MSE: Recognize "unknown duration" in ISOBMFF mvhd version 0, duration max uint32 case

media/formats/mp4/mp4_stream_parser_unittest.cc

 // Copyright 2014 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 "media/formats/mp4/mp4_stream_parser.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 272 matching lines @@
   scoped_refptr<DecoderBuffer> buffer =
       ReadTestDataFile("bear-1280x720-av_frag.mp4");
   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
                                  buffer->data_size(),
                                  512));
   EXPECT_TRUE(AppendDataInPieces(buffer->data(),
                                  buffer->data_size(),
                                  512));
 }
 
+TEST_F(MP4StreamParserTest, UnknownDuration_V0_AllBitsSet) {
+  EXPECT_MEDIA_LOG(VideoCodecLog("avc1.64001F"));
+  EXPECT_MEDIA_LOG(AudioCodecLog("mp4a.40.2"));
+  InitializeParser();
+  // 32 bit duration field in mvhd box, all bits set.
+  ParseMP4File(
+      "bear-1280x720-av_frag-initsegment-mvhd_version_0-mvhd_duration_bits_all_"

[xhwang, 2016/09/24 06:01:19]

Could you please update media/test/data/README to provide some information about
this new test file, e.g. how it's created, what's special etc.

[wolenetz, 2016/09/26 19:35:24]

Done.

+      "set.mp4",
+      512);
+}
+
 TEST_F(MP4StreamParserTest, MPEG2_AAC_LC) {
   InSequence s;
   std::set<int> audio_object_types;
   audio_object_types.insert(kISO_13818_7_AAC_LC);
   parser_.reset(new MP4StreamParser(audio_object_types, false));
   EXPECT_MEDIA_LOG(AudioCodecLog("mp4a.67"));
   EXPECT_MEDIA_LOG(AudioCodecLog("mp4a.40.2"));
   auto params = GetDefaultInitParametersExpectations();
   params.detected_video_track_count = 0;
   InitializeParserWithInitParametersExpectations(params);
@@ skipping 267 matching lines @@
   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(), "");
   EXPECT_EQ(audio_track2.label(), "SoundHandler");
   EXPECT_EQ(audio_track2.language(), "und");
 }
 
 }  // namespace mp4
 }  // namespace media