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Clean up code

feature_fragments
vanitasvitae 5 years ago
parent
commit
179d3b7bd2
Signed by: vanitasvitae
GPG Key ID: 62BEE9264BF17311
  1. 71
      app/src/main/java/de/trac/spherical/parser/PhotoSphereMetadata.java
  2. 86
      app/src/main/java/de/trac/spherical/parser/SphereParser.java

71
app/src/main/java/de/trac/spherical/parser/PhotoSphereMetadata.java

@ -3,44 +3,42 @@ package de.trac.spherical.parser;
import java.util.Date;
/**
* Created by vanitas on 12.09.17.
* XMP Metadata of a PhotoSphere image.
* @see <a href="https://developers.google.com/streetview/spherical-metadata">documentation</a>.
*/
public class PhotoSphereMetadata {
public static final String USE_PANORAMA_VIEWER = "GPano:UsePanoramaViewer";
public static final String CAPTURE_SOFTWARE = "GPano:CaptureSoftware";
public static final String STITCHING_SOFTWARE = "GPano:StitchingSoftware";
public static final String PROJECTION_TYPE = "GPano:ProjectionType";
public static final String POSE_HEADING_DEGREES = "GPano:PoseHeadingDegrees";
public static final String POSE_PITCH_DEGREES = "GPano:PosePitchDegrees";
public static final String POSE_ROLL_DEGREES = "GPano:PoseRollDegrees";
public static final String INITIAL_VIEW_HEADING_DEGREES = "GPano:InitialViewHeadingDegrees";
public static final String INITIAL_VIEW_PITCH_DEGREES = "GPano:InitialViewPitchDegrees";
public static final String INITIAL_VIEW_ROLL_DEGREES = "GPano:InitialViewRollDegrees";
public static final String INITIAL_HORIZONTAL_POV_DEGREES = "GPano:InitialHorizontalFOVDegrees";
public static final String FIRST_PHOTO_DATE = "GPano:FirstPhotoDate";
public static final String LAST_PHOTO_DATE = "GPano:LastPhotoDate";
public static final String SOURCE_PHOTOS_COUNT = "GPano:SourcePhotosCount";
public static final String EXPOSURE_LOCK_USED = "GPano:ExposureLockUsed";
public static final String CROPPED_AREA_IMAGE_WIDTH_PIXELS = "GPano:CroppedAreaImageWidthPixels";
public static final String CROPPED_AREA_IMAGE_HEIGHT_PIXELS = "GPano:CroppedAreaImageHeightPixels";
public static final String FULL_PANO_WIDTH_PIXELS = "GPano:FullPanoWidthPixels";
public static final String FULL_PANO_HEIGHT_PIXELS = "GPano:FullPanoHeightPixels";
public static final String CROPPED_AREA_LEFT_PIXELS = "GPano:CroppedAreaLeftPixels";
public static final String CROPPED_AREA_TOP_PIXELS = "GPano:CroppedAreaTopPixels";
public static final String INITIAL_CAMERA_DOLLY = "GPano:InitialCameraDolly";
private static final String pf = "=\"";
enum TYPE {
static final String USE_PANORAMA_VIEWER = "GPano:UsePanoramaViewer";
static final String CAPTURE_SOFTWARE = "GPano:CaptureSoftware";
static final String STITCHING_SOFTWARE = "GPano:StitchingSoftware";
static final String PROJECTION_TYPE = "GPano:ProjectionType";
static final String POSE_HEADING_DEGREES = "GPano:PoseHeadingDegrees";
static final String POSE_PITCH_DEGREES = "GPano:PosePitchDegrees";
static final String POSE_ROLL_DEGREES = "GPano:PoseRollDegrees";
static final String INITIAL_VIEW_HEADING_DEGREES = "GPano:InitialViewHeadingDegrees";
static final String INITIAL_VIEW_PITCH_DEGREES = "GPano:InitialViewPitchDegrees";
static final String INITIAL_VIEW_ROLL_DEGREES = "GPano:InitialViewRollDegrees";
static final String INITIAL_HORIZONTAL_POV_DEGREES = "GPano:InitialHorizontalFOVDegrees";
static final String FIRST_PHOTO_DATE = "GPano:FirstPhotoDate";
static final String LAST_PHOTO_DATE = "GPano:LastPhotoDate";
static final String SOURCE_PHOTOS_COUNT = "GPano:SourcePhotosCount";
static final String EXPOSURE_LOCK_USED = "GPano:ExposureLockUsed";
static final String CROPPED_AREA_IMAGE_WIDTH_PIXELS = "GPano:CroppedAreaImageWidthPixels";
static final String CROPPED_AREA_IMAGE_HEIGHT_PIXELS = "GPano:CroppedAreaImageHeightPixels";
static final String FULL_PANO_WIDTH_PIXELS = "GPano:FullPanoWidthPixels";
static final String FULL_PANO_HEIGHT_PIXELS = "GPano:FullPanoHeightPixels";
static final String CROPPED_AREA_LEFT_PIXELS = "GPano:CroppedAreaLeftPixels";
static final String CROPPED_AREA_TOP_PIXELS = "GPano:CroppedAreaTopPixels";
static final String INITIAL_CAMERA_DOLLY = "GPano:InitialCameraDolly";
enum ProjectionType {
equirectangular
}
private boolean usePanoramaViewer = true;
private String captureSoftware = null;
private String stitichingSoftware = null;
private TYPE projectionType = TYPE.equirectangular;
private String stitchingSoftware = null;
private ProjectionType projectionType = ProjectionType.equirectangular;
private Float poseHeadingDegrees = null;
private float posePitchDegrees = 0;
private float poseRollDegrees = 0;
@ -68,11 +66,11 @@ public class PhotoSphereMetadata {
this.captureSoftware = captureSoftware;
}
public void setStitichingSoftware(String stitichingSoftware) {
this.stitichingSoftware = stitichingSoftware;
public void setStitchingSoftware(String stitchingSoftware) {
this.stitchingSoftware = stitchingSoftware;
}
public void setProjectionType(TYPE projectionType) {
public void setProjectionType(ProjectionType projectionType) {
this.projectionType = projectionType;
}
@ -149,7 +147,6 @@ public class PhotoSphereMetadata {
}
public boolean isUsePanoramaViewer() {
return usePanoramaViewer;
}
@ -157,11 +154,11 @@ public class PhotoSphereMetadata {
return captureSoftware;
}
public String getStitichingSoftware() {
return stitichingSoftware;
public String getStitchingSoftware() {
return stitchingSoftware;
}
public TYPE getProjectionType() {
public ProjectionType getProjectionType() {
return projectionType;
}

86
app/src/main/java/de/trac/spherical/parser/SphereParser.java

@ -3,15 +3,11 @@ package de.trac.spherical.parser;
import android.util.Log;
import java.io.EOFException;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PushbackInputStream;
import java.math.BigInteger;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.Locale;
@ -37,7 +33,7 @@ import static de.trac.spherical.parser.PhotoSphereMetadata.POSE_ROLL_DEGREES;
import static de.trac.spherical.parser.PhotoSphereMetadata.PROJECTION_TYPE;
import static de.trac.spherical.parser.PhotoSphereMetadata.SOURCE_PHOTOS_COUNT;
import static de.trac.spherical.parser.PhotoSphereMetadata.STITCHING_SOFTWARE;
import static de.trac.spherical.parser.PhotoSphereMetadata.TYPE;
import static de.trac.spherical.parser.PhotoSphereMetadata.ProjectionType;
import static de.trac.spherical.parser.PhotoSphereMetadata.USE_PANORAMA_VIEWER;
/**
@ -45,7 +41,7 @@ import static de.trac.spherical.parser.PhotoSphereMetadata.USE_PANORAMA_VIEWER;
*/
public class SphereParser {
public static final String TAG = "SphereParser";
private static final String TAG = "PhoSphePars";
private static final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'hh:mm:ss.SSS'Z'", Locale.US);
@ -56,23 +52,23 @@ public class SphereParser {
* 3 E1
* 4 Length EXIF (n)
* 5 Length EXIF (n)
* 6 <exif>
* 6 <exif> (length n-2)
* n+4 </exif>
* n+5 FF
* n+6 E1
* n+7 Length XML (m)
* n+7 Length XML (m)
* n+8 <xml>
* n+8 <xml> (length m-2)
* n+8+m</xml>
* n+5 <xml>
* ? </xml>
*/
public static final byte[] FFE1 = new byte[] {
private static final byte[] FFE1 = new byte[] {
(byte) 0xFF, (byte) 0xE1
};
public static final byte[] FFD8FFE1 = new byte[] {
private static final byte[] FFD8FFE1 = new byte[] {
(byte) 0xFF, (byte) 0xD8, (byte) 0xFF, (byte) 0xE1
};
@ -86,7 +82,8 @@ public class SphereParser {
//HEADER
byte[] r = new byte[FFD8FFE1.length];
int i = inputStream.read(r);
if (i != FFD8FFE1.length || !Arrays.equals(FFD8FFE1, r)) {
throwIfUnexpectedEOF(i, r.length);
if (!Arrays.equals(FFD8FFE1, r)) {
Log.d(TAG, "Unexpected Image header: " + hex(r) + " (" + hex(FFD8FFE1) + " expected)");
return null;
}
@ -94,18 +91,18 @@ public class SphereParser {
//EXIF Length
r = new byte[2];
i = inputStream.read(r);
if (i != 2) {
throw new EOFException("Unexpected EOF!");
}
throwIfUnexpectedEOF(i, r.length);
int exifLen = integer(r);
//Skip EXIF header
r = new byte[exifLen - 2];
i = inputStream.read(r);
throwIfUnexpectedEOF(i, r.length);
//XML Header
r = new byte[2];
i = inputStream.read(r);
throwIfUnexpectedEOF(i, r.length);
if (!Arrays.equals(FFE1, r)) {
Log.d(TAG, "Image does not contain XML data.");
return null;
@ -113,16 +110,12 @@ public class SphereParser {
r = new byte[2];
i = inputStream.read(r);
if (i != 2) {
throw new EOFException("Unexpected EOF!");
}
throwIfUnexpectedEOF(i, r.length);
int xmlLen = integer(r);
byte[] xml = new byte[xmlLen - 2];
i = inputStream.read(xml);
if (i != xml.length) {
throw new EOFException("Unexpected EOF!");
}
throwIfUnexpectedEOF(i, r.length);
return new String(xml);
}
@ -130,9 +123,9 @@ public class SphereParser {
public static PhotoSphereMetadata parse(String xmp) {
PhotoSphereMetadata meta = new PhotoSphereMetadata();
meta.setUsePanoramaViewer(parseBoolean(USE_PANORAMA_VIEWER, xmp, true));
meta.setCaptureSoftware(getStringValue(CAPTURE_SOFTWARE, xmp));
meta.setStitichingSoftware(getStringValue(STITCHING_SOFTWARE, xmp));
meta.setProjectionType(parseType(PROJECTION_TYPE, xmp, TYPE.equirectangular));
meta.setCaptureSoftware(parseString(CAPTURE_SOFTWARE, xmp));
meta.setStitchingSoftware(parseString(STITCHING_SOFTWARE, xmp));
meta.setProjectionType(parseType(PROJECTION_TYPE, xmp, ProjectionType.equirectangular));
meta.setPoseHeadingDegrees(parseFloat(POSE_HEADING_DEGREES, xmp, null));
meta.setPosePitchDegrees(parseFloat(POSE_PITCH_DEGREES, xmp, 0f));
meta.setPoseRollDegrees(parseFloat(POSE_ROLL_DEGREES, xmp, 0f));
@ -154,7 +147,13 @@ public class SphereParser {
return meta;
}
public static String getStringValue(String key, String xmp) {
private static void throwIfUnexpectedEOF(int actual, int expected) throws EOFException {
if (actual != expected) {
throw new EOFException("Unexpected EOF!");
}
}
private static String parseString(String key, String xmp) {
if (!xmp.contains(key)) {
return null;
}
@ -165,13 +164,13 @@ public class SphereParser {
return value;
}
public static Integer parseInteger(String key, String xmp, Integer defaultValue) {
String value = getStringValue(key, xmp);
private static Integer parseInteger(String key, String xmp, Integer defaultValue) {
String value = parseString(key, xmp);
return value == null ? defaultValue : Integer.parseInt(value);
}
public static Float parseFloat(String key, String xmp, Float defaultValue) {
String value = getStringValue(key, xmp);
private static Float parseFloat(String key, String xmp, Float defaultValue) {
String value = parseString(key, xmp);
if (value == null) {
return defaultValue;
} else {
@ -179,18 +178,18 @@ public class SphereParser {
}
}
public static Boolean parseBoolean(String key, String xmp, Boolean defaultValue) {
String value = getStringValue(key, xmp);
private static Boolean parseBoolean(String key, String xmp, Boolean defaultValue) {
String value = parseString(key, xmp);
return value == null ? defaultValue : Boolean.parseBoolean(value);
}
public static TYPE parseType(String key, String xmp, TYPE defaultValue) {
String value = getStringValue(key, xmp);
return value == null ? defaultValue : TYPE.equirectangular;
private static ProjectionType parseType(String key, String xmp, ProjectionType defaultValue) {
String value = parseString(key, xmp);
return value == null ? defaultValue : ProjectionType.equirectangular;
}
public static Date parseDate(String key, String xmp, Date defaultValue) {
String value = getStringValue(key, xmp);
private static Date parseDate(String key, String xmp, Date defaultValue) {
String value = parseString(key, xmp);
try {
return value == null ? defaultValue : dateFormat.parse(value);
} catch (ParseException e) {
@ -198,23 +197,6 @@ public class SphereParser {
}
}
public static void main(String[] args) throws IOException {
File file = new File(args[0]);
System.out.println(getXMLContent(new FileInputStream(file)));
}
private static void unread(ArrayList<Byte> list, PushbackInputStream pb) throws IOException {
for (int i = list.size() - 1; i >= 0; i--) {
pb.unread(list.get(i));
}
}
private static void append(ArrayList<Byte> list, byte[] array, int r) {
for (int i = 0; i < r; i++) {
list.add(array[i]);
}
}
private static String hex(byte[] b) {
return new BigInteger(b).toString(16);
}

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