``Hi ,
Thank you for trying. I'm working on it. Now I have some problems. Can we discuss them together?
I am currently building with the following versions
NDK: 21.4.7075529
Gstreamer: 1.22.7
SDK: 32

During this build, I ran into problems with “undefined reference to gst_photography_get_type' and ”undefined reference to gst_photography_set_autofocus' in function `gst_native_set_auto_focus'。

I'm stuck here and don't know how to proceed.
This is my Android.mk and Application.mk and build. Gradle
Please help me! Thank you!

Android.mk:
`LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_CFLAGS := -DGST_USE_UNSTABLE_API

设置源文件

LOCAL_MODULE :=android_camera
LOCAL_SRC_FILES := android_camera.c dummy.cpp
LOCAL_SHARED_LIBRARIES := gstreamer_android

添加 GStreamer 库

LOCAL_LDLIBS += -landroid -ldl -llog
include $(BUILD_SHARED_LIBRARY)

GST_V4L2_USE_LIBV4L2 := 1

设置你的 GStreamer 路径

GSTREAMER_ROOT_PATH := D:\CodeRepo\AndroidProject\gstreamer-1.0-android-universal-1.22.7

ifndef GSTREAMER_ROOT_ANDROID
$(error GSTREAMER_ROOT_ANDROID is not defined!)
endif

ifeq ($(TARGET_ARCH_ABI),armeabi)
GSTREAMER_ROOT := $(GSTREAMER_ROOT_ANDROID)/arm
else ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
GSTREAMER_ROOT := $(GSTREAMER_ROOT_ANDROID)/armv7
else ifeq ($(TARGET_ARCH_ABI),arm64-v8a)
GSTREAMER_ROOT := $(GSTREAMER_ROOT_ANDROID)/arm64
else ifeq ($(TARGET_ARCH_ABI),x86)
GSTREAMER_ROOT := $(GSTREAMER_ROOT_ANDROID)/x86
else ifeq ($(TARGET_ARCH_ABI),x86_64)
GSTREAMER_ROOT := $(GSTREAMER_ROOT_ANDROID)/x86_64
else
$(error Target arch ABI not supported: $(TARGET_ARCH_ABI))
endif

GSTREAMER_NDK_BUILD_PATH := $(GSTREAMER_ROOT)/share/gst-android/ndk-build/

include $(GSTREAMER_NDK_BUILD_PATH)/plugins.mk
GSTREAMER_PLUGINS := $(GSTREAMER_PLUGINS_CORE) $(GSTREAMER_PLUGINS_ENCODING) androidmedia videofilter openh264 flac opensles opengl $(GSTREAMER_PLUGINS_NET)

GSTREAMER_EXTRA_DEPS := gstreamer-video-1.0 gstreamer-player-1.0 gio-2.0 glib-2.0
GSTREAMER_EXTRA_LIBS := -liconv
include $(GSTREAMER_NDK_BUILD_PATH)/gstreamer-1.0.mk`

Application.mk:
APP_ABI = armeabi armeabi-v7a arm64-v8a x86 x86_64 APP_STL = c++_shared

build.gradle:
`plugins {
id 'com.android.application'
}

android {
compileSdk 32

defaultConfig {
    applicationId "com.huracan.androidgstreamerapp"
    minSdk 21
    targetSdk 32
    versionCode 1
    versionName "1.0"

    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"


    externalNativeBuild {
        ndkBuild {
            def gstRoot

            if (project.hasProperty('gstAndroidRoot'))
                gstRoot = project.gstAndroidRoot
            else
                gstRoot = System.env.GSTREAMER_ROOT_ANDROID

            if (gstRoot == null)
                throw new GradleException('GSTREAMER_ROOT_ANDROID must be set, or "gstAndroidRoot" must be defined in your gradle.properties in the top level directory of the unpacked universal GStreamer Android binaries')

            arguments "NDK_APPLICATION_MK=jni/Application.mk", "GSTREAMER_JAVA_SRC_DIR=src", "GSTREAMER_ROOT_ANDROID=$gstRoot", "GSTREAMER_ASSETS_DIR=src/assets"

            targets "android_camera"

            // All archs except MIPS and MIPS64 are supported
            abiFilters  'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
        }
    }
}

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
}
externalNativeBuild {
    ndkBuild {
        path file('jni/Android.mk')
    }
}
ndkVersion '21.4.7075529'
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

}

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.3.0'
implementation 'com.google.android.material:material:1.4.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}`

How to play this streamed video using rtsp url from gstreamer android tutorial 4 or any other android network players like vlc etc