Avisynth Help thread

[lindylex]

Martino it says that color space is rgb32.

"However how come you are not given an error when it doesn't work?" good question.

I am using AVSp and usually I get errors at the bottom. But I am not receiving any.

It should output the video and audio but I get nothing. When I hit F6 or play I am using mplayer to preview it just open then close the terminal. They work separately the logo by it's self the concating the avis video but when I do "return logo + test_clip" this is where it break so something is not right with the color or audio as you pointed out.

Lex

[martino]

OK, problem found I think. You are making the video from the picture into YV12, therefore you will have to do the same for the video clips that you are joining with ConvertToYV12(), or remove the colorspace conversion for the logo and set the pixel_type for the ImageSource to "RGB32". At the end you will still have to use what I posted earlier on since you cannot join one video which has audio and a second one which does not.

[lindylex]

Martino guess what I almost got it to work.I change the color space to RGB32 for each and added some audio to the logo.

The problem was the color space and the audio. As a test the following below works. How to I add no sounds to logo? This only work when I add audio tot he logo. I don't want any audio when the logo is being displayed.

a=avisource ("C:\Documents and Settings\Administrator\Desktop\gymnastics_2008_April_23\DCIM\101CANON\MVI_0001.AVI", false )
b=avisource ("C:\Documents and Settings\Administrator\Desktop\gymnastics_2008_April_23\DCIM\101CANON\MVI_0002.AVI", false)
c=avisource ("C:\Documents and Settings\Administrator\Desktop\gymnastics_2008_April_23\DCIM\101CANON\MVI_0003.AVI", false)


the_audio=DirectShowSource ("C:\Documents and Settings\Administrator\Desktop\Firewall.mp3")

combined= a+b+c

test_clip=AudioDub(combined, the_audio)

logo = imagesource("C:\Documents and Settings\Administrator\Desktop\video_editing\projects\gymnastics\Brand\brand_blank_ver_0.png", end=300, pixel_type = "RGB32").assumefps(test_clip)
logo = AudioDub(logo, the_audio)

return   logo + test_clip

[martino]

http://forums.animesuki.com/showpost...8&postcount=98

a=avisource ("C:\Documents and Settings\Administrator\Desktop\gymnastics_2008_April_23\DCIM\101CANON\MVI_0001.AVI", false )
b=avisource ("C:\Documents and Settings\Administrator\Desktop\gymnastics_2008_April_23\DCIM\101CANON\MVI_0002.AVI", false)
c=avisource ("C:\Documents and Settings\Administrator\Desktop\gymnastics_2008_April_23\DCIM\101CANON\MVI_0003.AVI", false)


the_audio=DirectShowSource ("C:\Documents and Settings\Administrator\Desktop\Firewall.mp3")

combined= a+b+c

test_clip=AudioDub(combined, the_audio)

logo = AudioDub(imagesource("C:\Documents and Settings\Administrator\Desktop\video_editing\projects\gymnastics\Brand\brand_blank_ver_0.png", end=300, pixel_type = "RGB32").assumefps(test_clip),Blackness(300,combined.width,combined.height,"RGB32",combined.framerate).KillVideo())

return   logo + test_clip

[lindylex]

[SOLUTION SOLVED]

If you ever try to stitch images with video us .info() to match the proper color and audio specs.

Thanks, Martino for all the help.

a=avisource ("C:\Documents and Settings\Administrator\Desktop\gymnastics_2008_April_23\DCIM\101CANON\MVI_0001.AVI", false )
b=avisource ("C:\Documents and Settings\Administrator\Desktop\gymnastics_2008_April_23\DCIM\101CANON\MVI_0002.AVI", false)
c=avisource ("C:\Documents and Settings\Administrator\Desktop\gymnastics_2008_April_23\DCIM\101CANON\MVI_0003.AVI", false)

the_audio=DirectShowSource ("C:\Documents and Settings\Administrator\Desktop\Firewall.mp3")

combined= a+b+c

test_clip=AudioDub(combined, the_audio)

logo = imagesource("C:\Documents and Settings\Administrator\Desktop\video_editing\projects\gymnastics\Brand\brand_blank_ver_0.png", end=100, pixel_type = "RGB32").assumefps(test_clip)

blank_audio=BlankClip(test_clip, audio_rate=44100, length=logo.FrameCount())

logo = AudioDub(logo, blank_audio)

return logo + test_clip

[atlantiza]

All right, I bet this is a fairly simple problem, but I'm terrible at Avisynth, so here it is.

When I try encoding my video using Avisynth, there seems like the color of the fansubs is drained. Bright colors are pale, and light colors look almost white. Nothing happens to the colors of the original video, however. I'm not completely sure if it's an Avisynth or issue or just general encoding issue. Thanks in advance.

[martino]

Post the script please... and maybe an example picture too. So the colours are drained when you encode the video through AviSynth and then watch the final encode, but when you watch the original they look fine... if I'm understanding correctly, right?

[atlantiza]

When I preview with video in Aegisub, it's quite fine.

AviSource("C:\Documents and Settings\Owner\Desktop\WOF_No Audio_Test 1.avi")
LoadPlugin("C:\Program Files\AvisynthEditor\VSFilter.dll")
TextSub("C:\Documents and Settings\Owner\Desktop\wof.ass")

As you can see, it's not much, so I dunno what the problem is really. xD

Edit: Pics for you now. Left is aegisub preview, right is after encode.

[martino]

That looks like compression of a lossy encoder (Xvid/H.264?) kicking in to me (unless something actually is wrong, I may not be right). If you don't want it to look like that you will have to increase the bitrate of the video, but it will never look the same as in Aegisub when you were previewing it, unless you will be encoding with a lossless codec.

Spoiler for before I saw the edit...:

Well, preview in Aegisub is not always the same as play back with your favourite media player. It may be that your media player is set to use the VMR renderer (MPC or ZP if you are using CCCP) which may be causing those faded colours during playback. But only you'd know that... If it is an AviSynth issue for sure, then the best step would be to remove all filters from your (autoloading) AviSynth plugins directory, since sometimes certain combinations of filters can cause pretty strange things to happen (although I'm not sure whether that is the case too when you are not using any of them) and move them to some other one (next time you'll be using them you will just have to load them manually).......

[Dark Shikari]

That looks like chroma subsampling (YV12).

[Coro]

Originally Posted by TheFluff

Don't use ApplyRange(), it has all sorts of funky limitations and is really tricky to get right.
Use Trim() and +/++ instead. Like this:

title = imagesource( "C:\Documents and Settings\Greg\My Documents\VirtualDub\grev-logo\beyblade-logo%04d.png", start = 0001, end = 0123, use_devil=true, pixel_type="rgb32").assumefps(last)

# the "last" is actually not needed here, I'm being explicit for clarity's sake
pre = last.trim(0,152)
post = last.trim(277,0)
last.trim(153,276) # overwriting the old last here for convenience

# abusing last as implicit argument here
overlay(title, mask=showalpha())

# put it together (overwriting last again)
pre + last + post

Or you could just be really lazy and steal the AFX sign overlay helper function (see the Avisynth help thread for details):

function insertsign(clip mainclip, clip overlayclip, int startframe, int endframe) {
	# make the endframe parameter optional (defaulting to where the overlay clip ends)
	endframe = default(endframe,startframe+overlayclip.framecount-1)

	# make sure the special case startframe=1 is dealt with correctly
	# (needed because trim(0,0) returns the entire clip, which is obviously not what we want)
	# note that the first frame of the clip is ZER0, _not_ one!
	begin	= (startframe == 1) ? mainclip.trim(0,-1) : mainclip.trim(0,startframe-1)
	middle	= mainclip.trim(startframe,endframe)
	end	= mainclip.trim(endframe+1,0) # BUG: setting endframe=0 doesn't do what you think it does.
	
	middleoverlay = Overlay(middle, overlayclip, mask=overlayclip.showalpha())

	# deal with the special case startframe=0 (in which case we don't have anything before the overlay)
	# note that trim(-1,0) does nothing (it returns the same as trim(0,0)...)
	final = (startframe == 0) ? middleoverlay ++ end : begin ++ middleoverlay ++ end
	return final
}

And thereby reduce your script to:

title = imagesource( "C:\Documents and Settings\Greg\My Documents\VirtualDub\grev-logo\beyblade-logo%04d.png", start = 0001, end = 0123, use_devil=true, pixel_type="rgb32").assumefps(last)
insertsign(last, title, 153, 276)

Hi, I keep getting this error every time I try and open my script in VirtualDub:

Script error: imagesource does not have a named argument "pixel_type"

I'm trying out the code you gave Koroku, by the way.

My script also includes MPEG2source for my D2V file, Crop, LanczosResize, and Telecide & Decimate.

[TheFluff]

Originally Posted by Coro

Hi, I keep getting this error every time I try and open my script in VirtualDub:

Script error: imagesource does not have a named argument "pixel_type"

I'm trying out the code you gave Koroku, by the way.

My script also includes MPEG2source for my D2V file, Crop, LanczosResize, and Telecide & Decimate.

What is your Avisynth version?

[Coro]

Originally Posted by TheFluff

What is your Avisynth version?

2.5, from the AMVapp and AdvancedAVS Pack.

[TheFluff]

2.5.what?

(also, if you don't need the alphamask you can skip the pixel_type argument and use converttoColorspaceOfYourChoice() later instead)

[Coro]

Um, I believe it's 2.56beta1.

[TheFluff]

Originally Posted by Coro

Um, I believe it's 2.56beta1.

That's your problem then, the pixel_type argument was added in 2.56. Update to 2.56a (the final version) or even better 2.57.

[LacusClyneX]

I keep getting this error: "Avisynth open failure: AVIsource autodetect: couldn't open file 'C:\ccs\ep57.avi' Error code: 2 (C:\ccs\blah.avs.avs, line 2)" whenever I try to put in the avisynth script in the virtualdub. my verison of avisynth is 2.5.7 does anyone know whats wrong?

[Mentar]

Maybe you're using Vista and have trouble due to file endings being removed from filenames?

Your error message seems to indicate that your AVS is already misnamed (blah.avs.avs). If the same might be true for the avi (C:\ccs\ep57.avi.avi), this would explain why your script wouldn't find it, leading to the error you described.

Let vista display all file endings properly, then you can avoid errors like these.

[pichu]

Originally Posted by Mentar

Let vista display all file endings properly, then you can avoid errors like these.

lol Vista is dumb... Even when you have the extensions displayed in Explorer and when you select a filename (click then F2, or click-hold-click on the filename), Vista only selects the filename (select: filename) instead of everything (select: filename.ext) unlike Windows XP and lower. :/

------ Aside from this, people really should use my overlaying script to overlay mainly signs...

http://pichu.org/overlays

(don't worry, no information you input in the forms is sent to the server; I was going to write a PHP script for this, but I figured that since JavaScript is equally as powerful as PHP for this kind of job, I've decided to code it as a static index.html. )

[[[ AND, I DO wish that AVISynth supports RegEx, so that I don't need to do all this stuff hehe ]]]

This is particularly useful for signs typesetters, who have to do a lot of signs at a time--such as myself.

Format:
filename_12345.avi
filename_12345v2.avi
filename_12345-23456.png
filename_12345-23456.avi
12345.avi
12345-23456.png
(note that last frame number is optional for avi)

Both IE and FireFox can do drag-and-drop after some procedures. I think I covered most of the basics here based on my TS work. Although the script allows video splices, I have not really implemented them into index.html.

[martino]

Originally Posted by pichus

------ Aside from this, people really should use my overlaying script to overlay mainly signs...

Mind telling us why in that case? Something wrong with TheFluff's script that we don't know about?