Add HE AAC support to ISO BMFF.

media/mp4/aac_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 "media/mp4/aac.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace media {
+
+namespace mp4 {
+
+TEST(AACTest, BasicProfileTest) {
+  AAC aac;
+  uint8 buffer[] = {0x12, 0x10};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_TRUE(aac.Parse(data));
+  EXPECT_EQ(aac.frequency(), 44100u);
+  EXPECT_EQ(aac.channel_layout(), CHANNEL_LAYOUT_STEREO);
+}
+
+TEST(AACTest, ExtensionTest) {
+  AAC aac;
+  uint8 buffer[] = {0x13, 0x08, 0x56, 0xe5, 0x9d, 0x48, 0x80};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_TRUE(aac.Parse(data));
+  EXPECT_EQ(aac.frequency(), 48000u);
+  EXPECT_EQ(aac.channel_layout(), CHANNEL_LAYOUT_STEREO);
+}
+
+TEST(AACTest, SixChannelTest) {
+  AAC aac;
+  uint8 buffer[] = {0x11, 0xb0};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_TRUE(aac.Parse(data));
+  EXPECT_EQ(aac.frequency(), 48000u);
+  EXPECT_EQ(aac.channel_layout(), CHANNEL_LAYOUT_5_1);
+}
+
+TEST(AACTest, DataTooShortTest) {
+  AAC aac;
+  std::vector<uint8> data;
+
+  EXPECT_FALSE(aac.Parse(data));
+
+  data.push_back(0x12);
+  EXPECT_FALSE(aac.Parse(data));
+}
+
+TEST(AACTest, IncorrectProfileTest) {
+  AAC aac;
+  uint8 buffer[] = {0x0, 0x08};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_FALSE(aac.Parse(data));
+
+  data[0] = 0x08;
+  EXPECT_TRUE(aac.Parse(data));
+
+  data[0] = 0x28;
+  EXPECT_FALSE(aac.Parse(data));
+}
+
+TEST(AACTest, IncorrectFrequencyTest) {
+  AAC aac;
+  uint8 buffer[] = {0x0f, 0x88};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_FALSE(aac.Parse(data));
+
+  data[0] = 0x0e;
+  data[1] = 0x08;
+  EXPECT_TRUE(aac.Parse(data));
+}
+
+TEST(AACTest, IncorrectChannelTest) {
+  AAC aac;
+  uint8 buffer[] = {0x0e, 0x00};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_FALSE(aac.Parse(data));
+
+  data[1] = 0x08;
+  EXPECT_TRUE(aac.Parse(data));
+}
+
+}  // namespace mp4
+
+}  // namespace media