VPLAY-11362:Playback starts at the actual position the user requested

VPLAY-11362:Playback starts at the actual position the user requested 

Reason for change: Adjusted Detla to match PTO and StartTime
Test Procedure: Refer jira ticket VPLAY-11362
Priority: P1

Signed-off-by: srikanthreddybijjam-comcast <[email protected]>

Author: srikanthreddybijjam-comcast

AampMPDParseHelper.cpp

@@ -585,7 +585,7 @@ double AampMPDParseHelper::GetPeriodStartTime(int periodIndex,uint64_t mLastPlay
 						durationTotal += aamp_GetPeriodDuration(idx, mLastPlaylistDownloadTimeMs);
 					}
 					periodStart =  ((double)durationTotal / (double)1000);
-					if(mIsLiveManifest && (periodStart > 0))
+					if(mIsLiveManifest && (periodStart >= 0))
 					{
 						periodStart += mAvailabilityStartTime;
 					}

fragmentcollector_mpd.cpp

@@ -2068,6 +2068,9 @@ double StreamAbstractionAAMP_MPD::SkipFragments( MediaStreamContext *pMediaStrea
 				double offset = (double)(pto - startTime) / (double)segmentTemplates.GetTimescale();
 				AAMPLOG_INFO("Adding PTO offset:%lf to skipTime: %lf", offset, skipTime);
 				skipTime += offset;
+
+				// fragmentTime is reduced from period offset to land on the right epoch value. Later fragmentTime is added with fragmentDuration, so the PTO gap is addressed here.
+				pMediaStreamContext->fragmentTime -= offset;
 			}
 		}
 		do
@@ -2238,6 +2241,8 @@ double StreamAbstractionAAMP_MPD::SkipFragments( MediaStreamContext *pMediaStrea
 						AAMPLOG_INFO("[%s] firstPTS %f, nextPTS %f  skipTime %f  fragmentDuration %f ", pMediaStreamContext->name, firstPTS, nextPTS, skipTime, fragmentDuration);
 						if (updateFirstPTS)
 						{
+							//If we land at the mid of a segment, the position reminder is added to fragment time. This corrects the epoch value to its original segment start time
+							pMediaStreamContext->fragmentTime += mVideoPosRemainder;
 							/*Keep the lower PTS */
 							if ( ((mFirstPTS == 0) || (firstPTS < mFirstPTS)) && (pMediaStreamContext->type == eTRACK_VIDEO))
 							{

priv_aamp.cpp

@@ -7561,7 +7561,6 @@ long long PrivateInstanceAAMP::GetPositionMilliseconds()
 	{
 		mGetPositionMillisecondsMutexSoft.unlock();
 	}
-
 	return positionMilliseconds;
 }