- From: David Singer <singer@apple.com>
- Date: Sun, 30 Jan 2011 07:26:53 +0900
- To: tmichel@w3.org
- Cc: Joakim Söderberg <joakim.soderberg@ericsson.com>, Daniel Park <soohongp@gmail.com>, "public-media-annotation@w3.org" <public-media-annotation@w3.org>
In further discussion, it seems that using anchor syntax and a # as the separator is cleaner. Can we change to >> attValue="URI#Name" >> compression="urn:example-org:codingnames2010#ITU-H264" >> compression="http://example.net/standards/codecs#G711" with corresponding changes to the text? On Jan 29, 2011, at 23:28 , Thierry MICHEL wrote: > >> compression >> >> (attName="compression", attValue="URI" | "String") >> >> The compression type used. For container files (e.g., QuickTime, AVI), the compression is not defined by the format, as a container file can have several tracks that each use different encodings. In such a case, several compression instances SHOULD be used. Thus, querying the compression property of the track media fragments will return different values for each track fragment. Note: it is possible to use an extendedMIME type as the value for this property, see [RFC 4281]. >> >> >> >> suggested change to >> >> compression >> >> (attName="compression", attValue="URI, String") >> >> The compression type used. For container files (e.g., QuickTime, AVI), the compression is not defined by the format, as a container file can have several tracks that each use different encodings. In such a case, several compression instances SHOULD be used. Thus, querying the compression property of the track media fragments will return different values for each track fragment. The indicator is a pair of values, separated by a comma. The first is a URI that identifies the naming convention used for the second parameter, which is a string. For some container files, the format parameter can also carry an extended MIME type to document this; see [RFC 4281] for one such instance. >> >> Examples: >> compression="urn:example-org:codingnames2010, ITU-H264" >> compression="http://example.net/standards/codecs, G711" >> where ITU-H264 and G711 are defined by example.org (who also defined a URN to identify their naming conventions), and by example.net (who use a URL to identify theirs). >> > > > Updated the compression Statement. > http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#core-property-lists > > For the examples; I have added a link to the following section, which contains the examples. > > 5.1.3.1 Examples for the compression property > > Best, > > Thierry > David Singer Multimedia and Software Standards, Apple Inc.
Received on Saturday, 29 January 2011 22:27:59 UTC