From 50a8b610c4f2c356c9893a8803b8caeb5a66c35f Mon Sep 17 00:00:00 2001
From: Daniel Cohen Gindi <danielgindi@gmail.com>
Date: Sun, 14 Dec 2014 10:16:45 +0200
Subject: [PATCH] Provide a mechanism to hint for correct duration. For cases
 where duration can't be calculated accurately

---
 StreamingKit/StreamingKit/STKDataSource.h | 1 +
 StreamingKit/StreamingKit/STKQueueEntry.h | 1 +
 StreamingKit/StreamingKit/STKQueueEntry.m | 3 +++
 3 files changed, 5 insertions(+)
 mode change 100644 => 100755 StreamingKit/StreamingKit/STKDataSource.h
 mode change 100644 => 100755 StreamingKit/StreamingKit/STKQueueEntry.h
 mode change 100644 => 100755 StreamingKit/StreamingKit/STKQueueEntry.m

diff --git a/StreamingKit/StreamingKit/STKDataSource.h b/StreamingKit/StreamingKit/STKDataSource.h
old mode 100644
new mode 100755
index 69c2961..15c3c34
--- a/StreamingKit/StreamingKit/STKDataSource.h
+++ b/StreamingKit/StreamingKit/STKDataSource.h
@@ -48,6 +48,7 @@
 @property (readonly) SInt64 position;
 @property (readonly) SInt64 length;
 @property (readonly) BOOL hasBytesAvailable;
+@property (nonatomic, readwrite, assign) double durationHint;
 @property (readwrite, unsafe_unretained) id<STKDataSourceDelegate> delegate;
 
 -(BOOL) registerForEvents:(NSRunLoop*)runLoop;
diff --git a/StreamingKit/StreamingKit/STKQueueEntry.h b/StreamingKit/StreamingKit/STKQueueEntry.h
old mode 100644
new mode 100755
index 78e3784..3ae6f6a
--- a/StreamingKit/StreamingKit/STKQueueEntry.h
+++ b/StreamingKit/StreamingKit/STKQueueEntry.h
@@ -28,6 +28,7 @@
     volatile int processedPacketsCount;
 	volatile int processedPacketsSizeTotal;
     AudioStreamBasicDescription audioStreamBasicDescription;
+    double durationHint;
 }
 
 @property (readonly) UInt64 audioDataLengthInBytes;
diff --git a/StreamingKit/StreamingKit/STKQueueEntry.m b/StreamingKit/StreamingKit/STKQueueEntry.m
old mode 100644
new mode 100755
index 2b6de04..250b0c1
--- a/StreamingKit/StreamingKit/STKQueueEntry.m
+++ b/StreamingKit/StreamingKit/STKQueueEntry.m
@@ -23,6 +23,7 @@
         self.dataSource = dataSourceIn;
         self.queueItemId = queueItemIdIn;
         self->lastFrameQueued = -1;
+        self->durationHint = dataSourceIn.durationHint;
     }
     
     return self;
@@ -60,6 +61,8 @@
 
 -(double) duration
 {
+    if (durationHint > 0.0) return durationHint;
+    
     if (self->sampleRate <= 0)
     {
         return 0;