Gstremer compatibility with android 10+ devices

[Purva]

Unfortunately I am not able to do this as our app must support android 10
with GStreamer.



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[Olivier Crête-3]

Hi,

There exists a patch to add a ahc2 based source, but it was never completed:

https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/618

Olivier

On Tue, 2020-12-08 at 01:56 -0600, Purva wrote:

Unfortunately I am not able to do this as our app must support android 10

with GStreamer.

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[Purva]

But my application is not working on andrid camera I dont need any camera
suport I want to achive live streaming only.



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[Purva]

Hi,

Thanks for trying to help me out.

 

Here is overall status,

1. Apk is working fine on Android 7
2. Apk is not working on Android 10 with the same setup.
 
I am getting below error in logcat for Android 10,

 

 

./sys/androidmedia/gst-android-hardware-camera.c:1616:_init_classes Failed
to initialize android.hardware.Camera classes: Failed to call Java method:
java.lang.ClassNotFoundException: Didn't find class
"org/freedesktop/gstreamer/androidmedia/GstAhcCallback" on path:
DexPathList[[zip file
"/data/app/org.freedesktop.gstreamer.livestream.livestreaming-1/base.apk"],nativeLibraryDirectories=[/data/app/org.freedesktop.gstreamer.livestream.livestreaming-1/lib/arm64,
/data/app/org.freedesktop.gstreamer.livestream.livestreaming-1/base.apk!/lib/arm64-v8a,
/system/lib64, /vendor/lib64]]

Right now I am not able to identify above classes I don't have library
source .
I am loading library via including system library
 

System.loadLibrary("gstreamer_android");

Is there any way to get this source ? So that I can look up to this library
classes.
 
So just wanted to confirm if I get a source code of this library
"libgstreamer_android" then can I make it compatible with Android 10? Or you
have been trying the same in your share code. Please confirm the same.

I am looking forward to your response. And please do let me know in case of
any query.

Thanks,



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[Jérôme Laheurte-3]

Le 10 déc. 2020 à 05:43, Purva <[hidden email]> a écrit :

Hi,

Thanks for trying to help me out.



Here is overall status,

1. Apk is working fine on Android 7
2. Apk is not working on Android 10 with the same setup.

I am getting below error in logcat for Android 10,





./sys/androidmedia/gst-android-hardware-camera.c:1616:_init_classes Failed
to initialize android.hardware.Camera classes: Failed to call Java method:
java.lang.ClassNotFoundException: Didn't find class
"org/freedesktop/gstreamer/androidmedia/GstAhcCallback" on path:
DexPathList[[zip file
"/data/app/org.freedesktop.gstreamer.livestream.livestreaming-1/base.apk"],nativeLibraryDirectories=[/data/app/org.freedesktop.gstreamer.livestream.livestreaming-1/lib/arm64,
/data/app/org.freedesktop.gstreamer.livestream.livestreaming-1/base.apk!/lib/arm64-v8a,
/system/lib64, /vendor/lib64]]

Ah yes I stumbled upon this too. The androidmedia plugin will not correctly initialize if you don’t include the Ahc callbacks in your Java code. I don’t understant how it could work on Android 7 though, since this happened to me on 7.0. Just add the following classes to your Java project:

GstAhcCallback.java

GstAhsCallback.java

GstAmcOnFrameAvailableListener.java

I can’t find them on my Linux system even though I installed gst-plugins-bad (there’s no gst-android package for Ubuntu, it seems?) but you can find them in git:

https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/tree/master/sys/androidmedia/org/freedesktop/gstreamer/androidmedia

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[Purva]

Hi,

Thanks for trying to help me out.

Here is overall status,

1. Apk is working fine on Android 7
2. Apk is not working on Android 10 with the same setup.
 
I am getting below error in logcat for Android 10,

./sys/androidmedia/gst-android-hardware-camera.c:1616:_init_classes Failed
to initialize android.hardware.Camera classes: Failed to call Java method:
java.lang.ClassNotFoundException: Didn't find class
"org/freedesktop/gstreamer/androidmedia/GstAhcCallback" on path:
DexPathList[[zip file
"/data/app/org.freedesktop.gstreamer.livestream.livestreaming-1/base.apk"],nativeLibraryDirectories=[/data/app/org.freedesktop.gstreamer.livestream.livestreaming-1/lib/arm64,
/data/app/org.freedesktop.gstreamer.livestream.livestreaming-1/base.apk!/lib/arm64-v8a,
/system/lib64, /vendor/lib64]]

Right now I am not able to identify above classes I don't have library
source .
I am loading library via including system library


System.loadLibrary("gstreamer_android");

Is there any way to get this source ? So that I can look up to this library
classes.
 
So just wanted to confirm if I get a source code of this library
"libgstreamer_android" then can I make it compatible with Android 10? Or you
have been trying the same in your share code. Please confirm the same.

I am looking forward to your response. And please do let me know in case of
any query.


Thanks,



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[Purva]

Any idea about how to install this plugin ? I am performing ndk build command
ndk-build mentioning gstreamer source path in android.mk file . And
compiling and creating apk file.

How to apply this plugin ?



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