Very good! I still not complete the reading for CCID-4 draft. In all case, nice to know this because I have also a particular interesting on it as I said to you last time we talked about speex. Leandro. 2007/9/19, Tommi Saviranta <wnd@xxxxxx>: > On Wed, Sep 19, 2007 at 17:31:57 -0300, ツ Leandro Sales wrote: > > it RFC 4342, section 5.3 (Packet Sizes), it says that CCID-3 is not > > appropriate for applications that require a fixed interval of time > > between packets and vary their packet size instead of their packet > > rate in response to congestion. The question is: in this case it is > > not recommended to use VBR codecs such as SPEEX on the application > > layer? Is this same issue occurs in the CCID-4? > > I interpret RFC 4342 exactly the way you do. CCID 3 is suitable for > applications such as online gaming, but not for variable bitrate codecs. > > CCID 4 draft (draft-floyd-dccp-ccid4-01.txt), section 3: > > "CCID 4 is designed to be used either by applications that use a small > fixed segment size, or by applications that change their sending rate > by varying the segment size. If CCID 4 is used by an application that > varies its segment size in response to changes in the allowed sending > rate in bps, we note that CCID 4 doesn't dictate the segment size to > be used by the application; this is done by the application itself." > > The way I understand this, CCID 4 is The Choice(tm) for VBR codecs such > as Speex, which is also one of the main reasons I'm interested in > CCID 4. > > - To unsubscribe from this list: send the line "unsubscribe dccp" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
