[FFmpeg-user] Recording logitech ultra vison,

[Sw@g]

Hi all,

with the addition of "-b 64m" option using mpeg4 codec the video quality 
is great, similar to mencoder!

Now I am still searching on how to add the current time on the video, 
can't find any command yet
with -vf drawtext, and I still have the same issue as previously 
reported some times to times.

any help will be appreciated,

Regards,


On 06/07/2011 11:19 AM, Paul Gardiner wrote:
> On 07/06/2011 10:33, Sw at g wrote:
>> 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.
>
> I've recently been using ffmpeg with libx264 to transcode from some
> BBC HD recordings and the results were indistinguishable from the
> original. I was doing it in a way that avoided any scaling, so I
> wonder if the loss of sharpness is because of the scaling stage.
>
> Paul.
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user