• The sizes will be sorted by increasing pixel area (width x height). If several resolutions have the same area, they will be sorted by increasing width.
• The aspect ratio of the largest thumbnail size will be same as the aspect ratio of largest JPEG output size in android.scaler.availableStreamConfigurations. The largest size is defined as the size that has the largest pixel area in a given size list.
• Each output JPEG size in android.scaler.availableStreamConfigurations will have at least one corresponding size that has the same aspect ratio in availableThumbnailSizes, and vice versa.
• All non-(0, 0) sizes will have non-zero widths and heights. This key is available on all devices.

List of JPEG thumbnail sizes for CaptureRequest.JpegThumbnailSize supported by this camera device.

This list will include at least one non-zero resolution, plus (0,0) for indicating no thumbnail should be generated.

Below condiditions will be satisfied for this size list:

[Android Documentation]