nuttx-apps/examples/camera/README.md
2020-07-25 01:01:51 -07:00

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# Examples / `camera` Camera Snapshot
This sample is implemented as `camera` command on NuttX Shell. The synopsys of
the command is as below.
```
nsh> camera ([-jpg]) ([capture num])
-jpg : this option is set for storing JPEG file into a strage.
: If this option isn't set capturing raw YUV422 data in a file.
: raw YUV422 is default.
capture num : this option instructs number of taking pictures.
: 10 is default.
```
Storage will be selected automatically based on the available storage option.
Execution example:
```
nsh> camera
nximage_listener: Connected
nximage_initialize: Screen resolution (320,240)
Take 10 pictures as YUV file in /mnt/sd0 after 5000 mili-seconds.
After finishing taking pictures, this app will be finished after 10000 mili-seconds.
Expier time is pasted.
Start capturing...
FILENAME:/mnt/sd0/VIDEO001.YUV
FILENAME:/mnt/sd0/VIDEO002.YUV
FILENAME:/mnt/sd0/VIDEO003.YUV
FILENAME:/mnt/sd0/VIDEO004.YUV
FILENAME:/mnt/sd0/VIDEO005.YUV
FILENAME:/mnt/sd0/VIDEO006.YUV
FILENAME:/mnt/sd0/VIDEO007.YUV
FILENAME:/mnt/sd0/VIDEO008.YUV
FILENAME:/mnt/sd0/VIDEO009.YUV
FILENAME:/mnt/sd0/VIDEO010.YUV
Finished capturing...
Expier time is pasted.
nximage_listener: Lost server connection: 117
```