1 files changed, 86 insertions, 0 deletions
diff --git a/isoparser/src/main/java/com/googlecode/mp4parser/authoring/builder/.svn/text-base/TwoSecondIntersectionFinder.java.svn-base b/isoparser/src/main/java/com/googlecode/mp4parser/authoring/builder/.svn/text-base/TwoSecondIntersectionFinder.java.svn-base
new file mode 100644
index 0000000..88aa4ab
--- /dev/null
+++ b/isoparser/src/main/java/com/googlecode/mp4parser/authoring/builder/.svn/text-base/TwoSecondIntersectionFinder.java.svn-base
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2012 Sebastian Annies, Hamburg
+ *
+ * Licensed under the Apache License, Version 2.0 (the License);
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.googlecode.mp4parser.authoring.builder;
+
+import com.coremedia.iso.boxes.TimeToSampleBox;
+import com.googlecode.mp4parser.authoring.Movie;
+import com.googlecode.mp4parser.authoring.Track;
+
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * This <code>FragmentIntersectionFinder</code> cuts the input movie in 2 second
+ * snippets.
+ */
+public class TwoSecondIntersectionFinder implements FragmentIntersectionFinder {
+
+    protected long getDuration(Track track) {
+        long duration = 0;
+        for (TimeToSampleBox.Entry entry : track.getDecodingTimeEntries()) {
+            duration += entry.getCount() * entry.getDelta();
+        }
+        return duration;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public long[] sampleNumbers(Track track, Movie movie) {
+        List<TimeToSampleBox.Entry> entries = track.getDecodingTimeEntries();
+
+        double trackLength = 0;
+        for (Track thisTrack : movie.getTracks()) {
+            double thisTracksLength = getDuration(thisTrack) / thisTrack.getTrackMetaData().getTimescale();
+            if (trackLength < thisTracksLength) {
+                trackLength = thisTracksLength;
+            }
+        }
+
+        int fragmentCount = (int)Math.ceil(trackLength / 2) - 1;
+        if (fragmentCount < 1) {
+            fragmentCount = 1;
+        }
+
+        long fragments[] = new long[fragmentCount];
+        Arrays.fill(fragments, -1);
+        fragments[0] = 1;
+
+        long time = 0;
+        int samples = 0;
+        for (TimeToSampleBox.Entry entry : entries) {
+            for (int i = 0; i < entry.getCount(); i++) {
+                int currentFragment = (int) (time / track.getTrackMetaData().getTimescale() / 2) + 1;
+                if (currentFragment >= fragments.length) {
+                    break;
+                }
+                fragments[currentFragment] = samples++ + 1;
+                time += entry.getDelta();
+            }
+        }
+        long last = samples + 1;
+        // fill all -1 ones.
+        for (int i = fragments.length - 1; i >= 0; i--) {
+            if (fragments[i] == -1) {
+                fragments[i] = last ;
+            }
+            last = fragments[i];
+        }
+        return fragments;
+
+    }
+
+}