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// 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.GetOutputSamplesPerSecond(false), 44100);
EXPECT_EQ(aac.GetChannelLayout(false), 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.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(AACTest, ImplicitSBR_ChannelConfig0) {
AAC aac;
uint8 buffer[] = {0x13, 0x08};
std::vector<uint8> data;
data.assign(buffer, buffer + sizeof(buffer));
EXPECT_TRUE(aac.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(AACTest, ImplicitSBR_ChannelConfig1) {
AAC aac;
uint8 buffer[] = {0x13, 0x10};
std::vector<uint8> data;
data.assign(buffer, buffer + sizeof(buffer));
EXPECT_TRUE(aac.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(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.GetOutputSamplesPerSecond(false), 48000);
EXPECT_EQ(aac.GetChannelLayout(false), 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
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