METHOD AND SYSTEM FOR CONVERTING A DSS STREAM TO AN ENCRYPTED MPEG STREAM
First Claim
1. A method for signal processing, the method comprising:
- receiving a DSS transport stream;
converting at least a portion of said received DSS transport stream to at least a portion of an MPEG transport stream, wherein said converting comprises one or both of;
mapping one or more RTS values in said DSS transport stream to one or more corresponding PCR values in said MPEG transport stream; and
mapping one or more DSS formatted PTS/DTS values in said DSS stream to one or more corresponding MPEG formatted PTS/DTS values in said MPEG transport stream.
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Abstract
Aspects of a method and system for converting a DSS stream to an encrypted MPEG stream are provided. In some applications, for example, an access device such as a set-top box may require the conversion of DSS proprietary transport streams to standardized MPEG transport streams in order to communicate with an external MPEG device, such as a personal computer. In this regard, conversion of a DSS stream to a MPEG stream may require the conversion of DSS formatted timing/synchronization information into MPEG formatted timing/synchronization information. Additionally, some applications may require the converted MPEG stream to be encrypted utilizing AES counter encryption. In this regard, when converting the DSS stream to an MPEG stream, the data may need to be packetized appropriately to enable the AES counter encryption.
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Citations
38 Claims
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1. A method for signal processing, the method comprising:
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receiving a DSS transport stream; converting at least a portion of said received DSS transport stream to at least a portion of an MPEG transport stream, wherein said converting comprises one or both of; mapping one or more RTS values in said DSS transport stream to one or more corresponding PCR values in said MPEG transport stream; and mapping one or more DSS formatted PTS/DTS values in said DSS stream to one or more corresponding MPEG formatted PTS/DTS values in said MPEG transport stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system for signal processing, the system comprising:
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one or more processors that enable receiving a DSS transport stream; and said one or more processors converts at least a portion of said received DSS transport stream to at least a portion of an MPEG transport stream, wherein said converting comprises one or both of; mapping one or more RTS values in said DSS transport stream to one or more corresponding PCR values in said MPEG transport stream; and mapping one or more DSS formatted PTS/DTS values in said DSS stream to one or more corresponding MPEG formatted PTS/DTS values in said MPEG transport stream. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification