Bug 140204

Summary:	Receiving webcam out of sync when also sending webcam (MSN)
Product:	[Unmaintained] kopete	Reporter:	Paul Beesley <pbeesley1989>
Component:	MSN Plugin	Assignee:	Kopete Developers <kopete-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	alejandro, maxivenezuela, otakuj462
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	unspecified
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Paul Beesley 2007-01-17 19:10:35 UTC

Version:            (using KDE KDE 3.5.5)
Installed from:    I Don't Know
OS:                Linux

Kopete Version: 0.12.3

Firstly, a big thank you for implementing webcam support in kopete!

Description:
When sending webcam to a contact using Windows Live Messenger 8.0 (other versions not tested) all works fine and my contact tells me everything is smooth. When receiving from the same contact, video is also smooth. However, doing both at once makes my contact's video lag and become out of sync. The Kopete interface also lags, (but cpu usage is around 20%.) My video is unaffected and my contact sees no difference. When I stop sending my video, my contact's video becomes very fast for a short time (it's "catching up") and then returns to normal, the kopete interface also returns to normal speed.

Possible explanation:
In older kopete builds the webcam feed was polled every 1000ms for a new image, resulting in 1fps video. Now this is 25fps, the polling interval is 1000ms / fps. My guess would be that the interface and receiving video lag due to the near-constant polling of the video feed.

Details:
OS: OpenSUSE 10.2
Webcam: Quickcam Communicate STX
Driver: http://mxhaard.free.fr/spca5xx.html
Connection: 6mbps down, 0.5mbps up

Comment 1 Jonas P 2007-02-24 21:09:11 UTC

I can confirm this bug on kubuntu 6.10 (edgy), kopete 0.12.4 and using the spca5xx driver, too.

Comment 2 Brandon Munger 2007-03-08 04:47:29 UTC

I can also confirm this on kubuntu 6.10, kopete 0.12.4 using bt878 driver.

Comment 3 Paul Beesley 2007-03-13 21:17:35 UTC

Using the same driver, and now 0.12.4 on KDE 3.5.6, I can confirm that this bug does *not* occur when using the yahoo webcam under the same circumstances. I assume therefore that the bug is specific to msn webcam support, not the driver.

Comment 4 Beppi 2007-05-13 02:44:49 UTC

*** This bug has been confirmed by popular vote. ***

Comment 5 A. Mosteo 2007-05-21 12:26:33 UTC

Bug 145449 might be a duplicate of this one, or share its root.

Comment 6 Amy Brodzik 2007-07-09 18:21:42 UTC

Same problem; running Kubuntu Feisty; also occurred on Edgy. Using Kopete 0.12.5.

As mentioned above too, I have no problems with Yahoo webcam support.

Comment 7 Manuel Amador (Rudd-O) 2007-11-02 13:47:49 UTC

Here when using simultaneously send/receive, kopete freezes intermitently several times a second, and I can see the text I type appear after a while instead of instantaneously.  ov51x-jpeg driver.

Comment 8 Cláudio da Silveira Pinheiro 2008-03-09 04:59:38 UTC

*** Bug 158561 has been marked as a duplicate of this bug. ***

Comment 9 Cláudio da Silveira Pinheiro 2008-03-09 05:00:43 UTC

*** Bug 145449 has been marked as a duplicate of this bug. ***

Comment 10 Cláudio da Silveira Pinheiro 2008-03-09 05:23:21 UTC

*** Bug 153259 has been marked as a duplicate of this bug. ***

Comment 11 Matt Rogers 2008-11-15 06:09:20 UTC

We've completely replaced the current MSN implementation with a new MSN implementation which  If you continue to experience this bug after testing the new implementation (which can be gotten from our subversion repository or with the KDE 4.2 Beta 1 release), PLEASE, open a new bug rather than reopening this bug. Thank you for your time and efforting in helping us find and fix problems in Kopete.