Revision d907eaa7
Added by Andreas Kohlbecker almost 13 years ago
| cdmlib-model/src/main/java/eu/etaxonomy/cdm/model/media/MediaUtils.java | ||
|---|---|---|
| 1 | 1 |
package eu.etaxonomy.cdm.model.media; |
| 2 | 2 |
|
| 3 | 3 |
import java.util.ArrayList; |
| 4 |
import java.util.Collection; |
|
| 5 |
import java.util.Collections; |
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import java.util.HashSet; |
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import java.util.Iterator; |
|
| 4 | 8 |
import java.util.List; |
| 5 | 9 |
import java.util.NoSuchElementException; |
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import java.util.Set; |
|
| 6 | 11 |
import java.util.SortedMap; |
| 7 | 12 |
import java.util.TreeMap; |
| 8 | 13 |
import java.util.regex.Matcher; |
| ... | ... | |
| 12 | 17 |
|
| 13 | 18 |
public class MediaUtils {
|
| 14 | 19 |
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private static final Logger logger = Logger.getLogger(MediaUtils.class); |
|
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|
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/** |
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* @param mimeTypeRegexes |
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* @param size |
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* @param widthOrDuration |
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* @param height |
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* @return |
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* |
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* |
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*/ |
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public static MediaRepresentation findBestMatchingRepresentation(Media media, Integer size, Integer height, Integer widthOrDuration, String[] mimeTypes){
|
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// find best matching representations of each media |
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SortedMap<Integer, MediaRepresentation> prefRepresentations |
|
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= orderMediaRepresentations(media, mimeTypes, size, widthOrDuration, height); |
|
| 30 |
try {
|
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// take first one and remove all other representations |
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MediaRepresentation prefOne = prefRepresentations.get(prefRepresentations.firstKey()); |
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|
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return prefOne; |
|
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|
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} catch (NoSuchElementException nse) {
|
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/* IGNORE */ |
|
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} |
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return null; |
|
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} |
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|
|
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/** |
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* @param mediaList |
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* @param mimeTypes |
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* @param sizeTokens |
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* @param widthOrDuration |
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* @param height |
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* @param size |
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* @return |
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*/ |
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public static List<Media> findPreferredMedia(List<Media> mediaList, |
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String[] mimeTypes, String[] sizeTokens, Integer widthOrDuration, |
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Integer height, Integer size) {
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for(int i=0; i<mimeTypes.length; i++){
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mimeTypes[i] = mimeTypes[i].replace(':', '/');
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} |
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|
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if(sizeTokens.length > 0){
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try {
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size = Integer.valueOf(sizeTokens[0]); |
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} catch (NumberFormatException nfe) {
|
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/* IGNORE */ |
|
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} |
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} |
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if(sizeTokens.length > 1){
|
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try {
|
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widthOrDuration = Integer.valueOf(sizeTokens[1]); |
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} catch (NumberFormatException nfe) {
|
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/* IGNORE */ |
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} |
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} |
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if(sizeTokens.length > 2){
|
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try {
|
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height = Integer.valueOf(sizeTokens[2]); |
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} catch (NumberFormatException nfe) {
|
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/* IGNORE */ |
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} |
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} |
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|
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List<Media> returnMedia = new ArrayList<Media>(mediaList.size()); |
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if(mediaList != null){
|
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for(Media media : mediaList){
|
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SortedMap<Integer, MediaRepresentation> prefRepresentations |
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= orderMediaRepresentations(media, mimeTypes, size, widthOrDuration, height); |
|
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try {
|
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// take first one and remove all other representations |
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MediaRepresentation prefOne = prefRepresentations.get(prefRepresentations.firstKey()); |
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for (MediaRepresentation representation : media.getRepresentations()) {
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if (representation != prefOne) {
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media.removeRepresentation(representation); |
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} |
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} |
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returnMedia.add(media); |
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} catch (NoSuchElementException nse) {
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logger.debug(nse); |
|
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/* IGNORE */ |
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} |
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} |
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} |
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return returnMedia; |
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} |
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|
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/** |
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* @param media |
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* @param mimeTypeRegexes |
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* @param size |
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* @param widthOrDuration |
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* @param height |
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* @return |
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* |
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* TODO move into a media utils class |
|
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* TODO implement the quality filter |
|
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|
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public static SortedMap<String, MediaRepresentation> orderMediaRepresentations(Media media, String[] mimeTypeRegexes, |
|
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Integer size, Integer widthOrDuration, Integer height) {
|
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SortedMap<String, MediaRepresentation> prefRepr = new TreeMap<String, MediaRepresentation>(); |
|
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for (String mimeTypeRegex : mimeTypeRegexes) {
|
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// getRepresentationByMimeType |
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Pattern mimeTypePattern = Pattern.compile(mimeTypeRegex); |
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int representationCnt = 0; |
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for (MediaRepresentation representation : media.getRepresentations()) {
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int dwa = 0; |
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if(representation.getMimeType() == null){
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prefRepr.put((dwa + representationCnt++) + "_NA", representation); |
|
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} else {
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Matcher mather = mimeTypePattern.matcher(representation.getMimeType()); |
|
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if (mather.matches()) {
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|
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/* TODO the quality filter part is being skipped |
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* // look for representation with the best matching parts |
|
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for (MediaRepresentationPart part : representation.getParts()) {
|
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if (part instanceof ImageFile) {
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ImageFile image = (ImageFile) part; |
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int dw = image.getWidth() * image.getHeight() - height * widthOrDuration; |
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if (dw < 0) {
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dw *= -1; |
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} |
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dwa += dw; |
|
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} |
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dwa = (representation.getParts().size() > 0 ? dwa / representation.getParts().size() : 0); |
|
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} |
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prefRepr.put((dwa + representationCnt++) + '_' + representation.getMimeType(), representation); |
|
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|
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// preferred mime type found => end loop |
|
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break; |
|
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} |
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} |
|
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} |
|
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} |
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return prefRepr; |
|
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} |
|
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|
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*/ |
|
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/** |
|
| 155 |
* @param mimeTypeRegexes |
|
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* @param size |
|
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* @param widthOrDuration |
|
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* @param height |
|
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* @return |
|
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* |
|
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* |
|
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*/ |
|
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private static SortedMap<Integer, MediaRepresentation> orderMediaRepresentations(Media media, String[] mimeTypeRegexes, |
|
| 164 |
Integer size, Integer widthOrDuration, Integer height) {
|
|
| 165 |
|
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| 166 |
SortedMap<Integer, MediaRepresentation> prefRepr = new TreeMap<Integer, MediaRepresentation>(); |
|
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// SortedMap<String, MediaRepresentation> sortedForSizeDistance = new TreeMap<String, MediaRepresentation>(); |
|
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// String keyString = ""; |
|
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|
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size = (size == null ? new Integer(0) : size ); |
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widthOrDuration = (widthOrDuration == null ? new Integer(0) : widthOrDuration); |
|
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height = (height == null ? new Integer(0) : height); |
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mimeTypeRegexes = (mimeTypeRegexes == null ? new String[]{} : mimeTypeRegexes);
|
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|
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| 175 |
if(media != null){
|
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| 176 |
|
|
| 177 |
for (String mimeTypeRegex : mimeTypeRegexes) {
|
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| 178 |
// getRepresentationByMimeType |
|
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Pattern mimeTypePattern = Pattern.compile(mimeTypeRegex); |
|
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int representationCnt = 0; |
|
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for (MediaRepresentation representation : media.getRepresentations()) {
|
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| 182 |
if(representation.getMimeType() != null){
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Matcher mather = mimeTypePattern.matcher(representation.getMimeType()); |
|
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if (mather.matches()) {
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int dwa = 0; |
|
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|
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//first the size is used for comparison |
|
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for (MediaRepresentationPart part : representation.getParts()) {
|
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| 189 |
if (part.getSize()!= null){
|
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int sizeOfPart = part.getSize(); |
|
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int distance = sizeOfPart - size; |
|
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if (distance < 0) {
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distance*= -1; |
|
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} |
|
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dwa += distance; |
|
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} |
|
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//if height and width/duration is defined, add this information, too |
|
| 198 |
if (height != 0 && widthOrDuration != 0){
|
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int dw = 0; |
|
| 200 |
|
|
| 201 |
if (part instanceof ImageFile) {
|
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ImageFile image = (ImageFile) part; |
|
| 203 |
dw = image.getWidth() * image.getHeight() - height * widthOrDuration; |
|
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} |
|
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else if (part instanceof MovieFile){
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MovieFile movie = (MovieFile) part; |
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dw = movie.getDuration() - widthOrDuration; |
|
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|
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}else if (part instanceof AudioFile){
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AudioFile audio = (AudioFile) part; |
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dw = audio.getDuration() - widthOrDuration; |
|
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|
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} |
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if (dw < 0) {
|
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dw *= -1; |
|
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} |
|
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dwa += dw; |
|
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|
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} |
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} |
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dwa = (representation.getParts().size() > 0 ? dwa / representation.getParts().size() : 0); |
|
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|
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//keyString =(dwa + representationCnt++) + '_' + representation.getMimeType(); |
|
| 224 |
|
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| 225 |
prefRepr.put((dwa + representationCnt++), representation); |
|
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} |
|
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} |
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} |
|
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} |
|
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} |
|
| 231 |
return prefRepr; |
|
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} |
|
| 20 |
private static final Logger logger = Logger.getLogger(MediaUtils.class); |
|
| 21 |
|
|
| 22 |
/** |
|
| 23 |
* @param representationPartType TODO |
|
| 24 |
* @param size |
|
| 25 |
* @param height |
|
| 26 |
* @param widthOrDuration |
|
| 27 |
* @param mimeTypeRegexes |
|
| 28 |
* @return |
|
| 29 |
* |
|
| 30 |
* |
|
| 31 |
*/ |
|
| 32 |
public static MediaRepresentation findBestMatchingRepresentation(Media media, Class<? extends MediaRepresentationPart> representationPartType, Integer size, Integer height, Integer widthOrDuration, String[] mimeTypes){
|
|
| 33 |
// find best matching representations of each media |
|
| 34 |
SortedMap<Integer, MediaRepresentation> prefRepresentations |
|
| 35 |
= filterAndOrderMediaRepresentations(media.getRepresentations(), null, mimeTypes, size, widthOrDuration, height); |
|
| 36 |
try {
|
|
| 37 |
// take first one and remove all other representations |
|
| 38 |
MediaRepresentation prefOne = prefRepresentations.get(prefRepresentations.firstKey()); |
|
| 39 |
|
|
| 40 |
return prefOne; |
|
| 41 |
|
|
| 42 |
} catch (NoSuchElementException nse) {
|
|
| 43 |
/* IGNORE */ |
|
| 44 |
} |
|
| 45 |
return null; |
|
| 46 |
} |
|
| 47 |
|
|
| 48 |
/** |
|
| 49 |
* |
|
| 50 |
* @param mediaList |
|
| 51 |
* @param representationPartType TODO |
|
| 52 |
* @param mimeTypes |
|
| 53 |
* @param sizeTokens |
|
| 54 |
* @param widthOrDuration |
|
| 55 |
* @param height |
|
| 56 |
* @param size |
|
| 57 |
* @return |
|
| 58 |
*/ |
|
| 59 |
public static List<Media> findPreferredMedia(List<Media> mediaList, |
|
| 60 |
Class<? extends MediaRepresentationPart> representationPartType, String[] mimeTypes, String[] sizeTokens, |
|
| 61 |
Integer widthOrDuration, Integer height, Integer size) {
|
|
| 62 |
|
|
| 63 |
if(mimeTypes != null) {
|
|
| 64 |
for(int i=0; i<mimeTypes.length; i++){
|
|
| 65 |
mimeTypes[i] = mimeTypes[i].replace(':', '/');
|
|
| 66 |
} |
|
| 67 |
} |
|
| 68 |
|
|
| 69 |
if(sizeTokens != null) {
|
|
| 70 |
if(sizeTokens.length > 0){
|
|
| 71 |
try {
|
|
| 72 |
size = Integer.valueOf(sizeTokens[0]); |
|
| 73 |
} catch (NumberFormatException nfe) {
|
|
| 74 |
/* IGNORE */ |
|
| 75 |
} |
|
| 76 |
} |
|
| 77 |
if(sizeTokens.length > 1){
|
|
| 78 |
try {
|
|
| 79 |
widthOrDuration = Integer.valueOf(sizeTokens[1]); |
|
| 80 |
} catch (NumberFormatException nfe) {
|
|
| 81 |
/* IGNORE */ |
|
| 82 |
} |
|
| 83 |
} |
|
| 84 |
if(sizeTokens.length > 2){
|
|
| 85 |
try {
|
|
| 86 |
height = Integer.valueOf(sizeTokens[2]); |
|
| 87 |
} catch (NumberFormatException nfe) {
|
|
| 88 |
/* IGNORE */ |
|
| 89 |
} |
|
| 90 |
} |
|
| 91 |
} |
|
| 92 |
|
|
| 93 |
List<Media> returnMediaList = new ArrayList<Media>(mediaList.size()); |
|
| 94 |
if(mediaList != null){
|
|
| 95 |
for(Media media : mediaList){
|
|
| 96 |
|
|
| 97 |
Set<MediaRepresentation> candidateRepresentations = new HashSet<MediaRepresentation>(); |
|
| 98 |
candidateRepresentations.addAll(media.getRepresentations()); |
|
| 99 |
|
|
| 100 |
SortedMap<Integer, MediaRepresentation> prefRepresentations |
|
| 101 |
= filterAndOrderMediaRepresentations(candidateRepresentations, representationPartType, mimeTypes, size, widthOrDuration, height); |
|
| 102 |
try {
|
|
| 103 |
if(prefRepresentations.size() > 0){
|
|
| 104 |
// Media.representations is a set |
|
| 105 |
// so it cannot retain the sorting which has been found by filterAndOrderMediaRepresentations() |
|
| 106 |
// thus we take first one and remove all other representations |
|
| 107 |
|
|
| 108 |
media.getRepresentations().clear(); |
|
| 109 |
media.addRepresentation(prefRepresentations.get(prefRepresentations.firstKey())); |
|
| 110 |
returnMediaList.add(media); |
|
| 111 |
} |
|
| 112 |
} catch (NoSuchElementException nse) {
|
|
| 113 |
logger.debug(nse); |
|
| 114 |
/* IGNORE */ |
|
| 115 |
} |
|
| 116 |
|
|
| 117 |
} |
|
| 118 |
} |
|
| 119 |
return returnMediaList; |
|
| 120 |
} |
|
| 121 |
|
|
| 122 |
/** |
|
| 123 |
* @param media |
|
| 124 |
* @param mimeTypeRegexes |
|
| 125 |
* @param size |
|
| 126 |
* @param widthOrDuration |
|
| 127 |
* @param height |
|
| 128 |
* @return |
|
| 129 |
* |
|
| 130 |
* TODO move into a media utils class |
|
| 131 |
* TODO implement the quality filter |
|
| 132 |
|
|
| 133 |
public static SortedMap<String, MediaRepresentation> orderMediaRepresentations(Media media, String[] mimeTypeRegexes, |
|
| 134 |
Integer size, Integer widthOrDuration, Integer height) {
|
|
| 135 |
SortedMap<String, MediaRepresentation> prefRepr = new TreeMap<String, MediaRepresentation>(); |
|
| 136 |
for (String mimeTypeRegex : mimeTypeRegexes) {
|
|
| 137 |
// getRepresentationByMimeType |
|
| 138 |
Pattern mimeTypePattern = Pattern.compile(mimeTypeRegex); |
|
| 139 |
int representationCnt = 0; |
|
| 140 |
for (MediaRepresentation representation : media.getRepresentations()) {
|
|
| 141 |
int dwa = 0; |
|
| 142 |
if(representation.getMimeType() == null){
|
|
| 143 |
prefRepr.put((dwa + representationCnt++) + "_NA", representation); |
|
| 144 |
} else {
|
|
| 145 |
Matcher mather = mimeTypePattern.matcher(representation.getMimeType()); |
|
| 146 |
if (mather.matches()) {
|
|
| 147 |
|
|
| 148 |
/* TODO the quality filter part is being skipped |
|
| 149 |
* // look for representation with the best matching parts |
|
| 150 |
for (MediaRepresentationPart part : representation.getParts()) {
|
|
| 151 |
if (part instanceof ImageFile) {
|
|
| 152 |
ImageFile image = (ImageFile) part; |
|
| 153 |
int dw = image.getWidth() * image.getHeight() - height * widthOrDuration; |
|
| 154 |
if (dw < 0) {
|
|
| 155 |
dw *= -1; |
|
| 156 |
} |
|
| 157 |
dwa += dw; |
|
| 158 |
} |
|
| 159 |
dwa = (representation.getParts().size() > 0 ? dwa / representation.getParts().size() : 0); |
|
| 160 |
} |
|
| 161 |
prefRepr.put((dwa + representationCnt++) + '_' + representation.getMimeType(), representation); |
|
| 162 |
|
|
| 163 |
// preferred mime type found => end loop |
|
| 164 |
break; |
|
| 165 |
} |
|
| 166 |
} |
|
| 167 |
} |
|
| 168 |
} |
|
| 169 |
return prefRepr; |
|
| 170 |
} |
|
| 171 |
|
|
| 172 |
*/ |
|
| 173 |
/** |
|
| 174 |
* @param mimeTypeRegexes |
|
| 175 |
* @param size |
|
| 176 |
* @param widthOrDuration |
|
| 177 |
* @param height |
|
| 178 |
* @return |
|
| 179 |
* |
|
| 180 |
* |
|
| 181 |
*/ |
|
| 182 |
private static SortedMap<Integer, MediaRepresentation> filterAndOrderMediaRepresentations(Set<MediaRepresentation> mediaRepresentations, |
|
| 183 |
Class<? extends MediaRepresentationPart> representationPartType, String[] mimeTypeRegexes, |
|
| 184 |
Integer size, Integer widthOrDuration, Integer height) {
|
|
| 185 |
|
|
| 186 |
SortedMap<Integer, MediaRepresentation> prefRepr = new TreeMap<Integer, MediaRepresentation>(); |
|
| 187 |
|
|
| 188 |
|
|
| 189 |
size = (size == null ? new Integer(0) : size ); |
|
| 190 |
widthOrDuration = (widthOrDuration == null ? new Integer(0) : widthOrDuration); |
|
| 191 |
height = (height == null ? new Integer(0) : height); |
|
| 192 |
mimeTypeRegexes = (mimeTypeRegexes == null ? new String[]{".*"} : mimeTypeRegexes);
|
|
| 193 |
|
|
| 194 |
for (String mimeTypeRegex : mimeTypeRegexes) {
|
|
| 195 |
// getRepresentationByMimeType |
|
| 196 |
Pattern mimeTypePattern = Pattern.compile(mimeTypeRegex); |
|
| 197 |
int representationCnt = 0; |
|
| 198 |
for (MediaRepresentation representation : mediaRepresentations) {
|
|
| 199 |
|
|
| 200 |
List<MediaRepresentationPart> matchingParts = new ArrayList<MediaRepresentationPart>(); |
|
| 201 |
|
|
| 202 |
|
|
| 203 |
// check MIME type |
|
| 204 |
boolean mimeTypeOK = representation.getMimeType() == null || mimeTypePattern.matcher(representation.getMimeType()).matches(); |
|
| 205 |
logger.debug("mimeTypeOK: " + Boolean.valueOf(mimeTypeOK).toString());
|
|
| 206 |
|
|
| 207 |
int dwa = 0; |
|
| 208 |
|
|
| 209 |
|
|
| 210 |
//first the size is used for comparison |
|
| 211 |
for (MediaRepresentationPart part : representation.getParts()) {
|
|
| 212 |
|
|
| 213 |
// check representationPartType |
|
| 214 |
boolean representationPartTypeOK = representationPartType == null || part.getClass().isAssignableFrom(representationPartType); |
|
| 215 |
logger.debug("representationPartTypeOK: " + Boolean.valueOf(representationPartTypeOK).toString());
|
|
| 216 |
|
|
| 217 |
if ( !(representationPartTypeOK && mimeTypeOK) ) {
|
|
| 218 |
continue; |
|
| 219 |
} |
|
| 220 |
|
|
| 221 |
logger.debug(part + " matches"); |
|
| 222 |
matchingParts.add(part); |
|
| 223 |
|
|
| 224 |
if (part.getSize()!= null){
|
|
| 225 |
int sizeOfPart = part.getSize(); |
|
| 226 |
int distance = sizeOfPart - size; |
|
| 227 |
if (distance < 0) {
|
|
| 228 |
distance*= -1; |
|
| 229 |
} |
|
| 230 |
dwa += distance; |
|
| 231 |
} |
|
| 232 |
|
|
| 233 |
//if height and width/duration is defined, add this information, too |
|
| 234 |
if (height != 0 && widthOrDuration != 0){
|
|
| 235 |
int durationWidthWeight = 0; |
|
| 236 |
|
|
| 237 |
if (part instanceof ImageFile) {
|
|
| 238 |
ImageFile image = (ImageFile) part; |
|
| 239 |
durationWidthWeight = image.getWidth() * image.getHeight() - height * widthOrDuration; |
|
| 240 |
} |
|
| 241 |
else if (part instanceof MovieFile){
|
|
| 242 |
MovieFile movie = (MovieFile) part; |
|
| 243 |
durationWidthWeight = movie.getDuration() - widthOrDuration; |
|
| 244 |
|
|
| 245 |
}else if (part instanceof AudioFile){
|
|
| 246 |
AudioFile audio = (AudioFile) part; |
|
| 247 |
durationWidthWeight = audio.getDuration() - widthOrDuration; |
|
| 248 |
|
|
| 249 |
} |
|
| 250 |
if (durationWidthWeight < 0) {
|
|
| 251 |
durationWidthWeight *= -1; |
|
| 252 |
} |
|
| 253 |
dwa += durationWidthWeight; |
|
| 254 |
|
|
| 255 |
} |
|
| 256 |
} // loop parts |
|
| 257 |
logger.debug("matchingParts.size():" + matchingParts.size());
|
|
| 258 |
if(matchingParts.size() > 0 ){
|
|
| 259 |
dwa = dwa / matchingParts.size(); |
|
| 260 |
|
|
| 261 |
representation.getParts().clear(); |
|
| 262 |
representation.getParts().addAll(matchingParts); |
|
| 263 |
|
|
| 264 |
//keyString =(dwa + representationCnt++) + '_' + representation.getMimeType(); |
|
| 265 |
|
|
| 266 |
prefRepr.put((dwa + representationCnt++), representation); |
|
| 267 |
} |
|
| 268 |
} // loop representations |
|
| 269 |
} // loop mime types |
|
| 270 |
logger.debug(prefRepr.size() + " preferred representations found"); |
|
| 271 |
return prefRepr; |
|
| 272 |
} |
|
| 233 | 273 |
} |
Also available in: Unified diff
modifications in cdmlib for #2206 (modify the means to find images for the data portal)