1 files changed, 146 insertions, 0 deletions
diff --git a/chromium/media/formats/mp4/aac_unittest.cc b/chromium/media/formats/mp4/aac_unittest.cc
new file mode 100644
index 00000000000..9d65c31cea5
--- /dev/null
+++ b/chromium/media/formats/mp4/aac_unittest.cc
@@ -0,0 +1,146 @@
+// 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/aac.h"
+
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace media {
+
+namespace mp4 {
+
+class AACTest : public testing::Test {
+ public:
+  bool Parse(const std::vector<uint8>& data) {
+    return aac_.Parse(data, LogCB());
+  }
+
+  AAC aac_;
+};
+
+TEST_F(AACTest, BasicProfileTest) {
+  uint8 buffer[] = {0x12, 0x10};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_TRUE(Parse(data));
+  EXPECT_EQ(aac_.GetOutputSamplesPerSecond(false), 44100);
+  EXPECT_EQ(aac_.GetChannelLayout(false), CHANNEL_LAYOUT_STEREO);
+}
+
+TEST_F(AACTest, ExtensionTest) {
+  uint8 buffer[] = {0x13, 0x08, 0x56, 0xe5, 0x9d, 0x48, 0x80};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_TRUE(Parse(data));
+  EXPECT_EQ(aac_.GetOutputSamplesPerSecond(false), 48000);
+  EXPECT_EQ(aac_.GetOutputSamplesPerSecond(true), 48000);
+  EXPECT_EQ(aac_.GetChannelLayout(false), CHANNEL_LAYOUT_STEREO);
+}
+
+// Test implicit SBR with mono channel config.
+// Mono channel layout should only be reported if SBR is not
+// specified. Otherwise stereo should be reported.
+// See ISO-14496-3 Section 1.6.6.1.2 for details about this special casing.
+TEST_F(AACTest, ImplicitSBR_ChannelConfig0) {
+  uint8 buffer[] = {0x13, 0x08};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_TRUE(Parse(data));
+
+  // Test w/o implict SBR.
+  EXPECT_EQ(aac_.GetOutputSamplesPerSecond(false), 24000);
+  EXPECT_EQ(aac_.GetChannelLayout(false), CHANNEL_LAYOUT_MONO);
+
+  // Test implicit SBR.
+  EXPECT_EQ(aac_.GetOutputSamplesPerSecond(true), 48000);
+  EXPECT_EQ(aac_.GetChannelLayout(true), CHANNEL_LAYOUT_STEREO);
+}
+
+// Tests implicit SBR with a stereo channel config.
+TEST_F(AACTest, ImplicitSBR_ChannelConfig1) {
+  uint8 buffer[] = {0x13, 0x10};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_TRUE(Parse(data));
+
+  // Test w/o implict SBR.
+  EXPECT_EQ(aac_.GetOutputSamplesPerSecond(false), 24000);
+  EXPECT_EQ(aac_.GetChannelLayout(false), CHANNEL_LAYOUT_STEREO);
+
+  // Test implicit SBR.
+  EXPECT_EQ(aac_.GetOutputSamplesPerSecond(true), 48000);
+  EXPECT_EQ(aac_.GetChannelLayout(true), CHANNEL_LAYOUT_STEREO);
+}
+
+TEST_F(AACTest, SixChannelTest) {
+  uint8 buffer[] = {0x11, 0xb0};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_TRUE(Parse(data));
+  EXPECT_EQ(aac_.GetOutputSamplesPerSecond(false), 48000);
+  EXPECT_EQ(aac_.GetChannelLayout(false), CHANNEL_LAYOUT_5_1_BACK);
+}
+
+TEST_F(AACTest, DataTooShortTest) {
+  std::vector<uint8> data;
+
+  EXPECT_FALSE(Parse(data));
+
+  data.push_back(0x12);
+  EXPECT_FALSE(Parse(data));
+}
+
+TEST_F(AACTest, IncorrectProfileTest) {
+  uint8 buffer[] = {0x0, 0x08};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_FALSE(Parse(data));
+
+  data[0] = 0x08;
+  EXPECT_TRUE(Parse(data));
+
+  data[0] = 0x28;
+  EXPECT_FALSE(Parse(data));
+}
+
+TEST_F(AACTest, IncorrectFrequencyTest) {
+  uint8 buffer[] = {0x0f, 0x88};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_FALSE(Parse(data));
+
+  data[0] = 0x0e;
+  data[1] = 0x08;
+  EXPECT_TRUE(Parse(data));
+}
+
+TEST_F(AACTest, IncorrectChannelTest) {
+  uint8 buffer[] = {0x0e, 0x00};
+  std::vector<uint8> data;
+
+  data.assign(buffer, buffer + sizeof(buffer));
+
+  EXPECT_FALSE(Parse(data));
+
+  data[1] = 0x08;
+  EXPECT_TRUE(Parse(data));
+}
+
+}  // namespace mp4
+
+}  // namespace media