/**

 * Java RTP Library (jlibrtp)

 * Copyright (C) 2006 Arne Kepp

 * 

 * This library 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 2.1 of the License, or (at your option) any later version.

 *

 * This library 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, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

 */

package jlibrtp;

/**

 * This is the callback interface for the AVPF profile (RFC 4585)

 * 

 * It is optional, you do not have to register it.

 * 

 * If there are specific events you wish to ignore,

 * you can simply implement empty functions.

 * 

 * These are all syncrhonous, make sure to return quickly

 * or do the handling in a new thread.

 * 

 * @author Arne Kepp

 */

public interface RTCPAVPFIntf {	

	/**

	 * This function is called when a 

	 * Picture Loss Indication (PLI, FMT = 1) is received

	 * 

	 * @param ssrcPacketSender the SSRC of the participant reporting loss of picture

	 */

	public void PSFBPktPictureLossReceived(

			long ssrcPacketSender);

	/**

	 * This function is called when a

	 * Slice Loss Indication (SLI, FMT=2) is received

	 * 

	 * @param ssrcPacketSender the SSRC of the participant reporting loss of slice(s)

	 * @param sliceFirst macroblock address of first macroblock

	 * @param sliceNumber number of lost macroblocks, in scan order

	 * @param slicePictureId the six least significant bits of the picture identifier 

	 */

	public void PSFBPktSliceLossIndic(

			long ssrcPacketSender,

			int[] sliceFirst, int[] sliceNumber, int[] slicePictureId);

	/**

	 * This function is called when a

	 * Reference Picture Selection Indication (RPSI, FMT=3) is received

	 * 

	 * @param ssrcPacketSender the SSRC of the participant reporting the selection

	 * @param rpsiPayloadType the RTP payload type related to the RPSI bit string

	 * @param rpsiBitString the RPSI information as natively defined by the video codec

	 * @param rpsiPaddingBits the number of padding bits at the end of the string

	 */

	public void PSFBPktRefPictureSelIndic(

			long ssrcPacketSender,

			int rpsiPayloadType, byte[] rpsiBitString, int rpsiPaddingBits);

	/**

	 * This function is called when a 

	 * Transport Layer Feedback Messages is received

	 * 

	 * @param ssrcPacketSender

	 * @param alfBitString

	 */

	public void PSFBPktAppLayerFBReceived(

			long ssrcPacketSender,

			byte[] alfBitString);

	/**

	 * This function is called when a 

	 * Transport Layer Feedback Messages is received

	 * 

	 * @param ssrcPacketSender 

	 * @param FMT 1: NACK, 0,2-30: unassigned, 31: reserved

	 * @param packetID the RTP sequence number of the lost packet

	 * @param bitmaskLostPackets the bitmask of following lost packets

	 */

	public void RTPFBPktReceived(

			long ssrcPacketSender,

			int FMT, int[] packetID, int[] bitmaskLostPackets);

}