Re: ffmpeg video generation: quality options

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

--------
* website: http://juliencoder.de - for summer is a state of sound
* SoundCloud: https://soundcloud.com/jeanette_c

What's practical is logical. What the hell, who cares?
All I know is I'm so happy when you're dancing there. <3
(Britney Spears)
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@xxxxxxxxxxxxxxxxxxxx
http://lists.linuxaudio.org/listinfo/linux-audio-user
_______________________________________________
Linux-audio-user mailing list
Linux-audio-user@xxxxxxxxxxxxxxxxxxxx
http://lists.linuxaudio.org/listinfo/linux-audio-user



[Index of Archives]     [Linux Sound]     [ALSA Users]     [Pulse Audio]     [ALSA Devel]     [Sox Users]     [Linux Media]     [Kernel]     [Photo Sharing]     [Gimp]     [Yosemite News]     [Linux Media]

  Powered by Linux