Yes, that would be a very good idea, because this problem made me quite
desperate. I searched the mailing lists but couldn't find anything. Now
I see that the manual does mention something about the RGB - 601 filter,
but when I searched the manual I searched for "brightness" and not
"contrast", so I didn't find it.
Craig Lawson wrote:
This is a rather esoteric issue, and it caused me grief for a long time.
Here's a UI proposal: offer an option to apply ITU-R BT.601 color space
conversion in the render dialog, with a tool tip suggesting you probably
want it for MPEG. The option would give a hint to the clueless, and
experts can use the RGB - 601 filter as they see fit.
Craig.
Bas Alphenaar wrote:
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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