[CinCVS] How to Add Title Screens?

2007-12-28 Thread Thomas H. George
I am a complete newbie at video editing but have managed to patch some 
clips together.  I would like them to start following several seconds of 
a title screen.  I have read the title section in the manual and found 
the title icon in Cinelerra:Resources/video effects but the mechanics of 
using this escape me.  I read the HOWTO: Professional-Looking Scrolled 
Credits in Cinelerra and eventually produced a png file which I can load 
into Resources and then move to the viewer where it is displayed as 
white text on a black background.  If I try to put this in a video track 
I just get a vertical bar.


My problem is certainly elementary and probably has been covered many 
times.  If someone would point me toward an appropriate reference I 
would greatly appreciate it.


Tom George

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Re: [CinCVS] How to Add Title Screens?

2007-12-28 Thread Herman Robak
On Fri, 28 Dec 2007 20:23:03 +0100, Thomas H. George  
[EMAIL PROTECTED] wrote:


I am a complete newbie at video editing but have managed to patch some  
clips together.  I would like them to start following several seconds of  
a title screen.  I have read the title section in the manual and found  
the title icon in Cinelerra:Resources/video effects but the mechanics of  
using this escape me.  I read the HOWTO: Professional-Looking Scrolled  
Credits in Cinelerra and eventually produced a png file which I can load  
into Resources and then move to the viewer where it is displayed as  
white text on a black background.  If I try to put this in a video track  
I just get a vertical bar.


My problem is certainly elementary and probably has been covered many  
times.  If someone would point me toward an appropriate reference I  
would greatly appreciate it.


 By default, a still image is treated just like a video frame.
That is, it will be take up the same interval as one single video
frame on the timeline, typically 1/25 second or 1/30 second.

 Since still images don't have a native duration, it is perfectly
OK to extend their duration by dragging the end of the vertical bar
you see on the timeline.  You may have to zoom the timeline view
until the bar gets a few pixels wide.  The view controls are at
the bottom of the timeline window.


 Variations of the question above come up from time to time.
Are there some hints that the GUI could give new users to make
this more discoverable? (apart from a wizard telling You just
loaded a single image to the timeline. *sneer*)

--
Herman Robak

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[CinCVS] YUV4MPEG stream too dark

2007-12-28 Thread Bas Alphenaar

Hello Cinelerra people,

Today I tried to render out a movie I made with Cinelerra revision 1045 
via a YUV4MPEG stream. However, the resulting video seems to be too dark 
compared to the video in the compositor. I turned on Use Pipe and used 
mencoder with the following commands:


mencoder - -ovc x264 -x264encopts bitrate=3000 -o %
mencoder - -ovc lavc -lavcopts vcodec=mjpeg:vbitrate=3000 -o %

I also tried x264 and MJPEG with ffmpeg and they have the same problem. 
I think the problem lies with the YUV4MPEG stream that Cinelerra 
generates, because no matter what the codec or the encoding program is, 
the video is always too dark. Any suggestions? Or maybe this is a bug?


Bas Alphenaar


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Re: [CinCVS] YUV4MPEG stream too dark

2007-12-28 Thread Craig Lawson
Bas,
  Try adding the RGB - 601 filter to your video track(s). Configure
the filter for RGB - 601 compression (the default). Does that make it
work?

Craig.


Bas Alphenaar wrote:
 Hello Cinelerra people,

 Today I tried to render out a movie I made with Cinelerra revision
 1045 via a YUV4MPEG stream. However, the resulting video seems to be
 too dark compared to the video in the compositor. I turned on Use
 Pipe and used mencoder with the following commands:

 mencoder - -ovc x264 -x264encopts bitrate=3000 -o %
 mencoder - -ovc lavc -lavcopts vcodec=mjpeg:vbitrate=3000 -o %

 I also tried x264 and MJPEG with ffmpeg and they have the same
 problem. I think the problem lies with the YUV4MPEG stream that
 Cinelerra generates, because no matter what the codec or the encoding
 program is, the video is always too dark. Any suggestions? Or maybe
 this is a bug?

 Bas Alphenaar


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Re: [CinCVS] YUV4MPEG stream too dark

2007-12-28 Thread Bas Alphenaar

Thank you, it worked!

Craig Lawson wrote:

Bas,
  Try adding the RGB - 601 filter to your video track(s). Configure
the filter for RGB - 601 compression (the default). Does that make it
work?

Craig.


Bas Alphenaar wrote:

Hello Cinelerra people,

Today I tried to render out a movie I made with Cinelerra revision
1045 via a YUV4MPEG stream. However, the resulting video seems to be
too dark compared to the video in the compositor. I turned on Use
Pipe and used mencoder with the following commands:

mencoder - -ovc x264 -x264encopts bitrate=3000 -o %
mencoder - -ovc lavc -lavcopts vcodec=mjpeg:vbitrate=3000 -o %

I also tried x264 and MJPEG with ffmpeg and they have the same
problem. I think the problem lies with the YUV4MPEG stream that
Cinelerra generates, because no matter what the codec or the encoding
program is, the video is always too dark. Any suggestions? Or maybe
this is a bug?

Bas Alphenaar



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