Bug 1325707: P1. Check returned value. r=gerald

This is really just for cleanliness perspective, as it can never happen, we always check that demuxing a packet succeeded first.

MozReview-Commit-ID: FQ1yz16m9Ix

--HG--
extra : rebase_source : 722ab3a828cadb07022a95b3ae456ef09781e61d

dom/media/ogg/OggCodecState.cpp

@@ -1305,6 +1305,9 @@ OpusState::PacketOutAsMediaRawData()
   }
 
   RefPtr<MediaRawData> data = OggCodecState::PacketOutAsMediaRawData();
+  if (!data) {
+    return nullptr;
+  }
 
   if (data->mEOS && mPrevPacketGranulepos != -1) {
     // If this is the last packet, perform end trimming.

dom/media/ogg/OggDemuxer.cpp

@@ -1342,6 +1342,9 @@ OggTrackDemuxer::NextSample()
   bool eos = packet->e_o_s;
   OggCodecState* state = mParent->GetTrackCodecState(mType);
   RefPtr<MediaRawData> data = state->PacketOutAsMediaRawData();
+  if (!data) {
+    return nullptr;
+  }
   if (mType == TrackInfo::kAudioTrack) {
     data->mTrackInfo = mParent->mSharedAudioTrackInfo;
   }