diff options
Diffstat (limited to 'isoparser/src/main/java/com/coremedia/iso/boxes/.svn/text-base/EditListBox.java.svn-base')
| -rw-r--r-- | isoparser/src/main/java/com/coremedia/iso/boxes/.svn/text-base/EditListBox.java.svn-base | 248 |
1 files changed, 0 insertions, 248 deletions
diff --git a/isoparser/src/main/java/com/coremedia/iso/boxes/.svn/text-base/EditListBox.java.svn-base b/isoparser/src/main/java/com/coremedia/iso/boxes/.svn/text-base/EditListBox.java.svn-base deleted file mode 100644 index 231f8be..0000000 --- a/isoparser/src/main/java/com/coremedia/iso/boxes/.svn/text-base/EditListBox.java.svn-base +++ /dev/null @@ -1,248 +0,0 @@ -/* - * Copyright 2008 CoreMedia AG, 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.coremedia.iso.boxes; - - -import com.coremedia.iso.IsoTypeReader; -import com.coremedia.iso.IsoTypeWriter; -import com.googlecode.mp4parser.AbstractFullBox; - -import java.io.IOException; -import java.nio.ByteBuffer; -import java.util.LinkedList; -import java.util.List; - -import static com.googlecode.mp4parser.util.CastUtils.l2i; - -/** - * <code> - * Box Type : 'elst'<br> - * Container: {@link EditBox}('edts')<br> - * Mandatory: No<br> - * Quantity : Zero or one</code><br><br> - * This box contains an explicit timeline map. Each entry defines part of the track time-line: by mapping part of - * the media time-line, or by indicating 'empty' time, or by defining a 'dwell', where a single time-point in the - * media is held for a period.<br> - * Note that edits are not restricted to fall on sample times. This means that when entering an edit, it can be - * necessary to (a) back up to a sync point, and pre-roll from there and then (b) be careful about the duration of - * the first sample - it might have been truncated if the edit enters it during its normal duration. If this is audio, - * that frame might need to be decoded, and then the final slicing done. Likewise, the duration of the last sample - * in an edit might need slicing. <br> - * Starting offsets for tracks (streams) are represented by an initial empty edit. For example, to play a track from - * its start for 30 seconds, but at 10 seconds into the presentation, we have the following edit list:<br> - * <p/> - * <li>Entry-count = 2</li> - * <li>Segment-duration = 10 seconds</li> - * <li>Media-Time = -1</li> - * <li>Media-Rate = 1</li> - * <li>Segment-duration = 30 seconds (could be the length of the whole track)</li> - * <li>Media-Time = 0 seconds</li> - * <li>Media-Rate = 1</li> - */ -public class EditListBox extends AbstractFullBox { - private List<Entry> entries = new LinkedList<Entry>(); - public static final String TYPE = "elst"; - - public EditListBox() { - super(TYPE); - } - - - public List<Entry> getEntries() { - return entries; - } - - public void setEntries(List<Entry> entries) { - this.entries = entries; - } - - protected long getContentSize() { - long contentSize = 8; - if (getVersion() == 1) { - contentSize += entries.size() * 20; - } else { - contentSize += entries.size() * 12; - } - - return contentSize; - } - - @Override - public void _parseDetails(ByteBuffer content) { - parseVersionAndFlags(content); - int entryCount = l2i(IsoTypeReader.readUInt32(content)); - entries = new LinkedList<Entry>(); - for (int i = 0; i < entryCount; i++) { - entries.add(new Entry(this, content)); - - } - } - - @Override - protected void getContent(ByteBuffer byteBuffer) { - writeVersionAndFlags(byteBuffer); - IsoTypeWriter.writeUInt32(byteBuffer, entries.size()); - for (Entry entry : entries) { - entry.getContent(byteBuffer); - } - } - - @Override - public String toString() { - return "EditListBox{" + - "entries=" + entries + - '}'; - } - - public static class Entry { - private long segmentDuration; - private long mediaTime; - private double mediaRate; - EditListBox editListBox; - - /** - * Creates a new <code>Entry</code> with all values set. - * - * @param segmentDuration duration in movie timescale - * @param mediaTime starting time - * @param mediaRate relative play rate - */ - public Entry(EditListBox editListBox, long segmentDuration, long mediaTime, double mediaRate) { - this.segmentDuration = segmentDuration; - this.mediaTime = mediaTime; - this.mediaRate = mediaRate; - this.editListBox = editListBox; - } - - public Entry(EditListBox editListBox, ByteBuffer bb) { - if (editListBox.getVersion() == 1) { - segmentDuration = IsoTypeReader.readUInt64(bb); - mediaTime = IsoTypeReader.readUInt64(bb); - mediaRate = IsoTypeReader.readFixedPoint1616(bb); - } else { - segmentDuration = IsoTypeReader.readUInt32(bb); - mediaTime = IsoTypeReader.readUInt32(bb); - mediaRate = IsoTypeReader.readFixedPoint1616(bb); - } - this.editListBox = editListBox; - } - - /** - * The segment duration is an integer that specifies the duration - * of this edit segment in units of the timescale in the Movie - * Header Box - * - * @return segment duration in movie timescale - */ - public long getSegmentDuration() { - return segmentDuration; - } - - /** - * The segment duration is an integer that specifies the duration - * of this edit segment in units of the timescale in the Movie - * Header Box - * - * @param segmentDuration new segment duration in movie timescale - */ - public void setSegmentDuration(long segmentDuration) { - this.segmentDuration = segmentDuration; - } - - /** - * The media time is an integer containing the starting time - * within the media of a specific edit segment(in media time - * scale units, in composition time) - * - * @return starting time - */ - public long getMediaTime() { - return mediaTime; - } - - /** - * The media time is an integer containing the starting time - * within the media of a specific edit segment(in media time - * scale units, in composition time) - * - * @param mediaTime starting time - */ - public void setMediaTime(long mediaTime) { - this.mediaTime = mediaTime; - } - - /** - * The media rate specifies the relative rate at which to play the - * media corresponding to a specific edit segment. - * - * @return relative play rate - */ - public double getMediaRate() { - return mediaRate; - } - - /** - * The media rate specifies the relative rate at which to play the - * media corresponding to a specific edit segment. - * - * @param mediaRate new relative play rate - */ - public void setMediaRate(double mediaRate) { - this.mediaRate = mediaRate; - } - - @Override - public boolean equals(Object o) { - if (this == o) return true; - if (o == null || getClass() != o.getClass()) return false; - - Entry entry = (Entry) o; - - if (mediaTime != entry.mediaTime) return false; - if (segmentDuration != entry.segmentDuration) return false; - - return true; - } - - @Override - public int hashCode() { - int result = (int) (segmentDuration ^ (segmentDuration >>> 32)); - result = 31 * result + (int) (mediaTime ^ (mediaTime >>> 32)); - return result; - } - - public void getContent(ByteBuffer bb) { - if (editListBox.getVersion() == 1) { - IsoTypeWriter.writeUInt64(bb, segmentDuration); - IsoTypeWriter.writeUInt64(bb, mediaTime); - } else { - IsoTypeWriter.writeUInt32(bb, l2i(segmentDuration)); - bb.putInt(l2i(mediaTime)); - } - IsoTypeWriter.writeFixedPont1616(bb, mediaRate); - } - - @Override - public String toString() { - return "Entry{" + - "segmentDuration=" + segmentDuration + - ", mediaTime=" + mediaTime + - ", mediaRate=" + mediaRate + - '}'; - } - } -} |