Video quality testing by encoding aggregated clips

• US 20070025449A1
• Filed: 07/27/2005
• Published: 02/01/2007
• Est. Priority Date: 07/27/2005
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: Sbc Knowledge Ventures, L.P.
• Inventors: Sullivan, Marc, Kortum, Philip, Vleck, Paul
• Granted Patent: US 7,873,102 B2
• Time in Patent Office: Days
• US Class Current: 375/240.260
• CPC Class Codes: H04N 17/004 for digital television systems

Abstract

A variable-bit-rate (VBR)-encoding of a plurality of clips from a plurality of video content items is performed to produce a VBR-encoded aggregated video content item. The VBR-encoding of each of the clips is based on an encoding complexity of at least one other one of the clips. This can be performed by combining the clips into aggregated video content and two-pass VBR-encoding the aggregated video content. A video quality test may be performed using the VBR-encoded aggregated video content item.

Claims

1. A method comprising:

variable-bit-rate (VBR)-encoding a plurality of clips from a plurality of video content items to produce a VBR-encoded aggregated video content item, wherein the VBR-encoding of each of the clips is based on an encoding complexity of at least one other one of the clips; and

performing a video quality test using the VBR-encoded aggregated video content item.

2. The method of claim 1 wherein the VBR-encoding of each of the clips is based on an encoding complexity of the clip relative to encoding complexities of others of the clips.

3. The method of claim 1 wherein said VBR-encoding comprises performing a two-pass VBR-encoding of a single, aggregated piece of video content that combines the plurality of clips.

4. The method of claim 1 wherein the plurality of video content items comprise a plurality of individually-purchasable movies.

5. The method of claim 1 wherein most of the plurality of clips have about the same duration.

6. The method of claim 5 wherein the same duration is about three minutes.

7. A method of encoding a video program having a plurality of program segments and at least one embedded commercial segment, the method comprising:

variable-bit-rate (VBR)-encoding the video program with the plurality of program segments and the at least one embedded commercial segment to produce a VBR-encoded video program item, wherein the VBR-encoding of the at least one commercial segment is based on an encoding complexity of at least one of the plurality of program segments.

8. The method of claim 7 further comprising:

broadcasting the VBR-encoded video program item.

9. A system comprising:

a variable-bit-rate (VBR)-encoder to VBR-encode a plurality of clips from a plurality of video content items to produce a VBR-encoded aggregated video content item, wherein the VBR-encoding of each of the plurality of clips is based on an encoding complexity of another one of the plurality of clips; and

a video quality test apparatus to perform a video quality test using the VBR-encoded aggregated video content item.

10. The system of claim 9 wherein the VBR-encoding of each of the plurality of clips is based on an encoding complexity of the clip relative to encoding complexities of others of the clips.

11. The system of claim 9 wherein the VBR-encoder performs a two-pass VBR-encoding of a single, aggregated piece of video content that combines the plurality of clips.

12. The system of claim 9 wherein the plurality of video content items comprise a plurality of individually-purchasable and downloadable content.

13. The system of claim 9 wherein most of the clips have about the same duration.

14. The system of claim 13 wherein the same duration is less than three minutes.