86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
// Copyright 2016 Google LLC. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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#include <gtest/gtest.h>
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#include "packager/media/codecs/ec3_audio_util.h"
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namespace shaka {
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namespace media {
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TEST(EC3AudioUtilTest, ChannelTest1) {
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// audio_coding_mode is 7, which is Left, Center, Right, Left surround, Right
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// surround. No dependent substreams. LFE channel on.
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const std::vector<uint8_t> ec3_data = {0, 0, 0, 0x0f, 0, 0x02, 0x10};
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uint32_t channel_map;
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uint32_t ec3_channel_mpeg_value;
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uint32_t ec3_joc_complexity;
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EXPECT_TRUE(CalculateEC3ChannelMap(ec3_data, &channel_map));
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EXPECT_EQ(0xF801u, channel_map);
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EXPECT_EQ(6u, GetEc3NumChannels(ec3_data));
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EXPECT_TRUE(CalculateEC3ChannelMPEGValue(ec3_data, &ec3_channel_mpeg_value));
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EXPECT_EQ(6u, ec3_channel_mpeg_value);
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EXPECT_TRUE(GetEc3JocComplexity(ec3_data, &ec3_joc_complexity));
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EXPECT_EQ(0u, ec3_joc_complexity);
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}
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TEST(EC3AudioUtilTest, ChannelTest2) {
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// audio_coding_mode is 2, which is Left and Right. No dependent substreams.
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// LFE channel off.
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const std::vector<uint8_t> ec3_data = {0, 0, 0, 0x04, 0};
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uint32_t channel_map;
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uint32_t ec3_channel_mpeg_value;
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uint32_t ec3_joc_complexity;
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EXPECT_TRUE(CalculateEC3ChannelMap(ec3_data, &channel_map));
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EXPECT_EQ(0xA000u, channel_map);
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EXPECT_EQ(2u, GetEc3NumChannels(ec3_data));
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EXPECT_TRUE(CalculateEC3ChannelMPEGValue(ec3_data, &ec3_channel_mpeg_value));
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EXPECT_EQ(2u, ec3_channel_mpeg_value);
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EXPECT_TRUE(GetEc3JocComplexity(ec3_data, &ec3_joc_complexity));
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EXPECT_EQ(0u, ec3_joc_complexity);
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}
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TEST(EC3AudioUtilTest, ChannelTest3) {
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// audio_coding_mode is 3, which is Left, Center, and Right. Dependent
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// substreams layout is 0b100000011, which is Left center/ Right center pair,
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// Left rear surround/ Right rear surround pair, LFE2 on. LFE channel on.
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const std::vector<uint8_t> ec3_data = {0, 0, 0, 0x07, 0x07, 0x03};
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uint32_t channel_map;
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uint32_t ec3_channel_mpeg_value;
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uint32_t ec3_joc_complexity;
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EXPECT_TRUE(CalculateEC3ChannelMap(ec3_data, &channel_map));
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EXPECT_EQ(0xE603u, channel_map);
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EXPECT_EQ(9u, GetEc3NumChannels(ec3_data));
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EXPECT_TRUE(CalculateEC3ChannelMPEGValue(ec3_data, &ec3_channel_mpeg_value));
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EXPECT_EQ(0xFFFFFFFFu, ec3_channel_mpeg_value);
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EXPECT_TRUE(GetEc3JocComplexity(ec3_data, &ec3_joc_complexity));
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EXPECT_EQ(0u, ec3_joc_complexity);
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}
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TEST(EC3AudioUtilTest, ChannelTest4) {
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// audio_coding_mode is 7, which is Left, Center, Right, Left surround and
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// Right surround. LFE channel on.
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const std::vector<uint8_t> ec3_data = {0x14, 0x00, 0x20, 0x0f, 0x00, 0x01,
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0x10};
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uint32_t channel_map;
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uint32_t ec3_channel_mpeg_value;
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uint32_t ec3_joc_complexity;
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EXPECT_TRUE(CalculateEC3ChannelMap(ec3_data, &channel_map));
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EXPECT_EQ(0xF801u, channel_map);
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EXPECT_EQ(6u, GetEc3NumChannels(ec3_data));
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EXPECT_TRUE(CalculateEC3ChannelMPEGValue(ec3_data, &ec3_channel_mpeg_value));
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EXPECT_EQ(6u, ec3_channel_mpeg_value);
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EXPECT_TRUE(GetEc3JocComplexity(ec3_data, &ec3_joc_complexity));
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EXPECT_EQ(16u, ec3_joc_complexity);
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}
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} // namespace media
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} // namespace shaka
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