1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 #ifndef PV_M4V_CONFIG_PARSER_H_INCLUDED 19 #define PV_M4V_CONFIG_PARSER_H_INCLUDED 20 21 #include "oscl_base.h" 22 #include "oscl_types.h" 23 24 #define USE_LATER 0 // for some code that will be needed in the future 25 26 #define MP4_INVALID_VOL_PARAM -1 27 #define SHORT_HEADER_MODE -4 28 29 30 #define VISUAL_OBJECT_SEQUENCE_START_CODE 0x01B0 31 #define VISUAL_OBJECT_SEQUENCE_END_CODE 0x01B1 32 #define VISUAL_OBJECT_START_CODE 0x01B5 33 #define VO_START_CODE 0x8 34 #define VO_HEADER_LENGTH 32 35 #define VOL_START_CODE 0x12 36 #define VOL_START_CODE_LENGTH 28 37 38 #define GROUP_START_CODE 0x01B3 39 #define GROUP_START_CODE_LENGTH 32 40 41 #define VOP_ID_CODE_LENGTH 5 42 #define VOP_TEMP_REF_CODE_LENGTH 16 43 44 #define USER_DATA_START_CODE 0x01B2 45 #define USER_DATA_START_CODE_LENGTH 32 46 47 #define SHORT_VIDEO_START_MARKER 0x20 48 #define SHORT_VIDEO_START_MARKER_LENGTH 22 49 50 typedef struct 51 { 52 uint8 *data; 53 uint32 numBytes; 54 uint32 bytePos; 55 uint32 bitBuf; 56 uint32 dataBitPos; 57 uint32 bitPos; 58 } mp4StreamType; 59 60 61 int16 ShowBits( 62 mp4StreamType *pStream, 63 uint8 ucNBits, 64 uint32 *pulOutData 65 ); 66 67 int16 FlushBits( 68 mp4StreamType *pStream, 69 uint8 ucNBits 70 ); 71 72 int16 ReadBits( 73 mp4StreamType *pStream, 74 uint8 ucNBits, 75 uint32 *pulOutData 76 ); 77 78 79 80 int16 ByteAlign( 81 mp4StreamType *pStream 82 ); 83 84 85 OSCL_IMPORT_REF int16 iDecodeVOLHeader(mp4StreamType *psBits, int32 *width, int32 *height, int32 *, int32 *, int32 *profilelevel); 86 OSCL_IMPORT_REF int16 iGetM4VConfigInfo(uint8 *buffer, int32 length, int32 *width, int32 *height, int32 *, int32 *); 87 int16 DecodeUserData(mp4StreamType *pStream); 88 OSCL_IMPORT_REF int16 iDecodeShortHeader(mp4StreamType *psBits, int32 *width, int32 *height, int32 *, int32 *); 89 OSCL_IMPORT_REF int16 iGetAVCConfigInfo(uint8 *buffer, int32 length, int32 *width, int32 *height, int32 *, int32 *, int32 *profile, int32 *level); 90 91 int32 FindNAL(uint8** nal_pnt, uint8* buffer, int32 length); 92 int16 DecodeSPS(mp4StreamType *psBits, int32 *width, int32 *height, int32 *display_width, int32 *display_height, int32 *profile_idc, int32 *level_idc); 93 #if USE_LATER 94 int32 DecodeHRD(mp4StreamType *psBits); 95 int32 DecodeVUI(mp4StreamType *psBits); 96 #endif 97 int32 DecodePPS(mp4StreamType *psBits); 98 99 void ue_v(mp4StreamType *psBits, uint32 *codeNum); 100 void se_v(mp4StreamType *psBits, int32 *value); 101 void Parser_EBSPtoRBSP(uint8 *nal_unit, int32 *size); 102 103 #endif //PV_M4V_CONFIG_PARSER_H_INCLUDED 104 105 106
