Encoding and distribution of schema for multimedia content descriptions

    公开(公告)号:US20070234192A1

    公开(公告)日:2007-10-04

    申请号:US11805942

    申请日:2007-05-25

    IPC分类号: G06F15/00

    摘要: The encoding and distribution of schema for multimedia content descriptions are described. Before the schema is sent to a system for use, it is encoded by assigning a first token for each component in the schema and a second token for each attribute of each component. In one aspect, a signifier is sent first to signal that the schema is to be sent in a particular format. In one aspect, the schema is sent as a whole entity first. In another aspect, some of the components of the schema are sent first, followed by the schema that refers to these components. In another aspect, the schema is sent first, followed by a set of component types. When the decoder receives the signifier and encoded schema, it looks up values for the first and second tokens in a look up table for all components and attributes to decode the schema.

    Supporting fidelity range extensions in advanced video codec file format
    3.
    发明申请
    Supporting fidelity range extensions in advanced video codec file format 审中-公开
    支持高级视频编解码文件格式的保真度范围扩展

    公开(公告)号:US20070098083A1

    公开(公告)日:2007-05-03

    申请号:US11255853

    申请日:2005-10-20

    IPC分类号: H04N7/12

    CPC分类号: H04N19/44 H04N19/61 H04N19/70

    摘要: A parameter set is created to specify chroma format, luma bit depth, and chroma bit depth for a portion of multimedia data. The parameter set is encoded into a metadata file that is associated with the multimedia data. The parameter set is extracted from the metadata file if a decoder configuration record contains fields corresponding to the parameter set. In another aspect, the decoder configuration record is created with fields corresponding to the parameter set.

    摘要翻译: 创建参数集以指定一部分多媒体数据的色度格式,亮度位深度和色度位深度。 参数集被编码成与多媒体数据相关联的元数据文件。 如果解码器配置记录包含与参数集相对应的字段,则从元数据文件中提取参数集。 在另一方面,使用对应于参数集的字段来创建解码器配置记录。

    Transcoding between content data and description data
    4.
    发明授权
    Transcoding between content data and description data 有权
    内容数据和描述数据之间的转码

    公开(公告)号:US07203692B2

    公开(公告)日:2007-04-10

    申请号:US10114891

    申请日:2002-04-01

    IPC分类号: G06F17/10

    摘要: Transcoding between content data and description data. The transcoding may include transcoding content data to corresponding description data. Additional description information to complete the description data may be requested. The transcoding may include transcoding description data to content data, including seeking content data items that match the description data. Content data items that best match the description data may be selected and included in the content data. A user may be requested to select items from a group of matching content data items. The content data may be stored according to the Moving Pictures Expert Group-4 (MPEG-4) standard, and the description data may be stored according to the MPEG-7 standard. The transcoding may be achieved via rules stored in the Extensible Stylesheet Transformation (XSLT) format. The transcoding may be implemented on a computing device, such as a personal computer.

    摘要翻译: 内容数据和描述数据之间的转码。 代码转换可以包括将内容数据转码为对应的描述数据。 可以请求用于完成描述数据的附加描述信息。 代码转换可以包括向内容数据转码描述数据,包括寻找与描述数据匹配的内容数据项。 与描述数据最相符的内容数据项可以被选择并包括在内容数据中。 可以请求用户从一组匹配的内容数据项中选择项目。 可以根据运动图像专家组-4(MPEG-4)标准存储内容数据,并且可以根据MPEG-7标准存储描述数据。 转码可以通过以可扩展样式表转换(XSLT)格式存储的规则来实现。 代码转换可以在诸如个人计算机的计算设备上实现。

    Scalable video coding (SVC) file format
    5.
    发明申请
    Scalable video coding (SVC) file format 有权
    可扩展视频编码(SVC)文件格式

    公开(公告)号:US20070016594A1

    公开(公告)日:2007-01-18

    申请号:US11398195

    申请日:2006-04-04

    IPC分类号: G06F7/00

    摘要: The currently existing ISO/AVC file format is modified by providing extensions to store and access video content currently being defined by the SVC standard. Specifically, extensions to the AVC file format are made to provide a new SVC file format that enables the storage and access of scalable video data. The scalable video data is stored as a single track within a media data section of the SVC file format. New extensions are defined for description entries and boxes within a metadata section of the SVC file format. These extensions provide means for extracting sub-streams or layers from the single track of scalable video data stored in the media data section.

    摘要翻译: 通过提供扩展来修改当前存在的ISO / AVC文件格式,以存储和访问当前由SVC标准定义的视频内容。 具体来说,AVC文件格式的扩展是为了提供一种新的SVC文件格式,可以实现可扩展视频数据的存储和访问。 可扩展视频数据作为单个轨道存储在SVC文件格式的媒体数据部分内。 为SVC文件格式的元数据部分中的描述条目和框定义新的扩展。 这些扩展提供用于从存储在媒体数据部分中的可伸缩视频数据的单个轨道中提取子流或层的装置。

    Storing SVC streams in the AVC file format
    6.
    发明申请
    Storing SVC streams in the AVC file format 审中-公开
    以AVC文件格式存储SVC流

    公开(公告)号:US20060233247A1

    公开(公告)日:2006-10-19

    申请号:US11318904

    申请日:2005-12-23

    摘要: A system and method of coding (encoding and/or decoding) video content to extend file formats for storage. The system and method utilizes the concept to define additional sample group description entries. By way of example the method can comprise the steps of: (1) receiving a file with encoded media data as a scalable video codec stream; (2) extracting information identifying the various spatial resolutions, temporal resolutions, quality resolutions or combinations of spatio-temporal-quality resolutions from the media data; (3) generating new description entries and dependency grouping box; (4) populating boxes with extracted metadata; and (5) incorporating metadata into a file associated with the media data using a specific media file format.

    摘要翻译: 编码(编码和/或解码)视频内容以扩展用于存储的文件格式的系统和方法。 该系统和方法利用该概念来定义附加的样本组描述条目。 作为示例,该方法可以包括以下步骤:(1)接收具有编码媒体数据的文件作为可伸缩视频编解码流; (2)从媒体数据提取识别各种空间分辨率,时间分辨率,质量分辨率或时空质量分辨率的组合的信息; (3)生成新的描述条目和依赖关系分组框; (4)用提取的元数据填充框; 和(5)使用特定媒体文件格式将元数据结合到与媒体数据相关联的文件中。