Re: [CinCVS] titler fade out flicker
I think, the current fader state is unusable. The problem is, that the video and audio min/max levels have to set at once, but their usual range differs (as you writes it too). To scale the audio with Alt-F and with the input box below is good. But video is absolutely different, it should not be touched, the min/max=0/100 is always appropriate. Developers, could the video fader range be detached from the audio range?? Chris On Jul 4 07:48, Joe Friedrichsen wrote: Brendan Conoboy wrote: Joe Friedrichsen wrote: I've noticed that in some videos I've made as well - the background appears to change the way the title fades in. This is still different. In the sample file (http://www.f-forge.com/?d=EdD1UKgj9LQsCupcxJwR), the flicker is quite obvious - it's not coming from a contrast with the background. Rather, the title slowly and smoothly fades out until the final frame of fading out, at which point that single last frame shows the title at full visibility. I can observe this flicker in cinelerra's compositor during playback and during frame-by-frame advancement. I haven't been following this thread closely, but it does sound like something I experienced and resolved. The problem was that I was using fading keyframes and setting them by hand instead of using the slider. That is to say, I'd press the mouse when the cursor was over the part of the timeline I wanted to fade then drag it downward until my compositor window faded out. Because of Cinelerra 2's quirky feature, for some of the last frames it would actually go past fading out and back into visible again. The resolution for this was to use the slider instead of dragging on the timeline. I was under the impression that the video fader was broken in Cinelerra 2, glad to hear it's working! In trying just now, I've noticed that what I'll call the 'asset fader range' (or the limits for the minimum and maximum of the fade line) are a bit inconvenient. Audio generally fades in decibels below zero and video fades in integers between 0 and 100. Setting the limits to -40, 10 helps for fading audio, but doesn't help with video (which benefits from a 0-100 scale). What do Cinelerra users use for their limits to keep sensitivity? Sorry for the OT wander. . . Unfortunately, my problem isn't a video track fader flicker, but the Title effect in Video Effects. Joe ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] titler fade out flicker
Alec Robertson wrote: Hi Joe, After adding a second video track and replacing the flickering titles with new ones, the problem still persists. I've noticed something similar in the past... in my case it was due to extra keyframes along the plugin. Have you enabled View - Plugin Keyframes to check? Hi Alec, thanks for the suggestion. I've been burned by that before, especially with camera motion. Unfortunately, that is not what's happening this time. I turned on the Plugin Keyframes and nothing changed in the view. My project is a simple slideshow with photographs and music. There are crossfade video effects and titles. Only a few titles flicker, and it's quite confusing! Joe ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] titler fade out flicker
Me too, i had a title fading, and at the same time a black background on which a video was appearing (alpha increasing from 0 to 1). My first impression was that the title was flickering, but I think it was only a perceptual impression, looking at the single frames the title intensity is changing correctly, as well as the video. Try to analize the frames of the transition with gimp or another graphic program. You can get the frames as jpeg files by playing the video with: mplayer -vo jpeg yourvideo.avi (not completely sure of the syntax, in case man mplayer) Ciao, Leo --- Alec Robertson [EMAIL PROTECTED] wrote: Hi Joe, After adding a second video track and replacing the flickering titles with new ones, the problem still persists. I've noticed something similar in the past... in my case it was due to extra keyframes along the plugin. Have you enabled View - Plugin Keyframes to check? Alec ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] titler fade out flicker
Leonardo wrote: Me too, i had a title fading, and at the same time a black background on which a video was appearing (alpha increasing from 0 to 1). My first impression was that the title was flickering, but I think it was only a perceptual impression, looking at the single frames the title intensity is changing correctly, as well as the video. Try to analize the frames of the transition with gimp or another graphic program. You can get the frames as jpeg files by playing the video with: mplayer -vo jpeg yourvideo.avi (not completely sure of the syntax, in case man mplayer) I've noticed that in some videos I've made as well - the background appears to change the way the title fades in. This is still different. In the sample file (http://www.f-forge.com/?d=EdD1UKgj9LQsCupcxJwR), the flicker is quite obvious - it's not coming from a contrast with the background. Rather, the title slowly and smoothly fades out until the final frame of fading out, at which point that single last frame shows the title at full visibility. I can observe this flicker in cinelerra's compositor during playback and during frame-by-frame advancement. Joe ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] titler fade out flicker
Joe Friedrichsen wrote: I've noticed that in some videos I've made as well - the background appears to change the way the title fades in. This is still different. In the sample file (http://www.f-forge.com/?d=EdD1UKgj9LQsCupcxJwR), the flicker is quite obvious - it's not coming from a contrast with the background. Rather, the title slowly and smoothly fades out until the final frame of fading out, at which point that single last frame shows the title at full visibility. I can observe this flicker in cinelerra's compositor during playback and during frame-by-frame advancement. I haven't been following this thread closely, but it does sound like something I experienced and resolved. The problem was that I was using fading keyframes and setting them by hand instead of using the slider. That is to say, I'd press the mouse when the cursor was over the part of the timeline I wanted to fade then drag it downward until my compositor window faded out. Because of Cinelerra 2's quirky feature, for some of the last frames it would actually go past fading out and back into visible again. The resolution for this was to use the slider instead of dragging on the timeline. -Brendan ([EMAIL PROTECTED]) ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] titler fade out flicker
Brendan Conoboy wrote: Joe Friedrichsen wrote: I've noticed that in some videos I've made as well - the background appears to change the way the title fades in. This is still different. In the sample file (http://www.f-forge.com/?d=EdD1UKgj9LQsCupcxJwR), the flicker is quite obvious - it's not coming from a contrast with the background. Rather, the title slowly and smoothly fades out until the final frame of fading out, at which point that single last frame shows the title at full visibility. I can observe this flicker in cinelerra's compositor during playback and during frame-by-frame advancement. I haven't been following this thread closely, but it does sound like something I experienced and resolved. The problem was that I was using fading keyframes and setting them by hand instead of using the slider. That is to say, I'd press the mouse when the cursor was over the part of the timeline I wanted to fade then drag it downward until my compositor window faded out. Because of Cinelerra 2's quirky feature, for some of the last frames it would actually go past fading out and back into visible again. The resolution for this was to use the slider instead of dragging on the timeline. I was under the impression that the video fader was broken in Cinelerra 2, glad to hear it's working! In trying just now, I've noticed that what I'll call the 'asset fader range' (or the limits for the minimum and maximum of the fade line) are a bit inconvenient. Audio generally fades in decibels below zero and video fades in integers between 0 and 100. Setting the limits to -40, 10 helps for fading audio, but doesn't help with video (which benefits from a 0-100 scale). What do Cinelerra users use for their limits to keep sensitivity? Sorry for the OT wander. . . Unfortunately, my problem isn't a video track fader flicker, but the Title effect in Video Effects. Joe ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] titler fade out flicker
After adding a second video track and replacing the flickering titles with new ones, the problem still persists. To see a sample of the rendered output, please grab this file: http://www.f-forge.com?d=EdD1UKgj9LQsCupcxJwR (~8sec, 2.1MB m2v) Thanks, Joe ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] titler fade out flicker
Hi Joe, After adding a second video track and replacing the flickering titles with new ones, the problem still persists. I've noticed something similar in the past... in my case it was due to extra keyframes along the plugin. Have you enabled View - Plugin Keyframes to check? Alec ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] titler fade out flicker
plesase submit an xml... bye andraz On ned, 2006-06-25 at 10:09 +0900, Joe Friedrichsen wrote: Hello everyone, I've come across a strange intermittent problem with the Title effect. Just as the text completely fades out, it will briefly flicker at full opacity before disappearing. The length appears to be about 2 frames (or one set of fields), but the flicker does not happen for every title effect: I've only noticed it on the last 4 titles or so. The others at the beginning don't have this flicker. Looking at the xml, nothing appears to be different between PLUGINSETs of titles that work properly and those that flicker. Is there something I should be looking for? I'm using 2.0.0-3svn20060606 from http://www.kiberpipa.org/~minmax/cinelerra/builds/pentium4/ . Thanks, Joe ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra ___ Cinelerra mailing list Cinelerra@skolelinux.no https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
Re: [CinCVS] titler fade out flicker
Andraz Tori wrote: plesase submit an xml... Please find the tar.gz attached. The last four titles are the ones which have the flicker. If you play the video in the compositor, cinelerra will not usually show the flicker (although sometimes it will). However, during rendering or a frame-by-frame advance, the flicker happens. Thanks for taking a look at it, and let me know if I can give you more information. Joe slideshow.tar.gz Description: GNU Zip compressed data
