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by SnowLeopard
Sat Mar 15, 2014 4:36 pm
Forum: Camera board
Topic: Full FOV preview, 60 and 90fps modes released
Replies: 65
Views: 20212

Re: Full FOV preview, 60 and 90fps modes released

Woohoo!!! Thank-you! Thank-you! Thank-you!
A $50 device that does 90fps!
by SnowLeopard
Fri Jan 03, 2014 4:11 pm
Forum: Camera board
Topic: 60fps video
Replies: 24
Views: 11747

Re: 60fps video

jamesh wrote:I'm hoping to look at this stuff over the next week when my boss gets back (he's the real expert on this stuff), but he may tell me to do something else!
Send him this way and we'll keep him distracted for you! 8-)
by SnowLeopard
Fri Nov 22, 2013 4:52 pm
Forum: Camera board
Topic: EMI issues (EDIT: Low light / high res banding?)
Replies: 32
Views: 5610

Re: EMI issues.

From http://www.ovt.com/products/sensor.php?id=66 Additionally, OmniVision CMOS image sensors use proprietary sensor technology to improve image quality by reducing or eliminating common lighting/electrical sources of image contamination, such as fixed pattern noise and smearing to produce a clean, ...
by SnowLeopard
Thu Nov 21, 2013 7:47 pm
Forum: Camera board
Topic: mmal_vc_diag ?
Replies: 0
Views: 602

mmal_vc_diag ?

Is there any documentation for /opt/vc/bin/mmal_vc_diag ? From the help output, it seems it might be useful in diagnosing camera problems? /opt/vc/bin/mmal_vc_diag commands help give this help version report VC MMAL server version number stats report VC MMAL statistics reset reset VC MMAL statistics...
by SnowLeopard
Mon Nov 18, 2013 5:55 pm
Forum: Troubleshooting
Topic: SD Card support between revisions
Replies: 7
Views: 1151

Re: SD Card support between revisions

I have an issue with 16 GB class 10 PNY cards that no longer want to boot after a halt, but if I let a debian desktop automount them and then eject, they boot in the Pi. You might want to try that just out of curiosity and see if it affects the behaviour of your cards.
by SnowLeopard
Mon Nov 18, 2013 5:29 pm
Forum: General discussion
Topic: raspicam stopped working
Replies: 6
Views: 1080

Re: raspicam stopped working

What kernel modules are loaded? Someone found an issue with i2c if I remember correctly.
Otherwise, you'll have to revert to older firmware.
by SnowLeopard
Sat Nov 16, 2013 4:47 pm
Forum: Troubleshooting
Topic: Raspberry doesn't start anymore
Replies: 4
Views: 1527

Re: Raspberry doesn't start anymore

What was the last thing you did?
If you put the SD card in another computer, is it recognized okay? Any corruption? What size, class, and brand is it?
by SnowLeopard
Thu Nov 14, 2013 10:14 pm
Forum: Camera board
Topic: Simple time-lapse with raspivid
Replies: 6
Views: 4109

Re: Simple time-lapse with raspivid

If you run out of space the prog shoudl stop, although I'm not sure that works as well as it should. It doesn't stop, but rather starts spitting out mmal error messages Starting video capture mmal: Failed to write buffer data (5739 from 65536)- aborting mmal: Failed to write buffer data (216 from 6...
by SnowLeopard
Wed Nov 13, 2013 10:18 pm
Forum: Camera board
Topic: PoC: Poor man's high framerate full HD motion detection
Replies: 25
Views: 14387

Re: PoC: Poor man's high framerate full HD motion detection

You need a simplified version of Pipe Viewer (http://www.ivarch.com/programs/pv.shtml) which would trigger a script or signal a running process when the measured bitrate changes. Also, while nothing is moving, it would dump the video and only when the bitrate changes would it save the video.
by SnowLeopard
Wed Nov 13, 2013 10:01 pm
Forum: Camera board
Topic: Firmware upgrade stops cam?
Replies: 27
Views: 16414

Re: Firmware upgrade stops cam?

Good job!
At this point, I'm guessing you should post an issue on Git (https://github.com/raspberrypi/firmware) since it is very specific to 1-wire and camera combination. Probably link to this thread to show all the other testing you've gone through.
by SnowLeopard
Tue Nov 12, 2013 10:41 pm
Forum: Troubleshooting
Topic: filesystems and sd device disappear
Replies: 3
Views: 693

Re: filesystems and sd device disappear

To follow-up... I compared the snugness of the Dane-Elec, a PNY, a Kingston microSD adapter, and a no-name microSD adapter, and there is a very slight difference... the non-name adapter and the Dane-Elec card are just a bit looser than the PNY and Kingston adapter. So I wrapped a few layers of plumb...
by SnowLeopard
Tue Nov 12, 2013 8:04 pm
Forum: Camera board
Topic: Firmware upgrade stops cam?
Replies: 27
Views: 16414

Re: Firmware upgrade stops cam?

There are demo apps that use OpenMax instead of MMAL to access the camera. (https://github.com/tjormola/rpi-openmax-demos) I would expect them to behave the same as raspistill/raspivid, but someone should test in case Murphy's Law has come into effect and they do not. $ uname -a && vcgencmd version ...
by SnowLeopard
Tue Nov 12, 2013 7:31 pm
Forum: Camera board
Topic: Permanently turn AWB off
Replies: 125
Views: 36635

Re: Permanently turn AWB off

Figured I'd let those that know better decide if this is useful information: Android v4l2 code relating to the OV5647 sensor. https://bitbucket.org/ayysir/android_kernel_samsung_d2/src/f71f08a40f678e20dd3b5bfa40f78af45fd453bc/drivers/media/video/msm/sensors/ov5647_v4l2.c?at=cm-10.1 Line 308 has a co...
by SnowLeopard
Tue Nov 12, 2013 7:02 pm
Forum: Camera board
Topic: live camera
Replies: 16
Views: 14494

Re: live camera

I thought raspistill is for still shots. Anyway, forget my first question. I want to aim the camera at a bird feeder and look at live video right out of the HDMI connector on the Pi. I'll position the camera so I see a centered scene on the monitor. Can I do this? After that I'll go on to other ste...
by SnowLeopard
Mon Nov 11, 2013 9:37 pm
Forum: Beginners
Topic: problems in my 8gb sd card
Replies: 4
Views: 953

Re: problems in my 8gb sd card

As noted, there are other partitions on the card not being shown. I can see mmcblk0p5 for /boot in your output, so you have at least 5 partitions. lsblk gives nice tree-like view of the partitions on each device, but the "lost space" is probably just different units (base2 vs base10 as DougieLawson ...
by SnowLeopard
Mon Nov 11, 2013 4:59 am
Forum: Camera board
Topic: video quality
Replies: 7
Views: 1388

Re: video quality

Oh ffs! I just had the flickering/interference problem again, but this time for a completely different reason -- faulty power supply! I had not used the power supply I bought with the 2nd Pi yet and in spite of being identical (same model from Newark/Element14), this one gives interference (no wifi)...
by SnowLeopard
Mon Nov 11, 2013 12:41 am
Forum: Camera board
Topic: Firmware upgrade stops cam?
Replies: 27
Views: 16414

Re: Firmware upgrade stops cam?

I think it's set to 128MB but I can't tell you definitely at the moment because I just reflashed my SD card with an older backup image. With this one the camera is working, so no hardware issue here. That must be somewhat of a relief :) What's different between old and new versions? vcgencmd versio...
by SnowLeopard
Sun Nov 10, 2013 9:11 pm
Forum: Camera board
Topic: video quality
Replies: 7
Views: 1388

Re: video quality

That looks very much like what I experienced and described as flickering (http://www.raspberrypi.org/phpBB3/viewt ... 43&t=60404).
Reconnecting the camera solved my problem -- the ribbon cable was not inserted 100% properly before clamping the connector closed.
by SnowLeopard
Sun Nov 10, 2013 6:29 pm
Forum: Troubleshooting
Topic: Raspberry pi is wonderful but...
Replies: 19
Views: 6559

Re: Raspberry pi is wonderful but...

It would be interesting to know exactly how many of the 2M(ish) Rasp's out there have actually had SD card corruption - it would need to be a very large number indeed for it to be a BAD problem. And I don't think it is. That said, any problem is bad to someone who has experienced it. You could arri...
by SnowLeopard
Sun Nov 10, 2013 5:17 pm
Forum: General discussion
Topic: Stepper motor keeps buzzing instead of turning
Replies: 6
Views: 4356

Re: Stepper motor keeps buzzing instead of turning

I haven't tried running a stepper with my Pi yet, but I've run the same motor and controller with on an Arduino and had similar issues. I see three possible reasons (try them independently): 1) incorrect WaitTime (WaitTime = 0.5) try making it shorter (0.2?) 2) incorrect "sequence" used (Seq = Seq1;...
by SnowLeopard
Sun Nov 10, 2013 4:57 pm
Forum: Camera board
Topic: Firmware upgrade stops cam?
Replies: 27
Views: 16414

Re: Firmware upgrade stops cam?

I have that same firmware and the camera is working fine.
Not sure what to suggest... maybe run raspi-config to renable the camera just in case?
Maybe the output of sudo vcdbg syms |grep -i cam will show something useful?
by SnowLeopard
Sat Nov 09, 2013 5:59 pm
Forum: Troubleshooting
Topic: write data on usb drive, file size limit
Replies: 5
Views: 1578

Re: write data on usb drive, file size limit

I gotta tell you: yesterday there was no problem converting such large files. but after formatting the drive it was. I don't know what happened. I set it up like before. I would double check the formatting to be sure something didn't override your NTFS choice. I didn't know avconv came with ffmpeg....
by SnowLeopard
Sat Nov 09, 2013 5:31 pm
Forum: Troubleshooting
Topic: Rpi will not start again after first reboot.
Replies: 13
Views: 4936

Re: Rpi will not start again after first reboot.

What brand(s) of SD cards? Does it fail on reboot (shutdown -r), when trying to boot after a halt (shutdown -h), or in both cases? I have a 32gb PNY card that will not boot after a halt, and shows no errors. Reboots work fine. Inserting it in a debian desktop does some magic (nothing shown in logs a...
by SnowLeopard
Sat Nov 09, 2013 5:49 am
Forum: Troubleshooting
Topic: write data on usb drive, file size limit
Replies: 5
Views: 1578

Re: write data on usb drive, file size limit

I can't find a package for avconv so I'm assuming you've compiled it yourself. The CPPFLAGS in the generated config.mak will show if it has been compiled with support for files >2gb. $ grep CPPFLAGS config.mak DEPCCFLAGS= $(CPPFLAGS) DEPASFLAGS= $(CPPFLAGS) CPPFLAGS= -D_ISOC99_SOURCE -D_FILE_OFFSET_...
by SnowLeopard
Fri Nov 08, 2013 10:22 pm
Forum: Camera board
Topic: flickering issue resolved
Replies: 0
Views: 631

flickering issue resolved

Hi, I recently received a 2nd Pi and camera, but didn't have much time to use the camera as I had to wrestle with a very finicky PNY SD card. I had briefly run raspivid on the console and noticed bad flickering the first Pi didn't have... "I'll deal with later". I just got around to fixing it... the...

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