Re: [Mjpeg-users] DC30: Natoma bug / buffer size
Hi Bernhard,
Which CPU do you have ?
Do video programms like xawtv work ?
Which input do you want to use ?
What does really work ?
What is the output of lavrec ?
Sorry for being unclear: capturing (with lavrec) works perfectly for me,
the only thing that bothers me is the limited buffer size that
heavily limits the bitrate in full resolution capturing.
(Just for the records, I am using a PIII 1GHz, 512MB RAM, and capturing
using composite input)
have you tried recording with a bigger buffer size ?
You mean with the -b switch? Yes, I tried that, but lavrec still reports
a buffer of 128KB, here's a part of the output.
lavrec -f a -i p -d 1 -q 100 -t 10 -w -m -v 1 -a 0 -l 0 -b 512 rec.avi
INFO: [lavrec] Recording parameters:
INFO: [lavrec] Output format: AVI
INFO: [lavrec] Input Source: Composite PAL
INFO: [lavrec] Decimation: 1
INFO: [lavrec] Quality:100
INFO: [lavrec] Recording time: 10 sec
INFO: [lavrec]
INFO: [lavrec] MJPEG buffer size: 512 KB
INFO: [lavrec] # of MJPEG buffers: 64
INFO: [lavrec] Audio disabled
INFO: [lavrec] Auto detecting input and norm ...
INFO: [lavrec] Image size will be 768x576, 2 field(s) per buffer
INFO: [lavrec] Got 32 buffers of size 128 KB
The resulting file is about 27MB, a way too small.
Hmm, that seems to be a problem with the chipset. I never had a Intel
chipset the last 7 years. That problem was with the DC10. It might not
be a problem with the DC30.
So you might try to change that in the zoran driver, search for Natoma,
you should fined something like that:
if (pci_pci_problems & PCIPCI_NATOMA && zr->revision <= 1) {
zr->jpg_buffers.need_contiguous = 1;
dprintk(1,
KERN_INFO
"%s: ZR36057/Natoma bug, max. MJPEG buffer size is 128K\n",
ZR_DEVNAME(zr));
}
remove at least the zr->jpg_buffers... line than this limit should not
be there. But I don't know what happen when you try to record with a
bigger buffer size.
Nice, that seems to work. lavrec now reports a buffer size of 512KB and
the captured file is around 84MB in size and seems to play without
artifacts or crashes (or whatever would happen). I think this should
prove that the bug is not existant here, right? Great help, thanks a
lot! :-)
I'm just wondering a bit at the file size, as written above the recorded
file is 84MB (250 frames or 10 s, no audio). The maximum bitrate that
can be selected in the windows driver of the dc30 are 7100KB/s which
would lead to a 70MB file (theoretical and practical).
So does the linux driver allow a higher bitrate or is it just some kind
of overhead (20% seems too much) in the file?
mplayer says:
VIDEO: [MJPG] 768x576 24bpp 25.000 fps 70653.1 kbps (8624.6 kbyte/s)
Thanks for your help so far!
Regards,
Malte
---
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
___
Mjpeg-users mailing list
Mjpeg-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] DC30: Natoma bug / buffer size
Hi Ronald, Highest allowed bitrate leads to 1:2 compression, so for a 768x576 at 2bpp at 25fps (full PAL), that is 768x576x2x25/2 =~ 11 MB/s max (in theory). ok, thanks for clarification. Nevertheless, the linux driver seems to allow a higher bitrate (or lower compression) than the original driver which is quite impressive I think. Thanks! Regards, Malte --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click ___ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] Strange error -- lavrec saying Not ready for capture
Ok, I got more info. And it looks like it is my sound card. But not sure how I should fix it. (FYI, I am using mythtv to record and everything works fine so I know my capture card + sound card can record. I would like to try lavrec since I want a record in mpeg setting). INFO: [lavrec] Recording parameters: INFO: [lavrec] Output format: AVI INFO: [lavrec] Input Source: Auto detect INFO: [lavrec] Decimation: 4 INFO: [lavrec] Quality:80 INFO: [lavrec] Recording time: 60 sec INFO: [lavrec] INFO: [lavrec] MJPEG buffer size: 256 KB INFO: [lavrec] # of MJPEG buffers: 64 INFO: [lavrec] Audio disabled --DEBUG: [lavrec] Maximum size per file will be 1739 MB INFO: [lavrec] Auto detecting input and norm ... --DEBUG: [lavrec] Using current input signal settings for non-MJPEG card INFO: [lavrec] Unmuting tuner audio... INFO: [lavrec] Error setting tuner audio params: Invalid argument ++ WARN: [lavrec] Not ready for capture (state = 0)! My capture card has no TV tuner. And I am using my sound card (line-in) to record. --Vincent From: "Ronald S. Bultje" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] CC: mjpeg-users@lists.sourceforge.net Subject: Re: [Mjpeg-users] Strange error -- lavrec saying Not ready for capture Date: Sun, 24 Jul 2005 10:44:32 +0200 On Sun, 2005-07-24 at 07:06, Vincent Yau wrote: > lavrec --software-encoding --format=a -in --quality=80 > --geometry=720x480+0+0 --audio-bitsize=0 --time=60 ./test.avi > ++ WARN: [lavrec] Not ready for capture (state = 0)! This almost certainly means that you've hit some limitation that we haven't seen before, since the 'not ready for capture' is basically an internal assertion. Looking at the code, this implies that lavrec_main() most likely failed (the return value isn't being checked in lavrec.c:main()). Can you run with -v2 so we can see all messages and see how far it goes? Cheers, Ronald -- Ronald S. Bultje <[EMAIL PROTECTED]> --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click ___ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] Strange error -- lavrec saying Not ready for capture
Hallo > Ok, I got more info. And it looks like it is my sound card. But not sure > how I should > fix it. (FYI, I am using mythtv to record and everything works fine > so I know my capture card + sound card can record. I would like to try > lavrec since I want a record in mpeg setting). Do you have any sound deamon running ? Oder any other Programm that uses the /dev/dsp device ? You can check that with: fuser /dev/dsp (0-4) Than check which programm uses the dsp and stop it befor starting lavrec. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click ___ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] Strange error -- lavrec saying Not ready for capture
Hi Bernhard: I have checked and nothing else is running or using up any relevant port (/dev/dsp 0-4 or /dev/audio) Just for testing, I even purposedly played an mp3 music and then ran fuser and it did detect a process taking up /dev/dsp. Any other suggestion? Again the output I am getting is: lavrec --software-encoding -in -q 100 --time=60 -s -Rl -m --audio-volume=-1 -v2 ./test.avi INFO: [lavrec] Recording parameters: INFO: [lavrec] Output format: AVI INFO: [lavrec] Input Source: BT8x8 1st input NTSC INFO: [lavrec] Decimation: 4 INFO: [lavrec] Quality:100 INFO: [lavrec] Recording time: 60 sec INFO: [lavrec] INFO: [lavrec] MJPEG buffer size: 256 KB INFO: [lavrec] # of MJPEG buffers: 64 INFO: [lavrec] Audio parameters: INFO: [lavrec] Audio sample size: 16 bit INFO: [lavrec] Audio sampling rate: 44100 Hz INFO: [lavrec] Audio is STEREO INFO: [lavrec] Audio input recording level: Use mixer setting INFO: [lavrec] Level of correction for Audio/Video synchronization: INFO: [lavrec] Lost frame compensation and frame drop/insert --DEBUG: [lavrec] Maximum size per file will be 1739 MB INFO: [lavrec] Using mmap(2) system call for capture INFO: [lavrec] Auto detecting input and norm ... INFO: [lavrec] Unmuting tuner audio... INFO: [lavrec] Error setting tuner audio params: Invalid argument ++ WARN: [lavrec] Not ready for capture (state = 0)! Press enter to start recording>Recording time : 0.00.00:00 Lost frames : 000 A/V sync ins/del: 000/000 Audio errors: 000 From: Bernhard Praschinger <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] CC: mjpeg-users@lists.sourceforge.net Subject: Re: [Mjpeg-users] Strange error -- lavrec saying Not ready for capture Date: Sun, 24 Jul 2005 17:58:17 +0200 Hallo > Ok, I got more info. And it looks like it is my sound card. But not sure > how I should > fix it. (FYI, I am using mythtv to record and everything works fine > so I know my capture card + sound card can record. I would like to try > lavrec since I want a record in mpeg setting). Do you have any sound deamon running ? Oder any other Programm that uses the /dev/dsp device ? You can check that with: fuser /dev/dsp (0-4) Than check which programm uses the dsp and stop it befor starting lavrec. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click ___ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click ___ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] Strange error -- lavrec saying Not ready for capture
On Sun, 2005-07-24 at 07:06, Vincent Yau wrote: > lavrec --software-encoding --format=a -in --quality=80 > --geometry=720x480+0+0 --audio-bitsize=0 --time=60 ./test.avi > ++ WARN: [lavrec] Not ready for capture (state = 0)! This almost certainly means that you've hit some limitation that we haven't seen before, since the 'not ready for capture' is basically an internal assertion. Looking at the code, this implies that lavrec_main() most likely failed (the return value isn't being checked in lavrec.c:main()). Can you run with -v2 so we can see all messages and see how far it goes? Cheers, Ronald -- Ronald S. Bultje <[EMAIL PROTECTED]> --- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click ___ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
