Re: [LAU] ffmpeg video generation: quality options

Hi Jeanette,

On 21/07/2017 09:12, Jeanette C. wrote:
> Jul 21 2017, Chris Caudle has written:
> ...
> Hi Chris,
>> Can you clarify with numbers? Small in resolution or just small in size?
> Small in size. At te moment its images only (no audio). For 125 images,
> making 125 frames, played at an fps of 25 per second (i.e. 5 seconds)
> the video is 420K. OK, if ffmpeg does a good encoding job, in the way
> you describe, the quality could be just as good as the images allow.
> ...

Here there is some specific information about H264 enoding:

https://trac.ffmpeg.org/wiki/Encode/H.264#LosslessH.264

Essentially you can try with something like -crf 18 or even lower... As
explained the scale is from 0 (best) to 51 (worst)

Hope this helps.
Lorenzo.

>
> Jeanette
>
> --------
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Received on Fri Jul 21 20:15:01 2017