[Libav-user] How to increase frame rate in ffmpeg?

[Alex Cohn]

On Oct 12, 2011 3:58 AM, "김희숙" <hskim095 at naver.com> wrote:
>
> Hello,
>
>
>
> I'm wondering how to increase frame rate in FFMpeg.
>
> I added some trace in vfwcap.c and I calculated frame rate.
>
> I found out vfwcap driver can capture 15 frame per second but ffmpeg sends
30 at fps if I set up -r 30 option.
>
>
>
> How can control frame rate in FFMpeg?

There are two sides of it: you should initialize the format and codec
contexts according to the desired frame rate, and in your encode loop you
should give each raw frame two times.

> I'll appriciate any feedback.
>
>
>
> Best Regards,
>
> HSK
>
>
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