How to cross compile Qt with gstreamer

fevancio

firstly, i have cross compiled gstreamer-1.0 and gstreamer-plugin-base-1.0,set PKG_CONFIG_PATH correctly，even -L,-I path in cofigure parameters,there is my configure parameters:

#!/bin/sh
./configure \
-v \
-prefix /usr/local/bin/qte5.12.3 \
-release \
-opensource \
-confirm-license \
-xplatform linux-arm-gnueabi-g++ \
-linuxfb \
-nomake tests  \
-qt-zlib \
-qt-libjpeg \
-qt-libpng \
-qt-freetype \
-qt-pcre \
-no-opengl \
-no-xcb \
-no-sse2 \
-no-openssl \
-no-cups \
-no-dbus \
-no-harfbuzz \
-nomake examples \
-nomake tools \
-skip qtvirtualkeyboard \
-tslib \
-I/usr/local/bin/tslib1.4/include \
-L/usr/local/bin/tslib1.4/lib \
-gstreamer 1.0 \
-I/usr/local/bin/gstreamer/include/gstreamer-1.0 \
-L/usr/local/bin/gstreamer/lib
exit

but error comes like this:

ERROR: Feature 'gstreamer_1_0' was enabled, but the pre-condition 'libs.gstreamer_1_0' failed.

How can i fiexd it?
Thanks

SGaist

Hi,

You should add the -v flag to your configure line so that you can see what is going wrong when the detection of GStreamer is done.

I also recommend to make out of source builds, so that if something goes wrong you can simply nuke the folder and easily start fresh without having to clean the sources before calling configure again.

fevancio

there is configure message about gstreamer.

Checking for GStreamer 1.0... 
Trying source 0 (type pkgConfig) of library gstreamer_1_0 ...
pkg-config use disabled globally.
  => source produced no result.
test config.qtmultimedia_multimedia.libraries.gstreamer_1_0 FAILED

I am puzzled that i have set the path of gstreamer and tslib, tslib was detected succeed but gstreamer failed.

SGaist

Take a look at the test logs, you should see what went wrong.

Otherwise, you can still add the paths needed to thé options of configure.

raven-worx

@fevancio
you might need to add something like this:

export PKG_CONFIG_LIBDIR=/usr/lib/arm-linux-gnueabihf/pkgconfig

If your (armhf) gstreamer pkgconfig is placed somewhere else adapt it of course

fevancio

@raven-worx
i have exported PKG_CONFIG_LIBDIR correctly and add -sysroot to the options of configure, but configure output same error.
But i find some different in conflg.log between tslib and gstreamer.
conflg.log about tslib show needed file 'libts.so'

Checking for tslib... 
Trying source 0 (type inline) of library tslib ...
**None of [libts.so libts.a] found in [] and global paths.**
  => source produced no result.
test config.qtbase_gui.libraries.tslib FAILED

But gstreamer show nothing needed just output 'pkg-config use disabled globally'.

Checking for GStreamer 1.0... 
Trying source 0 (type pkgConfig) of library gstreamer_1_0 ...
pkg-config use disabled globally.
  => source produced no result.
test config.qtmultimedia_multimedia.libraries.gstreamer_1_0 FAILED

Then i tried again with these options of configure:

-I/usr/local/bin/tslib1.4/include \
-L/usr/local/bin/tslib1.4/lib \

-I/usr/local/bin/gstreamer/include/gstreamer-1.0/gst \
-L/usr/local/bin/gstreamer/lib \

This time tslib test succeed but gstreamer still failed.

some informations:
my gstreamer(arm) include gstreamer-1.0 and gstreamer-plugin-base-1.0.
do i need other plugins of gstreamer？

SGaist

Did you check exactly what failed in the test log ?

fevancio

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fevancio

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