Added id3 chapter image reader
This commit is contained in:
ByteHamster
parent
5caaaa9e5a
commit
a980281d47
@ -1,11 +1,17 @@
|
||||
package de.danoeh.antennapod.core.util.id3reader;
|
||||
|
||||
import android.graphics.Bitmap;
|
||||
import android.graphics.BitmapFactory;
|
||||
import android.util.Base64;
|
||||
import android.util.Log;
|
||||
import de.danoeh.antennapod.core.feed.Chapter;
|
||||
import de.danoeh.antennapod.core.feed.ID3Chapter;
|
||||
import de.danoeh.antennapod.core.preferences.UserPreferences;
|
||||
import de.danoeh.antennapod.core.util.id3reader.model.FrameHeader;
|
||||
import de.danoeh.antennapod.core.util.id3reader.model.TagHeader;
|
||||
|
||||
import java.io.File;
|
||||
import java.io.FileOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.net.URLDecoder;
|
||||
@ -15,110 +21,158 @@ import java.util.List;
|
||||
public class ChapterReader extends ID3Reader {
|
||||
private static final String TAG = "ID3ChapterReader";
|
||||
|
||||
private static final String FRAME_ID_CHAPTER = "CHAP";
|
||||
private static final String FRAME_ID_TITLE = "TIT2";
|
||||
private static final String FRAME_ID_CHAPTER = "CHAP";
|
||||
private static final String FRAME_ID_TITLE = "TIT2";
|
||||
private static final String FRAME_ID_LINK = "WXXX";
|
||||
|
||||
private List<Chapter> chapters;
|
||||
private ID3Chapter currentChapter;
|
||||
private List<Chapter> chapters;
|
||||
private ID3Chapter currentChapter;
|
||||
|
||||
@Override
|
||||
public int onStartTagHeader(TagHeader header) {
|
||||
chapters = new ArrayList<>();
|
||||
Log.d(TAG, "header: " + header);
|
||||
return ID3Reader.ACTION_DONT_SKIP;
|
||||
}
|
||||
@Override
|
||||
public int onStartTagHeader(TagHeader header) {
|
||||
chapters = new ArrayList<>();
|
||||
Log.d(TAG, "header: " + header);
|
||||
return ID3Reader.ACTION_DONT_SKIP;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int onStartFrameHeader(FrameHeader header, InputStream input)
|
||||
throws IOException, ID3ReaderException {
|
||||
Log.d(TAG, "header: " + header);
|
||||
switch (header.getId()) {
|
||||
case FRAME_ID_CHAPTER:
|
||||
if (currentChapter != null) {
|
||||
if (!hasId3Chapter(currentChapter)) {
|
||||
chapters.add(currentChapter);
|
||||
Log.d(TAG, "Found chapter: " + currentChapter);
|
||||
currentChapter = null;
|
||||
}
|
||||
}
|
||||
StringBuilder elementId = new StringBuilder();
|
||||
readISOString(elementId, input, Integer.MAX_VALUE);
|
||||
char[] startTimeSource = readBytes(input, 4);
|
||||
long startTime = ((int) startTimeSource[0] << 24)
|
||||
| ((int) startTimeSource[1] << 16)
|
||||
| ((int) startTimeSource[2] << 8) | startTimeSource[3];
|
||||
currentChapter = new ID3Chapter(elementId.toString(), startTime);
|
||||
skipBytes(input, 12);
|
||||
return ID3Reader.ACTION_DONT_SKIP;
|
||||
case FRAME_ID_TITLE:
|
||||
if (currentChapter != null && currentChapter.getTitle() == null) {
|
||||
StringBuilder title = new StringBuilder();
|
||||
readString(title, input, header.getSize());
|
||||
currentChapter
|
||||
.setTitle(title.toString());
|
||||
Log.d(TAG, "Found title: " + currentChapter.getTitle());
|
||||
@Override
|
||||
public int onStartFrameHeader(FrameHeader header, InputStream input)
|
||||
throws IOException, ID3ReaderException {
|
||||
Log.d(TAG, "header: " + header);
|
||||
switch (header.getId()) {
|
||||
case FRAME_ID_CHAPTER:
|
||||
if (currentChapter != null) {
|
||||
if (!hasId3Chapter(currentChapter)) {
|
||||
chapters.add(currentChapter);
|
||||
Log.d(TAG, "Found chapter: " + currentChapter);
|
||||
currentChapter = null;
|
||||
}
|
||||
}
|
||||
StringBuilder elementId = new StringBuilder();
|
||||
readISOString(elementId, input, Integer.MAX_VALUE);
|
||||
char[] startTimeSource = readChars(input, 4);
|
||||
long startTime = ((int) startTimeSource[0] << 24)
|
||||
| ((int) startTimeSource[1] << 16)
|
||||
| ((int) startTimeSource[2] << 8) | startTimeSource[3];
|
||||
currentChapter = new ID3Chapter(elementId.toString(), startTime);
|
||||
skipBytes(input, 12);
|
||||
return ID3Reader.ACTION_DONT_SKIP;
|
||||
case FRAME_ID_TITLE:
|
||||
if (currentChapter != null && currentChapter.getTitle() == null) {
|
||||
StringBuilder title = new StringBuilder();
|
||||
readString(title, input, header.getSize());
|
||||
currentChapter
|
||||
.setTitle(title.toString());
|
||||
Log.d(TAG, "Found title: " + currentChapter.getTitle());
|
||||
|
||||
return ID3Reader.ACTION_DONT_SKIP;
|
||||
}
|
||||
break;
|
||||
case FRAME_ID_LINK:
|
||||
if (currentChapter != null) {
|
||||
// skip description
|
||||
int descriptionLength = readString(null, input, header.getSize());
|
||||
StringBuilder link = new StringBuilder();
|
||||
readISOString(link, input, header.getSize() - descriptionLength);
|
||||
try {
|
||||
String decodedLink = URLDecoder.decode(link.toString(), "UTF-8");
|
||||
currentChapter.setLink(decodedLink);
|
||||
Log.d(TAG, "Found link: " + currentChapter.getLink());
|
||||
} catch (IllegalArgumentException iae) {
|
||||
Log.w(TAG, "Bad URL found in ID3 data");
|
||||
}
|
||||
return ID3Reader.ACTION_DONT_SKIP;
|
||||
}
|
||||
break;
|
||||
case FRAME_ID_LINK:
|
||||
if (currentChapter != null) {
|
||||
// skip description
|
||||
int descriptionLength = readString(null, input, header.getSize());
|
||||
StringBuilder link = new StringBuilder();
|
||||
readISOString(link, input, header.getSize() - descriptionLength);
|
||||
try {
|
||||
String decodedLink = URLDecoder.decode(link.toString(), "UTF-8");
|
||||
currentChapter.setLink(decodedLink);
|
||||
Log.d(TAG, "Found link: " + currentChapter.getLink());
|
||||
} catch (IllegalArgumentException iae) {
|
||||
Log.w(TAG, "Bad URL found in ID3 data");
|
||||
}
|
||||
|
||||
return ID3Reader.ACTION_DONT_SKIP;
|
||||
}
|
||||
break;
|
||||
case "APIC":
|
||||
Log.d(TAG, header.toString());
|
||||
break;
|
||||
}
|
||||
return ID3Reader.ACTION_DONT_SKIP;
|
||||
}
|
||||
break;
|
||||
case "APIC":
|
||||
Log.d(TAG, header.toString());
|
||||
StringBuilder mime = new StringBuilder();
|
||||
int read = readString(mime, input, header.getSize());
|
||||
byte type = (byte) input.read();
|
||||
// $00 Other
|
||||
// $01 32x32 pixels 'file icon' (PNG only)
|
||||
// $02 Other file icon
|
||||
// $03 Cover (front)
|
||||
// $04 Cover (back)
|
||||
// $05 Leaflet page
|
||||
// $06 Media (e.g. label side of CD)
|
||||
// $07 Lead artist/lead performer/soloist
|
||||
// $08 Artist/performer
|
||||
// $09 Conductor
|
||||
// $0A Band/Orchestra
|
||||
// $0B Composer
|
||||
// $0C Lyricist/text writer
|
||||
// $0D Recording Location
|
||||
// $0E During recording
|
||||
// $0F During performance
|
||||
// $10 Movie/video screen capture
|
||||
// $11 A bright coloured fish
|
||||
// $12 Illustration
|
||||
// $13 Band/artist logotype
|
||||
// $14 Publisher/Studio logotype
|
||||
read++;
|
||||
StringBuilder description = new StringBuilder();
|
||||
read += readISOString(description, input, header.getSize()); // Should use encoding from first string
|
||||
|
||||
return super.onStartFrameHeader(header, input);
|
||||
}
|
||||
|
||||
private boolean hasId3Chapter(ID3Chapter chapter) {
|
||||
for (Chapter c : chapters) {
|
||||
if (((ID3Chapter) c).getId3ID().equals(chapter.getId3ID())) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
Log.d(TAG, "Found apic: " + mime + "," + description);
|
||||
if (mime.toString().equals("-->")) {
|
||||
// Data contains a link to a picture
|
||||
StringBuilder link = new StringBuilder();
|
||||
readISOString(link, input, header.getSize());
|
||||
Log.d(TAG, "link: " + link);
|
||||
} else {
|
||||
// Data contains the picture
|
||||
byte[] imageData = readBytes(input, header.getSize() - read);
|
||||
|
||||
@Override
|
||||
public void onEndTag() {
|
||||
if (currentChapter != null) {
|
||||
if (!hasId3Chapter(currentChapter)) {
|
||||
chapters.add(currentChapter);
|
||||
}
|
||||
}
|
||||
Log.d(TAG, "Reached end of tag");
|
||||
if (chapters != null) {
|
||||
for (Chapter c : chapters) {
|
||||
Log.d(TAG, "chapter: " + c);
|
||||
}
|
||||
}
|
||||
}
|
||||
Bitmap bmp = BitmapFactory.decodeByteArray(imageData, 0, imageData.length);
|
||||
try (FileOutputStream out = new FileOutputStream(new File(UserPreferences.getDataFolder(null),
|
||||
"chapter" + chapters.size() + ".jpg"))) {
|
||||
bmp.compress(Bitmap.CompressFormat.PNG, 100, out); // bmp is your Bitmap instance
|
||||
// PNG is a lossless format, the compression factor (100) is ignored
|
||||
} catch (IOException e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
}
|
||||
return ID3Reader.ACTION_DONT_SKIP;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onNoTagHeaderFound() {
|
||||
Log.d(TAG, "No tag header found");
|
||||
super.onNoTagHeaderFound();
|
||||
}
|
||||
return super.onStartFrameHeader(header, input);
|
||||
}
|
||||
|
||||
public List<Chapter> getChapters() {
|
||||
return chapters;
|
||||
}
|
||||
private boolean hasId3Chapter(ID3Chapter chapter) {
|
||||
for (Chapter c : chapters) {
|
||||
if (((ID3Chapter) c).getId3ID().equals(chapter.getId3ID())) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onEndTag() {
|
||||
if (currentChapter != null) {
|
||||
if (!hasId3Chapter(currentChapter)) {
|
||||
chapters.add(currentChapter);
|
||||
}
|
||||
}
|
||||
Log.d(TAG, "Reached end of tag");
|
||||
if (chapters != null) {
|
||||
for (Chapter c : chapters) {
|
||||
Log.d(TAG, "chapter: " + c);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void onNoTagHeaderFound() {
|
||||
Log.d(TAG, "No tag header found");
|
||||
super.onNoTagHeaderFound();
|
||||
}
|
||||
|
||||
public List<Chapter> getChapters() {
|
||||
return chapters;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -37,7 +37,7 @@ public class ID3Reader {
|
||||
ID3ReaderException {
|
||||
int rc;
|
||||
readerPosition = 0;
|
||||
char[] tagHeaderSource = readBytes(input, HEADER_LENGTH);
|
||||
char[] tagHeaderSource = readChars(input, HEADER_LENGTH);
|
||||
tagHeader = createTagHeader(tagHeaderSource);
|
||||
if (tagHeader == null) {
|
||||
onNoTagHeaderFound();
|
||||
@ -47,7 +47,7 @@ public class ID3Reader {
|
||||
onEndTag();
|
||||
} else {
|
||||
while (readerPosition < tagHeader.getSize()) {
|
||||
FrameHeader frameHeader = createFrameHeader(readBytes(input, HEADER_LENGTH));
|
||||
FrameHeader frameHeader = createFrameHeader(readChars(input, HEADER_LENGTH));
|
||||
if (checkForNullString(frameHeader.getId())) {
|
||||
break;
|
||||
}
|
||||
@ -84,11 +84,10 @@ public class ID3Reader {
|
||||
}
|
||||
|
||||
/**
|
||||
* Read a certain number of bytes from the given input stream. This method
|
||||
* Read a certain number of chars from the given input stream. This method
|
||||
* changes the readerPosition-attribute.
|
||||
*/
|
||||
char[] readBytes(InputStream input, int number)
|
||||
throws IOException, ID3ReaderException {
|
||||
char[] readChars(InputStream input, int number) throws IOException, ID3ReaderException {
|
||||
char[] header = new char[number];
|
||||
for (int i = 0; i < number; i++) {
|
||||
int b = input.read();
|
||||
@ -102,6 +101,20 @@ public class ID3Reader {
|
||||
return header;
|
||||
}
|
||||
|
||||
byte[] readBytes(InputStream input, int number) throws IOException, ID3ReaderException {
|
||||
byte[] header = new byte[number];
|
||||
for (int i = 0; i < number; i++) {
|
||||
int b = input.read();
|
||||
readerPosition++;
|
||||
if (b != -1) {
|
||||
header[i] = (byte) b;
|
||||
} else {
|
||||
throw new ID3ReaderException("Unexpected end of stream");
|
||||
}
|
||||
}
|
||||
return header;
|
||||
}
|
||||
|
||||
/**
|
||||
* Skip a certain number of bytes on the given input stream. This method
|
||||
* changes the readerPosition-attribute.
|
||||
@ -168,7 +181,7 @@ public class ID3Reader {
|
||||
protected int readString(StringBuilder buffer, InputStream input, int max) throws IOException,
|
||||
ID3ReaderException {
|
||||
if (max > 0) {
|
||||
char[] encoding = readBytes(input, 1);
|
||||
char[] encoding = readChars(input, 1);
|
||||
max--;
|
||||
|
||||
if (encoding[0] == ENCODING_UTF16_WITH_BOM || encoding[0] == ENCODING_UTF16_WITHOUT_BOM) {
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user