SRiffFileI Class Reference

Reads RIFF file format. More...

#include <bsapi.h>

Inheritance diagram for SRiffFileI:

List of all members.

Public Member Functions
virtual bool BSAPI_METHOD	Open (const char *pFile, bool write=false, bool newFile=true, bool jumpToEnd=false)=0
virtual bool BSAPI_METHOD	Close ()=0
virtual bool BSAPI_METHOD	Rewind ()=0
virtual char *BSAPI_METHOD	GetFormatId ()=0
virtual bool BSAPI_METHOD	Eof ()=0
virtual bool BSAPI_METHOD	Eol ()=0
virtual bool BSAPI_METHOD	ReadChunkHeader (char *pChunkId=0, unsigned int *pChunkLength=0, char *pListName=0)=0
virtual bool BSAPI_METHOD	ReadChunkData (void *pData, int requestedLength=0)=0
virtual bool BSAPI_METHOD	SkipChunk ()=0
virtual bool BSAPI_METHOD	FindChunk (const char *pChunkId, const char *pListName, bool *pFound=0, unsigned int *pLength=0)=0
virtual bool BSAPI_METHOD	WriteChunk (const char *pChunkId, const char *pData, unsigned int length)=0
virtual bool BSAPI_METHOD	OpenList ()=0
virtual bool BSAPI_METHOD	CreateList (const char *pName)=0
virtual bool BSAPI_METHOD	CloseList ()=0
virtual bool BSAPI_METHOD	DumpFileStructure ()=0

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Detailed Description

Reads RIFF file format.

The Riff format is an universal binary format used mainly by Microsoft. The WAV, AVI and BMP formats are based on the RIFF format. Each file has a header consisted form 4 bytes 'RIFF' header and data length (4 bytes unsigned int). The format uses chunks to store data. Each chunk have a header consised from 4 bytes chunk ID (chars) and 4 bytes chunk length (unsigned int). There is a special chunk 'LIST' which can contain subchunks. The LIST chunk has an additonal 4 bytes list name. In additional if the chunk data does not have even length, there is an additional padding byte behind the chunk

'RIFF'(4B) file_len_in_bytes(unsigned int, - sizeof('RIFF') - sizeof(file_len_in_bytes)) chunk_id1(char, 4B) chunk_len_in_bytes1(unsigned int, -8B ID and len) chunk_data1 chuk_id2 chunk_len_in_bytes2 chunk_data2

chunk LIST 'LIST'(4B) list_len_in_bytes(unsigned int) chunk_id1(char, 4B) chunk_len1 chunk_data1 ...

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The documentation for this class was generated from the following file:

• bsapi.h