Advantech SG-1103 Manual do Utilizador descarregar pdf (Página 28)

ROM-5420 User Manual 20

3.1.15 Audio Test

Execute the following commands to run the Audio demo application on ROM-5420.

#cd /unit_tests

#aplay audio8k16S.wav

Then you can hear the music from speaker/head-sets.

3.1.16 Photo Demo Test

Execute the following commands to run the Photo demo application on ROM-5420.

#cd /tools

#./fbv Advantech.jpg

Then you can see the photo demo on the default display screen.

3.1.17 Camera Input Test

Execute the following commands to run the camera demo application on ROM-5420.

3.1.17.1 Preview

#gst-launch mfw_v4lsrc ! mfw_v4lsink

3.1.17.2 Capture

#gst-launch mfw_v4lsrc num-buffers=1 ! jpegenc ! filesink loca-

tion=/tools/snapshot.jpg

3.1.17.3 PView picture

#VSALPHA=1 gst-launch filesrc location=/tools/snapshot.jpg ! jpegdec

! imagefreeze ! mfw_isink

3.1.17.4 PRecord video

#gst-launch mfw_v4lsrc ! queue ! vpuenc codec=6 ! matroskamux !

filesink location=/tools/output.avi sync=false

3.1.17.5 PPlay video

#gst-launch playbin2 uri=file:///tools/output.avi video-

sink="mfw_v4lsink device=/dev/video17"

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Advantech SG-1103 Manual do Utilizador Página 28