Category:QtMediaHub::ST7540: Difference between revisions

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= Running QtMediaHub on ST7540 =
#Redirect [[Running QtMediaHub on ST7540]]
== Assumptions ==
 
# Qt 4.8.0 is configured, built and installed as per [http://wiki.qt.io/ST7540 ST7540]
# Can run STM's "Test-Tool" on reference board to test OpenGL ES 2.0 and media playback.
# "QTDIR" and "PATH" environment variables are set to use Qt 4.8.0 cross compiled and installed for ST7540 in your build terminal
 
== Getting Source ==
 
You can get the latest source code from gitorious [https://gitorious.org/qtmediahub https://gitorious.org/qtmediahub].
You can use [http://gitorious.org/qtmediahub/qtmediahub/blobs/master/scripts/sync-to-head sync-to-head] to update your sources to latest version
 
Note that we are in the process of moving the git repositories to the qt.io.
 
== Multimedia Playback Support ==
 
QMH uses "platform specific media player application" (in ST's case it is the Test-Tool) to have media playback facility.
This is achieved using "out of process integration" which means:-
 
## Start "Test-Tool" in background and redirect a FIFO ("/tmp/stapp_fifo2") to "Test-Tool"s STDIN
## Redirect "Test-Tool"'s STDOUT and STDERROR to a normal file ("/tmp/stapp_log")
## QMH issues commands to "platform specific media player application" to another FIFO ("/tmp/stapp_fifo")
## Have an arrangement to transfer data from FIF0 ("/tmp/stapp_fifo") to FIFO ("/tmp/stapp_fifo2")
## And QMH collects the feedback by reading "platform specific media player application"'s STDOUT and STDERROR
 
This is achieved using following shell (commands in a init) script on ST7540 reference board.
 
<code>
cd /root/app
mkdir -p /dev/fusion
 
export MODULES_INSTALL_DIR=/root/app/modules
export LD_LIBRARY_PATH=/lib:/usr/lib:/root/app/modules:$LD_LIBRARY_PATH
 
rm -f /tmp/stapp_fifo /tmp/stapp_fifo2 /tmp/stapp_log
mkfifo /tmp/stapp_fifo
mkfifo /tmp/stapp_fifo2
 
source /root/initapp.sh && cd /root/app/ && ./bsptestapp_dvb </tmp/stapp_fifo2 >/tmp/stapp_log 2>&1 &
sleep 30
while [ 1 ] ; do cat /tmp/stapp_fifo >/tmp/stapp_fifo2 ; done &
sleep 30
echo '' > /tmp/stapp_fifo
sleep 30
</code>
 
ST7540 specific media control integration can be found in files [http://gitorious.org/qtmediahub/qtmediahub-core/blobs/master/src/mediaplayer/mediaplayerST7540.h mediaplayerST7540.h] and [http://gitorious.org/qtmediahub/qtmediahub-core/blobs/master/src/mediaplayer/mediaplayerST7540.cpp mediaplayerST7540.cpp]
 
== Configuring ==
 
Use " -media-backend ST7540" configure option to enable multimedia playback capability of QMH
 
<code>
cd /path/to/qtmediahub/
/path/to/qtmediahub/configure -media-backend ST7540
</code>
 
== Building ==
 
Build QMH as follows
 
<code>
cd /path/to/qtmediahub/
make
</code>
 
== Installing ==
 
As installation of QMH on ST7540 reference board copy entire "qtmediahub" directory so that its path is exactly same as that on build machine.
 
== Running QMH on Qt 4.8 (QWS) ==
 
Setup QTDIR, QWS_KEYBOARD, QWS_MOUSE_PROTO and LD_LIBRARY_PATH environment variables as follows
 
<code>
export QTDIR=/path/to/installed/qt-everywhere-opensource-src-4.8.0/
export QWS_KEYBOARD="LinuxInput:/dev/input/event0" //Use appropriate device node
export QWS_MOUSE_PROTO="LinuxInput:/dev/input/event1" //Use appropriate device node
export LD_LIBRARY_PATH=${QTDIR}/lib/:${LD_LIBRARY_PATH}
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:"/path/to/qtmediahub/qtmediahub-core/hub/lib/"
</code>
 
Rum QMH as follows to use OpenGL ES 2.0
 
<code>
cd /path/to/qtmediahub/
/path/to/qtmediahub/qtmediahub-core/hub/bin/qtmediahub -qws -keyboard -mouse -display eglnullws:size=1280x720 -skin=confluence -overlayMode=true -opengl-usage=true -opengl-viewport=true -opengl-format-hack=false
</code>
 
Rum QMH as follows to use DirectFB
 
<code>
cd /path/to/qtmediahub/
/path/to/qtmediahub/qtmediahub-core/hub/bin/qtmediahub -qws -display directfb -skin=delphin -overlayMode=true -opengl-usage=false -opengl-viewport=false -opengl-format-hack=false
</code>
 
Rum QMH as follows to use Linux Frame Buffer
 
<code>
cd /path/to/qtmediahub/
/path/to/qtmediahub/qtmediahub-core/hub/bin/qtmediahub -qws -keyboard -mouse -display linuxfb -skin=confluence— -overlayMode=true -opengl-usage=false -opengl-viewport=false -opengl-format-hack=false
</code>

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