
141 i4_size = (WORD32)(
142 ps_curr_inp->ps_sps->i2_pic_height_in_luma_samples *
143 ps_curr_inp->ps_sps->i2_pic_width_in_luma_samples);
144
145 return (i4_size);
146 }
147
148 /**
149 ******************************************************************************
150 *
151 * @brief Populates Memory requirements of the entropy module
152 *
153 * @par Description
154 *
155 * @param[inout] ps_mem_tab
156 * pointer to memory descriptors table
157 *
158 * @param[in] ps_init_prms
159 * Create time static parameters
160 *
161 * @param[in] i4_mem_space
162 * memspace in whihc memory request should be done
163 *
164 * @return number of memory requirements filled
165 *
166 ******************************************************************************
167 */
ihevce_entropy_get_mem_recs(iv_mem_rec_t * ps_mem_tab,ihevce_static_cfg_params_t * ps_init_prms,WORD32 i4_mem_space,WORD32 i4_resolution_id)168 WORD32 ihevce_entropy_get_mem_recs(
169 iv_mem_rec_t *ps_mem_tab,
170 ihevce_static_cfg_params_t *ps_init_prms,
171 WORD32 i4_mem_space,
172 WORD32 i4_resolution_id)
173 {
174 /* memories should be requested assuming worst case requirememnts */
175 WORD32 max_width = ps_init_prms->s_tgt_lyr_prms.as_tgt_params[i4_resolution_id].i4_width;
176 WORD32 max_height = ps_init_prms->s_tgt_lyr_prms.as_tgt_params[i4_resolution_id].i4_height;
177 WORD32 max_align_width = ALIGN64(max_width);
178 WORD32 max_align_height = ALIGN64(max_height);
179
180 /* Module context structure */
181 ps_mem_tab[ENTROPY_CTXT].i4_mem_size = sizeof(entropy_context_t);
182 ps_mem_tab[ENTROPY_CTXT].e_mem_type = (IV_MEM_TYPE_T)i4_mem_space;
183 ps_mem_tab[ENTROPY_CTXT].i4_mem_alignment = 64;
184
185 /* top row cu skip flags (1 bit per 8x8CU) */
186 ps_mem_tab[ENTROPY_TOP_SKIP_FLAGS].i4_mem_size = max_align_width >> 6;
187 ps_mem_tab[ENTROPY_TOP_SKIP_FLAGS].e_mem_type = (IV_MEM_TYPE_T)i4_mem_space;
188 ps_mem_tab[ENTROPY_TOP_SKIP_FLAGS].i4_mem_alignment = 64;
189
190 /* top row CU Depth (1 byte per 8x8CU) */
191 ps_mem_tab[ENTROPY_TOP_CU_DEPTH].i4_mem_size = (max_align_width >> 3);
192 ps_mem_tab[ENTROPY_TOP_CU_DEPTH].e_mem_type = (IV_MEM_TYPE_T)i4_mem_space;
193 ps_mem_tab[ENTROPY_TOP_CU_DEPTH].i4_mem_alignment = 64;
194
195 /* Dummy_buffer to handle first pass MBR case*/
196 ps_mem_tab[ENTROPY_DUMMY_OUT_BUF].i4_mem_size = (max_align_width * max_align_height * 2);
197 ps_mem_tab[ENTROPY_DUMMY_OUT_BUF].e_mem_type = (IV_MEM_TYPE_T)i4_mem_space;
198 ps_mem_tab[ENTROPY_DUMMY_OUT_BUF].i4_mem_alignment = 64;
199
200 return (NUM_ENTROPY_MEM_RECS);
201 }
202
203 /**
204 ******************************************************************************
205 *
206 * @brief Intialization of entropy module
207 *
208 * @par Description
209 * pointers of the memory requests done in ihevce_entropy_get_mem_recs() are
210 * used to initialized the entropy module and the handle is returned
211 *
212 * @param[inout] ps_mem_tab
213 * pointer to memory descriptors table
214 *
215 * @param[in] ps_init_prms
216 * Create time static parameters
217 *
218 * @return
219 * Handle of the entropy module returned as void ptr
220 *
221 ******************************************************************************
222 */
ihevce_entropy_init(iv_mem_rec_t * ps_mem_tab,ihevce_static_cfg_params_t * ps_init_prms,void * pv_tile_params_base,WORD32 i4_res_id)223 void *ihevce_entropy_init(
224 iv_mem_rec_t *ps_mem_tab,
225 ihevce_static_cfg_params_t *ps_init_prms,
226 void *pv_tile_params_base,
227 WORD32 i4_res_id)
228 {
229 entropy_context_t *ps_entropy_ctxt;
230
231 /* Entropy state structure */
232 ps_entropy_ctxt = (entropy_context_t *)ps_mem_tab[ENTROPY_CTXT].pv_base;
233 memset(ps_entropy_ctxt, 0, sizeof(entropy_context_t));
234
235 ps_entropy_ctxt->pu1_skip_cu_top = (UWORD8 *)ps_mem_tab[ENTROPY_TOP_SKIP_FLAGS].pv_base;
236 ps_entropy_ctxt->pu1_cu_depth_top = (UWORD8 *)ps_mem_tab[ENTROPY_TOP_CU_DEPTH].pv_base;
237 ps_entropy_ctxt->pv_dummy_out_buf = ps_mem_tab[ENTROPY_DUMMY_OUT_BUF].pv_base;
238 ps_entropy_ctxt->i4_bitstream_buf_size = ps_mem_tab[ENTROPY_DUMMY_OUT_BUF].i4_mem_size;
239
240 /* perform all one time initialisation here */
241 /*************************************************************************/
242 /* Note pu1_cbf_cb, pu1_cbf_cr initialization are done with array idx 1 */
243 /* This is because these flags are accessed as pu1_cbf_cb[tfr_depth - 1] */
244 /* without cheking for tfr_depth= 0 */
245 /*************************************************************************/
246 ps_entropy_ctxt->apu1_cbf_cb[0] = &ps_entropy_ctxt->au1_cbf_cb[0][1];
247 ps_entropy_ctxt->apu1_cbf_cr[0] = &ps_entropy_ctxt->au1_cbf_cr[0][1];
248 ps_entropy_ctxt->apu1_cbf_cb[1] = &ps_entropy_ctxt->au1_cbf_cb[1][1];
249 ps_entropy_ctxt->apu1_cbf_cr[1] = &ps_entropy_ctxt->au1_cbf_cr[1][1];
250
251 memset(ps_entropy_ctxt->au1_cbf_cb, 0, (MAX_TFR_DEPTH + 1) * 2 * sizeof(UWORD8));
252
253 /* register codec level */
254 ps_entropy_ctxt->i4_codec_level =
255 ps_init_prms->s_tgt_lyr_prms.as_tgt_params[i4_res_id].i4_codec_level;
256
257 /* Flag to enable/disable insertion of SPS, VPS & PPS at every CRA frame */
258 ps_entropy_ctxt->i4_sps_at_cdr_enable = ps_init_prms->s_out_strm_prms.i4_sps_at_cdr_enable;
259
260 /* Store Tile params base into entropy context */
261 ps_entropy_ctxt->pv_tile_params_base = pv_tile_params_base;
262
263 ps_entropy_ctxt->pv_sys_api = (void *)&ps_init_prms->s_sys_api;
264
265 ps_entropy_ctxt->i4_slice_segment_mode = ps_init_prms->s_slice_params.i4_slice_segment_mode;
266
267 /* Set slice segment length */
268 if((ps_entropy_ctxt->i4_slice_segment_mode == 1) ||
269 (ps_entropy_ctxt->i4_slice_segment_mode == 2))
270 {
271 ps_entropy_ctxt->i4_slice_segment_max_length =
272 ps_init_prms->s_slice_params.i4_slice_segment_argument;
273 }
274 else
275 {
276 ps_entropy_ctxt->i4_slice_segment_max_length = 0;
277 }
278
279 /* return the handle to caller */
280 return ((void *)ps_entropy_ctxt);
281 }
282
283 /**
284 ******************************************************************************
285 *
286 * @brief entry point for entropy coding of a frame
287 *
288 * @par Description
289 * This function generates nal headers like SPS/PPS/slice header and call the
290 * slice data entropy coding function
291 *
292 * @param[in] ps_enc_ctxt
293 * pointer to encoder context (handle)
294 *
295 * @param[out] ps_curr_out
296 * pointer to output data buffer context where bitstream is generated
297 *
298 * @param[out] ps_curr_inp
299 * pointer to entropy input params context
300 *
301 * @return success or failure error code
302 *
303 ******************************************************************************
304 */
ihevce_entropy_encode_frame(void * pv_entropy_hdl,iv_output_data_buffs_t * ps_curr_out,frm_proc_ent_cod_ctxt_t * ps_curr_inp,WORD32 i4_out_buf_size)305 WORD32 ihevce_entropy_encode_frame(
306 void *pv_entropy_hdl,
307 iv_output_data_buffs_t *ps_curr_out,
308 frm_proc_ent_cod_ctxt_t *ps_curr_inp,
309 WORD32 i4_out_buf_size)
310 {
311 WORD32 ret = IHEVCE_SUCCESS;
312 WORD32 tile_ctr, total_tiles = 1;
313 entropy_context_t *ps_entropy_ctxt = (entropy_context_t *)pv_entropy_hdl;
314
315 /* current frame slice type and nal type */
316 WORD32 slice_type = ps_curr_inp->s_slice_hdr.i1_slice_type;
317
318 /* current frame slice type and nal type */
319 WORD32 nal_type = ps_curr_inp->i4_slice_nal_type;
320
321 /* read vps, sps and pps from input params */
322 vps_t *ps_vps = ps_curr_inp->ps_vps;
323 sps_t *ps_sps = ps_curr_inp->ps_sps;
324 pps_t *ps_pps = ps_curr_inp->ps_pps;
325 sei_params_t *ps_sei = &ps_curr_inp->s_sei;
326 ihevce_tile_params_t *ps_tile_params_base;
327 WORD32 out_buf_size = i4_out_buf_size;
328
329 /* Headers are repeated once per IDR. Should be changed to every CRA */
330 WORD32 insert_vps_sps_pps =
331 ((slice_type == ISLICE) &&
332 (((NAL_IDR_N_LP == nal_type) || (NAL_CRA == nal_type)) || (NAL_IDR_W_LP == nal_type)));
333
334 WORD32 insert_per_cra =
335 ((slice_type == ISLICE) &&
336 (((NAL_IDR_N_LP == nal_type) || (NAL_CRA == nal_type)) || (NAL_IDR_W_LP == nal_type)));
337 bitstrm_t *ps_bitstrm = &ps_entropy_ctxt->s_bit_strm;
338
339 ULWORD64 u8_bits_slice_header_prev;
340
341 WORD32 i4_slice_segment_max_length_bckp;
342 WORD32 i4_max_num_slices;
343
344 ihevce_sys_api_t *ps_sys_api = (ihevce_sys_api_t *)ps_entropy_ctxt->pv_sys_api;
345
346 #if POPULATE_NAL_OFFSET
347 ULWORD64 u8_bitstream_base = (ULWORD64)ps_curr_out->pv_bitstream_bufs;
348 #endif
349 if(0 == ps_entropy_ctxt->i4_sps_at_cdr_enable)
350 {
351 insert_vps_sps_pps =
352 ((slice_type == ISLICE) && ((NAL_IDR_N_LP == nal_type) || (NAL_IDR_W_LP == nal_type)));
353 }
354 /* intialize vps, sps, pps, sei and slice header in entropy context */
355 ps_entropy_ctxt->ps_vps = ps_vps;
356 ps_entropy_ctxt->ps_sps = ps_sps;
357 ps_entropy_ctxt->ps_pps = ps_pps;
358 ps_entropy_ctxt->ps_sei = ps_sei;
359 ps_entropy_ctxt->ps_slice_hdr = &ps_curr_inp->s_slice_hdr;
360 ps_entropy_ctxt->i4_is_cu_cbf_zero = 1;
361
362 ps_entropy_ctxt->ps_pic_level_info = &ps_curr_inp->s_pic_level_info;
363
364 /* intialize the frame level ctb pointer for current slice */
365 ps_entropy_ctxt->ps_frm_ctb = ps_curr_inp->ps_frm_ctb_data;
366
367 /* Initiallizing to indicate the start of frame */
368 ps_entropy_ctxt->i4_next_slice_seg_x = 0;
369 ps_entropy_ctxt->i4_next_slice_seg_y = 0;
370
371 /* enable the residue encode flag */
372 ps_entropy_ctxt->i4_enable_res_encode = 1;
373
374 /* Initialize the bitstream engine */
375 ret |= ihevce_bitstrm_init(ps_bitstrm, (UWORD8 *)ps_curr_out->pv_bitstream_bufs, out_buf_size);
376
377 /* Reset Bitstream NAL counter */
378 ps_bitstrm->i4_num_nal = 0;
379
380 /*PIC INFO: Store the Bits before slice header is encoded*/
381 u8_bits_slice_header_prev = (ps_bitstrm->u4_strm_buf_offset * 8);
382
383 /* generate AUD if enabled from the application */
384 if(1 == ps_curr_inp->i1_aud_present_flag)
385 {
386 UWORD8 u1_pic_type;
387
388 switch(slice_type)
389 {
390 case ISLICE:
391 u1_pic_type = 0;
392 break;
393 case PSLICE:
394 u1_pic_type = 1;
395 break;
396 default:
397 u1_pic_type = 2;
398 break;
399 }
400
401 ret |= ihevce_generate_aud(ps_bitstrm, u1_pic_type);
402 }
403
404 if(insert_vps_sps_pps)
405 {
406 /* generate vps */
407 ret |= ihevce_generate_vps(ps_bitstrm, ps_entropy_ctxt->ps_vps);
408
409 /* generate sps */
410 ret |= ihevce_generate_sps(ps_bitstrm, ps_entropy_ctxt->ps_sps);
411
412 /* generate pps */
413 ret |= ihevce_generate_pps(ps_bitstrm, ps_entropy_ctxt->ps_pps);
414 }
415
416 /* generate sei */
417 if(1 == ps_entropy_ctxt->ps_sei->i1_sei_parameters_present_flag)
418 {
419 WORD32 i4_insert_prefix_sei =
420 ps_entropy_ctxt->ps_sei->i1_buf_period_params_present_flag ||
421 ps_entropy_ctxt->ps_sei->i1_pic_timing_params_present_flag ||
422 ps_entropy_ctxt->ps_sei->i1_recovery_point_params_present_flag ||
423 ps_entropy_ctxt->ps_sei->i4_sei_mastering_disp_colour_vol_params_present_flags ||
424 ps_curr_inp->u4_num_sei_payload || ps_curr_inp->s_sei.i1_sei_cll_enable;
425
426 if(i4_insert_prefix_sei)
427 {
428 ret |= ihevce_generate_sei(
429 ps_bitstrm,
430 ps_entropy_ctxt->ps_sei,
431 &ps_entropy_ctxt->ps_sps->s_vui_parameters,
432 insert_per_cra,
433 NAL_PREFIX_SEI,
434 ps_curr_inp->u4_num_sei_payload,
435 &ps_curr_inp->as_sei_payload[0]);
436 }
437 }
438
439 /*PIC INFO: Populate slice header bits */
440 ps_entropy_ctxt->ps_pic_level_info->u8_bits_estimated_slice_header +=
441 (ps_bitstrm->u4_strm_buf_offset * 8) - u8_bits_slice_header_prev;
442
443 ps_tile_params_base = (ihevce_tile_params_t *)ps_entropy_ctxt->pv_tile_params_base;
444
445 ps_curr_out->i4_bytes_generated = 0; //Init
446
447 /* ------------------- Initialize non-VCL prefix NAL Size/offsets --------------------*/
448 {
449 WORD32 num_non_vcl_prefix_nals = ps_bitstrm->i4_num_nal;
450 WORD32 ctr = 0;
451
452 ASSERT(num_non_vcl_prefix_nals <= MAX_NUM_PREFIX_NALS_PER_AU);
453
454 ps_curr_out->i4_num_non_vcl_prefix_nals = num_non_vcl_prefix_nals;
455 for(ctr = 0; ctr < MIN(num_non_vcl_prefix_nals, MAX_NUM_PREFIX_NALS_PER_AU); ctr++)
456 {
457 /* NAL offset is derive by subtracting Bistream base from NAL start pointer */
458 ULWORD64 u8_cur_nal_start = (ULWORD64)ps_bitstrm->apu1_nal_start[ctr];
459
460 #if POPULATE_NAL_SIZE
461
462 /* ----------Populate NAL Size -------------*/
463 if((ctr + 1) < num_non_vcl_prefix_nals)
464 {
465 ULWORD64 u8_next_nal_start = (ULWORD64)ps_bitstrm->apu1_nal_start[ctr + 1];
466 ps_curr_out->ai4_size_non_vcl_prefix_nals[ctr] =
467 (UWORD32)(u8_next_nal_start - u8_cur_nal_start);
468 }
469 else
470 {
471 ULWORD64 u8_next_nal_start =
472 (ULWORD64)ps_bitstrm->pu1_strm_buffer + ps_bitstrm->u4_strm_buf_offset;
473 ps_curr_out->ai4_size_non_vcl_prefix_nals[ctr] =
474 (UWORD32)(u8_next_nal_start - u8_cur_nal_start);
475 }
476 ASSERT(ps_curr_out->ai4_size_non_vcl_prefix_nals[ctr] > 0);
477
478 #elif POPULATE_NAL_OFFSET
479
480 /* ----------Populate NAL Offset -------------*/
481
482 ASSERT(u8_cur_nal_start >= u8_bitstream_base);
483 ps_curr_out->ai4_off_non_vcl_prefix_nals[ctr] =
484 (UWORD32)(u8_cur_nal_start - u8_bitstream_base);
485
486 if(ctr)
487 {
488 /* sanity check on increasing NAL offsets */
489 ASSERT(
490 ps_curr_out->ai4_off_non_vcl_prefix_nals[ctr] >
491 ps_curr_out->ai4_off_non_vcl_prefix_nals[ctr - 1]);
492 }
493 #endif /* POPULATE_NAL_SIZE */
494 }
495 }
496
497 total_tiles = ps_tile_params_base->i4_num_tiles;
498
499 /* frame level NUM slices related params initialisations */
500 {
501 WORD32 codec_level_index = ihevce_get_level_index(ps_entropy_ctxt->i4_codec_level);
502
503 i4_max_num_slices = g_as_level_data[codec_level_index].i4_max_slices_per_picture;
504 ps_entropy_ctxt->i4_num_slice_seg = 0;
505 }
506
507 /* back up slice arg length before pic encoding */
508 i4_slice_segment_max_length_bckp = ps_entropy_ctxt->i4_slice_segment_max_length;
509
510 for(tile_ctr = 0; tile_ctr < total_tiles; tile_ctr++)
511 {
512 WORD32 i4_end_of_slice = 0;
513
514 /* Loop over all the slice segments */
515 while(0 == i4_end_of_slice)
516 {
517 WORD32 i4_bytes_generated, i4_slice_header_bits;
518
519 /*PIC INFO: Store the Bits before slice header is encoded*/
520 u8_bits_slice_header_prev = (ps_bitstrm->u4_strm_buf_offset * 8);
521
522 /* generate slice header */
523 ret |= ihevce_generate_slice_header(
524 ps_bitstrm,
525 nal_type,
526 ps_entropy_ctxt->ps_slice_hdr,
527 ps_entropy_ctxt->ps_pps,
528 ps_entropy_ctxt->ps_sps,
529 &ps_entropy_ctxt->s_dup_bit_strm_ent_offset,
530 &ps_entropy_ctxt->s_cabac_ctxt.u4_first_slice_start_offset,
531 (ps_tile_params_base + tile_ctr),
532 ps_entropy_ctxt->i4_next_slice_seg_x,
533 ps_entropy_ctxt->i4_next_slice_seg_y);
534
535 i4_slice_header_bits =
536 (ps_bitstrm->u4_strm_buf_offset * 8) - (WORD32)u8_bits_slice_header_prev;
537
538 /* Update slice segment length with bytes in slice header */
539 if(2 == ps_entropy_ctxt->i4_slice_segment_mode)
540 {
541 ps_entropy_ctxt->i4_slice_seg_len = (i4_slice_header_bits / 8);
542 }
543 else //Initiallize to zero
544 {
545 ps_entropy_ctxt->i4_slice_seg_len = 0;
546 }
547
548 /*PIC INFO: Populate slice header bits */
549 ps_entropy_ctxt->ps_pic_level_info->u8_bits_estimated_slice_header +=
550 i4_slice_header_bits;
551
552 /* check if number of slices generated in is MAX -1 as per codec_level */
553 if(ps_entropy_ctxt->i4_num_slice_seg == (i4_max_num_slices - 1))
554 {
555 /* i4_slice_segment_max_length is set to a huge positive value */
556 /* so that remaining CTBS in the picture gets encoded as a single slice */
557 ps_entropy_ctxt->i4_slice_segment_max_length = 0x7FFFFFFF;
558 }
559
560 /* encode the slice data */
561 ret |= ihevce_encode_slice_data(
562 ps_entropy_ctxt, (ps_tile_params_base + tile_ctr), &i4_end_of_slice);
563
564 /* increment the number of slices generated */
565 ps_entropy_ctxt->i4_num_slice_seg++;
566
567 if(1 == ps_pps->i1_entropy_coding_sync_enabled_flag)
568 {
569 /*after encoding is done each slice offset is available. Enter these offset in slice header*/
570 ihevce_insert_entry_offset_slice_header(
571 &ps_entropy_ctxt->s_dup_bit_strm_ent_offset,
572 ps_entropy_ctxt->ps_slice_hdr,
573 ps_entropy_ctxt->ps_pps,
574 ps_entropy_ctxt->s_cabac_ctxt.u4_first_slice_start_offset);
575 }
576
577 /* compute the bytes generated and return */
578 if(1 == ps_pps->i1_entropy_coding_sync_enabled_flag)
579 {
580 i4_bytes_generated = ps_entropy_ctxt->s_dup_bit_strm_ent_offset.u4_strm_buf_offset;
581 }
582 else
583 {
584 i4_bytes_generated = ps_entropy_ctxt->s_cabac_ctxt.u4_strm_buf_offset;
585 }
586
587 /* Updating bytes generated and Updating strm_buffer pointer */
588 ps_curr_out->i4_bytes_generated += i4_bytes_generated;
589
590 /* Re-Initialize the bitstream engine after each tile or slice */
591 ihevce_bitstrm_init(
592 ps_bitstrm, (ps_bitstrm->pu1_strm_buffer + i4_bytes_generated), out_buf_size);
593 }
594 }
595
596 /* Max slices related warning prints based on last slice status */
597 if(ps_entropy_ctxt->i4_num_slice_seg == i4_max_num_slices)
598 {
599 if(ps_entropy_ctxt->i4_slice_seg_len >= i4_slice_segment_max_length_bckp)
600 {
601 if(1 == ps_entropy_ctxt->i4_slice_segment_mode)
602 {
603 ps_sys_api->ihevce_printf(
604 ps_sys_api->pv_cb_handle,
605 "IHEVCE_WARNING: Last slice contains %d CTBs exceeds %d (Max limit of CTBs "
606 "configured). As per codec_level max number of slices per frame is %d\n",
607 ps_entropy_ctxt->i4_slice_seg_len,
608 i4_slice_segment_max_length_bckp,
609 i4_max_num_slices);
610 }
611 else if(2 == ps_entropy_ctxt->i4_slice_segment_mode)
612 {
613 ps_sys_api->ihevce_printf(
614 ps_sys_api->pv_cb_handle,
615 "IHEVCE_WARNING: Last slice contains %d Bytes exceeds %d (Max limit of Bytes "
616 "configured). As per codec_level max number of slices per frame is %d\n",
617 ps_entropy_ctxt->i4_slice_seg_len,
618 i4_slice_segment_max_length_bckp,
619 i4_max_num_slices);
620 }
621 }
622 }
623
624 /* restore slice arg length after pic encoding */
625 ps_entropy_ctxt->i4_slice_segment_max_length = i4_slice_segment_max_length_bckp;
626
627 /* ---------------------- Initialize VCL NAL Size/offsets ---------------------------*/
628 {
629 WORD32 vcl_start = ps_curr_out->i4_num_non_vcl_prefix_nals;
630 WORD32 num_vcl_nals = ps_bitstrm->i4_num_nal - vcl_start;
631 WORD32 ctr = 0;
632
633 ASSERT(num_vcl_nals > 0);
634 ASSERT(num_vcl_nals <= MAX_NUM_VCL_NALS_PER_AU);
635
636 ps_curr_out->i4_num_vcl_nals = num_vcl_nals;
637 for(ctr = 0; ctr < MIN(num_vcl_nals, MAX_NUM_VCL_NALS_PER_AU); ctr++)
638 {
639 /* NAL offset is derive by subtracting Bistream base from NAL start pointer */
640 ULWORD64 u8_cur_nal_start = (ULWORD64)ps_bitstrm->apu1_nal_start[ctr + vcl_start];
641
642 #if POPULATE_NAL_SIZE
643
644 /* ----------Populate NAL Size -------------*/
645 if((ctr + 1) < num_vcl_nals)
646 {
647 ULWORD64 u8_next_nal_start =
648 (ULWORD64)ps_bitstrm->apu1_nal_start[ctr + vcl_start + 1];
649 ps_curr_out->ai4_size_vcl_nals[ctr] =
650 (UWORD32)(u8_next_nal_start - u8_cur_nal_start);
651 }
652 else
653 {
654 ULWORD64 u8_next_nal_start =
655 (ULWORD64)ps_bitstrm->pu1_strm_buffer + ps_bitstrm->u4_strm_buf_offset;
656 ps_curr_out->ai4_size_vcl_nals[ctr] =
657 (UWORD32)(u8_next_nal_start - u8_cur_nal_start);
658 }
659 ASSERT(ps_curr_out->ai4_size_vcl_nals[ctr] > 0);
660
661 #elif POPULATE_NAL_OFFSET
662
663 /* ----------Populate NAL Offset -------------*/
664
665 ASSERT(u8_cur_nal_start >= u8_bitstream_base);
666 ps_curr_out->ai4_off_vcl_nals[ctr] = (UWORD32)(u8_cur_nal_start - u8_bitstream_base);
667
668 if(ctr)
669 {
670 /* sanity check on increasing NAL offsets */
671 ASSERT(ps_curr_out->ai4_off_vcl_nals[ctr] > ps_curr_out->ai4_off_vcl_nals[ctr - 1]);
672 }
673 #endif /* POPULATE_NAL_SIZE */
674 }
675 }
676
677 /* generate suffix sei */
678 if(1 == ps_entropy_ctxt->ps_sei->i1_sei_parameters_present_flag)
679 {
680 /* Insert hash SEI */
681 if(0 != ps_entropy_ctxt->ps_sei->i1_decoded_pic_hash_sei_flag)
682 {
683 ret |= ihevce_generate_sei(
684 ps_bitstrm,
685 ps_entropy_ctxt->ps_sei,
686 &ps_entropy_ctxt->ps_sps->s_vui_parameters,
687 insert_per_cra,
688 NAL_SUFFIX_SEI,
689 ps_curr_inp->u4_num_sei_payload,
690 &ps_curr_inp->as_sei_payload[0]);
691 }
692
693 /* Updating bytes generated */
694 ps_curr_out->i4_bytes_generated += ps_bitstrm->u4_strm_buf_offset;
695 }
696
697 /* generate end of sequence nal */
698 if((1 == ps_curr_inp->i1_eos_present_flag) && (ps_curr_inp->i4_is_end_of_idr_gop == 1))
699 {
700 ret |= ihevce_generate_eos(ps_bitstrm);
701 /* Updating bytes generated */
702 ps_curr_out->i4_bytes_generated += ps_bitstrm->u4_strm_buf_offset;
703 }
704
705 /* ------------------- Initialize non-VCL suffix NAL Size/offsets -----------------------*/
706 {
707 WORD32 non_vcl_suffix_start =
708 ps_curr_out->i4_num_non_vcl_prefix_nals + ps_curr_out->i4_num_vcl_nals;
709 WORD32 num_non_vcl_suffix_nals = ps_bitstrm->i4_num_nal - non_vcl_suffix_start;
710 WORD32 ctr = 0;
711
712 ASSERT(num_non_vcl_suffix_nals >= 0);
713 ASSERT(num_non_vcl_suffix_nals <= MAX_NUM_SUFFIX_NALS_PER_AU);
714
715 ps_curr_out->i4_num_non_vcl_suffix_nals = num_non_vcl_suffix_nals;
716 for(ctr = 0; ctr < MIN(num_non_vcl_suffix_nals, MAX_NUM_SUFFIX_NALS_PER_AU); ctr++)
717 {
718 /* NAL offset is derive by subtracting Bistream base from NAL start pointer */
719 ULWORD64 u8_cur_nal_start =
720 (ULWORD64)ps_bitstrm->apu1_nal_start[ctr + non_vcl_suffix_start];
721
722 #if POPULATE_NAL_SIZE
723
724 /* ----------Populate NAL Size -------------*/
725 if((ctr + 1) < num_non_vcl_suffix_nals)
726 {
727 ULWORD64 u8_next_nal_start =
728 (ULWORD64)ps_bitstrm->apu1_nal_start[ctr + non_vcl_suffix_start + 1];
729 ps_curr_out->ai4_size_non_vcl_suffix_nals[ctr] =
730 (UWORD32)(u8_next_nal_start - u8_cur_nal_start);
731 }
732 else
733 {
734 ULWORD64 u8_next_nal_start =
735 (ULWORD64)ps_bitstrm->pu1_strm_buffer + ps_bitstrm->u4_strm_buf_offset;
736 ps_curr_out->ai4_size_non_vcl_suffix_nals[ctr] =
737 (UWORD32)(u8_next_nal_start - u8_cur_nal_start);
738 }
739 ASSERT(ps_curr_out->ai4_size_non_vcl_suffix_nals[ctr] > 0);
740
741 #elif POPULATE_NAL_OFFSET
742
743 /* ----------Populate NAL Offset -------------*/
744
745 ASSERT(u8_cur_nal_start >= u8_bitstream_base);
746 ps_curr_out->ai4_off_non_vcl_suffix_nals[ctr] =
747 (UWORD32)(u8_cur_nal_start - u8_bitstream_base);
748
749 if(ctr)
750 {
751 /* sanity check on increasing NAL offsets */
752 ASSERT(
753 ps_curr_out->ai4_off_non_vcl_suffix_nals[ctr] >
754 ps_curr_out->ai4_off_non_vcl_suffix_nals[ctr - 1]);
755 }
756 #endif /* POPULATE_NAL_SIZE */
757 }
758 }
759
760 /*PIC INFO: Populatinf Ref POC, weights and offset*/
761 {
762 WORD32 i;
763 ps_entropy_ctxt->ps_pic_level_info->i1_num_ref_idx_l0_active =
764 ps_entropy_ctxt->ps_slice_hdr->i1_num_ref_idx_l0_active;
765 ps_entropy_ctxt->ps_pic_level_info->i1_num_ref_idx_l1_active =
766 ps_entropy_ctxt->ps_slice_hdr->i1_num_ref_idx_l1_active;
767 for(i = 0; i < ps_entropy_ctxt->ps_slice_hdr->i1_num_ref_idx_l0_active; i++)
768 {
769 ps_entropy_ctxt->ps_pic_level_info->i4_ref_poc_l0[i] =
770 ps_entropy_ctxt->ps_slice_hdr->s_rplm.i4_ref_poc_l0[i];
771 ps_entropy_ctxt->ps_pic_level_info->i1_list_entry_l0[i] =
772 ps_entropy_ctxt->ps_slice_hdr->s_rplm.i1_list_entry_l0[i];
773 ps_entropy_ctxt->ps_pic_level_info->i2_luma_weight_l0[i] =
774 (DOUBLE)ps_entropy_ctxt->ps_slice_hdr->s_wt_ofst.i2_luma_weight_l0[i] /
775 (1 << ps_entropy_ctxt->ps_slice_hdr->s_wt_ofst.i1_luma_log2_weight_denom);
776 ps_entropy_ctxt->ps_pic_level_info->i2_luma_offset_l0[i] =
777 ps_entropy_ctxt->ps_slice_hdr->s_wt_ofst.i2_luma_offset_l0[i];
778 }
779 for(i = 0; i < ps_entropy_ctxt->ps_slice_hdr->i1_num_ref_idx_l1_active; i++)
780 {
781 ps_entropy_ctxt->ps_pic_level_info->i4_ref_poc_l1[i] =
782 ps_entropy_ctxt->ps_slice_hdr->s_rplm.i4_ref_poc_l1[i];
783 ps_entropy_ctxt->ps_pic_level_info->i1_list_entry_l1[i] =
784 ps_entropy_ctxt->ps_slice_hdr->s_rplm.i1_list_entry_l1[i];
785 ps_entropy_ctxt->ps_pic_level_info->i2_luma_weight_l1[i] =
786 (DOUBLE)ps_entropy_ctxt->ps_slice_hdr->s_wt_ofst.i2_luma_weight_l1[i] /
787 (1 << ps_entropy_ctxt->ps_slice_hdr->s_wt_ofst.i1_luma_log2_weight_denom);
788 ps_entropy_ctxt->ps_pic_level_info->i2_luma_offset_l1[i] =
789 ps_entropy_ctxt->ps_slice_hdr->s_wt_ofst.i2_luma_offset_l1[i];
790 }
791 }
792
793 /* attach the time stamp of the input to output */
794 ps_curr_out->i4_out_timestamp_low = ps_curr_inp->i4_inp_timestamp_low;
795
796 ps_curr_out->i4_out_timestamp_high = ps_curr_inp->i4_inp_timestamp_high;
797
798 /*attach the app frame info of this buffer */
799 ps_curr_out->pv_app_frm_ctxt = ps_curr_inp->pv_app_frm_ctxt;
800
801 /* frame never skipped for now */
802 ps_curr_out->i4_frame_skipped = 0;
803
804 /* update error code and return */
805 ps_curr_out->i4_process_error_code = ret;
806
807 switch(slice_type)
808 {
809 case ISLICE:
810 if((nal_type == NAL_IDR_N_LP) || (NAL_IDR_W_LP == nal_type))
811 {
812 ps_curr_out->i4_encoded_frame_type = IV_IDR_FRAME;
813 }
814 else
815 {
816 ps_curr_out->i4_encoded_frame_type = IV_I_FRAME;
817 }
818 break;
819 case PSLICE:
820 ps_curr_out->i4_encoded_frame_type = IV_P_FRAME;
821 break;
822 case BSLICE:
823 ps_curr_out->i4_encoded_frame_type = IV_B_FRAME;
824 break;
825 }
826
827 if(IHEVCE_SUCCESS == ret)
828 {
829 ps_curr_out->i4_process_ret_sts = IV_SUCCESS;
830 }
831 else
832 {
833 ps_curr_out->i4_process_ret_sts = IV_FAIL;
834 }
835
836 return (ret);
837 }
838