CA2388606A1 - Picture-in-picture and multiple video streams using slice-based encoding - Google Patents
Picture-in-picture and multiple video streams using slice-based encoding Download PDFInfo
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- CA2388606A1 CA2388606A1 CA002388606A CA2388606A CA2388606A1 CA 2388606 A1 CA2388606 A1 CA 2388606A1 CA 002388606 A CA002388606 A CA 002388606A CA 2388606 A CA2388606 A CA 2388606A CA 2388606 A1 CA2388606 A1 CA 2388606A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/23412—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs for generating or manipulating the scene composition of objects, e.g. MPEG-4 objects
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- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
- H04N21/234318—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into objects, e.g. MPEG-4 objects
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Abstract
A head-end centric system and apparatus for encoding and delivery of realtim e and non-realtime content including: a non-realtime content source for providing guide content; a guide encoder (416) for encoding the non-realtime content into encoded non-realtime content; a realtime content source for providing realtime video and audio content; a realtime encoder unit (408) fo r encoding the realtime video and audio content into encoded realtime video an d audio; a remultiplexor for repacketizing the encoded non-realtime content an d the encoded realtime video and audio into transport packets; and a re- timestamp unit coupled to the remultiplexer for providing timestamps to be applied to the transport packets in order to synchronize the realtime and no n- realtime content therein.
Claims (23)
1. A method for encoding a program guide, the method comprising:
encoding a first set of slices for each of a plurality of graphics pages; and encoding a second set of slices for each of a plurality of video streams.
encoding a first set of slices for each of a plurality of graphics pages; and encoding a second set of slices for each of a plurality of video streams.
2. The method of claim 1, where the first set of slices are intra-coded.
3. The method of claim 2, where the second set of slices are intra-coded.
4. The method of claim 3, further comprising:
encoding a third set of slices for each of the plurality of video streams, where the third set of slices are predictive-coded.
encoding a third set of slices for each of the plurality of video streams, where the third set of slices are predictive-coded.
5. The method of claim 4, further comprising:
encoding a fourth set of slices for each of the plurality of video streams, where the fourth set of slices comprise skipped-coded graphics.
encoding a fourth set of slices for each of the plurality of video streams, where the fourth set of slices comprise skipped-coded graphics.
6. The method of claim 3, where encoding the second set of slices is performed once per group of pictures (GOP) for each of the plurality of video streams.
7. The method of claim 4, where encoding the third set of slices is performed multiple times per group of pictures (GOP) for each of the plurality of video streams.
8. The method of claim 5, where encoding the fourth set of slices is performed multiple times per group of pictures (GOP) for each of the plurality of video streams.
9. The method of claim 1, further comprising:.
encoding a plurality of audio streams, each audio stream having a corresponding video stream.
encoding a plurality of audio streams, each audio stream having a corresponding video stream.
10. The method of claim 5, further comprising:.
forming a packet stream by multiplexing together first, second, third, and fourth sets of packets, where the first set of packets include the first set of slices, the second set of packets include the second set of slices, the third set of packets include the third set of slices, and the fourth set of packets include the fourth set of slices.
forming a packet stream by multiplexing together first, second, third, and fourth sets of packets, where the first set of packets include the first set of slices, the second set of packets include the second set of slices, the third set of packets include the third set of slices, and the fourth set of packets include the fourth set of slices.
11. The method of claim 10, further comprising:.
encoding a plurality of audio streams, each audio stream having a corresponding video stream;
forming an audio packet stream by multiplexing together the plurality of audio streams; and forming a transport stream by multiplexing together the packet stream and the audio packet stream.
encoding a plurality of audio streams, each audio stream having a corresponding video stream;
forming an audio packet stream by multiplexing together the plurality of audio streams; and forming a transport stream by multiplexing together the packet stream and the audio packet stream.
12. A bitstream for representing a program guide, the bitstream comprising:
a first set of packets including a set of slices for each of a plurality of graphics pages; and a second set of packets including a set of slices for each of a plurality of video streams.
a first set of packets including a set of slices for each of a plurality of graphics pages; and a second set of packets including a set of slices for each of a plurality of video streams.
13. The bitstream of claim 12, where the first set of packets are identifiable by a first set of packet identifiers.
14. The bitstream of claim 13, where the second set of packets are identifiable by a second set of packet identifiers.
15. The bitstream of claim 14, where the first set of packets comprise a set of intra-coded slices for each of the plurality of graphics pages.
16. The bitstream of claim 15, where the second set of packets comprise a set of intra-coded slices for each of the plurality of video streams.
17. The bitstream of claim 16, where the second set of packets further include a second set of slices for each of a plurality of video streams, where the second set of slices are predictive-coded.
18. The bitstream of claim 17, where the second set of packets further include a third set of slices for each of a plurality of video streams, where the third set of slices are skipped-coded.
19. The bitstream of claim 12, further comprising:.
a third set of packets including a plurality of audio streams, each audio stream having a corresponding video stream.
a third set of packets including a plurality of audio streams, each audio stream having a corresponding video stream.
20. The bitstream of claim 12 including multiple full motion video streams which can be retrieved directly with a demultiplexer and decoder from a single tuner at a receiving terminal.
21. The bitstream of claim 12 including multiple full motion video streams which can be played interchangeably from a single tuner.
22. The bitstream of claim 12 including multiple full motion video streams which can be retrieved directly with a demultiplexer and decoder without being accessible to a microprocessor.
23. A method of generating a user interface to be transmitted in a packet stream to terminal units, the method comprising:
creating a first set of packets by encoding a set of slices for each of a plurality of graphics; and creating a second set of packets by encoding a set of slices for each of a plurality of video streams.
creating a first set of packets by encoding a set of slices for each of a plurality of graphics; and creating a second set of packets by encoding a set of slices for each of a plurality of video streams.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2680673A CA2680673C (en) | 1999-10-27 | 2000-10-27 | Picture-in-picture and multiple video streams using slice-based encoding |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/428,066 | 1999-10-27 | ||
US09/428,066 US6651252B1 (en) | 1999-10-27 | 1999-10-27 | Method and apparatus for transmitting video and graphics in a compressed form |
US09/454,216 US6481012B1 (en) | 1999-10-27 | 1999-12-09 | Picture-in-picture and multiple video streams using slice-based encoding |
US09/454,216 | 1999-12-09 | ||
PCT/US2000/029805 WO2001031914A1 (en) | 1999-10-27 | 2000-10-27 | Picture-in-picture and multiple video streams using slice-based encoding |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2680673A Division CA2680673C (en) | 1999-10-27 | 2000-10-27 | Picture-in-picture and multiple video streams using slice-based encoding |
Publications (2)
Publication Number | Publication Date |
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CA2388606A1 true CA2388606A1 (en) | 2001-05-03 |
CA2388606C CA2388606C (en) | 2009-12-29 |
Family
ID=27027608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CA002388606A Expired - Lifetime CA2388606C (en) | 1999-10-27 | 2000-10-27 | Picture-in-picture and multiple video streams using slice-based encoding |
Country Status (7)
Country | Link |
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US (2) | US8032906B2 (en) |
EP (1) | EP1226713B1 (en) |
AT (1) | ATE359669T1 (en) |
AU (1) | AU1576801A (en) |
CA (1) | CA2388606C (en) |
DE (1) | DE60034364D1 (en) |
WO (1) | WO2001031914A1 (en) |
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US9674586B2 (en) | 1998-07-23 | 2017-06-06 | Comcast Ip Holdings I, Llc | Data structure and methods for providing an interactive program guide |
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AU1576801A (en) | 2001-05-08 |
DE60034364D1 (en) | 2007-05-24 |
EP1226713A4 (en) | 2005-03-02 |
US20030028879A1 (en) | 2003-02-06 |
CA2388606C (en) | 2009-12-29 |
US8032906B2 (en) | 2011-10-04 |
EP1226713B1 (en) | 2007-04-11 |
EP1226713A1 (en) | 2002-07-31 |
ATE359669T1 (en) | 2007-05-15 |
US8930998B2 (en) | 2015-01-06 |
WO2001031914A1 (en) | 2001-05-03 |
US20110314500A1 (en) | 2011-12-22 |
WO2001031914A9 (en) | 2002-07-04 |
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