> It's not the encoder ;) I've lost count of the number of VCDs/SVCDs/
> DVDs I've made and never had a 'pause' problem.
This is my first time to have such a problem, too.
> Sounds like dropped frames (unsteady source signal), a player that is
> having trouble reliable r
I'm encoding using standard VCD options, and the resulting picture, while
very good quality, is very jerky. It seems to pause briefly at what I
assume is the GOP boundary. Is there any way to smooth this out?
Thanks,
Jon
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Can you have framerates that are not in the table that you get when you
run mpeg2enc -F 0? If so, how do you specify them?
Thanks,
Jonathan Bartlett
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Use -q 1.
Jon
On Mon, 22 Dec 2003, Daniel Silva wrote:
> Hi,
>
> When encoding a bitstream with the command:
>
>
>
> mpeg2enc "inputfile" -f 3 -b 7500 -q 5 -o "outputfile"
>
>
>
> What is the maximum bitrate I should expect? I was trying to reach a maximum
> bitrate of 7500
> how i can convert 512x218 dim. into mjpeg avi?
Scale it. the height needs to be either 224 or 208. The width is fine.
Jon
>
> thanks!
>
> Dmitriy
>
>
>
> ---
> This SF.net email is sponsored by: IBM Linux Tutorials.
> Become an expert in LI
> One thing I dont quite get. I am new to all this video encoding stuff
> and I see all these forums (mjpeg included) where smart guys are
> fiddling parameters endlessly to get what they want.
>
> And then I walk into Best Buy (an electronics superstore here in the
> US), and see all these one-cli
Video buffer is a completely independent parameter. You can't infer it
from the others. It's how much memory you are requiring the player to
have to decode your video.
On software decoders, you can set this pretty high, because everyone has
lots of RAM at their disposal.
On hardware decoders, t
Are you sure that your DVD player handles SVCDs? I would try encoding it
as a regular VCD and trying that out. I've had all sorts of problems
getting DVD players to play SVCDs when they play VCDs just fine.
Jon
On Wed, 3 Dec 2003, Paul Miller wrote:
-
Thank you very much! This helps a lot. I think I am ready to render now.
Jon
On Wed, 3 Dec 2003, Matto Marjanovic wrote:
>
> >I think I've figured it out, but if someone could verify my results, that
> >would be great. I think I need to design at 1365x768. Using the
> >information from t
For an example of the screens I'm looking at, see
http://www.geodatasys.com/tv.htm
Almost all of the TVs are 16:9, but some of them have native resolutions
os of 1024x768 as well.
Jon
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This SF.net email is sponsored by OSDN's Audience Sur
>
> Aside from the number of pixels needing to be at least even (and a
> multiple of 16 - neither of criteria 1365 meets ;)) you're going to
> have a bunch of pixels hanging off the edge of the screen I think
> since 1365's a lot larger than 1024
>
I think you're misunderst
I think I've figured it out, but if someone could verify my results, that
would be great. I think I need to design at 1365x768. Using the
information from the VCD stills page and other pages I found, I built a
little aspect ratio converter that, given the number of pixels high and
wide the destin
> You have to use very likely the --no-constraints option. Else mpeg2enc
> does not encode at a higher resolution than 720x576, and only up to
> bitrates of 10MBit.
Yeah, I've got that part down. It's just a matter of what size the video
should be pre-scaled.
> If you have to play it back with t
> Hmmm, 1024x768 is 4:3 so I'm a bit confused what is meant by
> "16:9 screen ... resolution of 1024x768"
Yes, it's a really wierd system. It's a computer monitor that runs at
1024x768, but the actual screen dimensions are 16:9, meaning that the
pixel aspect ratio is really screwy, es
I'm rendering an animation that will eventually be displayed on a 16:9
screen that has a resolution of 1024x768. In order for this to look
right, it seems I need to render my animation in a different resolution
(on the PC), and then scale it to 1024x768 so that it will display right
on a 16:9 scre
It seems to be down right now, but when it's up you should check out
http://www.vcdimager.org/stillencode/
It will encode stills for you AND give you the commands it used to do so.
Basically, you combine Xtopnm, pnmscale, ppmntsc, ppmtoy4m, and mpeg2enc
into a pipe. Do it for both the large and
Bernhard - thanks for the tip. Unfortunately, the application this is for
is embedded within a Macromedia Director movie, and VLC doesn't support
ActiveX (at least as far as I could tell), although this might be a good
open-source contribution for my company to make.
Thanks!
Jon
On Wed, 26 Nov
Does anyone know of a better MPEG decoder for Windows Media Player - maybe
one that will play 1024x768 videos? The Windows one won't work - it seems
like DVD players install a better one, but I was looking for something I
could redistribute with the video. Any ideas?
Thanks,
Jonathan Bar
I've got a script which converts stils to video and allows you to give an
overlying audio if you're interested.
Jon
On Wed, 24 Sep 2003, Julio Sanchez wrote:
> On Sun, 21 Sep 2003 03:17:18 -0700, iLLfated wrote:
>
> > Lo all,
> >
> > I've been trying to follow various broken howtos that
> > ill
non wrote:
> I tried this and now I find it stalls on stage 1 ie mpeg2enc and lav2yuv and
> denoise.
>
> Maybe you could send me a copy of your lav2mpeg script?
>
> Raena
>
> On Monday 22 September 2003 04:07, Jonathan Bartlett wrote:
> > I had to physically modify th
> Can anyone explain me why the default is toolame instead of mp2enc? It
> doesn't seem to make much sense to me...
Because toolame is better. However, I mentioned this earlier and I
believe it is fixed in CVS.
Jon
>
> Ronald
>
> --
> Ronald Bultje <[EMAIL PROTECTED]>
> Linux Video/Multimedia d
I had to physically modify the lav2mpeg script to use mp2enc. Just search
for toolame and replace.
Jon
On Sun, 21 Sep 2003, Raena Lea-Shannon wrote:
> I am running SuSE 8.2 with mjpegtools1.6.1 on AMD xp2200 512DDR ASUS V8170 DDR
> MX440 64 MB
>
> From a Sony Digicam using Kino on IEEE raw1394
As a previous poster suggested - it ended up being bad media. But thanks
for the suggestions!
> > I've used mjpegtools to generate an MPEG-1 video. I then turned that
> > video into a VideoCD. Now, the videos play fine on software players, but
>
> Software players will play almost anythin
settings, and standard VCD sizes/bitrates.
> >
> > Jon
> >
> > -- Forwarded message --
> > Date: Sat, 20 Sep 2003 15:26:34 -0700 (PDT)
> > From: Jonathan Bartlett <[EMAIL PROTECTED]>
> > To: [EMAIL PROTECTED]
> > Subject: MPEG-1 Video Crashe
I've been doing a lot of video encoding over the last several weeks with
mjpegtools, and it's great! One suggestion I have is that perhaps when
encoding to MPEG, the codec spend more bandwidth on the center of the
picture in preference to the edges, or have an option to do so. I've had
some video
-- Forwarded message --
Date: Sat, 20 Sep 2003 15:26:34 -0700 (PDT)
From: Jonathan Bartlett <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: MPEG-1 Video Crashes DVD Player
I've used mjpegtools to generate an MPEG-1 video. I then turned that
video into a VideoCD. Now, the videos p
u're in the U.S. on a cable connection yourself.
Thanks in advance for any help you give. Let me know if you have any
questions.
Jonathan Bartlett
---
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Welc
I have a LOT of files that I want to run through lav2yuv, however, when I
have lav2yuv *.avi it complains about too many files (there's about 270).
If I break it up (lav2yuv test_0*.avi; test_1*.avi; lav2yuv test_2*.avi)
the yuvdenoise process stops after the first one finishes. I'm trying to
get
If it's dv, why not just use firewire?
Jon
On Mon, 15 Sep 2003, GMM wrote:
> Hello everyone!
>
> I urgently need your help!
>
> I am looking for a PCI - Capturecard for Linux. The card should work with
> analog and digital pictures from Hi 8 and DV camcorder.
>
> I found a card which is Pinnacle
I have a video that I want to stick on the web. What are the encoding
options that you all have found to be optimal for delivery on the WWW? It
is possible to get video that works on a 56K modem? Do you stick it in
raw MPEG or do you use streaming software?
Jon
--
Some suggestions from someone who does this a lot :)
Change the script to this:
cd /tmp
mkfifo stream.yuv
mkfifo audiodump.wav
mpeg2enc YOURFLAGSHERE -o blah.mpv < stream.yuv&
mp2enc YOURFLAGSHERE -o blah.mpa < audiodump.wav &
mplayer -benchmark -ao pcm -vo yuv4mpeg THEFILE
WAIT FOR COMPLETION OF
Use the -benchmark flag to mplayer. This forces it to be non-realtime.
Jon
On Fri, 27 Jun 2003, Stuart Hodges wrote:
> Hi,
>
> I have video captured by GATOS that I'm using MJPEGTOOLS to convert.
>
> When I use mplayer to split out the output into audio and video the video and
> aud
Also, you may want to set -srate 44100 to be sure the audio comes in
44Khz.
Jon
On Fri, 27 Jun 2003, Stuart Hodges wrote:
> Hi,
>
> I have video captured by GATOS that I'm using MJPEGTOOLS to convert.
>
> When I use mplayer to split out the output into audio and video the video and
>
Does anyone know of a VCD player on Linux that supports PBC?
Jon
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If you are wanting to make a video with sound from stills, I have a script
which will do that, although it needs some work. VCD/SVCD stills don't
work with a sound track.
Jon
On Mon, 23 Jun 2003, Bernhard Praschinger wrote:
> Hallo
>
> > I want to create a small video from jpg-files. I think I h
eads". But when I turn of threading, I get another
> bunch of errors involving just the objectfile 'glib_genmarshal.o'.
> The linker says that it cannot recognize a bunch of constants all
> beginning with '_'.
>
> I need to install GLIB before installing GTK.
&g
Have you installed both glib and the glib development packages? They
probably come with GTK and the GTK development packages.
Jon
On Fri, 20 Jun 2003, Abrokwah, Kwaku wrote:
> Hi when I try and install mjpegtools-1.6.1 I get this error
> with the configuration process (ie when I type ./configur
This entire conversation makes me want to ask:
Is there anyone who really understands all aspects of aspect ratios?
I certainly don't - I'm just starting to learn digital video. But my
future doesn't look too bright considering noone else can figure it out
either :(
Jon
---
chitecture. He needs to see problems and fixes in a very narrow
fashion. Other kernel developers are much better at this.
Jon
On 10 Jun 2003, Ronald Bultje wrote:
> Hey Jon,
>
> On Tue, 2003-06-10 at 22:16, Jonathan Bartlett wrote:
> > Honestly I wish that as soon as the Kernel
2003-06-10 at 18:03, Jonathan Bartlett wrote:
> > Curious why a vanilla kernel would matter. Frankly Linus is the person I
> > trust the least to come up with a stable kernel.
>
> Fortunately then, Linus is not in charge of the stable kernel series.
> Marcello is.
>
> (jus
> Since XFS isn't supported with a current vanilla-kernel I would like
> to change from XFS to another filesystem for multimedia.
> System-partitions use ext3 here.
Curious why a vanilla kernel would matter. Frankly Linus is the person I
trust the least to come up with a stable kernel. XFS is th
Does anyone know of a UNIX method to transform an ASF file to a format
that I can use MJPEGtools to encode to a VCD MPEG? I'm not concerned
about quality loss - it's just a video I'd rather sit and watch on TV
rather than my computer.
Thanks,
Jon
--
Actually, I downloaded nasm and rebuilt w/ the assembly version and it
worked fine.
Jon
On Mon, 9 Jun 2003, Andrew Stevens wrote:
> On Friday 06 Jun 2003 7:56 pm, Jonathan Bartlett wrote:
> > I just re-installed my box, and reloaded mjpegtools, and now mpeg2enc is
> > segfaultin
Thanks!
The reason I was just pumping it to a .yuv is to narrow down where it was
for debugging purposes.
Jon
On Fri, 6 Jun 2003, Steven M. Schultz wrote:
> > From: Jonathan Bartlett <[EMAIL PROTECTED]>
> > I just re-installed my box, and reloaded mjpegtools, and now mpeg2enc
I just re-installed my box, and reloaded mjpegtools, and now mpeg2enc is
segfaulting on me all the time (after about 20 frames). I don't know of
all of the compiler switches I may have changed (same version of RedHat
though - RH8). The things I know I changed:
* Added Quicktime support w/ your
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