/*
* Copyright (C) 2011 in-somnia
*
* This file is part of JAAD.
*
* JAAD is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* JAAD is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
* Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library.
* If not, see <http://www.gnu.org/licenses/>.
*/
package net.sourceforge.jaad.mp4.boxes.impl.sampleentries;
import net.sourceforge.jaad.mp4.MP4InputStream;
import java.io.IOException;
public class VideoSampleEntry extends SampleEntry {
private int width, height;
private double horizontalResolution, verticalResolution;
private int frameCount, depth;
private String compressorName;
public VideoSampleEntry(String name) {
super(name);
}
@Override
public void decode(MP4InputStream in) throws IOException {
super.decode(in);
in.skipBytes(2); //pre-defined: 0
in.skipBytes(2); //reserved
//3x32 pre_defined
in.skipBytes(4); //pre-defined: 0
in.skipBytes(4); //pre-defined: 0
in.skipBytes(4); //pre-defined: 0
width = (int) in.readBytes(2);
height = (int) in.readBytes(2);
horizontalResolution = in.readFixedPoint(16, 16);
verticalResolution = in.readFixedPoint(16, 16);
in.skipBytes(4); //reserved
frameCount = (int) in.readBytes(2);
final int len = in.read();
compressorName = in.readString(len);
in.skipBytes(31-len);
depth = (int) in.readBytes(2);
in.skipBytes(2); //pre-defined: -1
readChildren(in);
}
/**
* The width is the maximum visual width of the stream described by this
* sample description, in pixels.
*/
public int getWidth() {
return width;
}
/**
* The height is the maximum visual height of the stream described by this
* sample description, in pixels.
*/
public int getHeight() {
return height;
}
/**
* The horizontal resolution of the image in pixels-per-inch, as a floating
* point value.
*/
public double getHorizontalResolution() {
return horizontalResolution;
}
/**
* The vertical resolution of the image in pixels-per-inch, as a floating
* point value.
*/
public double getVerticalResolution() {
return verticalResolution;
}
/**
* The frame count indicates how many frames of compressed video are stored
* in each sample.
*/
public int getFrameCount() {
return frameCount;
}
/**
* The compressor name, for informative purposes.
*/
public String getCompressorName() {
return compressorName;
}
/**
* The depth takes one of the following values
* DEFAULT_DEPTH (0x18) – images are in colour with no alpha
*/
public int getDepth() {
return depth;
}
}