Avisynth virtual file system - Page 13

poisondeathray · 14th April 2018, 15:35

Quote:

Originally Posted by mtamimi

*edit*
I have to add that I am only using a script to transcode the Blu-Ray video to x264...In other words, this loss due to conversion, does it matter in my case since I am converting from lossless to lossy?!

Then you don't need avfs

avfs is to make a "fake" virtual AVI, that allows you to bridge avisynth to other programs which do not accept avs scripts, or avoiding the alternative of using large lossless intermediate files . A common use is some other programs (e.g. NLE's) might not be compatible, and some of them do not accept "YV12" by the avfs method, hence the need for RGB

x264 can be compile with avs support (direct avisynth input) , or ffmpeg libx264 can accept avs directly

Quote:

*edit2*
I just made a test encode, and Media Info is showing this "Color space : YUV", what does this mean? Didn't we convert to something else?!

You started with YUV, the final format is YUV. You don't need avfs

mtamimi · 14th April 2018, 16:46

Quote:

Originally Posted by poisondeathray

Then you don't need avfs

avfs is to make a "fake" virtual AVI, that allows you to bridge avisynth to other programs which do not accept avs scripts, or avoiding the alternative of using large lossless intermediate files . A common use is some other programs (e.g. NLE's) might not be compatible, and some of them do not accept "YV12" by the avfs method, hence the need for RGB

x264 can be compile with avs support (direct avisynth input) , or ffmpeg libx264 can accept avs directly

You started with YUV, the final format is YUV. You don't need avfs

the gui that I am using does not support avs scripts, that's why I am using avfs...is there a different way to use avs scripts with apps that does not support avisynth w/o the need to convert to rgb?

Also, since I did convert to rgb, why the output is yuv?

Thnx

poisondeathray · 14th April 2018, 16:50

Quote:

Originally Posted by mtamimi

the gui that I am using does not support avs scripts, that's why I am using avfs...is there a different way to use avs scripts with apps that does not support avisynth w/o the need to convert to rgb?

Then consider using another GUI, or another method. There are many GUI's that support direct , proper YUV without that intermediate step

This is avoidable loss, and faster without avfs or extraneous conversions

Quote:

Also, since I did convert to rgb, why the output is yuv?

Because you're encoding YUV . That RGB step is unnecessary. Slower to encode and process, and you incur some quality loss converting back and forth

YUV => RGB => YUV

x264 support RGB encoding too, but it's not commonly used and compression efficiency is low. YUV 4:2:0 is the most common

mtamimi · 14th April 2018, 22:39

Quote:

Originally Posted by poisondeathray

Then consider using another GUI, or another method. There are many GUI's that support direct , proper YUV without that intermediate step

Can you suggest some? So that I can test and choose among a list of suggestions...

Thnx

poisondeathray · 15th April 2018, 00:09

Quote:

Originally Posted by mtamimi

Can you suggest some? So that I can test and choose among a list of suggestions...

Thnx

I'm not up to date on the GUI's , but some popular ones might include megui, staxrip, ripbot264, hybrid, simple x244 launcher,... probably dozens more

mtamimi · 15th April 2018, 20:53

Quote:

Originally Posted by poisondeathray

I'm not up to date on the GUI's , but some popular ones might include megui, staxrip, ripbot264, hybrid, simple x244 launcher,... probably dozens more

Dogway · 20th December 2018, 19:42

Does anyone know if this works with DaVinci Resolve or Nuke? Mounting works because I can open the mounted avi (even in avspmod with directshowsource() ) but it refuses to load in said aplications. Everything is x64 on my end. Thanks.

poisondeathray · 20th December 2018, 20:55

Quote:

Originally Posted by Dogway

Does anyone know if this works with DaVinci Resolve or Nuke? Mounting works because I can open the mounted avi (even in avspmod with directshowsource() ) but it refuses to load in said aplications. Everything is x64 on my end. Thanks.

Commandline version does , for only for certain pixel formats (at least it works in vapoursynth, it should for avs+ )

For example , Resolve expects 10bit RGB and won't accept 8bit

Dogway · 21st December 2018, 14:01

Thanks poisondeathray, worked flawlessly. In Nuke doesn't but I doubt I will ever need it for Nuke though.

rgr · 25th July 2023, 12:24

1. Is AVFS a dead project already?
2. Is it normal that after adding "convertbits(10)" the script is no longer supported by AVFS?

Myrsloik · 25th July 2023, 14:00

Quote:

Originally Posted by rgr

1. Is AVFS a dead project already?
2. Is it normal that after adding "convertbits(10)" the script is no longer supported by AVFS?

1. Nope, maintained by me. Updates binaries with avs+ support are distributed with vapoursynth portable.

2. "No longer supported". This is where you post the error message. Some formats exist as 10 bit but not all.

20th December 2018, 19:42	#247 \| Link
Dogway Registered User Join Date: Nov 2009 Posts: 2,361	Does anyone know if this works with DaVinci Resolve or Nuke? Mounting works because I can open the mounted avi (even in avspmod with directshowsource() ) but it refuses to load in said aplications. Everything is x64 on my end. Thanks. Last edited by Dogway; 20th December 2018 at 19:49.

21st December 2018, 14:01	#249 \| Link
Dogway Registered User Join Date: Nov 2009 Posts: 2,361	Thanks poisondeathray, worked flawlessly. In Nuke doesn't but I doubt I will ever need it for Nuke though.

25th July 2023, 12:24	#250 \| Link
rgr Registered User Join Date: Jun 2022 Posts: 53	1. Is AVFS a dead project already? 2. Is it normal that after adding "convertbits(10)" the script is no longer supported by AVFS?