From b5212db69734962f55e1493d3e696794172ced51 Mon Sep 17 00:00:00 2001
From: James Dong <jdong@google.com>
Date: Fri, 13 May 2011 14:41:21 -0700
Subject: Track id really starts with 1, not 0

Change-Id: I55dcfdc2dc2a64285dfa93024f7b885210cc827e
---
 media/libstagefright/MPEG4Writer.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index fd60f06..fdd2f68 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -2491,7 +2491,7 @@ void MPEG4Writer::Track::writeTkhdBox(time_t now) {
     mOwner->writeInt32(0x07);          // version=0, flags=7
     mOwner->writeInt32(now);           // creation time
     mOwner->writeInt32(now);           // modification time
-    mOwner->writeInt32(mTrackId);
+    mOwner->writeInt32(mTrackId + 1);  // track id starts with 1
     mOwner->writeInt32(0);             // reserved
     int64_t trakDurationUs = getDurationUs();
     int32_t mvhdTimeScale = mOwner->getTimeScale();
-- 
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