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Code Issues Releases Wiki Activity

better handle error when gstreamer can't load in media view

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This commit is contained in:
adam-m
2013-03-18 14:44:44 -04:00
parent 38c895d6be
commit 29249ac7ec
1 changed files with 70 additions and 37 deletions
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Core/src/org/sleuthkit/autopsy/corecomponents/DataContentViewerMedia.java
+70 -37
View File
@@ -46,16 +46,15 @@ import org.openide.util.lookup.ServiceProvider;
import org.openide.util.lookup.ServiceProviders;
import org.sleuthkit.autopsy.casemodule.Case;
import org.sleuthkit.autopsy.corecomponentinterfaces.DataContentViewer;
import org.sleuthkit.autopsy.coreutils.MessageNotifyUtil;
import org.sleuthkit.autopsy.datamodel.ContentUtils;
import org.sleuthkit.datamodel.AbstractFile;
import org.sleuthkit.datamodel.File;
import org.sleuthkit.datamodel.TskData.TSK_FS_NAME_FLAG_ENUM;
/**
* Media content viewer for videos, sounds and images.
* Using gstreamer.
* Media content viewer for videos, sounds and images. Using gstreamer.
*/
@ServiceProviders(value={
@ServiceProviders(value = {
@ServiceProvider(service = DataContentViewer.class, position = 5),
@ServiceProvider(service = FrameCapture.class)
})
@@ -76,6 +75,7 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
private VideoProgressWorker videoProgressWorker;
private int totalHours, totalMinutes, totalSeconds;
private BufferedImage currentImage = null;
private boolean gstInited = false;
/**
* Creates new form DataContentViewerVideo
@@ -86,7 +86,25 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
}
private void customizeComponents() {
Gst.init();
try {
Gst.init();
gstInited = true;
} catch (GstException e) {
gstInited = false;
logger.log(Level.SEVERE, "Error initializing gstreamer for Media Viewing and frame extraction capabilities", e);
MessageNotifyUtil.Notify.error("Error initializing gstreamer for Media Viewing and frame extraction capabilities. "
+ " Media View will be disabled. ",
e.getMessage());
return;
} catch (UnsatisfiedLinkError | NoClassDefFoundError | Exception e) {
gstInited = false;
logger.log(Level.SEVERE, "Error initializing gstreamer for Media Viewing and extraction capabilities", e);
MessageNotifyUtil.Notify.error("Error initializing gstreamer for Media View and frame extraction capabilities. "
+ " Media View will be disabled. ",
e.getMessage());
return;
}
progressSlider.setEnabled(false); // disable slider; enable after user plays vid
progressSlider.addChangeListener(new ChangeListener() {
/**
@@ -200,12 +218,16 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
@Override
public void setNode(Node selectedNode) {
if (!gstInited) {
return;
}
reset();
setComponentsVisibility(false);
if (selectedNode == null) {
return;
}
// get rid of any existing videoProgressWorker thread
if (videoProgressWorker != null) {
videoProgressWorker.cancel(true);
@@ -341,6 +363,12 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
progressLabel.setText("");
}
});
if (!gstInited) {
return;
}
synchronized (playbinLock) {
if (playbin2 != null) {
if (playbin2.isPlaying()) {
@@ -358,6 +386,9 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
@Override
public boolean isSupported(Node node) {
if (!gstInited) {
return false;
}
if (node == null) {
return false;
}
@@ -369,7 +400,7 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
//try displaying deleted files if we can read them
//if (file.isDirNameFlagSet(TSK_FS_NAME_FLAG_ENUM.UNALLOC)) {
// return false;
// return false;
//}
if (file.getSize() == 0) {
@@ -379,10 +410,10 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
String name = file.getName().toLowerCase();
boolean deleted = file.isDirNameFlagSet(TSK_FS_NAME_FLAG_ENUM.UNALLOC);
if (containsExt(name, IMAGES)
|| containsExt(name, AUDIOS)
|| (!deleted && containsExt(name, VIDEOS) ) ) {
if (containsExt(name, IMAGES)
|| containsExt(name, AUDIOS)
|| (!deleted && containsExt(name, VIDEOS))) {
return true;
}
@@ -424,9 +455,13 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
@Override
public List<VideoFrame> captureFrames(java.io.File file, int numFrames) {
List<VideoFrame> frames = new ArrayList<>();
if (!gstInited) {
return frames;
}
RGBDataSink.Listener listener1 = new RGBDataSink.Listener() {
@Override
public void rgbFrame(boolean bln, int w, int h, IntBuffer rgbPixels) {
@@ -442,12 +477,12 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
PlayBin2 playbin = new PlayBin2("VideoFrameCapture");
playbin.setInputFile(file);
playbin.setVideoSink(videoSink);
// this is necessary to get a valid duration value
playbin.play();
playbin.pause();
playbin.getState();
// get the duration of the video
TimeUnit unit = TimeUnit.MILLISECONDS;
long myDurationMillis = playbin.queryDuration(unit);
@@ -457,14 +492,14 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
// create a list of timestamps at which to get frames
int numFramesToGet = numFrames;
long frameInterval = myDurationMillis/numFrames;
long frameInterval = myDurationMillis / numFrames;
if (frameInterval < MIN_FRAME_INTERVAL_MILLIS) {
numFramesToGet = 1;
}
// for each timeStamp, grap a frame
for (int i = 0; i < numFramesToGet; ++i) {
long timeStamp = i*frameInterval;
long timeStamp = i * frameInterval;
playbin.pause();
playbin.getState();
@@ -474,16 +509,16 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
logger.log(Level.INFO, "There was a problem seeking to " + timeStamp + " " + unit.name().toLowerCase());
}
playbin.play();
while (currentImage == null) {
System.out.flush(); // not sure why this is needed
}
playbin.stop();
frames.add(new VideoFrame(currentImage, timeStamp));
}
return frames;
}
@@ -506,8 +541,6 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
public long getExtractedBytes() {
return extractedBytes;
}
@Override
protected Object doInBackground() throws Exception {
@@ -563,15 +596,15 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
}
duration = dur.toString();
durationMillis = dur.toMillis();
// pick out the total hours, minutes, seconds
long durationSeconds = (int)durationMillis / 1000;
long durationSeconds = (int) durationMillis / 1000;
totalHours = (int) durationSeconds / 3600;
durationSeconds -= totalHours * 3600;
totalMinutes = (int) durationSeconds / 60;
durationSeconds -= totalMinutes * 60;
totalSeconds = (int) durationSeconds;
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
@@ -588,9 +621,9 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
});
}
}
private class VideoProgressWorker extends SwingWorker<Object, Object> {
private String durationFormat = "%02d:%02d:%02d/%02d:%02d:%02d ";
private long millisElapsed = 0;
private final long INTER_FRAME_PERIOD_MS = 20;
@@ -601,7 +634,7 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
return playbin2 != null && !playbin2.getState().equals(State.NULL);
}
}
public void resetVideo() {
synchronized (playbinLock) {
if (playbin2 != null) {
@@ -611,17 +644,17 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
}
pauseButton.setText("►");
progressSlider.setValue(0);
String durationStr = String.format(durationFormat, 0, 0, 0,
totalHours, totalMinutes, totalSeconds);
totalHours, totalMinutes, totalSeconds);
progressLabel.setText(durationStr);
}
/**
* @return true while millisElapsed is greater than END_TIME_MARGIN_MS
* from durationMillis. This is used to indicate when the video has ended
* because for some videos the time elapsed never becomes equal to the
* reported duration of the video.
* from durationMillis. This is used to indicate when the video has
* ended because for some videos the time elapsed never becomes equal to
* the reported duration of the video.
*/
private boolean hasNotEnded() {
return (durationMillis - millisElapsed) > END_TIME_MARGIN_MS;
@@ -629,14 +662,14 @@ public class DataContentViewerMedia extends javax.swing.JPanel implements DataCo
@Override
protected Object doInBackground() throws Exception {
// enable the slider
progressSlider.setEnabled(true);
int elapsedHours = -1, elapsedMinutes = -1, elapsedSeconds = -1;
ClockTime pos = null;
while (hasNotEnded() && isPlayBinReady() && !isCancelled()) {
synchronized (playbinLock) {
pos = playbin2.queryPosition();
}