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CameraInfoAPI.java
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CameraInfoAPI.java
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package com.termux.api.apis;
import android.content.Context;
import android.content.Intent;
import android.graphics.ImageFormat;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CameraMetadata;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.util.JsonWriter;
import android.util.Size;
import android.util.SizeF;
import com.termux.api.TermuxApiReceiver;
import com.termux.api.util.ResultReturner;
import com.termux.api.util.ResultReturner.ResultJsonWriter;
import com.termux.shared.logger.Logger;
public class CameraInfoAPI {
private static final String LOG_TAG = "CameraInfoAPI";
public static void onReceive(TermuxApiReceiver apiReceiver, final Context context, Intent intent) {
Logger.logDebug(LOG_TAG, "onReceive");
ResultReturner.returnData(apiReceiver, intent, new ResultJsonWriter() {
@Override
public void writeJson(JsonWriter out) throws Exception {
final CameraManager manager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
out.beginArray();
for (String cameraId : manager.getCameraIdList()) {
out.beginObject();
out.name("id").value(cameraId);
CameraCharacteristics camera = manager.getCameraCharacteristics(cameraId);
out.name("facing");
int lensFacing = camera.get(CameraCharacteristics.LENS_FACING);
switch (lensFacing) {
case CameraMetadata.LENS_FACING_FRONT:
out.value("front");
break;
case CameraMetadata.LENS_FACING_BACK:
out.value("back");
break;
default:
out.value(lensFacing);
}
StreamConfigurationMap map = camera.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
out.name("jpeg_output_sizes").beginArray();
for (Size size : map.getOutputSizes(ImageFormat.JPEG)) {
out.beginObject().name("width").value(size.getWidth()).name("height").value(size.getHeight()).endObject();
}
out.endArray();
out.name("focal_lengths").beginArray();
for (float f : camera.get(CameraCharacteristics.LENS_INFO_AVAILABLE_FOCAL_LENGTHS))
out.value(f);
out.endArray();
out.name("auto_exposure_modes").beginArray();
int[] flashModeValues = camera.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_MODES);
for (int flashMode : flashModeValues) {
switch (flashMode) {
case CameraMetadata.CONTROL_AE_MODE_OFF:
out.value("CONTROL_AE_MODE_OFF");
break;
case CameraMetadata.CONTROL_AE_MODE_ON:
out.value("CONTROL_AE_MODE_ON");
break;
case CameraMetadata.CONTROL_AE_MODE_ON_ALWAYS_FLASH:
out.value("CONTROL_AE_MODE_ON_ALWAYS_FLASH");
break;
case CameraMetadata.CONTROL_AE_MODE_ON_AUTO_FLASH:
out.value("CONTROL_AE_MODE_ON_AUTO_FLASH");
break;
case CameraMetadata.CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE:
out.value("CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE");
break;
case CameraMetadata.CONTROL_AE_MODE_ON_EXTERNAL_FLASH:
out.value("CONTROL_AE_MODE_ON_EXTERNAL_FLASH");
break;
default:
out.value(flashMode);
}
}
out.endArray();
SizeF physicalSize = camera.get(CameraCharacteristics.SENSOR_INFO_PHYSICAL_SIZE);
out.name("physical_size").beginObject().name("width").value(physicalSize.getWidth()).name("height")
.value(physicalSize.getHeight()).endObject();
out.name("capabilities").beginArray();
for (int capability : camera.get(CameraCharacteristics.REQUEST_AVAILABLE_CAPABILITIES)) {
switch (capability) {
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE:
out.value("backward_compatible");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE:
out.value("burst_capture");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_CONSTRAINED_HIGH_SPEED_VIDEO:
out.value("constrained_high_speed_video");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT:
out.value("depth_output");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA:
out.value("logical_multi_camera");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING:
out.value("manual_post_processing");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR:
out.value("manual_sensor");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_MONOCHROME:
out.value("monochrome");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_MOTION_TRACKING:
out.value("motion_tracking");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING:
out.value("private_reprocessing");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_RAW:
out.value("raw");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS:
out.value("read_sensor_settings");
break;
case CameraMetadata.REQUEST_AVAILABLE_CAPABILITIES_YUV_REPROCESSING:
out.value("yuv_reprocessing");
break;
default:
out.value(capability);
}
}
out.endArray();
out.endObject();
}
out.endArray();
}
});
}
}