[Libav-user] newbie question: what is the appropriate/best way to obtain frame_rate from a video and how to control it when decoding video?

[Yingzhou Zhang]

hey there.

I have googled a little bit,found 2 way
1:AVFormatContext->streams->time_base.num/den?
2:AVCodecContext-> streams->r_frame_rate?

However the output of the 2 ways are not the same??

Could you tell me what is the exact way to get frame_rate and how to
control it when decoding video?

Thanks a lot
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Best Regards
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