[FFmpeg-user] 回复: How to determine the video is interlaced

Carl Eugen Hoyos cehoyos at ag.or.at
Mon Apr 9 23:29:06 CEST 2012

iefvHRS <lovexue4ever <at> qq.com> writes:

>      I tried this filter.but the reports shown after encoding.
> How can I determine it before encoding?

Decoding is necessary to determine if the input is interlaced, 
if you you encode immediately or later is your decision...

Carl Eugen

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