ImageMagick writer/reader

[jackoneill]

Originally Posted by sneaker_ger

Behaves exactly the same. Even "imwrif" does not exist, only "imwri".

Hmm, indeed. Anyway, I compiled it again. This time it's definitely "imwrif".

http://ulozto.net/xTaV1SY2/imwri-r32-win64-7z

Does it crash when you pass --info to vspipe or just when you make it output the clip?

[LigH]

Users of ImageMagick (also indirectly by image conversion services, especially when available via web) shall close security holes immediately:

ImageTragick

[sneaker_ger]

Originally Posted by jackoneill

Hmm, indeed. Anyway, I compiled it again. This time it's definitely "imwrif".

http://ulozto.net/xTaV1SY2/imwri-r32-win64-7z

Does it crash when you pass --info to vspipe or just when you make it output the clip?

That version crashes as well. --info is enough to make it crash. Says "NULL passed to getPluginPath".

[jackoneill]

Originally Posted by sneaker_ger

That version crashes as well. --info is enough to make it crash. Says "NULL passed to getPluginPath".

Oops. That was a small bug unrelated to your original crash. Fixed in this one: http://ulozto.net/xP4Ldykd/imwri-r32-win64-7z

[sneaker_ger]

Crashes with exr (but works with e.g. png).

[jackoneill]

Originally Posted by shader

When I use Test7, unfortunatelly I can't load a sequence of files anymore.

Test7 with wildcard:

import vapoursynth as vs
core = vs.get_core()
core.std.LoadPlugin(path='C:/Program Files (x86)/VapourSynth/plugins32/imwri7/libimwri.dll')
v = core.imwri.Read( filename=r"d:/test/%d.png", firstnum=1001)
v.set_output()

==> not ok , "Read: No files matching the given pattern exist"

Thanks!!!

Wildcards should work again:
https://ulozto.net/xaWaZ5NM/imwri-wildcards-win32-7z
https://ulozto.net/x9zryeNx/imwri-wildcards-win64-7z

[shader]

Thanks a lot!!!!!
It's working well and just one dll remained!

[jmac698]

Does it read 16 bit TIFFs? Or even RAW files (*.cr2)? That would be amazing, immedately solving some plans I have for raw processing (like median denoising)

[Keiyakusha]

With this plugin, is it possible to read:
a) 16bit PNG sequence into RGB48 video?
b) 4:2:0 JPEG sequence into YV12 video? (same for other variants of subsampling)

If I am reading 16bit PNG sequence into RGBS video, will fmtc.bitdepth(clip, bits=16) produce RGB48 output identical to the case a) ? If not, is there a function that will?

[Myrsloik]

Originally Posted by Keiyakusha

With this plugin, is it possible to read:
a) 16bit PNG sequence into RGB48 video?
b) 4:2:0 JPEG sequence into YV12 video? (same for other variants of subsampling)

If I am reading 16bit PNG sequence into RGBS video, will fmtc.bitdepth(clip, bits=16) produce output identical to the case a) ? If not, is there a function that will?

a) If you compile the plugin against a Q16 imagemagick (Without HDRI), yes, that's what should happen.
b) No yuv output support because imagemagick hates stuff like that. You'll always get rgb. But FFMS2 should decode it properly to YUV.

If you use round to nearest in the conversion, yes, since 32 bit float can accurately represent it.

Not actually tested but that's what I expect.

[Keiyakusha]

Originally Posted by Myrsloik

a) If you compile the plugin against a Q16 imagemagick (Without HDRI), yes, that's what should happen.
b) No yuv output support because imagemagick hates stuff like that. You'll always get rgb. But FFMS2 should decode it properly to YUV.

If you use round to nearest in the conversion, yes, since 32 bit float can accurately represent it.

Not actually tested but that's what I expect.

Sounds good, thanks! I'll do some tests when I'll have time then.

[dipje]

... But FFMS2 should decode it properly to YUV....

FFMS2 handles image sequences? I tried something like %04d in the filename once and it didn't like it (Vapoursynth plugin that is). Was I trying it wrong?

[Myrsloik]

Originally Posted by dipje

FFMS2 handles image sequences? I tried something like %04d in the filename once and it didn't like it (Vapoursynth plugin that is). Was I trying it wrong?

It doesn't handle it so you'll have to use some python code to get around it.

[dipje]

d'oh.. that's me coming from the avisynth era. Never thought of using python itself for problems like this .

[dipje]

'It' seems to crash when loading a single DPX file (Created by ffmpeg IIRC).

Vapoursynth-editor shows something in RGB30 (which is correct) but crashes, 'vspipe -i' also crashes. Probably some fault in ffms2 I guess.

[poisondeathray]

Originally Posted by dipje

FFMS2 handles image sequences? I tried something like %04d in the filename once and it didn't like it (Vapoursynth plugin that is). Was I trying it wrong?

Originally Posted by Myrsloik

It doesn't handle it so you'll have to use some python code to get around it.

Can you post an example of using python to load and image sequence with ffms2 please, for a python newbie

[Myrsloik]

Originally Posted by poisondeathray

Can you post an example of using python to load and image sequence with ffms2 please, for a python newbie

Sure can. Enjoy this beauty of scripting:

import vapoursynth as vs

first_image = 4
num_images = 160
filename_pattern = 'D:/imgseq/output_{0:05d}.jpg'

c = vs.get_core()
placeholder_clip = c.std.BlankClip(clip=c.ffms2.Source(filename_pattern.format(first_image), cache=False), length=num_images)
def image_loader(n):
    return c.ffms2.Source(filename_pattern.format(n + first_image), cache=False)[0]
clip = c.std.FrameEval(placeholder_clip, image_loader)
clip.set_output()

The roundabout way of doing it is to avoid having a gazillion ffms2 instances created at once.

[poisondeathray]

Originally Posted by Myrsloik

Sure can. Enjoy this beauty of scripting:

import vapoursynth as vs

first_image = 4
num_images = 160
filename_pattern = 'D:/imgseq/output_{0:05d}.jpg'

c = vs.get_core()
placeholder_clip = c.std.BlankClip(clip=c.ffms2.Source(filename_pattern.format(first_image), cache=False), length=num_images)
def image_loader(n):
    return c.ffms2.Source(filename_pattern.format(n + first_image), cache=False)[0]
clip = c.std.FrameEval(placeholder_clip, image_loader)
clip.set_output()

The roundabout way of doing it is to avoid having a gazillion ffms2 instances created at once.

It works nicely, thanks

Seek latency is a bit high, but I'm not complaining.

Sometimes the vpy imagemagick plugin has problems with some formats and it's a nice alternative just in case

[Tormaid]

What exactly is the "mismatch" option supposed to do? VS always crashes for me when I have an output with varying dimensions when mismatch is set to "True."

[jackoneill]

Originally Posted by Tormaid

What exactly is the "mismatch" option supposed to do? VS always crashes for me when I have an output with varying dimensions when mismatch is set to "True."

From the documentation:

mismatch
Allow reading of multiple images with different resolutions. If required and not set, an error will be generated.

Tell me about this crash.