back again, fps in video

[llmercll]

OK, so im converting a video with an fps of 30, and whenever i covert it, it changes to 24fps.

its important that this movie is in 30 fps because of all the action scenes, i can tell a difference in smoothness between the source and the output, even though the picture quality is superb.

im using constant quatizer 14, when i make the script ad analyze the video i set the fps to 30, it does it automatically actually. but when i inspect it in media player classic is says 24.


anyone know why its doing this and how i can fix it?

[guns1inger]

Post a g-spot or media info of the source file. I suspect that it is 23.976 fps.

What format are you converting it to ?

[llmercll]

im formatting to x264 using the preset dxva HD, changing the main encoding setting to quantizer based 14

for some reason gspot wont give me data for ANY of my x264/mkv files. i wonder why?

also, media player classic usually says 23.976, but for this file it says 24, while the avs script said 30, as does the source video

[guns1inger]

What do you mean by "as does the source video" ?

Media Info will read an mkv file. Use that instead of g-spot. MPC will be reading the framerate from the MKV container header.

A question to you - ignoring the numbers, does the video play back at the correct speed in MPC. I know you want 30 fps, but that is a separate issue. Does it play back correctly in MPC ?

I still believe it is a 23.976 fps video (pretty much anything NTSC not shot on video is), and that the 24 fps is either a common rounding issue in the mkv container, or in MPC (I have seen both).

You can use avisynth to make the video run at 30 fps, but it is not ideal. If you get it wrong, it will run fast and look odd. If you get it right, you will cause blending and other artifacts to the footage, and reduce the quality of the video.

What are you going to watch it back on ?

[llmercll]

im going to watch it on my pc.

the video im converting from is a 30fps wmv. that's what all the "readers" are telling me



that's the converted file

[guns1inger]

The image you have posted from mediainfo clearly shows that the movie has a framerate of 24 fps. MPC is correct.

[poisondeathray]

It would help if you posted the mediainfo from the source

Post your .avs script. If you used the auto script generator it might have screwed up. This might explain the 30fps=>24fps conversion

What is the source? (i.e. video, or theatre/Hollwood movie, animated sequence , etc....)

[llmercll]

The image you have posted from mediainfo clearly shows that the movie has a framerate of 24 fps. MPC is correct.

I told you that!!!



there's the source, its a world of warcraft "story" video. i wanted to maybe compress it a bit because its kind of large and im not fond of wmv. but like i said it keeps changing the fps to 24 from 30.

ill post the script when i can find it i'm looking now

[llmercll]

found the script here, it is

tales_of_the_past_3.avs


for clarification, it's a movie using in game shots from world of warcraft, i guess it would be considered an animation then?

[poisondeathray]

Delete this line in the avs script , then save it under a different name. You are decimating frames. This is one of the many problems you might encounter when using automated tools

TDecimate(cycleR=1)

Then, use the new .avs as input

[llmercll]

wow thanks for the help!!!, so just delete that and my problems are solved? it will be 30 fps?

can you explain to me what the decimating is? and what cycler=1 means?

[jagabo]

TDecimate() removes (preferentially) duplicate frames. It is usually used in the process of restoring 24 fps film frames from from 30 fps video. It's default action is to remove N out of every M frames. CycleR=1 sets N to 1 (also the default). M (Cycle) defaults to 5.

By the way LanczosResize(784,592) doesn't crop the frame. It simply downsizes (shrinks) it from the source's 800x600. What's the point?