/*
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * Copyright (c) 1999-2008 Apple Inc.  All Rights Reserved.
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 *
 */

#include "playlist_lists.h"
#include "OS.h"
#include "playlist_utils.h"

// ************************
//
// MEDIA STREAM LIST
//
// ************************

void MediaStreamList::SetUpStreamSSRCs()
{
    UInt32          ssrc;
    MediaStream*    setMediaStreamPtr;
    MediaStream*    aMediaStreamPtr;
    bool            found_duplicate;

    for (int i = 0; i < Size(); i++)
    {   
        setMediaStreamPtr = SetPos(i);
        if (setMediaStreamPtr != NULL) do 
        {  
            ssrc = PlayListUtils::Random() + ( (UInt32) OS::Milliseconds() ); // get a new ssrc
            aMediaStreamPtr = Begin();      // start at the beginning of the stream list
            found_duplicate = false;        // default is don't loop
  
            while (aMediaStreamPtr != NULL) //check all the streams for a duplicate
            {
                if (aMediaStreamPtr->fData.fInitSSRC == ssrc) // it is a duplicate
                {   found_duplicate = true; // set to loop: try a new ssrc 
                    break;
                }

                aMediaStreamPtr = Next(); // keep checking for a duplicate
            }
               
            if (!found_duplicate) // no duplicates found so keep this ssrc
                setMediaStreamPtr->fData.fInitSSRC = ssrc;
                
        } while (found_duplicate); // we have a duplicate ssrc so find another one
    }
}


void MediaStreamList::StreamStarted(SInt64 startTime)
{
    for ( MediaStream *theStreamPtr = Begin(); (theStreamPtr != NULL) ; theStreamPtr = Next() ) 
    {               
        theStreamPtr->StreamStart(startTime);
    }   
}

void MediaStreamList::MovieStarted(SInt64 startTime)
{
    for ( MediaStream *theStreamPtr = Begin(); (theStreamPtr != NULL) ; theStreamPtr = Next() ) 
    {               
        theStreamPtr->MovieStart(startTime);
    } 
}

void MediaStreamList::MovieEnded(SInt64 endTime)
{
    for ( MediaStream *theStreamPtr = Begin(); (theStreamPtr != NULL) ; theStreamPtr = Next() ) 
    {               
        theStreamPtr->MovieEnd(endTime);
    } 
}


SInt16 MediaStreamList::UpdateStreams()
{
    SInt16 err = 0;
    for ( MediaStream *theStreamPtr = Begin(); (theStreamPtr != NULL) ; theStreamPtr = Next() ) 
    {               
        theStreamPtr->ReceiveOnPorts();
    };
    
    return err;
}

void MediaStreamList::UpdateSenderReportsOnStreams()
{
    SInt64 theTime = PlayListUtils::Milliseconds();
    for ( MediaStream *theStreamPtr = Begin(); (theStreamPtr != NULL) ; theStreamPtr = Next() ) 
    {               
        (void) theStreamPtr->UpdateSenderReport(theTime);
    };
    
}