Video Editing Framework for Android App

A Video Editing Framework that should be able to perform the following: - Take a list of video clips, image and/or audio clip as INPUT - Perform transformation to each of the INPUT - Merge all clips/image/audio into a single video as OUTPUT - Perform transformation to the OUPUT - Compress OUTPUT for upload The transformation for the INPUT is as follows: - For Image, convert into a video clip with specified duration - For Audio, trim the audio with the specified starting and ending time - For Video, - Scale video - Zoom-In/Zoom-Out - Cropping - Panning - Increase/Decrease Framerate - Change Aspect Ratio - Mute/Unmute video clip The transformation for the OUTPUT is as follows: - Apply a watermark at a specified position - Render an Image or Text overlay at a specified position - Apply an image filter to the video (BW, Grayscale, etc.) (should be able to add new filters) Other requirements: The framework should be able to - save the project which can be reopened and edited at anytime - work independent of the UI - perform the process fast - can be written in native Android using Media Framework or written in C++/C using NDK - can run in Android 4.3 devices Note: We have an iOS app that's live in the App Stores. Direct Message me and I can send you the link so that you can try it out. We're looking for an exact duplicate of the iOS app's editing features. Our in-house Android developer can handle the user interface elements. Budget/timeline is negotiable. (Optional) If you have experience in video/media-related Android app, please share them.