Difference between revisions of "Multi camera system operation"
From ElphelWiki
| Line 2: | Line 2: | ||
Example for 2 cameras (2 X-Cams) - list comma-separated addresses in the GET line: | Example for 2 cameras (2 X-Cams) - list comma-separated addresses in the GET line: | ||
http://192.168.0.39/multicam/?ip=192.168.0.39,192.168.0.38 | http://192.168.0.39/multicam/?ip=192.168.0.39,192.168.0.38 | ||
| + | * record button - starts recording on raw paritions (camera internal) | ||
| + | * snapshot button - saves a zip archive to host pc | ||
==Download footage== | ==Download footage== | ||
| Line 10: | Line 12: | ||
Device Start LBA Current LBA End LBA | Device Start LBA Current LBA End LBA | ||
/dev/sda2 12500992 38196200 250068992 | /dev/sda2 12500992 38196200 250068992 | ||
| − | ===scripts for downloading=== | + | ===scripts for downloading from internal SSD (via eSATA)=== |
| + | * Get [https://git.elphel.com/Elphel/elphel-tools-x393 int_ssd_download.py]: | ||
| + | ~$ python3 int_ssd_download.py -h | ||
| + | # Download 100GB from each | ||
| + | ~$ python3 int_ssd_download.py -c root@192.168.0.39 -n 10 /path | ||
| + | ~$ python3 int_ssd_download.py -c root@192.168.0.38 -n 10 /path | ||
| + | The script automatically creates a UID (/path/UID) directory, where UID - ID of the SSD | ||
| + | |||
| + | ===scripts for extraction=== | ||
| + | * Get [https://git.elphel.com/Elphel/eyesis4pi-393-gui/blob/master/footage_downloader/split_mov_jp4.php split_mov_jp4.php]. It takes channel shift as argv[1] when splitting. Example: | ||
| + | ~$ cd /path/UID-of-192.168.0.39 | ||
| + | ~$ /path-to-script/split_mov_jp4.php 0 | ||
| + | ~$ cd /path/UID-of-192.168.0.38 | ||
| + | ~$ /path-to-script/split_mov_jp4.php 4 | ||
[[Category:393]] | [[Category:393]] | ||
Revision as of 16:25, 10 August 2018
Contents
Recording
Example for 2 cameras (2 X-Cams) - list comma-separated addresses in the GET line:
http://192.168.0.39/multicam/?ip=192.168.0.39,192.168.0.38
- record button - starts recording on raw paritions (camera internal)
- snapshot button - saves a zip archive to host pc
Download footage
- /dev/sda1 - ext4
- /dev/sda2 - raw
raw partition write pointer position
root@elphel393:~# cat /mnt/sda1/camogm.disk Device Start LBA Current LBA End LBA /dev/sda2 12500992 38196200 250068992
scripts for downloading from internal SSD (via eSATA)
- Get int_ssd_download.py:
~$ python3 int_ssd_download.py -h # Download 100GB from each ~$ python3 int_ssd_download.py -c root@192.168.0.39 -n 10 /path ~$ python3 int_ssd_download.py -c root@192.168.0.38 -n 10 /path
The script automatically creates a UID (/path/UID) directory, where UID - ID of the SSD
scripts for extraction
- Get split_mov_jp4.php. It takes channel shift as argv[1] when splitting. Example:
~$ cd /path/UID-of-192.168.0.39 ~$ /path-to-script/split_mov_jp4.php 0 ~$ cd /path/UID-of-192.168.0.38 ~$ /path-to-script/split_mov_jp4.php 4
