[x264-devel] Questions regarding frame rate conversion

[Ricardo]

1) x264 doesn't support frame interpolation. You have to do it for yourself.

4) Using Avisynth, there's ChangeFPS or ConvertFPS which come built-in, MSU
Frame Rate Conversion<http://compression.ru/video/frame_rate_conversion/index_en_msu.html>,
or just try one of the many frame interpolation scripts for Avisynth in the
Internet.

On Mon, Oct 25, 2010 at 11:41, Michael Repplinger <repplinger at motama.com>wrote:

> Hi list,
>
> I have some questions regarding the H.264 encoder and it would be great
> if some of you could spent a few minutes to answer them.  I have to
> convert a video stream with 25 fps (PAL) to 29.97 fps (NTSC). Apart from
> changing resolution, I have some questions regarding converting the
> frame rate.
>
> 1) Does the x264 encoder internally supports this frame rate conversion
> without changing the playback time ( so that 60sec of the original video
> in 25fps are also 60 sec with the new frame rate)? Or do I have to
> convert the framerate on the uncompressed video frames by myself?
>
> 2) In case the x264 encoder supports frame rate conversion from
> 25fps->29.97fps, which technique is used?
>
> 3) In case the x264 encoder supports frame rate conversion from
> 25fps->29.97fps, is it recommended to use it, or are there other
> techniques that are more recommended togehter with the x264 encoder?
>
> 4) In case the x264 econder does NOT support frame rate conversion,
> could some of you recommend a technique or library for frame rate
> conversion from 25fps->29.97 which achievs a good quality?
>
> Thank you very much in advance.
>
> Best regards
>  Michael
>
>
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