public override bool Parse(AviParser parser)
{
// Call the Parse method of the parent to initialise the header and
// allow parsing the containing header if there is one.
if (!base.Parse(parser))
{
return(false);
}
// Now parse the header.
LstType = parser.GetFourCC(Attribute.ListType);
if (LstType == (uint)ListType.Info)
{
do
{
Valid = parser.Parse(new InfoAttribute(parser.BytesRemaining));
}while (parser.BytesRemaining > 0 && Valid);
}
else if (LstType == (uint)ListType.Prmi)
{
uint maxPrmiLength = (uint)AviDetector.Configurable[AviDetector.ConfigurationKey.HeaderListMaxPrmiLength];
parser.GetInt(Attribute.Unknown);
parser.GetInt(Attribute.Unknown);
parser.GetInt(Attribute.Unknown);
if (parser.BytesRemaining > maxPrmiLength)
{
return(false); // Sanity check
}
parser.GetString(Attribute.AviAdobePremiereInfoList, parser.BytesRemaining);
}
return(Valid);
}
public override bool Parse(AviParser parser)
{
const short MaxLongsPerEntryCount = 16; // Random choice. The only value I've seen up till now is 4.
if (!base.Parse(parser))
{
return(false);
}
ushort longsPerEntry = (ushort)parser.GetShort(Attribute.LongsPerEntry);
if (longsPerEntry > MaxLongsPerEntryCount)
{
return(false);
}
parser.GetByte(Attribute.IndexSubType);
parser.GetByte(Attribute.IndexType);
parser.GetInt(Attribute.EntriesInUse);
parser.GetInt(Attribute.ChunkId);
parser.GetInt(Attribute.Reserved);
parser.GetInt(Attribute.Reserved);
parser.GetInt(Attribute.Reserved);
if (longsPerEntry > 0)
{
ulong bytesRemaining = parser.BytesRemaining;
parser.Parse(new IndexTableAttribute(longsPerEntry, bytesRemaining));
ulong numberOfEntriesInTable = bytesRemaining / (uint)(longsPerEntry * 4);
parser.CheckAttribute(Attribute.IndexTable, numberOfEntriesInTable * longsPerEntry * 4 == bytesRemaining, false);
}
return(Valid);
}
