How do I encode a 120fps video to 24fps with RealAnime?

[notags]

Currently using RA3.1 here. I tried encoding a 120fps video source and while RA has no problems doing it, it takes more than 4 times the duration because encoding speed is the same and I have more than 4 times the number of frames for the video.

I tried using ChangeFPS(23.976), but the output ends up incredibly jerky like a slideshow. I know this problem can be overcomed in ERMP by converting the source into a variable frame MKV, but this technique does not work in RA. Is there anyway I can reduce the output frame to 23.976 while still maintaining fluidity?

Thanks for any advice.

[Sirber]

x264 or RV?

[notags]

x264 or RV?

x264 :)

[Sirber]

Due to MP4/MKV output bug, I have to output to RAW then convert to AVI (later MP4). I use the FPS of the source instead of the output FPS.

http://forum.doom9.org/showthread.php?p=713464#post713464

I'm working on a workaround... no ETA. Sorry. In the meantime, best use VFW.

[notags]

Due to MP4/MKV output bug, I have to output to RAW then convert to AVI (later MP4). I use the FPS of the source instead of the output FPS.

http://forum.doom9.org/showthread.php?p=713464#post713464

I'm working on a workaround... no ETA. Sorry. In the meantime, best use VFW.

Thanks for the replies. Will use VFW as directed, but I don't quite understand the 2-pass option of X264 in ffdshow. I tried the tips provided in the ffdshow developpment #2 thread by enabling "write" followed by "use" option in the output panel, but it does not seem to make much sense as I have to select "one pass-constant bitrate". What's the point of doing double pass if all I want is constant bitrate throughout?

I understand this goes beyond RA and it's OK if you do not wish to respond. Once again, thank you for the great proggie. :thanks:

[Sirber]

Best use the VFW x264 codec, not ffdshow :) Look in AVC forum for the latest build.

There is not point in 2-pass CQ.

[notags]

Best use the VFW x264 codec, not ffdshow :) Look in AVC forum for the latest build.

There is not point in 2-pass CQ.

Roger that, thanks for the info.

[huang_ch]

If I remember correctly, you should use ConvertFPS instead of ChangeFPS. For ChangeFPS only change the fps value, it doesn't do any thing to the raw frames, so there's always 120 frames per second, while the ConvertFPS will do the real convert work.

[Sirber]

seems I can output to MKV with x264 now, which means I can skip the "RAW to AVI" part and which solve my FPS issue. I'm currently testing if everything is in order and if so, I will release 3.2.

So far in my test rev 295 of x264 is ~10 FPS faster :D