static void ASBD_BtoN(const AudioStreamBasicDescription *infmt, AudioStreamBasicDescription *outfmt)
{
*(UInt64 *)&outfmt->mSampleRate = EndianU64_BtoN(*(UInt64 *)&infmt->mSampleRate);
outfmt->mFormatID = EndianU32_BtoN(infmt->mFormatID);
outfmt->mFormatFlags = EndianU32_BtoN(infmt->mFormatFlags);
outfmt->mBytesPerPacket = EndianU32_BtoN(infmt->mBytesPerPacket);
outfmt->mFramesPerPacket = EndianU32_BtoN(infmt->mFramesPerPacket);
outfmt->mBytesPerFrame = EndianU32_BtoN(infmt->mBytesPerFrame);
outfmt->mChannelsPerFrame = EndianU32_BtoN(infmt->mChannelsPerFrame);
outfmt->mBitsPerChannel = EndianU32_BtoN(infmt->mBitsPerChannel);
}
void ACFLACCodec::ParseMagicCookie(const void* inMagicCookieData, UInt32 inMagicCookieDataByteSize, FLAC__StreamMetadata_StreamInfo * theStreamInfo) const
{
FLAC__StreamMetadata_StreamInfo * tempConfig;
UInt32 cookieOffset = 0;
// We might get a cookie with atoms -- strip them off
if (inMagicCookieDataByteSize > sizeof(FLAC__StreamMetadata_StreamInfo))
{
if(EndianU32_BtoN(((AudioFormatAtom *)inMagicCookieData)->atomType) == 'frma')
{
cookieOffset = (sizeof(AudioFormatAtom) + sizeof(FullAtomHeader));
}
}
// Finally, parse the cookie for the bits we care about
tempConfig = (FLAC__StreamMetadata_StreamInfo *)(&((Byte *)(inMagicCookieData))[cookieOffset]);
theStreamInfo->min_blocksize = EndianU32_BtoN( tempConfig->min_blocksize );
theStreamInfo->max_blocksize = EndianU32_BtoN( tempConfig->max_blocksize );
theStreamInfo->min_framesize = EndianU32_BtoN( tempConfig->min_framesize );
theStreamInfo->max_framesize = EndianU32_BtoN( tempConfig->max_framesize );
theStreamInfo->sample_rate = EndianU32_BtoN( tempConfig->sample_rate );
theStreamInfo->channels = EndianU32_BtoN( tempConfig->channels );
theStreamInfo->bits_per_sample = EndianU32_BtoN( tempConfig->bits_per_sample );
theStreamInfo->total_samples = EndianU64_BtoN( tempConfig->total_samples );
theStreamInfo->md5sum[0] = tempConfig->md5sum[0];
theStreamInfo->md5sum[1] = tempConfig->md5sum[1];
theStreamInfo->md5sum[2] = tempConfig->md5sum[2];
theStreamInfo->md5sum[3] = tempConfig->md5sum[3];
theStreamInfo->md5sum[4] = tempConfig->md5sum[4];
theStreamInfo->md5sum[5] = tempConfig->md5sum[5];
theStreamInfo->md5sum[6] = tempConfig->md5sum[6];
theStreamInfo->md5sum[7] = tempConfig->md5sum[7];
theStreamInfo->md5sum[8] = tempConfig->md5sum[8];
theStreamInfo->md5sum[9] = tempConfig->md5sum[9];
theStreamInfo->md5sum[10] = tempConfig->md5sum[10];
theStreamInfo->md5sum[11] = tempConfig->md5sum[11];
theStreamInfo->md5sum[12] = tempConfig->md5sum[12];
theStreamInfo->md5sum[13] = tempConfig->md5sum[13];
theStreamInfo->md5sum[14] = tempConfig->md5sum[14];
theStreamInfo->md5sum[15] = tempConfig->md5sum[15];
}
