[Mjpeg-users] Re: best parameters for DVB-T analog capturing

2004-12-16 Thread Frank Albrecht
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 already

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Steven M. Schultz
On Mon, 13 Dec 2004, Dik Takken wrote: What I see when running 'top' is that the user CPU usage is about 90% and system usage 10%. This happens when I capture at 640x480 or higher resolution. I only get 100% perfect captures at 512x384 and below. Hmmm, that is puzzling - I thought

[Mjpeg-users] best parameters for DVB-T analog capturing

2004-12-16 Thread Frank Albrecht
Hi, sorry for my bad english. I have used a BT878 card for capturing from TV and VHS via composite with a Linux(now 9.0) and mjpegtools 1.6.2-0. Now, we have DVB-T and i would like to keep this setup for some time, it works fine. Since with DVB-T there are still blocking artifacts, i would ask

Re: [Mjpeg-users] Building from CVS

2004-12-16 Thread Michael Hanke
Am Dienstag 14 Dezember 2004 18.33 schrieb Steven M. Schultz: On Tue, 14 Dec 2004, Michael Hanke wrote: I tried to build the mjpegtools from CVS. Unfortunately, I could not run autogen.sh successfully. The most important error: HAVE_PNG not defined in AM_CONDITIONAL That

Re: [Mjpeg-users] best parameters for DVB-T analog capturing

2004-12-16 Thread Bernhard Praschinger
Hallo You are not subscribed to the list, so your mail was held. Subscribe to the mjpeg-users list before posting again, else your mail will be held again, add wait till one mailinglistadmin approves your mail. I have used a BT878 card for capturing from TV and VHS via composite with a

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Dik Takken
On Mon, 13 Dec 2004, Steven M. Schultz wrote: Keep in mind as well that for MJPEG, if you crank the quality of the recording up quite high, you'll also need a speedy hard drive to... Yep - and I think that (more than the speed of the cpu) is what is causing problems for Dik. What I see

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Mark Rages
Dik, Sorry, I made a mistake in the first example (untested code, you know). I tested this one, it works: #!/bin/python import mpeg,sys in_filenames=sys.argv[1:-1] out_filename=sys.argv[-1] in_mpegs=map(mpeg.MpegFile,in_filenames) reduce(lambda a,b: a+b, in_mpegs).to_file(out_filename) On

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Richard Ellis
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 PVR250 card's will generate a simply

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Mark Rages
On Mon, 13 Dec 2004 21:35:19 +0100 (CET), Dik Takken [EMAIL PROTECTED] wrote: I would think that, since 12GB/hr is not exceptionally large, DV is still a bit of a space/quality compromise compared to MJPEG. This video format is not designed with video editing in mind, rather storage. MJPEG on

Re: [Mjpeg-users] Building from CVS

2004-12-16 Thread Steven M. Schultz
On Tue, 14 Dec 2004, Ray Cole wrote: Glad to see someone else has the same type of problems :-) I'm using automake 1.8.5 and autoconf 2.59. I get a ton of AM_CONDITIONAL errors. Are you sure that automake is completely installed and that you have all of the -devel

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Steven M. Schultz
On Mon, 13 Dec 2004, Dik Takken wrote: Since my computer (Athlon 1400) is too slow to capture high quality, full res MJPEG video, I consider buying a hardware MJPEG capture card. There Hmmm, I didn't think cpu speed mattered all that much for 'capture' purposes but rather

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Martin Samuelsson
On Monday 13 December 2004 22:32, Steven M. Schultz wrote: On Mon, 13 Dec 2004, Dik Takken wrote: What I see when running 'top' is that the user CPU usage is about 90% and system usage 10%. This happens when I capture at 640x480 or higher resolution. I only get 100% perfect captures at

Re: [Mjpeg-users] Building from CVS

2004-12-16 Thread Ray Cole
Glad to see someone else has the same type of problems :-) I'm using automake 1.8.5 and autoconf 2.59. I get a ton of AM_CONDITIONAL errors. I'd love to try out some of the changes that have happened over the past year but can't (sniff). processing . Running libtoolize... You should add the

Re: [Mjpeg-users] Re: best parameters for DVB-T analog capturing

2004-12-16 Thread Richard Ellis
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 already

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Bernhard Praschinger
if 320x480 frame then size_per_hour = 20.0 GB/hr * quality_factor/100 if 640x480 frame then size_per_hour = 40.0 GB/hr * quality_factor/100 DV is a flat ~12GB/hr. Now some have mentioned that as a shortcoming (you don't get to select the quality) - but it's a feature to me.

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Richard Ellis
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 3

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Dik Takken
On Mon, 13 Dec 2004, Martin Samuelsson wrote: Hmmm, that is puzzling - I thought the card was supposed to be doing the jpeg compression, almost sounds like some of that is being done in the host. Please correct me if I'm wrong here, but... You seem to assume that Dik has a

Re: [Mjpeg-users] Building from CVS

2004-12-16 Thread Ray Cole
I got past the autogen.sh stuff. Now I'm getting a plain ol' compiler error: mpeg2encoptions.cc: In member function `int MPEG2EncOptions::InferStreamDataParams(const MPEG2EncInVidParams)': mpeg2encoptions.cc:149: error: `mpeg_valid_framerate_code' undeclared (first use this function)

Re: [Mjpeg-users] Building from CVS

2004-12-16 Thread Ray Cole
Well, I think I was in the wrong branch. I now re-fetched the code without specifying a branch. It looks like more modern stuff. Anyway, when I try to run autogen.sh with it I get: configure.ac:107: error: possibly undefined macro: AC_DEFINE If this token and others are legitimate,

Re: [Mjpeg-users] What Recent MJPEG Card?

2004-12-16 Thread Richard Ellis
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. Editing is indeed an option: LVE (http://lvempeg.sourceforge.net/).

Re: Re: [Mjpeg-users] Building from CVS

2004-12-16 Thread e.chalaron
Maybe someone else will have some suggestions other than install a newer system ;) Not me. It is eventually quicker and better to move to a recent distribution. Just done it for exactly the same reasons Just upgrade, intalls are easy enough (mind initio and SCSI and MDK 10.0 though. May be

Re: [Mjpeg-users] Re: best parameters for DVB-T analog capturing

2004-12-16 Thread Richard Ellis
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 box that