Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top
ffmpeg -sameq -i '/var/www/original.flv' -vhook '/usr/lib/vhook/ \
       -x 0 -y 0 -i /var/www/watermark.jpg' /var/www/out/after.flv

The watermark.jpg is a small text under 5kb. After i run it, after.flv is 90mb. Original.flv is only 40mb! Why such large difference?

And there is no sound in the after.flv! the video quality is same though! When i dont use -sameq, after.flv is way too small, and video quality is very poor. also without sound!!!!

share|improve this question

migrated from Sep 13 '10 at 10:19

This question came from our site for professional and enthusiast programmers.

It might help if you show us the complete output of ffmpeg. Please edit your question with the ffmpeg output. – Stu Thompson Jan 12 '10 at 18:41
You are not alone.I have the same problem. Maybe it is because of -sameq. You can try -vcodec copy and -acodec copy. – DocWiki Jun 21 '11 at 5:37

You must log in to answer this question.