I formatted the drive using ip_address/format_disk.php. This created sda1
> and raw sda2. Then I used mkfs.ext4 /dev/sda2 to format the 2nd partition.
> I made a directory sda2 in mnt and mounted /dev/sda2 there. I can copy
> files from /mnt/sda2 using scp. Is this the right way? I'm not sure why I
> need 2 partitions.

2 partitions are used for 'fast recording'. Not having a file system on
sda2 partition saves some time to perform writes, and also should reduce
the wearing out of SSD. And ext4 sda1 partition is intended to store
information where to start/continue recording from (camogm.disk).

You don't have to use it if normal recording works. In this case you can
have only a single partition - use fdisk to repartition.
But if you increase the image quality normal recording might be too slow -
you can test this - in camogm gui click on the 'show buffers' and run

When I use the Apple Quicktime Movie format, I get videos of the frames
> from each port alternating. Is there a way to separate them so I get a
> video for each port?
Camogm does not have an option to store different ports into separate
files. Though it's possible to implement but will probably slow down
You can separate them on your PC.
split_mov.php which I mentioned before - does splitting and naming files as
<timstamp>_<port>.<ext> Then they can be combined back to movs with ffmpeg,
for example.

For image format, COLOR is set as 0. Does that matter?
JP4 is a kind of a raw image format we implemented - see this article

> By the way, I was curious if it's possible to use 14 MPix sensors with
> nand?
Yes. I didn't include the device tree for nand for 14MPx. Now it's

Best regards,
Oleg Dzhimiev
Electronics Engineer
phone: +1 801 783 5555 x124
Elphel, Inc.
Support-list mailing list

Reply via email to