latest wm uses rtsp. Of course, these questions are more appropriate for the wmtalk list, where all three of us are members, and where there is a simultaneous thread. It's almost too much for me to keep track of. John Willkie ----- Original Message ----- From: "Gary Hughes" <ghughes@xxxxxxxxxxxx> To: <opendtv@xxxxxxxxxxxxx>; "WMTalk" <WMTalk@xxxxxxxxxxxxxxxxxxxxx> Sent: Wednesday, May 18, 2005 2:30 PM Subject: [opendtv] Re: ASF for VC1 > > -----Original Message----- > > From: opendtv-bounce@xxxxxxxxxxxxx=20 > > [mailto:opendtv-bounce@xxxxxxxxxxxxx] On Behalf Of Prashant Desai > > Sent: Wednesday, May 18, 2005 5:11 PM > > To: opendtv@xxxxxxxxxxxxx; 'WMTalk' > > Subject: [opendtv] ASF for VC1 > >=20 > >=20 > > Does the Micosoft's ASF container format have also been=20 > > standardized by SMPTE while standardizing VC1 [ wmv9 ] ?=20 > > =20 > No.=20 > >=20 > > Or all the VC1 products have to use MPEG2 TS ? I am having=20 > > this doubt coz while checking out on various encoders for vc1 / wm9=20 > >=20 > > The o/p card/module is optional and can be in IP Ethernet=20 > > ASF or can be ASI MPEG2 TS ? =20 > >=20 > SMPTE 421M is meant to be transport independent. I've been told that > the changes between WMV9 and VC1/WMV9.5 were primarily to address the > need for a clean separation between transport and video payload.=20 > > SMPTE RP227 will address the mapping of VC1 access units into MPEG-2 > transport streams. It is an adjunct to the standard, but not part of it. > > =20 > >=20 > > So , is it because SMPTE standards of VC1 says that wmv9=20 > > video must be within MPEG2 TS only ?=20 > >=20 > > =20 > >=20 > > The only concern is .. say if someone deploys low end WM9=20 > > based solution from Microsoft today , will he be able to migrate to=20 > >=20 > > High end telco grade VC1 based solution later on ? that too=20 > > without much > > of an hassle since VC1 and wmv9 is exactly same ? assuming=20 > > that audio codec would remain the same After migration ?=20 > >=20 > I would not make that assumption. I do not know the details of the > transport used by WM9 servers. > > gary > > Gary Hughes > Director of Media Engineering > Broadbus Technologies, Inc. > ghughes@xxxxxxxxxxxx > v: 978 264 7919 > f: 978 264 9108 > -------------------------------------------------------- > > This email message and any files transmitted with it contain = > confidential information intended only for the person(s) to whom this = > email message is addressed. If you have received this email message in = > error, please notify the sender immediately by telephone or email and = > destroy the original message without making a copy. Thank you. > > > ---------------------------------------------------------------------- > You can UNSUBSCRIBE from the OpenDTV list in two ways: > > - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org > > - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line. > ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.