Invention Grant
- Patent Title: Signalling of maximum dynamic range of inverse discrete cosine transform
- Patent Title (中): 反离散余弦变换的最大动态范围的信号
-
Application No.: US11865915Application Date: 2007-10-02
-
Publication No.: US08300698B2Publication Date: 2012-10-30
- Inventor: Yuriy Reznik
- Applicant: Yuriy Reznik
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Brent A. Boyd
- Main IPC: H04N11/02
- IPC: H04N11/02

Abstract:
Techniques are described to signal a maximum dynamic range of inverse discrete cosine transform (“IDCT”) output values that may be produced when a set of encoded media data is decoded. In accordance with these techniques, an encoding device may generate a media file that includes encoded media data associated with a set of one or more video frames. The media file may also include a range indication element that indicates the maximum dynamic range of IDCT output values produced when the encoded media data is decoded. A decoding device that receives the media file may, prior to decoding the encoded media data, use the range indication element to determine whether to decode the encoded media data. For instance, the decoding device may not decode the encoded media data when the decoding device is not capable of producing IDCT output values in the indicated range of IDCT output values.
Public/Granted literature
- US20080095245A1 SIGNALLING OF MAXIMUM DYNAMIC RANGE OF INVERSE DISCRETE COSINE TRANSFORM Public/Granted day:2008-04-24
Information query