[Interest] Video Filters on Android

René Hansen renehh at gmail.com
Wed Apr 4 10:54:01 CEST 2018

I never got that specific example to work, but assuming you're building
with the Android NDK, you can include:

#include <GLES2/gl2.h>
#include <EGL/egl.h>

Which will give you access to *eglGetCurrentContext()*.

I'm using the r10e ndk, since that's what works with Qt at the moment. GLES
v3 is available in toolchain v21:

$ ls ~/Code/Android/android-ndk-r10e//platforms/android-21/arch-arm/usr/lib/
crtbegin_dynamic.o      libGLESv2.so            libdl.so
crtbegin_so.o           libGLESv3.so            libjnigraphics.so
crtbegin_static.o       libOpenMAXAL.so         liblog.so
crtend_android.o        libOpenSLES.so          libm.a
crtend_so.o             libandroid.so           libm.so
libEGL.so               libc.a                  libm_hard.a             rs
libGLESv1_CM.so         libc.so                 libmediandk.so

If you want to link against OpenCL, you still need to pull a
*libOpenCL.so* from
an actual device though.


On Wed, 4 Apr 2018 at 01:52 Jason H <jhihn at gmx.com> wrote:

> http://blog.qt.io/blog/2015/03/20/introducing-video-filters-in-qt-multimedia/
> announced video filter support, and hardware accelerated too!
> Code:
> http://code.qt.io/cgit/qt/qtmultimedia.git/tree/examples/multimedia/video/qmlvideofilter_opencl
> I'm trying to get it running on Android, but I'm going down a rabbit hole
> with OpenCL 2.0 and EGL 3.2. I have been hacking on it but I don't know
> where EGLContext is declared.
> Had anyone gotten this running in Android?
> Thanks!
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> Interest mailing list
> Interest at qt-project.org
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