Implement reading of media track info from WebM and MP4 containers

media/formats/webm/webm_stream_parser_unittest.cc

Index: media/formats/webm/webm_stream_parser_unittest.cc
diff --git a/media/formats/webm/webm_stream_parser_unittest.cc b/media/formats/webm/webm_stream_parser_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0386e8fb06125cc368a1664c3764bba8c4548d19
--- /dev/null
+++ b/media/formats/webm/webm_stream_parser_unittest.cc
@@ -0,0 +1,99 @@
+// Copyright 2016 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 "base/bind.h"
+#include "media/base/decoder_buffer.h"
+#include "media/base/media_tracks.h"
+#include "media/base/mock_media_log.h"
+#include "media/base/test_data_util.h"
+#include "media/base/text_track_config.h"
+#include "media/formats/webm/webm_stream_parser.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using testing::_;
+
+namespace media {
+
+class WebMStreamParserTest : public testing::Test {
+ public:
+  WebMStreamParserTest()
+      : media_log_(new testing::StrictMock<MockMediaLog>()) {}
+
+ protected:
+  void ParseWebMFile(const std::string& filename) {
+    scoped_refptr<DecoderBuffer> buffer = ReadTestDataFile(filename);
+    parser_.reset(new WebMStreamParser());
+    Demuxer::EncryptedMediaInitDataCB encrypted_media_init_data_cb =
+        base::Bind(&WebMStreamParserTest::OnEncryptedMediaInitData,
+                   base::Unretained(this));
+
+    EXPECT_CALL(*this, InitCB(_));
+    EXPECT_CALL(*this, NewMediaSegmentCB()).Times(testing::AnyNumber());
+    EXPECT_CALL(*this, EndMediaSegmentCB()).Times(testing::AnyNumber());
+    EXPECT_CALL(*this, NewBuffersCB(_, _, _))
+        .Times(testing::AnyNumber())
+        .WillRepeatedly(testing::Return(true));
+    parser_->Init(
+        base::Bind(&WebMStreamParserTest::InitCB, base::Unretained(this)),
+        base::Bind(&WebMStreamParserTest::NewConfigCB, base::Unretained(this)),
+        base::Bind(&WebMStreamParserTest::NewBuffersCB, base::Unretained(this)),
+        true,  // ignore_text_track
+        encrypted_media_init_data_cb,
+        base::Bind(&WebMStreamParserTest::NewMediaSegmentCB,
+                   base::Unretained(this)),
+        base::Bind(&WebMStreamParserTest::EndMediaSegmentCB,
+                   base::Unretained(this)),
+        media_log_);
+    bool result = parser_->Parse(buffer->data(), buffer->data_size());
+    EXPECT_TRUE(result);
+  }
+
+  MOCK_METHOD1(InitCB, void(const StreamParser::InitParameters& params));
+
+  bool NewConfigCB(scoped_ptr<MediaTracks> tracks,
+                   const StreamParser::TextTrackConfigMap& text_track_map) {
+    DCHECK(tracks.get());
+    media_tracks_ = std::move(tracks);
+    return true;
+  }
+
+  MOCK_METHOD3(NewBuffersCB,
+               bool(const StreamParser::BufferQueue&,
+                    const StreamParser::BufferQueue&,
+                    const StreamParser::TextBufferQueueMap&));
+  MOCK_METHOD2(OnEncryptedMediaInitData,
+               void(EmeInitDataType init_data_type,
+                    const std::vector<uint8_t>& init_data));
+  MOCK_METHOD0(NewMediaSegmentCB, void());
+  MOCK_METHOD0(EndMediaSegmentCB, void());
+
+  scoped_refptr<testing::StrictMock<MockMediaLog>> media_log_;
+  scoped_ptr<WebMStreamParser> parser_;
+  scoped_ptr<MediaTracks> media_tracks_;
+};
+
+TEST_F(WebMStreamParserTest, VerifyMediaTrackMetadata) {
+  EXPECT_MEDIA_LOG(testing::HasSubstr("Estimating WebM block duration"))
+      .Times(testing::AnyNumber());
+  ParseWebMFile("bear.webm");
+  EXPECT_NE(media_tracks_.get(), nullptr);
+
+  EXPECT_EQ(media_tracks_->tracks().size(), 2u);
+
+  const MediaTrack& video_track = *(media_tracks_->tracks()[0]);
+  EXPECT_EQ(video_track.type(), MediaTrack::Video);
+  EXPECT_EQ(video_track.id(), "1");
+  EXPECT_EQ(video_track.kind(), "main");
+  EXPECT_EQ(video_track.label(), "");
+  EXPECT_EQ(video_track.language(), "und");
+
+  const MediaTrack& audio_track = *(media_tracks_->tracks()[1]);
+  EXPECT_EQ(audio_track.type(), MediaTrack::Audio);
+  EXPECT_EQ(audio_track.id(), "2");
+  EXPECT_EQ(audio_track.kind(), "main");
+  EXPECT_EQ(audio_track.label(), "");
+  EXPECT_EQ(audio_track.language(), "und");
+}
+
+}  // namespace media