Hello, How to turn MP3 after mixing

[Crz-GitHub]

Hello, How to turn MP3 after mixing

[Piasy]

Not sure what do you mean.

[Crz-GitHub]

Running Demo throws an error

[Crz-GitHub]

Build command failed.
Error while executing process D:\Work\Android\Sdk\cmake\3.10.2.4988404\bin\ninja.exe with arguments {-C D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a audio_mixer}
ninja: Entering directory D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a' [1/1] Linking CXX shared library ..\..\..\..\build\intermediates\cmake\debug\obj\arm64-v8a\libaudio_mixer.so FAILED: ../../../../build/intermediates/cmake/debug/obj/arm64-v8a/libaudio_mixer.so cmd.exe /C "cd . && D:\Work\Android\Sdk\ndk\21.3.6528147\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=aarch64-none-linux-android21 --gcc-toolchain=D:/Work/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64 --sysroot=D:/Work/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64/sysroot -fPIC -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -std=c++14 -fexceptions -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libgcc_real.a -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -shared -Wl,-soname,libaudio_mixer.so -o ..\..\..\..\build\intermediates\cmake\debug\obj\arm64-v8a\libaudio_mixer.so CMakeFiles/audio_mixer.dir/src/main/jni/audio_mixer_jni.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer_global.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_record_source.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_source.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/djinni/support-lib/jni/djinni_main.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/djinni/support-lib/jni/djinni_support.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/jni/NativeAudioMixerApi.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/jni/NativeMixerConfig.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/jni/NativeMixerSource.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/cpp/audio_mixer_api.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/cpp/mixer_source.cpp.o -landroid -llog -lz -latomic -lm && cd ." CMakeFiles/audio_mixer.dir/src/main/jni/audio_mixer_jni.cpp.o: In function Java_com_github_piasy_audio_1mixer_AudioMixer_globalInitializeFFmpeg':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../src/main/jni/audio_mixer_jni.cpp:29: undefined reference to av_register_all' CMakeFiles/audio_mixer.dir/src/main/jni/audio_mixer_jni.cpp.o: In function webrtc::jni::jlongFromPointer(void*)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\sdk/android/src/jni/jni_helpers.h:37: undefined reference to webrtc::NativeToJavaPointer(void*)' CMakeFiles/audio_mixer.dir/src/main/jni/audio_mixer_jni.cpp.o: In function audio_mixer::SwrContextDeleter::operator()(SwrContext*)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:60: undefined reference to swr_free' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder':
D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:15: undefined reference to av_frame_alloc' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder':
D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:18: undefined reference to av_packet_alloc' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder':
D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:20: undefined reference to av_init_packet' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:24: undefined reference to avformat_open_input'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:31: undefined reference to avformat_find_stream_info'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:34: undefined reference to av_find_best_stream'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:37: undefined reference to avcodec_find_decoder'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:40: undefined reference to avcodec_alloc_context3'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:42: undefined reference to avcodec_parameters_to_context'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:46: undefined reference to avcodec_open2'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:51: undefined reference to av_audio_fifo_alloc'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function av_make_error_string(char*, unsigned long, int)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/ffmpeg/include\libavutil/error.h:111: undefined reference to av_strerror'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AudioFileDecoder::FillDecoder()': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:86: undefined reference to av_read_frame'
D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:90: undefined reference to av_packet_unref' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:95: undefined reference to avcodec_send_packet'
D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:97: undefined reference to av_packet_unref' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AudioFileDecoder::Consume(void**, int)':
D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:77: undefined reference to av_audio_fifo_size' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:78: undefined reference to av_audio_fifo_read'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AudioFileDecoder::FillFifo()': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:109: undefined reference to av_audio_fifo_size'
D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:110: undefined reference to avcodec_receive_frame' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:111: undefined reference to av_audio_fifo_write'
D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:113: undefined reference to av_frame_unref' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVFrameDeleter::operator()(AVFrame*)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:44: undefined reference to av_frame_free' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVPacketDeleter::operator()(AVPacket*)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:52: undefined reference to av_packet_free' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVFormatContextDeleter::operator()(AVFormatContext*)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:28: undefined reference to avformat_close_input' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVCodecContextDeleter::operator()(AVCodecContext*)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:36: undefined reference to avcodec_free_context' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVAudioFifoDeleter::operator()(AVAudioFifo*)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:68: undefined reference to av_audio_fifo_free' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function AudioFileSource':
D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:32: undefined reference to av_samples_alloc_array_and_samples' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function av_make_error_string(char*, unsigned long, int)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/ffmpeg/include\libavutil/error.h:111: undefined reference to av_strerror' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function ~AudioFileSource':
D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:45: undefined reference to av_freep' D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:47: undefined reference to av_freep'
CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function audio_mixer::AudioFileSource::GetAudioFrameWithInfo(int, webrtc::AudioFrame*)': D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:56: undefined reference to webrtc::AudioFrame::UpdateFrame(unsigned int, short const*, unsigned long, int, webrtc::AudioFrame::SpeechType, webrtc::AudioFrame::VADActivity, unsigned long)'
D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:62: undefined reference to webrtc::AudioFrame::mutable_data()' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function audio_mixer::AudioFileSource::Read(void**)':
D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:91: undefined reference to av_samples_get_buffer_size' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function AudioMixer':
D:/Work/Demo Project/AudioMixer/src/audio_mixer.cpp:20: undefined reference to webrtc::AudioMixerImpl::Create()' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function AudioMixer':
D:/Work/Demo Project/AudioMixer/src/audio_mixer.cpp:39: undefined reference to webrtc::AudioFrame::UpdateFrame(unsigned int, short const*, unsigned long, int, webrtc::AudioFrame::SpeechType, webrtc::AudioFrame::VADActivity, unsigned long)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function std::__ndk1::__unique_ifwebrtc::AudioFrame::unique_single std::ndk1::make_uniquewebrtc::AudioFrame()':
D:/Work/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/include/c++/v1/memory:3003: undefined reference to webrtc::AudioFrame::AudioFrame()' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function audio_mixer::AudioMixer::Mix(void*)': D:/Work/Demo Project/AudioMixer/src/audio_mixer.cpp:83: undefined reference to av_samples_get_buffer_size'
D:/Work/Demo Project/AudioMixer/src/audio_mixer.cpp:85: undefined reference to webrtc::AudioFrame::data() const' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_record_source.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<>(char const*, int, char const*)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
CMakeFiles/audio_mixer.dir/D/Work/Demo_Project/AudioMixer/src/audio_record_source.cpp.o: In function audio_mixer::AudioRecordSource::GetAudioFrameWithInfo(int, webrtc::AudioFrame*)': D:/Work/Demo Project/AudioMixer/src/audio_record_source.cpp:43: undefined reference to webrtc::AudioFrame::UpdateFrame(unsigned int, short const*, unsigned long, int, webrtc::AudioFrame::SpeechType, webrtc::AudioFrame::VADActivity, unsigned long)'
CMakeFiles/audio_mixer.dir/D/Work/Demo_Project/AudioMixer/src/audio_record_source.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<>(char const*, int, char const*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)'
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function AudioResampler':
D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:15: undefined reference to swr_alloc' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<>(char const*, int, char const*)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function AudioResampler':
D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:29: undefined reference to av_opt_set_int' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:30: undefined reference to av_opt_set_int'
D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:31: undefined reference to av_opt_set_sample_fmt' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:33: undefined reference to av_opt_set_int'
D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:34: undefined reference to av_opt_set_int' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:35: undefined reference to av_opt_set_sample_fmt'
D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:37: undefined reference to swr_init' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function av_make_error_string(char*, unsigned long, int)':
D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/ffmpeg/include\libavutil/error.h:111: undefined reference to av_strerror' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function audio_mixer::AudioResampler::Resample(void**, int, void**)':
D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:43: undefined reference to av_get_bytes_per_sample' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:45: undefined reference to av_rescale_rnd'
D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:48: undefined reference to swr_convert' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:57: undefined reference to av_samples_get_buffer_size'
CMakeFiles/audio_mixer.dir/D/Work/Demo_Project/AudioMixer/src/audio_source.cpp.o: In function audio_mixer::AudioSource::ApplyVolume(webrtc::AudioFrame*)': D:/Work/Demo Project/AudioMixer/src/audio_source.cpp:14: undefined reference to webrtc::AudioFrameOperations::ScaleWithSat(float, webrtc::AudioFrame*)'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

[KingZD]

Build command failed. Error while executing process D:\Work\Android\Sdk\cmake\3.10.2.4988404\bin\ninja.exe with arguments {-C D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a audio_mixer} ninja: Entering directory D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a' [1/1] Linking CXX shared library ..\..\..\..\build\intermediates\cmake\debug\obj\arm64-v8a\libaudio_mixer.so FAILED: ../../../../build/intermediates/cmake/debug/obj/arm64-v8a/libaudio_mixer.so cmd.exe /C "cd . && D:\Work\Android\Sdk\ndk\21.3.6528147\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=aarch64-none-linux-android21 --gcc-toolchain=D:/Work/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64 --sysroot=D:/Work/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64/sysroot -fPIC -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -std=c++14 -fexceptions -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libgcc_real.a -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -shared -Wl,-soname,libaudio_mixer.so -o ..\..\..\..\build\intermediates\cmake\debug\obj\arm64-v8a\libaudio_mixer.so CMakeFiles/audio_mixer.dir/src/main/jni/audio_mixer_jni.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer_global.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_record_source.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_source.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/djinni/support-lib/jni/djinni_main.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/djinni/support-lib/jni/djinni_support.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/jni/NativeAudioMixerApi.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/jni/NativeMixerConfig.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/jni/NativeMixerSource.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/cpp/audio_mixer_api.cpp.o CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/generated_src/cpp/mixer_source.cpp.o -landroid -llog -lz -latomic -lm && cd ." CMakeFiles/audio_mixer.dir/src/main/jni/audio_mixer_jni.cpp.o: In function Java_com_github_piasy_audio_1mixer_AudioMixer_globalInitializeFFmpeg': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../src/main/jni/audio_mixer_jni.cpp:29: undefined reference to av_register_all' CMakeFiles/audio_mixer.dir/src/main/jni/audio_mixer_jni.cpp.o: In function webrtc::jni::jlongFromPointer(void*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\sdk/android/src/jni/jni_helpers.h:37: undefined reference to webrtc::NativeToJavaPointer(void*)' CMakeFiles/audio_mixer.dir/src/main/jni/audio_mixer_jni.cpp.o: In function audio_mixer::SwrContextDeleter::operator()(SwrContext*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:60: undefined reference to swr_free' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:15: undefined reference to av_frame_alloc' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:18: undefined reference to av_packet_alloc' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:20: undefined reference to av_init_packet' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:24: undefined reference to avformat_open_input' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:31: undefined reference to avformat_find_stream_info' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:34: undefined reference to av_find_best_stream' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:37: undefined reference to avcodec_find_decoder' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:40: undefined reference to avcodec_alloc_context3' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:42: undefined reference to avcodec_parameters_to_context' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:46: undefined reference to avcodec_open2' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function AudioFileDecoder': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:51: undefined reference to av_audio_fifo_alloc' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function av_make_error_string(char*, unsigned long, int)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/ffmpeg/include\libavutil/error.h:111: undefined reference to av_strerror' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AudioFileDecoder::FillDecoder()': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:86: undefined reference to av_read_frame' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:90: undefined reference to av_packet_unref' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:95: undefined reference to avcodec_send_packet' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:97: undefined reference to av_packet_unref' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AudioFileDecoder::Consume(void**, int)': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:77: undefined reference to av_audio_fifo_size' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:78: undefined reference to av_audio_fifo_read' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AudioFileDecoder::FillFifo()': D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:109: undefined reference to av_audio_fifo_size' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:110: undefined reference to avcodec_receive_frame' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:111: undefined reference to av_audio_fifo_write' D:/Work/Demo Project/AudioMixer/src/audio_file_decoder.cpp:113: undefined reference to av_frame_unref' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVFrameDeleter::operator()(AVFrame*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:44: undefined reference to av_frame_free' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVPacketDeleter::operator()(AVPacket*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:52: undefined reference to av_packet_free' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVFormatContextDeleter::operator()(AVFormatContext*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:28: undefined reference to avformat_close_input' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVCodecContextDeleter::operator()(AVCodecContext*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:36: undefined reference to avcodec_free_context' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_decoder.cpp.o: In function audio_mixer::AVAudioFifoDeleter::operator()(AVAudioFifo*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../src/avx_helper.h:68: undefined reference to av_audio_fifo_free' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function AudioFileSource': D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:32: undefined reference to av_samples_alloc_array_and_samples' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function av_make_error_string(char*, unsigned long, int)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/ffmpeg/include\libavutil/error.h:111: undefined reference to av_strerror' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function ~AudioFileSource': D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:45: undefined reference to av_freep' D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:47: undefined reference to av_freep' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function audio_mixer::AudioFileSource::GetAudioFrameWithInfo(int, webrtc::AudioFrame*)': D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:56: undefined reference to webrtc::AudioFrame::UpdateFrame(unsigned int, short const*, unsigned long, int, webrtc::AudioFrame::SpeechType, webrtc::AudioFrame::VADActivity, unsigned long)' D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:62: undefined reference to webrtc::AudioFrame::mutable_data()' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_file_source.cpp.o: In function audio_mixer::AudioFileSource::Read(void**)': D:/Work/Demo Project/AudioMixer/src/audio_file_source.cpp:91: undefined reference to av_samples_get_buffer_size' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function AudioMixer': D:/Work/Demo Project/AudioMixer/src/audio_mixer.cpp:20: undefined reference to webrtc::AudioMixerImpl::Create()' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function AudioMixer': D:/Work/Demo Project/AudioMixer/src/audio_mixer.cpp:39: undefined reference to webrtc::AudioFrame::UpdateFrame(unsigned int, short const*, unsigned long, int, webrtc::AudioFrame::SpeechType, webrtc::AudioFrame::VADActivity, unsigned long)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function std::__ndk1::__unique_ifwebrtc::AudioFrame::unique_single std::ndk1::make_uniquewebrtc::AudioFrame()': D:/Work/Android/Sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/include/c++/v1/memory:3003: undefined reference to webrtc::AudioFrame::AudioFrame()' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D/Work/Demo_Project/AudioMixer/src/audio_mixer.cpp.o: In function audio_mixer::AudioMixer::Mix(void*)': D:/Work/Demo Project/AudioMixer/src/audio_mixer.cpp:83: undefined reference to av_samples_get_buffer_size' D:/Work/Demo Project/AudioMixer/src/audio_mixer.cpp:85: undefined reference to webrtc::AudioFrame::data() const' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_record_source.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<>(char const*, int, char const*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D/Work/Demo_Project/AudioMixer/src/audio_record_source.cpp.o: In function audio_mixer::AudioRecordSource::GetAudioFrameWithInfo(int, webrtc::AudioFrame*)': D:/Work/Demo Project/AudioMixer/src/audio_record_source.cpp:43: undefined reference to webrtc::AudioFrame::UpdateFrame(unsigned int, short const*, unsigned long, int, webrtc::AudioFrame::SpeechType, webrtc::AudioFrame::VADActivity, unsigned long)' CMakeFiles/audio_mixer.dir/D/Work/Demo_Project/AudioMixer/src/audio_record_source.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<>(char const*, int, char const*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer\.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function AudioResampler': D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:15: undefined reference to swr_alloc' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<>(char const*, int, char const*)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function AudioResampler': D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:29: undefined reference to av_opt_set_int' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:30: undefined reference to av_opt_set_int' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:31: undefined reference to av_opt_set_sample_fmt' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:33: undefined reference to av_opt_set_int' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:34: undefined reference to av_opt_set_int' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:35: undefined reference to av_opt_set_sample_fmt' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:37: undefined reference to swr_init' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function void rtc::webrtc_checks_impl::LogStreamer<>::Call<rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> >(char const*, int, char const*, rtc::webrtc_checks_impl::Val<(rtc::webrtc_checks_impl::CheckArgType)9, char const*> const&)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/webrtc/include\rtc_base/checks.h:192: undefined reference to rtc::webrtc_checks_impl::FatalLog(char const*, int, char const*, rtc::webrtc_checks_impl::CheckArgType const*, ...)' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function av_make_error_string(char*, unsigned long, int)': D:\Work\Demo Project\AudioMixer\android_project\AudioMixer.cxx\cmake\debug\arm64-v8a/../../../../../../libs/ffmpeg/include\libavutil/error.h:111: undefined reference to av_strerror' CMakeFiles/audio_mixer.dir/D_/Work/Demo_Project/AudioMixer/src/audio_resampler.cpp.o: In function audio_mixer::AudioResampler::Resample(void**, int, void**)': D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:43: undefined reference to av_get_bytes_per_sample' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:45: undefined reference to av_rescale_rnd' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:48: undefined reference to swr_convert' D:/Work/Demo Project/AudioMixer/src/audio_resampler.cpp:57: undefined reference to av_samples_get_buffer_size' CMakeFiles/audio_mixer.dir/D/Work/Demo_Project/AudioMixer/src/audio_source.cpp.o: In function audio_mixer::AudioSource::ApplyVolume(webrtc::AudioFrame*)': D:/Work/Demo Project/AudioMixer/src/audio_source.cpp:14: undefined reference to webrtc::AudioFrameOperations::ScaleWithSat(float, webrtc::AudioFrame*)' clang++: error: linker command failed with exit code 1 (use -v to see invocation) ninja: build stopped: subcommand failed.

你需要这个，拷贝到 AudioMixer/libs/ 目录下