Mailing List Archive: ivtv: devel

ivtv, nuv files and DVDs

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dfleming at swings

Jan 21, 2005, 9:25 AM

Post #1 of 3 (3121 views)
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ivtv, nuv files and DVDs

I've been obsessively struggling for some time trying to create a DVD
with some of the shows I've recorded with MythTV. My system uses a
PVR-250 and it seemed that regardless of how I used mencoder, avidemux
etc. I could not get an mpeg that kept the audio in sync; it would
always progressively drift out of sync. Anyhow, I found a solution:
VideoReDo.

http://www.drdsystems.com/VideoReDo/index.htm

VideoReDo has tool called "QuickStream Fix". I can run this tool
directly on the nuv file and it outputs a remuxed and corrected mpeg
that I can burn to DVD without a problem. It's also quite fast. An
hour-long recording is remuxed in roughly 2 minutes on my Athlon XP
2400. If anyone is aware of a Linux equivalent I would love to know
about it.

---Dan

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ckennedy at kmos

Jan 21, 2005, 12:21 PM

Post #2 of 3 (2960 views)
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Re: ivtv, nuv files and DVDs [In reply to]

I don't think there's an equivalent in Linux for VideoReDo, although I'm
using it here actually for allowing trim/view for people using Windows
and needing an easy solution, works great and rather cheap price for what
it does. I dug pretty deep and found nothing that was as easy to use and
quick at doing it, plus it can reduce the filesize by 1/3 of what it was
and retain the same quality (I think there's alot of filler in the mpeg2
files from the iTVC1X chips it seems or something like that), so for 25
dollars or whatever it was can't really beat that.

Thanks,
Chris

On Fri, Jan 21, 2005 at 08:25:20AM -0800, dfleming [at] swings wrote:
> I've been obsessively struggling for some time trying to create a DVD
> with some of the shows I've recorded with MythTV. My system uses a
> PVR-250 and it seemed that regardless of how I used mencoder, avidemux
> etc. I could not get an mpeg that kept the audio in sync; it would
> always progressively drift out of sync. Anyhow, I found a solution:
> VideoReDo.
>
> http://www.drdsystems.com/VideoReDo/index.htm
>
> VideoReDo has tool called "QuickStream Fix". I can run this tool
> directly on the nuv file and it outputs a remuxed and corrected mpeg
> that I can burn to DVD without a problem. It's also quite fast. An
> hour-long recording is remuxed in roughly 2 minutes on my Athlon XP
> 2400. If anyone is aware of a Linux equivalent I would love to know
> about it.
>
> ---Dan
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
> Tool for open source databases. Create drag-&-drop reports. Save time
> by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
> Download a FREE copy at http://www.intelliview.com/go/osdn_nl
> _______________________________________________
> ivtv-devel mailing list
> ivtv-devel [at] lists
> https://lists.sourceforge.net/lists/listinfo/ivtv-devel

--
---
Chris Kennedy / ckennedy [at] kmos
Engineer KMOS-TV/KTBG-FM
Broadcasting Services Department
Central Missouri State University

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Jim.Sager at turner

Jan 21, 2005, 1:18 PM

Post #3 of 3 (2956 views)
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RE: ivtv, nuv files and DVDs [In reply to]

There is a thread that speaks to the audio sampling frequencies having an
effect on a/v sync:

Ben Willers [Re: [ivtv-devel] Recommended settings? (based on testing!)]:

"there is just something i ran into yesterday.
44.1 kHz and 32 kHz audio seems to be broken. if i switch the card to one of
those samplingfrequencies it changes the pitch and the speed of the audio.
even in passthrough mode.
oh, mpeg1 layer2 audio seems to be broken as well.

apart from that, if you want to create dvds you better have 48kHz audio."

I had problems for the longest time using avidemux to cut commercials out
of my recordings and basically gave up at that point. I'm pretty sure that
I had my audio frequency setting at 44.1kHz. I had to do any upgrade of my
system. At that time I went back and changed the settings that I was using
for recording. I changed the audio frequency to 48kHz and now I am able to
use avidemux (2.0.34-test2) to cut commercials out of the stream and
maintain a/v sync. So, based on my experience, I can say that it seems
like the audio frequency setting may be the culprit. Try setting it to
48kHz and see if this fixes the problem.

My recording profile in MythTV (I am in NTSC land):

Size: 720x480
Stream Type: DVD-Special 2
Aspect Ratio: 4:3
Bitrate: 3000
Max. Bitrate: 9200
Audio
Codec: MPEG-2 Hardware Encoder
Sampling Rate: 48000
Type: Layer II
Bitrate: 384 kbps
Volume: 90%

Hope this helps.

--Jim

-----Original Message-----
From: ivtv-devel-admin [at] lists
[mailto:ivtv-devel-admin [at] lists]On Behalf Of
dfleming [at] swings
Sent: Friday, January 21, 2005 11:25 AM
To: mythtv-users [at] mythtv; ivtv-devel [at] lists
Subject: [ivtv-devel] ivtv, nuv files and DVDs

I've been obsessively struggling for some time trying to create a DVD
with some of the shows I've recorded with MythTV. My system uses a
PVR-250 and it seemed that regardless of how I used mencoder, avidemux
etc. I could not get an mpeg that kept the audio in sync; it would
always progressively drift out of sync. Anyhow, I found a solution:
VideoReDo.

http://www.drdsystems.com/VideoReDo/index.htm

VideoReDo has tool called "QuickStream Fix". I can run this tool
directly on the nuv file and it outputs a remuxed and corrected mpeg
that I can burn to DVD without a problem. It's also quite fast. An
hour-long recording is remuxed in roughly 2 minutes on my Athlon XP
2400. If anyone is aware of a Linux equivalent I would love to know
about it.

---Dan

-------------------------------------------------------
This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
Tool for open source databases. Create drag-&-drop reports. Save time
by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
Download a FREE copy at http://www.intelliview.com/go/osdn_nl
_______________________________________________
ivtv-devel mailing list
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https://lists.sourceforge.net/lists/listinfo/ivtv-devel

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Tool for open source databases. Create drag-&-drop reports. Save time
by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
Download a FREE copy at http://www.intelliview.com/go/osdn_nl
_______________________________________________
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