vspreview: Source Not Working

[jay123210599]

Using LibavSMASHSource (core.lsmas.LibavSMASHSource) for vspreview doesn't even though I have LSMASHSource.dll installed for VapourSynth. How do I fix that?

[Selur]

No details,...

I have LSMASHSource.dll installed for VapourSynth
What does 'installed' mean exactly? Maybe you did something wrong there?
If the dll isn't located inside a folder that is scanned for autoloading, Vapoursynth won't know about it.

In case you use a portable version of Vapoursynth, you might need to load the plugin.
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/SourceFilter/LSmashSource/LSMASHSource.dll")
clip = core.lsmas.LibavSMASHSource(source="G:/TestClips&Co/files/5000frames.mp4")
works fine here.
If your source isn't a mp4/mov you should not use LibavSMASHSource, but LWLibavSource.
Also, Vapoursynth should report some error which hints into what is going wrong in your setup.

[jay123210599]

No details,...


What does 'installed' mean exactly? Maybe you did something wrong there?
If the dll isn't located inside a folder that is scanned for autoloading, Vapoursynth won't know about it.

In case you use a portable version of Vapoursynth, you might need to load the plugin.
core.std.LoadPlugin(path="F:/Hybrid/64bit/vsfilters/SourceFilter/LSmashSource/LSMASHSource.dll")
clip = core.lsmas.LibavSMASHSource(source="G:/TestClips&Co/files/5000frames.mp4")
works fine here.
If your source isn't a mp4/mov you should not use LibavSMASHSource, but LWLibavSource.
Also, Vapoursynth should report some error which hints into what is going wrong in your setup.

My video is a mkv file, and the .dll is in the plugins64 folder.

[Selur]

My video is a mkv file
Then you should not use 'core.lsmas.LibavSMASHSource', but 'core.lsmas.LWLibavSource'.

[LightArrowsEXE]

It would really help if you posted your stacktrace so we could take a look at the exact error.

[jay123210599]

It would really help if you posted your stacktrace so we could take a look at the exact error.

Here's the information of my video:
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5.1
Format settings : CABAC / 11 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 11 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 23 min 3 s
Bit rate : 1 574 kb/s
Nominal bit rate : 1 974 kb/s
Width : 640 pixels
Height : 480 pixels
Display aspect ratio : 4:3
Frame rate mode : Constant
Frame rate : 24.000 FPS
Original frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.214
Stream size : 260 MiB (76%)
Writing library : x264 core 49 svn-546M
Encoding settings : cabac=1 / ref=8 / deblock=1:-6:-6 / analyse=0x3:0x133 / me=umh / subme=6 / brdo=1 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / chroma_qp_offset=0 / slices=1 / nr=0 / decimate=1 / bframes=3 / b_pyramid=1 / b_adapt=1 / b_bias=0 / direct=3 / wpredb=1 / bime=1 / keyint=250 / keyint_min=25 / scenecut=40 / rc=2pass / bitrate=1974 / ratetol=1.0 / rceq='blurCplx^(1-qComp)' / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / pb_ratio=1.30
Default : Yes
Forced : No

https://imgur.com/6MAn8eT

[Z2697]

Then you should not use 'core.lsmas.LibavSMASHSource', but 'core.lsmas.LWLibavSource'.

That's the problem. I'll bet 50 cents.

It would really help if you posted your stacktrace so we could take a look at the exact error.

;) In the meantime can you help with this:
https://github.com/HomeOfAviSynthPlusEvolution/L-SMASH-Works/issues/73

[LightArrowsEXE]

Here's the information of my video:

Could you post the full error it gives you (which is the stacktrace)? If that doesn't work, upload your video so we can look at that directly, please.

[jay123210599]

Could you post the full error it gives you (which is the stacktrace)? If that doesn't work, upload your video so we can look at that directly, please.

[importer: Error]: failed to find the matched importer.
2024-10-08 07:01:04.323: root: ERROR: Traceback (most recent call last):
File "C:\Users\User\AppData\Local\Programs\Python\Python312\Lib\site-packages\vsengine\vpy.py", line 219, in _execute
runpy.run_path(str(script), module.__dict__, module.__name__)
File "<frozen runpy>", line 286, in run_path
File "<frozen runpy>", line 98, in _run_module_code
File "C:\Users\User\AppData\Local\Programs\Python\Python312\Lib\site-packages\vspreview\core\vsenv.py", line 36, in _monkey_runpy_func
glob_dict = orig_runpy_run_code(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "<frozen runpy>", line 88, in _run_code
File "C:\Users\Jalen\Downloads\comp pys\4\comp.py", line 13, in <module>
clip3 = core.lsmas.LibavSMASHSource(r"C:\Users\User\Downloads\Video Folder\video.mkv")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "src\\cython\\vapoursynth.pyx", line 3110, in vapoursynth.Function.__call__
vapoursynth.Error: lsmas: failed to open file.

[LightArrowsEXE]

Are you sure the video is in that location?
If yes, can you send the video file?

[jay123210599]

Are you sure the video is in that location?
If yes, can you send the video file?


Here is it.
https://mega.nz/file/8VBnCTxa#U_PbLdMeqP44Z-C5fyxd05_1ajL5kOqu6eF8LnpU-9Y

[poisondeathray]

clip3 = core.lsmas.LibavSMASHSource(r"C:\Users\User\Downloads\Video Folder\video.mkv")

vapoursynth.Error: lsmas: failed to open file.[/CODE]

Please read Selur's posts above.

You cannot open a mkv with core.lsmas.LibavSMASHSource - that function is only for MP4/MOV/ISO base media

Use core.lsmas.LWLibavSource for other container formats such as MKV