Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 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_encode_header.c |
| 25 | * |
| 26 | * @brief |
| 27 | * This file contains function definitions related to header encoding. |
| 28 | * |
| 29 | * @author |
| 30 | * ittiam |
| 31 | * |
| 32 | * @par List of Functions: |
| 33 | * - ih264e_generate_nal_unit_header() |
| 34 | * - ih264e_generate_sps() |
| 35 | * - ih264e_generate_pps() |
| 36 | * - ih264e_generate_slice_header() |
| 37 | * - ih264e_get_level() |
| 38 | * - ih264e_populate_sps() |
| 39 | * - ih264e_populate_pps() |
| 40 | * - ih264e_populate_slice_header() |
| 41 | * - ih264e_add_filler_nal_unit() |
| 42 | * |
| 43 | * @remarks |
| 44 | * None |
| 45 | * |
| 46 | ******************************************************************************* |
| 47 | */ |
| 48 | |
| 49 | /*****************************************************************************/ |
| 50 | /* File Includes */ |
| 51 | /*****************************************************************************/ |
| 52 | |
| 53 | /* System include files */ |
| 54 | #include <stdio.h> |
| 55 | #include <stddef.h> |
| 56 | #include <stdlib.h> |
| 57 | #include <string.h> |
| 58 | #include <assert.h> |
| 59 | |
| 60 | /* User Include Files */ |
| 61 | #include "ih264_typedefs.h" |
| 62 | #include "iv2.h" |
| 63 | #include "ive2.h" |
| 64 | #include "ih264e.h" |
| 65 | #include "ithread.h" |
| 66 | #include "ih264e_config.h" |
| 67 | #include "ih264e_trace.h" |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 68 | #include "ih264e_error.h" |
| 69 | #include "ih264e_bitstream.h" |
| 70 | #include "ih264_debug.h" |
| 71 | #include "ih264_defs.h" |
| 72 | #include "ime_distortion_metrics.h" |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 73 | #include "ime_defs.h" |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 74 | #include "ime_structs.h" |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 75 | #include "ih264_error.h" |
| 76 | #include "ih264_structs.h" |
| 77 | #include "ih264_trans_quant_itrans_iquant.h" |
| 78 | #include "ih264_inter_pred_filters.h" |
| 79 | #include "ih264_mem_fns.h" |
| 80 | #include "ih264_padding.h" |
| 81 | #include "ih264_intra_pred_filters.h" |
| 82 | #include "ih264_deblk_edge_filters.h" |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 83 | #include "ih264_cabac_tables.h" |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 84 | #include "ih264e_defs.h" |
| 85 | #include "irc_cntrl_param.h" |
| 86 | #include "irc_frame_info_collector.h" |
| 87 | #include "ih264e_rate_control.h" |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 88 | #include "ih264e_cabac_structs.h" |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 89 | #include "ih264e_structs.h" |
| 90 | #include "ih264e_encode_header.h" |
| 91 | #include "ih264_common_tables.h" |
| 92 | #include "ih264_macros.h" |
Harinarayanan K K | d3e18f0 | 2015-06-19 14:44:42 +0530 | [diff] [blame] | 93 | #include "ih264e_utils.h" |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 94 | |
| 95 | |
| 96 | /*****************************************************************************/ |
| 97 | /* Function Definitions */ |
| 98 | /*****************************************************************************/ |
| 99 | |
| 100 | /** |
| 101 | ****************************************************************************** |
| 102 | * |
| 103 | * @brief Generate nal unit header in the stream as per section 7.4.1 |
| 104 | * |
| 105 | * @par Description |
| 106 | * Inserts Nal unit header syntax as per section 7.4.1 |
| 107 | * |
| 108 | * @param[inout] ps_bitstrm |
| 109 | * pointer to bitstream context (handle) |
| 110 | * |
| 111 | * @param[in] nal_unit_type |
| 112 | * nal type to be inserted |
| 113 | * |
| 114 | * @param[in] nal_ref_idc |
| 115 | * nal ref idc to be inserted |
| 116 | * |
| 117 | * @return success or failure error code |
| 118 | * |
| 119 | ****************************************************************************** |
| 120 | */ |
| 121 | static WORD32 ih264e_generate_nal_unit_header(bitstrm_t *ps_bitstrm, |
| 122 | WORD32 nal_unit_type, |
| 123 | WORD32 nal_ref_idc) |
| 124 | { |
| 125 | WORD32 return_status = IH264E_SUCCESS; |
| 126 | |
| 127 | /* sanity checks */ |
| 128 | ASSERT((nal_unit_type > 0) && (nal_unit_type < 32)); |
| 129 | |
| 130 | /* forbidden_zero_bit + nal_ref_idc + nal_unit_type */ |
| 131 | PUT_BITS(ps_bitstrm, |
| 132 | ((nal_ref_idc << 5) + nal_unit_type), |
| 133 | (1+2+5), /*1 forbidden zero bit + 2 nal_ref_idc + 5 nal_unit_type */ |
| 134 | return_status, |
| 135 | "nal_unit_header"); |
| 136 | |
| 137 | return(return_status); |
| 138 | } |
Hamsalekha S | 126d84e | 2015-07-30 16:20:35 +0530 | [diff] [blame] | 139 | /** |
| 140 | ****************************************************************************** |
| 141 | * |
| 142 | * @brief Generates VUI (Video usability information) |
| 143 | * |
| 144 | * @par Description |
| 145 | * This function generates VUI header as per the spec |
| 146 | * |
| 147 | * @param[in] ps_bitstrm |
| 148 | * pointer to bitstream context (handle) |
| 149 | * |
| 150 | * @param[in] ps_vui |
| 151 | * pointer to structure containing VUI data |
| 152 | |
| 153 | * |
| 154 | * @return success or failure error code |
| 155 | * |
| 156 | ****************************************************************************** |
| 157 | */ |
| 158 | WORD32 ih264e_generate_vui(bitstrm_t *ps_bitstrm, vui_t *ps_vui) |
| 159 | { |
| 160 | WORD32 return_status = IH264E_SUCCESS; |
| 161 | |
| 162 | /* aspect_ratio_info_present_flag */ |
| 163 | PUT_BITS(ps_bitstrm, ps_vui->u1_aspect_ratio_info_present_flag, 1, return_status, "aspect_ratio_info_present_flag"); |
| 164 | |
| 165 | /* overscan_info_present_flag */ |
| 166 | PUT_BITS(ps_bitstrm, ps_vui->u1_overscan_info_present_flag, 1, return_status, "overscan_info_present_flag"); |
| 167 | |
| 168 | /* video_signal_type_present_flag */ |
| 169 | PUT_BITS(ps_bitstrm, ps_vui->u1_video_signal_type_present_flag, 1, return_status, "video_signal_type_present_flag"); |
| 170 | |
| 171 | /* chroma_loc_info_present_flag */ |
| 172 | PUT_BITS(ps_bitstrm, ps_vui->u1_chroma_loc_info_present_flag, 1, return_status, "chroma_loc_info_present_flag"); |
| 173 | |
| 174 | /* timing_info_present_flag */ |
| 175 | PUT_BITS(ps_bitstrm, ps_vui->u1_vui_timing_info_present_flag, 1, return_status, "timing_info_present_flag"); |
| 176 | |
| 177 | /* nal_hrd_parameters_present_flag */ |
| 178 | PUT_BITS(ps_bitstrm, ps_vui->u1_nal_hrd_parameters_present_flag, 1, return_status, "nal_hrd_parameters_present_flag"); |
| 179 | |
| 180 | /* vcl_hrd_parameters_present_flag */ |
| 181 | PUT_BITS(ps_bitstrm, ps_vui->u1_vcl_hrd_parameters_present_flag, 1, return_status, "vcl_hrd_parameters_present_flag"); |
| 182 | |
| 183 | /* pic_struct_present_flag */ |
| 184 | PUT_BITS(ps_bitstrm, ps_vui->u1_pic_struct_present_flag, 1, return_status, "pic_struct_present_flag"); |
| 185 | |
| 186 | /* bitstream_restriction_flag */ |
| 187 | PUT_BITS(ps_bitstrm, ps_vui->u1_bitstream_restriction_flag, 1, return_status, "bitstream_restriction_flag"); |
| 188 | |
| 189 | if(ps_vui->u1_bitstream_restriction_flag == 1) |
| 190 | { |
| 191 | /* motion_vectors_over_pic_boundaries_flag */ |
| 192 | PUT_BITS(ps_bitstrm, ps_vui->u1_motion_vectors_over_pic_boundaries_flag, 1, return_status, "motion_vectors_over_pic_boundaries_flag"); |
| 193 | |
| 194 | /* max_bytes_per_pic_denom */ |
| 195 | PUT_BITS_UEV(ps_bitstrm,ps_vui->u1_max_bytes_per_pic_denom,return_status,"max_bytes_per_pic_denom"); |
| 196 | |
| 197 | /* max_bits_per_mb_denom */ |
| 198 | PUT_BITS_UEV(ps_bitstrm,ps_vui->u1_max_bits_per_mb_denom,return_status,"max_bits_per_mb_denom"); |
| 199 | |
| 200 | /* log2_max_mv_length_horizontal */ |
| 201 | PUT_BITS_UEV(ps_bitstrm,ps_vui->u1_log2_max_mv_length_horizontal,return_status,"log2_max_mv_length_horizontal"); |
| 202 | |
| 203 | /* log2_max_mv_length_vertical */ |
| 204 | PUT_BITS_UEV(ps_bitstrm,ps_vui->u1_log2_max_mv_length_vertical,return_status,"log2_max_mv_length_vertical"); |
| 205 | |
| 206 | /* max_num_reorder_frames */ |
| 207 | PUT_BITS_UEV(ps_bitstrm,ps_vui->u1_num_reorder_frames,return_status,"max_num_reorder_frames"); |
| 208 | |
| 209 | /* max_dec_frame_buffering */ |
| 210 | PUT_BITS_UEV(ps_bitstrm,ps_vui->u1_max_dec_frame_buffering,return_status,"max_dec_frame_buffering"); |
| 211 | } |
| 212 | |
| 213 | return return_status; |
| 214 | } |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 215 | |
| 216 | /** |
| 217 | ****************************************************************************** |
| 218 | * |
| 219 | * @brief Generates SPS (Sequence Parameter Set) |
| 220 | * |
| 221 | * @par Description |
| 222 | * This function generates Sequence Parameter Set header as per the spec |
| 223 | * |
| 224 | * @param[in] ps_bitstrm |
| 225 | * pointer to bitstream context (handle) |
| 226 | * |
| 227 | * @param[in] ps_sps |
| 228 | * pointer to structure containing SPS data |
| 229 | * |
Hamsalekha S | 126d84e | 2015-07-30 16:20:35 +0530 | [diff] [blame] | 230 | * @param[in] ps_vui |
| 231 | * pointer to structure containing VUI data |
| 232 | * |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 233 | * @return success or failure error code |
| 234 | * |
| 235 | ****************************************************************************** |
| 236 | */ |
Hamsalekha S | 126d84e | 2015-07-30 16:20:35 +0530 | [diff] [blame] | 237 | WORD32 ih264e_generate_sps(bitstrm_t *ps_bitstrm, sps_t *ps_sps, vui_t *ps_vui) |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 238 | { |
| 239 | WORD32 return_status = IH264E_SUCCESS; |
| 240 | WORD32 i; |
| 241 | WORD8 i1_nal_unit_type = 7; |
| 242 | WORD8 i1_nal_ref_idc = 3; |
| 243 | |
| 244 | /* Insert Start Code */ |
| 245 | return_status |= ih264e_put_nal_start_code_prefix(ps_bitstrm, 1); |
| 246 | |
| 247 | /* Insert Nal Unit Header */ |
| 248 | return_status |= ih264e_generate_nal_unit_header(ps_bitstrm, i1_nal_unit_type, i1_nal_ref_idc); |
| 249 | |
| 250 | /* profile_idc */ |
| 251 | PUT_BITS(ps_bitstrm, ps_sps->u1_profile_idc, 8, return_status, "profile_idc"); |
| 252 | |
| 253 | /* constrained_set_flags */ |
| 254 | PUT_BITS(ps_bitstrm, ps_sps->u1_constraint_set0_flag, 1, return_status, "constrained_set0_flag"); |
| 255 | PUT_BITS(ps_bitstrm, ps_sps->u1_constraint_set1_flag, 1, return_status, "constrained_set1_flag"); |
| 256 | PUT_BITS(ps_bitstrm, ps_sps->u1_constraint_set2_flag, 1, return_status, "constrained_set2_flag"); |
| 257 | PUT_BITS(ps_bitstrm, ps_sps->u1_constraint_set3_flag, 1, return_status, "constrained_set3_flag"); |
| 258 | |
| 259 | /* reserved_zero_four_bits */ |
| 260 | PUT_BITS(ps_bitstrm, 0, 4, return_status, "reserved_zero_four_bits"); |
| 261 | |
| 262 | /* level_idc */ |
| 263 | PUT_BITS(ps_bitstrm, ps_sps->u1_level_idc, 8, return_status, "level_idc"); |
| 264 | |
| 265 | /* seq_parameter_set_id */ |
| 266 | PUT_BITS_UEV(ps_bitstrm, ps_sps->u1_sps_id, return_status, "seq_parameter_set_id"); |
| 267 | |
| 268 | if (ps_sps->u1_profile_idc >= IH264_PROFILE_HIGH) |
| 269 | { |
| 270 | /* chroma_format_idc */ |
| 271 | PUT_BITS_UEV(ps_bitstrm, ps_sps->u1_chroma_format_idc, return_status, "chroma_format_idc"); |
| 272 | |
| 273 | if (ps_sps->u1_chroma_format_idc == CHROMA_FMT_IDC_YUV444) |
| 274 | { |
| 275 | /* i1_residual_colour_transform_flag */ |
| 276 | PUT_BITS(ps_bitstrm, ps_sps->i1_residual_colour_transform_flag, 1, return_status, "i1_residual_colour_transform_flag"); |
| 277 | } |
| 278 | |
| 279 | /* bit_depth_luma_minus8 */ |
| 280 | PUT_BITS_UEV(ps_bitstrm, (ps_sps->i1_bit_depth_luma - 8), return_status, "bit_depth_luma_minus8"); |
| 281 | |
| 282 | /* bit_depth_chroma_minus8 */ |
| 283 | PUT_BITS_UEV(ps_bitstrm, (ps_sps->i1_bit_depth_chroma - 8), return_status, "bit_depth_chroma_minus8"); |
| 284 | |
| 285 | /* qpprime_y_zero_transform_bypass_flag */ |
| 286 | PUT_BITS(ps_bitstrm, ps_sps->i1_qpprime_y_zero_transform_bypass_flag, 1, return_status, "qpprime_y_zero_transform_bypass_flag"); |
| 287 | |
| 288 | /* seq_scaling_matrix_present_flag */ |
| 289 | PUT_BITS(ps_bitstrm, ps_sps->i1_seq_scaling_matrix_present_flag, 1, return_status, "seq_scaling_matrix_present_flag"); |
| 290 | |
| 291 | /* seq_scaling_list */ |
| 292 | if (ps_sps->i1_seq_scaling_matrix_present_flag) |
| 293 | { |
| 294 | /* TODO_LATER: Will be enabled once scaling list support is added */ |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | /* log2_max_frame_num_minus4 */ |
| 299 | PUT_BITS_UEV(ps_bitstrm, (ps_sps->i1_log2_max_frame_num - 4), return_status, "log2_max_frame_num_minus4"); |
| 300 | |
| 301 | /* pic_order_cnt_type */ |
| 302 | PUT_BITS_UEV(ps_bitstrm, ps_sps->i1_pic_order_cnt_type, return_status, "pic_order_cnt_type"); |
| 303 | |
| 304 | if (ps_sps->i1_pic_order_cnt_type == 0) |
| 305 | { |
| 306 | /* log2_max_pic_order_cnt_lsb_minus4 */ |
| 307 | PUT_BITS_UEV(ps_bitstrm, (ps_sps->i1_log2_max_pic_order_cnt_lsb - 4), return_status, "log2_max_pic_order_cnt_lsb_minus4"); |
| 308 | } |
| 309 | else if (ps_sps->i1_pic_order_cnt_type == 1) |
| 310 | { |
| 311 | /* delta_pic_order_always_zero_flag */ |
| 312 | PUT_BITS(ps_bitstrm, ps_sps->i1_delta_pic_order_always_zero_flag, 1, return_status, "delta_pic_order_always_zero_flag"); |
| 313 | |
| 314 | /* offset_for_non_ref_pic */ |
| 315 | PUT_BITS_SEV(ps_bitstrm, ps_sps->i4_offset_for_non_ref_pic, return_status, "offset_for_non_ref_pic"); |
| 316 | |
| 317 | /* offset_for_top_to_bottom_field */ |
| 318 | PUT_BITS_SEV(ps_bitstrm, ps_sps->i4_offset_for_top_to_bottom_field, return_status, "offset_for_top_to_bottom_field"); |
| 319 | |
| 320 | /* num_ref_frames_in_pic_order_cnt_cycle */ |
| 321 | PUT_BITS_UEV(ps_bitstrm, ps_sps->u1_num_ref_frames_in_pic_order_cnt_cycle, return_status, "num_ref_frames_in_pic_order_cnt_cycle"); |
| 322 | |
| 323 | /* Offset for ref frame */ |
| 324 | for (i=0; i<ps_sps->u1_num_ref_frames_in_pic_order_cnt_cycle; i++) |
| 325 | { |
| 326 | /* offset_for_ref_frame */ |
| 327 | PUT_BITS_SEV(ps_bitstrm, ps_sps->ai4_offset_for_ref_frame[i], return_status, "offset_for_ref_frame"); |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | /* num_ref_frames */ |
| 332 | PUT_BITS_UEV(ps_bitstrm, ps_sps->u1_max_num_ref_frames, return_status, "num_ref_frames"); |
| 333 | |
| 334 | /* gaps_in_frame_num_value_allowed_flag */ |
| 335 | PUT_BITS(ps_bitstrm, ps_sps->i1_gaps_in_frame_num_value_allowed_flag, 1, return_status, "gaps_in_frame_num_value_allowed_flag"); |
| 336 | |
| 337 | /* pic_width_in_mbs_minus1 */ |
| 338 | PUT_BITS_UEV(ps_bitstrm, ps_sps->i2_pic_width_in_mbs_minus1, return_status, "pic_width_in_mbs_minus1"); |
| 339 | |
| 340 | /* pic_height_in_map_units_minus1 */ |
| 341 | PUT_BITS_UEV(ps_bitstrm, ps_sps->i2_pic_height_in_map_units_minus1, return_status, "pic_height_in_map_units_minus1"); |
| 342 | |
| 343 | /* frame_mbs_only_flag */ |
| 344 | PUT_BITS(ps_bitstrm, ps_sps->i1_frame_mbs_only_flag, 1, return_status, "frame_mbs_only_flag"); |
| 345 | |
| 346 | if (!ps_sps->i1_frame_mbs_only_flag) |
| 347 | { |
| 348 | /* mb_adaptive_frame_field_flag */ |
| 349 | PUT_BITS(ps_bitstrm, ps_sps->i1_mb_adaptive_frame_field_flag, 1, return_status, "mb_adaptive_frame_field_flag"); |
| 350 | } |
| 351 | |
| 352 | /* direct_8x8_inference_flag */ |
| 353 | PUT_BITS(ps_bitstrm, ps_sps->i1_direct_8x8_inference_flag, 1, return_status, "direct_8x8_inference_flag"); |
| 354 | |
| 355 | /* frame_cropping_flag */ |
| 356 | PUT_BITS(ps_bitstrm, ps_sps->i1_frame_cropping_flag, 1, return_status, "frame_cropping_flag"); |
| 357 | |
| 358 | if (ps_sps->i1_frame_cropping_flag) |
| 359 | { |
| 360 | /* frame_crop_left_offset */ |
| 361 | PUT_BITS_UEV(ps_bitstrm, ps_sps->i2_frame_crop_left_offset, return_status, "frame_crop_left_offset"); |
| 362 | |
| 363 | /* frame_crop_right_offset */ |
| 364 | PUT_BITS_UEV(ps_bitstrm, ps_sps->i2_frame_crop_right_offset, return_status, "frame_crop_right_offset"); |
| 365 | |
| 366 | /* frame_crop_top_offset */ |
| 367 | PUT_BITS_UEV(ps_bitstrm, ps_sps->i2_frame_crop_top_offset, return_status, "frame_crop_top_offset"); |
| 368 | |
| 369 | /* frame_crop_bottom_offset */ |
| 370 | PUT_BITS_UEV(ps_bitstrm, ps_sps->i2_frame_crop_bottom_offset, return_status, "frame_crop_bottom_offset"); |
| 371 | } |
| 372 | |
| 373 | /* vui_parameters_present_flag */ |
| 374 | PUT_BITS(ps_bitstrm, ps_sps->i1_vui_parameters_present_flag, 1, return_status, "vui_parameters_present_flag"); |
| 375 | |
| 376 | if (ps_sps->i1_vui_parameters_present_flag) |
| 377 | { |
| 378 | /* Add vui parameters to the bitstream */; |
Hamsalekha S | 126d84e | 2015-07-30 16:20:35 +0530 | [diff] [blame] | 379 | return_status |= ih264e_generate_vui(ps_bitstrm, ps_vui); |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 380 | } |
| 381 | |
| 382 | /* rbsp trailing bits */ |
| 383 | return_status |= ih264e_put_rbsp_trailing_bits(ps_bitstrm); |
| 384 | |
| 385 | return return_status; |
| 386 | } |
| 387 | |
| 388 | /** |
| 389 | ****************************************************************************** |
| 390 | * |
| 391 | * @brief Generates PPS (Picture Parameter Set) |
| 392 | * |
| 393 | * @par Description |
| 394 | * Generate Picture Parameter Set as per Section 7.3.2.2 |
| 395 | * |
| 396 | * @param[in] ps_bitstrm |
| 397 | * pointer to bitstream context (handle) |
| 398 | * |
| 399 | * @param[in] ps_pps |
| 400 | * pointer to structure containing PPS data |
| 401 | * |
| 402 | * @return success or failure error code |
| 403 | * |
| 404 | ****************************************************************************** |
| 405 | */ |
| 406 | WORD32 ih264e_generate_pps(bitstrm_t *ps_bitstrm, pps_t *ps_pps, sps_t *ps_sps) |
| 407 | { |
| 408 | WORD32 return_status = IH264E_SUCCESS; |
| 409 | |
| 410 | /* Insert the NAL start code */ |
| 411 | return_status |= ih264e_put_nal_start_code_prefix(ps_bitstrm, 1); |
| 412 | |
| 413 | /* Insert Nal Unit Header */ |
| 414 | PUT_BITS(ps_bitstrm, NAL_PPS_FIRST_BYTE, 8, return_status, "pps_header"); |
| 415 | |
| 416 | /* pic_parameter_set_id */ |
| 417 | PUT_BITS_UEV(ps_bitstrm, ps_pps->u1_pps_id, return_status, "pic_parameter_set_id"); |
| 418 | |
| 419 | /* seq_parameter_set_id */ |
| 420 | PUT_BITS_UEV(ps_bitstrm, ps_pps->u1_sps_id, return_status, "seq_parameter_set_id"); |
| 421 | |
| 422 | /* Entropy coding : 0-VLC; 1 - CABAC */ |
| 423 | PUT_BITS(ps_bitstrm, ps_pps->u1_entropy_coding_mode_flag, 1, return_status, "Entropy coding : 0-VLC; 1 - CABAC"); |
| 424 | |
| 425 | /* Pic order present flag */ |
| 426 | PUT_BITS(ps_bitstrm, ps_pps->u1_pic_order_present_flag, 1, return_status, "Pic order present flag"); |
| 427 | |
| 428 | /* Number of slice groups */ |
| 429 | PUT_BITS_UEV(ps_bitstrm, ps_pps->u1_num_slice_groups - 1, return_status, "Number of slice groups"); |
| 430 | |
| 431 | if (ps_pps->u1_num_slice_groups > 1) |
| 432 | { |
| 433 | /* TODO_LATER: Currently the number of slice groups minus 1 is 0. |
| 434 | * If this is not the case, we have to add Slice group map type to the bit stream*/ |
| 435 | } |
| 436 | |
| 437 | /* num_ref_idx_l0_default_active_minus1 */ |
| 438 | PUT_BITS_UEV(ps_bitstrm, ps_pps->i1_num_ref_idx_l0_default_active - 1, return_status, "num_ref_idx_l0_default_active_minus1"); |
| 439 | |
| 440 | /* num_ref_idx_l1_default_active_minus1 */ |
| 441 | PUT_BITS_UEV(ps_bitstrm, ps_pps->i1_num_ref_idx_l1_default_active - 1, return_status, "num_ref_idx_l1_default_active_minus1"); |
| 442 | |
| 443 | /* weighted_pred_flag */ |
| 444 | PUT_BITS(ps_bitstrm, ps_pps->i1_weighted_pred_flag, 1, return_status, "weighted_pred_flag"); |
| 445 | |
| 446 | /* weighted_bipred_flag */ |
| 447 | PUT_BITS(ps_bitstrm, ps_pps->i1_weighted_bipred_idc, 2, return_status, "weighted_bipred_idc"); |
| 448 | |
| 449 | /* pic_init_qp_minus26 */ |
| 450 | PUT_BITS_SEV(ps_bitstrm, ps_pps->i1_pic_init_qp - 26, return_status, "pic_init_qp_minus26"); |
| 451 | |
| 452 | /* pic_init_qs_minus26 */ |
| 453 | PUT_BITS_SEV(ps_bitstrm, ps_pps->i1_pic_init_qs - 26, return_status, "pic_init_qs_minus26"); |
| 454 | |
| 455 | /* chroma_qp_index_offset */ |
| 456 | PUT_BITS_SEV(ps_bitstrm, ps_pps->i1_chroma_qp_index_offset, return_status, "chroma_qp_index_offset"); |
| 457 | |
| 458 | /* deblocking_filter_control_present_flag */ |
| 459 | PUT_BITS(ps_bitstrm, ps_pps->i1_deblocking_filter_control_present_flag, 1, return_status, "deblocking_filter_control_present_flag"); |
| 460 | |
| 461 | /* constrained_intra_pred_flag */ |
| 462 | PUT_BITS(ps_bitstrm, ps_pps->i1_constrained_intra_pred_flag, 1, return_status, "constrained_intra_pred_flag"); |
| 463 | |
| 464 | /*redundant_pic_cnt_present_flag */ |
| 465 | PUT_BITS(ps_bitstrm, ps_pps->i1_redundant_pic_cnt_present_flag, 1, return_status, "redundant_pic_cnt_present_flag"); |
| 466 | |
| 467 | if (ps_sps->u1_profile_idc >= IH264_PROFILE_HIGH) |
| 468 | { |
| 469 | /* transform_8x8_mode_flag */ |
| 470 | PUT_BITS(ps_bitstrm, ps_pps->i1_transform_8x8_mode_flag, 1, return_status, "transform_8x8_mode_flag"); |
| 471 | |
| 472 | /* pic_scaling_matrix_present_flag */ |
| 473 | PUT_BITS(ps_bitstrm, ps_pps->i1_pic_scaling_matrix_present_flag, 1, return_status, "pic_scaling_matrix_present_flag"); |
| 474 | |
| 475 | if(ps_pps->i1_pic_scaling_matrix_present_flag) |
| 476 | { |
| 477 | /* TODO_LATER: Will be enabled once scaling list support is added */ |
| 478 | } |
| 479 | |
| 480 | /* Second chroma QP offset */ |
| 481 | PUT_BITS_SEV(ps_bitstrm, ps_pps->i1_second_chroma_qp_index_offset, return_status, "Second chroma QP offset"); |
| 482 | } |
| 483 | |
| 484 | return_status |= ih264e_put_rbsp_trailing_bits(ps_bitstrm); |
| 485 | |
| 486 | return return_status; |
| 487 | } |
| 488 | |
| 489 | /** |
| 490 | ****************************************************************************** |
| 491 | * |
| 492 | * @brief Generates Slice Header |
| 493 | * |
| 494 | * @par Description |
| 495 | * Generate Slice Header as per Section 7.3.5.1 |
| 496 | * |
| 497 | * @param[inout] ps_bitstrm |
| 498 | * pointer to bitstream context for generating slice header |
| 499 | * |
| 500 | * @param[in] ps_slice_hdr |
| 501 | * pointer to slice header params |
| 502 | * |
| 503 | * @param[in] ps_pps |
| 504 | * pointer to pps params referred by slice |
| 505 | * |
| 506 | * @param[in] ps_sps |
| 507 | * pointer to sps params referred by slice |
| 508 | * |
| 509 | * @param[out] ps_dup_bit_strm_ent_offset |
| 510 | * Bitstream struct to store bitstream state |
| 511 | * |
| 512 | * @param[out] pu4_first_slice_start_offset |
| 513 | * first slice offset is returned |
| 514 | * |
| 515 | * @return success or failure error code |
| 516 | * |
| 517 | ****************************************************************************** |
| 518 | */ |
| 519 | WORD32 ih264e_generate_slice_header(bitstrm_t *ps_bitstrm, |
| 520 | slice_header_t *ps_slice_hdr, |
| 521 | pps_t *ps_pps, |
| 522 | sps_t *ps_sps) |
| 523 | { |
| 524 | |
| 525 | WORD32 return_status = IH264E_SUCCESS; |
| 526 | |
| 527 | /* Insert start code */ |
| 528 | return_status |= ih264e_put_nal_start_code_prefix(ps_bitstrm, 1); |
| 529 | |
| 530 | /* Insert Nal Unit Header */ |
| 531 | return_status |= ih264e_generate_nal_unit_header(ps_bitstrm, ps_slice_hdr->i1_nal_unit_type, ps_slice_hdr->i1_nal_unit_idc); |
| 532 | |
| 533 | /* first_mb_in_slice */ |
| 534 | PUT_BITS_UEV(ps_bitstrm, ps_slice_hdr->u2_first_mb_in_slice, return_status, "first_mb_in_slice"); |
| 535 | |
| 536 | /* slice_type */ |
| 537 | PUT_BITS_UEV(ps_bitstrm, ps_slice_hdr->u1_slice_type, return_status, "slice_type"); |
| 538 | |
| 539 | /* pic_parameter_set_id */ |
| 540 | PUT_BITS_UEV(ps_bitstrm, ps_slice_hdr->u1_pps_id, return_status, "pic_parameter_set_id"); |
| 541 | |
| 542 | /* frame_num */ |
| 543 | PUT_BITS(ps_bitstrm, ps_slice_hdr->i4_frame_num, ps_sps->i1_log2_max_frame_num, return_status, "frame_num"); |
| 544 | |
| 545 | if (!ps_sps->i1_frame_mbs_only_flag) |
| 546 | { |
| 547 | /* field_pic_flag */ |
| 548 | PUT_BITS(ps_bitstrm, ps_slice_hdr->i1_field_pic_flag, 1, return_status, "field_pic_flag"); |
| 549 | |
| 550 | if(ps_slice_hdr->i1_field_pic_flag) |
| 551 | { |
| 552 | /* bottom_field_flag */ |
| 553 | PUT_BITS(ps_bitstrm, ps_slice_hdr->i1_bottom_field_flag, 1, return_status, "bottom_field_flag"); |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | if (ps_slice_hdr->i1_nal_unit_type == 5) |
| 558 | { |
| 559 | /* u2_idr_pic_id */ |
| 560 | PUT_BITS_UEV(ps_bitstrm, ps_slice_hdr->u2_idr_pic_id, return_status, "u2_idr_pic_id"); |
| 561 | } |
| 562 | |
| 563 | if (ps_sps->i1_pic_order_cnt_type == 0) |
| 564 | { |
| 565 | /* pic_order_cnt_lsb */ |
| 566 | PUT_BITS(ps_bitstrm, ps_slice_hdr->i4_pic_order_cnt_lsb, ps_sps->i1_log2_max_pic_order_cnt_lsb, return_status, "pic_order_cnt_lsb"); |
| 567 | |
| 568 | if(ps_pps->u1_pic_order_present_flag && !ps_slice_hdr->i1_field_pic_flag) |
| 569 | { |
| 570 | /* delta_pic_order_cnt_bottom */ |
| 571 | PUT_BITS_SEV(ps_bitstrm, ps_slice_hdr->i4_delta_pic_order_cnt_bottom, return_status, "delta_pic_order_cnt_bottom"); |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | if (ps_sps->i1_pic_order_cnt_type == 1 && !ps_sps->i1_delta_pic_order_always_zero_flag) |
| 576 | { |
| 577 | /* delta_pic_order_cnt[0] */ |
| 578 | PUT_BITS_SEV(ps_bitstrm, ps_slice_hdr->ai4_delta_pic_order_cnt[0], return_status, "delta_pic_order_cnt[0]"); |
| 579 | |
| 580 | if (ps_pps->u1_pic_order_present_flag && !ps_slice_hdr->i1_field_pic_flag) |
| 581 | { |
| 582 | /* delta_pic_order_cnt[1] */ |
| 583 | PUT_BITS_SEV(ps_bitstrm, ps_slice_hdr->ai4_delta_pic_order_cnt[1], return_status, "delta_pic_order_cnt[1]"); |
| 584 | } |
| 585 | } |
| 586 | |
| 587 | if (ps_pps->i1_redundant_pic_cnt_present_flag) |
| 588 | { |
| 589 | /* redundant_pic_cnt */ |
| 590 | PUT_BITS_UEV(ps_bitstrm, ps_slice_hdr->u1_redundant_pic_cnt, return_status, "redundant_pic_cnt"); |
| 591 | } |
| 592 | |
| 593 | if (ps_slice_hdr->u1_slice_type == BSLICE) |
| 594 | { |
| 595 | /* direct_spatial_mv_pred_flag */ |
| 596 | PUT_BITS(ps_bitstrm, ps_slice_hdr->u1_direct_spatial_mv_pred_flag, 1, return_status, "direct_spatial_mv_pred_flag"); |
| 597 | } |
| 598 | |
| 599 | if (ps_slice_hdr->u1_slice_type == PSLICE || ps_slice_hdr->u1_slice_type == SPSLICE || ps_slice_hdr->u1_slice_type == BSLICE) |
| 600 | { |
| 601 | /* num_ref_idx_active_override_flag */ |
| 602 | PUT_BITS(ps_bitstrm, ps_slice_hdr->u1_num_ref_idx_active_override_flag, 1, return_status, "num_ref_idx_active_override_flag"); |
| 603 | |
| 604 | if (ps_slice_hdr->u1_num_ref_idx_active_override_flag) |
| 605 | { |
| 606 | /* num_ref_idx_l0_active_minus1 */ |
| 607 | PUT_BITS_UEV(ps_bitstrm, ps_slice_hdr->i1_num_ref_idx_l0_active - 1, return_status, "num_ref_idx_l0_active_minus1"); |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 608 | |
| 609 | if (ps_slice_hdr->u1_slice_type == BSLICE) |
| 610 | { |
| 611 | /* num_ref_idx_l1_active_minus1 */ |
| 612 | PUT_BITS_UEV(ps_bitstrm, ps_slice_hdr->i1_num_ref_idx_l1_active - 1, return_status, "num_ref_idx_l1_active_minus1"); |
| 613 | } |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 614 | } |
| 615 | } |
| 616 | |
| 617 | /* ref_idx_reordering */ |
| 618 | /* TODO: ref_idx_reordering */ |
| 619 | if ((ps_slice_hdr->u1_slice_type != ISLICE) && (ps_slice_hdr->u1_slice_type != SISLICE)) |
| 620 | { |
| 621 | /* ref_pic_list_reordering_flag_l0 */ |
| 622 | PUT_BITS(ps_bitstrm, ps_slice_hdr->u1_ref_idx_reordering_flag_l0, 1, return_status, "ref_pic_list_reordering_flag_l0"); |
| 623 | |
| 624 | if (ps_slice_hdr->u1_ref_idx_reordering_flag_l0) |
| 625 | { |
| 626 | |
| 627 | } |
| 628 | } |
| 629 | |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 630 | if (ps_slice_hdr->u1_slice_type == BSLICE) |
| 631 | { |
| 632 | /* ref_pic_list_reordering_flag_l1 */ |
| 633 | PUT_BITS(ps_bitstrm, ps_slice_hdr->u1_ref_idx_reordering_flag_l1, 1, return_status, "ref_pic_list_reordering_flag_l1"); |
| 634 | |
| 635 | if (ps_slice_hdr->u1_ref_idx_reordering_flag_l1) |
| 636 | { |
| 637 | |
| 638 | } |
| 639 | } |
| 640 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 641 | if ((ps_pps->i1_weighted_pred_flag && |
| 642 | (ps_slice_hdr->u1_slice_type == PSLICE || ps_slice_hdr->u1_slice_type == SPSLICE)) || |
Martin Storsjo | 4adb9f4 | 2015-06-08 15:07:59 +0300 | [diff] [blame] | 643 | (ps_slice_hdr->u1_slice_type == BSLICE && ps_pps->i1_weighted_bipred_idc == 1)) |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 644 | { |
| 645 | /* TODO_LATER: Currently there is no support for weighted prediction. |
| 646 | This needs to be updated when the support is added */ |
| 647 | } |
| 648 | |
| 649 | if (ps_slice_hdr->i1_nal_unit_idc != 0) |
| 650 | { |
| 651 | if (ps_slice_hdr->i1_nal_unit_type == 5) |
| 652 | { |
| 653 | /* no_output_of_prior_pics_flag */ |
| 654 | PUT_BITS(ps_bitstrm, ps_slice_hdr->u1_no_output_of_prior_pics_flag , 1, return_status, "no_output_of_prior_pics_flag "); |
| 655 | |
| 656 | /* long_term_reference_flag */ |
| 657 | PUT_BITS(ps_bitstrm, ps_slice_hdr->u1_long_term_reference_flag , 1, return_status, "long_term_reference_flag "); |
| 658 | } |
| 659 | else |
| 660 | { |
| 661 | /* adaptive_ref_pic_marking_mode_flag */ |
| 662 | PUT_BITS(ps_bitstrm, ps_slice_hdr->u1_adaptive_ref_pic_marking_mode_flag , 1, return_status, "adaptive_ref_pic_marking_mode_flag "); |
| 663 | |
| 664 | if (ps_slice_hdr->u1_adaptive_ref_pic_marking_mode_flag) |
| 665 | { |
| 666 | /* TODO: if the reference picture marking mode is adaptive |
| 667 | add these fields in the bit-stream */ |
| 668 | } |
| 669 | } |
| 670 | } |
| 671 | |
| 672 | if (ps_slice_hdr->u1_entropy_coding_mode_flag && ps_slice_hdr->u1_slice_type != ISLICE && |
| 673 | ps_slice_hdr->u1_slice_type != SISLICE) |
| 674 | { |
| 675 | /* cabac_init_idc */ |
| 676 | PUT_BITS_UEV(ps_bitstrm, ps_slice_hdr->i1_cabac_init_idc, return_status, "cabac_init_idc"); |
| 677 | } |
| 678 | |
| 679 | /* slice_qp_delta */ |
| 680 | PUT_BITS_SEV(ps_bitstrm, ps_slice_hdr->i1_slice_qp - ps_pps->i1_pic_init_qp, return_status, "slice_qp_delta"); |
| 681 | |
| 682 | if (ps_slice_hdr->u1_slice_type == SPSLICE || ps_slice_hdr->u1_slice_type == SISLICE) |
| 683 | { |
| 684 | if (ps_slice_hdr->u1_slice_type == SPSLICE) |
| 685 | { |
| 686 | /* sp_for_switch_flag */ |
| 687 | PUT_BITS(ps_bitstrm, ps_slice_hdr->u1_sp_for_switch_flag , 1, return_status, "sp_for_switch_flag"); |
| 688 | } |
| 689 | /* slice_qs_delta */ |
| 690 | PUT_BITS_SEV(ps_bitstrm, ps_slice_hdr->u1_slice_qs - ps_pps->i1_pic_init_qs, return_status, "slice_qs_delta"); |
| 691 | } |
| 692 | |
| 693 | if (ps_pps->i1_deblocking_filter_control_present_flag) |
| 694 | { |
| 695 | /* disable_deblocking_filter_idc */ |
| 696 | PUT_BITS_UEV(ps_bitstrm, ps_slice_hdr->u1_disable_deblocking_filter_idc, return_status, "disable_deblocking_filter_idc"); |
| 697 | |
| 698 | if(ps_slice_hdr->u1_disable_deblocking_filter_idc != 1) |
| 699 | { |
| 700 | /* slice_alpha_c0_offset_div2 */ |
| 701 | PUT_BITS_SEV(ps_bitstrm, ps_slice_hdr->i1_slice_alpha_c0_offset_div2, return_status, "slice_alpha_c0_offset_div2"); |
| 702 | |
| 703 | /* slice_beta_offset_div2 */ |
| 704 | PUT_BITS_SEV(ps_bitstrm, ps_slice_hdr->i1_slice_beta_offset_div2, return_status, "slice_beta_offset_div2"); |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | if (ps_slice_hdr->u1_num_slice_groups_minus1 > 0 && |
| 709 | ps_pps->u1_slice_group_map_type >= 3 && |
| 710 | ps_pps->u1_slice_group_map_type <= 5) |
| 711 | { |
| 712 | /* slice_group_change_cycle */ |
| 713 | /* TODO_LATER: Currently the number of slice groups minus 1 is 0. |
| 714 | * If this is not the case, we have to add Slice group map type to the bit stream */ |
| 715 | } |
| 716 | |
| 717 | return return_status; |
| 718 | } |
| 719 | |
Hamsalekha S | 126d84e | 2015-07-30 16:20:35 +0530 | [diff] [blame] | 720 | /** |
| 721 | ****************************************************************************** |
| 722 | * |
| 723 | * @brief Populates VUI structure |
| 724 | * |
| 725 | * @par Description |
| 726 | * Populates VUI structure for its use in header generation |
| 727 | * |
| 728 | * @param[in] ps_codec |
| 729 | * pointer to encoder context |
| 730 | * |
| 731 | * @param[out] ps_vui |
| 732 | * pointer to vui params that needs to be populated |
| 733 | * |
| 734 | * @return success or failure error code |
| 735 | * |
| 736 | ****************************************************************************** |
| 737 | */ |
| 738 | IH264E_ERROR_T ih264e_populate_vui(codec_t *ps_codec, vui_t *ps_vui) |
| 739 | { |
| 740 | sps_t *ps_sps; |
| 741 | |
| 742 | ps_sps = ps_codec->ps_sps_base + ps_codec->i4_sps_id; |
| 743 | ps_vui->u1_aspect_ratio_info_present_flag = 0; |
| 744 | ps_vui->u1_overscan_info_present_flag = 0; |
| 745 | ps_vui->u1_video_signal_type_present_flag = 0; |
| 746 | ps_vui->u1_chroma_loc_info_present_flag = 0; |
| 747 | ps_vui->u1_vui_timing_info_present_flag = 0; |
| 748 | ps_vui->u1_nal_hrd_parameters_present_flag = 0; |
| 749 | ps_vui->u1_vcl_hrd_parameters_present_flag = 0; |
| 750 | ps_vui->u1_pic_struct_present_flag = 0; |
| 751 | ps_vui->u1_bitstream_restriction_flag = 1; |
| 752 | ps_vui->u1_motion_vectors_over_pic_boundaries_flag = 1; |
| 753 | ps_vui->u1_max_bytes_per_pic_denom = 0; |
| 754 | ps_vui->u1_max_bits_per_mb_denom = 0; |
| 755 | ps_vui->u1_log2_max_mv_length_horizontal = 16; |
| 756 | ps_vui->u1_log2_max_mv_length_vertical = 16; |
| 757 | |
| 758 | if(ps_codec->s_cfg.u4_num_bframes == 0) |
| 759 | { |
| 760 | ps_vui->u1_num_reorder_frames = 0; |
| 761 | } |
| 762 | else |
| 763 | { |
| 764 | ps_vui->u1_num_reorder_frames = 1; |
| 765 | } |
| 766 | |
| 767 | ps_vui->u1_max_dec_frame_buffering = ps_sps->u1_max_num_ref_frames; |
| 768 | |
| 769 | return 0; |
| 770 | } |
| 771 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 772 | |
| 773 | |
| 774 | /** |
| 775 | ****************************************************************************** |
| 776 | * |
| 777 | * @brief Populates sps structure |
| 778 | * |
| 779 | * @par Description |
| 780 | * Populates sps structure for its use in header generation |
| 781 | * |
| 782 | * @param[in] ps_codec |
| 783 | * pointer to encoder context |
| 784 | * |
| 785 | * @param[out] ps_sps |
| 786 | * pointer to sps params that needs to be populated |
| 787 | * |
| 788 | * @return success or failure error code |
| 789 | * |
| 790 | ****************************************************************************** |
| 791 | */ |
| 792 | IH264E_ERROR_T ih264e_populate_sps(codec_t *ps_codec, sps_t *ps_sps) |
| 793 | { |
| 794 | /* active config parameters */ |
| 795 | cfg_params_t *ps_cfg = &(ps_codec->s_cfg); |
| 796 | |
| 797 | // /* level */ |
| 798 | // IH264_LEVEL_T level_idc; |
| 799 | |
| 800 | /* error_status */ |
| 801 | IH264E_ERROR_T i4_err_code = IH264E_FAIL; |
| 802 | |
| 803 | /* profile */ |
| 804 | /* |
| 805 | * Baseline profile supports, 8 bits per sample, 4:2:0 format, CAVLC. |
| 806 | * B frames are not allowed. Further, Flexible mb ordering, Redundant slices, Arbitrary slice ordering are supported. |
| 807 | * The constrained baseline profile is baseline profile minus ASO, FMO and redundant slices. |
| 808 | * To the constrained baseline profile if we add support for B slices, support for encoding interlaced frames, |
| 809 | * support for weighted prediction and introduce CABAC entropy coding then we have Main Profile. |
| 810 | */ |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 811 | if ((ps_cfg->u4_num_bframes) || (ps_cfg->e_content_type != IV_PROGRESSIVE) || |
| 812 | (ps_cfg->u4_entropy_coding_mode == CABAC) || (ps_cfg->u4_weighted_prediction)) |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 813 | { |
| 814 | ps_sps->u1_profile_idc = IH264_PROFILE_MAIN; |
| 815 | } |
| 816 | else |
| 817 | { |
| 818 | ps_sps->u1_profile_idc = IH264_PROFILE_BASELINE; |
| 819 | } |
| 820 | |
| 821 | /* level */ |
Harinarayanan K K | d3e18f0 | 2015-06-19 14:44:42 +0530 | [diff] [blame] | 822 | ps_sps->u1_level_idc = MAX(ps_cfg->u4_max_level, |
| 823 | (UWORD32)ih264e_get_min_level(ps_cfg->u4_max_wd, ps_cfg->u4_max_ht)); |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 824 | |
| 825 | /* constrained flags */ |
| 826 | /* |
| 827 | * baseline profile automatically implies set 0 flag |
| 828 | */ |
| 829 | ps_sps->u1_constraint_set0_flag = (ps_sps->u1_profile_idc == IH264_PROFILE_BASELINE); |
| 830 | /* |
| 831 | * main profile automatically implies set 1 flag |
| 832 | * Although the encoder says it supports Baseline profile it actually supports constrained |
| 833 | * baseline profile as ASO, FMO and redundant slices are not supported |
| 834 | */ |
| 835 | ps_sps->u1_constraint_set1_flag = (ps_sps->u1_profile_idc <= IH264_PROFILE_MAIN); |
| 836 | /* |
| 837 | * extended profile is not supported |
| 838 | */ |
| 839 | ps_sps->u1_constraint_set2_flag = 0x00; |
| 840 | /* |
| 841 | * level 1b or level 11 |
| 842 | */ |
| 843 | if (ps_sps->u1_level_idc == IH264_LEVEL_1B) |
| 844 | { |
| 845 | ps_sps->u1_constraint_set3_flag = 0; |
| 846 | ps_sps->u1_level_idc = IH264_LEVEL_11; |
| 847 | } |
| 848 | else |
| 849 | { |
| 850 | ps_sps->u1_constraint_set3_flag = 0; |
| 851 | } |
| 852 | |
| 853 | /* active sps id */ |
| 854 | ps_sps->u1_sps_id = ps_codec->i4_sps_id; |
| 855 | |
| 856 | if (ps_sps->u1_profile_idc >= IH264_PROFILE_HIGH) |
| 857 | { |
| 858 | /* chroma format idc */ |
| 859 | ps_sps->u1_chroma_format_idc = CHROMA_FMT_IDC_YUV420; |
| 860 | |
| 861 | /* residual_colour_transform_flag */ |
| 862 | ps_sps->i1_residual_colour_transform_flag = 0; |
| 863 | |
| 864 | /* luma bit depth 8 */ |
| 865 | ps_sps->i1_bit_depth_luma = 8; |
| 866 | |
| 867 | /* chroma bit depth 8 */ |
| 868 | ps_sps->i1_bit_depth_chroma = 8; |
| 869 | |
| 870 | /* qpprime_y_zero_transform_bypass_flag */ |
| 871 | ps_sps->i1_qpprime_y_zero_transform_bypass_flag = 0; |
| 872 | |
| 873 | /* seq_scaling_matrix_present_flag */ |
| 874 | ps_sps->i1_seq_scaling_matrix_present_flag = 0; |
| 875 | |
| 876 | if (ps_sps->i1_seq_scaling_matrix_present_flag) |
| 877 | { |
| 878 | /* TODO_LATER: Will be enabled once scaling list support is added */ |
| 879 | } |
| 880 | } |
| 881 | |
| 882 | /* log2_max_frame_num_minus4 */ |
| 883 | ps_sps->i1_log2_max_frame_num = 16; |
| 884 | |
| 885 | /* pic_order_cnt_type */ |
| 886 | ps_sps->i1_pic_order_cnt_type = 2; |
| 887 | |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 888 | if (ps_codec->i4_non_ref_frames_in_stream) |
| 889 | { |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 890 | ps_sps->i1_pic_order_cnt_type = 0; |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 891 | } |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 892 | |
| 893 | /* log2_max_pic_order_cnt_lsb_minus4 */ |
| 894 | ps_sps->i1_log2_max_pic_order_cnt_lsb = 8; |
| 895 | |
| 896 | /* TODO : add support for other poc types */ |
| 897 | if (ps_sps->i1_pic_order_cnt_type == 0) |
| 898 | { |
| 899 | |
| 900 | } |
| 901 | else if (ps_sps->i1_pic_order_cnt_type == 1) |
| 902 | { |
| 903 | |
| 904 | } |
| 905 | |
| 906 | /* num_ref_frames */ |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 907 | /* TODO : Should we have a flexible num ref frames */ |
| 908 | if (ps_codec->s_cfg.u4_num_bframes > 0) |
| 909 | { |
| 910 | ps_sps->u1_max_num_ref_frames = 2; |
| 911 | } |
| 912 | else |
| 913 | { |
| 914 | ps_sps->u1_max_num_ref_frames = 1; |
| 915 | } |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 916 | |
| 917 | /* gaps_in_frame_num_value_allowed_flag */ |
| 918 | ps_sps->i1_gaps_in_frame_num_value_allowed_flag = 0; |
| 919 | |
| 920 | /* pic width in mb - 1 */ |
| 921 | ps_sps->i2_pic_width_in_mbs_minus1 = ps_cfg->i4_wd_mbs - 1; |
| 922 | |
| 923 | /* pic height in mb - 1 */ |
| 924 | ps_sps->i2_pic_height_in_map_units_minus1 = ps_cfg->i4_ht_mbs - 1;; |
| 925 | |
| 926 | /* frame_mbs_only_flag, no support for interlace encoding */ |
| 927 | ps_sps->i1_frame_mbs_only_flag = 1; |
| 928 | |
| 929 | /* mb_adaptive_frame_field_flag */ |
| 930 | if (ps_sps->i1_frame_mbs_only_flag == 0) |
| 931 | { |
| 932 | ps_sps->i1_mb_adaptive_frame_field_flag = 0; |
| 933 | } |
| 934 | |
| 935 | /* direct_8x8_inference_flag */ |
| 936 | ps_sps->i1_direct_8x8_inference_flag = 0; |
| 937 | |
| 938 | /* cropping params */ |
| 939 | /*NOTE : Cropping values depend on the chroma format |
| 940 | * For our case ,decoder interprets the cropping values as 2*num pixels |
| 941 | * Hence the difference in the disp width and width must be halved before sending |
| 942 | * to get the expected results |
| 943 | */ |
| 944 | ps_sps->i1_frame_cropping_flag = 0; |
| 945 | ps_sps->i2_frame_crop_left_offset = 0; |
| 946 | ps_sps->i2_frame_crop_right_offset = (ps_codec->s_cfg.u4_wd - ps_codec->s_cfg.u4_disp_wd)>>1; |
| 947 | ps_sps->i2_frame_crop_top_offset = 0; |
| 948 | ps_sps->i2_frame_crop_bottom_offset = (ps_codec->s_cfg.u4_ht - ps_codec->s_cfg.u4_disp_ht)>>1; |
| 949 | |
| 950 | if (ps_sps->i2_frame_crop_left_offset || |
| 951 | ps_sps->i2_frame_crop_right_offset || |
| 952 | ps_sps->i2_frame_crop_top_offset || |
| 953 | ps_sps->i2_frame_crop_bottom_offset) |
| 954 | { |
| 955 | ps_sps->i1_frame_cropping_flag = 1; |
| 956 | } |
| 957 | |
| 958 | /* vui params */ |
Hamsalekha S | 126d84e | 2015-07-30 16:20:35 +0530 | [diff] [blame] | 959 | ps_sps->i1_vui_parameters_present_flag = 1; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 960 | |
| 961 | if (ps_sps->i1_vui_parameters_present_flag) |
| 962 | { |
| 963 | /* populate vui params */ |
Hamsalekha S | 126d84e | 2015-07-30 16:20:35 +0530 | [diff] [blame] | 964 | ih264e_populate_vui(ps_codec,&(ps_codec->s_vui)); |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 965 | } |
| 966 | |
| 967 | return i4_err_code; |
| 968 | } |
| 969 | |
| 970 | /** |
| 971 | ****************************************************************************** |
| 972 | * |
| 973 | * @brief Populates pps structure |
| 974 | * |
| 975 | * @par Description |
| 976 | * Populates pps structure for its use in header generation |
| 977 | * |
| 978 | * @param[in] ps_codec |
| 979 | * pointer to encoder context |
| 980 | * |
| 981 | * @param[out] ps_pps |
| 982 | * pointer to pps params that needs to be populated |
| 983 | * |
| 984 | * @return success or failure error code |
| 985 | * |
| 986 | ****************************************************************************** |
| 987 | */ |
| 988 | IH264E_ERROR_T ih264e_populate_pps(codec_t *ps_codec, pps_t *ps_pps) |
| 989 | { |
| 990 | /* active config parameters */ |
| 991 | cfg_params_t *ps_cfg = &(ps_codec->s_cfg); |
| 992 | |
| 993 | /* seq_parameter_set_id */ |
| 994 | ps_pps->u1_sps_id = ps_codec->i4_sps_id; |
| 995 | |
| 996 | /* pic_parameter_set_id */ |
| 997 | ps_pps->u1_pps_id = ps_codec->i4_pps_id; |
| 998 | |
| 999 | /* entropy_coding_mode */ |
| 1000 | ps_pps->u1_entropy_coding_mode_flag = ps_cfg->u4_entropy_coding_mode; |
| 1001 | |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 1002 | /* pic_order_present_flag is unset if we don't have feilds */ |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1003 | ps_pps->u1_pic_order_present_flag = 0; |
| 1004 | |
| 1005 | /* Currently number of slice groups supported are 1 */ |
| 1006 | ps_pps->u1_num_slice_groups = 1; |
| 1007 | |
| 1008 | if (ps_pps->u1_num_slice_groups - 1) |
| 1009 | { |
| 1010 | /* TODO_LATER: Currently the number of slice groups minus 1 is 0. |
| 1011 | * If this is not the case, we have to add Slice group map type to the bit stream*/ |
| 1012 | } |
| 1013 | |
| 1014 | /* number of reference frames for list 0 */ |
| 1015 | /* FIXME : fix this hard coded value */ |
| 1016 | ps_pps->i1_num_ref_idx_l0_default_active = 1; |
| 1017 | |
| 1018 | /* number of reference frames for list 1 */ |
| 1019 | ps_pps->i1_num_ref_idx_l1_default_active = 1; |
| 1020 | |
| 1021 | /* weighted prediction for now is disabled */ |
| 1022 | ps_pps->i1_weighted_pred_flag = 0; |
| 1023 | ps_pps->i1_weighted_bipred_idc = 0; |
| 1024 | |
| 1025 | /* The intent is to not signal qp from pps. Rather send the same in slice headers */ |
| 1026 | ps_pps->i1_pic_init_qp = 0; |
| 1027 | |
| 1028 | /* The intent is to not signal qp from pps. Rather send the same in slice headers */ |
| 1029 | ps_pps->i1_pic_init_qs = 0; |
| 1030 | |
| 1031 | /* The intent is to not signal qp from pps. Rather send the same in slice headers */ |
| 1032 | ps_pps->i1_chroma_qp_index_offset = 0; |
| 1033 | |
| 1034 | /* deblocking filter flags present in slice header */ |
| 1035 | ps_pps->i1_deblocking_filter_control_present_flag = 1; |
| 1036 | |
| 1037 | /* constrained intra prediction */ |
| 1038 | ps_pps->i1_constrained_intra_pred_flag = ps_cfg->u4_constrained_intra_pred; |
| 1039 | |
| 1040 | /* sending redundant slices is not supported for now */ |
| 1041 | ps_pps->i1_redundant_pic_cnt_present_flag = 0; |
| 1042 | |
| 1043 | ps_pps->u1_slice_group_map_type = 0; |
| 1044 | return IH264E_SUCCESS; |
| 1045 | } |
| 1046 | |
| 1047 | /** |
| 1048 | ****************************************************************************** |
| 1049 | * |
| 1050 | * @brief Populates slice header structure |
| 1051 | * |
| 1052 | * @par Description |
| 1053 | * Populates slice header structure for its use in header generation |
| 1054 | * |
| 1055 | * @param[in] ps_proc |
| 1056 | * pointer to proc context |
| 1057 | * |
| 1058 | * @param[out] ps_slice_hdr |
| 1059 | * pointer to slice header structure that needs to be populated |
| 1060 | * |
| 1061 | * @param[in] ps_pps |
| 1062 | * pointer to pps params structure referred by the slice |
| 1063 | * |
| 1064 | * @param[in] ps_sps |
| 1065 | * pointer to sps params referred by the pps |
| 1066 | * |
| 1067 | * @return success or failure error code |
| 1068 | * |
| 1069 | ****************************************************************************** |
| 1070 | */ |
| 1071 | WORD32 ih264e_populate_slice_header(process_ctxt_t *ps_proc, |
| 1072 | slice_header_t *ps_slice_hdr, |
| 1073 | pps_t *ps_pps, |
| 1074 | sps_t *ps_sps) |
| 1075 | { |
| 1076 | /* entropy context */ |
| 1077 | entropy_ctxt_t *ps_entropy = &ps_proc->s_entropy; |
| 1078 | |
| 1079 | codec_t *ps_codec = ps_proc->ps_codec; |
| 1080 | |
| 1081 | if (ps_proc->ps_codec->u4_is_curr_frm_ref) |
| 1082 | { |
| 1083 | ps_slice_hdr->i1_nal_unit_idc = 3; |
| 1084 | } |
| 1085 | else |
| 1086 | { |
| 1087 | ps_slice_hdr->i1_nal_unit_idc = 0; |
| 1088 | } |
| 1089 | |
| 1090 | /* start mb address */ |
| 1091 | ps_slice_hdr->u2_first_mb_in_slice = ps_entropy->i4_mb_start_add; |
| 1092 | |
| 1093 | /* slice type */ |
| 1094 | ps_slice_hdr->u1_slice_type = ps_proc->i4_slice_type; |
| 1095 | |
| 1096 | /* pic_parameter_set_id */ |
| 1097 | ps_slice_hdr->u1_pps_id = ps_pps->u1_pps_id; |
| 1098 | |
| 1099 | /* Separate color plane flag is 0, |
| 1100 | * hence the syntax element color_plane_id not included */ |
| 1101 | |
| 1102 | /* frame num */ |
| 1103 | ps_slice_hdr->i4_frame_num = ps_proc->i4_frame_num; |
| 1104 | |
| 1105 | /* frame_mbs_only_flag, no support for interlace encoding */ |
| 1106 | if (!ps_sps->i1_frame_mbs_only_flag) |
| 1107 | { |
| 1108 | ps_slice_hdr->i1_field_pic_flag = 0; |
| 1109 | |
| 1110 | if (ps_slice_hdr->i1_field_pic_flag) |
| 1111 | { |
| 1112 | ps_slice_hdr->i1_bottom_field_flag = 0; |
| 1113 | } |
| 1114 | } |
| 1115 | |
| 1116 | /* idr pic id */ |
| 1117 | if (ps_proc->u4_is_idr) |
| 1118 | { |
| 1119 | ps_slice_hdr->u2_idr_pic_id = ps_proc->u4_idr_pic_id; |
| 1120 | ps_slice_hdr->i1_nal_unit_type = 5; |
| 1121 | } |
| 1122 | else |
| 1123 | { |
| 1124 | ps_slice_hdr->i1_nal_unit_type = 1; |
| 1125 | } |
| 1126 | |
| 1127 | if (ps_sps->i1_pic_order_cnt_type == 0) |
| 1128 | { |
| 1129 | |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 1130 | WORD32 i4_poc; |
| 1131 | i4_poc = ps_codec->i4_poc; |
| 1132 | i4_poc %= (1 << ps_sps->i1_log2_max_pic_order_cnt_lsb); |
| 1133 | ps_slice_hdr->i4_pic_order_cnt_lsb = i4_poc; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1134 | } |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 1135 | /* TODO add support for poc type 1 */ |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1136 | else if (ps_sps->i1_pic_order_cnt_type == 1) |
| 1137 | { |
| 1138 | |
| 1139 | } |
| 1140 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1141 | |
| 1142 | /* |
| 1143 | * redundant slices are not currently supported. |
| 1144 | * Hence the syntax element redundant slice cnt is not initialized |
| 1145 | */ |
| 1146 | if (ps_pps->i1_redundant_pic_cnt_present_flag) |
| 1147 | { |
| 1148 | |
| 1149 | } |
| 1150 | |
| 1151 | /* direct spatial mv pred flag */ |
| 1152 | if (ps_proc->i4_slice_type == BSLICE) |
| 1153 | { |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 1154 | ps_slice_hdr->u1_direct_spatial_mv_pred_flag = 1; |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1155 | } |
| 1156 | |
| 1157 | if (ps_proc->i4_slice_type == PSLICE || ps_proc->i4_slice_type == SPSLICE || ps_proc->i4_slice_type == BSLICE) |
| 1158 | { |
| 1159 | /* num_ref_idx_active_override_flag */ |
| 1160 | ps_slice_hdr->u1_num_ref_idx_active_override_flag = 0; |
| 1161 | |
| 1162 | if (ps_slice_hdr->u1_num_ref_idx_active_override_flag) |
| 1163 | { |
| 1164 | /* num_ref_idx_l0_active_minus1 */ |
| 1165 | |
| 1166 | if (ps_proc->i4_slice_type == BSLICE) |
| 1167 | { |
| 1168 | /* num_ref_idx_l1_active_minus1 */ |
| 1169 | |
| 1170 | } |
| 1171 | } |
| 1172 | } |
| 1173 | |
| 1174 | /* ref_idx_reordering */ |
| 1175 | /* TODO: ref_idx_reordering */ |
| 1176 | if ((ps_proc->i4_slice_type != ISLICE) && (ps_proc->i4_slice_type != SISLICE)) |
| 1177 | { |
| 1178 | /* ref_pic_list_reordering_flag_l0 */ |
| 1179 | ps_slice_hdr->u1_ref_idx_reordering_flag_l0 = 0; |
| 1180 | |
| 1181 | if (ps_slice_hdr->u1_ref_idx_reordering_flag_l0) |
| 1182 | { |
| 1183 | |
| 1184 | } |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 1185 | |
| 1186 | /* ref_pic_list_reordering_flag_l1 */ |
| 1187 | ps_slice_hdr->u1_ref_idx_reordering_flag_l1 = 0; |
| 1188 | |
| 1189 | if (ps_slice_hdr->u1_ref_idx_reordering_flag_l1) |
| 1190 | { |
| 1191 | |
| 1192 | } |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1193 | } |
| 1194 | |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 1195 | |
| 1196 | /* Currently we do not support weighted pred */ |
| 1197 | /* ps_slice_hdr->u1_weighted_bipred_idc = 0; */ |
| 1198 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1199 | if ((ps_pps->i1_weighted_pred_flag && |
| 1200 | (ps_proc->i4_slice_type == PSLICE || ps_proc->i4_slice_type == SPSLICE)) || |
Martin Storsjo | 4adb9f4 | 2015-06-08 15:07:59 +0300 | [diff] [blame] | 1201 | (ps_proc->i4_slice_type == BSLICE && ps_pps->i1_weighted_bipred_idc == 1)) |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1202 | { |
| 1203 | /* TODO_LATER: Currently there is no support for weighted prediction. |
| 1204 | This needs to be updated when the support is added */ |
| 1205 | } |
| 1206 | |
| 1207 | if (ps_slice_hdr->i1_nal_unit_idc != 0) |
| 1208 | { |
| 1209 | if (ps_slice_hdr->i1_nal_unit_type == 5) |
| 1210 | { |
| 1211 | /* no_output_of_prior_pics_flag */ |
| 1212 | ps_slice_hdr->u1_no_output_of_prior_pics_flag = 0; |
| 1213 | |
| 1214 | /* long_term_reference_flag */ |
| 1215 | ps_slice_hdr->u1_long_term_reference_flag = 0; |
| 1216 | } |
| 1217 | else |
| 1218 | { |
| 1219 | /* adaptive_ref_pic_marking_mode_flag */ |
| 1220 | ps_slice_hdr->u1_adaptive_ref_pic_marking_mode_flag = 0; |
| 1221 | |
| 1222 | if (ps_slice_hdr->u1_adaptive_ref_pic_marking_mode_flag) |
| 1223 | { |
| 1224 | /* TODO: if the reference picture marking mode is adaptive |
| 1225 | add these fields in the bit-stream */ |
| 1226 | } |
| 1227 | } |
| 1228 | } |
| 1229 | |
| 1230 | /* entropy coding mode flag */ |
| 1231 | ps_slice_hdr->u1_entropy_coding_mode_flag = ps_entropy->u1_entropy_coding_mode_flag; |
| 1232 | |
| 1233 | if (ps_slice_hdr->u1_entropy_coding_mode_flag && ps_proc->i4_slice_type != ISLICE && |
| 1234 | ps_proc->i4_slice_type != SISLICE) |
| 1235 | { |
| 1236 | /* cabac_init_idc */ |
| 1237 | } |
| 1238 | |
| 1239 | /* slice qp */ |
| 1240 | ps_slice_hdr->i1_slice_qp = ps_proc->u4_frame_qp; |
| 1241 | |
| 1242 | if (ps_proc->i4_slice_type == SPSLICE || ps_proc->i4_slice_type == SISLICE) |
| 1243 | { |
| 1244 | if (ps_proc->i4_slice_type == SPSLICE) |
| 1245 | { |
| 1246 | /* sp_for_switch_flag */ |
| 1247 | } |
| 1248 | /* slice_qs_delta */ |
| 1249 | } |
| 1250 | |
| 1251 | if (ps_pps->i1_deblocking_filter_control_present_flag) |
| 1252 | { |
| 1253 | /* disable_deblocking_filter_idc */ |
| 1254 | ps_slice_hdr->u1_disable_deblocking_filter_idc = ps_proc->u4_disable_deblock_level; |
| 1255 | |
| 1256 | if (ps_slice_hdr->u1_disable_deblocking_filter_idc != 1) |
| 1257 | { |
| 1258 | /* slice_alpha_c0_offset_div2 */ |
| 1259 | ps_slice_hdr->i1_slice_alpha_c0_offset_div2 = 0; |
| 1260 | |
| 1261 | /* slice_beta_offset_div2 */ |
| 1262 | ps_slice_hdr->i1_slice_beta_offset_div2 = 0; |
| 1263 | } |
| 1264 | } |
| 1265 | ps_slice_hdr->u1_num_slice_groups_minus1 = 0; |
| 1266 | if(ps_slice_hdr->u1_num_slice_groups_minus1 > 0 && |
| 1267 | ps_pps->u1_slice_group_map_type >= 3 && |
| 1268 | ps_pps->u1_slice_group_map_type <= 5) |
| 1269 | { |
| 1270 | /* slice_group_change_cycle */ |
| 1271 | /* TODO_LATER: Currently the number of slice groups minus 1 is 0. |
| 1272 | * If this is not the case, we have to add Slice group map type to the bit stream */ |
| 1273 | } |
| 1274 | |
Harinarayanan K K | 3749f6f | 2015-06-18 16:03:38 +0530 | [diff] [blame] | 1275 | ps_slice_hdr->i1_cabac_init_idc = CABAC_INIT_IDC; |
| 1276 | |
Hamsalekha S | 8d3d303 | 2015-03-13 21:24:58 +0530 | [diff] [blame] | 1277 | return IH264E_SUCCESS; |
| 1278 | } |
| 1279 | |
| 1280 | /** |
| 1281 | ****************************************************************************** |
| 1282 | * |
| 1283 | * @brief inserts FILLER Nal Unit. |
| 1284 | * |
| 1285 | * @par Description |
| 1286 | * In constant bit rate rc mode, when the bits generated by the codec is |
| 1287 | * underflowing the target bit rate, the encoder library inserts filler nal unit. |
| 1288 | * |
| 1289 | * @param[in] ps_bitstrm |
| 1290 | * pointer to bitstream context (handle) |
| 1291 | * |
| 1292 | * @param[in] insert_fill_bytes |
| 1293 | * Number of fill bytes to be inserted |
| 1294 | * |
| 1295 | * @return success or failure error code |
| 1296 | * |
| 1297 | ****************************************************************************** |
| 1298 | */ |
| 1299 | IH264E_ERROR_T ih264e_add_filler_nal_unit(bitstrm_t *ps_bitstrm, |
| 1300 | WORD32 insert_fill_bytes) |
| 1301 | { |
| 1302 | WORD32 i4_num_words_to_fill, i4_words_filled; |
| 1303 | |
| 1304 | IH264E_ERROR_T return_status = IH264E_SUCCESS; |
| 1305 | |
| 1306 | /* Insert the NAL start code */ |
| 1307 | return_status |= ih264e_put_nal_start_code_prefix(ps_bitstrm, 1); |
| 1308 | |
| 1309 | if (ps_bitstrm->u4_strm_buf_offset + insert_fill_bytes >= ps_bitstrm->u4_max_strm_size) |
| 1310 | { |
| 1311 | return (IH264E_BITSTREAM_BUFFER_OVERFLOW); |
| 1312 | } |
| 1313 | |
| 1314 | /* Insert Nal Unit Header */ |
| 1315 | PUT_BITS(ps_bitstrm, NAL_FILLER_FIRST_BYTE, 8, return_status, "filler_header"); |
| 1316 | |
| 1317 | PUT_BITS(ps_bitstrm, 0xFFFFFF, 24, return_status, "fill bytes"); |
| 1318 | |
| 1319 | /* Initializing Variables */ |
| 1320 | i4_words_filled = 1; |
| 1321 | |
| 1322 | /****************************************************/ |
| 1323 | /* Flooring the number of bytes for be stuffed to */ |
| 1324 | /* WORD unit */ |
| 1325 | /****************************************************/ |
| 1326 | i4_num_words_to_fill = (insert_fill_bytes >> 2); |
| 1327 | |
| 1328 | /****************************************************/ |
| 1329 | /* Reducing already 4 bytes filled. In case stuffing*/ |
| 1330 | /* is <= 4 bytes, we are actually not stuffing */ |
| 1331 | /* anything */ |
| 1332 | /****************************************************/ |
| 1333 | i4_num_words_to_fill -= i4_words_filled; |
| 1334 | |
| 1335 | while (i4_num_words_to_fill > 0) |
| 1336 | { |
| 1337 | /* Insert Nal Unit Header */ |
| 1338 | PUT_BITS(ps_bitstrm, 0xFFFFFFFF, 32, return_status, "fill bytes"); |
| 1339 | |
| 1340 | i4_num_words_to_fill-- ; |
| 1341 | } |
| 1342 | |
| 1343 | return_status |= ih264e_put_rbsp_trailing_bits(ps_bitstrm); |
| 1344 | |
| 1345 | return return_status; |
| 1346 | } |
| 1347 | |