From 581cb1fc4dd414b2b012993885b8902e35506892 Mon Sep 17 00:00:00 2001
From: Thomas Inskip <tinskip@google.com>
Date: Tue, 2 Jun 2015 12:11:23 -0700
Subject: [PATCH] Added sample_description_index to 'tfhd' box for DASH-IF IOP
 compatiblity.

Change-Id: I1bb24f3b3f258625ce6958d6510aab49bedbf719
---
 packager/media/formats/mp4/fragmenter.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packager/media/formats/mp4/fragmenter.cc b/packager/media/formats/mp4/fragmenter.cc
index 531660106f..fccdec7d31 100644
--- a/packager/media/formats/mp4/fragmenter.cc
+++ b/packager/media/formats/mp4/fragmenter.cc
@@ -77,7 +77,9 @@ Status Fragmenter::InitializeFragment(int64_t first_sample_dts) {
   traf_->runs.clear();
   traf_->runs.resize(1);
   traf_->runs[0].flags = TrackFragmentRun::kDataOffsetPresentMask;
-  traf_->header.flags = TrackFragmentHeader::kDefaultBaseIsMoofMask;
+  traf_->header.sample_description_index = 1;  // 1-based.
+  traf_->header.flags = TrackFragmentHeader::kDefaultBaseIsMoofMask |
+                        TrackFragmentHeader::kSampleDescriptionIndexPresentMask;
   fragment_duration_ = 0;
   earliest_presentation_time_ = kInvalidTime;
   first_sap_time_ = kInvalidTime;