223 lines
8.4 KiB
C++
223 lines
8.4 KiB
C++
// Copyright 2024 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 <packager/media/codecs/iamf_audio_util.h>
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#include <gtest/gtest.h>
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#include <packager/media/base/stream_info.h>
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#include <packager/media/test/test_data_util.h>
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namespace shaka {
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namespace media {
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namespace {
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const int kSimpleProfile = 0;
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const int kBaseProfile = 1;
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const std::vector<uint8_t> kIacbBase = {
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0x01, // configurationVersion
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0x20 // configOBUs_size
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};
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const std::vector<uint8_t> kSimpleIaSequenceObu = {
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// OBU header
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0xf8, // obu_type (5 bits), obu_redundant_copy (1 bit),
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// obu_trimming_status_flag (1 bit), obu_extension_flag (1 bit)
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0x06, // obu_size
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// IASequenceHeaderOBU
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0x69, 0x61, 0x6d, 0x66, // ia_code
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0x00, // primary_profile = simple
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0x00 // additional_profile = simple
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};
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const std::vector<uint8_t> kOpusCodecConfigObu = {
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// OBU header
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0x00, // obu_type (5 bits), obu_redundant_copy (1 bit),
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// obu_trimming_status_flag (1 bit), obu_extension_flag (1 bit)
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0x0A, // obu_size
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// CodecConfigOBU
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0xc8, 0x01, // codec_config_id
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0x4f, 0x70, 0x75, 0x73, // codec_id = 'Opus'
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0x46, 0x41, 0x4B, 0x45 // 'F''A''K''E' remainder codec config OBU
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};
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const std::vector<uint8_t> kFakeAudioElementObu = {
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// OBU header
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0x08, // obu_type (5 bits), obu_redundant_copy (1 bit),
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// obu_trimming_status_flag (1 bit), obu_extension_flag (1 bit)
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0x04, // obu_size
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// 'F''A''K''E' AudioElementOBU
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0x46, 0x41, 0x4B, 0x45};
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const std::vector<uint8_t> kFakeMixPresentationObu = {
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// OBU header
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0x10, // obu_type (5 bits), obu_redundant_copy (1 bit),
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// obu_trimming_status_flag (1 bit), obu_extension_flag (1 bit)
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0x04, // obu_size
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// 'F''A''K''E' MixPresentationOBU
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0x46, 0x41, 0x4B, 0x45};
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} // namespace
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TEST(IamfAudioUtilTest, GetCodecStringInfoWithSimpleProfiles) {
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std::vector<uint8_t> iacb;
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iacb.insert(iacb.end(), kIacbBase.begin(), kIacbBase.end());
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iacb.insert(iacb.end(), kSimpleIaSequenceObu.begin(),
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kSimpleIaSequenceObu.end());
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iacb.insert(iacb.end(), kOpusCodecConfigObu.begin(),
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kOpusCodecConfigObu.end());
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iacb.insert(iacb.end(), kFakeAudioElementObu.begin(),
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kFakeAudioElementObu.end());
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iacb.insert(iacb.end(), kFakeMixPresentationObu.begin(),
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kFakeMixPresentationObu.end());
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uint8_t codec_string_info;
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uint8_t expected_codec_string_info =
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((kSimpleProfile << 6) | // primary_profile
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((kSimpleProfile << 4) & 0x3F) | // additional_profile
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((kCodecOpus - kCodecAudio) & 0xF)); // IAMF codec
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ASSERT_TRUE(GetIamfCodecStringInfo(iacb, codec_string_info));
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EXPECT_EQ(expected_codec_string_info, codec_string_info);
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}
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TEST(IamfAudioUtilTest, CodecStringInfoTestWithBaseProfiles) {
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const std::vector<uint8_t> base_ia_sequence_obu = {
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// OBU header
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0xf8, // obu_type (5 bits), obu_redundant_copy (1 bit),
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// obu_trimming_status_flag (1 bit), obu_extension_flag (1 bit)
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0x06, // obu_size
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// IASequenceHeaderOBU
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0x69, 0x61, 0x6d, 0x66, // ia_code
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0x01, // primary_profile = base
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0x01 // additional_profile = base
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};
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std::vector<uint8_t> iacb;
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iacb.insert(iacb.end(), kIacbBase.begin(), kIacbBase.end());
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iacb.insert(iacb.end(), base_ia_sequence_obu.begin(),
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base_ia_sequence_obu.end());
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iacb.insert(iacb.end(), kOpusCodecConfigObu.begin(),
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kOpusCodecConfigObu.end());
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iacb.insert(iacb.end(), kFakeAudioElementObu.begin(),
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kFakeAudioElementObu.end());
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iacb.insert(iacb.end(), kFakeMixPresentationObu.begin(),
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kFakeMixPresentationObu.end());
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uint8_t codec_string_info;
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uint8_t expected_codec_string_info =
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((kBaseProfile << 6) | // primary_profile = 1
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((kBaseProfile << 4) & 0x3F) | // additional_profile = 1
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((kCodecOpus - kCodecAudio) & 0xF)); // IAMF codec
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ASSERT_TRUE(GetIamfCodecStringInfo(iacb, codec_string_info));
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EXPECT_EQ(expected_codec_string_info, codec_string_info);
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}
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TEST(IamfAudioUtilTest, CodecStringInfoWithPcm) {
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const std::vector<uint8_t> pcm_codec_config_obu = {
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// OBU header
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0x00, // obu_type (5 bits), obu_redundant_copy (1 bit),
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// obu_trimming_status_flag (1 bit), obu_extension_flag (1 bit)
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0x0A, // obu_size
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// CodecConfigOBU
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0xc8, 0x01, // codec_config_id
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0x69, 0x70, 0x63, 0x6d, // codec_id = 'ipcm'
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0x46, 0x41, 0x4B, 0x45 // 'F''A''K''E' remainder codec config OBU
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};
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std::vector<uint8_t> iacb;
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iacb.insert(iacb.end(), kIacbBase.begin(), kIacbBase.end());
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iacb.insert(iacb.end(), kSimpleIaSequenceObu.begin(),
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kSimpleIaSequenceObu.end());
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iacb.insert(iacb.end(), pcm_codec_config_obu.begin(),
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pcm_codec_config_obu.end());
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iacb.insert(iacb.end(), kFakeAudioElementObu.begin(),
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kFakeAudioElementObu.end());
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iacb.insert(iacb.end(), kFakeMixPresentationObu.begin(),
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kFakeMixPresentationObu.end());
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uint8_t codec_string_info;
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uint8_t expected_codec_string_info =
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((kSimpleProfile << 6) | // primary_profile
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((kSimpleProfile << 4) & 0x3F) | // additional_profile
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((kCodecPcm - kCodecAudio) & 0xF)); // IAMF codec
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ASSERT_TRUE(GetIamfCodecStringInfo(iacb, codec_string_info));
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EXPECT_EQ(expected_codec_string_info, codec_string_info);
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}
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TEST(IamfAudioUtilTest, CodecStringInfoWithMp4a) {
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const std::vector<uint8_t> mp4a_codec_config_obu = {
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// OBU header
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0x00, // obu_type (5 bits), obu_redundant_copy (1 bit),
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// obu_trimming_status_flag (1 bit), obu_extension_flag (1 bit)
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0x0A, // obu_size
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// CodecConfigOBU
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0xc8, 0x01, // codec_config_id
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0x6d, 0x70, 0x34, 0x61, // codec_id = 'mp4a'
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0x46, 0x41, 0x4B, 0x45 // 'F''A''K''E' remainder codec config OBU
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};
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std::vector<uint8_t> iacb;
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iacb.insert(iacb.end(), kIacbBase.begin(), kIacbBase.end());
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iacb.insert(iacb.end(), kSimpleIaSequenceObu.begin(),
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kSimpleIaSequenceObu.end());
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iacb.insert(iacb.end(), mp4a_codec_config_obu.begin(),
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mp4a_codec_config_obu.end());
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iacb.insert(iacb.end(), kFakeAudioElementObu.begin(),
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kFakeAudioElementObu.end());
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iacb.insert(iacb.end(), kFakeMixPresentationObu.begin(),
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kFakeMixPresentationObu.end());
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uint8_t codec_string_info;
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uint8_t expected_codec_string_info =
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((kSimpleProfile << 6) | // primary_profile
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((kSimpleProfile << 4) & 0x3F) | // additional_profile
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((kCodecAAC - kCodecAudio) & 0xF)); // IAMF codec
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ASSERT_TRUE(GetIamfCodecStringInfo(iacb, codec_string_info));
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EXPECT_EQ(expected_codec_string_info, codec_string_info);
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}
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TEST(IamfAudioUtilTest, CodecStringInfoWithFlac) {
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const std::vector<uint8_t> flac_codec_config_obu = {
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// OBU header
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0x00, // obu_type (5 bits), obu_redundant_copy (1 bit),
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// obu_trimming_status_flag (1 bit), obu_extension_flag (1 bit)
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0x0A, // obu_size
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// CodecConfigOBU
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0xc8, 0x01, // codec_config_id
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0x66, 0x4C, 0x61, 0x43, // codec_id = 'fLaC'
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0x46, 0x41, 0x4B, 0x45 // 'F''A''K''E' remainder codec config OBU
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};
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std::vector<uint8_t> iacb;
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iacb.insert(iacb.end(), kIacbBase.begin(), kIacbBase.end());
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iacb.insert(iacb.end(), kSimpleIaSequenceObu.begin(),
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kSimpleIaSequenceObu.end());
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iacb.insert(iacb.end(), flac_codec_config_obu.begin(),
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flac_codec_config_obu.end());
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iacb.insert(iacb.end(), kFakeAudioElementObu.begin(),
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kFakeAudioElementObu.end());
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iacb.insert(iacb.end(), kFakeMixPresentationObu.begin(),
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kFakeMixPresentationObu.end());
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uint8_t codec_string_info;
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uint8_t expected_codec_string_info =
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((kSimpleProfile << 6) | // primary_profile
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((kSimpleProfile << 4) & 0x3F) | // additional_profile
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((kCodecFlac - kCodecAudio) & 0xF)); // IAMF codec
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ASSERT_TRUE(GetIamfCodecStringInfo(iacb, codec_string_info));
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EXPECT_EQ(expected_codec_string_info, codec_string_info);
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}
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} // namespace media
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} // namespace shaka
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