[FFmpeg-user] Recording logitech ultra vison,

[Sw@g]

Hi all,

I am recording my Logitech Ultra Vison using ffmpeg with the following 
command,

"ffmpeg -f video4linux2 -i /dev/video0 -s 640x480 -vcodec mpeg4 -sameq 
cam_`date +%F_%T`.mp4"

However the video quality isn't as it's best, if I am using mencoder 
(which I understand isn't maintain any more)  with x264 codec then the 
picture is much clearer and sharp (same size than ffmpeg)

If I am trying to record the webcam with ffmpeg and libx264 (with the 
-vpre medium option) than the picture quality is the same as mpeg4 codec.

So the question would be, how to have a sharper and clearer image the 
same as using mencoder (see below for the mencoder command line for 
reference)

(mencoder tv:// -tv 
driver=v4l2:width=800:height=600:fps=15:device=/dev/video0  -ovc x264 
-nosound -o cam_`date +%F_%T`.avi)

Also, I would very much like to be able to record the video with the 
time on the bottom corner it, is there such a command?

Should you require any further details, please do not hesitate to 
contact me,

Looking forward for your replies,