Add a Watermark to a Video with ffmpeg
July 15th, 2009 by Mitch Frazier in
Download in .ogv format
__________________________
Mitch Frazier is an Associate Editor for Linux Journal and the Web Editor for linuxjournal.com.
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Works Sort Of
On August 14th, 2009 Thomas Bond (not verified) says:
Hi All,
Got the watermarking to work sort of. I have the watermark but I also have a gray cast to the original video. Looks like the 808080 background is not transparent. Any ideas?
Thanks!
Tom
Check Your Image
On August 14th, 2009 Mitch Frazier says:
For reference, the purpose of the 808080 is described below (taken from the ffmpeg documentation):
The only thing I can think of is that you've got a problem with the image and it's not in the format that you think it is. Double check the background to make sure it's all 808080. Also make sure that the image is the same size as the video. The documentation doesn't state what, if anything, might be done to an image that is of a different size than the video before it's used to watermark the video.
This is a known good watermark image, try it and see what you get from it.
__________________________Mitch Frazier is an Associate Editor for Linux Journal and the Web Editor for linuxjournal.com.
Images From Videos
On July 25th, 2009 videocaptures (not verified) says:
Fast video indexer is a video capture software that can capture video frames automatically from a list of videos and create index web pages, index pictures or a list of images.
ffmpeg removed support for
On July 15th, 2009 Artem Russakovskii (not verified) says:
ffmpeg removed support for vhook a while ago, at least in SVN, in favor of libavfilter. You can see the note here: http://windforce.ellil.net/d/ffmpeg/hooks.html. Therefore, this vhook idea isn't going to work unless you are using an old version of ffmpeg, and it's no longer supported anyway. :(
Not that Old
On July 16th, 2009 Mitch Frazier says:
It was deprecated in the 0.5 version that was released in March of this year and won't be removed until the next version.
__________________________Mitch Frazier is an Associate Editor for Linux Journal and the Web Editor for linuxjournal.com.
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