Yes and no. When using one of the supported codecs above, the built in hardware
acceleration is used on the device to minimize CPU load (while playback the CPU load
increses between 3% and 7% on a single core CPU).
BUT there are some things to keep in mind: When running on a single core CPU it is more
likely that playback of multimedia has an influence on the system. Especially tight CAN
timings may be a problem (e.g. sending out a CAN message every 10ms might not be
completely precise anymore). We strongly recommend that the project is tested on the
device while playing back media with a special look at CAN (send and receive) and script
timings.
When running on a device with a dual or quad core CPU it is less likely that media
playback has a negative influence on the overall performance.
What happens when the page is changed while playback?
It depends on what kind of media is played back:
If a video is played back when exiting the page with the multimedia player, the playback will
be stopped automatically.
If only audio (music) is played back when exiting the page with the multimedia player, the
playback will continue. If the audio playback shall be stopped when the page is switched,
you have to stop the media player manually (e.g. via a multimediaCommand JavaScript
call onPageExit).
Why is the volume so low?
Please have a look at the volume FAQ section .
How can I control playback in JavaScript?
Use the multimediaCommand function in JavaScript to control the multimedia player and
it's playlist.
How can I switch the video to fullscreen and how to exit fullscreen mode?
Use the multimediaCommand function in JavaScript with the command string "toggle
fullscreen" to enable or disable fullscreen video. Fullscreen mode is automatically disabled
again as soon as the user touches the screen or presses the escape key.
How can the display operator play his own media files?
It is possible to add media files that are stored on an USB device to the playlist of the
MultimediPlayer. To do this JavaScript needs to be used. Here is an example script that
adds all files from the folder "music" on an usb stick to the playlist:
//check if USB stick is inserted:
var usbInserted = getVariableValue("@USBMemStatus");
if (usbInserted != 0)
{
//USB stick present, get the mount path
var usbPath = getVariableValue("@USBMountPath");
//add "music" folder to the usb path
usbPath = usbPath + "/music";
//remove all files from playlist
multimediaCommand(34, "clear playlist");
//now add all files from the music directory to the
playlist
multimediaCommand(34, "add directory to playlist",
usbPath);
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