| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * 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. |
| * ------------------------------------------------------------------- |
| */ |
| /* |
| |
| Pathname: s_BITS.h |
| |
| ------------------------------------------------------------------------------ |
| REVISION HISTORY |
| |
| Description: Remove unused field. |
| |
| Description: Change buffer type from UInt to UInt32, makes API much easier |
| to understand and describe, and getbits is faster on TI C55X |
| if the buffer is 32 bits instead of 16. |
| |
| Description: Change buffer type from UInt32 to UChar. |
| |
| Who: Date: |
| Description: |
| |
| ------------------------------------------------------------------------------ |
| INCLUDE DESCRIPTION |
| |
| This include file defines the structure, BITS |
| |
| ------------------------------------------------------------------------------ |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| ; CONTINUE ONLY IF NOT ALREADY DEFINED |
| ----------------------------------------------------------------------------*/ |
| #ifndef S_BITS_H |
| #define S_BITS_H |
| |
| /*---------------------------------------------------------------------------- |
| ; INCLUDES |
| ----------------------------------------------------------------------------*/ |
| #include "pv_audio_type_defs.h" |
| |
| /*---------------------------------------------------------------------------- |
| ; MACROS |
| ; Define module specific macros here |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; DEFINES |
| ; Include all pre-processor statements here. |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; EXTERNAL VARIABLES REFERENCES |
| ; Declare variables used in this module but defined elsewhere |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; SIMPLE TYPEDEF'S |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; ENUMERATED TYPEDEF'S |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; STRUCTURES TYPEDEF'S |
| ----------------------------------------------------------------------------*/ |
| /* |
| * Name: BITS |
| * Description: Holds information for processing the input data buffer |
| * as a "stream". The data is in packed format. |
| * Fields: |
| * pBuffer - pointer to the beginning of the buffer. If the data type of |
| * this changes, make sure to update the constants in ibstream.h |
| * usedBits - number of bits read thus far from the buffer. Bit 0 is |
| * the LSB of pBuffer[0]. |
| * availableBits - number of bits available in the buffer. |
| * byteAlignOffset - used with ADTS in case sync word is not aligned |
| on a boundary. |
| */ |
| typedef struct |
| { |
| UChar *pBuffer; |
| UInt usedBits; /* Keep this unsigned so can go to 65536 */ |
| UInt availableBits; /* Ditto */ |
| UInt inputBufferCurrentLength; /* Ditto */ |
| Int byteAlignOffset; /* Used in ADTS. See find_adts_syncword() */ |
| } BITS; |
| |
| /*---------------------------------------------------------------------------- |
| ; GLOBAL FUNCTION DEFINITIONS |
| ; Function Prototype declaration |
| ----------------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------------- |
| ; END |
| ----------------------------------------------------------------------------*/ |
| #endif |
| |
