Multiple codecs for video encoding format compatibility

• US 5,970,233 A
• Filed: 05/03/1996
• Issued: 10/19/1999
• Est. Priority Date: 05/03/1996
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Liu, Christina K., Nguyen, Yung D.
• Primary Examiner(s): Ramirez, Ellis B.
• Application Number:
  US08/642,051
• Time in Patent Office: 1,264 Days
• Field of Search: 395/200.76, 395/200.77, 395/200.66, 395/330, 395/332, 348/15, 348/392, 386/81
• US Class Current: 709/246
• CPC Class Codes: H04N 19/40 using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream

Abstract

A method, apparatus, and storage medium for processing video data. According to one embodiment, first data encoded in a first high level encoding format and second data encoded in a second high level encoding format are provided. The first data is decoded with a first format decoder of a video subsystem. The second data is decoded with a second format decoder of the video subsystem.

Claims

1. A method for processing video data, the method comprising the steps of:

(a) providing first data encoded in a first high level encoding format;

(b) providing second data encoded in a second high level encoding format, wherein the second data is different from the first data;

(c) decoding the first data with a first format decoder of a video subsystem to provide decoded first data; and

(d) decoding the second data with a second format decoder of the video subsystem to provide decoded second data.

2. The method of claim 1, further comprising the step of:

(e) displaying the decoded first data and the decoded second data with a display engine of the video subsystem.

3. The method of claim 1, wherein:

step (a) comprises the step of capturing and encoding a local video source to provide the first data encoded in the first high level encoding format.

4. The method of claim 1, wherein:

step (b) comprises the step of receiving the second data from a remote video system.

5. The method of claim 1, wherein:

the first high level encoding format is incompatible with the second high level encoding format;

the first and second high level encoding formats include first and second video data compression formats, respectively;

step (a) comprises the step of capturing and encoding a local video source to provide the first data encoded in the first high level encoding format;

step (b) comprises the step of receiving the second data from a remote video system; and

the method further comprises the steps of;

(e) displaying in a local video window the decoded first data with a display engine of the video subsystem; and

(f) displaying in a remote video window the decoded second data with the display engine of the video subsystem.

6. An apparatus for processing video data, the apparatus comprising:

(a) means for providing first data encoded in a first high level encoding format;

(b) means for providing second data encoded in a second high level encoding format, wherein the second data is different from the first data;

(c) first format decoder means of a video subsystem for decoding the first data to provide decoded first data; and

(d) second format decoder means of the video subsystem for decoding the second data to provide decoded second data.

7. The apparatus of claim 6, further comprising:

(e) display engine means of the video subsystem for displaying the decoded first data and the decoded second data.

8. The apparatus of claim 6, wherein:

means (a) comprises means for capturing and encoding a local video source to provide the first data encoded in the first high level encoding format.

9. The apparatus of claim 6, wherein:

means (b) comprises means for receiving the second data from a remote video system.

10. The apparatus of claim 6, wherein:

the first high level encoding format is incompatible with the second high level encoding format;

the first and second high level encoding formats include first and second video data compression formats, respectively;

means (a) comprises means for capturing and encoding a local video source to provide the first data encoded in the first high level encoding format; and

means (b) comprises means for receiving the second data from a remote video system;

the apparatus further comprising;

(e) display engine means of the video subsystem for displaying in a local video window the decoded first data and for displaying in a remote video window the decoded second data.

11. A storage medium having stored thereon a plurality of instructions for processing video data, wherein the plurality of instructions, when executed by a processor, cause the processor to perform the steps of:

(a) providing first data encoded in a first high level encoding format;

(b) providing second data encoded in a second high level encoding format, wherein the second data is different from the first data;

(c) decoding the first data with a first format decoder of a video subsystem to provide decoded first data; and

(d) decoding the second data with a second format decoder of the video subsystem to provide decoded second data.

12. The storage medium of claim 11, further comprising:

(c) displaying the decoded first data and the decoded second data with a display engine of the video subsystem.

13. The storage medium of claim 11, wherein

step (a) comprises the step of capturing and encoding a local video source to provide the first data encoded in the first high level encoding format.

14. The storage medium of claim 11, wherein step (b) comprises the step of receiving the second data from a remote video system.

15. The storage medium of claim 11, wherein:

the first high level encoding format is incompatible with the second high level encoding format;

the first and second high level encoding formats include first and second video data compression formats, respectively;

step (a) comprises the step of capturing and encoding a local video source to provide the first data encoded in the first high level encoding format;

step (b) comprises the step of receiving the second data from a remote video system; and

the plurality of instructions cause the processor to perform the further steps of;

(e) displaying in a local video window the decoded first data with a display engine of the video subsystem; and

(f) displaying in a remote video window the decoded second data with the display engine.

16. A video subsystem for processing video data, comprising:

(a) a first format decoder; and

(b) a second format encoder;

wherein;

the first format decoder receives and decodes first data encoded in a first high level encoding format to provide decoded first data; and

the second format decoder receives and decodes second data encoded in a second high level encoding format to provide decoded second data, wherein the second data is different from the first data.

17. The video subsystem of claim 16, further comprising:

a display engine, wherein the display engine displays the decoded first data and the decoded second data.

18. The video subsystem of claim 16, further comprising:

a first format encoder, wherein

the first format encoder captures and encodes a local video source to provide the first data encoded in the first high level encoding format.

19. The video subsystem of claim 16, wherein

the second data is received from a remote video system.

20. The video subsystem of claim 16, further comprising:

a first format encoder; and

a display engine;

wherein;

the first format encoder captures and encodes a local video source to provide the first data encoded in the first high level encoding format;

the display engine displays the decoded first data and the decoded second data

the first high level encoding for at is incompatible with the second high level encoding format;

the first and second high level encoding formats include first and second video data compression formats, respectively; and

the second data is received from a remote video system.