On Wed, Jan 21, 2004 at 02:00:22PM +0100, Thomas B?rkel wrote:
> A lower -q (2 or 3) gets me higher file sizes, so shouldn't it also be
> potentially better quality?
Provided you don't hit your maximum bit-rate limit (-b 4000) that you've
chosen, yes.
> I want to encode about 43 minutes of vide
Is there any way to concatenate plural sets of mp2/m2v files for
multiplexing together into a single stream.
The m2v files are created in mpeg format (-f 8) to mpeg2enc.
I tried:
cat f1.mp2 f2.mp2 f3.mp2 > all.mp2
cat f1.m2v f2.m2v f3.m2v > all.m2v
mplex -f 8 -r 0 -V -b 230 -S 0 -o all.%0d.mpeg
On Thu, Jan 22, 2004 at 05:30:55PM -0500, [EMAIL PROTECTED] wrote:
>
> But it would be nice to have a spatial lowpass filter in the
> toolbox also to reduce noise that way.
What about yuvmedianfilter? Is it a spatial lowpass filter?
---
The
>
> The problem is, my DVD player cuts off 10 or so pixels from
> each side, and 15 or so from the top and bottom. When I try
> to play the VCD it renders some of the subtitles off the
> screen -- not to mention some of the video.
Are you certain it's the DVD player? It sounds like you are
witn
On Tue, Feb 10, 2004 at 08:03:23AM +0100, Thomas B?rkel wrote:
> HI!
>
> Steven M. Schultz wrote:
>
> > What type of system (cpu) is being used? SSE, MMX,
> > MMX-Extended, ???
>
> P3-866. Don't know exactly, what type of extra instructions this
> one has.
P3 class has MMX, maybe MMX-extended
On Tue, Feb 10, 2004 at 10:44:34AM -0500, Paul Miller wrote:
> On Mon, Feb 09, 2004 at 04:56:14PM -0500, [EMAIL PROTECTED] wrote:
> > y4mscaler -I active=704x480+12+0 -I matte=696x472+16+0 -S
> > option=sinc8lan -O preset=DVD -O size=704x480 -O
> > Xscale=15:16 -O Yscale=14:15
>
> Is there a way t
On Tue, Feb 24, 2004 at 08:49:20PM -0800, Douglas Fraser wrote:
> Setting up a system with two dc10+ cards, one for capture and the other for
> playback. I was hoping someone could give me a tip on how to configure
> lavrec & lavplay to access the different cards.
For lavrec, you set LAV_VIDEO_DE
On Wed, Feb 25, 2004 at 04:59:28PM +0100, Ronald Bultje wrote:
> Hi Richard,
>
> On Wed, 25 Feb 2004, Richard Ellis wrote:
> > You are trying to recreate TiVo pause live TV functionality,
> > right? If so, this isn't going to quite work like you want.
> > Until
On Wed, Feb 25, 2004 at 11:28:52AM -0800, Mike Smith wrote:
> **ERROR: [mplex] Need to split output but there
> appears to be no %d in the filename pattern output.mpg
>
> ...
>
> What's going on here? How can I get mplex to create
> a larger output file?
What version of the mjpegtools do you ha
On Tue, Mar 02, 2004 at 08:23:07AM +0100, Alberto Starosta wrote:
>
> Hi All.
> I have DC10plus capture card. I have a idea to make copy all of my
> VHS's to DVD
> ...
> I was happy than immediately tryed to make full copy of my VHS, but
> unfortunately wasn't possibile. Many, many errors (this ni
On Tue, Mar 02, 2004 at 10:56:47AM -0800, Steven M. Schultz wrote:
>
> > with a Hauppauge card (now I have DC10+). That is too labor
> > intensive.
>
> No labor at all - the computer's doing all the hard work :-)
>
> I presume you're thinking of either the Hauppauge 250 or the 350
> ...
> I do
On Tue, Mar 02, 2004 at 10:55:49PM -0600, George Kola wrote:
> Hi,
> I would like to try Distributed encoding of DV to MPEG1,2 &4
> using some 10+ machines. I realize that I need some utility to
> split the DV, encode the pieces and finally merge them together.
> Does anybody know of any utilites
On Wed, Mar 17, 2004 at 09:59:59AM +0100, Maarten de Boer wrote:
> Hello,
>
> I created a DVD from some miniDV recordings, and I tested it on 3
> hardware players. 2 work perfectly, but the third one, a SAMSUNG M105,
> only shows the menu I created, but refuses to play any titles. (can't
> give th
On Sun, Mar 14, 2004 at 10:40:41PM +0100, Rickard Westman wrote:
> Hi,
>
> I have recently started to transfer some TV recordings onto DVD:s, using
> Fredrik Hubinette's mkdvd script. With high bitrates (~ 5.5Mbit/s) the
> quality was quite good, but when I tried a lower bitrate (~3.5 Mbit/s),
On Wed, Mar 17, 2004 at 03:10:18PM +0100, Maarten de Boer wrote:
> Hello Richard,
>
> Thanks for your reply.
>
> > You did not say which version of mpeg2enc you are running. Is it the
>
> Yes, sorry, I am not in front of my home machine, where I did all the
> encoding... I use a fairly recent (
On Thu, Mar 18, 2004 at 10:11:38AM +0100, Maarten de Boer wrote:
> If I understand you correctly, you are saying that using B frames will
> result in less player compatibility? And Richard suggests dual prima
> motion estimation is causing less player compatibility. So I guess it is
> best (compati
On Thu, Mar 18, 2004 at 01:51:10PM +0100, Maarten de Boer wrote:
> > Since you found a hardware player that seems allergic to -R 0
> > streams, why not test it for us. ...
>
> That is actually a very good idea. While I am at it, I might create
> some more test mpegs, and create a reference dvd ima
On Thu, Mar 18, 2004 at 01:02:34PM -0800, Florin Andrei wrote:
> That's very strange. I thought MP2 should work with the vast
> majority of DVD players (no matter what the standards say). It
> never happened to me, anyway. But now i use AC3 and the point
> became moot.
The DVD specs, or at least t
On Sat, Apr 03, 2004 at 11:06:50AM -0800, Steven M. Schultz wrote:
> What programs exist to edit MPEG program stream files? I know
> about GOPchop but reading the documentation I see that GOPchop
> allocates about 10% of the filesize as memory buffers - that
> doesn't work well at all with large f
On Fri, Apr 02, 2004 at 08:06:35PM +0100, Anne Wilson wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> I have on loan, for testing, a Pinnacle DC10+ card. My hope is to
> convert Hi8 tape into vcd or dvd.
>
> Distro: Mandrake 9.2
> Hardware: Asus A7v8X-X
> Soundard: on-board AC97
On Sun, Apr 04, 2004 at 10:17:21AM -0700, Steven M. Schultz wrote:
>
> On Sat, 3 Apr 2004, Richard Ellis wrote:
>
> > is sparse (actually, sparse is a bit too generous) and that the mode
> > of operation for mpeg cutting is slightly non-intuitive. However, on
>
> Ye
On Fri, Jun 04, 2004 at 11:10:59PM +0200, Alfonso wrote:
>
> >Thanks for the tip, but I found Steve's formula in my inbox and used it to
> >generate 6 seconds of silence to go with the 150 frames of 720X576 video
> >of four X-Wings flying in formation against a starfield and used mplex to
> >cr
On Sun, Apr 04, 2004 at 01:04:22PM +0100, Anne Wilson wrote:
>
> > > I disabled the AC97 and installed the SBLive! 5.1. I could
> > > capture the video now, without problem, though I still have no
> > > sound. Does the sound cable go straight from camcorder to
> > > capture card, or does it have
On Thu, Apr 08, 2004 at 02:00:26PM -0300, Marcelo Duschkin wrote:
> I've just upgraded from Mandrake 9.1 to 9.2, and now in LVS lavplay
> returns this error:
> Error initializing audio: Audio task died.
> Reason: Error mapping audio buffer
>
> What's wrong?
Sounds like in the upgrade you changed
On Tue, Apr 20, 2004 at 03:07:10PM +1200, E.Chalaron wrote:
> Was wondering how I could get a MPEG2 4 DVD with a constant bit
> rate. I do not mind about sparing DVDs, I'd rather have the best
> quality possible.
Constant bit rate does not equate to best quality. Unless you set
the CBR ceiling h
On Wed, Apr 21, 2004 at 01:22:13PM +0200, Torsten Mohr wrote:
> Hi,
>
> i'd like to build a VDR based on my DC10 card.
>
> But that card has no tuner, so the idea is to
> either:
>
> - add an external tuner that selects the program to record.
> Can anybody recommend an external tuner?
Any VCR
On Thu, Apr 22, 2004 at 07:44:33PM +0200, Torsten Mohr wrote:
> Hi,
>
> thanks for that hint.
>
> It looks like this project is not yet really stable,
> has anybody got some experiences with this?
If you mean the pvr250/350 driver, it seems very stable. I've been
running one in a second box now
On Mon, Jun 21, 2004 at 09:42:52AM -0400, Brian J. Murrell wrote:
> ...
> So my command line is:
>
> $ lav2wav file.eli | sox -t wav - -t wav /dev/null stat -v
>
> but both lav2wav and sox both use up negligible CPU in doing this
> job, and it takes far too long. lav2wav's CPU usage is about 2%
On Mon, Jun 21, 2004 at 11:11:09AM -0400, Brian J. Murrell wrote:
> On Mon, 2004-06-21 at 10:28 -0400, Richard Ellis wrote:
>
> > Check your disk I/O read bandwidth. Lav2wav is heavily read I/O
> > bandwidth bound. ...
>
> /dev/hda:
> Timing buffer-cache reads
On Mon, Jun 21, 2004 at 03:25:54PM -0400, Brian J. Murrell wrote:
> Right but since then I have simplified the test to just lav2wav sucking.
> See my previous e-mail:
>
> $ time lav2wav file.eli > file.wav
>INFO: [lav2wav] WAV done
> 0.58user 12.01system 1:49.86elapsed
On Tue, Jun 22, 2004 at 07:31:58PM +1200, Steven Ellis wrote:
> On Tue, 2004-06-22 at 17:45, Steven M. Schultz wrote:
> > On Tue, 22 Jun 2004, Steven Ellis wrote:
>
> > Get yourself a IEEE1394 card (very cheap) and a Canopus ADVC100
> > or even better (but somewhat more expensive) ADVC300 analog t
On Tue, Jun 22, 2004 at 08:57:43AM -0700, Steven M. Schultz wrote:
>
> On Tue, 22 Jun 2004, Steven Ellis wrote:
>
> > 1. Can't really build a PVR around this, which is part of the
> > long term goal.
>
> You most certainly can. Might be an extra (S-Video or composite)
> cable or two involved bu
On Tue, Aug 24, 2004 at 06:36:30PM -0400, Selva Nair wrote:
> On Tue, 24 Aug 2004, Steven M. Schultz wrote:
>
> > > My capture card is a DC10+ under v4l - that's the resolution it
> > > captures at full size. On my previous small project I used -d
> > > 2, but I think on this one I used -d 1 in l
On Thu, Sep 02, 2004 at 11:10:04PM +0100, Anne Wilson wrote:
> I posted to the list a while back with what sounds to be an
> identical problem, stuttering sound. I was using
> Kino->dvdauthor->k3b to DVD -r & +r & +rw. From memory using this
> combination and accepting kino's default mpeg2enc, mpeg
On Tue, Sep 21, 2004 at 04:56:04PM +0200, Bernhard Praschinger wrote:
> Hallo
>
> > If you're in a 625line (usually "PAL") video country then VHS has
> > 576 active (vertical) lines in 2 fields just like TV and DVDs.
> >
> > VHS does lack resolution though since it effectively only has 200
> > or
On Wed, Sep 22, 2004 at 06:11:24PM +0200, Bernhard Praschinger wrote:
> Hallo
>
> When you have only 2MHz of bandwith, you cannot have a chessboard
> of white/black pixles and in each row 360 white annd 360 Black
> pixles for PAL. The voltage level has to raise and fall. And with
> 2MHZ of bandwit
On Sun, Oct 03, 2004 at 02:23:32PM +0200, Martin Samuelsson wrote:
> Once in a while, my video computer die from a kernel panic. If this
> happens while I'm recording something (which it normally does), I'm
> left with an avi file with no usable values in the header.
>
> Is there any good way to f
On Wed, Oct 27, 2004 at 01:53:01PM +0200, Dik Takken wrote:
>
> Here are two more problems that I discovered while working with
> glav/lavplay:
>
>
> * Simple MPlayer-style keyboard control. Using the arrow keys to seek,
> space as pause toggle and use the arrow keys to seek frame-by-frame whe
On Wed, Oct 27, 2004 at 10:06:42PM +0100, scott wrote:
> I don't understand when you say "You won't see comb effects on your
> TV-set"
It (the comb effect) will look different on a TV set than on a
computer monitor. You can still see it if you know what to look for,
but the visual effect is diffe
On Thu, Oct 28, 2004 at 12:26:24PM +0200, Dik Takken wrote:
> Quote from the mpeg2enc manual, -b option:
>
> "If variable bit-rate mode has been selected (see the -q option)
> this is the maximum bit-rate of the stream."
>
> So, the "-b" value is not the average, but the upper limit when
> "-q"
On Sat, Oct 30, 2004 at 06:42:18PM +0200, Dik Takken wrote:
> I have done a bit of testing, comparing these two encoding
> pipelines:
>
> png images -> yuv4mpeg -> mjpeg -> mpeg2
>
> png images -> yuv4mpeg -> mpeg2
>
> The quality produced by the second pipeline is clearly a lot
> better. The mj
On Sat, Oct 30, 2004 at 11:30:29PM +0200, Dik Takken wrote:
> Fact is that using MPlayer's post processing can make compressed
> material look better to the human spectator, but the question is
> still if an encoder like mpeg2enc will also like the post-processed
> stream better.
That's a question
On Thu, Nov 25, 2004 at 12:01:29PM +, Anne Wilson wrote:
Subject: [Mjpeg-users] Audio ring buffer overflow in lavrec
> This section of input has a rather high volume. I tried recording
> with
>
> lavrec -f a -i P -d 2 -q 80 -s -l 60 -R l -U filename.avi
>
> and have tried dropping -l to 40,
On Thu, Nov 25, 2004 at 01:53:28PM +, Anne Wilson wrote:
> Without -U O don't even get a start:
Then that's not a solution. :)
> A/V sync ins/del: 028/000
^^^
This seems very suspicious. 28 inserted frames for 15 seconds of
recording is way too much.
You have something
On Mon, Dec 13, 2004 at 09:35:19PM +0100, Dik Takken wrote:
> On Mon, 13 Dec 2004, Steven M. Schultz wrote:
>
> > Can the PVR250, etc handle external devices such as a VCR? If so
> > that would be a good approache, but if the goal is to convert old
> > tapes to DVD then something like the Canopus
On Mon, Dec 13, 2004 at 10:34:43AM -0800, Steven M. Schultz wrote:
>
> On Mon, 13 Dec 2004, Richard Ellis wrote:
>
> > might also consider one of the hardware mpeg2 compression boards
> > instead of a MJPEG/DV solution. I can attest that the Hauppage WinTV
> > PV
On Wed, Dec 15, 2004 at 10:35:06AM +0100, Frank Albrecht wrote:
> > Do you still record with the BT878 card ?
>
> Yes, from the DVD-T Box via fbas(composite). This Signal contains
> already Blocks due to the mpeg-bitrate.
Do you mean that the signal from the DVD-T box that is being recorded
alrea
On Mon, Dec 13, 2004 at 09:54:38AM -0800, Steven M. Schultz wrote:
>
> I do not know if the PVR-250 (or 350) can be used as a general
> purpose capture/encoding device (if a VHS deck can be attached) or
> if it's limited to signals received via the TV tuner section of the
> card.
The PVR-250 has
On Mon, Dec 13, 2004 at 11:06:46AM +0100, Dik Takken wrote:
>
> So, I'm looking for a decent hardware MJPEG capture card that is
> currently available in computer stores.
I'm not so sure that such exists today. Unless you consider Ebay to
be a "computer store" in which case MJPEG capture cards a
On Tue, Dec 14, 2004 at 12:15:22AM +0100, Dik Takken wrote:
> On Mon, 13 Dec 2004, Richard Ellis wrote:
>
> >>I want to edit the video after capture, so an MPEG2 capture card
> >>is not an option. The image quality is too low.
> >
> >Ed
On Thu, Dec 16, 2004 at 03:41:49PM +0100, Frank Albrecht wrote:
>
> On Wed, Dec 15, 2004 at 10:35:06AM +0100, Frank Albrecht wrote:
> >> Yes, from the DVD-T Box via fbas(composite). This Signal
> >> contains already Blocks due to the mpeg-bitrate.
>
> > Do you mean that the signal from the DVD-T
On Fri, Dec 31, 2004 at 09:29:41AM -0800, Steven Boswell II wrote:
> >Aieee - but if you're using a composite cable then the VCR is
> >MASHING/MUSHING/CURDLING/DOWNGRADING/etc the Y and C signals into
> >a composite signal - that is a LOSSY (and damaging) conversion and
> >even the best Y/C separat
On Sat, Jan 15, 2005 at 12:49:57PM -0300, Marco Carvalho wrote:
> Hi,
> I'm trying capture with lavrec, if someone have have any sugestion...
First, verify that you can capture audio with an audio only capture
app (one that uses the OSS emulation, as lavrec does not know ALSA
directly).
If you ha
On Wed, Jan 19, 2005 at 11:27:18PM +0100, Roine Gustafsson wrote:
>
> On Wednesday, Jan 19, 2005, at 19:02 Europe/Stockholm, Steven Boswell
> II wrote:
>
> >/video/DVD/URGH-A Music War
> >(DVD,ac3,advc-colorscale-conform-kinecoF1-newd1_z1t2m30M3-med_fr1R1w8-
> >m2e_b5055q1D10H).mpg
> >
>
>
On Wed, Jan 26, 2005 at 10:07:12PM +0100, Thomas B?rkel wrote:
> HI!
>
> I got a kernel oops while mpeg2enc was running. When I tried the
> same encoding again later (after reboot), the machine froze.
>
> This is the first time, I had problems with mpeg2enc. I tested the
> memory and hard disks (
On Fri, Jan 28, 2005 at 01:36:37PM +0100, Thomas B?rkel wrote:
> HI!
>
> Richard Ellis wrote:
>
> >Maybe heat?
> >
> >Mpeg2enc will push your CPU to run at 100% power for quite a lengthy
> >amount of time, and if your CPU cooler is not able to handle the h
On Tue, Feb 08, 2005 at 04:27:08PM +, John Gay wrote:
> Well, I finally figured out how to get POV-Ray to output non-3:4
> ratio frames, so I'm playing around with using Wide screen setting.
>
> For extra resolution, I'm generating 16:9 frames at 2048 X 1152 for
> scaling down. The default out
On Wed, Feb 09, 2005 at 12:21:16AM +0100, Lehmeier Michael wrote:
> Is there a rule of thumb when to use interlacing and when not?
If the source material is interlaced, it's generally better to keep
it that way.
If the destination is an interlaced display (television) you have
little choice, at s
On Wed, Feb 09, 2005 at 10:32:17PM +, John Gay wrote:
> > On Wednesday 09 February 2005 17:54, Richard Ellis wrote: But you
> > said above that you wanted max quality. Technically, that is
> > "max" quality. Pov-ray created a pixel, the mpeg encoder
> >
On Wed, Mar 02, 2005 at 09:37:37PM +0100, Jan Rottschaefer wrote:
> ...
>
> When i record one hour with
>
> streamer -t 1:00:00 -s 480x576 -r 25 -j 85 -f mjpeg -F stereo -o
> testy.avi
>
> i get a 6 to 7Gig avi file. Next step i extract video and audio using:
> ...
> lav2yuv +p testy.avi | m
On Thu, Mar 03, 2005 at 06:31:42PM +0100, Jan Rottschaefer wrote:
> hi Richard,
>
> so its is normal that
>
> lav2yuv +p testy.avi | mpeg2enc -f8 -b4000 -o testy.m1v
>
> does not work with avi's larger than 2Gig and you can not do
> anything about that??
Yes. At present it is a limitation of
On Thu, Mar 03, 2005 at 10:09:05PM +0100, Lehmeier Michael wrote:
> Hi!
>
> I recorded a nature documentary on television.
> ...
>
> The result of the reencoding was bigger than the original 720x576!
Most likely due to noise and encoding/decoding artifacts.
> Am I doing something really wrong o
On Mon, Mar 21, 2005 at 12:35:35AM +0200, Matti Haveri wrote:
> >> PAL/NTSC 352x288/240 is a valid DVD resolution but I'm unsure whether
> >> I should encode it as MPEG1 or MPEG2.
> >
> > MPEG1
>
> Things were clear for a few days but now I'm confused again ;)
You've actually discovered a "cardin
On Sun, Mar 20, 2005 at 04:20:48PM -0800, Steven M. Schultz wrote:
>
> On the recently discussed topics of "blocks in dark scenes" and
> "does the encoder see things differently than the eye" I have
> something that might be of interest.
>
> I pulled up a still frame from a DV file that to
On Mon, Mar 21, 2005 at 11:18:36AM -0800, Steven M. Schultz wrote:
>
>
> On Mon, 21 Mar 2005, Richard Ellis wrote:
>
> > What you are likely seeing there is the limits of the accuracy of
> > the ADC of whatever encoded the video. I.e., ADC noise, which
> > will
&g
On Tue, Jul 26, 2005 at 10:07:47AM +0200, Dik Takken wrote:
>
> 2: Allow yuvplay to be used in the middle of a processing chain,
> like this:
>
> ... | y4mscaler ... | yuvplay | mpeg2enc ...
>
> Now yuvplay can be used as a progress monitor anywhere in the
> processing chain. Possibly even mul
On Wed, Oct 26, 2005 at 03:12:03PM +0100, Anne Wilson wrote:
> Based on the work I did last year, I issued the command
>
> lavtrans -o title.jpg -f i 286 ~/susan.avi
^^^
> Maybe something has changed, or maybe I've got it wrong, but this didn't
> work. I got
>
> Er
On Tue, Dec 20, 2005 at 10:13:01AM +0100, Martin Samuelsson wrote:
> On Mon, 19 Dec 2005 18:20:56 +0100
> Bernhard Praschinger <[EMAIL PROTECTED]> wrote:
>
> Lavtools, avilib, or something, likes to write an empty RIFF header
> when beginning and recording an avi file. If there is a sudden or
> un
> Hi all,
>
> Thanks to some excellent Feedback from Wolfgang Hessler and Olaf Beck
> I've found a nasty timestamping bug in mplex. Annoyingly the Bug has
> no effect on my DVD player or the Software players I normally use to
> regression test mplex.
>
> However, if your player uses a particu
--- [EMAIL PROTECTED] wrote:
> On Mon, Dec 30, 2002 at 10:16:18AM -0800, Trent Piepho wrote:
> >
> > If you just want a PVR, then why not keep the recording in mjpeg form?
>
> I have not tried any of those. I am doing a straight
>
> $ lav2yuv | mpeg2enc
>
> > Those steps are very cpu intensiv
--- Ronald Bultje <[EMAIL PROTECTED]> wrote:
> Hi Brian,
>
> On Sun, 2003-01-05 at 16:28, [EMAIL PROTECTED] wrote:
> > When I use lavrec to create a movtar file, and then try to extract the
> > audio from the movtar file with lav2wav, it comes out "gurgly". By
> > gurgly, imagine the filter a sp
--- [EMAIL PROTECTED] wrote:
> 1. What's the easiest way to swap the fields of a DC10+ captured mjpeg
> .mov file? The interlacing order is only wrong spatially (the temporal
> order is correct).
If playing the MJPEG file back over the DC10+ video output with the
lavplay "-x" switch fixes the pro
--- Florin Andrei <[EMAIL PROTECTED]> wrote:
> On Thu, 2003-02-20 at 08:44, Bernhard Praschinger wrote:
> >
> > > What do you guys recommend as a TV out device for a Linux computer?
> > > The requirements as i can think of right now:
> > > - drivers available for free (or coming with the device) b
--- "Steven M. Schultz" <[EMAIL PROTECTED]> wrote:
> Hi -
>
> > From: [EMAIL PROTECTED]
> > Ok, so I just discovered that yuvmedianfilter has a -I switch for
> > interlaced inputs (it switches to separate field filtering).
>
> H, I haven't noticed the jerkiness. Seemed to save some b
--- "Steven M. Schultz" <[EMAIL PROTECTED]> wrote:
> Hi -
> > From: Richard Ellis <[EMAIL PROTECTED]>
> > > > From: [EMAIL PROTECTED]
> > > > Ok, so I just discovered that yuvmedianfilter has a -I switch for
> > > > interlaced i
While we are on the subject of parameter handling bugs in the yuv* tools,
this one also exists:
Call yuvdenoise with this parameter: -b 2,2,-2,-2 which according to the
man page should do this:
"Sometimes it may be usefull to have relative coordinates like this:
yuvdenoise -b 16,16,-16,-16
--- [EMAIL PROTECTED] wrote:
> There's no free lunch, so can somebody please tell me what sorts of
> artifacts I need to look for?
In my experience with experimenting with the --reduce-hf flag to mpeg2enc,
that having the flag turned on created a ringing effect at sharp edge
transitions in the
--- Ronald Bultje <[EMAIL PROTECTED]> wrote:
> Hey Richard,
>
> On Fri, 2003-03-07 at 14:13, Richard Ellis wrote:
> > Note, w/h appear to be the result of subtracting two from unsigned
> > int's that were initialized to zero, instead of being initialized to
>
> using --keep-hf with analog source material. However, my (informal)
> tests seemed to indicate that --keep-hf did pretty good with denoised
> (i.e. yuvdenoise/yuvmedianfilter) analog source material. I wasn't sure
> if it was just my imagination.
> Anyone have any experience wit
--- [EMAIL PROTECTED] wrote:
>
> > So if for example you had an image of a building against a blue sky,
if
> > you looked closely next to the edge of the building there would be
> > ghosts of the building edge adjacent to the edge in the playback image
> > of the blue sky. Credit lettering and s
You are correct. MPEG at it's core is more or less a variant of still
image jpeg, and the quantization stage of jpeg can produce a ringing
effect due to what the real meaning of the quantization pass in the
frequency domain.
But in any case, the --keep-hf flag to mpeg2enc in my experience reduces
--- Dirk <[EMAIL PROTECTED]> wrote:
> Hi all. Can anyone explain me why lavrec doesn't work very well with the
> "at" command? It doesn't matter if I use a script with a lavrec command
> or if I use the lavrec command directly with at.
>
> Lavrec does exactly what I want except scheduling a captu
On Mon, Sep 15, 2003 at 05:54:51PM -0600, Allen J. Newton wrote:
> I'm considering getting an LML33 board from Linux Media Labs to
> record broadcasts for timeshifting/recording (I like to watch on my
> schedule, and usually after snipping commercials).
> ...
> How are people here handling this? I
Has anyone else noticed that the -Q parameter to mpeg2enc v 1.6.1.90
seems to have much less effect than it did in version 1.6.1? I've
got one pair of encodes (same capture file input to both) that I ran
yesterday where using -Q 0.0 and -Q 4.0 resulted in exactly the same
size encoded file. Unde
On Wed, Sep 17, 2003 at 03:08:25PM -0700, Steven M. Schultz wrote:
>
> On Wed, 17 Sep 2003, Richard Ellis wrote:
>
> > Has anyone else noticed that the -Q parameter to mpeg2enc v 1.6.1.90
> > seems to have much less effect than it did in version 1.6.1? I've
>
>
On Thu, Sep 18, 2003 at 08:40:43AM -0400, Matthew Caron wrote:
> >Right, I was thinking about a 3-ware IDE Raid. I'll have to compare
> >the two.
>
> Well, the one thing you have to be careful of is that a lot of the low
> end RAID controllers are essentially just hard disk controllers with
> l
On Wed, Sep 17, 2003 at 07:57:14PM -0700, Steven M. Schultz wrote:
>
> On Wed, 17 Sep 2003, Richard Ellis wrote:
>
> > is driven by Q (in that section at least) was reworked quite a bit in
> > January. That would account for the difference I'm seeing in the new
>
On Thu, Sep 18, 2003 at 08:45:45PM -0700, Steven M. Schultz wrote:
>
> Is this for protection against a drive failure?DV (or MJPEG)
> capture's data rate requirements are extremely modest (in the
> ~3.5MB/s range - even a notebook drive can sustain that without
> breathing hard).
It depends o
On Fri, Sep 19, 2003 at 05:43:42AM +0400, dmitriy wrote:
> I use Pinnacle DC10Plus with zoran 36060/67 and its work fine with one
> program.
>
> Whether it is possible to conduct record of video simultaneously from
> one device (!!) several programs? It is necessary, that some programs
> simult
On Fri, Sep 19, 2003 at 09:36:55PM -0700, Steven M. Schultz wrote:
>
> 640x480? Thought fullframe NTSC was 704x480 - or is the DC10 using
> square pixels instead of the Rec.601 10:11 pixels? DV's weird - it
> gets an extra 8 pixels on each side for 720x480.
The video digitizer chip that's used
On Fri, Sep 19, 2003 at 07:02:54PM -0700, Steven M. Schultz wrote:
>
> > The -N parameter does work quite well for shrinking a file, but
> > it seems it's a bit sensitive. In a test run, with -N 0.0 I got
> > a file size of 748,032 kbyte. With -N of 0.1 I got 708,956 kbyte
> > on the same input.
On Sat, Sep 20, 2003 at 08:41:21AM +0200, Ronald Bultje wrote:
> And you didn't show the version, please make very sure that you're
> using the latest CVS. I need to release 0.9.5 soon, I guess... :).
Have there been significant changes between the released 0.9.4 and
the current CVS driver to warr
On Sat, Sep 20, 2003 at 10:05:35AM -0700, Steven M. Schultz wrote:
>
> On Sat, 20 Sep 2003, Bernhard Praschinger wrote:
>
> > Audio: ( Samplerate * Channels * Bitsize ) / (8 * 1024)
> > Video: (width * height * framerate * quality ) / (200 * 1024)
> >
> > You have to add both values together. To
On Sat, Sep 20, 2003 at 10:36:50AM -0700, Steven M. Schultz wrote:
> Hi -
>
> > From: Bernhard Praschinger <[EMAIL PROTECTED]>
> >
> > Audio: ( Samplerate * Channels * Bitsize ) / (8 * 1024)
> > Video: (width * height * framerate * quality ) / (200 * 1024)
> >
> > You have to add both values tog
On Sat, Sep 20, 2003 at 11:17:11AM -0700, Steven M. Schultz wrote:
>
> On Sat, 20 Sep 2003, Richard Ellis wrote:
>
> > Real world numbers:
>
> Super! Thanks - always good to have those ;)
>
Here's some more:
34 minutes of capture, DC10+, 320x480 fram
On Fri, Sep 19, 2003 at 10:47:35PM -0700, Steven M. Schultz wrote:
>
> 4 encodings were done using -N of 0, 0.5, 1.0 and 1.5 (and 2
> different -q values, and using yuvdenoise in -f and -l modes).
> Quite an exhaustive (and time consuming ;)) set of runs.
> ...
I have some more real world numbers
On Sun, Sep 21, 2003 at 05:51:19PM -0700, Steven M. Schultz wrote:
>
> On Sun, 21 Sep 2003, Richard Ellis wrote:
>
> > The only difference between these files was different -N values.
> > All other denoise/mpeg2enc parameters were identical.
>
> What value are yo
On Mon, Sep 22, 2003 at 10:22:15AM +0200, Ronald Bultje wrote:
> Hi,
>
> On Sun, 2003-09-21 at 14:14, Matt Trim wrote:
> > I seem to be having this same problem with my Buz recordings - of
> > the same TV program - one day it will be OK and the next it will
> > be reversed. Am using the 0.9.4 dri
Attached is a small patch that I put together today that based on my
measurements produces about a 6-7% speedup of yuvdenoise if the
luminance contrast option is used. I got the idea for the change
from the yuvcorrect sources, the optimization is to pre-compute the
contrasted values for pixel val
On Mon, Sep 29, 2003 at 08:13:47PM -0700, Steven M. Schultz wrote:
>
> On Mon, 29 Sep 2003, Richard Ellis wrote:
>
> > Attached is a small patch that I put together today that based on my
> > measurements produces about a 6-7% speedup of yuvdenoise if the
> > lumina
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