Handle duplicate media track ids in FFmpegDemuxer

media/filters/ffmpeg_demuxer_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <deque>
 #include <string>
@@ skipping 1328 matching lines @@
   EXPECT_EQ(video_track2.language(), "und");
 
   const MediaTrack& audio_track2 = *(media_tracks_->tracks()[3]);
   EXPECT_EQ(audio_track2.type(), MediaTrack::Audio);
   EXPECT_EQ(audio_track2.bytestream_track_id(), 4);
   EXPECT_EQ(audio_track2.kind(), "main");
   EXPECT_EQ(audio_track2.label(), "SoundHandler");
   EXPECT_EQ(audio_track2.language(), "und");
 }
 
+TEST_F(FFmpegDemuxerTest, Read_Mp4_Crbug657437) {
+  CreateDemuxer("crbug657437.mp4");
+  InitializeDemuxer();
+}
+
 #endif  // defined(USE_PROPRIETARY_CODECS)
 
 TEST_F(FFmpegDemuxerTest, Read_Webm_Multiple_Tracks) {
   CreateDemuxer("multitrack-3video-2audio.webm");
   InitializeDemuxer();
 
   EXPECT_EQ(media_tracks_->tracks().size(), 5u);
 
   const MediaTrack& video_track1 = *(media_tracks_->tracks()[0]);
   EXPECT_EQ(video_track1.type(), MediaTrack::Video);
@@ skipping 31 matching lines @@
 
   const MediaTrack& audio_track = *(media_tracks_->tracks()[1]);
   EXPECT_EQ(audio_track.type(), MediaTrack::Audio);
   EXPECT_EQ(audio_track.bytestream_track_id(), 2);
   EXPECT_EQ(audio_track.kind(), "main");
   EXPECT_EQ(audio_track.label(), "");
   EXPECT_EQ(audio_track.language(), "");
 }
 
 }  // namespace media