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+# Video processing library based on FFmpeg
+## Main purpose
+Main purpose of this library is to allow developers to embed FFmpeg into their application with literally one line of code 
+in gradle.build. Using native code in Java in general and in Android environment especially always related to some problems. 
+Hopefully VideoKit will resolve some of them.
+
+## Setup
+Basic setup just add following line of code to yout gradle.build file:    
+`compile 'com.infullmobile.android:videokit-release:1.0'`   
+Also, if you haven't use inFullMobile public maven in your project before, don't forget to add following line to your 
+repositories:   
+`maven { url 'https://maven.infullmobile.com/public' }`     
+That's pretty much all. 
+
+## Example usage
+Module sample is showing usage of VideoKit. Please note, that VideoKit is basically invoking FFmpeg main() with CLI arguments 
+so you will use commands almost like you use standard FFmpeg on Linux or Windows or MacOS.    
+Well, let me show you some code:
+```
+        final VideoKit videoKit = new VideoKit();
+        final Command command = videoKit.createCommand()
+                .overwriteOutput()
+                .addInputPath(path)
+                .addOutputPath(path + POSTFIX)
+                .addCustomCommand("-ss 1 -t 3")
+                .copyVideoCodec()
+                .addExperimentalFlag()
+                .build();
+```
+Command is basically set of instructions for FFmpeg. Please note, that order in which you adding instructions in 
+CommandBuilder is quite important. Sometimes, when you mess up order, FFmpeg will not recognize command and end up
+with error. After you've built a command you should execute it: either with execute() or you can pass it to 
+AsyncCommandExecutor.    
+Please note, that:   
+`command.execute();`   
+will be executed on thread on which it was called, while:    
+`new AsyncCommandExecutor(command, this).execute();`    
+will be executed in background thread and you have to provide implementation of ProcessingListener to get result of 
+processing either in onSuccess (you will get path to processed file here) or onFailure (you will get error code here).
+
+## Other functions
+VideoKit is also providing logging mechanism for FFmpeg. You can set logging level by calling function:    
+`videoKit.setLogLevel(level)`    
+where level is enum which consists of:
+```
+NO_LOG
+ERRORS_ONLY
+FULL
+```
+
+## Error codes 
+I've tryed to make library as debuggable as it even possible, taking in account that we're working with native code. 
+If you getting failures from VideoKit and log in not really helpfull try to look into *docs* folder in *ffmpeg_return_codes*
+file. In this file you not only have list of possible return codes with which FFMpeg can exit, but also file and number of 
+line of code in which exit was called.    
+Version of FFmpeg is 2.8.4 and changed sources can be found over here:    
+[Development Kit](https://github.com/IljaKosynkin/FFmpeg-Development-Kit)
+
+## License
+FFmpeg is licensed under LGPL:    
+[License](https://ffmpeg.org/legal.html)   
+**This software uses libraries from the FFmpeg project under the LGPLv2.1**