Recommended videos/software to test 23.976, 24, 25Hz motion?

[shae]

Can anyone recommend a good set of videos to test motion and tearing at 23.976, 24, and 25 fps?

Also, any recommended software to do the same, including checking monitor refresh rates, etc.?

[wonkey_monkey]

For motion, I'd go with something simple, like a checkerboard translating in a circular motion.

That might help you spot tearing too, but better for tearing could be just a video that flickers from black to white each frame.

[shae]

Thanks. Tearing is less of a problem to spot. Motion is the bigger issue.

Are there ways to make longer-term skips happen sooner? Like, when the rate mismatch causes a skip just every few minutes.

[hello_hello]

It might depend on the renderer being used as to whether the option is available, but for MPC-HC, "View/Renderer Settings/Tearing Test" will run a tearing test while a video is playing.

Ctrl+J should give you a reasonable amount of info, some of it being renderer dependant again. I don't always understand how to interpret it all myself, but MadVR seems to be quite informative.

ReClock supplies basic refresh rate/frame rate information and can run a tearing test with some renderers.

Are there ways to make longer-term skips happen sooner? Like, when the rate mismatch causes a skip just every few minutes.

You could use Reclock to fiddle with the frame rate a little. While playing a 25fps video using a 50Hz refresh rate, and Reclock doing it's thing, MadVR was reporting 1 repeated frame every day or so. Getting Reclock to change the frame rate to 24fps, MadVR reporteds a repeated frame every second (after re-opening the video to reset it). I'm not sure if that's exactly what you're after but if you can't make longer-term skips happen sooner etc, maybe you could at least make them predictable?

[shae]

Mainly trying to get skip-free playback without having to watch carefully for multiple minutes.

I'm familiar with MPCHC's Ctrl-J, but I don't find the graph a good way to detect skips. Using Reclock to force skips wouldn't be an indication of my normal playback setup.

I'm thinking more along the lines of getting MPC, somehow, to start with its drifting sync close to a skip, rather than further away from it. But making the timing predictable would be some help too. Is there a way to get more info, or to elicit "natural" skips, when using EVR (or the Sync Renderer, though not sure if I should use it or not), maybe with an additional DirectShow filter?

[Chetwood]

I remember having a video clip where some bar was moving from left to right which would allow you to spot stutters. What tools do people use to create such videos? I don't mean Sony Vegas or something but the tools used to create clips of moving bars.

[huhn]

Mainly trying to get skip-free playback without having to watch carefully for multiple minutes.

I'm familiar with MPCHC's Ctrl-J, but I don't find the graph a good way to detect skips. Using Reclock to force skips wouldn't be an indication of my normal playback setup.

I'm thinking more along the lines of getting MPC, somehow, to start with its drifting sync close to a skip, rather than further away from it. But making the timing predictable would be some help too. Is there a way to get more info, or to elicit "natural" skips, when using EVR (or the Sync Renderer, though not sure if I should use it or not), maybe with an additional DirectShow filter?

madVR calculates this for you
just open a movie press control + j and than control + r to reset the stats. it will take some time to calculate the right number for you but you don't have to watch it you can just wait a couple of minutes and look at the stats. if a frame gets dropped or repeated it is shown too.

[Warperus]

Chetwood
Nokia Monitor Test draws such bars, you only need to capture it and encode.

[shae]

What tools do people use to create such videos?Some options I can think of are AviSynth, or creating a set of images with automation in a photo editor, and turning that into a video.

madVR calculates this for youI don't use madVR normally. Would these stats have any relevance to MPCHC's stock EVR or Sync Renderer?

[huhn]

I don't use madVR normally. Would these stats have any relevance to MPCHC's stock EVR or Sync Renderer?

the clock should be always the same the renderer shouldn't matter.

and for file try something like that: http://www.avsforum.com/forum/40-flat-panels-general-oled-technology/1620098-mkv-h-264-motion-test-patterns-23-976-24-25-29-97-30-50-59-94-60hz.html

[shae]

Thanks. I get the sense that there are still different vsync usage/adjustment strategies (e.g., MPCHC's "alternate vsync", "accurate vsync"), but I'll check how madVR correlates with EVR or SyncRenderer.

[drmpeg]

Here's a clip that may be useful. 5 minutes at 24.0 fps.

http://www.w6rz.net/movingbar.mkv

If it's useful, I can post the other frame rates. Also, the movement rate and size/position of the bar can be changed.

Ron

[hello_hello]

MadVR tells you how many frames will be dropped or repeated (via CTRL+J). If it doesn't settle down to s steady number, use CTL+E to reload the video (MPC-HC) which will reset the stats.

[Chetwood]

Also, the movement rate and size/position of the bar can be changed.
How's that?

[drmpeg]

How's that?

Sorry, I didn't mean by user control. I meant the clip can be generated with different parameters. Here's the source code for the generator.

http://www.w6rz.net/movingbar.c

Ron

[Chetwood]

Thx, but I guess I'll wait for someone to release a compiled version or something ;)

[shae]

Thanks.