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| -rw-r--r-- | src/jogl/classes/com/jogamp/opengl/util/TimeFrameI.java | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/util/TimeFrameI.java b/src/jogl/classes/com/jogamp/opengl/util/TimeFrameI.java new file mode 100644 index 000000000..e2bca010c --- /dev/null +++ b/src/jogl/classes/com/jogamp/opengl/util/TimeFrameI.java @@ -0,0 +1,80 @@ +/** + * Copyright 2013 JogAmp Community. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, are + * permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this list of + * conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, this list + * of conditions and the following disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * The views and conclusions contained in the software and documentation are those of the + * authors and should not be interpreted as representing official policies, either expressed + * or implied, of JogAmp Community. + */ +package com.jogamp.opengl.util; + +/** + * Integer time frame in milliseconds, maybe specialized for texture/video, audio, .. animated content. + * <p> + * Type and value range has been chosen to suit embedded CPUs + * and characteristics of audio / video streaming and animations. + * Milliseconds of type integer with a maximum value of {@link Integer#MAX_VALUE} + * will allow tracking time up 2,147,483.647 seconds or + * 24 days 20 hours 31 minutes and 23 seconds. + * </p> + * <p> + * Milliseconds granularity is also more than enough to deal with A-V synchronization, + * where the threshold usually lies within 22ms. + * </p> + * <p> + * Milliseconds granularity for displaying video frames might seem inaccurate + * for each single frame, i.e. 60Hz != 16ms, however, accumulated values diminish + * this error and vertical sync is achieved by build-in V-Sync of the video drivers. + * </p> + */ +public class TimeFrameI { + /** Constant marking an invalid PTS, i.e. Integer.MIN_VALUE == 0x80000000 == {@value}. Sync w/ native code. */ + public static final int INVALID_PTS = 0x80000000; + + /** Constant marking the end of the stream PTS, i.e. Integer.MIN_VALUE - 1 == 0x7FFFFFFF == {@value}. Sync w/ native code. */ + public static final int END_OF_STREAM_PTS = 0x7FFFFFFF; + + protected int pts; + protected int duration; + + public TimeFrameI() { + pts = INVALID_PTS; + duration = 0; + } + public TimeFrameI(int pts, int duration) { + this.pts = pts; + this.duration = duration; + } + + /** Get this frame's presentation timestamp (PTS) in milliseconds. */ + public final int getPTS() { return pts; } + /** Set this frame's presentation timestamp (PTS) in milliseconds. */ + public final void setPTS(int pts) { this.pts = pts; } + /** Get this frame's duration in milliseconds. */ + public final int getDuration() { return duration; } + /** Set this frame's duration in milliseconds. */ + public final void setDuration(int duration) { this.duration = duration; } + + public String toString() { + return "TimeFrame[pts " + pts + " ms, l " + duration + " ms]"; + } +} |