armicjp_bitstream.h

The OpenMAX DL (Development Layer) APIs contain a comprehensive set of audio, video, signal processi

#ifndef __ARM_ICJP_BITSTREAM_H__
#define __ARM_ICJP_BITSTREAM_H__

#include "armCOMM_Bitstream.h"

#define ARM_JPEGMarkerErr	(OMX_U16)(0xFFFE)

/* Bit parsing on JPEG non Entropy Coded Segment */
OMX_U8  armICJP_GetByte(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset
);

OMXVoid armICJP_SkipBytes(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset, 
    OMX_INT bytes
);

OMX_U16 armICJP_GetHWord(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset
);

/* Bit parsing on JPEG non Entropy Coded Segment */
OMX_U16 armICJP_ReadBits(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset, 
    OMX_INT bits
);

OMX_U16 armICJP_PeekBits(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset, 
    OMX_INT bits
);

/* Bit parsing on JPEG Entropy Coded Segment */
OMX_U32 armICJP_ReadEntropyBits(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset, 
    OMX_INT bits
);

OMX_U16 armICJP_PeekEntropyBits(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset, 
    OMX_INT bits,
	OMX_INT *pBitsRead
);

OMXVoid armICJP_SkipEntropyBits(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset, 
    OMX_INT bits
);

/* Huffman Decode on JPEG Entropy Coded Segment */
OMX_U16 armICJP_UnPackVLC16(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset, 
    const ARM_VLC32 *pCodeBook
);

OMX_U16 armICJP_ReadValidBits(
    const OMX_U8 **ppBitStream, 
    OMX_INT *pOffset, 
    OMX_INT bits,
	OMX_INT *pBitsRead
);

#endif /* __ARM_ICJP_BITSTREAM_H__ */