[Mp4-tech] how to convert cif to qcif

[Mauricio Alvarez]

Hi
You can use ffmpeg [1]:
ffmpeg -s cif -i input_file.yuv -s qcif output_file.yuv
Note 1: Istead of cif or qcif you can put the resolution using the 
numbers: 352x288, 176x144 or any other resolution that you need.
Note 2: ffmpeg asumes that the YUVs are in 4:2:0 chroma subsampling scheme
----
Mauricio
[1] http://ffmpeg.sourceforge.net/
Amy, Mei-Hsuan Lu wrote:
> Hello folks,
> 
>  
> 
> Does any one know any good algorithm/utility to convert CIF format to 
> QCIF format (yuv file)?
> 
> Thanks
> 
>  
> 
> Meihsuan Lu