imwri and .dpx sequences

[LarryHotdogs]

Hello,

I am trying to use VapourSynth to read in a sequence of .dpx files, which I believe should be supported. When I preview the script in the editor, I get the message:

Error getting the frame number 0:
Read: Format mismatch for frame 0, is RGB30 but should be RGB48


Running 'check script' results in:

Script was successfully evaluated. Output video info:
Frames: 864 | Time: 0:00:28.800 | Size: 1920x1080 | FPS: 30/1 = 30 | Format: RGB48

Besides that the frame rate should be 23.976, it looks like it's detecting the sequence okay.

My script is as follows:

import vapoursynth as vs
core = vs.get_core()

core.std.LoadPlugin(r"C:\Program Files\VapourSynth\plugins64\imwri64\imwri.dll")
video = core.imwri.Read(r"path_to_v001.%04d.dpx", 1001)

video.set_output()

And then I assume it could be a simple fix just by manually setting some properties so I've tried playing around with things like
video = core.std.SetFrameProp(video, prop="Format", intval=vs.RGB48)
video = core.std.SetFrameProp(video, prop="FPS Num", intval=24)


But I have no idea what I'm doing so I'm sure that's complete nonsense.


Using VapourSynth r29 and imwri test6

Anyone have any ideas?


Thanks!

[AzraelNewtype]

You probably want this for the FPS:

video = core.std.AssumeFPS(video, fpsnum=24000, fpsden=1001)

The format is trickier, because I don't know that you can just set its format like that. That's not usually a frame property. I mean, I know how you could convert it, (look at resize) but that may not actually be desirable. See if adding mismatch=1 to the read command helps any maybe?

[Are_]

Are you sure all your input files have the same format?

[LarryHotdogs]

Nice, AssumeFPS works. Adding mismatch=1 to the read changes check script to this:

Script was successfully evaluated. Output video info:
Frames: 864 | Time: 0:00:36.036 | Size: 0x0 | FPS: 24000/1001 = 23.976 | Format:

But then crashes the editor when I try to preview it.

I was getting a lot of crashes trying to read dpxs in AviSynth too so it may well be an imagemagick issue...

All the frames in the sequence are the same format.

[Myrsloik]

Can you make thw three first images in the sequence available?
It could be a bug.

[LarryHotdogs]

Can you make thw three first images in the sequence available?
It could be a bug.

sure: https://www.dropbox.com/s/a84t4bvlf2wmv9f/dpx_test.zip?dl=1


Thanks for everyone's help on this.

[Are_]

I have problems with this too:
1. With vs I created some RGB48 dpx files.
2. I tried to read back with imwri.
3. Got "Error getting the frame number 0: Read: Format mismatch for frame 0, is RGB48 but should be RGBS"

IM is compiled with hdri an q16.

[aladdin4d]

Getting the exact same error with an OpenEXR sequence that worked a couple of weeks ago with r28 so it's something new with r29.

"Error getting the frame number 0: Read: Format mismatch for frame 0, is RGB48 but should be RGBS"

[Myrsloik]

I broke hdri support in r29 apparently. I think I fixed it but imagemagick is so annoying (4 separate configurations) to test so it'll take a while before I know it's ready.

[aladdin4d]

Imagemagick being annoying.......imagine that!

[Myrsloik]

I think I've fixed the bug now. The problem is that imagemagick is shit and doesn't want to make a working windows version. Again. And they eliminated all old source code archives. So I can't go back. Because it's all shit.

But at least the bug is fixed. May I suggest Linux?

[Myrsloik]

Try the new test version.