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What happened to my logo?

Take a look at

http://www.youtube.com/watch?v=7ZQlVRPFshs

http://www.youtube.com/watch?v=VR58GQr3wV8

See the logo in the bottom-right corner? It's this image:
enter image description here
it's a watermark.bmp. It's not blue, it's red.

I'm using this to embed the logo

enter image description here.

It's the ffdshow filter from http://ffdshow-tryout.sourceforge.net. I'm always using the latest version. And for transcoding I use http://komisar.gin.by/.

Why is my logo suddenly blue?!

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Has it really become blue all of a sudden? Does it happen to all files you encode from now on, or is there a random pattern? I can't see why it would randomly do that. –  slhck Apr 22 '11 at 8:35
    
Yes, all of a sudden. I mean my latest video encoded was youtube.com/watch?v=9G-tV6gbcg8 , it still was red there. Now it's blue all of a sudden. Yes, happens to all files I encode. –  Don Salva Apr 22 '11 at 9:01
    
What I mean is, does it happen for subsequent encodings too? –  slhck Apr 22 '11 at 9:02
    
Yes, for every encoding. No matter what video I choose to transcode, it always is blue from now on. –  Don Salva Apr 22 '11 at 9:03

1 Answer 1

I think there was a change in color spaces.

Let's take a simple example: Maybe you were reading the logo as RGB before. The red portions were stored as 0xFF0000. You could also store it as BGR- and there you would have your swapped red and blue values because the FF part would be interpreted as the blue portion instead of the red one.

Even worse, the video will be converted to YUV instead, where colors could be mixed up even more, since it's now partitioned in Luma and Chroma instead of raw color values.

What I'd suggest is:

  • Find the settings for input/output colorspaces and try to experiment with that. Maybe something was mixed up here.
  • Save a new version of your watermark, maybe with another program.
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