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Media extractor tracks for file format track selection

A file format, extractor technology, used in electrical components, television, digital video signal modification, etc.

Active Publication Date: 2012-10-03
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, MPEG-4 specifies encoding and decoding methods that differ from those of MPEG-2, but video encoders that implement the techniques of the MPEG-4 standard can still take advantage of the MPEG-2 transport-level method

Method used

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  • Media extractor tracks for file format track selection
  • Media extractor tracks for file format track selection
  • Media extractor tracks for file format track selection

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] The techniques of this disclosure are generally directed to enhancing the International Organization for Standardization (ISO) base media file format and extensions to the ISO base media file format. Extensions to the ISO base media file format include, for example, the Advanced Video Coding (AVC) file format, the Scalable Video Coding (SVC) file format, the Multiview Video Coding (MVC) file format, and the 3rd Generation Partnership Project ( 3GPP) file format. In general, the techniques of this disclosure may be used to generate extended media extractor tracks in the ISO base media file format and / or in the ISO base media file format. As described in more detail below, in some examples, such media extractor tracks may be used to support adaptations in hypertext transfer protocol (HTTP) video streaming. In some instances, the media extractor forms part of the ISO base media file format and / or extensions to the ISO base media file format (e.g., AVC, SVC, MVC, and 3GPP)...

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PUM

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Abstract

A video coding apparatus may be configured to utilize media extractors in a media extractor track that reference two or more non-consecutive network access layer (NAL) units of a separate track. An example apparatus includes a multiplexer to construct a first track including a video sample comprising NAL units, based on encoded video data, wherein the video sample is included in an access unit, construct a second track including an extractor that identifies at least first one of the NAL units in the video sample of the first track, and wherein the extractor identifies a second NAL unit of the access unit, wherein the first identified NAL unit and the second identified NAL unit are non-consecutive, and include the first track and the second track in a video file conforming at least in part to ISO base media file format. The identified NAL units may be in separate tracks.

Description

[0001] This application claims the benefit of the following U.S. Provisional Applications: U.S. Provisional Application No. 61 / 243,030, filed September 16, 2009, U.S. Provisional Application No. 61 / 244,827, filed September 22, 2009, 2010 U.S. Provisional Application No. 61 / 293,961, filed January 11, and U.S. Provisional Application No. 61 / 295,261, filed January 15, 2010, the entire contents of each of which are incorporated by reference way incorporated into this article. technical field [0002] The present invention relates to the transmission of encoded video data. Background technique [0003] Digital video capabilities can be incorporated into a wide range of devices including digital televisions, digital direct broadcast systems, wireless broadcast systems, personal digital assistants (PDAs), laptop or desktop computers, digital cameras, digital recording devices, Digital media players, video game devices, video game consoles, cellular or satellite radio phones, video...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50
CPCH04N19/174H04N19/188H04N19/44H04N19/597
Inventor 陈英马尔塔·卡切维奇
Owner QUALCOMM INC
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