public Mp4IodsBox(Mp4ObjectDescriptor objectDescriptor) : base(12, Mp4BoxType.IODS)
{
this.ObjectDescriptor = objectDescriptor;
if (this.ObjectDescriptor != null)
{
this.Size += this.ObjectDescriptor.Size;
}
}
public Mp4Descriptor Read(Mp4Stream stream)
{
if ((stream.Length - stream.Position) == 0L)
{
return(null);
}
Mp4Descriptor descriptor = null;
long position = stream.Position;
Mp4DescriptorTag tag = (Mp4DescriptorTag)stream.ReadUInt08();
uint payloadSize = 0;
uint headerSize = 1;
uint num4 = 4;
byte num5 = 0;
do
{
headerSize++;
num5 = stream.ReadUInt08();
payloadSize = (payloadSize << 7) + ((uint)(num5 & 0x7f));
}while ((--num4 != 0) && ((num5 & 0x80) != 0));
switch (tag)
{
case Mp4DescriptorTag.OD:
case Mp4DescriptorTag.MP4_OD:
descriptor = new Mp4ObjectDescriptor(stream, tag, headerSize, payloadSize);
break;
case Mp4DescriptorTag.ES:
descriptor = new Mp4EsDescriptor(stream, headerSize, payloadSize);
break;
case Mp4DescriptorTag.DECODER_CONFIG:
descriptor = new Mp4DecoderConfigDescriptor(stream, headerSize, payloadSize);
break;
case Mp4DescriptorTag.DECODER_SPECIFIC_INFO:
descriptor = new Mp4DecoderSpecificInfoDescriptor(stream, headerSize, payloadSize);
break;
case Mp4DescriptorTag.SL_CONFIG:
if (payloadSize != 1)
{
throw new Exception("INVALID_FORMAT");
}
descriptor = new Mp4SLConfigDescriptor(stream, headerSize, payloadSize);
break;
default:
descriptor = new Mp4UnknownDescriptor(stream, tag, headerSize, payloadSize);
break;
}
stream.Seek((position + headerSize) + payloadSize);
return(descriptor);
}
