[FFmpeg-user] low quality video using raspberry pi

Lou lou at lrcd.com
Sun Feb 21 07:32:42 CET 2016


On Sat, Feb 20, 2016, at 09:00 PM, shuvro majumder wrote:
> Hello, I am trying to take very low quality video using raspberry pi and
> a
> usb webcam. For this firstly I took 320p video and then converted it to
> h264 by this:
> 
> ffmpeg -f video4linux2 -s 320*240 -r 20 -i /dev/video0 out.mpg
> 
> ffmpeg -i out.mpg -c:v libx264 -preset slower -crf 30 -c:a copy
> output.h264
> 
> Is it possible to make a video of lower quality without converting? It
> it possible to make a video of lower quality than this? If I try to
> save h264 directly writing out.h264, frame-rate decreases with time,
> and it becomes 6-7 fps after some time.

You should always provide the complete console output with each command.

Why do you want low quality?


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