wma_fixed_header.c

本程序为ST公司开发的源代码

#include "accordoptypes.h"
#include "gendef.h"
#include "decoder_task.h"
//WMA ASF header parse stuff ***
#include "wmawfxdefs.h"	//[LL]
#include "wmawrap.h"

//WMA ASF header parse stuff ***
tWMAFileHdrStateInternal FileDesc; // WMA file description

/*
tWMAFileStatus GetASFHeader(tWMAFileHdrStateInternal *pInt)
{
	pInt->wTargetAudioStreamNumber = 1; //wTargetAudioStream;

	// should be implemented some kind of protection
	// i.e return NULL if FileDesc not ready
	// [LL] uncommented checking in WMAFileDecodeInitEx()
	*pInt = FileDesc;

	return cWMA_NoErr;
}
*/

tWMAFileHdrStateInternal FileDesc = {
	NULL,
    4969,	//U64     currPacketOffset;     /* not just for packets */
    5640,	//U64     nextPacketOffset;

    /* ASF header */

    4969,	//DWORD   cbHeader;
    671,	//DWORD   cbPacketSize;
    0,	//DWORD   cbAudioSize;
    721,	//DWORD   cPackets;
    230721,	//DWORD   msDuration;
    1345,	//DWORD   msPreroll;
    4969,	//U64     cbFirstPacketOffset;
    488089,	//U64     cbLastPacketOffset;
    2,	//DWORD   dwFilePropertiesFlags;

    /* audio prop */
    2,	//WORD    nVersion;
    353,	//WORD    wFormatTag;
    16000,	//DWORD   nSamplesPerSec;
    2000,	//DWORD   nAvgBytesPerSec;
    640,	//DWORD   nBlockAlign;
    2,	//WORD    nChannels;
    8704,	//DWORD   nSamplesPerBlock;
    46,	//WORD    nEncodeOpt;
    
    // Added in V9
    1,	//WORD    wPCMFormatTag;
    16,	//WORD    wBitsPerSample; // container size
    16,	//WORD    wValidBitsPerSample; // actual valid data depth in the decoded stream
    3,	//DWORD   dwChannelMask;
    {0,0,0,{ 0,0,10,10,1,1,5,8}},	//GUID    SubFormat;
    16,	//WORD    wOriginalBitDepth; // actual valid data depth in the original source (informational)
    
    /* DRM */
    
    {0,0,10,10,1,1,6,2},	//BYTE    pbSecretData[32];
    0,	//DWORD   cbSecretData;
    {0,0,10,10,1,1,8,8},	//BYTE    pbType[16];
    {0,0,10,10,1,1,9,8},	//BYTE    pbKeyID[32];

#ifdef WMDRM_PORTABLE
    WORD cbCEncExData;
    BYTE *pbCEncExData;
#endif

    /* Content Description */
	0x0, //should be not initialized (tWMAFileContDesc*)0x00aa28d0,	//tWMAFileContDesc		*m_pDesc;

    /* Extended Content Description */

    0x0, //should be not initialized (tWMAExtendedContentDesc*)0x00aa2d90,	//tWMAExtendedContentDesc *m_pECDesc;

    /* Marker */
    0,	//DWORD   m_dwMarkerNum;
    0x0,	//MarkerEntry *m_pMarker;

    /* License Store */
    0,	//DWORD   m_dwLicenseLen;
    0x0,	//BYTE   *m_pLicData;

#ifndef WMAAPI_NO_DRM_STREAM
    BYTE    bAudioStreamNum;
    BYTE    bDRMAuxStreamNum;
#endif
// Members added by Amit 
    1,	//WORD    wAudioStreamId;
//O.K. no metadata 0x00aa10b0   WMA_MetaDataEntry *ptMetaDataEntry;

    // Members added by Naveen for MBR support
    1,	//WORD    wTargetAudioStreamNumber;
    1,	//WORD    cAudioStreams;

#ifdef WMDRM_NETWORK
    WORD cPEData;
    WMA_StreamPayloadExtensionData PEData[ WMA_MAX_PAYLOAD_EXTENSION_STREAMS ];
#endif
};