1/******************************************************************************
2*
3* Copyright (C) 2012 Ittiam Systems Pvt Ltd, Bangalore
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/**
19*******************************************************************************
20* @file
21*  ihevc_ilf_padding_frame.c
22*
23* @brief
24*  Does frame level loop filtering (deblocking and SAO) and padding
25*
26* @author
27*  Srinivas T
28*
29* @par List of Functions:
30*   - ihevc_ilf_pad_frame()
31*
32* @remarks
33*  None
34*
35*******************************************************************************
36*/
37
38
39#include <stdio.h>
40#include <stddef.h>
41#include <stdlib.h>
42#include <string.h>
43#include <assert.h>
44
45#include "ihevc_typedefs.h"
46#include "iv.h"
47#include "ivd.h"
48#include "ihevcd_cxa.h"
49#include "ithread.h"
50
51#include "ihevc_defs.h"
52#include "ihevc_debug.h"
53#include "ihevc_defs.h"
54#include "ihevc_structs.h"
55#include "ihevc_macros.h"
56#include "ihevc_platform_macros.h"
57#include "ihevc_cabac_tables.h"
58
59#include "ihevc_error.h"
60#include "ihevc_common_tables.h"
61
62#include "ihevcd_trace.h"
63#include "ihevcd_defs.h"
64#include "ihevcd_function_selector.h"
65#include "ihevcd_structs.h"
66#include "ihevcd_error.h"
67#include "ihevcd_nal.h"
68#include "ihevcd_bitstream.h"
69#include "ihevcd_job_queue.h"
70#include "ihevcd_utils.h"
71
72#include "ihevc_deblk.h"
73#include "ihevc_deblk_tables.h"
74#include "ihevcd_profile.h"
75#include "ihevcd_deblk.h"
76#include "ihevcd_sao.h"
77#include "ihevc_padding.h"
78
79void ihevcd_ilf_pad_frame(deblk_ctxt_t *ps_deblk_ctxt, sao_ctxt_t *ps_sao_ctxt)
80{
81    sps_t *ps_sps;
82    slice_header_t *ps_slice_hdr;
83    codec_t *ps_codec;
84    WORD32 i4_ctb_x, i4_ctb_y;
85    WORD32 ctb_size;
86
87    ps_sps = ps_deblk_ctxt->ps_sps;
88    ps_slice_hdr = ps_deblk_ctxt->ps_slice_hdr;
89    ps_codec = ps_deblk_ctxt->ps_codec;
90    ctb_size = (1 << ps_sps->i1_log2_ctb_size);
91
92    for(i4_ctb_y = 0; i4_ctb_y < ps_sps->i2_pic_ht_in_ctb; i4_ctb_y++)
93    {
94        for(i4_ctb_x = 0; i4_ctb_x < ps_sps->i2_pic_wd_in_ctb; i4_ctb_x++)
95        {
96            WORD32 i4_is_last_ctb_x = 0;
97            WORD32 i4_is_last_ctb_y = 0;
98
99            /*TODO:
100             *  Slice header also has to be updated
101             *  */
102            ps_deblk_ctxt->i4_ctb_x = i4_ctb_x;
103            ps_deblk_ctxt->i4_ctb_y = i4_ctb_y;
104
105            ps_sao_ctxt->i4_ctb_x = i4_ctb_x;
106            ps_sao_ctxt->i4_ctb_y = i4_ctb_y;
107
108            if((0 == ps_slice_hdr->i1_slice_disable_deblocking_filter_flag) &&
109               (0 == ps_codec->i4_disable_deblk_pic))
110            {
111                ihevcd_deblk_ctb(ps_deblk_ctxt, i4_is_last_ctb_x, i4_is_last_ctb_y);
112
113                /* If the last CTB in the row was a complete CTB then deblocking has to be called from remaining pixels, since deblocking
114                 * is applied on a shifted CTB structure
115                 */
116                if(i4_ctb_x == ps_sps->i2_pic_wd_in_ctb - 1)
117                {
118                    WORD32 last_x_pos;
119                    i4_is_last_ctb_x = 1;
120                    i4_is_last_ctb_y = 0;
121
122
123                    last_x_pos = (ps_sps->i2_pic_wd_in_ctb << ps_sps->i1_log2_ctb_size);
124                    if(last_x_pos  ==  ps_sps->i2_pic_width_in_luma_samples)
125                    {
126                        ihevcd_deblk_ctb(ps_deblk_ctxt, i4_is_last_ctb_x, i4_is_last_ctb_y);
127                    }
128                }
129
130
131                /* If the last CTB in the column was a complete CTB then deblocking has to be called from remaining pixels, since deblocking
132                 * is applied on a shifted CTB structure
133                 */
134                if(i4_ctb_y == ps_sps->i2_pic_ht_in_ctb - 1)
135                {
136                    WORD32 last_y_pos;
137                    i4_is_last_ctb_y = 1;
138                    i4_is_last_ctb_x = 0;
139
140                    last_y_pos = (ps_sps->i2_pic_ht_in_ctb << ps_sps->i1_log2_ctb_size);
141                    if(last_y_pos == ps_sps->i2_pic_height_in_luma_samples)
142                    {
143                        ihevcd_deblk_ctb(ps_deblk_ctxt, i4_is_last_ctb_x, i4_is_last_ctb_y);
144                    }
145                }
146            }
147
148            if(ps_slice_hdr->i1_slice_sao_luma_flag || ps_slice_hdr->i1_slice_sao_chroma_flag)
149            {
150                ihevcd_sao_ctb(ps_sao_ctxt);
151            }
152
153            /* Call padding if required */
154            {
155                UWORD8 *pu1_cur_ctb_luma = ps_deblk_ctxt->pu1_cur_pic_luma
156                                + (i4_ctb_x * ctb_size
157                                                + i4_ctb_y * ctb_size
158                                                                * ps_codec->i4_strd);
159                UWORD8 *pu1_cur_ctb_chroma = ps_deblk_ctxt->pu1_cur_pic_chroma
160                                + i4_ctb_x * ctb_size
161                                + (i4_ctb_y * ctb_size * ps_codec->i4_strd / 2);
162
163                if(0 == i4_ctb_x)
164                {
165                    WORD32 pad_ht_luma;
166                    WORD32 pad_ht_chroma;
167
168                    pad_ht_luma = ctb_size;
169                    pad_ht_luma += (ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y ? 8 : 0;
170                    pad_ht_chroma = ctb_size / 2;
171                    pad_ht_chroma += (ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y ? 8 : 0;
172                    /* Pad left after 1st CTB is processed */
173                    ps_codec->s_func_selector.ihevc_pad_left_luma_fptr(pu1_cur_ctb_luma - 8 * ps_codec->i4_strd, ps_codec->i4_strd, pad_ht_luma, PAD_LEFT);
174                    ps_codec->s_func_selector.ihevc_pad_left_chroma_fptr(pu1_cur_ctb_chroma - 8 * ps_codec->i4_strd, ps_codec->i4_strd, pad_ht_chroma, PAD_LEFT);
175                }
176                else if((ps_sps->i2_pic_wd_in_ctb - 1) == i4_ctb_x)
177                {
178                    WORD32 pad_ht_luma;
179                    WORD32 pad_ht_chroma;
180                    WORD32 cols_remaining = ps_sps->i2_pic_width_in_luma_samples - (i4_ctb_x << ps_sps->i1_log2_ctb_size);
181
182                    pad_ht_luma = ctb_size;
183                    pad_ht_luma += (ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y ? 8 : 0;
184                    pad_ht_chroma = ctb_size / 2;
185                    pad_ht_chroma += (ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y ? 8 : 0;
186                    /* Pad right after last CTB in the current row is processed */
187                    ps_codec->s_func_selector.ihevc_pad_right_luma_fptr(pu1_cur_ctb_luma + cols_remaining - 8 * ps_codec->i4_strd, ps_codec->i4_strd, pad_ht_luma, PAD_RIGHT);
188                    ps_codec->s_func_selector.ihevc_pad_right_chroma_fptr(pu1_cur_ctb_chroma + cols_remaining - 8 * ps_codec->i4_strd, ps_codec->i4_strd, pad_ht_chroma, PAD_RIGHT);
189
190
191                    if((ps_sps->i2_pic_ht_in_ctb - 1) == i4_ctb_y)
192                    {
193                        UWORD8 *pu1_buf;
194                        /* Since SAO is shifted by 8x8, chroma padding can not be done till second row is processed */
195                        /* Hence moving top padding to to end of frame, Moving it to second row also results in problems when there is only one row */
196                        /* Pad top after padding left and right for current rows after processing 1st CTB row */
197                        ihevc_pad_top(ps_deblk_ctxt->pu1_cur_pic_luma - PAD_LEFT, ps_codec->i4_strd, ps_sps->i2_pic_width_in_luma_samples + PAD_WD, PAD_TOP);
198                        ihevc_pad_top(ps_deblk_ctxt->pu1_cur_pic_chroma - PAD_LEFT, ps_codec->i4_strd, ps_sps->i2_pic_width_in_luma_samples + PAD_WD, PAD_TOP / 2);
199
200                        pu1_buf = ps_deblk_ctxt->pu1_cur_pic_luma + ps_codec->i4_strd * ps_sps->i2_pic_height_in_luma_samples - PAD_LEFT;
201                        /* Pad top after padding left and right for current rows after processing 1st CTB row */
202                        ihevc_pad_bottom(pu1_buf, ps_codec->i4_strd, ps_sps->i2_pic_width_in_luma_samples + PAD_WD, PAD_BOT);
203
204                        pu1_buf = ps_deblk_ctxt->pu1_cur_pic_chroma + ps_codec->i4_strd * (ps_sps->i2_pic_height_in_luma_samples / 2) - PAD_LEFT;
205                        ihevc_pad_bottom(pu1_buf, ps_codec->i4_strd, ps_sps->i2_pic_width_in_luma_samples + PAD_WD, PAD_BOT / 2);
206                    }
207                }
208            }
209
210
211        }
212    }
213
214}
215