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US 2003/0193940 A1Published application
Apparatus and method of packetizing data stream
AssigneeSony Corporation
InventorMamoru Kugumiya
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AssigneeSony Corporation
InventorMamoru Kugumiya
Estimating the term…
Term end not estimated
Packetizer 102A receives MPEG4 stream STM1 from encoder 101 and translates it into MPEG2-PEG packet. Multiplexer 103 receives stream STM2 of the MPEG2-PEG packet form and transports a stream STM3 of MPEG2-TS form as a transport output signal. The packetizer 102A detects a header from the MPEG4 stream STM1. It analyzes the header, detects predetermined information from Video_Object_Layer header and Video_Object_Plane header, and generates the time information such as ESCR, DTS, and PTS using the predetermined information and at initial value of ESCR supplied from outside. The PES header including such time information is generated. The packetizer 102A generates the MPEG2-PES packet in sequence with adding the PES header thus generated into every AU of the MPEG4 stream STM1 and obtains the stream STM2.
An apparatus for packetizing a coded bitstream of digital data in accordance with a transport protocol comprising:
An apparatus for packetizing a plurality of coded bitstreams for digital data in accordance with respective transport protocols comprising:
A method of packetizing a coded bitstream of digital data in accordance with a transport protocol comprising:
A method of packetizing a plurality of coded bitstreams of digital data in accordance with respective transport protocols comprising:
An apparatus for packetizing a coded bitstream of digital data in accordance with a transport protocol comprising:
An apparatus for packetizing an MPEG4 stream in accordance with a specification of an MPEG2-PES stream protocol comprising:
An apparatus for packetizing an MPEG4 stream in accordance with a specification of an MPEG2-PES stream protocol comprising:
Dependencies are inferred from the claim text.
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Involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements: by…
Network streaming of media packets: media network packetisation
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…
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1. Field of the Invention
The present invention relates generally to an apparatus and a method for packetizing a coded bitstream of digital data in accordance with a transport protocol. More particularly, it relates to an apparatus and a method for packetizing the bitstreams wherein time information is generated in accordance with a specification of the protocol, a header including the time information is generated, and a packet including the time information in accordance with the protocol is generated with adding the header to every predetermined unit of the bitstreams.
2. Description of Related Art
FIG. 1 is a diagram depicting a structure of MPEG4 stream (part one);
FIG. 2 is a diagram depicting a structure of MPEG4 stream (part two);
FIG. 3 is a block diagram depicting configuration of a transport system according to a first embodiment of the present invention;
(1) First Embodiment of the Invention
FIG. 3 illustrates in a block diagram form configuration of a transport system 100A as a first embodiment of the invention. The transport system 100A comprises encoder 101 for encoding and transferring MPEG4 stream STM1, a packetizer 102A for receiving the MPEG4 stream STM1 from the encoder 101, translating it into MPEG2-PES packet and transferring a stream STM2 of MPEG2-PES packet form, and a multiplexer 103 for receiving and multiplexing the MPEG2-PES packet stream STM2 from the packetizer 102A and transporting a stream STM3 of MPEG2-TS form as a transport output signal.
According to the transport system 100A, the MPEG4 stream STM1 transferred from the encoder 301 is supplied to the packetizer 102A, which translates it into MPEG2-PES packet. The stream STM2 of MPEG2-PES packet form transferred from the packetizer 102A is supplied to the multiplexer 103, which transports the stream STM3 of MPEG2-TS form as its output signal. The multiplexer 103 sections the information, MPEG4 video_descriptor and multiplexes the stream STM2 and the information, MPEG4 video_descriptor thus sectioned to indicate that the data contained in the stream STM2, which the multiplexer 103 receives, is MPEG4 stream.