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package com.jogamp.opengl.util.av;
/**
* Generic subtitle event
* <p>
* It is mandatory that the receiver {@link #release()} this instance
* after processing, allowing the resource owner to free or reuse it.
* </p>
*/
public abstract class SubtitleEvent {
/** {@link CodecID} of this subtitle event. */
public final CodecID codec;
/** PTS start time to start showing this subtitle event. */
public final int pts_start;
/**
* PTS start time to end showing this subtitle event.
* <p>
* {@link SubBitmapEvent} often (e.g. {@link CodecID#HDMV_PGS}) have an infinite end-time, i.e. ({@link Integer#MAX_VALUE},
* and shall be overwritten by the next one or {@link SubEmptyEvent}.
* </p>
* @see #isEndDefined()
*/
public final int pts_end;
public SubtitleEvent(final CodecID codec, final int pts_start, final int pts_end) {
this.codec = codec;
this.pts_start = pts_start;
this.pts_end = pts_end;
}
/** Release the resources, if any, back to the owner. */
public abstract void release();
public final int getDuration() { return pts_end - pts_start + 1; }
/** See {@link #pts_end}. */
public final boolean isEndDefined() { return pts_end < Integer.MAX_VALUE; }
/** Returns {@code true} if Text/ASS/SAA subtitle type, o.e. {@link SubTextEvent}. */
public abstract boolean isTextASS();
/** Returns {@code true} if bitmap subtitle type, o.e. {@link SubBitmapEvent}. */
public abstract boolean isBitmap();
/** Returns {@code true} if empty subtitle type, o.e. {@link SubEmptyEvent}. */
public abstract boolean isEmpty();
public final String getStartString() {
final boolean ied = isEndDefined();
return "Sub["+codec+", ["+pts_start+".."+(ied?pts_end:"undef")+"] "+(ied?getDuration():"undef")+" ms";
}
}
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