[Android] How to build Android applications on Ubuntu

This manual is written for developing Android application (.apk) based on GStreamer. The manual is successfully evaluated and verified on Ubuntu 16.04 LTS x86_64 distribution. We assume that you dowload the required files into /var/www/gst-android/ folder.

Firewall setting

## Proxy setting to run Android Studio in the office
1. Proxy: File - Settings Appearance & Behavior - System Settings - HTTP Proxy 
2. SSL certificate: File - Settings - Tools - Server Certificates 
3. Check gradle.properties
systemProp.http.proxyHost=10.112.1.184
systemProp.http.proxyPort=8080
systemProp.https.proxyHost=10.112.1.184
systemProp.https.proxyPort=8080

How to run C/C++ NNStreamer application on Android stack w/o License issue

Step 0. gstreamer source ---> cerbero/NDK-xxb --> gst-android prebuilt files 
        dep-packs(88)-----/                          (*.a and *.h)


Step 1. gst-android prebuilt files (w/ header files) ------>  ndk-build  ------>  *.a 
        nnstreamer (*.c)     ---------------------------/     
      
      
Step 2. gst-android: *.a  --------------> ndk-build -----> (libnnstreamer-android.so)  
        nnstreamer : *.a  -------/                                                   
      
Step 3. Application

Step 3.1 CLI (NOW): nnstreamer-example source ------> ndk-build ---> C/C++ CLI app 
             (libnnstreamer-android.so) --------/

Step 3.2 GUI (FUTURE): nnstreamer-example source ----> gradle ---> Java/Kotlin GUI app 
             (libnnstreamer-android.so) ----------/  (Androd-Studio)

Step 4. Performance optimization

Setting of environment variables

Note that Android studio use 'Gradle' instead of 'ndk-build' command to build Android applications.

$ vi ~/.bashrc

## Gstreamr-Android prebuilt binary setting, gst-root-android
export GSTREAMER_ROOT_ANDROID=/var/www/gst-android/gst_root_android

## Android NDK/SDK setting
# export ANDROID_NDK=$HOME/Android/Sdk/ndk-bundle
export ANDROID_NDK=/var/www/gst-android/android-ndk-r16b
export PATH=$ANDROID_NDK:$PATH

export ANDROID_HOME=$HOME/Android/Sdk
export PATH=$PATH:$ANDROID_HOME
export ANDROID_SDK=$HOME/Android/Sdk

Pre-requisites

Download Android NDK (Note that the default compiler of NDK is recently changed from GCC to Clang/LLVM.)
- wget https://dl.google.com/android/repository/android-ndk-r16b-linux-x86_64.zip
  - Compiler: GCC
  - Gstreamr-Android prebuilt binary: gstreamer-1.0-android-universal-1.14.4.tar.bz2
- wget https://dl.google.com/android/repository/android-ndk-r18b-linux-x86_64.zip
  - Compiler: Clang/LLVM
  - Gstreamr-Android prebuilt binary: gstreamer-1.0-android-universal-1.15.1.tar.bz2
Download Android SDK (= Android Studio)
- wget https://dl.google.com/dl/android/studio/ide-zips/3.2.0.26/android-studio-ide-181.5014246-linux.zip
Download Gstreamr-Android prebuilt binary
- firefox https://gstreamer.freedesktop.org/data/pkg/android/

.apk: How to compile Android application source code

https://developer.android.com/ndk/guides/
https://developer.android.com/studio/intro/
https://gstreamer.freedesktop.org/documentation/tutorials/android/index.html
Download example applications for GStreamer from gst-docs.git repository
- git clone https://gitlab.freedesktop.org/gstreamer/gst-docs.git
- commit ba2cddfc17c42432cbb6f1766ea3a25bbb6fa3b0
  - Author: Tim-Philipp Mmuller < tim@centricular.com >
  - Date: Sat Dec 8 23:28:57 2018 +0000
  - Description: Sync version with other modules
Compile source code of your Android application with Android Studio (e.g., ./android-studio/bin/studio.sh)
- File - Sync project with Gradles (Press a circle arrow icon that is located at up-right.)
- Build - Build Bundle/APK - Build APK

Cerbero: How to generate prebuilt binaries for gst-android

You can cross-compile GStreamer for Android from a Linux host using the configuration file 'config/cross-android.cbc'.

Issue:
- https://gitlab.freedesktop.org/gstreamer/cerbero/issues/117 (cross-android-universal.cbc is failed.)
- https://gitlab.freedesktop.org/gstreamer/cerbero/issues/120 (How to use gst-inspect-1.0 on Android platform (ARM64) to print out information about a gstreamer plugin)
How to build for only ARM64/Android:

git clone https://gitlab.freedesktop.org/gstreamer/cerbero
cd cerbero
time ./cerbero-uninstalled  -c config/cross-android-arm64.cbc wipe
time ./cerbero-uninstalled -c config/cross-android-arm64.cbc bootstrap
time ./cerbero-uninstalled -c config/cross-android-arm64.cbc package gstreamer-1.0
ls -al *.tar.bz2

Troubleshooting

Q: Install missing platform(s) and sync project
- A: Just press a link to install required packages.
Q: Failed to update the version of the Android Gradle plugin.
- A: Just press a link to install required packages.
Q: error: undefined reference to 'gst_plugin_coreelements_register'
- A: You need to use 'gradle' of Android studio instead of 'nkd-build' command.
Q: 'gradle' command generates the "/usr/bin/ld.gold: error: cannot open crti.o: ..." error message
- A: Do not install NDK in the Android Studio. Note that you must use NDK r16b (old version) instead of latest version such as NDK r18b/ndk-bundle of Android Studio). Please specify NDK path at "File - Project Structure - SDK Location - Android NDK Location".
Q: Can we generate .apk on the Ubuntu console?
- A: Sure, Please refer to https://developer.android.com/studio/build/building-cmdline. If you have to write just C/C++ source code, please use 'ndk-build' command. If you have to develop JNI-based JAVA GUI applications, you can use 'gradlew' command on Ubuntu console.
- A: Note that ndk-build use jni/Android.mk. However, gradlew use build.gradle file without the existing jni/Android.mk.
```
$ cd gst-docs/examples/tutorials/android/android-tutorial-1
$ ndk-build
$ ../gradlew build -Dorg.gradle.java.home=/var/www/gst-android/android-studio/jre
$ find ./build/output/apk/ -name *.apk
$ adb install -r {path-to-your-bild-folder}/{yourAppName}.apk
$ ../gradlew clean
```
Q: Android emulator on AWS/X86_64 EC2 (Your CPU does not support required features (VT-x or SVM).
- A: You can not basically run the Android emulator on AWS/X86_64 because a AWS instance is running on KVM hypervisor. You must develop on a Linux computer that supports VT-x or SVM. Or use an Android virtual devices based on an ARM system image by using AWS bare metal instance (It provide nested virtualization. Region: US, Virginia North. Type: i3.metal {72 VCPUs, 512 GiB}). However, in this case, it is 10x slower than hardware accelerated virtualization.
- Genymotion Cloud of a market place provides Android operating system on EC2 commercially with the nested virtualization.
  - https://android.stackexchange.com/questions/176017/how-to-run-android-apps-on-amazon-ec2
  - https://docs.genymotion.com/latest/Content/Home.htm
  - https://medium.com/genymobile/android-os-now-available-as-an-amazon-machine-image-72748130436b
```
cat /sys/module/kvm_intel/parameters/nested
egrep -c ‘(vmx|svm)’ /proc/cpuinfo
cat /sys/hypervisor/properties/capabilities
```
Q: Cannot generate armeabi and mips libraries
- A: Officially, NDK r18b does not support out-of-date CPU (armeabi) and unpopular CPU (mips).
Q: Which storage capacity do we have to consider to install all Gstreamer libraries on Android platform?
- A: In case of ARM64, there are 122 static libraries (750MiB) in ./lib/ folder of prebuilt Gstreamer binary.

$ du -sh ./*
472M    ./arm
749M    ./arm64 (The arm64 folder is bigger than the others due to libavcodec.a.)
466M    ./armv7
328M    ./x86
546M    ./x86_64

$ cd arm64/lib/ ; ls -al ./lib/*.a -S
-rw-r--r-- 1 ubuntu ubuntu 170384372 Oct  6 00:37 ./lib/libavcodec.a
-rw-r--r-- 1 ubuntu ubuntu  51669238 Oct  6 00:37 ./lib/libavformat.a
-rw-rw-r-- 1 ubuntu ubuntu  25866618 Oct  6 11:16 ./lib/libvpx.a
-rw-r--r-- 1 ubuntu ubuntu  25405002 Oct  5 22:59 ./lib/libcrypto.a
-rw-r--r-- 1 ubuntu ubuntu  21552530 Oct  5 19:30 ./lib/libgio-2.0.a
-rw-r--r-- 1 ubuntu ubuntu  18967870 Oct  5 19:07 ./lib/libgnustl.a
-rw-r--r-- 1 ubuntu ubuntu  17960942 Oct  5 21:36 ./lib/libgnutls.a
-rw-r--r-- 1 ubuntu ubuntu  16142968 Oct  5 21:54 ./lib/libtag.a
-rw-r--r-- 1 ubuntu ubuntu  13161792 Oct  5 19:42 ./lib/libgstreamer-1.0.a
-rw-r--r-- 1 ubuntu ubuntu  12764148 Oct  5 21:14 ./lib/libhogweed.a
-rw-r--r-- 1 ubuntu ubuntu  12004860 Oct  5 19:47 ./lib/libxml2.a
-rw-r--r-- 1 ubuntu ubuntu  11985916 Oct  5 23:12 ./lib/libwebrtc_audio_processing.a
-rw-r--r-- 1 ubuntu ubuntu  11883410 Oct  5 20:08 ./lib/libcairo.a
-rw-r--r-- 1 ubuntu ubuntu  10043918 Oct  5 20:11 ./lib/libharfbuzz.a
-rw-r--r-- 1 ubuntu ubuntu   9803832 Oct  5 19:30 ./lib/libglib-2.0.a
-rw-r--r-- 1 ubuntu ubuntu   9450392 Oct  5 21:14 ./lib/libnettle.a
-rw-r--r-- 1 ubuntu ubuntu   9251962 Oct  5 22:34 ./lib/libopenh264.a
-rw-r--r-- 1 ubuntu ubuntu   7698100 Oct  5 23:53 ./lib/libx264.a
-rw-r--r-- 1 ubuntu ubuntu   7200908 Oct  5 19:57 ./lib/libfreetype.a
-rw-r--r-- 1 ubuntu ubuntu   6965966 Oct  6 00:49 ./lib/libges-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   6728066 Oct  5 19:54 ./lib/libpixman-1.a
-rw-r--r-- 1 ubuntu ubuntu   6644574 Oct  5 21:41 ./lib/libsoup-2.4.a
-rw-r--r-- 1 ubuntu ubuntu   6435888 Oct  5 21:11 ./lib/libgmp.a
-rw-r--r-- 1 ubuntu ubuntu   5913020 Oct  5 20:53 ./lib/libgstvideo-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   5363006 Oct  5 20:23 ./lib/liborc-0.4.a
-rw-r--r-- 1 ubuntu ubuntu   5307472 Oct  5 22:59 ./lib/libssl.a
-rw-r--r-- 1 ubuntu ubuntu   4847394 Oct  5 23:04 ./lib/libspandsp.a
-rw-r--r-- 1 ubuntu ubuntu   4425746 Oct  5 20:53 ./lib/libgstaudio-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   4291116 Oct  5 19:42 ./lib/libgstbase-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   4208630 Oct  5 22:49 ./lib/libopenjp2.a
-rw-r--r-- 1 ubuntu ubuntu   4197574 Oct  5 20:53 ./lib/libgstgl-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   3924470 Oct  5 20:32 ./lib/libturbojpeg.a
-rw-r--r-- 1 ubuntu ubuntu   3748826 Oct  6 00:02 ./lib/libgstrtspserver-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   3598076 Oct  5 20:26 ./lib/libopus.a
-rw-r--r-- 1 ubuntu ubuntu   3478452 Oct  5 20:32 ./lib/libjpeg.a
-rw-r--r-- 1 ubuntu ubuntu   3362240 Oct  6 00:37 ./lib/libavutil.a
-rw-r--r-- 1 ubuntu ubuntu   3315166 Oct  5 21:00 ./lib/libtiff.a
-rw-r--r-- 1 ubuntu ubuntu   3128890 Oct  5 19:30 ./lib/libgobject-2.0.a
-rw-r--r-- 1 ubuntu ubuntu   3123858 Oct  5 22:40 ./lib/libnice.a
-rw-r--r-- 1 ubuntu ubuntu   2984118 Oct  5 22:47 ./lib/librsvg-2.a
-rw-r--r-- 1 ubuntu ubuntu   2983962 Oct  5 20:21 ./lib/libvisual-0.4.a
-rw-r--r-- 1 ubuntu ubuntu   2825672 Oct  6 00:43 ./lib/libgstvalidate-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   2599216 Oct  5 20:15 ./lib/libpango-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   2598892 Oct  5 21:03 ./lib/libgdk_pixbuf-2.0.a
-rw-r--r-- 1 ubuntu ubuntu   2364684 Oct  5 22:45 ./lib/libcroco-0.6.a
-rw-r--r-- 1 ubuntu ubuntu   2286102 Oct  5 23:50 ./lib/libopencore-amrnb.a
-rw-r--r-- 1 ubuntu ubuntu   2274338 Oct  5 23:42 ./lib/libgstcodecparsers-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   2103000 Oct  5 19:07 ./lib/libiconv.a
-rw-r--r-- 1 ubuntu ubuntu   2094352 Oct  5 20:00 ./lib/libfontconfig.a
-rw-r--r-- 1 ubuntu ubuntu   1981664 Oct  5 19:50 ./lib/libpng16.a
-rw-r--r-- 1 ubuntu ubuntu   1943462 Oct  5 20:53 ./lib/libgsttag-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   1902336 Oct  5 21:46 ./lib/libmp3lame.a
-rw-r--r-- 1 ubuntu ubuntu   1825360 Oct  5 20:53 ./lib/libgstpbutils-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   1755200 Oct  5 21:51 ./lib/libFLAC.a
-rw-r--r-- 1 ubuntu ubuntu   1739550 Oct  5 19:07 ./lib/libsupc++.a
-rw-r--r-- 1 ubuntu ubuntu   1720046 Oct  5 22:26 ./lib/libass.a
-rw-r--r-- 1 ubuntu ubuntu   1715848 Oct  5 21:44 ./lib/libmpg123.a
-rw-r--r-- 1 ubuntu ubuntu   1713782 Oct  5 22:28 ./lib/libfaad.a
-rw-r--r-- 1 ubuntu ubuntu   1712700 Oct  6 00:37 ./lib/libavfilter.a
-rw-r--r-- 1 ubuntu ubuntu   1550450 Oct  5 23:58 ./lib/libjson-glib-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   1491728 Oct  5 20:18 ./lib/libtheora.a
-rw-r--r-- 1 ubuntu ubuntu   1291724 Oct  5 20:08 ./lib/libcairo-script-interpreter.a
-rw-r--r-- 1 ubuntu ubuntu   1230270 Oct  5 19:42 ./lib/libgstcheck-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   1197692 Oct  5 21:48 ./lib/libwavpack.a
-rw-r--r-- 1 ubuntu ubuntu   1179164 Oct  5 20:18 ./lib/libtheoraenc.a
-rw-r--r-- 1 ubuntu ubuntu   1153408 Oct  5 20:28 ./lib/libgraphene-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   1092172 Oct  5 22:43 ./lib/libvo-aacenc.a
-rw-r--r-- 1 ubuntu ubuntu   1090438 Oct  5 20:16 ./lib/libvorbisenc.a
-rw-r--r-- 1 ubuntu ubuntu   1083926 Oct  5 20:53 ./lib/libgstrtp-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   1082830 Oct  5 20:16 ./lib/libvorbis.a
-rw-r--r-- 1 ubuntu ubuntu   1061970 Oct  5 23:42 ./lib/libgstmpegts-1.0.a
-rw-r--r-- 1 ubuntu ubuntu   1020114 Oct  5 19:55 ./lib/libexpat.a
-rw-r--r-- 1 ubuntu ubuntu   1011960 Oct  5 23:42 ./lib/libgstplayer-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    950024 Oct  5 20:15 ./lib/libpangoft2-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    929790 Oct  5 20:53 ./lib/libgstrtsp-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    908916 Oct  5 22:30 ./lib/libkate.a
-rw-rw-r-- 1 ubuntu ubuntu    823938 Oct  5 22:34 ./lib/librtmp.a
-rw-r--r-- 1 ubuntu ubuntu    814008 Oct  5 20:53 ./lib/libgstsdp-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    771352 Oct  5 22:00 ./lib/libdv.a
-rw-r--r-- 1 ubuntu ubuntu    754822 Oct  5 23:50 ./lib/libopencore-amrwb.a
-rw-r--r-- 1 ubuntu ubuntu    741266 Oct  5 19:42 ./lib/libgstnet-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    736098 Oct  5 22:41 ./lib/libSoundTouch.a
-rw-r--r-- 1 ubuntu ubuntu    721910 Oct  5 20:57 ./lib/libspeex.a
-rw-rw-r-- 1 ubuntu ubuntu    695038 Oct  5 22:35 ./lib/libsrtp.a
-rw-r--r-- 1 ubuntu ubuntu    685290 Oct  5 20:33 ./lib/libvorbisidec.a
-rw-r--r-- 1 ubuntu ubuntu    677494 Oct  5 23:42 ./lib/libgstadaptivedemux-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    675388 Oct  6 00:37 ./lib/libswresample.a
-rw-r--r-- 1 ubuntu ubuntu    650426 Oct  5 19:42 ./lib/libgstcontroller-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    557632 Oct  5 20:18 ./lib/libtheoradec.a
-rw-r--r-- 1 ubuntu ubuntu    549410 Oct  5 19:13 ./lib/libz.a
-rw-r--r-- 1 ubuntu ubuntu    543884 Oct  5 20:53 ./lib/libgstapp-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    509322 Oct  5 21:18 ./lib/libtasn1.a
-rw-r--r-- 1 ubuntu ubuntu    461760 Oct  5 20:15 ./lib/libpangocairo-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    429568 Oct  5 23:51 ./lib/libmpeg2.a
-rw-r--r-- 1 ubuntu ubuntu    419054 Oct  5 20:53 ./lib/libgstriff-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    395176 Oct  5 19:12 ./lib/libintl.a
-rw-r--r-- 1 ubuntu ubuntu    391332 Oct  5 22:25 ./lib/libfribidi.a
-rw-r--r-- 1 ubuntu ubuntu    382948 Oct  5 23:42 ./lib/libgstbadvideo-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    374226 Oct  5 22:37 ./lib/libmms.a
-rw-r--r-- 1 ubuntu ubuntu    368366 Oct  5 20:53 ./lib/libgstfft-1.0.a
-rw-rw-r-- 1 ubuntu ubuntu    364442 Oct  5 19:55 ./lib/libbz2.a
-rw-r--r-- 1 ubuntu ubuntu    321046 Oct  5 23:42 ./lib/libgstbadaudio-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    310920 Oct  5 23:42 ./lib/libgstwebrtc-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    265088 Oct  5 22:36 ./lib/libdca.a
-rw-r--r-- 1 ubuntu ubuntu    258380 Oct  5 23:12 ./lib/libsbc.a
-rw-r--r-- 1 ubuntu ubuntu    217960 Oct  5 23:42 ./lib/libgstbasecamerabinsrc-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    205084 Oct  5 20:16 ./lib/libvorbisfile.a
-rw-r--r-- 1 ubuntu ubuntu    197998 Oct  5 23:45 ./lib/liba52.a
-rw-r--r-- 1 ubuntu ubuntu    197406 Oct  5 23:42 ./lib/libgsturidownloader-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    173812 Oct  5 20:23 ./lib/liborc-test-0.4.a
-rw-r--r-- 1 ubuntu ubuntu    170604 Oct  5 23:42 ./lib/libgstinsertbin-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    167976 Oct  5 23:51 ./lib/libmpeg2convert.a
-rw-r--r-- 1 ubuntu ubuntu    163226 Oct  5 23:42 ./lib/libgstphotography-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    145934 Oct  5 23:42 ./lib/libgstisoff-1.0.a
-rw-r--r-- 1 ubuntu ubuntu    142862 Oct  5 19:13 ./lib/libffi.a
-rw-r--r-- 1 ubuntu ubuntu    132154 Oct  5 19:48 ./lib/libogg.a
-rw-r--r-- 1 ubuntu ubuntu    114954 Oct  5 20:08 ./lib/libcairo-gobject.a
-rw-r--r-- 1 ubuntu ubuntu    111578 Oct  5 20:53 ./lib/libgstallocators-1.0.a
-rw-r--r-- 1 ubuntu ubuntu     68582 Oct  5 19:30 ./lib/libgmodule-2.0.a
-rw-r--r-- 1 ubuntu ubuntu     46734 Oct  5 22:30 ./lib/liboggkate.a
-rw-r--r-- 1 ubuntu ubuntu     27928 Oct  5 19:07 ./lib/libcharset.a
-rw-r--r-- 1 ubuntu ubuntu      8518 Oct  5 19:30 ./lib/libgthread-2.0.a

Q: what is the file size of 5 test applications that is released by Gstreamer community
- A: Specified static libraries is selected by Android.mk. Then, ndk-build generates libgstreamer-android.so for a JNI-based Android Java application.

$ ls -al
-rw-rw-r-- 1 ubuntu ubuntu 10494336 12월 12 07:44 android-tutorial-1-debug.apk
-rw-rw-r-- 1 ubuntu ubuntu 22468768 12월 12 07:44 android-tutorial-2-debug.apk
-rw-rw-r-- 1 ubuntu ubuntu 27790487 12월 12 07:44 android-tutorial-3-debug.apk
-rw-rw-r-- 1 ubuntu ubuntu 58496669 12월 12 07:44 android-tutorial-4-debug.apk
-rw-rw-r-- 1 ubuntu ubuntu 58506609 12월 12 07:44 android-tutorial-5-debug.apk
$ mkdir android-tutorial-5-debug ; cd android-tutorial-5-debug
$ unzip ../android-tutorial-5-debug.apk
$ du -sh ./
8.0K    ./AndroidManifest.xml
80K     ./META-INF
636K    ./assets
1.6M    ./classes.dex
117M    ./lib
1.4M    ./res
184K    ./resources.arsc

$ find . -name *.so | xargs ls -alh
-rw-rw-r-- 1  ubuntu 1.1M Dec 31  1979 ./lib/arm64-v8a/libc++_shared.so
-rw-rw-r-- 1  ubuntu  31M Dec 31  1979 ./lib/arm64-v8a/libgstreamer_android.so <----  HERE!!!
-rw-rw-r-- 1  ubuntu  26K Dec 31  1979 ./lib/arm64-v8a/libtutorial-5.so
-rw-rw-r-- 1  ubuntu 642K Dec 31  1979 ./lib/armeabi-v7a/libc++_shared.so
-rw-rw-r-- 1  ubuntu  22M Dec 31  1979 ./lib/armeabi-v7a/libgstreamer_android.so <----  HERE!!!
-rw-rw-r-- 1  ubuntu  30K Dec 31  1979 ./lib/armeabi-v7a/libtutorial-5.so
-rw-rw-r-- 1  ubuntu 1.1M Dec 31  1979 ./lib/x86/libc++_shared.so
-rw-rw-r-- 1  ubuntu  31M Dec 31  1979 ./lib/x86/libgstreamer_android.so <----  HERE!!!
-rw-rw-r-- 1  ubuntu  30K Dec 31  1979 ./lib/x86/libtutorial-5.so
-rw-rw-r-- 1  ubuntu 1.1M Dec 31  1979 ./lib/x86_64/libc++_shared.so
-rw-rw-r-- 1  ubuntu  31M Dec 31  1979 ./lib/x86_64/libgstreamer_android.so <----  HERE!!!
-rw-rw-r-- 1  ubuntu  27K Dec 31  1979 ./lib/x86_64/libtutorial-5.so
$ readelf  -s ./libgstreamer_android.so  | wc -l
30760

Provide feedback

Saved searches

Use saved searches to filter your results more quickly