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Diffstat (limited to 'media/libstagefright/codecs/avc/dec/src/avcdec_bitstream.h')
| -rw-r--r-- | media/libstagefright/codecs/avc/dec/src/avcdec_bitstream.h | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/media/libstagefright/codecs/avc/dec/src/avcdec_bitstream.h b/media/libstagefright/codecs/avc/dec/src/avcdec_bitstream.h deleted file mode 100644 index bd1bc59..0000000 --- a/media/libstagefright/codecs/avc/dec/src/avcdec_bitstream.h +++ /dev/null @@ -1,125 +0,0 @@ -/* ------------------------------------------------------------------ - * 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 bitstream related functions. -@publishedAll -*/ - -#ifndef _AVCDEC_BITSTREAM_H_ -#define _AVCDEC_BITSTREAM_H_ - -#include "avcdec_lib.h" - -#define WORD_SIZE 32 /* this can vary, default to 32 bit for now */ - -#ifndef __cplusplus - -#define AVC_GETDATA(x,y) userData->AVC_GetData(x,y) - -#endif - -#ifdef __cplusplus -extern "C" -{ -#endif -#define BitstreamFlushBits(A,B) {(A)->bitcnt += (B); (A)->incnt -= (B); (A)->curr_word <<= (B);} - - AVCDec_Status AVC_BitstreamFillCache(AVCDecBitstream *stream); - /** - This function populates bitstream structure. - \param "stream" "Pointer to bitstream structure." - \param "buffer" "Pointer to the bitstream buffer." - \param "size" "Size of the buffer." - \param "nal_size" "Size of the NAL unit." - \param "resetall" "Flag for reset everything." - \return "AVCDEC_SUCCESS for success and AVCDEC_FAIL for fail." - */ - AVCDec_Status BitstreamInit(AVCDecBitstream *stream, uint8 *buffer, int size); - - /** - This function reads next aligned word and remove the emulation prevention code - if necessary. - \param "stream" "Pointer to bitstream structure." - \return "Next word." - */ - uint BitstreamNextWord(AVCDecBitstream *stream); - - /** - This function reads nBits bits from the current position and advance the pointer. - \param "stream" "Pointer to bitstream structure." - \param "nBits" "Number of bits to be read." - \param "code" "Point to the read value." - \return "AVCDEC_SUCCESS if successed, AVCDEC_FAIL if number of bits - is greater than the word-size, AVCDEC_PACKET_LOSS or - AVCDEC_NO_DATA if callback to get data fails." - */ - AVCDec_Status BitstreamReadBits(AVCDecBitstream *stream, int nBits, uint *code); - - /** - This function shows nBits bits from the current position without advancing the pointer. - \param "stream" "Pointer to bitstream structure." - \param "nBits" "Number of bits to be read." - \param "code" "Point to the read value." - \return "AVCDEC_SUCCESS if successed, AVCDEC_FAIL if number of bits - is greater than the word-size, AVCDEC_NO_DATA if it needs - to callback to get data." - */ - AVCDec_Status BitstreamShowBits(AVCDecBitstream *stream, int nBits, uint *code); - - - /** - This function flushes nBits bits from the current position. - \param "stream" "Pointer to bitstream structure." - \param "nBits" "Number of bits to be read." - \return "AVCDEC_SUCCESS if successed, AVCDEC_FAIL if number of bits - is greater than the word-size It will not call back to get - more data. Users should call BitstreamShowBits to determine - how much they want to flush." - */ - - /** - This function read 1 bit from the current position and advance the pointer. - \param "stream" "Pointer to bitstream structure." - \param "nBits" "Number of bits to be read." - \param "code" "Point to the read value." - \return "AVCDEC_SUCCESS if successed, AVCDEC_FAIL if number of bits - is greater than the word-size, AVCDEC_PACKET_LOSS or - AVCDEC_NO_DATA if callback to get data fails." - */ - AVCDec_Status BitstreamRead1Bit(AVCDecBitstream *stream, uint *code); - - /** - This function checks whether the current bit position is byte-aligned or not. - \param "stream" "Pointer to the bitstream structure." - \return "TRUE if byte-aligned, FALSE otherwise." - */ - bool byte_aligned(AVCDecBitstream *stream); - AVCDec_Status BitstreamByteAlign(AVCDecBitstream *stream); - /** - This function checks whether there are more RBSP data before the trailing bits. - \param "stream" "Pointer to the bitstream structure." - \return "TRUE if yes, FALSE otherwise." - */ - bool more_rbsp_data(AVCDecBitstream *stream); - - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - -#endif /* _AVCDEC_BITSTREAM_H_ */ |