/****************************************************************************** * * Copyright (C) 2015 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ***************************************************************************** * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore */ #ifndef __IMPEG2_DEFS_H__ #define __IMPEG2_DEFS_H__ #include /****************************************************************************** * MPEG2 Start code and other code definitions *******************************************************************************/ #define START_CODE_PREFIX 0x000001 #define SEQUENCE_HEADER_CODE 0x000001B3 #define EXTENSION_START_CODE 0x000001B5 #define USER_DATA_START_CODE 0x000001B2 #define GOP_START_CODE 0x000001B8 #define PICTURE_START_CODE 0x00000100 #define SEQUENCE_END_CODE 0x000001B7 #define RESERVED_START_CODE 0x000001B0 #define MB_ESCAPE_CODE 0x008 /****************************************************************************** * MPEG2 Length of various codes definitions *******************************************************************************/ #define START_CODE_LEN 32 #define START_CODE_PREFIX_LEN 24 #define MB_ESCAPE_CODE_LEN 11 #define EXT_ID_LEN 4 #define MB_QUANT_SCALE_CODE_LEN 5 #define MB_DCT_TYPE_LEN 1 #define MB_MOTION_TYPE_LEN 2 #define BYTE_LEN 8 /****************************************************************************** * MPEG1 code definitions *******************************************************************************/ #define MB_STUFFING_CODE 0x00F /****************************************************************************** * MPEG1 Length of various codes definitions *******************************************************************************/ #define MB_STUFFING_CODE_LEN 11 /****************************************************************************** * MPEG2 MB definitions *******************************************************************************/ #define MPEG2_INTRA_MB 0x04 #define MPEG2_INTRAQ_MB 0x44 #define MPEG2_INTER_MB 0x28 #define MB_MOTION_BIDIRECT 0x30 #define MB_INTRA_OR_PATTERN 0x0C /****************************************************************************** * Tools definitions *******************************************************************************/ #define SPATIAL_SCALABILITY 0x01 #define TEMPORAL_SCALABILITY 0x03 /****************************************************************************** * Extension IDs definitions *******************************************************************************/ #define SEQ_DISPLAY_EXT_ID 0x02 #define SEQ_SCALABLE_EXT_ID 0x05 #define QUANT_MATRIX_EXT_ID 0x03 #define COPYRIGHT_EXT_ID 0x04 #define PIC_DISPLAY_EXT_ID 0x07 #define PIC_SPATIAL_SCALABLE_EXT_ID 0x09 #define PIC_TEMPORAL_SCALABLE_EXT_ID 0x0A #define CAMERA_PARAM_EXT_ID 0x0B #define ITU_T_EXT_ID 0x0C /****************************************************************************** * Extension IDs Length definitions *******************************************************************************/ #define CAMERA_PARAMETER_EXTENSION_LEN 377 #define COPYRIGHT_EXTENSION_LEN 88 #define GROUP_OF_PICTURE_LEN 59 /****************************************************************************** * MPEG2 Picture structure definitions *******************************************************************************/ #define TOP_FIELD 1 #define BOTTOM_FIELD 2 #define FRAME_PICTURE 3 /****************************************************************************** * MPEG2 Profile definitions *******************************************************************************/ #define MPEG2_SIMPLE_PROFILE 0x05 #define MPEG2_MAIN_PROFILE 0x04 /****************************************************************************** * MPEG2 Level definitions *******************************************************************************/ #define MPEG2_LOW_LEVEL 0x0a #define MPEG2_MAIN_LEVEL 0x08 /****************************************************************************** * MPEG2 Prediction types *******************************************************************************/ #define FIELD_PRED 0 #define FRAME_PRED 1 #define DUAL_PRED 2 #define RESERVED -1 #define MC_16X8_PRED 3 /***************************************************************************** * MPEG2 Motion vector format ******************************************************************************/ #define FIELD_MV 0 #define FRAME_MV 1 /******************************************************************************/ /* General Video related definitions */ /******************************************************************************/ #define BLK_SIZE 8 #define NUM_COEFFS ((BLK_SIZE)*(BLK_SIZE)) #define LUMA_BLK_SIZE (2 * (BLK_SIZE)) #define CHROMA_BLK_SIZE (BLK_SIZE) #define BLOCKS_IN_MB 6 #define MB_SIZE 16 #define MB_CHROMA_SIZE 8 #define NUM_PELS_IN_BLOCK 64 #define NUM_LUMA_BLKS 4 #define NUM_CHROMA_BLKS 2 #define MAX_COLR_COMPS 3 #define Y_LUMA 0 #define U_CHROMA 1 #define V_CHROMA 2 #define MB_LUMA_MEM_SIZE ((MB_SIZE) * (MB_SIZE)) #define MB_CHROMA_MEM_SIZE ((MB_SIZE/2) * (MB_SIZE/2)) #define BITS_IN_INT 32 /******************************************************************************/ /* MPEG2 Motion compensation related definitions */ /******************************************************************************/ #define REF_FRM_MB_WIDTH 18 #define REF_FRM_MB_HEIGHT 18 #define REF_FLD_MB_HEIGHT 10 #define REF_FLD_MB_WIDTH 18 /******************************************************************************/ /* Maximum number of bits per MB */ /******************************************************************************/ #define I_MB_BIT_SIZE 90 #define P_MB_BIT_SIZE 90 #define B_MB_BIT_SIZE 150 /******************************************************************************/ /* Aspect ratio related definitions */ /******************************************************************************/ #define MPG1_NTSC_4_3 0x8 #define MPG1_PAL_4_3 0xc #define MPG1_NTSC_16_9 0x6 #define MPG1_PAL_16_9 0x3 #define MPG1_1_1 0x1 #define MPG2_4_3 0x2 #define MPG2_16_9 0x3 #define MPG2_1_1 0x1 /******************************************************************************/ /* Inverse Quantizer Output range */ /******************************************************************************/ #define IQ_OUTPUT_MAX 2047 #define IQ_OUTPUT_MIN -2048 /******************************************************************************/ /* IDCT Output range */ /******************************************************************************/ #define IDCT_OUTPUT_MAX 255 #define IDCT_OUTPUT_MIN -256 /******************************************************************************/ /* Output pixel range */ /******************************************************************************/ #define PEL_VALUE_MAX 255 #define PEL_VALUE_MIN 0 /******************************************************************************/ /* inv scan types */ /******************************************************************************/ #define ZIG_ZAG_SCAN 0 #define VERTICAL_SCAN 1 /******************************************************************************/ /* Related VLD codes */ /******************************************************************************/ #define ESC_CODE_VALUE 0x0058 #define EOB_CODE_VALUE 0x07d0 #define END_OF_BLOCK 0x01 #define ESCAPE_CODE 0x06 #define END_OF_BLOCK_ZERO 0x01ff #define END_OF_BLOCK_ONE 0x01ff /******************** Idct Specific ***************/ #define TRANS_SIZE_8 8 #define IDCT_STG1_SHIFT 12 #define IDCT_STG2_SHIFT 16 #define IDCT_STG1_ROUND ((1 << IDCT_STG1_SHIFT) >> 1) #define IDCT_STG2_ROUND ((1 << IDCT_STG2_SHIFT) >> 1) /****************************************************************************** * Sample Version Definitions *******************************************************************************/ #define SAMPLE_VERS_MAX_FRAMES_DECODE 999 #define MAX_FRAME_BUFFER 7 /* vop coding type */ typedef enum { I_PIC = 1, P_PIC, B_PIC, D_PIC } e_pic_type_t; typedef enum { MPEG_2_VIDEO, MPEG_1_VIDEO } e_video_type_t; typedef enum { FORW, BACK, BIDIRECT } e_pred_direction_t; typedef enum { TOP, BOTTOM } e_field_t; /* Motion vectors (first/second) */ enum { FIRST, SECOND, THIRD, FOURTH }; enum { MV_X, MV_Y }; /* Enumeration defining the various kinds of interpolation possible in motion compensation */ typedef enum { FULL_XFULL_Y, FULL_XHALF_Y, HALF_XFULL_Y, HALF_XHALF_Y } e_sample_type_t; typedef enum { /* Params of the reference buffer used as input to MC */ /* frame prediction in P frame picture */ MC_FRM_FW_OR_BK_1MV, /* field prediction in P frame picture */ MC_FRM_FW_OR_BK_2MV, /* frame prediction in B frame picture */ MC_FRM_FW_AND_BK_2MV, /* field prediction in B frame picture */ MC_FRM_FW_AND_BK_4MV, /* dual prime prediction in P frame picture */ MC_FRM_FW_DUAL_PRIME_1MV, /* frame prediction in P field picture */ MC_FLD_FW_OR_BK_1MV, /* 16x8 prediction in P field picture */ MC_FLD_FW_OR_BK_2MV, /* field prediction in B field picture */ MC_FLD_FW_AND_BK_2MV, /* 16x8 prediction in B field picture */ MC_FLD_FW_AND_BK_4MV, /* dual prime prediction in P field picture */ MC_FLD_FW_DUAL_PRIME_1MV, } e_mb_type_t; #endif /* __IMPEG2_DEFS_H__ */