iuvcr best capture prog !?!?! [Archive]

komaklar

5th February 2002, 18:26

hiho!

month ago i read a thread about iuvcr (iulab) and i was surprised about its quality!

virtual dub + my original anubis driver failed totally!
i wasn't even able to capture 320*240 huffyuv....
but iulab and its special wdm-capture driver (compatible with winxp) works just perfect!
only disadvantage, its not free and has a limt of days, so you have to install it again.

did nobody else heard about this prog, this might be interesting for everyone who has problems with vitual dub!

cya
komaklar

http://www.iulab.com
:p

Milos

8th February 2002, 18:00

I agree with you, iuVCR is by far the best capturing prog I've used so far, with my Asus V8200 deluxe.

CPU usage is so low, I can even crop video in real-time.

This comes (I think) from a very good WDM interface; which is obviously better than vfw.

All you need is a good WDM driver for your video card ...

phrentec

9th February 2002, 03:13

iuVCR is good but for my slow p3 i get too many dropped frames. I like the way the program steals audio resources from other programs. The only thing about it is that i cant get the audio and video to be in synch no matter how many different options i mess around with. Right now for my computer i prefer avi_io_trial for video capture with DivX4.12 as it has given me almost perfect captures, it also comes with a scheduler.

Arepiv

13th February 2002, 17:47

I am using iuVCR as well but I am quite confused with the frame rate I get. It's programmed for 25 fps but the result is an average of 24.7 fps. What confuses me is that there are 0 frame drops ! How can this be ?

Any idea on this ?

Arepiv

komaklar

14th February 2002, 19:38

@ phrentec
i have the same prob when leaving the audio-stream in original pcm! encoding to mp3 solves the sync problems... (dont ask me why)

henriQ

15th February 2002, 15:55

Yes. FLYCAP it is. And lighter on demands over
your system. And: it is Freeware.

cjaar

12th December 2002, 09:11

@ Milos

did the corp filter come with iuvcr??? or u installed it saperately... can i know where can i get the same

TA
cj

tuco

12th December 2002, 13:50

I still prefer vdub with a/v sync mod with both vfw and wdm drivers (you need the wrapper for wdm.) iuvcr was too buggy on my system and there are better programs out there that can capture just as well or better for free. Virtualvcr is another good one with wdm drivers.

DaveQB

14th January 2003, 07:41

VirtulVCR performs slightly better here then iuVCR

i love iuVCR but frames are like 24.72 etc
but Virtual VCR gets it up to 24.99xxxx

but still with both proggies i get the video racing ahead of the aduio to wheres its over a second ahead after bout 45 mins

:(

Video: mjpeg @ 19
Audio: PCM @ 44100hz, 16, stereo

i'll try komaklar idea to compress the Audio, see what happens

(if it works, that sux ya cant cap in uncompressed)

ohliuv

14th January 2003, 09:08

VirtualDub Sync works best for me. My system is PIII/1GHz, NVIDIA graphic, TerraTVValue, capture in half PAL to DivX5.02

DaveQB

14th January 2003, 09:10

yeah i never had a sync problem with that

problem now is that i have a CX23881 based card and want to cap @ larger then 320x240 res :(

i found a solution for everyone

http://www.vcdhelp.com/forum/viewtopic.php?p=425910#425910

anyone know what VD does different to other cap programs to keep sync so well ???

Gazorgan

14th January 2003, 19:51

I've never had sync problems with IUVCR. I usually cap in MJPEG at 90% or 95%(Morgan MJPEG is a fine product, worth the $$$), and PCM audio. 1 hour cap and it's synced at the end, zero dropped frames at 640x480. Athlon 2000 and a 100 GB drive with 8 MB cache helps.

I don't like it's scheduler, it's not friendly to setting up weekly timed recordings. It does tend to drop frames the first 10 seconds on timed recording, but so what, I always start 1 minute early. It doesn't like to pause and resume either. PowerVCR sucks because it's MPEG only, but it's really nice about timed captures.

DaveQB

14th January 2003, 20:34

hmmm changing the frame rate through VD doesnt always work :(

i capped a file from my Camcorder (8mm tapes) and ran it through (intially saying Video was @ 25.000 and Audio @ 24.826) but even after syncing them the Video was still a bit ahead after half way through.

so tried setting the frame rate to 24.800 and that was too much compensation,
so trying now @ 24.820

but why this is happening i have no idea,
yet to try Audio compression
i never had this trouble before when using a BT878 and VD and capping @ 352x288

this sux!

one think though, now using Virtual VCR, i can cap and do many other things with a single frame drop

hahhaha, but now i need frames to be droped :D
(to keep sync)

NeVeRLiFt

14th January 2003, 22:16

I like iuVCR and use it alot, but I also use AVI_IO and recommend people to try it out to.
;)

DaveQB

14th January 2003, 23:11

hmm i have tried AVI_IO but it either crashes on me @ low Res and hi res it wont capture :confused:

i am very happy with Virtual VCR anyway :)

fasttimes

15th January 2003, 00:06

The best capture apps are VirtualVCR (WDM) or VirtualDub Mod (VfW), with the universal BTWinCap drivers. These are the only capture apps that maintain AV sync by resampeling the audio, not duping/dropping frames (yuck!) And the BTWinCap universal drivers are much more compatible than the iulabs universal drivers.

DaveQB

15th January 2003, 00:10

Originally posted by fasttimes
The best capture apps are VirtualVCR (WDM) or VirtualDub Mod (VfW), with the universal BTWinCap drivers. These are the only capture apps that maintain AV sync by resampeling the audio, not duping/dropping frames (yuck!) And the BTWinCap universal drivers are much more compatible than the iulabs universal drivers.

cool,
i still got sync problems with Virtual VCR :(

but i used a copy i had on my HDD (ver2.3 build 2301 or something )

so downloaded the lastest and will try that
i notice alot of sync fixes in th change log ;)

fasttimes

15th January 2003, 00:23

Originally posted by DaveQB
cool,
i still got sync problems with Virtual VCR :(
but i used a copy i had on my HDD (ver2.3 build 2301 or something )
I don't know what to tell you poor guys. Some rare people, continue to have the sync problems. My fisrt instinct would be that they have VVCR configured incorrectly. But, I'm sure this is *not* the case, for many having problems.

DaveQB

15th January 2003, 00:32

Originally posted by fasttimes
I don't know what to tell you poor guys. Some rare people, continue to have the sync problems. My fisrt instinct would be that they have VVCR configured incorrectly. But, I'm sure this is *not* the case, for many having problems.

you dont have sync problems ???

can you post yuor exact settings here for us ??

so we can compare
and maybe a cable configuration too

much appreciated
:D

fasttimes

15th January 2003, 01:13

Originally posted by DaveQB
you dont have sync problems ???

Not a one :D

I just upgraded to the latest version. Here are my settings:

Settings - AV Sync Tab - Check *only* "Resample Audio" and select "Resample Audio Dynamically".

DaveQB

15th January 2003, 01:17

thanx,
i'll try it

DaveQB

15th January 2003, 01:30

cool
a 9 min capture with your settings and its the best its been

VD says audio is @ 24.996 while Vid still @ 25.000

i'll keep trying .....

NeVeRLiFt

15th January 2003, 02:28

Originally posted by fasttimes
The best capture apps are VirtualVCR (WDM) or VirtualDub Mod (VfW), with the universal BTWinCap drivers. These are the only capture apps that maintain AV sync by resampeling the audio, not duping/dropping frames (yuck!) And the BTWinCap universal drivers are much more compatible than the iulabs universal drivers.

I have never had audio sync with AVI_IO ;) and it lets you choose how to add a key frame if it detects a frame drop.

Still with the right settings iuVCr works well for me.

Besides these I use MMC7.7 (soon MMC8.1)

fasttimes

15th January 2003, 02:57

Originally posted by DaveQB
cool
a 9 min capture with your settings and its the best its been
VD says audio is @ 24.996 while Vid still @ 25.000
i'll keep trying .....

Try a longer capture, like an hour or even two. The resampling does not really swing into action for a little bit.

Also, don't be fooled by the VDub stats. IIRK, if the audio is even one sample shorter than the video, it will show 24.999FPS, but it could really be 25.000FPS minus one audio sample in the entire AVI length! One way to really know, it to rip the audio to a WAV file, then load it into a WAV editor to check the length.

^^-+I4004+-^^

15th January 2003, 03:19

avi_io is pain in the but with silly management of free disk space.....
that's big -
only + i can think about is "pause" button if i wan't to capture many smaller clips into one avi.......

VDSync is still god on vfw platform.......(yeap,win98 captures for me....wdm gets async....i think this is some internal wdm problem,as i can't attribute it to hardware or drivers.......)

[fasttimes,some rough days for denoising today?huhm.....tough!
hehe
there are some new avs denoisers though.......
i have seen your screenshots,but i have work on sync-ing some audio to some video for "Midnight Cowboy" movie.(what a MASTERPIECE.... nothing is too hard job for that movie!)..so i don't have time
yet.....we'll see after that "project" finishes.........]

fasttimes

15th January 2003, 03:39

Originally posted by ^^-+I4004+-^^
avi_io is pain in the but with silly management of free disk space.....
that's big -
only + i can think about is "pause" button if i wan't to capture many smaller clips into one avi.......

VDSync is still god on vfw platform.......(yeap,win98 captures for me....wdm gets async....i think this is some internal wdm problem,as i can't attribute it to hardware or drivers.......)
Don't feel too bad. ;) I'm still having damn frame drop problems in WinXP/WinME, that I have not been able to track down for months. They seem to be on a very regular schedual (4-5, exactly every hour.) I'm getting ready to chuck my whole PC and start over. :angry: So, we are all having problem, of one kind, or the other. :(

so i don't have time
yet.....we'll see after that "project" finishes.........]OK! :) Looking forward to your input. Actually, I'm looking for *any* input from all of you! ;)

DaveQB

15th January 2003, 04:05

Originally posted by fasttimes
Try a longer capture, like an hour or even two. The resampling does not really swing into action for a little bit.

Also, don't be fooled by the VDub stats. IIRK, if the audio is even one sample shorter than the video, it will show 24.999FPS, but it could really be 25.000FPS minus one audio sample in the entire AVI length! One way to really know, it to rip the audio to a WAV file, then load it into a WAV editor to check the length.

unfortunately a longer cap really got out of sync :(

there doesnt seem to be a solution for me to capture sync, have to run it through VD a few times changing Frame Rates and even then the "Change so Audio and Video durations match (fps)" doesnt work exactly now, i have to manual pick a frame rate and then alter that according to the out comes, can take a 3-4 goes if i dont pick it well :(

theres one last thing i havent tried that someone suggested and that is capturing Audio in mp3

off to try that now .......

perhaps a new driver release for my card might solve this in the future

oh and also, this might be interesting.
i captured in VD @ 352x288
and the VT% was counting by -3ms for every second, or there abouts.

it ended up @ around -200ms in one minute

this is not good, huh ?? :D

oh and one more thing, theres no problem changing the frame rate after the encoding and filter stage ??
a smaller file wil be faster to copy back and forth between HDD's

thanx guys!

cjv

15th January 2003, 05:05

DaveQB:

I know your cap card is CX2388x based, but which one is it?
What sound card do you have?
Do you cap sound direct to line-in, or through passthrough of cap card?

cjv

DaveQB

15th January 2003, 05:22

Prolink PixelView PlayTV HD (http://www.prolink.com.tw/english/products/multimedia/playtv%20hd.htm)

have an EPoX 8RDA+ with the nForce2 chipset,
so i use the onboard APU (http://www.nvidia.com/view.asp?IO=apu)

uses less CPU usage then an Audigy, and the quality is almost as good (5.1 and all that)

i did a cap using the Line IN but it was out of sync so went back to plugging into the card (which then plugs in the AUX headers on the MoBo)

but now trying the Line IN with fasttimes recommended settings (unticked offset thingy option)

so far so good, that stats looks like its more in sync, up to 44 mins so will stop in a sec and see .....

Edit: typo

DaveQB

15th January 2003, 05:53

ok, we have success!! :D

the file was sync, even after 50 mins, although some parts at the end didnt seem quite exact, but i htink thats a case of looking at this for too long! :D

VD said Video and Audio was both 25.000 (thats a first) and i checked in Audio > Conversion and it had current as 44100hz
woohoo!

just tried to encode a little bit of a file i fixed the frame rate with to get it in sync, but couldnt encode the audio (its 43785hz)

not sure how it will go with a Co-Ax capture though.... bout to try that next

thanx to everyones input, we seem to have hit a winner. (dont wanna be too confident too early :))

Edit: typo

valnar

15th January 2003, 17:35

Let me second the recommendation for VirtualVCR over iuVCR. I was an AVI_IO user in my VfW/Win98 days so maintaining sync is very important to me. iuVCR does not do that well. With VirtualVCR, you want to check resample audio (NO Master stream options) and it will keep perfect sync and perfect video frame rate. This is important if you want to post process and compress it to any variation of MPEG.

As another person pointed out, iuVCR adjusts the video frame rate which causes it to fall too out of spec with the MPEG standard, and some encoders will refuse to work with the file.

And as always, use HuffyUV compression when possible, or MPJEG if you're PC can't handle it to get the best uncompressed (or least compressed) file to work with before encoding to MPEG or DivX.

Robert

DaveQB

15th January 2003, 22:48

yeah its stil not perfect here,

i find if i dont multi-task (ie browse the Web, check mail etc) then i have less sync problems, but even the files that are sync, VD reports a slight discrepency in frame rate of Audio and Video

capturing to DivX like i used to with my AverMediaTV card and to only a single disk set up cant be doen without sync problems, no matter if i multi-task or let it be.

well at least i can fix the files through VD's change Frame Rate

i found i have to minus .006 frames/second then what VD suggests will get them in sync and manually use that figure :rolleyes:

birdy

17th January 2003, 12:53

I always used Virtualdub and iuvcr for video capture and didn't know about virtualVCR. After reading this topic I downloaded it and gave it a try. I am really impressed! It's a really great software and the great thing is that it let me use my filters when capturing.

Capturing at 768x576 to XVID and deinterlacing on the fly I did a capture test file of exactly 2hours.
There was no audio sysnc problem at all and not even one droped frame. I guess I will be using this software from now!

Thanx to ones who sugested the use of it.

DaveQB

17th January 2003, 12:59

Originally posted by birdy
I always used Virtualdub and iuvcr for video capture and didn't know about virtualVCR. After reading this topic I downloaded it and gave it a try. I am really impressed! It's a really great software and the great thing is that it let me use my filters when capturing.

Capturing at 768x576 to XVID and deinterlacing on the fly I did a capture test file of exactly 2hours.
There was no audio sysnc problem at all and not even one droped frame. I guess I will be using this software from now!

Thanx to ones who sugested the use of it.

really ???

i just made this (http://www.vcdhelp.com/forum/viewtopic.php?p=428830#428830) post as you made this one,

i have noticed playoing back Xvid uses alot less CPU usage, i will give it a try.

back on topic, i did a test tonight,
captured in mjpeg @ 12 and uncompressed audio,
16mins of pay TV

iuVCR got out of sync @ 13 mins (not much though, could probably be fixed in VD)

Virtual VCR never lost sync at all :D

valnar

17th January 2003, 13:19

There are only three capture programs that I know of that maintain sync. All based on Microsoft's SDK with no tweaking cause the sync problems because of PCI drift between A/V. It takes someone to think "outside the box" to figure out his/her own solution to make them stay in sync. With AVI_IO, the developer inserted blank frames when the audio drifted. With VirtualVCR, the developer adjusts the audio ever-so-slightly (no one can hear it) to stay with the video. I helped him beta test that aspect of it awhile ago.

Showshifter does it too, but I am unsure how that company maintains their sync. However, I remember a thread on the Showshifter forum where the developer mentioned it took a couple late nights with some 6-packs of Coke to figure it out! It would have to be one of the processes mentioned above - either adjust video or audio to stay with the other.
[All this is from memory. Please correct me if I'm wrong anywhere.]

IuVCR and VirtualDub work for some people, but not all.

I've been hunting for good capture programs for eons that I think I've tried them all. AVI_IO for Win9x. VirtualVCR for Win2K/XP with WDM drivers. Nothing else is needed!

Robert

Karl Beem

17th January 2003, 17:55

Originally posted by ^^-+I4004+-^^
avi_io is pain in the but with silly management of free disk space.....

Yeah, but Virtualdub understands the file io. Edit with Vdub and then spool it out to another file. Compress as necessary.

birdy

18th January 2003, 00:44

@DaveQB
Is your problem fixed capturing at 768X576 with no frame drop and sync problem?

DaveQB

18th January 2003, 03:59

i thought i had it, captured 2 test runs for 15 mins and worked, then captured a 1hr show over night and out of sync, :(
no dropped frames though

fasttimes

18th January 2003, 17:24

Originally posted by DaveQB
i thought i had it, captured 2 test runs for 15 mins and worked, then captured a 1hr show over night and out of sync, :(
no dropped frames though
Only one thing I can think of: could your video and audio be way off, beyond the limited range that VVCR will resample? VVCR won't correct real bad A/V synch, because it would risk making the audio resampling audible. I would try using another sould card, and I would also try using different sampling rates, and driver versions.

DaveQB

19th January 2003, 00:10

nah its not too bad,
just off that little bit that becomes annouying you know ?

a damn pain it is.

just recorded another 1 hour show last night, without Mum changing the channel on me, so i want to watch this one

i wil try to save it through VD fram rate change

DaveQB

19th January 2003, 00:22

well i cut off the first 3 mins, coz it always seems to take a few minutes to stabilize; the Delta value during the first few minutes is up and down.

then noticed the rest of it was out of sync a set vale not in a linear form; Audio was just a little in front of the video the whole way. VD said they were both @ 25.000 FPS

so delayed audio 100ms and its perfect.
its just a pain in the arse to have to spend 20mins to get it in sync and i was lucky to pick the delay value first guess.

i have got it capturing in huffyuv without sync issues, which is more important (for those important conversions) but would like it to be my VCR too for shows and movies.

ahh well!

birdy

19th January 2003, 15:03

Last 2 nights I have been exchanging e-mails with IUvcr's author and he finaly sent me a test version were few bugs fixed now. I think he will release that version soon if not already done.

@DaveQB,
I really can't understand why you get sync problems! maybe you should try with IUvcr using this settings and see if it gets fixed.

In option tab of IUvcr: enable audio stream offset and set the value to "0"
enable short audio samples.
Set your master stream to audio.

by the way, what audio and capture card do you have?

DaveQB

19th January 2003, 19:58

oh, i must add that back to my sig (seeingsn ot posting in DVD forum, i wont get in trouble for it)

nForce2 chipset here, so susing the SoundStorm onboard sound, lower CPU usage then an audigy, and the quality is very close to an audigy.

i have tried the line IN in my MoBo and also using the capture card (it plugs into the MoBo AUX port. i first thought the line IN offered better sync, but then found it was some other settings i changed and therefore theres no diff between the two (both stereo, both as good/bad with sync)

i'll try iuVCR again then with your settings

what bout VVCR with off audio stream offsets set to 0ms there ???

thanx Birdy

fasttimes

19th January 2003, 23:01

Originally posted by DaveQB
what bout VVCR with off audio stream offsets set to 0ms there ???If your sync seems to be offset be the same amount, throughout the movie, that would correct the problem.

NeVeRLiFt

20th January 2003, 01:51

Originally posted by birdy
Last 2 nights I have been exchanging e-mails with IUvcr's author and he finaly sent me a test version were few bugs fixed now. I think he will release that version soon if not already done.

@DaveQB,
I really can't understand why you get sync problems! maybe you should try with IUvcr using this settings and see if it gets fixed.

In option tab of IUvcr: enable audio stream offset and set the value to "0"
enable short audio samples.
Set your master stream to audio.

by the way, what audio and capture card do you have?

enable short audio samples.

Whats this, and what does it do?

Edit:
:D :p whos your daddy? and what does he do? :p :D

DaveQB

20th January 2003, 04:23

ok, checked out Xvid more thoroughly and found i had a version from May 2002

installed the latest (Dec 24th 2002)
and so far seems alot better (a heap more options too, that i dont know bout :D)

only ran a few 1min tests but seems good also playback uses alot less CPU usage, although jumping ahead in the video is a bit of a bother as it doesnt catch up and i got to jump around a bit to get a picture.

i hope this is my solution,

thanx :)

cjaar

21st January 2003, 08:30

@all...

I hv pixelview play tv pro card, the s/w bundled with this works fine(only TV view and cap in avi formate). I isnatlled iuvcr for capturing, but i hv some problem in tuning some channels....
Like if i fine tune a channel to get less video and audio distortion,
i am unable to do...in the sence, if video is ok, sound is noisy and vis-ever-sa...
Has any noticed this or hving the problem with other cards also.
I did try the latest 5.3.5 generic wdm drivers but my tv viewing isnt possible with generic drvs.
tried Dscaler, still the sme problem, video/audio distortion in some channels.

any solutions/suggestions..

Thanks
cj