WATERMARK help!

[legendvij]

How do i add watermark to my video ?

I added a watermark to video but the size increases up to 10 times than the actual file size!

[redwudz]

To add a watermark, you have to re-encode the video. I suspect you didn't use the same settings or codec as the original video, hence the change in size. Check the bitrate (And codec) of the original and the watermarked video with Gspot and you may see the problem. Generally, when I re-encode, I add some bitrate to somewhat make up for the lose of quality from re-encoding. But not ten times as much.

And welcome to our forums.

[legendvij]

Thanks for ur tips.Can u suggest me a good watermarking s/w.

[mats.hogberg]

https://www.videohelp.com/guides/put-a-custom-watermark-on-your-video-id714#714

/Mats

[PuzZLeR]

Maybe a stupid question, but I'm sure you folks will forgive me anyway if that's the case.

It's real simple with that link, or any editing package that you're familiar with, but is there anyway to add a watermark without re-encoding (to save time, and of course, quality)? I'm thinking there must be something that carefully "stamps" your video and doesn't touch the other pixels - something maybe commercial applications can benefit from I would think (ex: their logo).

Otherwise, if re-encoding is a must, then I totally agree with redwudz and the need to find the codec and the compensation of the extra little bitrate.

[mats.hogberg]

there must be something that carefully "stamps" your video and doesn't touch the other pixels

No. Not if you want it permanent.
TV and streaming is another beast, where station bugs and other stuff is overlayed as the video is transmitted. No reencoding is needed under those circumstances.

/Mats

[manono]

but is there anyway to add a watermark without re-encoding

You could do it with a subtitle. If for DVD you could even make it a forced subtitle. But unless you're willing to do that, mats.hogberg gave you the answer

[PuzZLeR]

Thanks for the response guys. Yup, those station IDs and even the DivX logo on playback are indeed a "soft" addition of a watermark when it's on playback/decoding/post processing/etc.

I do think it's possible still as a "hard" insert without re-encoding - but I'm thinking that if it does indeed exist we'd be talking about special effects software, with tons of processing and recreation of content/backgrounds/movement such as that used in advanced animation/etc. But that would be pretty much Hollywood domain.

[AlanHK]

I do think it's possible still as a "hard" insert without re-encoding - but I'm thinking that if it does indeed exist we'd be talking about special effects software, with tons of processing and recreation of content/backgrounds/movement

The "tons of processing and recreation of content" WOULD be re-encoding.

You can do it as an overlay, and I think the only overlay that's (almost) universally supported is as a subtitle.

[PuzZLeR]

The "tons of processing and recreation of content" WOULD be re-encoding.

Actually, you're correct. I was thinking along the lines of losslessness and overlooked the fact that re-encoding can be lossless with certain methods and codecs.

What I should have said instead about the "tons of processing" is the gruntwork necessary to recreate every pixel losslessly, and exactly as it was before, but of course with a new layer on top of it. I'm sure this exists already for those with a multi-million dollar budget in Movie-Land, but regardless, in theory, it WOULD be re-encoding nonetheless.