Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +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 | #include <string.h> |
Harish Mahendrakar | c811354 | 2015-12-31 19:06:30 +0530 | [diff] [blame] | 21 | #include <cutils/log.h> |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 22 | |
| 23 | #include "iv_datatypedef.h" |
| 24 | #include "iv.h" |
| 25 | #include "ivd.h" |
| 26 | #include "impeg2_macros.h" |
| 27 | #include "impeg2_buf_mgr.h" |
| 28 | #include "impeg2_disp_mgr.h" |
| 29 | #include "impeg2_defs.h" |
| 30 | #include "impeg2_inter_pred.h" |
| 31 | #include "impeg2_idct.h" |
| 32 | #include "impeg2_format_conv.h" |
| 33 | #include "impeg2_mem_func.h" |
| 34 | #include "impeg2_platform_macros.h" |
| 35 | #include "ithread.h" |
| 36 | #include "impeg2_job_queue.h" |
| 37 | |
| 38 | #include "impeg2d.h" |
| 39 | #include "impeg2d_bitstream.h" |
| 40 | #include "impeg2d_api.h" |
| 41 | #include "impeg2d_structs.h" |
| 42 | #include "impeg2_globals.h" |
| 43 | #include "impeg2d_pic_proc.h" |
Harish Mahendrakar | 8520690 | 2015-08-13 10:59:13 +0530 | [diff] [blame] | 44 | #include "impeg2d_deinterlace.h" |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 45 | |
| 46 | |
Venkatarama Avadhani | 4dbcab9 | 2017-02-13 17:03:04 +0530 | [diff] [blame] | 47 | /***************************************************************************** |
| 48 | * MPEG2 Constants for Parse Check |
| 49 | ******************************************************************************/ |
| 50 | #define MPEG2_MAX_FRAME_RATE_CODE 8 |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 51 | |
| 52 | /****************************************************************************** |
| 53 | * Function Name : impeg2d_next_start_code |
| 54 | * |
| 55 | * Description : Peek for next_start_code from the stream_t. |
| 56 | * |
| 57 | * Arguments : |
| 58 | * dec : Decoder Context |
| 59 | * |
| 60 | * Values Returned : None |
| 61 | ******************************************************************************/ |
| 62 | void impeg2d_next_start_code(dec_state_t *ps_dec) |
| 63 | { |
| 64 | stream_t *ps_stream; |
| 65 | ps_stream = &ps_dec->s_bit_stream; |
| 66 | impeg2d_bit_stream_flush_to_byte_boundary(ps_stream); |
| 67 | |
| 68 | while ((impeg2d_bit_stream_nxt(ps_stream,START_CODE_PREFIX_LEN) != START_CODE_PREFIX) |
| 69 | && (ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset)) |
| 70 | { |
| 71 | impeg2d_bit_stream_get(ps_stream,8); |
| 72 | } |
| 73 | return; |
| 74 | } |
| 75 | /****************************************************************************** |
| 76 | * Function Name : impeg2d_next_code |
| 77 | * |
| 78 | * Description : Peek for next_start_code from the stream_t. |
| 79 | * |
| 80 | * Arguments : |
| 81 | * dec : Decoder Context |
| 82 | * |
| 83 | * Values Returned : None |
| 84 | ******************************************************************************/ |
| 85 | void impeg2d_next_code(dec_state_t *ps_dec, UWORD32 u4_start_code_val) |
| 86 | { |
| 87 | stream_t *ps_stream; |
| 88 | ps_stream = &ps_dec->s_bit_stream; |
| 89 | impeg2d_bit_stream_flush_to_byte_boundary(ps_stream); |
| 90 | |
Harish Mahendrakar | 8c743b5 | 2015-12-30 17:38:27 +0530 | [diff] [blame] | 91 | while ((impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN) != u4_start_code_val) && |
| 92 | (ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset)) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 93 | { |
| 94 | |
| 95 | if (impeg2d_bit_stream_get(ps_stream,8) != 0) |
| 96 | { |
| 97 | /* Ignore stuffing bit errors. */ |
| 98 | } |
| 99 | |
| 100 | } |
| 101 | return; |
| 102 | } |
| 103 | /****************************************************************************** |
| 104 | * Function Name : impeg2d_peek_next_start_code |
| 105 | * |
| 106 | * Description : Peek for next_start_code from the stream_t. |
| 107 | * |
| 108 | * Arguments : |
| 109 | * dec : Decoder Context |
| 110 | * |
| 111 | * Values Returned : None |
| 112 | ******************************************************************************/ |
| 113 | void impeg2d_peek_next_start_code(dec_state_t *ps_dec) |
| 114 | { |
| 115 | stream_t *ps_stream; |
| 116 | ps_stream = &ps_dec->s_bit_stream; |
| 117 | impeg2d_bit_stream_flush_to_byte_boundary(ps_stream); |
| 118 | |
| 119 | while ((impeg2d_bit_stream_nxt(ps_stream,START_CODE_PREFIX_LEN) != START_CODE_PREFIX) |
Harish Mahendrakar | 8c743b5 | 2015-12-30 17:38:27 +0530 | [diff] [blame] | 120 | && (ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset)) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 121 | { |
| 122 | impeg2d_bit_stream_get(ps_stream,8); |
| 123 | } |
| 124 | return; |
| 125 | } |
| 126 | /****************************************************************************** |
| 127 | * |
| 128 | * Function Name : impeg2d_dec_seq_hdr |
| 129 | * |
| 130 | * Description : Decodes Sequence header information |
| 131 | * |
| 132 | * Arguments : |
| 133 | * dec : Decoder Context |
| 134 | * |
| 135 | * Values Returned : None |
| 136 | ******************************************************************************/ |
| 137 | IMPEG2D_ERROR_CODES_T impeg2d_dec_seq_hdr(dec_state_t *ps_dec) |
| 138 | { |
| 139 | stream_t *ps_stream; |
| 140 | ps_stream = &ps_dec->s_bit_stream; |
| 141 | UWORD16 u2_height; |
| 142 | UWORD16 u2_width; |
| 143 | |
| 144 | if (impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN) != SEQUENCE_HEADER_CODE) |
| 145 | { |
| 146 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
| 147 | return IMPEG2D_FRM_HDR_START_CODE_NOT_FOUND; |
| 148 | |
| 149 | } |
| 150 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
| 151 | |
| 152 | u2_width = impeg2d_bit_stream_get(ps_stream,12); |
| 153 | u2_height = impeg2d_bit_stream_get(ps_stream,12); |
| 154 | |
| 155 | if ((u2_width != ps_dec->u2_horizontal_size) |
| 156 | || (u2_height != ps_dec->u2_vertical_size)) |
| 157 | { |
| 158 | if (0 == ps_dec->u2_header_done) |
| 159 | { |
| 160 | /* This is the first time we are reading the resolution */ |
| 161 | ps_dec->u2_horizontal_size = u2_width; |
| 162 | ps_dec->u2_vertical_size = u2_height; |
| 163 | if (0 == ps_dec->u4_frm_buf_stride) |
| 164 | { |
Harish Mahendrakar | 903fd2b | 2015-08-05 15:47:51 +0530 | [diff] [blame] | 165 | ps_dec->u4_frm_buf_stride = (UWORD32) (u2_width); |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 166 | } |
| 167 | } |
| 168 | else |
| 169 | { |
| 170 | if((u2_width > ps_dec->u2_create_max_width) |
| 171 | || (u2_height > ps_dec->u2_create_max_height)) |
| 172 | { |
| 173 | IMPEG2D_ERROR_CODES_T e_error = IMPEG2D_UNSUPPORTED_DIMENSIONS; |
| 174 | |
| 175 | ps_dec->u2_reinit_max_height = u2_height; |
| 176 | ps_dec->u2_reinit_max_width = u2_width; |
| 177 | |
| 178 | return e_error; |
| 179 | } |
| 180 | else |
| 181 | { |
| 182 | /* The resolution has changed */ |
| 183 | return (IMPEG2D_ERROR_CODES_T)IVD_RES_CHANGED; |
| 184 | } |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | if((ps_dec->u2_horizontal_size > ps_dec->u2_create_max_width) |
| 189 | || (ps_dec->u2_vertical_size > ps_dec->u2_create_max_height)) |
| 190 | { |
| 191 | IMPEG2D_ERROR_CODES_T e_error = IMPEG2D_UNSUPPORTED_DIMENSIONS; |
Harish Mahendrakar | cb449c9 | 2016-06-01 15:37:18 +0530 | [diff] [blame] | 192 | ps_dec->u2_reinit_max_height = ps_dec->u2_vertical_size; |
| 193 | ps_dec->u2_reinit_max_width = ps_dec->u2_horizontal_size; |
| 194 | return e_error; |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | |
| 198 | /*------------------------------------------------------------------------*/ |
| 199 | /* Flush the following as they are not being used */ |
| 200 | /* aspect_ratio_info (4 bits) */ |
| 201 | /*------------------------------------------------------------------------*/ |
| 202 | ps_dec->u2_aspect_ratio_info = impeg2d_bit_stream_get(ps_stream,4); |
| 203 | |
| 204 | /*------------------------------------------------------------------------*/ |
| 205 | /* Frame rate code(4 bits) */ |
| 206 | /*------------------------------------------------------------------------*/ |
| 207 | ps_dec->u2_frame_rate_code = impeg2d_bit_stream_get(ps_stream,4); |
Venkatarama Avadhani | 4dbcab9 | 2017-02-13 17:03:04 +0530 | [diff] [blame] | 208 | if (ps_dec->u2_frame_rate_code > MPEG2_MAX_FRAME_RATE_CODE) |
| 209 | { |
| 210 | return IMPEG2D_FRM_HDR_DECODE_ERR; |
| 211 | } |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 212 | /*------------------------------------------------------------------------*/ |
| 213 | /* Flush the following as they are not being used */ |
| 214 | /* bit_rate_value (18 bits) */ |
| 215 | /*------------------------------------------------------------------------*/ |
| 216 | impeg2d_bit_stream_flush(ps_stream,18); |
| 217 | GET_MARKER_BIT(ps_dec,ps_stream); |
| 218 | /*------------------------------------------------------------------------*/ |
| 219 | /* Flush the following as they are not being used */ |
| 220 | /* vbv_buffer_size_value(10 bits), constrained_parameter_flag (1 bit) */ |
| 221 | /*------------------------------------------------------------------------*/ |
| 222 | impeg2d_bit_stream_flush(ps_stream,11); |
| 223 | |
| 224 | /*------------------------------------------------------------------------*/ |
| 225 | /* Quantization matrix for the intra blocks */ |
| 226 | /*------------------------------------------------------------------------*/ |
| 227 | if(impeg2d_bit_stream_get_bit(ps_stream) == 1) |
| 228 | { |
| 229 | UWORD16 i; |
| 230 | for(i = 0; i < NUM_PELS_IN_BLOCK; i++) |
| 231 | { |
| 232 | ps_dec->au1_intra_quant_matrix[gau1_impeg2_inv_scan_zig_zag[i]] = (UWORD8)impeg2d_bit_stream_get(ps_stream,8); |
| 233 | } |
| 234 | |
| 235 | } |
| 236 | else |
| 237 | { |
| 238 | memcpy(ps_dec->au1_intra_quant_matrix,gau1_impeg2_intra_quant_matrix_default, |
| 239 | NUM_PELS_IN_BLOCK); |
| 240 | } |
| 241 | |
| 242 | /*------------------------------------------------------------------------*/ |
| 243 | /* Quantization matrix for the inter blocks */ |
| 244 | /*------------------------------------------------------------------------*/ |
| 245 | if(impeg2d_bit_stream_get_bit(ps_stream) == 1) |
| 246 | { |
| 247 | UWORD16 i; |
| 248 | for(i = 0; i < NUM_PELS_IN_BLOCK; i++) |
| 249 | { |
| 250 | ps_dec->au1_inter_quant_matrix[gau1_impeg2_inv_scan_zig_zag[i]] = (UWORD8)impeg2d_bit_stream_get(ps_stream,8); |
| 251 | } |
| 252 | } |
| 253 | else |
| 254 | { |
| 255 | memcpy(ps_dec->au1_inter_quant_matrix,gau1_impeg2_inter_quant_matrix_default, |
| 256 | NUM_PELS_IN_BLOCK); |
| 257 | } |
| 258 | impeg2d_next_start_code(ps_dec); |
| 259 | |
| 260 | return (IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE; |
| 261 | } |
| 262 | |
| 263 | /****************************************************************************** |
| 264 | * |
| 265 | * Function Name : impeg2d_dec_seq_ext |
| 266 | * |
| 267 | * Description : Gets additional sequence data. |
| 268 | * |
| 269 | * Arguments : |
| 270 | * dec : Decoder Context |
| 271 | * |
| 272 | * Values Returned : None |
| 273 | ******************************************************************************/ |
| 274 | IMPEG2D_ERROR_CODES_T impeg2d_dec_seq_ext(dec_state_t *ps_dec) |
| 275 | { |
| 276 | stream_t *ps_stream; |
| 277 | |
| 278 | ps_stream = &ps_dec->s_bit_stream; |
| 279 | |
| 280 | if (impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN) != EXTENSION_START_CODE) |
| 281 | { |
| 282 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
| 283 | return IMPEG2D_FRM_HDR_START_CODE_NOT_FOUND; |
| 284 | |
| 285 | } |
| 286 | /* Flush the extension start code */ |
| 287 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
| 288 | |
| 289 | /* Flush extension start code identifier */ |
| 290 | impeg2d_bit_stream_flush(ps_stream,4); |
| 291 | |
| 292 | /*----------------------------------------------------------------------*/ |
| 293 | /* Profile and Level information */ |
| 294 | /*----------------------------------------------------------------------*/ |
| 295 | { |
| 296 | UWORD32 u4_esc_bit, u4_profile, u4_level; |
| 297 | |
| 298 | /* Read the profile and level information */ |
| 299 | /* check_profile_and_level: Table 8-1 */ |
| 300 | /* [7:7] 1 Escape bit */ |
| 301 | /* [6:4] 3 Profile identification */ |
| 302 | /* [3:0] 4 Level identification */ |
| 303 | |
| 304 | u4_esc_bit = impeg2d_bit_stream_get_bit(ps_stream); |
| 305 | u4_profile = impeg2d_bit_stream_get(ps_stream,3); |
| 306 | u4_level = impeg2d_bit_stream_get(ps_stream,4); |
| 307 | UNUSED(u4_profile); |
| 308 | UNUSED(u4_level); |
| 309 | /* |
| 310 | if( escBit == 1 || |
| 311 | profile < MPEG2_MAIN_PROFILE || |
| 312 | level < MPEG2_MAIN_LEVEL) |
| 313 | */ |
| 314 | if (1 == u4_esc_bit) |
| 315 | { |
| 316 | return IMPEG2D_PROF_LEVEL_NOT_SUPPORTED; |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | ps_dec->u2_progressive_sequence = impeg2d_bit_stream_get_bit(ps_stream); |
| 321 | |
| 322 | /* Read the chrominance format */ |
| 323 | if(impeg2d_bit_stream_get(ps_stream,2) != 0x1) |
| 324 | return IMPEG2D_CHROMA_FMT_NOT_SUP; |
| 325 | |
| 326 | /* Read the 2 most significant bits from horizontal_size */ |
| 327 | ps_dec->u2_horizontal_size += (impeg2d_bit_stream_get(ps_stream,2) << 12); |
| 328 | |
| 329 | /* Read the 2 most significant bits from vertical_size */ |
| 330 | ps_dec->u2_vertical_size += (impeg2d_bit_stream_get(ps_stream,2) << 12); |
| 331 | |
| 332 | /*-----------------------------------------------------------------------*/ |
| 333 | /* Flush the following as they are not used now */ |
| 334 | /* bit_rate_extension 12 */ |
| 335 | /* marker_bit 1 */ |
| 336 | /* vbv_buffer_size_extension 8 */ |
| 337 | /* low_delay 1 */ |
| 338 | /*-----------------------------------------------------------------------*/ |
| 339 | impeg2d_bit_stream_flush(ps_stream,12); |
| 340 | GET_MARKER_BIT(ps_dec,ps_stream); |
| 341 | impeg2d_bit_stream_flush(ps_stream,9); |
| 342 | /*-----------------------------------------------------------------------*/ |
| 343 | /* frame_rate_extension_n 2 */ |
| 344 | /* frame_rate_extension_d 5 */ |
| 345 | /*-----------------------------------------------------------------------*/ |
| 346 | ps_dec->u2_frame_rate_extension_n = impeg2d_bit_stream_get(ps_stream,2); |
| 347 | ps_dec->u2_frame_rate_extension_d = impeg2d_bit_stream_get(ps_stream,5); |
| 348 | |
| 349 | return (IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE; |
| 350 | } |
| 351 | |
| 352 | /******************************************************************************* |
| 353 | * |
| 354 | * Function Name : impeg2d_dec_seq_disp_ext |
| 355 | * |
| 356 | * Description : This function is eqvt to sequence_display_extension() of |
| 357 | * standard. It flushes data present as it is not being used |
| 358 | * |
| 359 | * Arguments : |
| 360 | * dec : Decoder Context |
| 361 | * |
| 362 | * Values Returned : None |
| 363 | ******************************************************************************/ |
| 364 | void impeg2d_dec_seq_disp_ext(dec_state_t *ps_dec) |
| 365 | { |
| 366 | stream_t *ps_stream; |
| 367 | ps_stream = &ps_dec->s_bit_stream; |
| 368 | |
| 369 | /* |
| 370 | sequence_display_extension() |
| 371 | { |
| 372 | extension_start_code_identifier 4 |
| 373 | video_format 3 |
| 374 | colour_description 1 |
| 375 | if (colour_description) |
| 376 | { |
| 377 | colour_primaries 8 |
| 378 | transfer_characteristics 8 |
| 379 | matrix_coefficients 8 |
| 380 | } |
| 381 | display_horizontal_size 14 |
| 382 | marker_bit 1 |
| 383 | display_vertical_size 14 |
| 384 | next_start_code() |
| 385 | } |
| 386 | */ |
| 387 | |
| 388 | impeg2d_bit_stream_get(ps_stream,7); |
| 389 | if (impeg2d_bit_stream_get_bit(ps_stream) == 1) |
| 390 | { |
| 391 | impeg2d_bit_stream_get(ps_stream,24); |
| 392 | } |
| 393 | |
| 394 | /* display_horizontal_size and display_vertical_size */ |
| 395 | ps_dec->u2_display_horizontal_size = impeg2d_bit_stream_get(ps_stream,14);; |
| 396 | GET_MARKER_BIT(ps_dec,ps_stream); |
| 397 | ps_dec->u2_display_vertical_size = impeg2d_bit_stream_get(ps_stream,14); |
| 398 | |
| 399 | impeg2d_next_start_code(ps_dec); |
| 400 | } |
| 401 | |
| 402 | |
| 403 | /******************************************************************************* |
| 404 | * |
| 405 | * Function Name : impeg2d_dec_seq_scale_ext |
| 406 | * |
| 407 | * Description : This function is eqvt to sequence_scalable_extension() of |
| 408 | * standard. |
| 409 | * |
| 410 | * Arguments : Decoder context |
| 411 | * |
| 412 | * Values Returned : None |
| 413 | *******************************************************************************/ |
| 414 | IMPEG2D_ERROR_CODES_T impeg2d_dec_seq_scale_ext(dec_state_t *ps_dec) |
| 415 | { |
| 416 | UNUSED(ps_dec); |
| 417 | return IMPEG2D_SCALABILITIY_NOT_SUPPORTED; |
| 418 | } |
| 419 | |
| 420 | /******************************************************************************* |
| 421 | * |
| 422 | * Function Name : impeg2d_dec_quant_matrix_ext |
| 423 | * |
| 424 | * Description : Gets Intra and NonIntra quantizer matrix from the stream. |
| 425 | * |
| 426 | * Arguments : Decoder context |
| 427 | * |
| 428 | * Values Returned : None |
| 429 | *******************************************************************************/ |
| 430 | void impeg2d_dec_quant_matrix_ext(dec_state_t *ps_dec) |
| 431 | { |
| 432 | stream_t *ps_stream; |
| 433 | |
| 434 | ps_stream = &ps_dec->s_bit_stream; |
| 435 | /* Flush extension_start_code_identifier */ |
| 436 | impeg2d_bit_stream_flush(ps_stream,4); |
| 437 | |
| 438 | /*------------------------------------------------------------------------*/ |
| 439 | /* Quantization matrix for the intra blocks */ |
| 440 | /*------------------------------------------------------------------------*/ |
| 441 | if(impeg2d_bit_stream_get(ps_stream,1) == 1) |
| 442 | { |
| 443 | UWORD16 i; |
| 444 | for(i = 0; i < NUM_PELS_IN_BLOCK; i++) |
| 445 | { |
| 446 | ps_dec->au1_intra_quant_matrix[gau1_impeg2_inv_scan_zig_zag[i]] = (UWORD8)impeg2d_bit_stream_get(ps_stream,8); |
| 447 | } |
| 448 | |
| 449 | } |
| 450 | |
| 451 | |
| 452 | /*------------------------------------------------------------------------*/ |
| 453 | /* Quantization matrix for the inter blocks */ |
| 454 | /*------------------------------------------------------------------------*/ |
| 455 | if(impeg2d_bit_stream_get(ps_stream,1) == 1) |
| 456 | { |
| 457 | UWORD16 i; |
| 458 | for(i = 0; i < NUM_PELS_IN_BLOCK; i++) |
| 459 | { |
| 460 | ps_dec->au1_inter_quant_matrix[gau1_impeg2_inv_scan_zig_zag[i]] = (UWORD8)impeg2d_bit_stream_get(ps_stream,8); |
| 461 | } |
| 462 | } |
| 463 | |
| 464 | /* Note : chroma intra quantizer matrix and chroma non |
| 465 | intra quantizer matrix are not needed for 4:2:0 format */ |
| 466 | impeg2d_next_start_code(ps_dec); |
| 467 | } |
| 468 | /******************************************************************************* |
| 469 | * |
| 470 | * Function Name : impeg2d_dec_pic_disp_ext |
| 471 | * |
| 472 | * Description : This function is eqvt to picture_display_extension() of |
| 473 | * standard.The parameters are not used by decoder |
| 474 | * |
| 475 | * Arguments : Pointer to dec_state_t |
| 476 | * |
| 477 | * Values Returned : Decoder context |
| 478 | * |
| 479 | * Values Returned : None |
| 480 | *******************************************************************************/ |
| 481 | void impeg2d_dec_pic_disp_ext(dec_state_t *ps_dec) |
| 482 | { |
| 483 | WORD16 i2_number_of_frame_centre_offsets ; |
| 484 | stream_t *ps_stream; |
| 485 | |
| 486 | ps_stream = &ps_dec->s_bit_stream; |
| 487 | impeg2d_bit_stream_flush(ps_stream,4); |
| 488 | |
| 489 | if (ps_dec->u2_progressive_sequence) |
| 490 | { |
| 491 | i2_number_of_frame_centre_offsets = (ps_dec->u2_repeat_first_field) ? |
| 492 | 2 + ps_dec->u2_top_field_first : 1; |
| 493 | } |
| 494 | else |
| 495 | { |
| 496 | i2_number_of_frame_centre_offsets = |
| 497 | (ps_dec->u2_picture_structure != FRAME_PICTURE) ? |
| 498 | 1 : 2 + ps_dec->u2_repeat_first_field; |
| 499 | } |
| 500 | while(i2_number_of_frame_centre_offsets--) |
| 501 | { |
| 502 | /* frame_centre_horizontal_offset */ |
| 503 | impeg2d_bit_stream_get(ps_stream,16); |
| 504 | GET_MARKER_BIT(ps_dec,ps_stream); |
| 505 | /* frame_centre_vertical_offset */ |
| 506 | impeg2d_bit_stream_get(ps_stream,16); |
| 507 | GET_MARKER_BIT(ps_dec,ps_stream); |
| 508 | } |
| 509 | impeg2d_next_start_code(ps_dec); |
| 510 | } |
| 511 | |
| 512 | /******************************************************************************* |
| 513 | * |
| 514 | * Function Name : impeg2d_dec_itu_t_ext |
| 515 | * |
| 516 | * Description : This function is eqvt to ITU-T_extension() of |
| 517 | * standard.The parameters are not used by decoder |
| 518 | * |
| 519 | * Arguments : Decoder context |
| 520 | * |
| 521 | * Values Returned : None |
| 522 | *******************************************************************************/ |
| 523 | void impeg2d_dec_itu_t_ext(dec_state_t *ps_dec) |
| 524 | { |
| 525 | impeg2d_bit_stream_flush(&ps_dec->s_bit_stream,EXT_ID_LEN); |
| 526 | impeg2d_next_start_code(ps_dec); |
| 527 | } |
| 528 | |
| 529 | /******************************************************************************* |
| 530 | * Function Name : impeg2d_dec_copyright_ext |
| 531 | * |
| 532 | * Description : This function is eqvt to copyright_extension() of |
| 533 | * standard. The parameters are not used by decoder |
| 534 | * |
| 535 | * Arguments : Decoder context |
| 536 | * |
| 537 | * Values Returned : None |
| 538 | *******************************************************************************/ |
| 539 | |
| 540 | |
| 541 | void impeg2d_dec_copyright_ext(dec_state_t *ps_dec) |
| 542 | { |
| 543 | UWORD32 u4_bits_to_flush; |
| 544 | |
| 545 | u4_bits_to_flush = COPYRIGHT_EXTENSION_LEN; |
| 546 | |
| 547 | while(u4_bits_to_flush >= 32 ) |
| 548 | { |
| 549 | impeg2d_bit_stream_flush(&ps_dec->s_bit_stream,32); |
| 550 | u4_bits_to_flush = u4_bits_to_flush - 32; |
| 551 | } |
| 552 | |
| 553 | if(u4_bits_to_flush > 0) |
| 554 | { |
| 555 | impeg2d_bit_stream_flush(&ps_dec->s_bit_stream,u4_bits_to_flush); |
| 556 | } |
| 557 | |
| 558 | |
| 559 | impeg2d_next_start_code(ps_dec); |
| 560 | } |
| 561 | /******************************************************************************* |
| 562 | * Function Name : impeg2d_dec_cam_param_ext |
| 563 | * |
| 564 | * Description : This function is eqvt to camera_parameters_extension() of |
| 565 | * standard. The parameters are not used by decoder |
| 566 | * |
| 567 | * Arguments : Decoder context |
| 568 | * |
| 569 | * Values Returned : None |
| 570 | *******************************************************************************/ |
| 571 | |
| 572 | |
| 573 | void impeg2d_dec_cam_param_ext(dec_state_t *ps_dec) |
| 574 | { |
| 575 | |
| 576 | UWORD32 u4_bits_to_flush; |
| 577 | |
| 578 | u4_bits_to_flush = CAMERA_PARAMETER_EXTENSION_LEN; |
| 579 | |
| 580 | while(u4_bits_to_flush >= 32 ) |
| 581 | { |
| 582 | impeg2d_bit_stream_flush(&ps_dec->s_bit_stream,32); |
| 583 | u4_bits_to_flush = u4_bits_to_flush - 32; |
| 584 | } |
| 585 | |
| 586 | if(u4_bits_to_flush > 0) |
| 587 | { |
| 588 | impeg2d_bit_stream_flush(&ps_dec->s_bit_stream,u4_bits_to_flush); |
| 589 | } |
| 590 | |
| 591 | impeg2d_next_start_code(ps_dec); |
| 592 | } |
| 593 | |
| 594 | /******************************************************************************* |
| 595 | * |
| 596 | * Function Name : impeg2d_dec_grp_of_pic_hdr |
| 597 | * |
| 598 | * Description : Gets information at the GOP level. |
| 599 | * |
| 600 | * Arguments : Decoder context |
| 601 | * |
| 602 | * Values Returned : None |
| 603 | *******************************************************************************/ |
| 604 | |
| 605 | |
| 606 | void impeg2d_dec_grp_of_pic_hdr(dec_state_t *ps_dec) |
| 607 | { |
| 608 | |
| 609 | UWORD32 u4_bits_to_flush; |
| 610 | |
| 611 | u4_bits_to_flush = GROUP_OF_PICTURE_LEN; |
| 612 | |
| 613 | while(u4_bits_to_flush >= 32 ) |
| 614 | { |
| 615 | impeg2d_bit_stream_flush(&ps_dec->s_bit_stream,32); |
| 616 | u4_bits_to_flush = u4_bits_to_flush - 32; |
| 617 | } |
| 618 | |
| 619 | if(u4_bits_to_flush > 0) |
| 620 | { |
| 621 | impeg2d_bit_stream_flush(&ps_dec->s_bit_stream,u4_bits_to_flush); |
| 622 | } |
| 623 | |
| 624 | } |
| 625 | |
| 626 | |
| 627 | /******************************************************************************* |
| 628 | * |
| 629 | * Function Name : impeg2d_dec_pic_hdr |
| 630 | * |
| 631 | * Description : Gets the picture header information. |
| 632 | * |
| 633 | * Arguments : Decoder context |
| 634 | * |
| 635 | * Values Returned : None |
| 636 | *******************************************************************************/ |
| 637 | IMPEG2D_ERROR_CODES_T impeg2d_dec_pic_hdr(dec_state_t *ps_dec) |
| 638 | { |
| 639 | stream_t *ps_stream; |
| 640 | ps_stream = &ps_dec->s_bit_stream; |
| 641 | |
| 642 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
| 643 | /* Flush temporal reference */ |
| 644 | impeg2d_bit_stream_get(ps_stream,10); |
| 645 | |
| 646 | /* Picture type */ |
| 647 | ps_dec->e_pic_type = (e_pic_type_t)impeg2d_bit_stream_get(ps_stream,3); |
| 648 | if((ps_dec->e_pic_type < I_PIC) || (ps_dec->e_pic_type > D_PIC)) |
| 649 | { |
| 650 | impeg2d_next_code(ps_dec, PICTURE_START_CODE); |
| 651 | return IMPEG2D_INVALID_PIC_TYPE; |
| 652 | } |
| 653 | |
| 654 | /* Flush vbv_delay */ |
| 655 | impeg2d_bit_stream_get(ps_stream,16); |
| 656 | |
| 657 | if(ps_dec->e_pic_type == P_PIC || ps_dec->e_pic_type == B_PIC) |
| 658 | { |
| 659 | ps_dec->u2_full_pel_forw_vector = impeg2d_bit_stream_get_bit(ps_stream); |
| 660 | ps_dec->u2_forw_f_code = impeg2d_bit_stream_get(ps_stream,3); |
| 661 | } |
| 662 | if(ps_dec->e_pic_type == B_PIC) |
| 663 | { |
| 664 | ps_dec->u2_full_pel_back_vector = impeg2d_bit_stream_get_bit(ps_stream); |
| 665 | ps_dec->u2_back_f_code = impeg2d_bit_stream_get(ps_stream,3); |
| 666 | } |
| 667 | |
| 668 | if(ps_dec->u2_is_mpeg2 == 0) |
| 669 | { |
| 670 | ps_dec->au2_f_code[0][0] = ps_dec->au2_f_code[0][1] = ps_dec->u2_forw_f_code; |
| 671 | ps_dec->au2_f_code[1][0] = ps_dec->au2_f_code[1][1] = ps_dec->u2_back_f_code; |
| 672 | } |
| 673 | |
| 674 | /*-----------------------------------------------------------------------*/ |
| 675 | /* Flush the extra bit value */ |
| 676 | /* */ |
| 677 | /* while(impeg2d_bit_stream_nxt() == '1') */ |
| 678 | /* { */ |
| 679 | /* extra_bit_picture 1 */ |
| 680 | /* extra_information_picture 8 */ |
| 681 | /* } */ |
| 682 | /* extra_bit_picture 1 */ |
| 683 | /*-----------------------------------------------------------------------*/ |
Harish Mahendrakar | 8c743b5 | 2015-12-30 17:38:27 +0530 | [diff] [blame] | 684 | while (impeg2d_bit_stream_nxt(ps_stream,1) == 1 && |
| 685 | ps_stream->u4_offset < ps_stream->u4_max_offset) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 686 | { |
| 687 | impeg2d_bit_stream_get(ps_stream,9); |
| 688 | } |
| 689 | impeg2d_bit_stream_get_bit(ps_stream); |
| 690 | impeg2d_next_start_code(ps_dec); |
| 691 | |
| 692 | return (IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE; |
| 693 | } |
| 694 | |
| 695 | |
| 696 | /******************************************************************************* |
| 697 | * |
| 698 | * Function Name : impeg2d_dec_pic_coding_ext |
| 699 | * |
| 700 | * Description : Reads more picture level parameters |
| 701 | * |
| 702 | * Arguments : |
| 703 | * dec : Decoder context |
| 704 | * |
| 705 | * Values Returned : None |
| 706 | *******************************************************************************/ |
| 707 | void impeg2d_dec_pic_coding_ext(dec_state_t *ps_dec) |
| 708 | { |
| 709 | stream_t *ps_stream; |
| 710 | |
| 711 | ps_stream = &ps_dec->s_bit_stream; |
| 712 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
| 713 | /* extension code identifier */ |
| 714 | impeg2d_bit_stream_get(ps_stream,4); |
| 715 | |
| 716 | ps_dec->au2_f_code[0][0] = impeg2d_bit_stream_get(ps_stream,4); |
| 717 | ps_dec->au2_f_code[0][1] = impeg2d_bit_stream_get(ps_stream,4); |
| 718 | ps_dec->au2_f_code[1][0] = impeg2d_bit_stream_get(ps_stream,4); |
| 719 | ps_dec->au2_f_code[1][1] = impeg2d_bit_stream_get(ps_stream,4); |
| 720 | ps_dec->u2_intra_dc_precision = impeg2d_bit_stream_get(ps_stream,2); |
| 721 | ps_dec->u2_picture_structure = impeg2d_bit_stream_get(ps_stream,2); |
| 722 | ps_dec->u2_top_field_first = impeg2d_bit_stream_get_bit(ps_stream); |
| 723 | ps_dec->u2_frame_pred_frame_dct = impeg2d_bit_stream_get_bit(ps_stream); |
| 724 | ps_dec->u2_concealment_motion_vectors = impeg2d_bit_stream_get_bit(ps_stream); |
| 725 | ps_dec->u2_q_scale_type = impeg2d_bit_stream_get_bit(ps_stream); |
| 726 | ps_dec->u2_intra_vlc_format = impeg2d_bit_stream_get_bit(ps_stream); |
| 727 | ps_dec->u2_alternate_scan = impeg2d_bit_stream_get_bit(ps_stream); |
| 728 | ps_dec->u2_repeat_first_field = impeg2d_bit_stream_get_bit(ps_stream); |
| 729 | /* Flush chroma_420_type */ |
| 730 | impeg2d_bit_stream_get_bit(ps_stream); |
| 731 | |
| 732 | ps_dec->u2_progressive_frame = impeg2d_bit_stream_get_bit(ps_stream); |
| 733 | if (impeg2d_bit_stream_get_bit(ps_stream)) |
| 734 | { |
| 735 | /* Flush v_axis, field_sequence, burst_amplitude, sub_carrier_phase */ |
| 736 | impeg2d_bit_stream_flush(ps_stream,20); |
| 737 | } |
| 738 | impeg2d_next_start_code(ps_dec); |
| 739 | |
| 740 | |
| 741 | if(VERTICAL_SCAN == ps_dec->u2_alternate_scan) |
| 742 | { |
| 743 | ps_dec->pu1_inv_scan_matrix = (UWORD8 *)gau1_impeg2_inv_scan_vertical; |
| 744 | } |
| 745 | else |
| 746 | { |
| 747 | ps_dec->pu1_inv_scan_matrix = (UWORD8 *)gau1_impeg2_inv_scan_zig_zag; |
| 748 | } |
| 749 | } |
| 750 | |
| 751 | /******************************************************************************* |
| 752 | * |
| 753 | * Function Name : impeg2d_dec_slice |
| 754 | * |
| 755 | * Description : Reads Slice level parameters and calls functions that |
| 756 | * decode individual MBs of slice |
| 757 | * |
| 758 | * Arguments : |
| 759 | * dec : Decoder context |
| 760 | * |
| 761 | * Values Returned : None |
| 762 | *******************************************************************************/ |
| 763 | IMPEG2D_ERROR_CODES_T impeg2d_dec_slice(dec_state_t *ps_dec) |
| 764 | { |
| 765 | stream_t *ps_stream; |
| 766 | UWORD32 u4_slice_vertical_position; |
| 767 | UWORD32 u4_slice_vertical_position_extension; |
| 768 | IMPEG2D_ERROR_CODES_T e_error; |
| 769 | |
| 770 | ps_stream = &ps_dec->s_bit_stream; |
| 771 | |
| 772 | /*------------------------------------------------------------------------*/ |
| 773 | /* All the profiles supported require restricted slice structure. Hence */ |
| 774 | /* there is no need to store slice_vertical_position. Note that max */ |
| 775 | /* height supported does not exceed 2800 and scalablity is not supported */ |
| 776 | /*------------------------------------------------------------------------*/ |
| 777 | |
| 778 | /* Remove the slice start code */ |
| 779 | impeg2d_bit_stream_flush(ps_stream,START_CODE_PREFIX_LEN); |
| 780 | u4_slice_vertical_position = impeg2d_bit_stream_get(ps_stream, 8); |
| 781 | if(u4_slice_vertical_position > 2800) |
| 782 | { |
| 783 | u4_slice_vertical_position_extension = impeg2d_bit_stream_get(ps_stream, 3); |
| 784 | u4_slice_vertical_position += (u4_slice_vertical_position_extension << 7); |
| 785 | } |
| 786 | |
| 787 | if((u4_slice_vertical_position > ps_dec->u2_num_vert_mb) || |
| 788 | (u4_slice_vertical_position == 0)) |
| 789 | { |
| 790 | return IMPEG2D_INVALID_VERT_SIZE; |
| 791 | } |
| 792 | |
| 793 | // change the mb_y to point to slice_vertical_position |
| 794 | u4_slice_vertical_position--; |
| 795 | if (ps_dec->u2_mb_y != u4_slice_vertical_position) |
| 796 | { |
| 797 | ps_dec->u2_mb_y = u4_slice_vertical_position; |
| 798 | ps_dec->u2_mb_x = 0; |
| 799 | } |
| 800 | ps_dec->u2_first_mb = 1; |
| 801 | |
| 802 | /*------------------------------------------------------------------------*/ |
| 803 | /* Quant scale code decoding */ |
| 804 | /*------------------------------------------------------------------------*/ |
| 805 | { |
| 806 | UWORD16 u2_quant_scale_code; |
| 807 | u2_quant_scale_code = impeg2d_bit_stream_get(ps_stream,5); |
| 808 | ps_dec->u1_quant_scale = (ps_dec->u2_q_scale_type) ? |
| 809 | gau1_impeg2_non_linear_quant_scale[u2_quant_scale_code] : (u2_quant_scale_code << 1); |
| 810 | } |
| 811 | |
| 812 | if (impeg2d_bit_stream_nxt(ps_stream,1) == 1) |
| 813 | { |
| 814 | impeg2d_bit_stream_flush(ps_stream,9); |
| 815 | /* Flush extra bit information */ |
Harish Mahendrakar | 8c743b5 | 2015-12-30 17:38:27 +0530 | [diff] [blame] | 816 | while (impeg2d_bit_stream_nxt(ps_stream,1) == 1 && |
| 817 | ps_stream->u4_offset < ps_stream->u4_max_offset) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 818 | { |
| 819 | impeg2d_bit_stream_flush(ps_stream,9); |
| 820 | } |
| 821 | } |
| 822 | impeg2d_bit_stream_get_bit(ps_stream); |
| 823 | |
| 824 | /* Reset the DC predictors to reset values given in Table 7.2 at the start*/ |
| 825 | /* of slice data */ |
| 826 | ps_dec->u2_def_dc_pred[Y_LUMA] = 128 << ps_dec->u2_intra_dc_precision; |
| 827 | ps_dec->u2_def_dc_pred[U_CHROMA] = 128 << ps_dec->u2_intra_dc_precision; |
| 828 | ps_dec->u2_def_dc_pred[V_CHROMA] = 128 << ps_dec->u2_intra_dc_precision; |
| 829 | /*------------------------------------------------------------------------*/ |
| 830 | /* dec->DecMBsinSlice() implements the following psuedo code from standard*/ |
| 831 | /* do */ |
| 832 | /* { */ |
| 833 | /* macroblock() */ |
| 834 | /* } while (impeg2d_bit_stream_nxt() != '000 0000 0000 0000 0000 0000') */ |
| 835 | /*------------------------------------------------------------------------*/ |
| 836 | |
| 837 | e_error = ps_dec->pf_decode_slice(ps_dec); |
| 838 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 839 | { |
| 840 | return e_error; |
| 841 | } |
| 842 | |
| 843 | /* Check for the MBy index instead of number of MBs left, because the |
| 844 | * number of MBs left in case of multi-thread decode is the number of MBs |
| 845 | * in that row only |
| 846 | */ |
| 847 | if(ps_dec->u2_mb_y < ps_dec->u2_num_vert_mb) |
| 848 | impeg2d_next_start_code(ps_dec); |
| 849 | |
| 850 | return (IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE; |
| 851 | } |
| 852 | |
| 853 | void impeg2d_dec_pic_data_thread(dec_state_t *ps_dec) |
| 854 | { |
| 855 | WORD32 i4_continue_decode; |
| 856 | |
| 857 | WORD32 i4_cur_row, temp; |
| 858 | UWORD32 u4_bits_read; |
| 859 | WORD32 i4_dequeue_job; |
| 860 | IMPEG2D_ERROR_CODES_T e_error; |
| 861 | |
| 862 | i4_cur_row = ps_dec->u2_mb_y + 1; |
| 863 | |
| 864 | i4_continue_decode = 1; |
| 865 | |
| 866 | i4_dequeue_job = 1; |
| 867 | do |
| 868 | { |
| 869 | if(i4_cur_row > ps_dec->u2_num_vert_mb) |
| 870 | { |
| 871 | i4_continue_decode = 0; |
| 872 | break; |
| 873 | } |
| 874 | |
| 875 | { |
| 876 | if((ps_dec->i4_num_cores> 1) && (i4_dequeue_job)) |
| 877 | { |
| 878 | job_t s_job; |
| 879 | IV_API_CALL_STATUS_T e_ret; |
| 880 | UWORD8 *pu1_buf; |
| 881 | |
| 882 | e_ret = impeg2_jobq_dequeue(ps_dec->pv_jobq, &s_job, sizeof(s_job), 1, 1); |
| 883 | if(e_ret != IV_SUCCESS) |
| 884 | break; |
| 885 | |
| 886 | if(CMD_PROCESS == s_job.i4_cmd) |
| 887 | { |
| 888 | pu1_buf = ps_dec->pu1_inp_bits_buf + s_job.i4_bistream_ofst; |
| 889 | impeg2d_bit_stream_init(&(ps_dec->s_bit_stream), pu1_buf, |
| 890 | (ps_dec->u4_num_inp_bytes - s_job.i4_bistream_ofst) + 8); |
| 891 | i4_cur_row = s_job.i2_start_mb_y; |
| 892 | ps_dec->i4_start_mb_y = s_job.i2_start_mb_y; |
| 893 | ps_dec->i4_end_mb_y = s_job.i2_end_mb_y; |
| 894 | ps_dec->u2_mb_x = 0; |
| 895 | ps_dec->u2_mb_y = ps_dec->i4_start_mb_y; |
| 896 | ps_dec->u2_num_mbs_left = (ps_dec->i4_end_mb_y - ps_dec->i4_start_mb_y) * ps_dec->u2_num_horiz_mb; |
| 897 | |
| 898 | } |
| 899 | else |
| 900 | { |
| 901 | WORD32 start_row; |
| 902 | WORD32 num_rows; |
| 903 | start_row = s_job.i2_start_mb_y << 4; |
| 904 | num_rows = MIN((s_job.i2_end_mb_y << 4), ps_dec->u2_vertical_size); |
| 905 | num_rows -= start_row; |
Harish Mahendrakar | 8520690 | 2015-08-13 10:59:13 +0530 | [diff] [blame] | 906 | |
| 907 | if(ps_dec->u4_deinterlace && (0 == ps_dec->u2_progressive_frame)) |
| 908 | { |
| 909 | impeg2d_deinterlace(ps_dec, |
| 910 | ps_dec->ps_disp_pic, |
| 911 | ps_dec->ps_disp_frm_buf, |
| 912 | start_row, |
| 913 | num_rows); |
| 914 | |
| 915 | } |
| 916 | else |
| 917 | { |
| 918 | impeg2d_format_convert(ps_dec, ps_dec->ps_disp_pic, |
| 919 | ps_dec->ps_disp_frm_buf, |
| 920 | start_row, num_rows); |
| 921 | } |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 922 | break; |
| 923 | |
| 924 | } |
| 925 | |
| 926 | } |
| 927 | e_error = impeg2d_dec_slice(ps_dec); |
| 928 | |
| 929 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 930 | { |
| 931 | impeg2d_next_start_code(ps_dec); |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | /* Detecting next slice start code */ |
| 936 | while(1) |
| 937 | { |
| 938 | // skip (dec->u4_num_cores-1) rows |
| 939 | u4_bits_read = impeg2d_bit_stream_nxt(&ps_dec->s_bit_stream,START_CODE_LEN); |
| 940 | temp = u4_bits_read & 0xFF; |
| 941 | i4_continue_decode = (((u4_bits_read >> 8) == 0x01) && (temp) && (temp <= 0xAF)); |
| 942 | |
Harish Mahendrakar | c811354 | 2015-12-31 19:06:30 +0530 | [diff] [blame] | 943 | if (1 == ps_dec->i4_num_cores && 0 == ps_dec->u2_num_mbs_left) |
| 944 | { |
| 945 | i4_continue_decode = 0; |
| 946 | android_errorWriteLog(0x534e4554, "26070014"); |
| 947 | } |
| 948 | |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 949 | if(i4_continue_decode) |
| 950 | { |
| 951 | /* If the slice is from the same row, then continue decoding without dequeue */ |
| 952 | if((temp - 1) == i4_cur_row) |
| 953 | { |
| 954 | i4_dequeue_job = 0; |
| 955 | break; |
| 956 | } |
| 957 | |
| 958 | if(temp < ps_dec->i4_end_mb_y) |
| 959 | { |
| 960 | i4_cur_row = ps_dec->u2_mb_y; |
| 961 | } |
| 962 | else |
| 963 | { |
| 964 | i4_dequeue_job = 1; |
| 965 | } |
| 966 | break; |
| 967 | |
| 968 | } |
| 969 | else |
| 970 | break; |
| 971 | } |
| 972 | |
| 973 | }while(i4_continue_decode); |
| 974 | if(ps_dec->i4_num_cores > 1) |
| 975 | { |
| 976 | while(1) |
| 977 | { |
| 978 | job_t s_job; |
| 979 | IV_API_CALL_STATUS_T e_ret; |
| 980 | |
| 981 | e_ret = impeg2_jobq_dequeue(ps_dec->pv_jobq, &s_job, sizeof(s_job), 1, 1); |
| 982 | if(e_ret != IV_SUCCESS) |
| 983 | break; |
| 984 | if(CMD_FMTCONV == s_job.i4_cmd) |
| 985 | { |
| 986 | WORD32 start_row; |
| 987 | WORD32 num_rows; |
| 988 | start_row = s_job.i2_start_mb_y << 4; |
| 989 | num_rows = MIN((s_job.i2_end_mb_y << 4), ps_dec->u2_vertical_size); |
| 990 | num_rows -= start_row; |
Harish Mahendrakar | 8520690 | 2015-08-13 10:59:13 +0530 | [diff] [blame] | 991 | if(ps_dec->u4_deinterlace && (0 == ps_dec->u2_progressive_frame)) |
| 992 | { |
| 993 | impeg2d_deinterlace(ps_dec, |
| 994 | ps_dec->ps_disp_pic, |
| 995 | ps_dec->ps_disp_frm_buf, |
| 996 | start_row, |
| 997 | num_rows); |
| 998 | |
| 999 | } |
| 1000 | else |
| 1001 | { |
| 1002 | impeg2d_format_convert(ps_dec, |
| 1003 | ps_dec->ps_disp_pic, |
| 1004 | ps_dec->ps_disp_frm_buf, |
| 1005 | start_row, |
| 1006 | num_rows); |
| 1007 | } |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1008 | } |
| 1009 | } |
| 1010 | } |
| 1011 | else |
| 1012 | { |
| 1013 | if((NULL != ps_dec->ps_disp_pic) && ((0 == ps_dec->u4_share_disp_buf) || (IV_YUV_420P != ps_dec->i4_chromaFormat))) |
Harish Mahendrakar | 8520690 | 2015-08-13 10:59:13 +0530 | [diff] [blame] | 1014 | { |
| 1015 | if(ps_dec->u4_deinterlace && (0 == ps_dec->u2_progressive_frame)) |
| 1016 | { |
| 1017 | impeg2d_deinterlace(ps_dec, |
| 1018 | ps_dec->ps_disp_pic, |
| 1019 | ps_dec->ps_disp_frm_buf, |
| 1020 | 0, |
| 1021 | ps_dec->u2_vertical_size); |
| 1022 | |
| 1023 | } |
| 1024 | else |
| 1025 | { |
| 1026 | impeg2d_format_convert(ps_dec, ps_dec->ps_disp_pic, |
| 1027 | ps_dec->ps_disp_frm_buf, |
| 1028 | 0, ps_dec->u2_vertical_size); |
| 1029 | } |
| 1030 | } |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1031 | } |
| 1032 | } |
| 1033 | |
| 1034 | static WORD32 impeg2d_init_thread_dec_ctxt(dec_state_t *ps_dec, |
| 1035 | dec_state_t *ps_dec_thd, |
| 1036 | WORD32 i4_min_mb_y) |
| 1037 | { |
| 1038 | UNUSED(i4_min_mb_y); |
| 1039 | ps_dec_thd->i4_start_mb_y = 0; |
| 1040 | ps_dec_thd->i4_end_mb_y = ps_dec->u2_num_vert_mb; |
| 1041 | ps_dec_thd->u2_mb_x = 0; |
| 1042 | ps_dec_thd->u2_mb_y = 0; |
| 1043 | ps_dec_thd->u2_is_mpeg2 = ps_dec->u2_is_mpeg2; |
| 1044 | ps_dec_thd->u2_frame_width = ps_dec->u2_frame_width; |
| 1045 | ps_dec_thd->u2_frame_height = ps_dec->u2_frame_height; |
| 1046 | ps_dec_thd->u2_picture_width = ps_dec->u2_picture_width; |
| 1047 | ps_dec_thd->u2_horizontal_size = ps_dec->u2_horizontal_size; |
| 1048 | ps_dec_thd->u2_vertical_size = ps_dec->u2_vertical_size; |
| 1049 | ps_dec_thd->u2_create_max_width = ps_dec->u2_create_max_width; |
| 1050 | ps_dec_thd->u2_create_max_height = ps_dec->u2_create_max_height; |
| 1051 | ps_dec_thd->u2_header_done = ps_dec->u2_header_done; |
| 1052 | ps_dec_thd->u2_decode_header = ps_dec->u2_decode_header; |
| 1053 | |
| 1054 | ps_dec_thd->u2_num_horiz_mb = ps_dec->u2_num_horiz_mb; |
| 1055 | ps_dec_thd->u2_num_vert_mb = ps_dec->u2_num_vert_mb; |
| 1056 | ps_dec_thd->u2_num_flds_decoded = ps_dec->u2_num_flds_decoded; |
| 1057 | |
| 1058 | ps_dec_thd->u4_frm_buf_stride = ps_dec->u4_frm_buf_stride; |
| 1059 | |
| 1060 | ps_dec_thd->u2_field_dct = ps_dec->u2_field_dct; |
| 1061 | ps_dec_thd->u2_read_dct_type = ps_dec->u2_read_dct_type; |
| 1062 | |
| 1063 | ps_dec_thd->u2_read_motion_type = ps_dec->u2_read_motion_type; |
| 1064 | ps_dec_thd->u2_motion_type = ps_dec->u2_motion_type; |
| 1065 | |
| 1066 | ps_dec_thd->pu2_mb_type = ps_dec->pu2_mb_type; |
| 1067 | ps_dec_thd->u2_fld_pic = ps_dec->u2_fld_pic; |
| 1068 | ps_dec_thd->u2_frm_pic = ps_dec->u2_frm_pic; |
| 1069 | |
| 1070 | ps_dec_thd->u2_fld_parity = ps_dec->u2_fld_parity; |
| 1071 | |
| 1072 | ps_dec_thd->au2_fcode_data[0] = ps_dec->au2_fcode_data[0]; |
| 1073 | ps_dec_thd->au2_fcode_data[1] = ps_dec->au2_fcode_data[1]; |
| 1074 | |
| 1075 | ps_dec_thd->u1_quant_scale = ps_dec->u1_quant_scale; |
| 1076 | |
| 1077 | ps_dec_thd->u2_num_mbs_left = ps_dec->u2_num_mbs_left; |
| 1078 | ps_dec_thd->u2_first_mb = ps_dec->u2_first_mb; |
| 1079 | ps_dec_thd->u2_num_skipped_mbs = ps_dec->u2_num_skipped_mbs; |
| 1080 | |
| 1081 | memcpy(&ps_dec_thd->s_cur_frm_buf, &ps_dec->s_cur_frm_buf, sizeof(yuv_buf_t)); |
| 1082 | memcpy(&ps_dec_thd->as_recent_fld[0][0], &ps_dec->as_recent_fld[0][0], sizeof(yuv_buf_t)); |
| 1083 | memcpy(&ps_dec_thd->as_recent_fld[0][1], &ps_dec->as_recent_fld[0][1], sizeof(yuv_buf_t)); |
| 1084 | memcpy(&ps_dec_thd->as_recent_fld[1][0], &ps_dec->as_recent_fld[1][0], sizeof(yuv_buf_t)); |
| 1085 | memcpy(&ps_dec_thd->as_recent_fld[1][1], &ps_dec->as_recent_fld[1][1], sizeof(yuv_buf_t)); |
| 1086 | memcpy(&ps_dec_thd->as_ref_buf, &ps_dec->as_ref_buf, sizeof(yuv_buf_t) * 2 * 2); |
| 1087 | |
| 1088 | |
| 1089 | ps_dec_thd->pf_decode_slice = ps_dec->pf_decode_slice; |
| 1090 | |
| 1091 | ps_dec_thd->pf_vld_inv_quant = ps_dec->pf_vld_inv_quant; |
| 1092 | |
| 1093 | memcpy(ps_dec_thd->pf_idct_recon, ps_dec->pf_idct_recon, sizeof(ps_dec->pf_idct_recon)); |
| 1094 | |
| 1095 | memcpy(ps_dec_thd->pf_mc, ps_dec->pf_mc, sizeof(ps_dec->pf_mc)); |
| 1096 | ps_dec_thd->pf_interpolate = ps_dec->pf_interpolate; |
| 1097 | ps_dec_thd->pf_copy_mb = ps_dec->pf_copy_mb; |
| 1098 | ps_dec_thd->pf_fullx_halfy_8x8 = ps_dec->pf_fullx_halfy_8x8; |
| 1099 | ps_dec_thd->pf_halfx_fully_8x8 = ps_dec->pf_halfx_fully_8x8; |
| 1100 | ps_dec_thd->pf_halfx_halfy_8x8 = ps_dec->pf_halfx_halfy_8x8; |
| 1101 | ps_dec_thd->pf_fullx_fully_8x8 = ps_dec->pf_fullx_fully_8x8; |
| 1102 | |
| 1103 | ps_dec_thd->pf_memset_8bit_8x8_block = ps_dec->pf_memset_8bit_8x8_block; |
| 1104 | ps_dec_thd->pf_memset_16bit_8x8_linear_block = ps_dec->pf_memset_16bit_8x8_linear_block; |
| 1105 | ps_dec_thd->pf_copy_yuv420p_buf = ps_dec->pf_copy_yuv420p_buf; |
| 1106 | ps_dec_thd->pf_fmt_conv_yuv420p_to_yuv422ile = ps_dec->pf_fmt_conv_yuv420p_to_yuv422ile; |
| 1107 | ps_dec_thd->pf_fmt_conv_yuv420p_to_yuv420sp_uv = ps_dec->pf_fmt_conv_yuv420p_to_yuv420sp_uv; |
| 1108 | ps_dec_thd->pf_fmt_conv_yuv420p_to_yuv420sp_vu = ps_dec->pf_fmt_conv_yuv420p_to_yuv420sp_vu; |
| 1109 | |
| 1110 | |
| 1111 | memcpy(ps_dec_thd->au1_intra_quant_matrix, ps_dec->au1_intra_quant_matrix, NUM_PELS_IN_BLOCK * sizeof(UWORD8)); |
| 1112 | memcpy(ps_dec_thd->au1_inter_quant_matrix, ps_dec->au1_inter_quant_matrix, NUM_PELS_IN_BLOCK * sizeof(UWORD8)); |
| 1113 | ps_dec_thd->pu1_inv_scan_matrix = ps_dec->pu1_inv_scan_matrix; |
| 1114 | |
| 1115 | |
| 1116 | ps_dec_thd->u2_progressive_sequence = ps_dec->u2_progressive_sequence; |
| 1117 | ps_dec_thd->e_pic_type = ps_dec->e_pic_type; |
| 1118 | ps_dec_thd->u2_full_pel_forw_vector = ps_dec->u2_full_pel_forw_vector; |
| 1119 | ps_dec_thd->u2_forw_f_code = ps_dec->u2_forw_f_code; |
| 1120 | ps_dec_thd->u2_full_pel_back_vector = ps_dec->u2_full_pel_back_vector; |
| 1121 | ps_dec_thd->u2_back_f_code = ps_dec->u2_back_f_code; |
| 1122 | |
| 1123 | memcpy(ps_dec_thd->ai2_mv, ps_dec->ai2_mv, (2*2*2)*sizeof(WORD16)); |
| 1124 | memcpy(ps_dec_thd->au2_f_code, ps_dec->au2_f_code, (2*2)*sizeof(UWORD16)); |
| 1125 | ps_dec_thd->u2_intra_dc_precision = ps_dec->u2_intra_dc_precision; |
| 1126 | ps_dec_thd->u2_picture_structure = ps_dec->u2_picture_structure; |
| 1127 | ps_dec_thd->u2_top_field_first = ps_dec->u2_top_field_first; |
| 1128 | ps_dec_thd->u2_frame_pred_frame_dct = ps_dec->u2_frame_pred_frame_dct; |
| 1129 | ps_dec_thd->u2_concealment_motion_vectors = ps_dec->u2_concealment_motion_vectors; |
| 1130 | ps_dec_thd->u2_q_scale_type = ps_dec->u2_q_scale_type; |
| 1131 | ps_dec_thd->u2_intra_vlc_format = ps_dec->u2_intra_vlc_format; |
| 1132 | ps_dec_thd->u2_alternate_scan = ps_dec->u2_alternate_scan; |
| 1133 | ps_dec_thd->u2_repeat_first_field = ps_dec->u2_repeat_first_field; |
| 1134 | ps_dec_thd->u2_progressive_frame = ps_dec->u2_progressive_frame; |
| 1135 | ps_dec_thd->pu1_inp_bits_buf = ps_dec->pu1_inp_bits_buf; |
| 1136 | ps_dec_thd->u4_num_inp_bytes = ps_dec->u4_num_inp_bytes; |
| 1137 | ps_dec_thd->pv_jobq = ps_dec->pv_jobq; |
| 1138 | ps_dec_thd->pv_jobq_buf = ps_dec->pv_jobq_buf; |
| 1139 | ps_dec_thd->i4_jobq_buf_size = ps_dec->i4_jobq_buf_size; |
| 1140 | |
| 1141 | |
| 1142 | ps_dec_thd->u2_frame_rate_code = ps_dec->u2_frame_rate_code; |
| 1143 | ps_dec_thd->u2_frame_rate_extension_n = ps_dec->u2_frame_rate_extension_n; |
| 1144 | ps_dec_thd->u2_frame_rate_extension_d = ps_dec->u2_frame_rate_extension_d; |
| 1145 | ps_dec_thd->u2_framePeriod = ps_dec->u2_framePeriod; |
| 1146 | ps_dec_thd->u2_display_horizontal_size = ps_dec->u2_display_horizontal_size; |
| 1147 | ps_dec_thd->u2_display_vertical_size = ps_dec->u2_display_vertical_size; |
| 1148 | ps_dec_thd->u2_aspect_ratio_info = ps_dec->u2_aspect_ratio_info; |
| 1149 | |
| 1150 | ps_dec_thd->ps_func_bi_direct = ps_dec->ps_func_bi_direct; |
| 1151 | ps_dec_thd->ps_func_forw_or_back = ps_dec->ps_func_forw_or_back; |
Harish Mahendrakar | 8520690 | 2015-08-13 10:59:13 +0530 | [diff] [blame] | 1152 | ps_dec_thd->pv_deinterlacer_ctxt = ps_dec->pv_deinterlacer_ctxt; |
| 1153 | ps_dec_thd->ps_deint_pic = ps_dec->ps_deint_pic; |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1154 | |
| 1155 | return 0; |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1156 | } |
| 1157 | |
| 1158 | |
| 1159 | WORD32 impeg2d_get_slice_pos(dec_state_multi_core_t *ps_dec_state_multi_core) |
| 1160 | { |
| 1161 | WORD32 u4_bits; |
| 1162 | WORD32 i4_row; |
| 1163 | |
| 1164 | |
| 1165 | dec_state_t *ps_dec = ps_dec_state_multi_core->ps_dec_state[0]; |
| 1166 | WORD32 i4_prev_row; |
| 1167 | stream_t s_bitstrm; |
| 1168 | WORD32 i4_start_row; |
| 1169 | WORD32 i4_slice_bistream_ofst; |
| 1170 | WORD32 i; |
| 1171 | s_bitstrm = ps_dec->s_bit_stream; |
| 1172 | i4_prev_row = -1; |
| 1173 | |
| 1174 | ps_dec_state_multi_core->ps_dec_state[0]->i4_start_mb_y = 0; |
| 1175 | ps_dec_state_multi_core->ps_dec_state[1]->i4_start_mb_y = -1; |
| 1176 | ps_dec_state_multi_core->ps_dec_state[2]->i4_start_mb_y = -1; |
| 1177 | ps_dec_state_multi_core->ps_dec_state[3]->i4_start_mb_y = -1; |
| 1178 | |
| 1179 | ps_dec_state_multi_core->ps_dec_state[0]->i4_end_mb_y = ps_dec->u2_num_vert_mb; |
| 1180 | ps_dec_state_multi_core->ps_dec_state[1]->i4_end_mb_y = -1; |
| 1181 | ps_dec_state_multi_core->ps_dec_state[2]->i4_end_mb_y = -1; |
| 1182 | ps_dec_state_multi_core->ps_dec_state[3]->i4_end_mb_y = -1; |
| 1183 | |
| 1184 | if(ps_dec->i4_num_cores == 1) |
| 1185 | return 0; |
| 1186 | /* Reset the jobq to start of the jobq buffer */ |
| 1187 | impeg2_jobq_reset((jobq_t *)ps_dec->pv_jobq); |
| 1188 | |
| 1189 | i4_start_row = -1; |
| 1190 | i4_slice_bistream_ofst = 0; |
| 1191 | while(1) |
| 1192 | { |
| 1193 | WORD32 i4_is_slice; |
Venkatarama Avadhani | b349138 | 2015-04-16 17:39:55 +0530 | [diff] [blame] | 1194 | |
| 1195 | if(s_bitstrm.u4_offset + START_CODE_LEN >= s_bitstrm.u4_max_offset) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1196 | { |
| 1197 | break; |
| 1198 | } |
Venkatarama Avadhani | b349138 | 2015-04-16 17:39:55 +0530 | [diff] [blame] | 1199 | u4_bits = impeg2d_bit_stream_nxt(&s_bitstrm,START_CODE_LEN); |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1200 | |
| 1201 | i4_row = u4_bits & 0xFF; |
| 1202 | |
| 1203 | /* Detect end of frame */ |
| 1204 | i4_is_slice = (((u4_bits >> 8) == 0x01) && (i4_row) && (i4_row <= ps_dec->u2_num_vert_mb)); |
| 1205 | if(!i4_is_slice) |
| 1206 | break; |
| 1207 | |
| 1208 | i4_row -= 1; |
| 1209 | |
| 1210 | |
Harish Mahendrakar | c811354 | 2015-12-31 19:06:30 +0530 | [diff] [blame] | 1211 | if(i4_prev_row < i4_row) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1212 | { |
| 1213 | /* Create a job for previous slice row */ |
| 1214 | if(i4_start_row != -1) |
| 1215 | { |
| 1216 | job_t s_job; |
| 1217 | IV_API_CALL_STATUS_T ret; |
| 1218 | s_job.i2_start_mb_y = i4_start_row; |
| 1219 | s_job.i2_end_mb_y = i4_row; |
| 1220 | s_job.i4_cmd = CMD_PROCESS; |
| 1221 | s_job.i4_bistream_ofst = i4_slice_bistream_ofst; |
| 1222 | ret = impeg2_jobq_queue(ps_dec->pv_jobq, &s_job, sizeof(s_job), 1, 0); |
| 1223 | if(ret != IV_SUCCESS) |
| 1224 | return ret; |
| 1225 | |
| 1226 | } |
| 1227 | /* Store current slice's bitstream offset */ |
| 1228 | i4_slice_bistream_ofst = s_bitstrm.u4_offset >> 3; |
| 1229 | i4_slice_bistream_ofst -= (size_t)s_bitstrm.pv_bs_buf & 3; |
| 1230 | i4_prev_row = i4_row; |
| 1231 | |
| 1232 | /* Store current slice's row position */ |
| 1233 | i4_start_row = i4_row; |
| 1234 | |
Harish Mahendrakar | c811354 | 2015-12-31 19:06:30 +0530 | [diff] [blame] | 1235 | } else if (i4_prev_row > i4_row) { |
| 1236 | android_errorWriteLog(0x534e4554, "26070014"); |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1237 | } |
| 1238 | |
| 1239 | |
| 1240 | impeg2d_bit_stream_flush(&s_bitstrm, START_CODE_LEN); |
| 1241 | |
| 1242 | // flush bytes till next start code |
| 1243 | /* Flush the bytes till a start code is encountered */ |
| 1244 | while(impeg2d_bit_stream_nxt(&s_bitstrm, 24) != START_CODE_PREFIX) |
| 1245 | { |
| 1246 | impeg2d_bit_stream_get(&s_bitstrm, 8); |
| 1247 | |
| 1248 | if(s_bitstrm.u4_offset >= s_bitstrm.u4_max_offset) |
| 1249 | { |
| 1250 | break; |
| 1251 | } |
| 1252 | } |
| 1253 | } |
| 1254 | |
| 1255 | /* Create job for the last slice row */ |
| 1256 | { |
| 1257 | job_t s_job; |
| 1258 | IV_API_CALL_STATUS_T e_ret; |
| 1259 | s_job.i2_start_mb_y = i4_start_row; |
| 1260 | s_job.i2_end_mb_y = ps_dec->u2_num_vert_mb; |
| 1261 | s_job.i4_cmd = CMD_PROCESS; |
| 1262 | s_job.i4_bistream_ofst = i4_slice_bistream_ofst; |
| 1263 | e_ret = impeg2_jobq_queue(ps_dec->pv_jobq, &s_job, sizeof(s_job), 1, 0); |
| 1264 | if(e_ret != IV_SUCCESS) |
| 1265 | return e_ret; |
| 1266 | |
| 1267 | } |
| 1268 | if((NULL != ps_dec->ps_disp_pic) && ((0 == ps_dec->u4_share_disp_buf) || (IV_YUV_420P != ps_dec->i4_chromaFormat))) |
| 1269 | { |
| 1270 | for(i = 0; i < ps_dec->u2_vertical_size; i+=64) |
| 1271 | { |
| 1272 | job_t s_job; |
| 1273 | IV_API_CALL_STATUS_T ret; |
| 1274 | s_job.i2_start_mb_y = i; |
| 1275 | s_job.i2_start_mb_y >>= 4; |
| 1276 | s_job.i2_end_mb_y = (i + 64); |
| 1277 | s_job.i2_end_mb_y >>= 4; |
| 1278 | s_job.i4_cmd = CMD_FMTCONV; |
| 1279 | s_job.i4_bistream_ofst = 0; |
| 1280 | ret = impeg2_jobq_queue(ps_dec->pv_jobq, &s_job, sizeof(s_job), 1, 0); |
| 1281 | if(ret != IV_SUCCESS) |
| 1282 | return ret; |
| 1283 | |
| 1284 | } |
| 1285 | } |
| 1286 | |
| 1287 | impeg2_jobq_terminate(ps_dec->pv_jobq); |
| 1288 | ps_dec->i4_bytes_consumed = s_bitstrm.u4_offset >> 3; |
| 1289 | ps_dec->i4_bytes_consumed -= ((size_t)s_bitstrm.pv_bs_buf & 3); |
| 1290 | |
| 1291 | return 0; |
| 1292 | } |
| 1293 | |
| 1294 | /******************************************************************************* |
| 1295 | * |
| 1296 | * Function Name : impeg2d_dec_pic_data |
| 1297 | * |
| 1298 | * Description : It intializes several parameters and decodes a Picture |
| 1299 | * till any slice is left. |
| 1300 | * |
| 1301 | * Arguments : |
| 1302 | * dec : Decoder context |
| 1303 | * |
| 1304 | * Values Returned : None |
| 1305 | *******************************************************************************/ |
| 1306 | |
| 1307 | void impeg2d_dec_pic_data(dec_state_t *ps_dec) |
| 1308 | { |
| 1309 | |
| 1310 | WORD32 i; |
| 1311 | dec_state_multi_core_t *ps_dec_state_multi_core; |
| 1312 | |
| 1313 | UWORD32 u4_error_code; |
| 1314 | |
| 1315 | dec_state_t *ps_dec_thd; |
| 1316 | WORD32 i4_status; |
| 1317 | WORD32 i4_min_mb_y; |
| 1318 | |
| 1319 | |
| 1320 | /* Resetting the MB address and MB coordinates at the start of the Frame */ |
| 1321 | ps_dec->u2_mb_x = ps_dec->u2_mb_y = 0; |
| 1322 | u4_error_code = 0; |
| 1323 | |
| 1324 | ps_dec_state_multi_core = ps_dec->ps_dec_state_multi_core; |
| 1325 | impeg2d_get_slice_pos(ps_dec_state_multi_core); |
| 1326 | |
| 1327 | i4_min_mb_y = 1; |
| 1328 | for(i=0; i < ps_dec->i4_num_cores - 1; i++) |
| 1329 | { |
| 1330 | // initialize decoder context for thread |
| 1331 | // launch dec->u4_num_cores-1 threads |
| 1332 | |
| 1333 | ps_dec_thd = ps_dec_state_multi_core->ps_dec_state[i+1]; |
| 1334 | |
| 1335 | ps_dec_thd->ps_disp_pic = ps_dec->ps_disp_pic; |
| 1336 | ps_dec_thd->ps_disp_frm_buf = ps_dec->ps_disp_frm_buf; |
| 1337 | |
| 1338 | i4_status = impeg2d_init_thread_dec_ctxt(ps_dec, ps_dec_thd, i4_min_mb_y); |
| 1339 | //impeg2d_dec_pic_data_thread(ps_dec_thd); |
| 1340 | |
| 1341 | if(i4_status == 0) |
| 1342 | { |
| 1343 | ithread_create(ps_dec_thd->pv_codec_thread_handle, NULL, (void *)impeg2d_dec_pic_data_thread, ps_dec_thd); |
| 1344 | ps_dec_state_multi_core->au4_thread_launched[i + 1] = 1; |
| 1345 | i4_min_mb_y = ps_dec_thd->u2_mb_y + 1; |
| 1346 | } |
| 1347 | else |
| 1348 | { |
| 1349 | ps_dec_state_multi_core->au4_thread_launched[i + 1] = 0; |
| 1350 | break; |
| 1351 | } |
| 1352 | } |
| 1353 | |
| 1354 | impeg2d_dec_pic_data_thread(ps_dec); |
| 1355 | |
| 1356 | // wait for threads to complete |
| 1357 | for(i=0; i < (ps_dec->i4_num_cores - 1); i++) |
| 1358 | { |
| 1359 | if(ps_dec_state_multi_core->au4_thread_launched[i + 1] == 1) |
| 1360 | { |
| 1361 | ps_dec_thd = ps_dec_state_multi_core->ps_dec_state[i+1]; |
| 1362 | ithread_join(ps_dec_thd->pv_codec_thread_handle, NULL); |
| 1363 | } |
| 1364 | } |
| 1365 | |
| 1366 | ps_dec->u4_error_code = u4_error_code; |
| 1367 | |
| 1368 | } |
| 1369 | /******************************************************************************* |
| 1370 | * |
| 1371 | * Function Name : impeg2d_flush_ext_and_user_data |
| 1372 | * |
| 1373 | * Description : Flushes the extension and user data present in the |
| 1374 | * stream_t |
| 1375 | * |
| 1376 | * Arguments : |
| 1377 | * dec : Decoder context |
| 1378 | * |
| 1379 | * Values Returned : None |
| 1380 | *******************************************************************************/ |
| 1381 | void impeg2d_flush_ext_and_user_data(dec_state_t *ps_dec) |
| 1382 | { |
| 1383 | UWORD32 u4_start_code; |
| 1384 | stream_t *ps_stream; |
| 1385 | |
| 1386 | ps_stream = &ps_dec->s_bit_stream; |
| 1387 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1388 | |
Harish Mahendrakar | 8c743b5 | 2015-12-30 17:38:27 +0530 | [diff] [blame] | 1389 | while((u4_start_code == EXTENSION_START_CODE || u4_start_code == USER_DATA_START_CODE) && |
| 1390 | (ps_stream->u4_offset < ps_stream->u4_max_offset)) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1391 | { |
| 1392 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
Harish Mahendrakar | 8c743b5 | 2015-12-30 17:38:27 +0530 | [diff] [blame] | 1393 | while(impeg2d_bit_stream_nxt(ps_stream,START_CODE_PREFIX_LEN) != START_CODE_PREFIX && |
| 1394 | (ps_stream->u4_offset < ps_stream->u4_max_offset)) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1395 | { |
| 1396 | impeg2d_bit_stream_flush(ps_stream,8); |
| 1397 | } |
| 1398 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1399 | } |
| 1400 | } |
| 1401 | /******************************************************************************* |
| 1402 | * |
| 1403 | * Function Name : impeg2d_dec_user_data |
| 1404 | * |
| 1405 | * Description : Flushes the user data present in the stream_t |
| 1406 | * |
| 1407 | * Arguments : |
| 1408 | * dec : Decoder context |
| 1409 | * |
| 1410 | * Values Returned : None |
| 1411 | *******************************************************************************/ |
| 1412 | void impeg2d_dec_user_data(dec_state_t *ps_dec) |
| 1413 | { |
| 1414 | UWORD32 u4_start_code; |
| 1415 | stream_t *ps_stream; |
| 1416 | |
| 1417 | ps_stream = &ps_dec->s_bit_stream; |
| 1418 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1419 | |
| 1420 | while(u4_start_code == USER_DATA_START_CODE) |
| 1421 | { |
| 1422 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
Harish Mahendrakar | 8c743b5 | 2015-12-30 17:38:27 +0530 | [diff] [blame] | 1423 | while((impeg2d_bit_stream_nxt(ps_stream,START_CODE_PREFIX_LEN) != START_CODE_PREFIX) && |
| 1424 | (ps_stream->u4_offset < ps_stream->u4_max_offset)) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1425 | { |
| 1426 | impeg2d_bit_stream_flush(ps_stream,8); |
| 1427 | } |
| 1428 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1429 | } |
| 1430 | } |
| 1431 | /******************************************************************************* |
| 1432 | * Function Name : impeg2d_dec_seq_ext_data |
| 1433 | * |
| 1434 | * Description : Decodes the extension data following Sequence |
| 1435 | * Extension. It flushes any user data if present |
| 1436 | * |
| 1437 | * Arguments : |
| 1438 | * dec : Decoder context |
| 1439 | * |
| 1440 | * Values Returned : None |
| 1441 | *******************************************************************************/ |
| 1442 | IMPEG2D_ERROR_CODES_T impeg2d_dec_seq_ext_data(dec_state_t *ps_dec) |
| 1443 | { |
| 1444 | stream_t *ps_stream; |
| 1445 | UWORD32 u4_start_code; |
| 1446 | IMPEG2D_ERROR_CODES_T e_error; |
| 1447 | |
| 1448 | e_error = (IMPEG2D_ERROR_CODES_T) IVD_ERROR_NONE; |
| 1449 | |
| 1450 | ps_stream = &ps_dec->s_bit_stream; |
| 1451 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1452 | while( (u4_start_code == EXTENSION_START_CODE || |
| 1453 | u4_start_code == USER_DATA_START_CODE) && |
Harish Mahendrakar | 8c743b5 | 2015-12-30 17:38:27 +0530 | [diff] [blame] | 1454 | (IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE == e_error && |
| 1455 | (ps_stream->u4_offset < ps_stream->u4_max_offset)) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1456 | { |
| 1457 | if(u4_start_code == USER_DATA_START_CODE) |
| 1458 | { |
| 1459 | impeg2d_dec_user_data(ps_dec); |
| 1460 | } |
| 1461 | else |
| 1462 | { |
| 1463 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
| 1464 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,EXT_ID_LEN); |
| 1465 | switch(u4_start_code) |
| 1466 | { |
| 1467 | case SEQ_DISPLAY_EXT_ID: |
| 1468 | impeg2d_dec_seq_disp_ext(ps_dec); |
| 1469 | break; |
| 1470 | case SEQ_SCALABLE_EXT_ID: |
| 1471 | e_error = IMPEG2D_SCALABILITIY_NOT_SUPPORTED; |
| 1472 | break; |
| 1473 | default: |
| 1474 | /* In case its a reserved extension code */ |
| 1475 | impeg2d_bit_stream_flush(ps_stream,EXT_ID_LEN); |
| 1476 | impeg2d_peek_next_start_code(ps_dec); |
| 1477 | break; |
| 1478 | } |
| 1479 | } |
| 1480 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1481 | } |
| 1482 | return e_error; |
| 1483 | } |
| 1484 | /******************************************************************************* |
| 1485 | * Function Name : impeg2d_dec_pic_ext_data |
| 1486 | * |
| 1487 | * Description : Decodes the extension data following Picture Coding |
| 1488 | * Extension. It flushes any user data if present |
| 1489 | * |
| 1490 | * Arguments : |
| 1491 | * dec : Decoder context |
| 1492 | * |
| 1493 | * Values Returned : None |
| 1494 | *******************************************************************************/ |
| 1495 | IMPEG2D_ERROR_CODES_T impeg2d_dec_pic_ext_data(dec_state_t *ps_dec) |
| 1496 | { |
| 1497 | stream_t *ps_stream; |
| 1498 | UWORD32 u4_start_code; |
| 1499 | IMPEG2D_ERROR_CODES_T e_error; |
| 1500 | |
| 1501 | e_error = (IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE; |
| 1502 | |
| 1503 | ps_stream = &ps_dec->s_bit_stream; |
| 1504 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1505 | while ( (u4_start_code == EXTENSION_START_CODE || |
| 1506 | u4_start_code == USER_DATA_START_CODE) && |
Harish Mahendrakar | 8c743b5 | 2015-12-30 17:38:27 +0530 | [diff] [blame] | 1507 | (IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE == e_error && |
| 1508 | (ps_stream->u4_offset < ps_stream->u4_max_offset)) |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1509 | { |
| 1510 | if(u4_start_code == USER_DATA_START_CODE) |
| 1511 | { |
| 1512 | impeg2d_dec_user_data(ps_dec); |
| 1513 | } |
| 1514 | else |
| 1515 | { |
| 1516 | impeg2d_bit_stream_flush(ps_stream,START_CODE_LEN); |
| 1517 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,EXT_ID_LEN); |
| 1518 | switch(u4_start_code) |
| 1519 | { |
| 1520 | case QUANT_MATRIX_EXT_ID: |
| 1521 | impeg2d_dec_quant_matrix_ext(ps_dec); |
| 1522 | break; |
| 1523 | case COPYRIGHT_EXT_ID: |
| 1524 | impeg2d_dec_copyright_ext(ps_dec); |
| 1525 | break; |
| 1526 | case PIC_DISPLAY_EXT_ID: |
| 1527 | impeg2d_dec_pic_disp_ext(ps_dec); |
| 1528 | break; |
| 1529 | case CAMERA_PARAM_EXT_ID: |
| 1530 | impeg2d_dec_cam_param_ext(ps_dec); |
| 1531 | break; |
| 1532 | case ITU_T_EXT_ID: |
| 1533 | impeg2d_dec_itu_t_ext(ps_dec); |
| 1534 | break; |
| 1535 | case PIC_SPATIAL_SCALABLE_EXT_ID: |
| 1536 | case PIC_TEMPORAL_SCALABLE_EXT_ID: |
| 1537 | e_error = IMPEG2D_SCALABLITY_NOT_SUP; |
| 1538 | break; |
| 1539 | default: |
| 1540 | /* In case its a reserved extension code */ |
| 1541 | impeg2d_bit_stream_flush(ps_stream,EXT_ID_LEN); |
| 1542 | impeg2d_next_start_code(ps_dec); |
| 1543 | break; |
| 1544 | } |
| 1545 | } |
| 1546 | u4_start_code = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1547 | } |
| 1548 | return e_error; |
| 1549 | } |
| 1550 | |
| 1551 | /******************************************************************************* |
| 1552 | * |
| 1553 | * Function Name : impeg2d_process_video_header |
| 1554 | * |
| 1555 | * Description : Processes video sequence header information |
| 1556 | * |
| 1557 | * Arguments : |
| 1558 | * dec : Decoder context |
| 1559 | * |
| 1560 | * Values Returned : None |
| 1561 | *******************************************************************************/ |
| 1562 | IMPEG2D_ERROR_CODES_T impeg2d_process_video_header(dec_state_t *ps_dec) |
| 1563 | { |
| 1564 | stream_t *ps_stream; |
| 1565 | ps_stream = &ps_dec->s_bit_stream; |
| 1566 | IMPEG2D_ERROR_CODES_T e_error; |
| 1567 | |
| 1568 | impeg2d_next_code(ps_dec, SEQUENCE_HEADER_CODE); |
| 1569 | if(ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1570 | { |
| 1571 | e_error = impeg2d_dec_seq_hdr(ps_dec); |
| 1572 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 1573 | { |
| 1574 | return e_error; |
| 1575 | } |
| 1576 | } |
| 1577 | else |
| 1578 | { |
| 1579 | return IMPEG2D_BITSTREAM_BUFF_EXCEEDED_ERR; |
| 1580 | } |
| 1581 | if (impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN) == EXTENSION_START_CODE) |
| 1582 | { |
| 1583 | /* MPEG2 Decoder */ |
| 1584 | if(ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1585 | { |
| 1586 | e_error = impeg2d_dec_seq_ext(ps_dec); |
| 1587 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 1588 | { |
| 1589 | return e_error; |
| 1590 | } |
| 1591 | } |
| 1592 | else |
| 1593 | { |
| 1594 | return IMPEG2D_BITSTREAM_BUFF_EXCEEDED_ERR; |
| 1595 | } |
| 1596 | if(ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1597 | { |
| 1598 | e_error = impeg2d_dec_seq_ext_data(ps_dec); |
| 1599 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 1600 | { |
| 1601 | return e_error; |
| 1602 | } |
| 1603 | } |
| 1604 | return impeg2d_init_video_state(ps_dec,MPEG_2_VIDEO); |
| 1605 | } |
| 1606 | else |
| 1607 | { |
| 1608 | /* MPEG1 Decoder */ |
| 1609 | if(ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1610 | { |
| 1611 | impeg2d_flush_ext_and_user_data(ps_dec); |
| 1612 | } |
| 1613 | return impeg2d_init_video_state(ps_dec,MPEG_1_VIDEO); |
| 1614 | } |
| 1615 | } |
| 1616 | /******************************************************************************* |
| 1617 | * |
| 1618 | * Function Name : impeg2d_process_video_bit_stream |
| 1619 | * |
| 1620 | * Description : Processes video sequence header information |
| 1621 | * |
| 1622 | * Arguments : |
| 1623 | * dec : Decoder context |
| 1624 | * |
| 1625 | * Values Returned : None |
| 1626 | *******************************************************************************/ |
| 1627 | IMPEG2D_ERROR_CODES_T impeg2d_process_video_bit_stream(dec_state_t *ps_dec) |
| 1628 | { |
| 1629 | stream_t *ps_stream; |
| 1630 | UWORD32 u4_next_bits, u4_start_code_found; |
| 1631 | IMPEG2D_ERROR_CODES_T e_error; |
| 1632 | |
| 1633 | ps_stream = &ps_dec->s_bit_stream; |
| 1634 | impeg2d_next_start_code(ps_dec); |
| 1635 | /* If the stream is MPEG-2 compliant stream */ |
| 1636 | u4_start_code_found = 0; |
| 1637 | |
| 1638 | if(ps_dec->u2_is_mpeg2) |
| 1639 | { |
| 1640 | /* MPEG2 decoding starts */ |
| 1641 | while((u4_start_code_found == 0) && (ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset)) |
| 1642 | { |
| 1643 | u4_next_bits = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1644 | |
| 1645 | if(u4_next_bits == SEQUENCE_HEADER_CODE) |
| 1646 | { |
| 1647 | if(ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1648 | { |
| 1649 | e_error = impeg2d_dec_seq_hdr(ps_dec); |
| 1650 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 1651 | { |
| 1652 | return e_error; |
| 1653 | } |
| 1654 | |
| 1655 | u4_start_code_found = 0; |
| 1656 | |
| 1657 | } |
| 1658 | else |
| 1659 | { |
| 1660 | return IMPEG2D_BITSTREAM_BUFF_EXCEEDED_ERR; |
| 1661 | } |
| 1662 | |
| 1663 | |
| 1664 | if(ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1665 | { |
| 1666 | IMPEG2D_ERROR_CODES_T e_error; |
| 1667 | e_error = impeg2d_dec_seq_ext(ps_dec); |
| 1668 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 1669 | { |
| 1670 | return e_error; |
| 1671 | } |
| 1672 | u4_start_code_found = 0; |
| 1673 | |
| 1674 | } |
| 1675 | else |
| 1676 | { |
| 1677 | return IMPEG2D_BITSTREAM_BUFF_EXCEEDED_ERR; |
| 1678 | } |
| 1679 | } |
| 1680 | else if((u4_next_bits == USER_DATA_START_CODE) || (u4_next_bits == EXTENSION_START_CODE)) |
| 1681 | { |
| 1682 | if(ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1683 | { |
| 1684 | impeg2d_dec_seq_ext_data(ps_dec); |
| 1685 | u4_start_code_found = 0; |
| 1686 | |
| 1687 | } |
| 1688 | |
| 1689 | } |
| 1690 | else if((ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1691 | && (u4_next_bits == GOP_START_CODE)) |
| 1692 | { |
| 1693 | impeg2d_dec_grp_of_pic_hdr(ps_dec); |
| 1694 | impeg2d_dec_user_data(ps_dec); |
| 1695 | u4_start_code_found = 0; |
| 1696 | |
| 1697 | } |
| 1698 | else if((ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1699 | && (u4_next_bits == PICTURE_START_CODE)) |
| 1700 | { |
| 1701 | |
| 1702 | e_error = impeg2d_dec_pic_hdr(ps_dec); |
| 1703 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 1704 | { |
| 1705 | return e_error; |
| 1706 | } |
| 1707 | impeg2d_dec_pic_coding_ext(ps_dec); |
| 1708 | e_error = impeg2d_dec_pic_ext_data(ps_dec); |
| 1709 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 1710 | { |
| 1711 | return e_error; |
| 1712 | } |
| 1713 | impeg2d_pre_pic_dec_proc(ps_dec); |
| 1714 | impeg2d_dec_pic_data(ps_dec); |
| 1715 | impeg2d_post_pic_dec_proc(ps_dec); |
| 1716 | u4_start_code_found = 1; |
| 1717 | } |
| 1718 | else |
| 1719 | |
| 1720 | { |
| 1721 | FLUSH_BITS(ps_dec->s_bit_stream.u4_offset, ps_dec->s_bit_stream.u4_buf, ps_dec->s_bit_stream.u4_buf_nxt, 8, ps_dec->s_bit_stream.pu4_buf_aligned); |
| 1722 | |
| 1723 | } |
| 1724 | if(u4_start_code_found == 0) |
| 1725 | { |
| 1726 | impeg2d_next_start_code(ps_dec); |
Venkatarama Avadhani | 9e92a78 | 2017-04-06 12:08:34 +0530 | [diff] [blame^] | 1727 | /* In case a dec_pic_data call has not been made, the number of |
| 1728 | * bytes consumed in the previous header decode has to be |
| 1729 | * consumed. Not consuming it will result in zero bytes consumed |
| 1730 | * loops in case there are multiple headers and the second |
| 1731 | * or a future header has a resolution change/other error where |
| 1732 | * the bytes of the last header are not consumed. |
| 1733 | */ |
| 1734 | ps_dec->i4_bytes_consumed = (ps_dec->s_bit_stream.u4_offset + 7) >> 3; |
| 1735 | ps_dec->i4_bytes_consumed -= ((size_t)ps_dec->s_bit_stream.pv_bs_buf & 3); |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1736 | } |
| 1737 | } |
| 1738 | if((u4_start_code_found == 0) && (ps_dec->s_bit_stream.u4_offset > ps_dec->s_bit_stream.u4_max_offset)) |
| 1739 | { |
| 1740 | return IMPEG2D_FRM_HDR_START_CODE_NOT_FOUND; |
| 1741 | } |
| 1742 | |
| 1743 | } |
| 1744 | /* If the stream is MPEG-1 compliant stream */ |
| 1745 | else |
| 1746 | { |
| 1747 | while((u4_start_code_found == 0) && (ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset)) |
| 1748 | { |
| 1749 | u4_next_bits = impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN); |
| 1750 | |
| 1751 | if(impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN) == SEQUENCE_HEADER_CODE) |
| 1752 | { |
| 1753 | if(ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) |
| 1754 | { |
| 1755 | e_error = impeg2d_dec_seq_hdr(ps_dec); |
| 1756 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 1757 | { |
| 1758 | return e_error; |
| 1759 | } |
| 1760 | |
| 1761 | u4_start_code_found = 0; |
| 1762 | } |
| 1763 | else |
| 1764 | { |
| 1765 | return IMPEG2D_BITSTREAM_BUFF_EXCEEDED_ERR; |
| 1766 | } |
| 1767 | } |
| 1768 | else if((ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset) && (u4_next_bits == EXTENSION_START_CODE || u4_next_bits == USER_DATA_START_CODE)) |
| 1769 | { |
| 1770 | impeg2d_flush_ext_and_user_data(ps_dec); |
| 1771 | u4_start_code_found = 0; |
| 1772 | } |
| 1773 | |
| 1774 | |
| 1775 | else if ((impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN) == GOP_START_CODE) |
| 1776 | && (ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset)) |
| 1777 | { |
| 1778 | impeg2d_dec_grp_of_pic_hdr(ps_dec); |
| 1779 | impeg2d_flush_ext_and_user_data(ps_dec); |
| 1780 | u4_start_code_found = 0; |
| 1781 | } |
| 1782 | else if ((impeg2d_bit_stream_nxt(ps_stream,START_CODE_LEN) == PICTURE_START_CODE) |
| 1783 | && (ps_dec->s_bit_stream.u4_offset < ps_dec->s_bit_stream.u4_max_offset)) |
| 1784 | { |
| 1785 | |
| 1786 | e_error = impeg2d_dec_pic_hdr(ps_dec); |
| 1787 | if ((IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE != e_error) |
| 1788 | { |
| 1789 | return e_error; |
| 1790 | } |
| 1791 | impeg2d_flush_ext_and_user_data(ps_dec); |
| 1792 | impeg2d_pre_pic_dec_proc(ps_dec); |
| 1793 | impeg2d_dec_pic_data(ps_dec); |
| 1794 | impeg2d_post_pic_dec_proc(ps_dec); |
| 1795 | u4_start_code_found = 1; |
| 1796 | } |
| 1797 | else |
| 1798 | { |
| 1799 | FLUSH_BITS(ps_dec->s_bit_stream.u4_offset, ps_dec->s_bit_stream.u4_buf, ps_dec->s_bit_stream.u4_buf_nxt, 8, ps_dec->s_bit_stream.pu4_buf_aligned); |
| 1800 | } |
| 1801 | impeg2d_next_start_code(ps_dec); |
Venkatarama Avadhani | 9e92a78 | 2017-04-06 12:08:34 +0530 | [diff] [blame^] | 1802 | if (0 == u4_start_code_found) |
| 1803 | { |
| 1804 | /* In case a dec_pic_data call has not been made, the number of |
| 1805 | * bytes consumed in the previous header decode has to be |
| 1806 | * consumed. Not consuming it will result in zero bytes consumed |
| 1807 | * loops in case there are multiple headers and the second |
| 1808 | * or a future header has a resolution change/other error where |
| 1809 | * the bytes of the last header are not consumed. |
| 1810 | */ |
| 1811 | ps_dec->i4_bytes_consumed = (ps_dec->s_bit_stream.u4_offset + 7) >> 3; |
| 1812 | ps_dec->i4_bytes_consumed -= ((size_t)ps_dec->s_bit_stream.pv_bs_buf & 3); |
| 1813 | } |
Venkatarama Avadhani | aed24ee | 2015-03-11 10:08:57 +0530 | [diff] [blame] | 1814 | } |
| 1815 | if((u4_start_code_found == 0) && (ps_dec->s_bit_stream.u4_offset > ps_dec->s_bit_stream.u4_max_offset)) |
| 1816 | { |
| 1817 | return IMPEG2D_FRM_HDR_START_CODE_NOT_FOUND; |
| 1818 | } |
| 1819 | } |
| 1820 | |
| 1821 | return (IMPEG2D_ERROR_CODES_T)IVD_ERROR_NONE; |
| 1822 | } |