1 /*-------------------------------------------------------------------------- 2 Copyright (c) 2010-2012, Code Aurora Forum. All rights reserved. 3 4 Redistribution and use in source and binary forms, with or without 5 modification, are permitted provided that the following conditions are met: 6 * Redistributions of source code must retain the above copyright 7 notice, this list of conditions and the following disclaimer. 8 * Redistributions in binary form must reproduce the above copyright 9 notice, this list of conditions and the following disclaimer in the 10 documentation and/or other materials provided with the distribution. 11 * Neither the name of Code Aurora nor 12 the names of its contributors may be used to endorse or promote 13 products derived from this software without specific prior written 14 permission. 15 16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19 NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 20 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 21 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 22 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 23 OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 25 OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 26 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 --------------------------------------------------------------------------*/ 28 #ifndef H264_UTILS_H 29 #define H264_UTILS_H 30 31 /*======================================================================== 32 33 O p e n M M 34 U t i l i t i e s a n d H e l p e r R o u t i n e s 35 36 *//** @file H264_Utils.h 37 This module contains H264 video decoder utilities and helper routines. 38 39 *//*====================================================================== */ 40 41 /* ======================================================================= 42 43 INCLUDE FILES FOR MODULE 44 45 ========================================================================== */ 46 #include <stdio.h> 47 #include "Map.h" 48 #include "qtypes.h" 49 #include "OMX_Core.h" 50 #include "OMX_QCOMExtns.h" 51 52 #define STD_MIN(x,y) (((x) < (y)) ? (x) : (y)) 53 54 #define OMX_CORE_720P_HEIGHT 720 55 #define OMX_CORE_720P_WIDTH 1280 56 57 #define PANSCAN_HDLR 58 59 /* ======================================================================= 60 61 DATA DECLARATIONS 62 63 ========================================================================== */ 64 65 /* ----------------------------------------------------------------------- 66 ** Constant / Define Declarations 67 ** ----------------------------------------------------------------------- */ 68 // Common format block header definitions 69 #define MT_VIDEO_META_STREAM_HEADER 0x00 70 #define MT_VIDEO_MEDIA_STREAM_HEADER 0x01 71 #define MT_VIDEO_META_MEDIA_STREAM_HEADER 0x02 72 73 // H.264 format block header definitions 74 #define MT_VIDEO_H264_ACCESS_UNIT_FORMAT 0x00 75 #define MT_VIDEO_H264_NAL_FORMT 0x01 76 #define MT_VIDEO_H264_BYTE_FORMAT 0x02 77 #define MT_VIDEO_H264_BYTE_STREAM_FORMAT 0x00 78 #define MT_VIDEO_H264_NAL_UNIT_STREAM_FORMAT 0x01 79 #define MT_VIDEO_H264_FORMAT_BLOCK_HEADER_SIZE 18 80 81 // MPEG-4 format block header definitions 82 #define MT_VIDEO_MPEG4_VOP_FORMAT 0x00 83 #define MT_VIDEO_MPEG4_SLICE_FORMAT 0x01 84 #define MT_VIDEO_MPEG4_BYTE_FORMAT 0x02 85 #define MT_VIDEO_MPEG4_FORMAT_BLOCK_HEADER_SIZE 15 86 87 // H.263 format block header definitions 88 #define MT_VIDEO_H263_PICTURE_FORMAT 0x00 89 #define MT_VIDEO_H263_GOB_FORMAT 0x01 90 #define MT_VIDEO_H263_SLICE_STRUCTURED_FORMAT 0x02 91 #define MT_VIDEO_H263_BYTE_FORMAT 0x03 92 #define MT_VIDEO_H263_FORMAT_BLOCK_HEADER_SIZE 16 93 94 /* ======================================================================= 95 ** Function Declarations 96 ** ======================================================================= */ 97 98 /* ----------------------------------------------------------------------- 99 ** Type Declarations 100 ** ----------------------------------------------------------------------- */ 101 102 // This type is used when parsing an H.264 bitstream to collect H.264 NAL 103 // units that need to go in the meta data. 104 struct H264ParamNalu { 105 uint32 picSetID; 106 uint32 seqSetID; 107 uint32 picOrderCntType; 108 bool frameMbsOnlyFlag; 109 bool picOrderPresentFlag; 110 uint32 picWidthInMbsMinus1; 111 uint32 picHeightInMapUnitsMinus1; 112 uint32 log2MaxFrameNumMinus4; 113 uint32 log2MaxPicOrderCntLsbMinus4; 114 bool deltaPicOrderAlwaysZeroFlag; 115 //std::vector<uint8> nalu; 116 uint32 nalu; 117 uint32 crop_left; 118 uint32 crop_right; 119 uint32 crop_top; 120 uint32 crop_bot; 121 }; 122 //typedef map<uint32, H264ParamNalu> H264ParamNaluSet; 123 typedef Map<uint32, H264ParamNalu *> H264ParamNaluSet; 124 125 typedef enum { 126 NALU_TYPE_UNSPECIFIED = 0, 127 NALU_TYPE_NON_IDR, 128 NALU_TYPE_PARTITION_A, 129 NALU_TYPE_PARTITION_B, 130 NALU_TYPE_PARTITION_C, 131 NALU_TYPE_IDR, 132 NALU_TYPE_SEI, 133 NALU_TYPE_SPS, 134 NALU_TYPE_PPS, 135 NALU_TYPE_ACCESS_DELIM, 136 NALU_TYPE_EOSEQ, 137 NALU_TYPE_EOSTREAM, 138 NALU_TYPE_FILLER_DATA, 139 NALU_TYPE_RESERVED, 140 } NALU_TYPE; 141 142 // NAL header information 143 typedef struct { 144 uint32 nal_ref_idc; 145 uint32 nalu_type; 146 uint32 forbidden_zero_bit; 147 } NALU; 148 149 // This structure contains persistent information about an H.264 stream as it 150 // is parsed. 151 //struct H264StreamInfo { 152 // H264ParamNaluSet pic; 153 // H264ParamNaluSet seq; 154 //}; 155 156 class extra_data_parser; 157 158 class RbspParser 159 /****************************************************************************** 160 ** This class is used to convert an H.264 NALU (network abstraction layer 161 ** unit) into RBSP (raw byte sequence payload) and extract bits from it. 162 *****************************************************************************/ 163 { 164 public: 165 RbspParser (const uint8 *begin, const uint8 *end); 166 167 virtual ~RbspParser (); 168 169 uint32 next (); 170 void advance (); 171 uint32 u (uint32 n); 172 uint32 ue (); 173 int32 se (); 174 175 private: 176 const uint8 *begin, *end; 177 int32 pos; 178 uint32 bit; 179 uint32 cursor; 180 bool advanceNeeded; 181 }; 182 183 class H264_Utils 184 { 185 public: 186 H264_Utils(); 187 ~H264_Utils(); 188 void initialize_frame_checking_environment(); 189 void allocate_rbsp_buffer(uint32 inputBufferSize); 190 bool isNewFrame(OMX_BUFFERHEADERTYPE *p_buf_hdr, 191 OMX_IN OMX_U32 size_of_nal_length_field, 192 OMX_OUT OMX_BOOL &isNewFrame); 193 uint32 nalu_type; 194 195 private: 196 boolean extract_rbsp(OMX_IN OMX_U8 *buffer, 197 OMX_IN OMX_U32 buffer_length, 198 OMX_IN OMX_U32 size_of_nal_length_field, 199 OMX_OUT OMX_U8 *rbsp_bistream, 200 OMX_OUT OMX_U32 *rbsp_length, 201 OMX_OUT NALU *nal_unit); 202 203 unsigned m_height; 204 unsigned m_width; 205 H264ParamNaluSet pic; 206 H264ParamNaluSet seq; 207 uint8 *m_rbspBytes; 208 NALU m_prv_nalu; 209 bool m_forceToStichNextNAL; 210 bool m_au_data; 211 }; 212 213 class perf_metrics 214 { 215 public: 216 perf_metrics() : 217 start_time(0), 218 proc_time(0), 219 active(false) 220 { 221 }; 222 ~perf_metrics() {}; 223 void start(); 224 void stop(); 225 void end(OMX_U32 units_cntr = 0); 226 void reset(); 227 OMX_U64 processing_time_us(); 228 private: 229 inline OMX_U64 get_act_time(); 230 OMX_U64 start_time; 231 OMX_U64 proc_time; 232 bool active; 233 }; 234 235 #define EMULATION_PREVENTION_THREE_BYTE 0x03 236 #define MAX_CPB_COUNT 32 237 #define NO_PAN_SCAN_BIT 0x00000100 238 #define MAX_PAN_SCAN_RECT 3 239 #define VALID_TS(ts) ((ts < LLONG_MAX)? true : false) 240 #define NALU_TYPE_VUI (NALU_TYPE_RESERVED + 1) 241 242 enum SEI_PAYLOAD_TYPE 243 { 244 BUFFERING_PERIOD = 0, 245 PIC_TIMING, 246 PAN_SCAN_RECT, 247 FILLER_PAYLOAD, 248 USER_DATA_REGISTERED_ITU_T_T35, 249 USER_DATA_UNREGISTERED, 250 RECOVERY_POINT, 251 DEC_REF_PIC_MARKING_REPETITION, 252 SPARE_PIC, 253 SCENE_INFO, 254 SUB_SEQ_INFO, 255 SUB_SEQ_LAYER_CHARACTERISTICS, 256 SUB_SEQ_CHARACTERISTICS, 257 FULL_FRAME_FREEZE, 258 FULL_FRAME_FREEZE_RELEASE, 259 FULL_FRAME_SNAPSHOT, 260 PROGRESSIVE_REFINEMENT_SEGMENT_START, 261 PROGRESSIVE_REFINEMENT_SEGMENT_END, 262 SEI_PAYLOAD_FRAME_PACKING_ARRANGEMENT = 0x2D 263 }; 264 265 typedef struct 266 { 267 OMX_U32 cpb_cnt; 268 OMX_U8 bit_rate_scale; 269 OMX_U8 cpb_size_scale; 270 OMX_U32 bit_rate_value[MAX_CPB_COUNT]; 271 OMX_U32 cpb_size_value[MAX_CPB_COUNT]; 272 OMX_U8 cbr_flag[MAX_CPB_COUNT]; 273 OMX_U8 initial_cpb_removal_delay_length; 274 OMX_U8 cpb_removal_delay_length; 275 OMX_U8 dpb_output_delay_length; 276 OMX_U8 time_offset_length; 277 } h264_hrd_param; 278 279 typedef struct 280 { 281 OMX_U32 aspect_ratio_idc; 282 OMX_U32 aspect_ratio_x; 283 OMX_U32 aspect_ratio_y; 284 } h264_aspect_ratio_info; 285 286 typedef struct 287 { 288 OMX_U8 aspect_ratio_info_present_flag; 289 h264_aspect_ratio_info aspect_ratio_info; 290 OMX_U8 timing_info_present_flag; 291 OMX_U32 num_units_in_tick; 292 OMX_U32 time_scale; 293 OMX_U8 fixed_frame_rate_flag; 294 OMX_U8 nal_hrd_parameters_present_flag; 295 h264_hrd_param nal_hrd_parameters; 296 OMX_U8 vcl_hrd_parameters_present_flag; 297 h264_hrd_param vcl_hrd_parameters; 298 OMX_U8 low_delay_hrd_flag; 299 OMX_U8 pic_struct_present_flag; 300 OMX_S64 fixed_fps_prev_ts; 301 } h264_vui_param; 302 303 typedef struct 304 { 305 OMX_U32 cpb_removal_delay; 306 OMX_U32 dpb_output_delay; 307 OMX_U8 pic_struct; 308 OMX_U32 num_clock_ts; 309 bool clock_ts_flag; 310 OMX_U8 ct_type; 311 OMX_U32 nuit_field_based_flag; 312 OMX_U8 counting_type; 313 OMX_U8 full_timestamp_flag; 314 OMX_U8 discontinuity_flag; 315 OMX_U8 cnt_dropped_flag; 316 OMX_U32 n_frames; 317 OMX_U32 seconds_value; 318 OMX_U32 minutes_value; 319 OMX_U32 hours_value; 320 OMX_S32 time_offset; 321 bool is_valid; 322 } h264_sei_pic_timing; 323 324 typedef struct 325 { 326 OMX_U32 initial_cpb_removal_delay[MAX_CPB_COUNT]; 327 OMX_U32 initial_cpb_removal_delay_offset[MAX_CPB_COUNT]; 328 OMX_U32 au_cntr; 329 OMX_S64 reference_ts; 330 bool is_valid; 331 } h264_sei_buf_period; 332 333 typedef struct 334 { 335 OMX_U32 rect_id; 336 OMX_U8 rect_cancel_flag; 337 OMX_U32 cnt; 338 OMX_S32 rect_left_offset[MAX_PAN_SCAN_RECT]; 339 OMX_S32 rect_right_offset[MAX_PAN_SCAN_RECT]; 340 OMX_S32 rect_top_offset[MAX_PAN_SCAN_RECT]; 341 OMX_S32 rect_bottom_offset[MAX_PAN_SCAN_RECT]; 342 OMX_U32 rect_repetition_period; 343 } h264_pan_scan; 344 345 #ifdef PANSCAN_HDLR 346 template <class NODE_STRUCT> 347 class omx_dl_list 348 { 349 public: 350 omx_dl_list() { head = tail = NULL; } ; 351 ~omx_dl_list() {}; 352 void add_multiple(NODE_STRUCT *data_arr, int data_num); 353 NODE_STRUCT *remove_first(); 354 NODE_STRUCT *remove_last(); 355 void add_last(NODE_STRUCT *data_ptr); 356 NODE_STRUCT *watch_first(); 357 NODE_STRUCT *watch_last(); 358 private: 359 NODE_STRUCT *head, *tail; 360 }; 361 362 class panscan_handler 363 { 364 public: 365 panscan_handler(); 366 ~panscan_handler(); 367 bool initialize(int num_data); 368 h264_pan_scan *get_free(); 369 h264_pan_scan *get_populated(OMX_S64 frame_ts); 370 void update_last(OMX_S64 frame_ts); 371 private: 372 typedef struct PANSCAN_NODE 373 { 374 h264_pan_scan pan_scan_param; 375 OMX_S64 start_ts, end_ts; 376 bool active; 377 PANSCAN_NODE *next, *prev; 378 } PANSCAN_NODE; 379 omx_dl_list<PANSCAN_NODE> panscan_used; 380 omx_dl_list<PANSCAN_NODE> panscan_free; 381 PANSCAN_NODE *panscan_data; 382 }; 383 384 #if 1 // Debug panscan data 385 386 #define PRINT_PANSCAN_PARAM(H264_PARAM) 387 #define PRINT_PANSCAN_DATA(NODE) 388 389 #else 390 391 #define PRINT_PANSCAN_PARAM(H264_PARAM) \ 392 do {\ 393 ALOGE("%s(): left_off(%ld) right_off(%ld) top_off(%ld) bottom_off(%ld)",\ 394 __FUNCTION__,\ 395 (H264_PARAM).rect_left_offset[0],\ 396 (H264_PARAM).rect_right_offset[0],\ 397 (H264_PARAM).rect_top_offset[0],\ 398 (H264_PARAM).rect_bottom_offset[0]);\ 399 }while(0) 400 401 #define PRINT_PANSCAN_DATA(NODE) \ 402 do {\ 403 if (NODE) {\ 404 ALOGE("%s(): PANSCAN DATA start_ts(%lld) end_ts(%lld)", __FUNCTION__,\ 405 (NODE)->start_ts, (NODE)->end_ts);\ 406 PRINT_PANSCAN_PARAM(NODE->pan_scan_param);\ 407 }\ 408 }while(0) 409 410 #endif // End debug panscan data 411 412 #endif 413 414 class h264_stream_parser 415 { 416 public: 417 h264_stream_parser(); 418 ~h264_stream_parser(); 419 void reset(); 420 void fill_pan_scan_data(OMX_QCOM_PANSCAN *dest_pan_scan, OMX_S64 timestamp); 421 void fill_aspect_ratio_info(OMX_QCOM_ASPECT_RATIO *dest_aspect_ratio); 422 void parse_nal(OMX_U8* data_ptr, OMX_U32 data_len, 423 OMX_U32 nal_type = NALU_TYPE_UNSPECIFIED, 424 bool enable_emu_sc = true); 425 OMX_S64 process_ts_with_sei_vui(OMX_S64 timestamp); 426 void get_frame_pack_data(OMX_QCOM_FRAME_PACK_ARRANGEMENT *frame_pack); 427 bool is_mbaff(); 428 void get_frame_rate(OMX_U32 *frame_rate); 429 #ifdef PANSCAN_HDLR 430 void update_panscan_data(OMX_S64 timestamp); 431 #endif 432 private: 433 void init_bitstream(OMX_U8* data, OMX_U32 size); 434 OMX_U32 extract_bits(OMX_U32 n); 435 inline bool more_bits(); 436 void read_word(); 437 OMX_U32 uev(); 438 OMX_S32 sev(); 439 OMX_S32 iv(OMX_U32 n_bits); 440 void parse_sps(); 441 void parse_vui(bool vui_in_extradata = true); 442 void aspect_ratio_info(); 443 void hrd_parameters(h264_hrd_param *hrd_param); 444 void parse_sei(); 445 void sei_buffering_period(); 446 void sei_picture_timing(); 447 void sei_pan_scan(); 448 void scaling_list(OMX_U32 size_of_scaling_list); 449 450 void print_pan_data(h264_pan_scan *pan_scan_param); 451 void print_frame_pack(); 452 453 OMX_U32 get_nal_unit_type(OMX_U32 *nal_unit_type); 454 OMX_S64 calculate_buf_period_ts(OMX_S64 timestamp); 455 OMX_S64 calculate_fixed_fps_ts(OMX_S64 timestamp, OMX_U32 DeltaTfiDivisor); 456 void parse_frame_pack(); 457 458 OMX_U32 curr_32_bit; 459 OMX_U32 bits_read; 460 OMX_U32 zero_cntr; 461 OMX_U32 emulation_code_skip_cntr; 462 OMX_U8* bitstream; 463 OMX_U32 bitstream_bytes; 464 OMX_U32 frame_rate; 465 bool emulation_sc_enabled; 466 467 h264_vui_param vui_param; 468 h264_sei_buf_period sei_buf_period; 469 h264_sei_pic_timing sei_pic_timing; 470 #ifdef PANSCAN_HDLR 471 panscan_handler *panscan_hdl; 472 #else 473 h264_pan_scan panscan_param; 474 #endif 475 OMX_QCOM_FRAME_PACK_ARRANGEMENT frame_packing_arrangement; 476 bool mbaff_flag; 477 }; 478 479 #endif /* H264_UTILS_H */ 480
