Storage medium storing multimedia data, and method and apparatus for reproducing the multimedia data

• US 20050193138A1
• Filed: 02/25/2005
• Published: 09/01/2005
• Est. Priority Date: 02/27/2004
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd., Sejong Industry-Academy Cooperation Foundation
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Hae-kwang
• Application Number:
  US11/064,859
• Publication Number:
  US 20050193138A1
• Time in Patent Office: Days
• US Class Current: 709/231
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/613 for the control of the source by the destination control signals issued by the client directed to the server or network components specially adapted for selective content distribution H04N21/637
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]

Abstract

A storage medium storing multimedia data, and a method and apparatus for reproducing the multimedia data. The method of reproducing multimedia data in a terminal, includes: receiving contents additional information regarding a data structure of at least one of plural media streams constituting of the multimedia data; requesting storage data recorded on a local storage medium according to the contents additional information, and receiving and storing the storage data; requesting streaming data over the network according to the contents additional information, and receiving the streaming data; and using the storage data and the streaming data to reconstruct and reproduce an original media stream, according to the contents additional information.

Claims

1. A storage medium storing multimedia data, the multimedia data comprising:

at least one media stream that includes information about streaming data providable over a network, and storage data readable from a local storage medium by a terminal and stored in the terminal; and

additional information that includes information about how to combine the streaming data and the storage data.

2. The storage medium of claim 1, wherein the streaming data is provided by a server connected through the network and the storage data is stored in the local storage medium.

3. The storage medium of claim 1, wherein the additional information is originally recorded on the local storage medium, and includes information about a name of a file, a location, a data size, or meta-information.

4. The storage medium of claim 3, wherein the media stream includes contents additional information used to combine a first sub-stream includes the streaming data and a second sub-stream includes the storage data so as to reconstruct the media stream.

5. The storage medium of claim 4, wherein the contents additional information includes:

information about the number of media streams of the multimedia data; and

stream additional information regarding attributes of the media streams.

6. The storage medium of claim 5, wherein the stream additional information includes:

information about identifiers of the first sub-stream and the second sub-stream;

information about whether the first sub-stream or the second sub-stream is storage data or streaming data; and

information about a structure of the storage data and the streaming data.

7. A method of reproducing multimedia data in a terminal, comprising:

receiving contents additional information regarding a data structure of at least one of plural media streams of the multimedia data;

requesting storage data recorded on a local storage medium according to the contents additional information, and receiving and storing the storage data;

requesting streaming data over the network according to the contents additional information, and receiving the streaming data; and

using the storage data and the streaming data to reconstruct and reproduce an original media stream, according to the contents additional information.

8. The method of claim 7, wherein the streaming data is stored in a server storage medium connected through the network, and the storage data is stored in the local storage medium.

9. The method of claim 7, wherein the contents additional information includes:

information about the number of the media streams constituting the multimedia data; and

stream additional information regarding attributes of the media streams.

10. The method of claim 9, wherein the stream additional information includes:

information about identifiers of first and second sub-streams constituting a media stream;

information about whether the first sub-stream or the second sub-stream is storage data or streaming data; and

information about a structure of the storage data and the streaming data.

11. A terminal for reproducing multimedia data, comprising:

a storage sub-stream buffer that receives storage sub-streams from a local storage medium;

a streaming sub-stream buffer that receives streaming sub-streams from the streaming server over a network;

a decoder that combines the storage sub-streams and the streaming sub-streams to make a media stream and decode the media stream; and

a renderer that reproduces decoded media streams according to time syncs between the decoded media streams.

12. The terminal of claim 11, further comprising a storage sub-stream storage unit that stores the storage sub-streams and the additional information about the storage sub-streams.

13. The terminal of claim 11, further comprising a de-multiplexer that generates a plurality of streaming sub-streams from streaming data received from the streaming server.

14. The terminal of claim 11, wherein the streaming data is stored in a server storage medium connected through the network, and the storage data is stored in the local storage medium accessed by the terminal.

15. A reproducing apparatus, comprising:

a first de-multiplexer which splits streaming sub-streams into plural sub-streams;

streaming sub-stream buffers which store the split sub-streams;

a second de-multplexer which divides storage sub-streams into plural storage sub-streams;

storage sub-stream buffers which store the divided storage streams;

pre-decoding buffers for each type of stream; and

media stream decoders which combine the respective storage sub-streams and the streaming sub-streams to yield media streams and which decode the media streams.

16. The reproducing apparatus of claim 15, wherein the split streaming sub-streams are stored based on decoding time stamp information and a stream identifier.

17. The reproducing apparatus of claim 15, wherein the divided streams are stored based on decoding time symbol information and a stream identifier.

18. The reproducing apparatus of claim 15, wherein the pre-decoding buffers sequentially store access units of the storage and streaming sub-streams according to information read from the storage sub-stream buffers and the streaming sub-stream buffer.

19. The reproducing apparatus of claim 15, wherein there are two pre-decoding buffers for a base layer stream and an enhancement layer stream according to a scalable coding compression method.

20. The reproducing apparatus of claim 15, further comprising a renderer which renders the decoded media streams.

21. A method of providing streaming service from a server to a reproducing apparatus, the method comprising:

sending a content reproduction command to a DVD player when a content reproduction command in input by a user;

reading additional information from a DVD in the DVD player upon receipt of the content reproduction command;

analyzing the additional information and requesting a streaming service from a streaming server;

receiving streaming data from the streaming server;

requesting that the DVD player transmit storage sub-streams;

receiving the storage sub-streams and storing the received storage sub-streams;

receiving real-time streaming sub-streams from the server; and

combining the stored storage sub-streams and the real-time streaming sub-streams to reproduce content according to the additional information.

22. The method of claim 21, wherein the additional information is compatible with the MPEG-4 standard.

23. The method of claim 21, wherein the additional information includes a descriptor that represents information and a descriptor compatible with the MPEG-4 standard.

24. A computer-readable storage medium encoded with processing instructions for causing a processor to perform a method of reproducing multimedia data in a terminal, the method comprising:

receiving contents additional information regarding a data structure of at least one of plural media streams of the multimedia data;

requesting storage data recorded on a local storage medium according to the contents additional information, and receiving and storing the storage data;

requesting streaming data over the network according to the contents additional information, and receiving the streaming data; and

using the storage data and the streaming data to reconstruct and reproduce an original media stream, according to the contents additional information.

25. A computer-readable storage medium encoded with processing instructions for causing a processor to perform a method of providing streaming service from a server to a reproducing apparatus, the method comprising:

sending a content reproduction command to a DVD player when a content reproduction command in input by a user;

reading additional information from a DVD in the DVD player upon receipt of the content reproduction command;

analyzing the additional information and requesting a streaming service from a streaming server;

receiving streaming data from the streaming server;

requesting that the DVD player transmit storage sub-streams;

receiving the storage sub-streams and storing the received storage sub-streams;

receiving real-time streaming sub-streams from the server; and

combining the stored storage sub-streams and the real-time streaming sub-streams to reproduce content according to the additional information.