Apparatus and method for management of discontinuous segments of multiple audio, video, and data streams

• US 5,765,164 A
• Filed: 12/21/1995
• Issued: 06/09/1998
• Est. Priority Date: 12/21/1995
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Chary, Ram V., Prasad, Rama R.
• Primary Examiner(s): Lintz, Paul R.
• Assistant Examiner(s): Alam, Hosain T.
• Application Number:
  US08/576,001
• Time in Patent Office: 901 Days
• Field of Search: 395/806, 395/807, 707/104, 707/102
• US Class Current: 1/1
• CPC Class Codes: G06F 16/10 File systems; File servers
• CPC Class Codes: H04N 21/4143 embedded in a Personal Computer [PC]
• CPC Class Codes: H04N 21/4333 Processing operations in response to a pause request
• CPC Class Codes: H04N 21/4788 communicating with other users, e.g. chatting arrangements for providing for computer conferences, e.g. chat rooms, to substation in data switching networks H04L12/1813; distributed application using peer-to-peer [P2P] networks H04L67/104
• CPC Class Codes: H04N 21/8456 by decomposing the content in the time domain, e.g. in time segments
• CPC Class Codes: Y10S 707/99943 Generating database or data structure, e.g. via user interface
• CPC Class Codes: Y10S 707/99945 Object-oriented database structure processing
• CPC Class Codes: Y10S 707/99948 Application of database or data structure, e.g. distributed, multimedia, or image

Abstract

A method, apparatus, and storage medium for management at least two audio, video, or data (AVD) streams, wherein each AVD stream may comprise a plurality of stream segments. According to a preferred embodiment, the at least two AVD streams are stored in a file. A stream segment directory (SSD) table is stored, having an SSD entry for each stream segment in the file, wherein the SSD entry corresponding to each corresponding stream segment comprises a plurality of fields for characterizing the corresponding stream segment.

Claims

1. A method for management at least two audio, video, or data (AVD) streams, wherein each AVD stream may comprise a plurality of stream segments, the method comprising the steps of:

(a) storing the at least two AVD streams in a file wherein the at least two AVD streams may be paused and resumed independently of one another during a data conference, further wherein the stream segments of each AVD stream are continuously recorded portions of said AVD stream; and

(b) storing a stream segment directory (SSD) table having an SSD entry for each stream segment in the file, wherein the SSD entry corresponding to each corresponding stream segment comprises a plurality of fields for characterizing the corresponding stream segment.

2. The method of claim 1, wherein the SSD table further comprises a table size field for indicating the number of SSD entries in the SSD table.

3. The method of claim 1, wherein the SSD entry corresponding to the corresponding stream segment comprises:

a stream identifier field for identifying the AVD stream of which the corresponding stream segment is a part; and

an offset for locating the corresponding stream segment.

4. The method of claim 3, wherein the SSD entry corresponding to the corresponding stream segment further comprises:

a segment number field for identifying the corresponding stream segment, wherein each stream segment in the file is associated with a unique segment number;

a stream state qualifier field for indicating the current status of the AVD stream of which the corresponding stream segment is a part;

a start time field for indicating the start time of the corresponding stream segment; and

an end time field for indicating the end time of the corresponding stream segment.

5. The method of claim 4, wherein the SSD table further comprises a table size field for indicating the number of SSD entries in the SSD table.

6. The method of claim 4, wherein:

the stream identifier field is a 32-bit stream identifier field;

the offset is a 32-bit offset field;

the segment number field is a 32-bit segment number field;

the stream state qualifier field is a 32-bit stream state qualifier field;

the start time field is a 32-bit start time field; and

the end time field is a 32-bit end time field.

7. The method of claim 4, wherein the stream state qualifier field of each SSD entry indicates whether the AVD stream of which the corresponding stream segment is a part is active paused, active unpaused, or inactive.

8. The method of claim 3, wherein:

the at least two AVD streams are AVD streams of a data conference between at least two users;

each AVD stream of the at least two AVD streams has a unique conference identifier; and

the identifier field of each SSD entry identifies the unique conference identifier for the AVD stream of which the corresponding stream segment is a part.

9. The method of claim 1, wherein:

the at least two AVD streams are AVD streams of a data conference between at least two users; and

each AVD stream of the at least two AVD streams has a unique conference identifier.

10. An apparatus for management at least two audio, video, or data (AVD) streams, wherein each AVD stream may comprise a plurality of stream segments, the apparatus comprising:

(a) means for storing the at least two AVD streams in a file; and

(b) means for storing a stream segment directory (SSD) table having an SSD entry for each stream segment in the file, wherein the SSD entry corresponding to each corresponding stream segment comprises a plurality of fields for characterizing the corresponding stream segment.

11. The apparatus of claim 10, wherein the SSD table further comprises a table size field for indicating the number of SSD entries in the SSD table.

12. The apparatus of claim 10, wherein the SSD entry corresponding to the corresponding stream segment comprises:

a stream identifier field for identifying the AVD stream of which the corresponding stream segment is a part; and

an offset for locating the corresponding stream segment.

13. The apparatus of claim 12, wherein the SSD entry corresponding to the corresponding stream segment further comprises:

a segment number field for identifying the corresponding stream segment, wherein each stream segment in the file is associated with a unique segment number;

a stream state qualifier field for indicating the current status of the AVD stream of which the corresponding stream segment is a part;

a start time field for indicating the start time of the corresponding stream segment; and

an end time field for indicating the end time of the corresponding stream segment.

14. The apparatus of claim 13, wherein the SSD table further comprises a table size field for indicating the number of SSD entries in the SSD table.

15. The apparatus of claim 13, wherein:

the stream identifier field is a 32-bit stream identifier field;

the offset is a 32-bit offset field;

the segment number field is a 32-bit segment number field;

the stream state qualifier field is a 32-bit stream state qualifier field;

the start time field is a 32-bit start time field; and

the end time field is a 32-bit end time field.

16. The apparatus of claim 13, wherein the stream state qualifier field of each SSD entry indicates whether the AVD stream of which the corresponding stream segment is a part is active paused, active unpaused, or inactive.

17. The apparatus of claim 12, wherein:

the at least two AVD streams are AVD streams of a data conference between at least two users;

each AVD stream of the at least two AVD streams has a unique conference identifier; and

the identifier field of each SSD entry identifies the unique conference identifier for the AVD stream of which the corresponding stream segment is a part.

18. The apparatus of claim 10, wherein:

the at least two AVD streams are AVD streams of a data conference between at least two users; and

each AVD stream of the at least two AVD streams has a unique conference identifier.

19. A storage medium having stored thereon a plurality of instructions for management at least two audio, video, or data (AVD) streams, wherein each AVD stream may comprise a plurality of stream segments, wherein the plurality of instructions, when executed by a processor, cause the processor to perform the steps of:

(a) storing the at least two AVD streams in a file; and

(b) storing a stream segment directory (SSD) table having an SSD entry for each stream segment in the file, wherein the SSD entry corresponding to each corresponding stream segment comprises a plurality of fields for characterizing the corresponding stream segment.

20. The storage medium of claim 19, wherein the SSD table further comprises a table size field for indicating the number of SSD entries in the SSD table.

21. The storage medium of claim 19, wherein the SSD entry corresponding to the corresponding stream segment comprises:

a stream identifier field for identifying the AVD stream of which the corresponding stream segment is a part; and

an offset for locating the corresponding stream segment.

22. The storage medium of claim 21, wherein the SSD entry corresponding to the corresponding stream segment further comprises:

a segment number field for identifying the corresponding stream segment, wherein each stream segment in the file is associated with a unique segment number;

a stream state qualifier field for indicating the current status of the AVD stream of which the corresponding stream segment is a part;

a start time field for indicating the start time of the corresponding stream segment; and

an end time field for indicating the end time of the corresponding stream segment.

23. The storage medium of claim 22, wherein the SSD table further comprises a table size field for indicating the number of SSD entries in the SSD table.

24. The storage medium of claim 22, wherein:

the stream identifier field is a 32-bit stream identifier field;

the offset is a 32-bit offset field;

the segment number field is a 32-bit segment number field;

the stream state qualifier field is a 32-bit stream state qualifier field;

the start time field is a 32-bit start time field; and

the end time field is a 32-bit end time field.

25. The storage medium of claim 22, wherein the stream state qualifier field of each SSD entry indicates whether the AVD stream of which the corresponding stream segment is a part is active paused, active unpaused, or inactive.

26. The storage medium of claim 21, wherein:

the at least two AVD streams are AVD streams of a data conference between at least two users;

each AVD stream of the at least two AVD streams has a unique conference identifier; and

the identifier field of each SSD entry identifies the unique conference identifier for the AVD stream of which the corresponding stream segment is a part.

27. The storage medium of claim 19, wherein:

the at least two AVD streams are AVD streams of a data conference between at least two users; and

each AVD stream of the at least two AVD streams has a unique conference identifier.