• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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 *******************************************************************************
23 * @file
24 *  ih264e_structs.h
25 *
26 * @brief
27 *  Structure definitions used in the encoder
28 *
29 * @author
30 *  Harish
31 *
32 * @remarks
33 *  None
34 *
35 *******************************************************************************
36 */
37 
38 #ifndef IH264E_STRUCTS_H_
39 #define IH264E_STRUCTS_H_
40 
41 /*****************************************************************************/
42 /* Structure definitions                                                    */
43 /*****************************************************************************/
44 
45 /* Early declaration of structs */
46 typedef struct _codec_t codec_t;
47 typedef struct _proc_t process_ctxt_t;
48 
49 
50 /*****************************************************************************/
51 /* Extern Function type definitions                                          */
52 /*****************************************************************************/
53 
54 /**
55 ******************************************************************************
56  *  @brief      intra prediction filters leaf level
57 ******************************************************************************
58  */
59 typedef void (*pf_intra_pred)(UWORD8 *pu1_src, UWORD8 *pu1_dst,
60                               WORD32 src_strd, WORD32 dst_strd,
61                               WORD32 ui_neighboravailability);
62 
63 /**
64 ******************************************************************************
65  *  @brief      inter prediction filters leaf level
66 ******************************************************************************
67  */
68 
69 typedef void (*pf_inter_pred_luma_bilinear)(UWORD8 *pu1_src1, UWORD8 *pu1_src2, UWORD8 *pu1_dst,
70                                             WORD32 src_strd1, WORD32 src_strd2, WORD32 dst_strd,
71                                             WORD32 height, WORD32 width);
72 
73 /**
74 ******************************************************************************
75  *  @brief      fwd transform leaf level
76 ******************************************************************************
77  */
78 typedef void (*pf_trans_quant)(UWORD8*pu1_src, UWORD8 *pu1_pred, WORD16 *pi2_out,
79                                WORD32 i4_src_stride, UWORD32 u4_pred_stride, UWORD32 u4_dst_stride,
80                                const UWORD16 *pu2_scale_mat, const UWORD16 *pu2_thresh_mat,
81                                UWORD32 u4_qbit, UWORD32 u4_round_fact, UWORD8 *pu1_nnz);
82 
83 typedef void (*pf_iquant_itrans)(WORD16 *pi2_src, UWORD8 *pu1_pred, UWORD8 *pu1_out,
84                                  WORD32 i4_src_stride, UWORD32 u4_pred_stride, UWORD32 u4_out_stride,
85                                  const UWORD16 *pu2_iscale_mat, const UWORD16 *pu2_weigh_mat,
86                                  UWORD32 qp_div, WORD32 *pi4_tmp);
87 
88 /**
89 ******************************************************************************
90  *  @brief      Padding leaf level
91 ******************************************************************************
92  */
93 typedef void (*pf_pad)(UWORD8 *pu1_src, WORD32 src_strd, WORD32 wd, WORD32 pad_size);
94 
95 /**
96 ******************************************************************************
97  *  @brief      memory handling leaf level
98 ******************************************************************************
99  */
100 typedef void (*pf_memcpy)(UWORD8 *pu1_dst, UWORD8 *pu1_src, UWORD32 num_bytes);
101 
102 typedef void (*pf_memset)(UWORD8 *pu1_dst, UWORD8 value, UWORD32 num_bytes);
103 
104 typedef void (*pf_memcpy_mul8)(UWORD8 *pu1_dst, UWORD8 *pu1_src, UWORD32 num_bytes);
105 
106 typedef void (*pf_memset_mul8)(UWORD8 *pu1_dst, UWORD8 value, UWORD32 num_bytes);
107 
108 /**
109 ******************************************************************************
110  *  @brief      Sad computation
111 ******************************************************************************
112  */
113 typedef void (*pf_compute_sad)(UWORD8 *pu1_src, UWORD8 *pu1_est,
114                                UWORD32 src_strd, UWORD32 est_strd,
115                                WORD32 i4_max_sad, WORD32 *pi4_mb_distortion);
116 
117 /**
118 ******************************************************************************
119  *  @brief     Intra mode eval:encoder level
120 ******************************************************************************
121  */
122 typedef void (*pf_evaluate_intra_modes)(UWORD8 *pu1_src, UWORD8 *pu1_ngbr_pels_i16, UWORD8 *pu1_dst,
123                                         UWORD32 src_strd, UWORD32 dst_strd,
124                                         WORD32 u4_n_avblty, UWORD32 *u4_intra_mode,
125                                         WORD32 *pu4_sadmin,
126                                         UWORD32 u4_valid_intra_modes);
127 
128 typedef void (*pf_evaluate_intra_4x4_modes)(UWORD8 *pu1_src, UWORD8 *pu1_ngbr_pels, UWORD8 *pu1_dst,
129                                             UWORD32 src_strd, UWORD32 dst_strd,
130                                             WORD32 u4_n_avblty, UWORD32 *u4_intra_mode,
131                                             WORD32 *pu4_sadmin,
132                                             UWORD32 u4_valid_intra_modes, UWORD32 u4_lambda,
133                                             UWORD32 u4_predictd_mode);
134 
135 /**
136 ******************************************************************************
137  *  @brief     half_pel generation :encoder level
138 ******************************************************************************
139  */
140 typedef void (*pf_sixtapfilter_horz)(UWORD8 *pu1_src, UWORD8 *pu1_dst,
141                                      WORD32 src_strd, WORD32 dst_strd);
142 
143 typedef void (*pf_sixtap_filter_2dvh_vert)(UWORD8 *pu1_src, UWORD8 *pu1_dst1, UWORD8 *pu1_dst2,
144                                            WORD32 src_strd, WORD32 dst_strd,
145                                            WORD32 *pi16_pred1,
146                                            WORD32 pi16_pred1_strd);
147 /**
148 ******************************************************************************
149  *  @brief     color space conversion
150 ******************************************************************************
151  */
152 typedef void (*pf_fmt_conv_420p_to_420sp)(UWORD8 *pu1_y_src, UWORD8 *pu1_u_src, UWORD8 *pu1_v_src,
153                                           UWORD8 *pu1_y_dst, UWORD8 *pu1_uv_dst,
154                                           UWORD16 u2_height, UWORD16 u2_width,
155                                           UWORD16 src_y_strd, UWORD16 src_u_strd, UWORD16 src_v_strd,
156                                           UWORD16 dst_y_strd, UWORD16 dst_uv_strd,
157                                           UWORD32 convert_uv_only);
158 
159 typedef void (*pf_fmt_conv_422ile_to_420sp)(UWORD8 *pu1_y_buf, UWORD8 *pu1_u_buf, UWORD8 *pu1_v_buf,
160                                             UWORD8 *pu1_422i_buf,
161                                             WORD32 u4_y_width, WORD32 u4_y_height, WORD32 u4_y_stride,
162                                             WORD32 u4_u_stride, WORD32 u4_v_stride,
163                                             WORD32 u4_422i_stride);
164 
165 
166 
167 /**
168 ******************************************************************************
169  *  @brief     ME evaluation
170 ******************************************************************************
171  */
172 typedef void ih264e_compute_me_ft(process_ctxt_t *);
173 
174 /**
175 ******************************************************************************
176  *  @brief     SKIP decision
177 ******************************************************************************
178  */
179 typedef WORD32 ih264e_skip_params_ft(process_ctxt_t *, WORD32);
180 
181 
182 /*****************************************************************************/
183 /* Enums                                                                     */
184 /*****************************************************************************/
185 
186 /**
187  ******************************************************************************
188  *  @enum  CODEC_STATE_T
189  *  @brief codec state
190  ******************************************************************************
191  */
192 typedef enum
193 {
194     INIT_DONE,
195     HEADER_DONE,
196     FIRST_FRAME_DONE,
197 } CODEC_STATE_T;
198 
199 
200 /**
201  ******************************************************************************
202  *  @enum  JOBQ_CMD_T
203  *  @brief list of job commands (used during job instantiation)
204  ******************************************************************************
205  */
206 typedef enum
207 {
208     CMD_PROCESS,
209     CMD_ENTROPY,
210     CMD_FMTCONV,
211     CMD_ME,
212 }JOBQ_CMD_T;
213 
214 
215 /*****************************************************************************/
216 /* Structures                                                                */
217 /*****************************************************************************/
218 
219 /**
220  * PU information
221  */
222 typedef struct
223 {
224     /**
225      *  Motion Vector
226      */
227     mv_t s_mv;
228 
229     /**
230      *  Ref index
231      */
232     WORD8   i1_ref_idx;
233 
234 } enc_pu_mv_t;
235 
236 
237 /*
238  * Total Pu info for an MB
239  */
240 typedef struct
241 {
242 
243     /* Array with ME info for all lists */
244     enc_pu_mv_t  s_me_info[2];
245 
246     /**
247      *  PU X position in terms of min PU (4x4) units
248      */
249     UWORD32     b4_pos_x        : 4;
250 
251     /**
252      *  PU Y position in terms of min PU (4x4) units
253      */
254     UWORD32     b4_pos_y        : 4;
255 
256     /**
257      *  PU width in pixels = (b4_wd + 1) << 2
258      */
259     UWORD32     b4_wd           : 2;
260 
261     /**
262      *  PU height in pixels = (b4_ht + 1) << 2
263      */
264     UWORD32     b4_ht           : 2;
265 
266     /**
267      *  Intra or Inter flag for each partition - 0 or 1
268      */
269     UWORD32     b1_intra_flag   : 1;
270 
271     /**
272      *  PRED_L0, PRED_L1, PRED_BI
273      */
274     UWORD32     b2_pred_mode    : 2;
275 
276 
277 } enc_pu_t;
278 
279 
280 typedef struct
281 {
282     /** Descriptor of raw buffer                                     */
283     iv_raw_buf_t                            s_raw_buf;
284 
285     /** Lower 32bits of time stamp corresponding to the above buffer */
286     UWORD32                                 u4_timestamp_low;
287 
288     /** Upper 32bits of time stamp corresponding to the above buffer */
289     UWORD32                                 u4_timestamp_high;
290 
291     /** Flag to indicate if the current buffer is last buffer */
292     UWORD32                                 u4_is_last;
293 
294     /** Flag to indicate if mb info is sent along with input buffer     */
295     UWORD32                                 u4_mb_info_type;
296 
297     /** Flag to indicate the size of mb info structure                  */
298     UWORD32                                 u4_mb_info_size;
299 
300     /** Buffer containing mb info if mb_info_type is non-zero           */
301     void                                    *pv_mb_info;
302 
303     /** Flag to indicate if pic info is sent along with input buffer     */
304     UWORD32                                 u4_pic_info_type;
305 
306     /** Buffer containing pic info if mb_info_type is non-zero           */
307     void                                    *pv_pic_info;
308 
309 }inp_buf_t;
310 
311 typedef struct
312 {
313     /** Descriptor of bitstream buffer                                     */
314     iv_bits_buf_t                           s_bits_buf;
315 
316     /** Lower 32bits of time stamp corresponding to the above buffer */
317     UWORD32                                 u4_timestamp_low;
318 
319     /** Upper 32bits of time stamp corresponding to the above buffer */
320     UWORD32                                 u4_timestamp_high;
321 
322     /** Flag to indicate if the current buffer is last buffer */
323     UWORD32                                 u4_is_last;
324 
325 }out_buf_t;
326 
327 typedef struct
328 {
329     /** Descriptor of picture buffer                                     */
330     pic_buf_t                               s_pic_buf;
331 
332     /** Lower 32bits of time stamp corresponding to the above buffer */
333     UWORD32                                 u4_timestamp_low;
334 
335     /** Upper 32bits of time stamp corresponding to the above buffer */
336     UWORD32                                 u4_timestamp_high;
337 
338     /** Flag to indicate if the current buffer is last buffer */
339     UWORD32                                 u4_is_last;
340 
341     /** Picture count corresponding to current picture */
342     WORD32                                  i4_pic_cnt;
343 
344 }rec_buf_t;
345 
346 typedef struct
347 {
348     /** maximum width for which codec should request memory requirements    */
349     UWORD32                                     u4_max_wd;
350 
351     /** maximum height for which codec should request memory requirements   */
352     UWORD32                                     u4_max_ht;
353 
354     /** Maximum number of reference frames                                  */
355     UWORD32                                     u4_max_ref_cnt;
356 
357     /** Maximum number of reorder frames                                    */
358     UWORD32                                     u4_max_reorder_cnt;
359 
360     /** Maximum level supported                                             */
361     UWORD32                                     u4_max_level;
362 
363     /** Input color format                                                  */
364     IV_COLOR_FORMAT_T                           e_inp_color_fmt;
365 
366     /** Flag to enable/disable - To be used only for debugging/testing      */
367     UWORD32                                     u4_enable_recon;
368 
369     /** Recon color format                                                  */
370     IV_COLOR_FORMAT_T                           e_recon_color_fmt;
371 
372     /** Encoder Speed preset - Value between 0 (slowest) and 100 (fastest)  */
373     IVE_SPEED_CONFIG                            u4_enc_speed_preset;
374 
375     /** Rate control mode                                                   */
376     IVE_RC_MODE_T                               e_rc_mode;
377 
378     /** Maximum frame rate to be supported                                  */
379     UWORD32                                     u4_max_framerate;
380 
381     /** Maximum bitrate to be supported                                     */
382     UWORD32                                     u4_max_bitrate;
383 
384     /** Maximum number of consecutive  B frames                             */
385     UWORD32                                     u4_num_bframes;
386 
387     /** Content type Interlaced/Progressive                                 */
388     IV_CONTENT_TYPE_T                           e_content_type;
389 
390     /** Maximum search range to be used in X direction                      */
391     UWORD32                                     u4_max_srch_rng_x;
392 
393     /** Maximum search range to be used in Y direction                      */
394     UWORD32                                     u4_max_srch_rng_y;
395 
396     /** Slice Mode                                                          */
397     IVE_SLICE_MODE_T                            e_slice_mode;
398 
399     /** Slice parameter                                                     */
400     UWORD32                                     u4_slice_param;
401 
402     /** Processor architecture                                          */
403     IV_ARCH_T                                   e_arch;
404 
405     /** SOC details                                                     */
406     IV_SOC_T                                    e_soc;
407 
408     /** Input width to be sent in bitstream                                */
409     UWORD32                                     u4_disp_wd;
410 
411     /** Input height to be sent in bitstream                               */
412     UWORD32                                     u4_disp_ht;
413 
414     /** Input width                                                     */
415     UWORD32                                     u4_wd;
416 
417     /** Input height                                                    */
418     UWORD32                                     u4_ht;
419 
420     /** Input stride                                                    */
421     UWORD32                                     u4_strd;
422 
423     /** Source frame rate                                               */
424     UWORD32                                     u4_src_frame_rate;
425 
426     /** Target frame rate                                               */
427     UWORD32                                     u4_tgt_frame_rate;
428 
429     /** Target bitrate in kilobits per second                           */
430     UWORD32                                     u4_target_bitrate;
431 
432     /** Force current frame type                                        */
433     IV_PICTURE_CODING_TYPE_T                    e_frame_type;
434 
435     /** Encoder mode                                                    */
436     IVE_ENC_MODE_T                              e_enc_mode;
437 
438     /** Set initial Qp for I pictures                                   */
439     UWORD32                                     u4_i_qp;
440 
441     /** Set initial Qp for P pictures                                   */
442     UWORD32                                     u4_p_qp;
443 
444     /** Set initial Qp for B pictures                                   */
445     UWORD32                                     u4_b_qp;
446 
447     /** Set minimum Qp for I pictures                                   */
448     UWORD32                                     u4_i_qp_min;
449 
450     /** Set maximum Qp for I pictures                                   */
451     UWORD32                                     u4_i_qp_max;
452 
453     /** Set minimum Qp for P pictures                                   */
454     UWORD32                                     u4_p_qp_min;
455 
456     /** Set maximum Qp for P pictures                                   */
457     UWORD32                                     u4_p_qp_max;
458 
459     /** Set minimum Qp for B pictures                                   */
460     UWORD32                                     u4_b_qp_min;
461 
462     /** Set maximum Qp for B pictures                                   */
463     UWORD32                                     u4_b_qp_max;
464 
465     /** Adaptive intra refresh mode                                     */
466     IVE_AIR_MODE_T                              e_air_mode;
467 
468     /** Adaptive intra refresh period in frames                         */
469     UWORD32                                     u4_air_refresh_period;
470 
471     /** VBV buffer delay                                                */
472     UWORD32                                     u4_vbv_buffer_delay;
473 
474     /** VBV buffer size                                                 */
475     UWORD32                                     u4_vbv_buf_size;
476 
477     /** Number of cores to be used                                      */
478     UWORD32                                     u4_num_cores;
479 
480     /** ME speed preset - Value between 0 (slowest) and 100 (fastest)      */
481     UWORD32                                     u4_me_speed_preset;
482 
483     /** Flag to enable/disable half pel motion estimation               */
484     UWORD32                                     u4_enable_hpel;
485 
486     /** Flag to enable/disable quarter pel motion estimation            */
487     UWORD32                                     u4_enable_qpel;
488 
489     /** Flag to enable/disable intra 4x4 analysis                       */
490     UWORD32                                     u4_enable_intra_4x4;
491 
492     /** Flag to enable/disable intra 8x8 analysis                       */
493     UWORD32                                     u4_enable_intra_8x8;
494 
495     /** Flag to enable/disable intra 16x16 analysis                     */
496     UWORD32                                     u4_enable_intra_16x16;
497 
498     /** Flag to enable/disable fast SAD approximation                   */
499     UWORD32                                     u4_enable_fast_sad;
500 
501     /*flag to enable/disable alternate reference frames                 */
502     UWORD32                                     u4_enable_alt_ref;
503 
504     /*Flag to enable/disable computation of SATDQ in ME*/
505     UWORD32                                     u4_enable_satqd;
506 
507     /*Minimum SAD to search for*/
508     WORD32                                     i4_min_sad;
509 
510     /** Maximum search range in X direction for farthest reference      */
511     UWORD32                                     u4_srch_rng_x;
512 
513     /** Maximum search range in Y direction for farthest reference      */
514     UWORD32                                     u4_srch_rng_y;
515 
516     /** I frame interval                                                */
517     UWORD32                                     u4_i_frm_interval;
518 
519     /** IDR frame interval                                              */
520     UWORD32                                     u4_idr_frm_interval;
521 
522     /** Disable deblock level (0: Enable completely, 3: Disable completely */
523     UWORD32                                     u4_disable_deblock_level;
524 
525     /** Profile                                                         */
526     IV_PROFILE_T                                e_profile;
527 
528     /** Lower 32bits of time stamp corresponding to input buffer,
529      * from which this command takes effect                             */
530     UWORD32                                     u4_timestamp_low;
531 
532     /** Upper 32bits of time stamp corresponding to input buffer,
533      * from which this command takes effect                             */
534     UWORD32                                     u4_timestamp_high;
535 
536     /** Flag to say if the current config parameter set is valid
537      * Will be zero to start with and will be set to 1, when configured
538      * Once encoder uses the parameter set, this will be set to zero */
539     UWORD32                                     u4_is_valid;
540 
541     /** Command associated with this config param set */
542     IVE_CONTROL_API_COMMAND_TYPE_T              e_cmd;
543 
544     /** Input width in mbs                                                    */
545     UWORD32                                     i4_wd_mbs;
546 
547     /** Input height in mbs                                                   */
548     UWORD32                                     i4_ht_mbs;
549 
550     /** entropy coding mode flag                                              */
551     UWORD32                                     u4_entropy_coding_mode;
552 
553     /** enable weighted prediction                                            */
554     UWORD32                                     u4_weighted_prediction;
555 
556     /** enable constrained intra prediction                                   */
557     UWORD32                                     u4_constrained_intra_pred;
558 
559     /** Pic info type */
560     UWORD32                                     u4_pic_info_type;
561     /**
562      * MB info type
563      */
564     UWORD32                                     u4_mb_info_type;
565 
566 }cfg_params_t;
567 
568 
569 
570 /** Structure to hold format conversion context */
571 typedef struct
572 {
573     /** Current row for which format conversion should be done */
574     WORD32 i4_cur_row;
575 
576     /** Number of rows for which format conversion should be done */
577     WORD32 i4_num_rows;
578 
579 }fmt_conv_t;
580 
581 
582 /**
583  * Structure to represent a processing job entry
584  */
585 typedef struct
586 {
587     /**
588      * Command
589      */
590     WORD32 i4_cmd;
591 
592     /**
593      * MB x of the starting MB
594      */
595     WORD16 i2_mb_x;
596 
597     /**
598      * MB y of the starting MB
599      */
600 
601     WORD16 i2_mb_y;
602 
603     /**
604      * Number of MBs that need to be processed in this job
605      */
606     WORD16 i2_mb_cnt;
607 
608     /**
609      * Process contexts base index
610      * Will toggle between 0 and MAX_PROCESS_THREADS
611      */
612     WORD16 i2_proc_base_idx;
613 
614 } job_t;
615 
616 
617 /**
618  * Structure to represent a MV Bank buffer
619  */
620 typedef struct
621 {
622     /**
623      *  Pointer to hold num PUs each MB in a picture
624      */
625     UWORD32 *pu4_mb_pu_cnt;
626 
627     /**
628      * Pointer to hold enc_pu_t for each PU in a picture
629      */
630     enc_pu_t *ps_pic_pu;
631 
632     /**
633      * Pointer to hold PU map for each MB in a picture
634      */
635     UWORD8 *pu1_pic_pu_map;
636 
637     /**
638      * Pointer to hold the Slice map
639      */
640     UWORD16 *pu1_pic_slice_map;
641 
642     /**
643      * Absolute POC for the current MV Bank
644      */
645     WORD32 i4_abs_poc;
646 
647     /**
648      * Buffer Id
649      */
650     WORD32     i4_buf_id;
651 
652 } mv_buf_t;
653 
654 
655 /**
656  * Reference set containing pointers to MV buf and pic buf
657  */
658 typedef struct
659 {
660     /** Picture count */
661     WORD32    i4_pic_cnt;
662 
663     /** POC */
664     WORD32    i4_poc;
665 
666     /** picture buffer */
667     pic_buf_t *ps_pic_buf;
668 
669     /** mv buffer */
670     mv_buf_t  *ps_mv_buf;
671 
672 }ref_set_t;
673 
674 typedef struct
675 {
676 
677     /**
678      * Pointer to current PPS
679      */
680     pps_t *ps_pps;
681 
682     /**
683      * Pointer to current SPS
684      */
685     sps_t *ps_sps;
686 
687     /**
688      * Pointer to current slice header structure
689      */
690     slice_header_t *ps_slice_hdr;
691 
692     /**
693      * MB's x position within a picture in raster scan in MB units
694      */
695     WORD32 i4_mb_x;
696 
697     /**
698      * MB's y position within a picture in raster scan in MB units
699      */
700 
701     WORD32 i4_mb_y;
702 
703     /**
704      * Current PU structure - set to MB enc_pu_t pointer at the start of MB processing and incremented
705      * for every TU
706      */
707     enc_pu_t *ps_pu;
708 
709     /**
710      * Pointer to frame level enc_pu_t for the current frame being parsed
711      * where MVs and Intra pred modes will be updated
712      */
713     enc_pu_t *ps_pic_pu;
714 
715     /**
716      *  Pointer to hold num PUs each MB in a picture
717      */
718     UWORD32 *pu4_mb_pu_cnt;
719 
720     /** PU Index map per MB. The indices in this map are w.r.t picture pu array and not
721      * w.r.t MB pu array.
722      * This will be used during mv prediction and since neighbors will have different MB pu map
723      * it will be easier if they all have indices w.r.t picture level PU array rather than MB level
724      * PU array.
725      * pu1_pic_pu_map is map w.r.t MB's enc_pu_t array
726      */
727     UWORD32 *pu4_pic_pu_idx_map;
728 
729     /**
730       * Pointer to pu_map for the current frame being parsed
731       * where MVs and Intra pred modes will be updated
732       */
733      UWORD8 *pu1_pic_pu_map;
734 
735      /**
736       *  PU count in current MB
737       */
738      WORD32 i4_mb_pu_cnt;
739 
740      /**
741       *  PU count in current MB
742       */
743      WORD32 i4_mb_start_pu_idx;
744 
745      /**
746       *  Top availability for current MB level
747       */
748      UWORD8 u1_top_mb_avail;
749 
750      /**
751       *  Top right availability for current MB level
752       */
753      UWORD8 u1_top_rt_mb_avail;
754      /**
755       *  Top left availability for current MB level
756       */
757      UWORD8 u1_top_lt_mb_avail;
758      /**
759       *  left availability for current MB level
760       */
761      UWORD8 u1_left_mb_avail;
762 
763 }mv_ctxt_t;
764 
765 typedef struct
766 {
767     /**
768      * MB's x position within a picture in raster scan in MB units
769      */
770     WORD32 i4_mb_x;
771 
772     /**
773      * MB's y position within a picture in raster scan in MB units
774      */
775     WORD32 i4_mb_y;
776 
777     /**
778      * MB's x position within a Slice in raster scan in MB units
779      */
780     WORD32 i4_mb_slice_x;
781 
782     /**
783      * MB's y position within a Slice in raster scan in MB units
784      */
785     WORD32 i4_mb_slice_y;
786 
787     /**
788      * Vertical strength, Two bits per edge.
789      * Stored in format. BS[15] | BS[14] | .. |BS[0]
790      */
791     UWORD32 *pu4_pic_vert_bs;
792 
793     /**
794      * Boundary strength, Two bits per edge.
795      * Stored in format. BS[15] | BS[14] | .. |BS[0]
796      */
797     UWORD32 *pu4_pic_horz_bs;
798 
799     /**
800      *  Qp array stored for each mb
801      */
802     UWORD8  *pu1_pic_qp;
803 
804 }bs_ctxt_t;
805 
806 typedef struct
807 {
808     /**
809      * MB's x position within a picture in raster scan in MB units
810      */
811     WORD32 i4_mb_x;
812 
813     /**
814      * MB's y position within a picture in raster scan in MB units
815      */
816     WORD32 i4_mb_y;
817 
818     /**
819      * structure that contains BS and QP frame level arrays
820      */
821     bs_ctxt_t s_bs_ctxt;
822 
823     /**
824      * Pointer to 0th luma pixel in current pic
825      */
826     UWORD8 *pu1_cur_pic_luma;
827 
828     /**
829      * Pointer to 0th chroma pixel in current pic
830      */
831     UWORD8 *pu1_cur_pic_chroma;
832 
833     /**
834      *  Points to the array of slice indices which is used to identify the slice
835      *  to which each MB in a frame belongs.
836      */
837     UWORD8 *pu1_slice_idx;
838 
839 }deblk_ctxt_t;
840 
841 
842 /**
843  ******************************************************************************
844  *  @brief      Structure to hold data and flags for 'n' mb processing for
845  *                deblocking , padding and half pel generation.
846  ******************************************************************************
847  */
848 typedef struct
849 {
850     /**
851      * MB's x position last processed + 1
852      */
853     WORD32 i4_mb_x;
854 
855     /**
856      * MB's y position ,current processing.
857      */
858     WORD32 i4_mb_y;
859 
860     /**
861      * Number of MBs processed in a stretch
862      */
863     WORD32 i4_n_mbs;
864 
865 }n_mb_process_ctxt_t;
866 
867 
868 /**
869 ******************************************************************************
870  *  @brief      Structure to hold coefficient info for a 4x4 subblock.
871  *  The following can be used to type-cast coefficient data that is stored
872  *  per subblock. Note that though i2_level is shown as an array that
873  *  holds 16 coefficients, only the first few entries will be valid. Next
874  *  subblocks data starts after the valid number of coefficients. Number
875  *  of non-zero coefficients will be derived using number of non-zero bits
876  *  in sig coeff map
877 ******************************************************************************
878  */
879 typedef struct
880 {
881     /**
882      * significant coefficient map and nnz are packed in
883      * to msb (2 bytes) and lsb (2 bytes) respectively
884      */
885     WORD32  i4_sig_map_nnz;
886 
887     /**
888      * array of non zero residue coefficients
889      */
890     WORD16  ai2_residue[16];
891 
892 }tu_sblk_coeff_data_t;
893 
894 /**
895 ******************************************************************************
896  *  @brief      Structure contains few common state variables such as MB indices,
897  *  current SPS, PPS etc which are to be used in the entropy thread. By keeping
898  *  it a different structure it is being explicitly signaled that these
899  * variables are specific to entropy threads context and other threads should
900  * not update these elements
901 ******************************************************************************
902  */
903 typedef struct
904 {
905     /**
906      * Pointer to the cabac context
907      */
908     cabac_ctxt_t *ps_cabac;
909 
910     /**
911      * start of frame / start of slice flag
912      */
913     WORD32 i4_sof;
914 
915     /**
916      * end of frame / end of slice flag
917      */
918     WORD32 i4_eof;
919 
920     /**
921      * generate header upon request
922      */
923     WORD32 i4_gen_header;
924 
925     /**
926      *  seq_parameter_set_id
927      */
928     UWORD32 u4_sps_id;
929 
930     /**
931      * Pointer to base of sequence parameter set structure array
932      */
933     sps_t *ps_sps_base;
934 
935     /**
936      *  pic_parameter_set_id
937      */
938     UWORD32 u4_pps_id;
939 
940     /**
941      * Pointer to base of Picture parameter set structure array
942      */
943     pps_t *ps_pps_base;
944 
945     /**
946      * Current slice idx
947      */
948     WORD32 i4_cur_slice_idx;
949 
950     /**
951      * Points to the array of slice indices which is used to identify the independent slice
952      * to which each MB in a frame belongs.
953      */
954     UWORD8 *pu1_slice_idx;
955 
956     /**
957      * Pointer to base of slice header structure array
958      */
959     slice_header_t *ps_slice_hdr_base;
960 
961     /**
962      * entropy status
963      */
964     UWORD8  *pu1_entropy_map;
965 
966     /**
967      * MB's x position within a picture in raster scan in MB units
968      */
969     WORD32 i4_mb_x;
970 
971     /**
972      * MB's y position within a picture in raster scan in MB units
973      */
974     WORD32 i4_mb_y;
975 
976     /**
977      * MB start address
978      */
979     WORD32 i4_mb_cnt;
980 
981     /**
982      * MB start address
983      */
984     WORD32 i4_mb_start_add;
985 
986     /**
987      * MB end address
988      */
989     WORD32 i4_mb_end_add;
990 
991     /**
992      * Input width in mbs
993      */
994     WORD32 i4_wd_mbs;
995 
996     /**
997      * Input height in mbs
998      */
999     WORD32 i4_ht_mbs;
1000 
1001     /**
1002      * Bitstream structure
1003      */
1004     bitstrm_t *ps_bitstrm;
1005 
1006     /**
1007      *  transform_8x8_mode_flag
1008      */
1009     WORD8 i1_transform_8x8_mode_flag;
1010 
1011     /**
1012      *  entropy_coding_mode_flag
1013      */
1014     WORD8 u1_entropy_coding_mode_flag;
1015 
1016     /**
1017      * Pointer to the top row nnz for luma
1018      */
1019     UWORD8 (*pu1_top_nnz_luma)[4];
1020 
1021     /**
1022      * left nnz for luma
1023      */
1024     UWORD32 u4_left_nnz_luma;
1025 
1026     /**
1027      * Pointer to zero runs before for the mb
1028      */
1029     UWORD8  au1_zero_run[16];
1030 
1031     /**
1032      * Pointer to the top row nnz for chroma
1033      */
1034     UWORD8 (*pu1_top_nnz_cbcr)[4];
1035 
1036     /**
1037      * left nnz for chroma
1038      */
1039     UWORD8 u4_left_nnz_cbcr;
1040 
1041     /**
1042      * Pointer frame level mb subblock coeff data
1043      */
1044     void *pv_pic_mb_coeff_data;
1045 
1046     /**
1047      * Pointer to mb subblock coeff data and number of subblocks and scan idx
1048      * Incremented each time a coded subblock is processed
1049      */
1050     void *pv_mb_coeff_data;
1051 
1052     /**
1053      * Pointer frame level mb header data
1054      */
1055     void *pv_pic_mb_header_data;
1056 
1057     /**
1058      * Pointer to mb header data and
1059      * incremented each time a coded mb is encoded
1060      */
1061     void *pv_mb_header_data;
1062 
1063     /**
1064      * Error code during parse stage
1065      */
1066     IH264E_ERROR_T i4_error_code;
1067 
1068     /**
1069      * Void pointer to job context
1070      */
1071     void *pv_proc_jobq, *pv_entropy_jobq;
1072 
1073     /**
1074      * Flag to signal end of frame
1075      */
1076     WORD32 i4_end_of_frame;
1077 
1078     /**
1079      * Abs POC count of the frame
1080      */
1081      WORD32 i4_abs_pic_order_cnt;
1082 
1083      /**
1084       * mb skip run
1085       */
1086      WORD32 *pi4_mb_skip_run;
1087 
1088      /**
1089       * Flag to signal end of sequence
1090       */
1091      UWORD32 u4_is_last;
1092 
1093      /**
1094       * Lower 32bits of time-stamp corresponding to the buffer being encoded
1095       */
1096      UWORD32 u4_timestamp_low;
1097 
1098      /**
1099       * Upper 32bits of time-stamp corresponding to the buffer being encoded
1100       */
1101      UWORD32 u4_timestamp_high;
1102 
1103      /**
1104       * Current Picture count - used for synchronization
1105       */
1106      WORD32  i4_pic_cnt;
1107 
1108      /**
1109       * Number of bits consumed by header for I and P mb types
1110       */
1111      UWORD32 u4_header_bits[MAX_MB_TYPE];
1112 
1113      /**
1114       * Number of bits consumed by residue for I and P mb types
1115       */
1116      UWORD32 u4_residue_bits[MAX_MB_TYPE];
1117 
1118 } entropy_ctxt_t;
1119 
1120 /**
1121 ******************************************************************************
1122 *  @brief      macro block info.
1123 ******************************************************************************
1124 */
1125 typedef struct
1126 {
1127     /**
1128      * mb type
1129      */
1130     UWORD16 u2_is_intra;
1131 
1132     /**
1133      * mb type
1134      */
1135     UWORD16 u2_mb_type;
1136 
1137     /**
1138      * csbp
1139      */
1140     UWORD32 u4_csbp;
1141 
1142     /**
1143      * mb distortion
1144      */
1145     WORD32 i4_mb_distortion;
1146 
1147 }mb_info_t;
1148 
1149 /**
1150 ******************************************************************************
1151 *  @brief      structure presenting the neighbor availability of a mb
1152 *  or subblk or any other partition
1153 ******************************************************************************
1154 */
1155 typedef struct
1156 {
1157     /**
1158      * left blk/subblk/partition
1159      */
1160     UWORD8 u1_mb_a;
1161 
1162     /**
1163      * top blk/subblk/partition
1164      */
1165     UWORD8 u1_mb_b;
1166 
1167     /**
1168      * topright blk/subblk/partition
1169      */
1170     UWORD8 u1_mb_c;
1171 
1172     /**
1173      * topleft blk/subblk/partition
1174      */
1175     UWORD8 u1_mb_d;
1176 
1177 }block_neighbors_t;
1178 
1179 /**
1180  ******************************************************************************
1181  *  @brief      MB info  related variables used during NMB processing
1182  ******************************************************************************
1183  */
1184 typedef struct
1185 {
1186     UWORD32 u4_mb_type;
1187     UWORD32 u4_min_sad;
1188     UWORD32 u4_min_sad_reached;
1189     WORD32  i4_mb_cost;
1190     WORD32  i4_mb_distortion;
1191 
1192     enc_pu_mv_t as_skip_mv[4];
1193 
1194     enc_pu_mv_t as_pred_mv[2];
1195 
1196     block_neighbors_t s_ngbr_avbl;
1197 
1198     /*
1199      * Buffer to hold best subpel buffer in each MB of NMB
1200      */
1201     UWORD8 *pu1_best_sub_pel_buf;
1202 
1203     /*
1204      * Stride for subpel buffer
1205      */
1206     UWORD32 u4_bst_spel_buf_strd;
1207 
1208 }mb_info_nmb_t;
1209 
1210 /**
1211  ******************************************************************************
1212  *  @brief      Pixel processing thread context
1213  ******************************************************************************
1214  */
1215 struct _proc_t
1216 {
1217     /**
1218      * entropy context
1219      */
1220     entropy_ctxt_t s_entropy;
1221 
1222     /**
1223      * me context
1224      */
1225     me_ctxt_t s_me_ctxt;
1226 
1227     /**
1228      * Pointer to codec context
1229      */
1230     codec_t *ps_codec;
1231 
1232     /**
1233      * N mb process contest
1234      */
1235     n_mb_process_ctxt_t s_n_mb_ctxt;
1236 
1237     /**
1238      * Source pointer to current MB luma
1239      */
1240     UWORD8 *pu1_src_buf_luma;
1241 
1242     /**
1243      * Source pointer to current MB chroma
1244      */
1245     UWORD8 *pu1_src_buf_chroma;
1246 
1247     /**
1248      * Recon pointer to current MB luma
1249      */
1250     UWORD8 *pu1_rec_buf_luma;
1251 
1252     /**
1253      * Recon pointer to current MB chroma
1254      */
1255     UWORD8 *pu1_rec_buf_chroma;
1256 
1257     /**
1258      * Ref pointer to current MB luma
1259      */
1260     UWORD8 *apu1_ref_buf_luma[MAX_REF_PIC_CNT];
1261 
1262     /**
1263      * Ref pointer to current MB chroma
1264      */
1265     UWORD8 *apu1_ref_buf_chroma[MAX_REF_PIC_CNT];
1266 
1267     /**
1268      * pointer to luma plane of input buffer (base :: mb (0,0))
1269      */
1270     UWORD8 *pu1_src_buf_luma_base;
1271 
1272     /**
1273      * pointer to luma plane of reconstructed buffer (base :: mb (0,0))
1274      */
1275     UWORD8 *pu1_rec_buf_luma_base;
1276 
1277     /**
1278      * pointer to luma plane of ref buffer (base :: mb (0,0))
1279      */
1280     UWORD8 *apu1_ref_buf_luma_base[MAX_REF_PIC_CNT];
1281 
1282     /**
1283      * pointer to  chroma plane of input buffer (base :: mb (0,0))
1284      */
1285     UWORD8 *pu1_src_buf_chroma_base;
1286 
1287     /*
1288      * Buffer for color space conversion of luma
1289      */
1290     UWORD8 *pu1_y_csc_buf;
1291 
1292     /*
1293      * Buffer for color space conversion of luma
1294      */
1295 
1296     UWORD8 *pu1_uv_csc_buf;
1297 
1298     /**
1299      * pointer to  chroma plane of reconstructed buffer (base :: mb (0,0))
1300      */
1301     UWORD8 *pu1_rec_buf_chroma_base;
1302 
1303     /**
1304      * pointer to  chroma plane of reconstructed buffer (base :: mb (0,0))
1305      */
1306     UWORD8 *apu1_ref_buf_chroma_base[MAX_REF_PIC_CNT];
1307 
1308     /**
1309      * Pointer to ME NMB info
1310      */
1311     mb_info_nmb_t *ps_nmb_info;
1312 
1313     mb_info_nmb_t *ps_cur_mb;
1314 
1315     /**
1316      * source luma stride
1317      */
1318     WORD32 i4_src_strd;
1319 
1320     /**
1321      * source chroma stride
1322      */
1323     WORD32 i4_src_chroma_strd;
1324 
1325     /**
1326      * recon stride & ref stride
1327      * (strides for luma and chroma are the same)
1328      */
1329     WORD32 i4_rec_strd;
1330 
1331     /**
1332      * Offset for half pel x plane from the pic buf
1333      */
1334     UWORD32 u4_half_x_offset;
1335 
1336     /**
1337      * Offset for half pel y plane from half x plane
1338      */
1339     UWORD32 u4_half_y_offset;
1340 
1341     /**
1342      * Offset for half pel xy plane from half y plane
1343      */
1344     UWORD32 u4_half_xy_offset;
1345 
1346     /**
1347      * pred buffer pointer (temp buffer 1)
1348      */
1349     UWORD8 *pu1_pred_mb;
1350 
1351     /**
1352      * pred buffer pointer (prediction buffer for intra 16x16
1353      */
1354     UWORD8 *pu1_pred_mb_intra_16x16;
1355 
1356     /**
1357      * pred buffer pointer (prediction buffer for intra 16x16_plane
1358      */
1359     UWORD8 *pu1_pred_mb_intra_16x16_plane;
1360 
1361     /**
1362      * pred buffer pointer (prediction buffer for intra chroma
1363      */
1364     UWORD8 *pu1_pred_mb_intra_chroma;
1365 
1366     /**
1367      * pred buffer pointer (prediction buffer for intra chroma plane
1368      */
1369     UWORD8 *pu1_pred_mb_intra_chroma_plane;
1370 
1371     /**
1372      * temp. reference buffer ptr for intra 4x4 when rdopt is on
1373      */
1374     UWORD8 *pu1_ref_mb_intra_4x4;
1375 
1376     /**
1377      * prediction buffer stride
1378      */
1379     WORD32 i4_pred_strd;
1380 
1381     /**
1382      * transform buffer pointer (temp buffer 2)
1383      */
1384     WORD16 *pi2_res_buf;
1385 
1386     /**
1387      * temp. transform buffer ptr for intra 4x4 when rdopt is on
1388      */
1389     WORD16 *pi2_res_buf_intra_4x4;
1390 
1391     /**
1392      * transform buffer stride
1393      */
1394     WORD32 i4_res_strd;
1395 
1396     /**
1397      * scratch buffer for inverse transform (temp buffer 3)
1398      */
1399     void *pv_scratch_buff;
1400 
1401     /**
1402      * frame num
1403      */
1404     WORD32 i4_frame_num;
1405 
1406     /**
1407      * start address of frame / sub-frame
1408      */
1409     WORD32 i4_frame_strt_add;
1410 
1411     /**
1412      *  IDR pic
1413      */
1414     UWORD32 u4_is_idr;
1415 
1416     /**
1417      *  idr_pic_id
1418      */
1419     UWORD32 u4_idr_pic_id;
1420 
1421     /**
1422      * Input width in mbs
1423      */
1424     WORD32 i4_wd_mbs;
1425 
1426     /**
1427      * Input height in mbs
1428      */
1429     WORD32 i4_ht_mbs;
1430 
1431     /**
1432      *  slice_type
1433      */
1434     WORD32  i4_slice_type;
1435 
1436     /**
1437      * Current slice idx
1438      */
1439     WORD32 i4_cur_slice_idx;
1440 
1441     /**
1442      * MB's x position within a picture in raster scan in MB units
1443      */
1444     WORD32 i4_mb_x;
1445 
1446     /**
1447      * MB's y position within a picture in raster scan in MB units
1448      */
1449     WORD32 i4_mb_y;
1450 
1451     /**
1452      * MB's x position within a Slice in raster scan in MB units
1453      */
1454     WORD32 i4_mb_slice_x;
1455 
1456     /**
1457      * MB's y position within a Slice in raster scan in MB units
1458      */
1459     WORD32 i4_mb_slice_y;
1460 
1461     /**
1462      *  mb type
1463      */
1464     UWORD32 u4_mb_type;
1465 
1466     /**
1467      *  is intra
1468      */
1469     UWORD32 u4_is_intra;
1470 
1471     /**
1472      * mb neighbor availability pointer
1473      */
1474     block_neighbors_t *ps_ngbr_avbl;
1475 
1476     /**
1477      * lambda (lagrange multiplier for cost computation)
1478      */
1479     UWORD32 u4_lambda;
1480 
1481     /**
1482      * mb distortion
1483      */
1484     WORD32 i4_mb_distortion;
1485 
1486     /**
1487      * mb cost
1488      */
1489     WORD32 i4_mb_cost;
1490 
1491     /********************************************************************/
1492     /* i4_ngbr_avbl_mb_16 - ngbr avbl of curr mb                        */
1493     /* i4_ngbr_avbl_sb_8 - ngbr avbl of all 8x8 sub blocks of curr mb   */
1494     /* i4_ngbr_avbl_sb_4 - ngbr avbl of all 4x4 sub blocks of curr mb   */
1495     /* i4_ngbr_avbl_mb_c - chroma ngbr avbl of curr mb                  */
1496     /********************************************************************/
1497     WORD32  i4_ngbr_avbl_16x16_mb;
1498     WORD32  ai4_neighbor_avail_8x8_subblks[4];
1499     UWORD8  au1_ngbr_avbl_4x4_subblks[16];
1500     WORD32  i4_chroma_neighbor_avail_8x8_mb;
1501 
1502     /**
1503      * array to store the mode of mb sub blocks
1504      */
1505     UWORD8  au1_intra_luma_mb_4x4_modes[16];
1506 
1507     /**
1508      * array to store the predicted mode of mb sub blks
1509      */
1510     UWORD8  au1_predicted_intra_luma_mb_4x4_modes[16];
1511 
1512     /**
1513      * macro block intra 16x16 mode
1514      */
1515     UWORD8  u1_l_i16_mode;
1516 
1517     /**
1518      * array to store the mode of the macro block intra 8x8 4 modes
1519      */
1520     UWORD8  au1_intra_luma_mb_8x8_modes[4];
1521 
1522     /**
1523      * intra chroma mb mode
1524      */
1525     UWORD8  u1_c_i8_mode;
1526 
1527     /********************************************************************/
1528     /* array to store pixels from the neighborhood for intra prediction */
1529     /* i16 - 16 left pels + 1 top left pel + 16 top pels = 33 pels      */
1530     /* i8 - 8 lpels + 1 tlpels + 8 tpels + 8 tr pels = 25 pels          */
1531     /* i4 - 4 lpels + 1 tlpels + 4 tpels + 4 tr pels = 13 pels          */
1532     /* ic - 8 left pels + 1 top left pel + 8 top pels )*2               */
1533     /********************************************************************/
1534     UWORD8 au1_ngbr_pels[34];
1535 
1536     /**
1537      * array for 8x8 intra pels filtering (temp buff 4)
1538      */
1539     UWORD8 au1_neighbor_pels_i8x8_unfiltered[25];
1540 
1541     /**
1542      * Number of sub partitons in the inter pred MB
1543      */
1544     UWORD32 u4_num_sub_partitions;
1545 
1546     /**
1547      *  Pointer to hold num PUs each MB in a picture
1548      */
1549     UWORD32 *pu4_mb_pu_cnt;
1550 
1551     /**
1552      * Pointer to the array of structures having motion vectors, size
1553      *  and position of sub partitions
1554      */
1555     enc_pu_t *ps_pu;
1556 
1557     /**
1558      * Pointer to the pu of current co-located MB in list 1
1559      */
1560     enc_pu_t *ps_colpu;
1561 
1562     /**
1563      * predicted motion vector
1564      */
1565     enc_pu_mv_t *ps_skip_mv;
1566 
1567     /**
1568      * predicted motion vector
1569      */
1570     enc_pu_mv_t *ps_pred_mv;
1571 
1572     /**
1573      * top row mb syntax information base
1574      * In normal working scenarios, for a given context set,
1575      * the mb syntax info pointer is identical across all process threads.
1576      * But when the hard bound on slices are enabled, in multi core, frame
1577      * is partitioned in to sections equal to set number of cores and each
1578      * partition is run independently. In this scenario, a ctxt set will alone
1579      * appear to run multiple frames at a time. For this to occur, the common
1580      * pointers across the proc ctxt should disappear.
1581      *
1582      * This is done by allocating MAX_PROCESS_THREADS memory and distributing
1583      * across individual ctxts when byte bnd per slice is enabled.
1584      */
1585     mb_info_t *ps_top_row_mb_syntax_ele_base;
1586 
1587     /**
1588      * top row mb syntax information
1589      */
1590     mb_info_t *ps_top_row_mb_syntax_ele;
1591 
1592     /**
1593      * left mb syntax information
1594      */
1595     mb_info_t s_left_mb_syntax_ele;
1596 
1597     /**
1598      * top left mb syntax information
1599      */
1600     mb_info_t s_top_left_mb_syntax_ele;
1601 
1602     /**
1603      * top left mb syntax information
1604      */
1605 
1606     mb_info_t s_top_left_mb_syntax_ME;
1607 
1608     /**
1609      * left mb motion vector
1610      */
1611     enc_pu_t s_left_mb_pu_ME;
1612 
1613     /**
1614      * top left mb motion vector
1615      */
1616     enc_pu_t s_top_left_mb_pu_ME;
1617 
1618     /**
1619      * mb neighbor availability pointer
1620      */
1621     block_neighbors_t s_ngbr_avbl;
1622 
1623     /**
1624      * In case the macroblock type is intra, the intra modes of all
1625      * partitions for the left mb are stored in the array below
1626      */
1627     UWORD8 au1_left_mb_intra_modes[16];
1628 
1629     /**
1630      * In case the macroblock type is intra, the intra modes of all
1631      * partitions for the top mb are stored in the array below
1632      *
1633      * In normal working scenarios, for a given context set,
1634      * the mb syntax info pointer is identical across all process threads.
1635      * But when the hard bound on slices are enabled, in multi core, frame
1636      * is partitioned in to sections equal to set number of cores and each
1637      * partition is run independently. In this scenario, a ctxt set will alone
1638      * appear to run multiple frames at a time. For this to occur, the common
1639      * pointers across the proc ctxt should disappear.
1640      *
1641      * This is done by allocating MAX_PROCESS_THREADS memory and distributing
1642      * across individual ctxts when byte bnd per slice is enabled.
1643      */
1644     UWORD8 *pu1_top_mb_intra_modes_base;
1645 
1646     /**
1647      * In case the macroblock type is intra, the intra modes of all
1648      * partitions for the top mb are stored in the array below
1649      */
1650     UWORD8 *pu1_top_mb_intra_modes;
1651 
1652     /**
1653      * left mb motion vector
1654      */
1655     enc_pu_t s_left_mb_pu;
1656 
1657     /**
1658      * top left mb motion vector
1659      */
1660     enc_pu_t s_top_left_mb_pu;
1661 
1662     /**
1663      * top row motion vector info
1664      *
1665      * In normal working scenarios, for a given context set,
1666      * the top row pu pointer is identical across all process threads.
1667      * But when the hard bound on slices are enabled, in multi core, frame
1668      * is partitioned in to sections equal to set number of cores and each
1669      * partition is run independently. In this scenario, a ctxt set will alone
1670      * appear to run multiple frames at a time. For this to occur, the common
1671      * pointers across the proc ctxt should disappear.
1672      *
1673      * This is done by allocating MAX_PROCESS_THREADS memory and distributing
1674      * across individual ctxts when byte bnd per slice is enabled.
1675      */
1676     enc_pu_t *ps_top_row_pu_base;
1677 
1678     /**
1679      * top row motion vector info
1680      */
1681     enc_pu_t *ps_top_row_pu;
1682 
1683     enc_pu_t *ps_top_row_pu_ME;
1684 
1685     /**
1686      * coded block pattern
1687      */
1688     UWORD32 u4_cbp;
1689 
1690     /**
1691      * csbp
1692      */
1693     UWORD32 u4_csbp;
1694 
1695     /**
1696      *  number of non zero coeffs
1697      */
1698     UWORD32 au4_nnz[5];
1699 
1700     /**
1701      *  number of non zero coeffs for intra 4x4 when rdopt is on
1702      */
1703     UWORD32 au4_nnz_intra_4x4[4];
1704 
1705     /**
1706      * frame qp & mb qp
1707      */
1708     UWORD32 u4_frame_qp, u4_mb_qp;
1709 
1710     /**
1711      * mb qp previous
1712      */
1713     UWORD32 u4_mb_qp_prev;
1714 
1715     /**
1716      * quantization parameters for luma & chroma planes
1717      */
1718     quant_params_t *ps_qp_params[3];
1719 
1720     /**
1721      * Pointer frame level mb subblock coeff data
1722      */
1723     void *pv_pic_mb_coeff_data;
1724 
1725     /**
1726      * Pointer to mb subblock coeff data and number of subblocks and scan idx
1727      * Incremented each time a coded subblock is processed
1728      */
1729     void *pv_mb_coeff_data;
1730 
1731     /**
1732      * Pointer frame level mb header data
1733      */
1734     void *pv_pic_mb_header_data;
1735 
1736     /**
1737      * Pointer to mb header data and
1738      * incremented each time a coded mb is encoded
1739      */
1740     void *pv_mb_header_data;
1741 
1742     /**
1743      * Signal that pic_init is called first time
1744      */
1745     WORD32 i4_first_pic_init;
1746 
1747     /**
1748      * Current MV Bank's buffer ID
1749      */
1750     WORD32 i4_cur_mv_bank_buf_id;
1751 
1752     /**
1753      * Void pointer to job context
1754      */
1755     void *pv_proc_jobq, *pv_entropy_jobq;
1756 
1757     /**
1758      * Number of MBs to be processed in the current Job
1759      */
1760     WORD32 i4_mb_cnt;
1761 
1762     /**
1763      * ID for the current context - Used for debugging
1764      */
1765     WORD32 i4_id;
1766 
1767     /**
1768      * Pointer to current picture buffer structure
1769      */
1770     pic_buf_t *ps_cur_pic;
1771 
1772     /**
1773      * Pointer to current picture's mv buffer structure
1774      */
1775     mv_buf_t *ps_cur_mv_buf;
1776 
1777     /**
1778      * Flag to indicate if ps_proc was initialized at least once in a frame.
1779      * This is needed to handle cases where a core starts to handle format
1780      * conversion jobs directly
1781      */
1782     WORD32 i4_init_done;
1783 
1784     /**
1785      * Process status: one byte per MB
1786      */
1787     UWORD8 *pu1_proc_map;
1788 
1789     /**
1790      * Deblk status: one byte per MB
1791      */
1792     UWORD8 *pu1_deblk_map;
1793 
1794     /**
1795      * Process status: one byte per MB
1796      */
1797     UWORD8 *pu1_me_map;
1798 
1799     /*
1800      * Intra refresh mask.
1801      * Indicates if an Mb is coded in intra mode within the current AIR interval
1802      * NOTE Refreshes after each AIR period
1803      * NOTE The map is shared between process
1804      */
1805     UWORD8 *pu1_is_intra_coded;
1806 
1807     /**
1808      * Disable deblock level (0: Enable completely, 3: Disable completely
1809      */
1810     UWORD32 u4_disable_deblock_level;
1811 
1812     /**
1813      * Pointer to the structure that contains deblock context
1814      */
1815     deblk_ctxt_t s_deblk_ctxt;
1816 
1817     /**
1818      * Points to the array of slice indices which is used to identify the independent
1819      * slice to which each MB in a frame belongs.
1820      */
1821     UWORD8 *pu1_slice_idx;
1822 
1823     /**
1824      * Pointer to base of slice header structure array
1825      */
1826     slice_header_t *ps_slice_hdr_base;
1827 
1828     /**
1829      * Number of mb's to process in one loop
1830      */
1831     WORD32 i4_nmb_ntrpy;
1832 
1833     /**
1834      * Number of mb's to process in one loop
1835      */
1836     UWORD32 u4_nmb_me;
1837 
1838     /**
1839      * Structure for current input buffer
1840      */
1841     inp_buf_t s_inp_buf;
1842 
1843     /**
1844      * api call cnt
1845      */
1846     WORD32 i4_encode_api_call_cnt;
1847 
1848     /**
1849      * Current Picture count - used for synchronization
1850      */
1851     WORD32 i4_pic_cnt;
1852 
1853     /**
1854       * Intermediate buffer for interpred leaf level functions
1855       */
1856     WORD32 ai16_pred1[HP_BUFF_WD * HP_BUFF_HT];
1857 
1858     /**
1859      * Reference picture for the current picture
1860      * TODO: Only 2 reference assumed currently
1861      */
1862     pic_buf_t *aps_ref_pic[MAX_REF_PIC_CNT];
1863 
1864     /**
1865      * Reference MV buff for the current picture
1866      */
1867     mv_buf_t *aps_mv_buf[MAX_REF_PIC_CNT];
1868 
1869     /**
1870      * frame info used by RC
1871      */
1872     frame_info_t s_frame_info;
1873 
1874     /*
1875      * NOTE NOT PERSISTANT INSIDE FUNCTIONS
1876      * Min sad for current MB
1877      * will be populated initially
1878      * Once a sad less than eq to u4_min_sad is reached, the value will be copied to the cariable
1879      */
1880     UWORD32  u4_min_sad;
1881 
1882     /*
1883      * indicates weather we have rached minimum sa or not
1884      */
1885     UWORD32 u4_min_sad_reached;
1886 
1887     /**
1888      * Current error code
1889      */
1890     WORD32 i4_error_code;
1891 
1892     /*
1893      * Enables or disables computation of recon
1894      */
1895     UWORD32 u4_compute_recon;
1896 
1897     /*
1898      * Temporary buffers to be used for subpel computation
1899      */
1900     UWORD8 *apu1_subpel_buffs[SUBPEL_BUFF_CNT];
1901 
1902     /*
1903      * Buffer holding best sub pel values
1904      */
1905     UWORD8 *pu1_best_subpel_buf;
1906 
1907     /*
1908      * Stride for buffer holding best sub pel
1909      */
1910     UWORD32 u4_bst_spel_buf_strd;
1911 
1912 };
1913 
1914 /**
1915  ******************************************************************************
1916  *  @brief      Rate control related variables
1917  ******************************************************************************
1918  */
1919 typedef struct
1920 {
1921     void *pps_rate_control_api;
1922 
1923     void *pps_frame_time;
1924 
1925     void *pps_time_stamp;
1926 
1927     void *pps_pd_frm_rate;
1928 
1929     /**
1930      * frame rate pull down
1931      */
1932     WORD32 pre_encode_skip[MAX_CTXT_SETS];
1933 
1934     /**
1935      * skip frame (cbr)
1936      */
1937     WORD32 post_encode_skip[MAX_CTXT_SETS];
1938 
1939     /**
1940      * rate control type
1941      */
1942     rc_type_e e_rc_type;
1943 
1944     /**
1945      * pic type
1946      */
1947     picture_type_e e_pic_type;
1948 
1949     /**
1950      * intra cnt in previous frame
1951      */
1952     WORD32 num_intra_in_prev_frame;
1953 
1954     /**
1955      * avg activity of prev frame
1956      */
1957     WORD32 i4_avg_activity;
1958 
1959 }rate_control_ctxt_t;
1960 
1961 /**
1962  * Codec context
1963  */
1964 struct _codec_t
1965 {
1966     /**
1967      * Id of current pic (input order)
1968      */
1969     WORD32 i4_poc;
1970 
1971     /**
1972      * Number of encode frame API calls made
1973      * This variable must only be used for context selection [Read only]
1974      */
1975     WORD32 i4_encode_api_call_cnt;
1976 
1977     /**
1978      * Number of pictures encoded
1979      */
1980     WORD32 i4_pic_cnt;
1981 
1982     /**
1983      * Number of threads created
1984      */
1985     WORD32 i4_proc_thread_cnt;
1986 
1987     /**
1988      * Mutex used to keep the control calls thread-safe
1989      */
1990     void *pv_ctl_mutex;
1991 
1992     /**
1993      * Current active config parameters
1994      */
1995     cfg_params_t s_cfg;
1996 
1997     /**
1998      * Array containing the config parameter sets
1999      */
2000     cfg_params_t as_cfg[MAX_ACTIVE_CONFIG_PARAMS];
2001 
2002     /**
2003      * Color format used by encoder internally
2004      */
2005     IV_COLOR_FORMAT_T e_codec_color_format;
2006 
2007     /**
2008      * recon stride
2009      * (strides for luma and chroma are the same)
2010      */
2011     WORD32 i4_rec_strd;
2012 
2013     /**
2014      * Flag to enable/disable deblocking of a frame
2015      */
2016     WORD32 i4_disable_deblk_pic;
2017 
2018     /**
2019      * Number of continuous frames where deblocking was disabled
2020      */
2021     WORD32 i4_disable_deblk_pic_cnt;
2022 
2023     /**
2024      * frame type
2025      */
2026     PIC_TYPE_T pic_type;
2027 
2028     /**
2029      * frame qp
2030      */
2031     UWORD32 u4_frame_qp;
2032 
2033     /**
2034      * frame num
2035      */
2036     WORD32 i4_frame_num;
2037 
2038     /**
2039      *  slice_type
2040      */
2041     WORD32  i4_slice_type;
2042 
2043     /*
2044      * Force current frame to specific type
2045      */
2046     IV_PICTURE_CODING_TYPE_T force_curr_frame_type;
2047 
2048     /**
2049      *  IDR pic
2050      */
2051     UWORD32 u4_is_idr;
2052 
2053     /**
2054      *  idr_pic_id
2055      */
2056     WORD32 i4_idr_pic_id;
2057 
2058     /**
2059      * Flush mode
2060      */
2061     WORD32 i4_flush_mode;
2062 
2063     /**
2064      * Encode header mode
2065      */
2066     WORD32 i4_header_mode;
2067 
2068     /**
2069      * Flag to indicate if header has already
2070      * been generated when i4_api_call_cnt 0
2071      */
2072     UWORD32 u4_header_generated;
2073 
2074     /**
2075      * Encode generate header
2076      */
2077     WORD32 i4_gen_header;
2078 
2079     /**
2080      * To signal successful completion of init
2081      */
2082     WORD32 i4_init_done;
2083 
2084     /**
2085      * To signal that at least one picture was decoded
2086      */
2087     WORD32 i4_first_pic_done;
2088 
2089     /**
2090      * Reset flag - Codec is reset if this flag is set
2091      */
2092     WORD32 i4_reset_flag;
2093 
2094     /**
2095      * Current error code
2096      */
2097     WORD32 i4_error_code;
2098 
2099     /**
2100      * threshold residue
2101      */
2102     WORD32 u4_thres_resi;
2103 
2104     /**
2105      * disable intra inter gating
2106      */
2107     UWORD32 u4_inter_gate;
2108 
2109     /**
2110      * Holds mem records passed during init.
2111      * This will be used to return the mem records during retrieve call
2112      */
2113     iv_mem_rec_t *ps_mem_rec_backup;
2114 
2115     /**
2116      * Flag to determine if the entropy thread is active
2117      */
2118     volatile UWORD32 au4_entropy_thread_active[MAX_CTXT_SETS];
2119 
2120     /**
2121      * Mutex used to keep the entropy calls thread-safe
2122      */
2123     void *pv_entropy_mutex;
2124 
2125     /**
2126      * Job queue buffer base
2127      */
2128     void *pv_proc_jobq_buf, *pv_entropy_jobq_buf;
2129 
2130     /**
2131      * Job Queue mem tab size
2132      */
2133     WORD32 i4_proc_jobq_buf_size, i4_entropy_jobq_buf_size;
2134 
2135     /**
2136      * Memory for MV Bank buffer manager
2137      */
2138     void *pv_mv_buf_mgr_base;
2139 
2140     /**
2141      * MV Bank buffer manager
2142      */
2143     void *pv_mv_buf_mgr;
2144 
2145     /**
2146      * Pointer to MV Buf structure array
2147      */
2148     void *ps_mv_buf;
2149 
2150     /**
2151      * Base address for Motion Vector bank buffer
2152      */
2153     void *pv_mv_bank_buf_base;
2154 
2155     /**
2156      * MV Bank size allocated
2157      */
2158     WORD32 i4_total_mv_bank_size;
2159 
2160     /**
2161      * Memory for Picture buffer manager for reference pictures
2162      */
2163     void *pv_ref_buf_mgr_base;
2164 
2165     /**
2166      * Picture buffer manager for reference pictures
2167      */
2168     void *pv_ref_buf_mgr;
2169 
2170     /**
2171      * Number of reference buffers added to the buffer manager
2172      */
2173     WORD32 i4_ref_buf_cnt;
2174 
2175     /**
2176      * Pointer to Pic Buf structure array
2177      */
2178     void *ps_pic_buf;
2179 
2180     /**
2181      * Base address for Picture buffer
2182      */
2183     void *pv_pic_buf_base;
2184 
2185     /**
2186      * Total pic buffer size allocated
2187      */
2188     WORD32 i4_total_pic_buf_size;
2189 
2190     /**
2191      * Memory for Buffer manager for output buffers
2192      */
2193      void *pv_out_buf_mgr_base;
2194 
2195     /**
2196      * Buffer manager for output buffers
2197      */
2198      void *pv_out_buf_mgr;
2199 
2200     /**
2201      * Current output buffer's buffer ID
2202      */
2203     WORD32 i4_out_buf_id;
2204 
2205     /**
2206      * Number of output buffers added to the buffer manager
2207      */
2208     WORD32 i4_out_buf_cnt;
2209 
2210     /**
2211      * Memory for Picture buffer manager for input buffers
2212      */
2213      void *pv_inp_buf_mgr_base;
2214 
2215     /**
2216      * Picture buffer manager for input buffers
2217      */
2218      void *pv_inp_buf_mgr;
2219 
2220     /**
2221      * Current input buffer's buffer ID
2222      */
2223     WORD32 i4_inp_buf_id;
2224 
2225     /**
2226      * Number of input buffers added to the buffer manager
2227      */
2228     WORD32 i4_inp_buf_cnt;
2229 
2230     /**
2231      * Current input buffer
2232      */
2233     pic_buf_t *ps_inp_buf;
2234 
2235     /**
2236      * Pointer to dpb manager structure
2237      */
2238     void *pv_dpb_mgr;
2239 
2240     /**
2241      * Pointer to base of Sequence parameter set structure array
2242      */
2243     sps_t *ps_sps_base;
2244 
2245     /**
2246      * Pointer to base of Picture parameter set structure array
2247      */
2248     pps_t *ps_pps_base;
2249 
2250     /**
2251      *  seq_parameter_set_id
2252      */
2253     WORD32 i4_sps_id;
2254 
2255     /**
2256      *  pic_parameter_set_id
2257      */
2258     WORD32 i4_pps_id;
2259 
2260     /**
2261      * Pointer to base of slice header structure array
2262      */
2263     slice_header_t *ps_slice_hdr_base;
2264 
2265     /**
2266      * packed residue coeff data size for 1 row of mbs
2267      */
2268     UWORD32 u4_size_coeff_data;
2269 
2270     /**
2271      * packed header data size for 1 row of mbs
2272      */
2273     UWORD32 u4_size_header_data;
2274 
2275     /**
2276      * Processing context - One for each processing thread
2277      * Create two sets, each set used for alternate frames
2278      */
2279     process_ctxt_t as_process[MAX_PROCESS_CTXT];
2280 
2281     /**
2282      * Thread handle for each of the processing threads
2283      */
2284     void *apv_proc_thread_handle[MAX_PROCESS_THREADS];
2285 
2286     /**
2287      * Thread created flag for each of the processing threads
2288      */
2289     WORD32 ai4_process_thread_created[MAX_PROCESS_THREADS];
2290 
2291     /**
2292      * Void pointer to process job context
2293      */
2294     void *pv_proc_jobq, *pv_entropy_jobq;
2295 
2296     /**
2297      * Number of MBs processed together for better instruction cache handling
2298      */
2299     WORD32 i4_proc_nmb;
2300 
2301     /**
2302      * Previous POC lsb
2303      */
2304     WORD32 i4_prev_poc_lsb;
2305 
2306     /**
2307      * Previous POC msb
2308      */
2309     WORD32 i4_prev_poc_msb;
2310 
2311     /**
2312      * Max POC lsb that has arrived till now
2313      */
2314     WORD32 i4_max_prev_poc_lsb;
2315 
2316     /**
2317      * Context for format conversion
2318      */
2319     fmt_conv_t s_fmt_conv;
2320 
2321     /**
2322      * Absolute pic order count
2323      */
2324     WORD32 i4_abs_pic_order_cnt;
2325 
2326     /**
2327      *  Pic order count of lsb
2328      */
2329     WORD32 i4_pic_order_cnt_lsb;
2330 
2331     /**
2332      * Array giving current picture being processed in each context set
2333      */
2334     WORD32 ai4_pic_cnt[MAX_CTXT_SETS];
2335 
2336     /*
2337      * Min sad to search for
2338      */
2339     UWORD32 u4_min_sad;
2340 
2341     /**
2342      * Reference picture set
2343      */
2344     ref_set_t as_ref_set[MAX_DPB_SIZE + MAX_CTXT_SETS];
2345 
2346 
2347     /*
2348      * Air pic cnt
2349      * Contains the number of pictures that have been encoded with air
2350      * This value is moudulo air refresh period
2351      */
2352     WORD32 i4_air_pic_cnt;
2353 
2354     /*
2355      * Intra refresh map
2356      * Stores the frames at which intra refresh should occur for a MB
2357      */
2358     UWORD16 *pu2_intr_rfrsh_map;
2359 
2360     /*
2361      * Indicates if the current frame is used as a reference frame
2362      */
2363     UWORD32 u4_is_curr_frm_ref;
2364 
2365     /*
2366      * Indicates if there can be non reference frames in the stream
2367      */
2368     WORD32 i4_non_ref_frames_in_stream;
2369 
2370     /*
2371      * Memory for color space conversion for luma plane
2372      */
2373     UWORD8 *pu1_y_csc_buf_base;
2374 
2375     /*
2376      * Memory for color space conversion foe chroma plane
2377      */
2378     UWORD8 *pu1_uv_csc_buf_base;
2379 
2380     /**
2381      * Function pointers for intra pred leaf level functions luma
2382      */
2383     pf_intra_pred apf_intra_pred_16_l[MAX_I16x16];
2384     pf_intra_pred apf_intra_pred_8_l[MAX_I8x8];
2385     pf_intra_pred apf_intra_pred_4_l[MAX_I4x4];
2386 
2387     /**
2388      * Function pointers for intra pred leaf level functions chroma
2389      */
2390     pf_intra_pred apf_intra_pred_c[MAX_CH_I8x8];
2391 
2392     /**
2393      * luma core coding function pointer
2394      */
2395     UWORD8 (*luma_energy_compaction[4])(process_ctxt_t *ps_proc);
2396 
2397     /**
2398      * chroma core coding function pointer
2399      */
2400     UWORD8 (*chroma_energy_compaction[2])(process_ctxt_t *ps_proc);
2401 
2402     /**
2403      * forward transform for intra blk of mb type 16x16
2404      */
2405     ih264_luma_16x16_resi_trans_dctrans_quant_ft *pf_resi_trans_dctrans_quant_16x16;
2406 
2407     /**
2408      * inverse transform for intra blk of mb type 16x16
2409      */
2410     ih264_luma_16x16_idctrans_iquant_itrans_recon_ft *pf_idctrans_iquant_itrans_recon_16x16;
2411 
2412     /**
2413      * forward transform for 4x4 blk luma
2414      */
2415     ih264_resi_trans_quant_ft *pf_resi_trans_quant_4x4;
2416 
2417     /**
2418      * forward transform for 4x4 blk luma
2419      */
2420     ih264_resi_trans_quant_ft *pf_resi_trans_quant_chroma_4x4;
2421 
2422     /*
2423      * hadamard transform and quant for a 4x4 block
2424      */
2425     ih264_hadamard_quant_ft *pf_hadamard_quant_4x4;
2426 
2427     /*
2428      *  hadamard transform and quant for a 4x4 block
2429      */
2430     ih264_hadamard_quant_ft *pf_hadamard_quant_2x2_uv;
2431 
2432     /**
2433      * inverse transform for 4x4 blk
2434      */
2435     ih264_iquant_itrans_recon_ft *pf_iquant_itrans_recon_4x4;
2436 
2437     /**
2438      * inverse transform for chroma 4x4 blk
2439      */
2440     ih264_iquant_itrans_recon_chroma_ft *pf_iquant_itrans_recon_chroma_4x4;
2441 
2442     /**
2443      * inverse transform for 4x4 blk with only single dc coeff
2444      */
2445     ih264_iquant_itrans_recon_ft *pf_iquant_itrans_recon_4x4_dc;
2446 
2447     /**
2448      * inverse transform for chroma 4x4 blk with only single dc coeff
2449      */
2450     ih264_iquant_itrans_recon_chroma_ft *pf_iquant_itrans_recon_chroma_4x4_dc;
2451 
2452     /*
2453      * Inverse hadamard transform and iquant for a 4x4 block
2454      */
2455     ih264_ihadamard_scaling_ft *pf_ihadamard_scaling_4x4;
2456 
2457     /*
2458      * Inverse hadamard transform and iquant for a 4x4 block
2459      */
2460     ih264_ihadamard_scaling_ft *pf_ihadamard_scaling_2x2_uv;
2461 
2462     /*
2463      * Function for interleave copy*
2464      */
2465     ih264_interleave_copy_ft *pf_interleave_copy;
2466 
2467     /**
2468      * forward transform for 8x8 blk
2469      */
2470     ih264_resi_trans_quant_ft *pf_resi_trans_quant_8x8;
2471 
2472     /**
2473      * inverse transform for 8x8 blk
2474      */
2475     /**
2476      * inverse transform for 4x4 blk
2477      */
2478     ih264_iquant_itrans_recon_ft *pf_iquant_itrans_recon_8x8;
2479 
2480     /**
2481      * forward transform for chroma MB
2482      */
2483     ih264_chroma_8x8_resi_trans_dctrans_quant_ft *pf_resi_trans_dctrans_quant_8x8_chroma;
2484 
2485     /**
2486      * inverse transform for chroma MB
2487      */
2488     ih264_idctrans_iquant_itrans_recon_ft *pf_idctrans_iquant_itrans_recon_8x8_chroma;
2489 
2490     /**
2491      * deblock vertical luma edge with blocking strength 4
2492      */
2493     ih264_deblk_edge_bs4_ft *pf_deblk_luma_vert_bs4;
2494 
2495     /**
2496      * deblock vertical chroma edge with blocking strength 4
2497      */
2498     ih264_deblk_chroma_edge_bs4_ft *pf_deblk_chroma_vert_bs4;
2499 
2500     /**
2501      * deblock vertical luma edge with blocking strength less than 4
2502      */
2503     ih264_deblk_edge_bslt4_ft *pf_deblk_luma_vert_bslt4;
2504 
2505     /**
2506      * deblock vertical chroma edge with blocking strength less than 4
2507      */
2508     ih264_deblk_chroma_edge_bslt4_ft *pf_deblk_chroma_vert_bslt4;
2509 
2510     /**
2511      * deblock horizontal luma edge with blocking strength 4
2512      */
2513     ih264_deblk_edge_bs4_ft *pf_deblk_luma_horz_bs4;
2514 
2515     /**
2516      * deblock horizontal chroma edge with blocking strength 4
2517      */
2518     ih264_deblk_chroma_edge_bs4_ft *pf_deblk_chroma_horz_bs4;
2519 
2520     /**
2521      * deblock horizontal luma edge with blocking strength less than 4
2522      */
2523     ih264_deblk_edge_bslt4_ft *pf_deblk_luma_horz_bslt4;
2524 
2525     /**
2526      * deblock horizontal chroma edge with blocking strength less than 4
2527      */
2528     ih264_deblk_chroma_edge_bslt4_ft *pf_deblk_chroma_horz_bslt4;
2529 
2530 
2531     /**
2532      * functions for padding
2533      */
2534     pf_pad pf_pad_top;
2535     pf_pad pf_pad_bottom;
2536     pf_pad pf_pad_left_luma;
2537     pf_pad pf_pad_left_chroma;
2538     pf_pad pf_pad_right_luma;
2539     pf_pad pf_pad_right_chroma;
2540 
2541     /**
2542      * Inter pred leaf level functions
2543      */
2544     ih264_inter_pred_luma_ft    *pf_inter_pred_luma_copy;
2545     ih264_inter_pred_luma_ft    *pf_inter_pred_luma_horz;
2546     ih264_inter_pred_luma_ft    *pf_inter_pred_luma_vert;
2547     pf_inter_pred_luma_bilinear  pf_inter_pred_luma_bilinear;
2548     ih264_inter_pred_chroma_ft  *pf_inter_pred_chroma;
2549 
2550     /**
2551      * fn ptrs for compute sad routines
2552      */
2553     ime_compute_sad_ft *apf_compute_sad_16x16[2];
2554     ime_compute_sad_ft *pf_compute_sad_16x8;
2555 
2556 
2557     /**
2558      * Function pointer for computing ME
2559      * 1 for PSLICE and 1 for BSLICE
2560      */
2561     ih264e_compute_me_ft *apf_compute_me[2];
2562 
2563     /**
2564      * Function pointers for computing SKIP parameters
2565      */
2566     ih264e_skip_params_ft *apf_find_skip_params_me[2];
2567 
2568     /**
2569      * fn ptrs for memory handling operations
2570      */
2571     pf_memcpy pf_mem_cpy;
2572     pf_memset pf_mem_set;
2573     pf_memcpy_mul8 pf_mem_cpy_mul8;
2574     pf_memset_mul8 pf_mem_set_mul8;
2575 
2576     /**
2577      * intra mode eval -encoder level function
2578      */
2579     pf_evaluate_intra_modes pf_ih264e_evaluate_intra16x16_modes;
2580     pf_evaluate_intra_modes pf_ih264e_evaluate_intra_chroma_modes;
2581     pf_evaluate_intra_4x4_modes pf_ih264e_evaluate_intra_4x4_modes;
2582 
2583     /* Half pel generation function - encoder level
2584      *
2585      */
2586     pf_sixtapfilter_horz pf_ih264e_sixtapfilter_horz;
2587     pf_sixtap_filter_2dvh_vert pf_ih264e_sixtap_filter_2dvh_vert;
2588 
2589     /**
2590      * color space conversion form YUV 420P to YUV 420Sp
2591      */
2592     pf_fmt_conv_420p_to_420sp pf_ih264e_conv_420p_to_420sp;
2593 
2594 
2595     /**
2596      * color space conversion form YUV 420P to YUV 420Sp
2597      */
2598     pf_fmt_conv_422ile_to_420sp pf_ih264e_fmt_conv_422i_to_420sp;
2599 
2600     /**
2601      * write mb layer for a given slice I, P, B
2602      */
2603     IH264E_ERROR_T (*pf_write_mb_syntax_layer[2][3]) ( entropy_ctxt_t *ps_ent_ctxt );
2604 
2605     /**
2606      * Output buffer
2607      */
2608     out_buf_t as_out_buf[MAX_CTXT_SETS];
2609 
2610     /**
2611      * recon buffer
2612      */
2613     rec_buf_t as_rec_buf[MAX_CTXT_SETS];
2614 
2615     /**
2616      * rate control context
2617      */
2618     rate_control_ctxt_t s_rate_control;
2619 
2620     /**
2621      * VUI structure
2622      */
2623     vui_t s_vui;
2624 
2625     /**
2626      * input buffer queue
2627      */
2628     inp_buf_t as_inp_list[MAX_NUM_BFRAMES];
2629 
2630     /**
2631      * Flag to indicate if any IDR requests are pending
2632      */
2633     WORD32 i4_pending_idr_flag;
2634 
2635     /*
2636     *Flag to indicate if we have recived the last input frame
2637     */
2638     WORD32 i4_last_inp_buff_received;
2639 
2640 };
2641 
2642 #endif /* IH264E_STRUCTS_H_ */
2643