Method, apparatus and machine-readable medium for video processing capability communication between a video source device and a video sink device

• US 8,479,253 B2
• Filed: 12/17/2007
• Issued: 07/02/2013
• Est. Priority Date: 12/17/2007
• Status: Active Grant

• Current Assignee: ATI Technologies ULC (Advanced Micro Devices, Inc.)
• Original Assignee: ATI Technologies ULC (Advanced Micro Devices, Inc.)
• Inventors: Glen, David I. J.
• Primary Examiner(s): Bui, Kieu Oanh T
• Application Number:
  US11/957,852
• Publication Number:
  US 20090153734A1
• Time in Patent Office: 2,024 Days
• Field of Search: 348/552, 348/571, 725/98, 725/114, 725/133, 725/141, 725/143, 725/153
• US Class Current: 725/153
• CPC Class Codes: G09G 2310/0224 Details of interlacing
• CPC Class Codes: G09G 2310/0229 De-interlacing
• CPC Class Codes: G09G 2320/02 Improving the quality of display appearance
• CPC Class Codes: G09G 2320/0666 for control of colour parameters, e.g. colour temperature
• CPC Class Codes: G09G 2340/0435 Change or adaptation of the frame rate of the video stream
• CPC Class Codes: G09G 2360/18 Use of a frame buffer in a display terminal, inclusive of the display panel
• CPC Class Codes: G09G 2370/04 Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
• CPC Class Codes: G09G 2370/12 Use of DVI or HDMI protocol in interfaces along the display data pipeline
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: G09G 5/12 Synchronisation between the display unit and other units, e.g. other display units, video-disc players
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/42684 Client identification by a unique number or address, e.g. serial number, MAC address, socket ID network arrangements, protocols or services for addressing or naming H04L61/00
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/4516 involving client characteristics, e.g. Set-Top-Box type, software version or amount of memory available
• CPC Class Codes: H04N 21/454 Content or additional data filtering, e.g. blocking advertisements
• CPC Class Codes: H04N 21/4755 for defining user preferences, e.g. favourite actors or genre retrieval personalisation and generation of user profiles for the retrieval of video data G06F16/739; user profiles in network data switching protocols H04L67/306
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/775 between a recording apparatus and a television receiver
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 5/91 Television signal processing therefor
• CPC Class Codes: H04N 7/163 : by receiver means only

Abstract

At one of a video source device and a video sink device, an indication of video processing capabilities of the other of the video source device and said video sink device is received. Based upon the indication and an indication of video processing capabilities of the one device, one of a plurality of video processing algorithms is selected for execution by the one device. The selecting may be based upon a set of precedence rules. Categories of video processing may for example include scan-rate conversion, interlacing, de-interlacing, de-noise, scaling, color correction, contrast correction and detail enhancement.

Claims

1. A method comprising:

at one of a video source device and a video sink device;

receiving an indication of video processing capabilities of the other of said video source device and said video sink device; and

based upon;

(a) said indication;

(b) an indication of video processing capabilities of said one device; and

(c) a set of precedence rules for use by each of the video source device and the video sink device for selecting video processing algorithms for execution,

predicting what video processing algorithms will be executed by said other device; and

based on the predicting, selecting video processing algorithms for execution by said one device.

2. The method of claim 1 further comprising communicating (b) to said other device.

3. The method of claim 1 wherein (a) identifies video processing algorithms that said other device is capable of executing and (b) identifies video processing algorithms that said one device is capable of executing.

4. The method of claim 1 wherein said selecting selects a video processing algorithm that said one device is capable of executing but said other device is incapable of executing.

5. The method of claim 1 wherein (a) and (b) comprise data structures.

6. The method of claim 5 wherein the data structures comprising (a) and (b) have a common format.

7. The method of claim 1 wherein said receiving an indication comprises receiving the indication over an auxiliary channel of an interconnection between said video source device and said video sink device, said channel being auxiliary to a primary channel of said interconnection for communicating video data from said video source device to said video sink device.

8. The method of claim 1 wherein (a) includes quality indicators indicative of a quality of each of the video processing algorithms executable by said other device, wherein (b) includes quality indicators indicative of a quality of each of the video processing algorithms executable by said one device, and wherein said selecting comprises determining, by comparing the quality indicators from (a) to the quality indicators from (b), that the one device is capable of performing the selected video processing algorithms at a higher quality level than the other device.

9. The method of claim 1 wherein (a) includes power consumption indicators indicative of a degree of power consumption associated with each of the video processing algorithms executable by said other device, wherein (b) includes power consumption indicators indicative of a degree of power consumption associated with each of the video processing algorithms executable by said one device, and wherein said selecting comprises determining, by comparing the power consumption indicators from (a) to the power consumption indicators from (b), that power consumption resulting from execution of the selected video processing algorithms at the one device is expected to be less than power consumption resulting from execution of the selected video processing algorithms at the other device.

10. The method of claim 1 further comprising receiving said set of precedence rules from said other device.

11. The method of claim 1 wherein said one device is the video source device.

12. The method of claim 11 wherein said receiving the indication comprises receiving an Enhanced Extended Display Identification Data (E-EDID) data structure.

13. The method of claim 1 wherein said one device is the video sink device.

14. A machine-readable medium storing instructions that, when executed by a processor of one of a video source device and a video sink device, cause said one device to:

receive an indication of video processing capabilities of the other of said video source device and said video sink device; and

based upon;

(a) said indication;

(b) an indication of video processing capabilities of said one device; and

(c) a set of precedence rules for use by each of the video source device and the video sink device for selecting video processing algorithms for execution,

predict what video processing algorithms will be executed by said other device; and

based on the predicting, select one of a plurality of video processing algorithms for execution by said one device.

15. The machine-readable medium of claim 14 wherein said one device is the video source device.

16. The machine-readable medium of claim 14 wherein said one device is the video sink device.

17. A video source device comprising a processor and memory interconnected with said processor, said memory storing instructions which, when executed by said processor, cause said video source device to:

receive an indication of video processing capabilities of a video sink device; and

based upon;

(a) said indication;

(b) an indication of video processing capabilities of said video source device; and

(c) a set of precedence rules to be used by each of the video source device and the video sink device for selecting video processing algorithms,

predict that the video sink device will apply a detail enhancement video processing algorithm; and

based on the predicting, select a noise reduction video processing algorithm for execution by said video source device.

18. The video source device of claim 17 wherein the instructions further cause the video source device to:

when the predicting predicts that a deinterlacing video processing algorithm will be applied by the video sink device, refraining from performing a vertical deflicker filtering video processing algorithm at the video source device.

19. A video sink device comprising a processor and memory interconnected with said processor, said memory storing instructions which, when executed by said processor, cause said video sink device to:

receive an indication of video processing capabilities of a video source device; and

based upon;

(a) said indication;

(b) an indication of video processing capabilities of said video sink device; and

(c) a set of precedence rules to be used by each of the video source device and the video sink device for selecting video processing algorithms,

predict what video processing algorithms will be applied by the video source device; and

select one of a plurality of video processing algorithms for execution by said video sink device, the selected video processing algorithm being selected so as to complement the video processing algorithms that are predicted to be applied by the video source device.