Result_t MD_to_TimedText_TDesc(TimedText::TimedTextDescriptor& TDesc);
Result_t ReadTimedTextResource(FrameBuffer& FrameBuf, AESDecContext* Ctx, HMACContext* HMAC);
Result_t ReadAncillaryResource(const byte_t*, FrameBuffer& FrameBuf, AESDecContext* Ctx, HMACContext* HMAC);
Result_t MD_to_TimedText_TDesc(TimedText::TimedTextDescriptor& TDesc);
Result_t ReadTimedTextResource(FrameBuffer& FrameBuf, AESDecContext* Ctx, HMACContext* HMAC);
Result_t ReadAncillaryResource(const byte_t*, FrameBuffer& FrameBuf, AESDecContext* Ctx, HMACContext* HMAC);