Timelapse video -- media_profiles.xml

Timelaps stands for "interval shooting", that is, the frame interval during video recording is artificially prolonged. Therefore, a "fast forward" effect will be produced during normal playback. For example, Science and Education documentaries often show the process of germination and flowering of plants. This is the actual use case of timelaps.

Media_profiles.xml In the android mobile phone/system/etc contains the timelaps settings.

Android2.3.4 and Android4.0 are slightly different. Android4.0 adds the delayed recording mode based on Android2.3. Therefore, you need to configure the parameters of the delayed recording mode.

A Typical Dual-camera is divided into two sections to configure the rear camera cameraId = "0" and the front camera cameraId = "1". Here we need to modify the zhi keyword based on the actual camera parameters.

1. EncoderProfile quality meaning video quality,
In Android2.3, two "low" and "high" must be configured. In Android4.0, "P", "P", and "p" are supported by default. To ensure compatibility with previous configurations, extended support for "low" and "high". In addition, Android4.0 supports the delayed recording mode. The keywords are in the normal mode.
Add "timelapse", for example, "timelapse480p ".

2. Video codec
The bitRate encoding format is "h264". Generally, the bit rate of the video file. The higher the bit rate, the clearer the recording file image (video) and the higher the audio quality (audio, however, the larger the disk space occupied
The width, Height, and framerate video file resolution correspond to the frame rate of the width and Height video files. The actual frame rate must be consistent with the frame rate collected by the camera.
SampleRate: the sampling rate of the sound. The higher the sampling rate, the better the sound quality. vice versa.
Number of channels for channels. Generally, it is a single or dual channel.
ImageEncoding quality: the quality of the photo.