| /* ------------------------------------------------------------------ |
| * 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. |
| * ------------------------------------------------------------------- |
| */ |
| /** |
| This file contains application function interfaces to the AVC decoder library |
| and necessary type defitionitions and enumerations. |
| Naming convention for variables: |
| lower_case_with_under_line is syntax element in subclause 7.2 and 7.3 |
| noUnderLine or NoUnderLine is derived variables defined somewhere else in the draft |
| or introduced by this decoder library. |
| @publishedAll |
| */ |
| |
| #ifndef _AVCDEC_INT_H_ |
| #define _AVCDEC_INT_H_ |
| |
| #include "avcint_common.h" |
| #include "avcdec_api.h" |
| |
| |
| /** |
| Bitstream structure contains bitstream related parameters such as the pointer |
| to the buffer, the current byte position and bit position. |
| @publishedAll |
| */ |
| typedef struct tagDecBitstream |
| { |
| #if 0 |
| uint8 *bitstreamBuffer; /* pointer to buffer memory */ |
| int nal_size; /* size of the current NAL unit */ |
| int data_end_pos; /* bitstreamBuffer size in bytes */ |
| int read_pos; /* next position to read from bitstreamBuffer */ |
| int count_zeros; /* count number of consecutive zero */ |
| uint current_word; /* byte-swapped (MSB left) current word read from buffer */ |
| int bit_left; /* number of bit left in current_word */ |
| uint prev_word; /* in case for old data in previous buffer hasn't been flushed. */ |
| int prev_bit_left; /* bit left in the prev_word */ |
| //AVCDec_Status (*AVC_GetData)(uint8 **buffer,uint *size); /* callback to get more data */ |
| void *userData; |
| #else |
| uint8 *bitstreamBuffer; /* pointer to buffer memory */ |
| int nal_size; /* size of the current NAL unit */ |
| int data_end_pos; /* bitstreamBuffer size in bytes */ |
| int read_pos; /* next position to read from bitstreamBuffer */ |
| uint curr_word; /* byte-swapped (MSB left) current word read from buffer */ |
| int bit_left; /* number of bit left in current_word */ |
| uint next_word; /* in case for old data in previous buffer hasn't been flushed. */ |
| int incnt; /* bit left in the prev_word */ |
| int incnt_next; |
| int bitcnt; |
| void *userData; |
| #endif |
| } AVCDecBitstream; |
| |
| /** |
| This structure is the main object for AVC decoder library providing access to all |
| global variables. It is allocated at PVAVCInitDecoder and freed at PVAVCCleanUpDecoder. |
| @publishedAll |
| */ |
| typedef struct tagDecObject |
| { |
| |
| AVCCommonObj *common; |
| |
| AVCDecBitstream *bitstream; /* for current NAL */ |
| |
| /* sequence parameter set */ |
| AVCSeqParamSet *seqParams[32]; /* Array of pointers, get allocated at arrival of new seq_id */ |
| |
| /* picture parameter set */ |
| AVCPicParamSet *picParams[256]; /* Array of pointers to picture param set structures */ |
| |
| /* For internal operation, scratch memory for MV, prediction, transform, etc.*/ |
| uint ref_idx_l0[4]; /* [mbPartIdx], te(v) */ |
| uint ref_idx_l1[4]; |
| |
| /* function pointers */ |
| AVCDec_Status(*residual_block)(struct tagDecObject*, int, int, |
| int *, int *, int *); |
| /* Application control data */ |
| AVCHandle *avcHandle; |
| void (*AVC_DebugLog)(AVCLogType type, char *string1, char *string2); |
| /*bool*/ |
| uint debugEnable; |
| |
| } AVCDecObject; |
| |
| #endif /* _AVCDEC_INT_H_ */ |