[FFmpeg-user] Recording logitech ultra vison,

[Sw@g]

Right,

So I am back in front of the PC and the error from -vf drawtext is the 
the following:

Incompatible pixel format 'yuyv422' for codec 'mpeg4', auto-selecting 
format 'yuv420p'
ffmpeg: missing argument for option 'vf'
FFmpeg version git-N-28713-g65daa94, Copyright (c) 2000-2011 the FFmpeg 
developers

And I tried the -crf 18 or 20 or 22 and that didn't change the quality.

But it's weird the quality with the -b 64m is back to bad, wondering if 
the amount of light will affect the quality (as the weather is turning 
dark now).

Regards,


On 06/07/2011 01:45 PM, Paul Gardiner wrote:
> On 07/06/2011 13:39, Clément Bœsch wrote:
>> On Tue, Jun 07, 2011 at 12:38:46PM +0100, Sw at g wrote:
>>> Hi all,
>>>
>>> with the addition of "-b 64m" option using mpeg4 codec the video
>>> quality is great, similar to mencoder!
>>>
>>
>> H.264 is far superiour to mpeg4, you should try to find a better
>> profile/setting.
>
> And control the quality not the bit rate. Replace "-b 64m" by "-crf 18"
> although 18 is probably overkill. 20-22 may be fine.
>
> Paul.
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