Hi.
We finish this job.
The Solution was to create the VideoPreviewer and AudioPreviewer (they extends AbstractPreviewer class and implements MimeTypePreviewer class).
I followed the Nuxeo document ( http://doc.nuxeo.com/display/NXDOC/Preview?src=search#Preview-MimeTypePreviewerDetails ).
I contributed with these Preview classes using a config file, like these examples http://explorer.nuxeo.org/nuxeo/site/distribution/current/viewExtensionPoint/org.nuxeo.ecm.platform....
VideoPreviewer.java
public List getPreview(Blob blob, DocumentModel dm) throws PreviewException {
List blobResults = new ArrayList();
// Collect video parameters and create the Video entity
Video video = createVideo(blob);
// Converting the Video to WebM
TranscodedVideo videoTranscoded = videoService.convert(video, "WebM 480p");
File transcodedBlobFile = BlobHelper.getFileFromBlob(videoTranscoded.getBlob());
// Create the WEB_SERVER/tmp directory. We need it because the browser
// do not allow open videos from local directory
String tmpFolderPath = createTmpFolder();
// Now we have to move the Transcoded file to tmp directory
File newTranscodedBlobFile = new File(tmpFolderPath + "/" + transcodedBlobFile.getName());
try {
Files.move(transcodedBlobFile, newTranscodedBlobFile);
} catch (IOException e1) {
e1.printStackTrace();
}
//To get the transcode URL. We need it to append on the HTML code
String transcodedUrl = createTrancodedUrl(newTranscodedBlobFile);
try {
StringBuffer htmlPage = new StringBuffer();
htmlPage.append("");
htmlPage.append("");
htmlPage.append("");
htmlPage.append("");
htmlPage.append(dm.getName() + " - " + blob.getFilename());
//Appending the videoJS (the video player and the transcoded URL) code into HTML page.
htmlPage = appendVideoPlayer(htmlPage, transcodedUrl);
htmlPage.append("");
Blob mainBlob = new StringBlob(htmlPage.toString());
mainBlob.setFilename("index.html");
mainBlob.setMimeType("text/html");
blobResults.add(mainBlob);
} catch (Exception e) {
throw new PreviewException("Unable to get document property", e);
}
return blobResults;
}
AudioPreviewer.java
public List getPreview(Blob blob, DocumentModel dm) throws PreviewException {
List blobResults = new ArrayList();
File audioBlobFile = BlobHelper.getFileFromBlob(blob);
// Create the WEB_SERVER/tmp directory. We need it because the browser
// do not allow open audios from local directory
String tmpFolderPath = createTmpFolder();
// Now we have to copy the Transcoded file to tmp directory
File newAudioBlobFile = new File(tmpFolderPath + "/" + audioBlobFile.getName());
try {
Files.copy(audioBlobFile, newAudioBlobFile);
} catch (IOException e1) {
e1.printStackTrace();
}
//To get the transcode URL. We need it to append on the HTML code
String audioUrl = createAudioUrl(newAudioBlobFile);
try {
StringBuffer htmlPage = new StringBuffer();
htmlPage.append("");
htmlPage.append("");
htmlPage.append("");
htmlPage.append("");
htmlPage.append(dm.getName() + " - " + blob.getFilename());
//Appending the videoJS (the video player and the transcoded URL) code into HTML page.
htmlPage = appendAudioPlayer(htmlPage, audioUrl);
htmlPage.append("");
Blob mainBlob = new StringBlob(htmlPage.toString());
mainBlob.setFilename("index.html");
mainBlob.setMimeType("text/html");
blobResults.add(mainBlob);
} catch (Exception e) {
throw new PreviewException("Unable to get document property", e);
}
return blobResults;
}
The result is: from every place where Nuxeo call the "Preview" action my classes are called.
I'm just using the DAM jars (audio and video)
PS: I'm not sure if the VideoPreview conversion is the best solution, but it works.
