DEPRECATED

This project was developed as part of my Java class's assignment. It is no longer updated or supported.

Video Clipper

Android video manipulation app

Support

I am very open to receiving help for this open source project. If you have any suggestions, critique or questions feel free to contact me!

License

This project is GNU GPL software. See COPYING for the complete license.

Usage (developers)

When first compiling this library you need to complete a few steps:

1. Download ffmpeg library

    git clone https://github.com/FFmpeg/FFmpeg app/src/main/jni/ffmpeg/
   

2. Build ffmpeg

    ./app/src/main/jni/build_ffmpeg.sh
   

3. Compile libvc.so. Uncomment a block of code in app/build.gradle:

    // Debug tasks
    /*	// Disable implicit Android.mk creation for all app variants
        // Custom tasks that compile libraries with ndk-build using the customized makefile
        //noinspection GroovyAssignabilityCheck
        task ndkBuildDebug(type: Exec) {
            // Fetch NDK directory from local.properties
            Properties properties = new Properties()
            properties.load(project.rootProject.file('local.properties').newDataInputStream())
            def ndkDir = properties.getProperty('ndk.dir')
            println("DEBUG")
            commandLine "$ndkDir/ndk-build",
    		        "NDK_DEBUG=0",
    				"-B", // Force a rebuild
    				'NDK_PROJECT_PATH=build/intermediates/ndk',
    				'NDK_LIBS_OUT=src/main/jniLibs',
    		        'APP_BUILD_SCRIPT=src/main/jni/Android.mk',
    		        'NDK_APPLICATION_MK=src/main/jni/Application.mk'
        }
        tasks.whenTaskAdded { task ->
            if (task.name == 'compileDebugJava') {
    	        task.dependsOn ndkBuildDebug
            }
    	}
    */
    
   

   Note: This code needs to be uncommented only when:

   • You're compiling for the first time (and lib still doesn't exist)
   • You've made changes in the native source code, e.g. vc.c

Functionality

Currently the app can accomplish the following:

• Parse a chosen video file
• Display the parsed streams and their attributes in a tree fashion
• Concatenate multiple videos (re-size and re-encode if necessary)
• Select, play and concat different audio streams

Expansion

Future improvements of this app are highly dependent on the functionality of FFmpeg and FFprobe libraries which are the basis of this tool. Currently planned video modifications include:

• Resize
• Crop
• Cut
• Image overlay
• Addition of extra audio streams
• Pre-installed transitions