This is an implementation of a USB webcam driver for Android which provides a pure Java interface. The goal of this project is to avoid the shortcomings of other available libraries and deliver cross device support for a spectrum of webcam devices with minimal "tuning" requirements. There is native C code under the hood but this is fully abstracted away by the library and binaries for all architectures are provided.
- Dependency free Mavenized Android library with Java only interface
- Support for most USB Host capable Android devices. We require the use of
UsbDeviceConnect.getRawDescriptors()which was added in API 13 (Honeycomb 3.2) so this is the minimum API level. - Support for USB webcam implementations that adhere to the UVC 1.5 classification
- Support for full range of device resolutions (240p and greater)
- Simple integration to 3rd party applications with multiple implementation options dependant on use case requirements.
Due to an unfortunate omission in Android's Java USB Host API, support for isochronous endpoints is non-existant. To get around this shortcoming, this library includes a straight copy of libusb, along with some custom JNI and Java wrappers inspired by SpecLad's repostiory libusb-android. All platform ABIs are built and deployed with the Maven artifact to help with our commitment to cross device support. Use of this artifact is through a simple, straightforward Java interface - no handling of native code or JNI required.
Due to the NDK requirement, building this project will require you to have the Android NDK on your machine. Setup of the NDK is left to the user. See Google's NDK website for more information on this.
After setting up the NDK, you will need to reference it in your version of local.properties by declaring ndk.dir.
Following this, the project should build successfully.