From b8ce44aba0970bf0b702d93adf6fcda9307a6350 Mon Sep 17 00:00:00 2001
From: Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com>
Date: Wed, 3 Mar 2021 08:53:58 +0100
Subject: [PATCH] Prevent seg fault if mp4 fragment is not initialized

Related to #900.
---
 packager/media/formats/mp4/fragmenter.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packager/media/formats/mp4/fragmenter.cc b/packager/media/formats/mp4/fragmenter.cc
index a7075e949e..7154c63924 100644
--- a/packager/media/formats/mp4/fragmenter.cc
+++ b/packager/media/formats/mp4/fragmenter.cc
@@ -157,6 +157,9 @@ Status Fragmenter::InitializeFragment(int64_t first_sample_dts) {
 }
 
 Status Fragmenter::FinalizeFragment() {
+  if (!fragment_initialized_)
+    return Status::OK;
+
   if (stream_info_->is_encrypted()) {
     Status status = FinalizeFragmentForEncryption();
     if (!status.ok())