Camera2-Video

A simple Android wrapper for interfacing with the new Camera2 API for video capture.

Usage

Setup

For an example, check out the sample app included.

Firstly, create a Fragment and extend com.wesley.camera2.fragment.Camera2Fragment. You will be required to override the following methods:

1. getTextureResource - this needs to return an ID for an com.wesley.camera2.widget.AutoFitTextureView in your layout.
2. getVideoFile - this needs to return a File for the MediaRecorder to save to (ie: where the video will be saved to).

Start and Stop Recording

To start recording, simply call startRecordingVideo() and to stop, use stopRecordingVideo(). Once stopped, the video is saved to disk and the MediaRecorder is setup again to start a new recording. To check if the app is currently recording a video or not, a method isRecording() is provided.

Customisation

The new Camera2 API has greatly changed how to interface with the camera. This library doesn't provide complete customisation, but it does allow override a few setup methods:

1. setUpCaptureRequestBuilder(CaptureRequest.Builder builder) - the default setup only does builder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO); , however, you can override setUpCaptureRequestBuilder and build the CaptureRequest yourself.
2. protected void setUpMediaRecorder() throws IOException - care needs to be taken when overriding this method. If you need to customise any MediaRecorder settings, overriding this method will allow that. Currently, the encoding frame rate is set to 30, and the bit rate to 1600

With Marshmallow, permissions are granted (or denied) at runtime. This library takes care of all that, including the rationale prompt (a dialog explaining why you need permission to use the feature - only shown if the user continuously denies permission). To customise the rationale message, during onCreate() simply call

setRationaleMessage(String message)

or

setRationaleMessage(int messageResource)

Error Handling

All exceptions related to file handling and camera setup are caught. Default behaviour is to Log the exception. If you need to manually handle these, override one or more of the following:

• void onCameraException(CameraAccessException cae);
• void onNullPointerException(NullPointerException npe);
• void onInterruptedException(InterruptedException ie);
• void onIOException(IOException ioe);
• void onConfigurationFailed();

Download

Either download using Gradle:

compile 'com.wesleyelliott:camera2-video:0.0.2'

or Maven:

dependency>
<groupId>com.wesleyelliott</groupId>
<artifactId>camera2-video</artifactId>
<version>0.0.2</version>
<type>pom</type> </dependency>