Thanks Zsolt. Your trick works for me too when I start agvcr from the command line. I still need to figure out why rat and vic don't start when I run agvcr from the icon. I tried with rat and vic in same dir as agvcr, then with rat and vic in the path.
Derek, this is great application! Cheers, Monika > > A simple trick I used was to play back vic and rat streams > on "localhost" after you start vic and rat manually, with > the same audio and video ports. E.g. you start rat -- > assuming rat is added to your PATH variable -- (rat.exe > 127.0.0.1/32210) and vic (vic.exe 127.0.0.1/32214). Using > "localhost" and the same UDP ports in the player you can > play your recorded session on your computer. > > Zsolt > > _ _ _ > > Zsolt Nagykaldi, PhD > Research Associate, Clinical IT Specialist > University Of Oklahoma Health Sciences Center > Department Of Family And Preventive Medicine > Oklahoma Center For Family Medicine Research > > 900 NE 10th Street > Oklahoma City, OK 73104 > Phone: (405) 271-8000 Ext.:1-32212 > Fax: (405) 271-1682 > > ________________________________ > > From: Derek Piper [mailto:dcpi...@indiana.edu] > Sent: Thu 11/10/2005 11:25 AM > To: Wachtel, Robert L > Cc: monika.k.rabari...@ccaix.jsums.edu; Nagykaldi, Zsolt > F. (HSC); Access Grid Technical mailing list Subject: Re: > [AG-TECH] Release of AGVCR - recording AG sessions > > > > > Hi, > > Yes, I should probably note that problem in the > 'known issues' stuff. Problem is I wrote a lot of this > code a few months ago and only just recently did the > website, so in testing with all of you fine folks I'm > saying 'oh yea!' and trying to catch up on the > documentation ... oops :) > Now, you *should* be able to immediately play back > to the same venue you recorded from, while the AGtk VIC > and RAT are running. This is true when AGVCR is running > from Linux. It allows this because AGVCR is altering the > SSRCs in every packet sent out on playback, thus since it > appears to VIC and RAT as if new sources have 'appeared', > then all works as it should. Under Windows I found that if > I enabled this 'packet munging' for audio streams then it > resulted in no audio being played at all - regardless of > venue, whereas under Linux it worked fine. I will > reinvestigate this but under Windows builds it's disabled > for audio streams since the behavior was deemed > 'unreliable', and I wanted to be sure that in both builds > the stream output worked for most cases where a recording > is played back at a different time from the original. > In your test here, it would work in the same venue > if participants reloaded the venue, since then VIC and RAT > would choose new SSRCs for their packets and everyone > would be happy. The garbled audio in this case is from > more than one source having the same SSRC, which is > against the spec, i.e. bad. > > Derek > > Wachtel, Robert L wrote: > > I just completed a test session with the folks at ANL. > > Recording worked well. Playback did not do so well until > > I switched venues from the one in which I made the > > original recording. Playback then worked well. Just as > with recording playback does require you to have a > > multicast session active and join into the multicast > > group with the configuration in AGVCR. > > > > Playback while still in the original venue caused broken > > audio from the other remote sites and I could not hear > > any of the playback audio though I could see the video > playback as well as the continuing live video. > > > This is on a Windows XP Pro SP2 in multicast. > > > > Bob W. > > 243-2857 > > > > -----Original Message----- > > From: owner-ag-t...@mcs.anl.gov > > [mailto:owner-ag-t...@mcs.anl.gov] On Behalf Of > > monika.k.rabari...@ccaix.jsums.edu Sent: Thursday, > > November 10, 2005 9:42 AM To: Nagykaldi,Zsolt F. (HSC); > > dcpi...@indiana.edu Cc: Access Grid Technical mailing > > list Subject: RE: [AG-TECH] Release of AGVCR - recording > AG sessions > > > Also, when I start agvcr from the command line and play > > back the recorded file, vic and rat start but showing > > the current video and audio in the venue, instead of the > recorded ones. > > > > >>Hi All, > >> > >>I am currently trying it on XP Pro SP2 with multicast. > >>Recording seems to work fine (the file got some size). > >>When playing back, I don't see vic and rat starting. > >> > >>I am not sure what I am doing wrong. Attached is a > >>snaphot. Note the "File Offset: .....out of 0 bytes" > ???? >> > >>TIA > >>Monika > >> > >> > >> > >>> > >>>Win XP Pro SP2. Works like a charm in multicast. > >>> > >>>Zsolt > >>> > >>> > >>>_ _ _ > >>> > >>>Zsolt Nagykaldi, PhD > >>>Research Associate, Clinical IT Specialist > >>>University Of Oklahoma Health Sciences Center > >>>Department Of Family And Preventive Medicine > >>>Oklahoma Center For Family Medicine Research > >>> > >>>900 NE 10th Street > >>>Oklahoma City, OK 73104 > >>>Phone: (405) 271-8000 Ext.:1-32212 > >>>Fax: (405) 271-1682 > >>> > >>>________________________________ > >>> > >>>From: dcpi...@indiana.edu [mailto:dcpi...@indiana.edu] > >>>Sent: Wed 11/9/2005 7:07 PM > >>>To: Nagykaldi, Zsolt F. (HSC) > >>>Cc: Access Grid Technical mailing list > >>>Subject: RE: [AG-TECH] Release of AGVCR - recording AG > >>>sessions > >>> > >>> > >>> > >>> > >>>Hi Zsolt, > >>> > >>>Yea, that's one thing noted in the 'known issues', the > >>>problem with recording from unicast. I'm glad to hear > >>>AGConnector helped, I like that program. There's some > >>>old code in there that I wrote for trying to send data > >>>to QuickBridge (since it seems to need to receive > >>>something in order to send data back to you) but I > never >>>did get it working to any satisfaction. > >>> > >>>Since I'm replying to all I was aware (as is typical > >>>after announcing something works) that under Windows > now >>>it appears to have problems with reading or > displaying >>>the file length, something for me to look at > tomorrow. >>> > >>>Growing pains I think, I've been rewriting a lot of it > >>>(under Linux for the most part) in the last few weeks > as >>>I've considered more things that I wanted to add, > and lo >>>today I 'got the nod' to release it. So I > thought I'd >>>let everyone take a look instead of me > sitting on it a >>>moment longer. This may be good and bad > , but as long as >>>everyone treats it as 'alpha' for now > until more testing >>>is done then I think we'll all be > good. I do not think >>>the file format will need to > change, given all that I >>>have in my 'future plans', so > any recordings made now >>>will work in later versions. If > for some reason it does, >>>I will make available the > converter program I have used >>>to convert previous > recordings to the new format. >>> > >>>Thanks for trying it out, incidentally, what version > did >>>you use, Windows or Linux? > >>> > >>>Derek > >>> > >>>Quoting "Nagykaldi, Zsolt F. (HSC)" > >>><zsolt-nagyka...@ouhsc.edu>: > >>> > >>> > >>>>Fantastic Derek, thanks! One thing. In bridged unicast > >>>>the recorder can not establish connection with the IPs > >>>>and ports listed. However, in multicast (even with the > >>>>AG Connector) it rocks! > >>>>Zsolt > >>>> > >>>> > >>>>_ _ _ > >>>> > >>>>Zsolt Nagykaldi, PhD > >>>>Research Associate, Clinical IT Specialist > >>>>University Of Oklahoma Health Sciences Center > >>>>Department Of Family And Preventive Medicine > >>>>Oklahoma Center For Family Medicine Research > >>>> > >>>>900 NE 10th Street > >>>>Oklahoma City, OK 73104 > >>>>Phone: (405) 271-8000 Ext.:1-32212 > >>>>Fax: (405) 271-1682 > >>>> > >>>>________________________________ > >>>> > >>>>From: owner-ag-t...@mcs.anl.gov on behalf of Derek > >>>>Piper Sent: Wed 11/9/2005 2:57 PM > >>>>To: Access Grid Technical mailing list > >>>>Subject: [AG-TECH] Release of AGVCR - recording AG > >>> > >>>sessions > > >>> > >>>> > >>>> > >>>> Hi all, > >>>> > >>>> I'm happy to announce that finally I've been > >>>>given the go-ahead to release AGVCR to the community. > >>>>It was a program I started writing around January and > >>>>it was ready for release in a workable incarnation > >>> > >>>some time in June. However, due to possible > 'intellecual >>> > >>>>property' concerns from 'those that deal with those > >>>>things' at IU, I was unable to release it back then. I > >>>>declined to mention it to the community at large until > >>> > >>>this release so as not to 'tease' people with a product > >>> > >>>>they could not get. I won't get into griping about > >>>>that on this list :> Some of you have known about this > >>>>program earlier since we have had AccessGrid meetings > >>>>that I have recorded. For those parties concerned, we > >>> > >>>can communicate off-list on the best way to get the > >>> > >>>> recordings to you. AGVCR is a program to > >>>>record and play back the RTP/RTCP stream that an > >>>>AccessGrid conference uses. The amount of data it > >>>>gathers is certainly non-trivial, a few hours of > >>>>recording with a number of participants can easily > >>>>reach a few gigabytes in size. Timing and minimal > >>>> overhead information is embedded in the file > >>> > >>>for accurate playback. The website for the project is > >>> > >>>> here: > > >>> > >>>http://iri.informatics.indiana.edu/~dcpiper/agvcr/ > > >>> > >>>> I invite anyone interested to take a look, > >>>>download and use it to see > >>>>what you think. I welcome feedback, please bear in > >>>>mind though that it is still being actively worked on. > >>>>A number of changes have been made of late, so testing > >>>>has not been as extensive as it probably should be, > >>> > >>>but that's another reason to get it out there. The > >>> > >>>> website has source for Linux/Unix and a precompiled > >>>>binary for Windows. I may add pre-compiled binaries > >>> > >>>for popular Linuxes if there is interest. > > >>> > >>>> Thanks, > >>>> > >>>> Derek > >>>> > >>>>-- > >>>>Derek Piper - dcpi...@indiana.edu - (812) 856 0111 > >>>>IRI 323, School of Informatics > >>>>Indiana University, Bloomington, Indiana > >>>> > >>>> > >>>> > >>>> > >>> > >>> > >>> > >>> > >>> > >> > >> > >>[Attachment: agvcr.jpg] > > > > > > > > -- > Derek Piper - dcpi...@indiana.edu - (812) 856 0111 > IRI 323, School of Informatics > Indiana University, Bloomington, Indiana > > >
