Initial meson build files

webrtc/modules/audio_coding/meson.build

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+audio_coding_sources = [
+  'codecs/isac/main/source/arith_routines.c',
+  'codecs/isac/main/source/arith_routines_hist.c',
+  'codecs/isac/main/source/arith_routines_logist.c',
+  'codecs/isac/main/source/encode_lpc_swb.c',
+  'codecs/isac/main/source/entropy_coding.c',
+  'codecs/isac/main/source/filter_functions.c',
+  'codecs/isac/main/source/filterbanks.c',
+  'codecs/isac/main/source/filterbank_tables.c',
+  'codecs/isac/main/source/intialize.c',
+  'codecs/isac/main/source/lpc_analysis.c',
+  'codecs/isac/main/source/lpc_gain_swb_tables.c',
+  'codecs/isac/main/source/lpc_shape_swb12_tables.c',
+  'codecs/isac/main/source/lpc_shape_swb16_tables.c',
+  'codecs/isac/main/source/lpc_tables.c',
+  'codecs/isac/main/source/pitch_estimator.c',
+  'codecs/isac/main/source/pitch_filter.c',
+  'codecs/isac/main/source/pitch_gain_tables.c',
+  'codecs/isac/main/source/pitch_lag_tables.c',
+  'codecs/isac/main/source/spectrum_ar_model_tables.c',
+]
+
+libaudio_coding = static_library('audio_coding',
+    audio_coding_sources,
+    dependencies: common_deps,
+    include_directories: webrtc_inc,
+    c_args: common_cflags,
+    cpp_args: common_cxxflags
+)
+
+audio_coding_dep = declare_dependency(
+    link_with: libaudio_coding
+)

webrtc/modules/audio_processing/meson.build

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+webrtc_audio_processing_sources = [
+  'aec/aec_core.c',
+  'aec/aec_rdft.c',
+  'aec/aec_resampler.c',
+  'aec/echo_cancellation.c',
+  'aecm/echo_control_mobile.c',
+  'aecm/aecm_core.c',
+  'aecm/aecm_core_c.c',
+  'agc/legacy/analog_agc.c',
+  'agc/legacy/digital_agc.c',
+  'agc/agc.cc',
+  'agc/agc_manager_direct.cc',
+  'agc/histogram.cc',
+  'agc/utility.cc',
+  'beamformer/array_util.cc',
+  'beamformer/covariance_matrix_generator.cc',
+  'beamformer/nonlinear_beamformer.cc',
+  'intelligibility/intelligibility_enhancer.cc',
+  'intelligibility/intelligibility_utils.cc',
+  'logging/aec_logging_file_handling.cc',
+  'transient/click_annotate.cc',
+  'transient/file_utils.cc',
+  'transient/moving_moments.cc',
+  'transient/transient_detector.cc',
+  'transient/transient_suppressor.cc',
+  'transient/wpd_node.cc',
+  'transient/wpd_tree.cc',
+  'utility/delay_estimator.c',
+  'utility/delay_estimator_wrapper.c',
+  'vad/gmm.cc',
+  'vad/pitch_based_vad.cc',
+  'vad/pitch_internal.cc',
+  'vad/pole_zero_filter.cc',
+  'vad/standalone_vad.cc',
+  'vad/vad_audio_proc.cc',
+  'vad/vad_circular_buffer.cc',
+  'vad/voice_activity_detector.cc',
+  'audio_buffer.cc',
+  'audio_processing_impl.cc',
+  'audio_processing_impl.h',
+  'echo_cancellation_impl.cc',
+  'echo_control_mobile_impl.cc',
+  'gain_control_impl.cc',
+  'high_pass_filter_impl.cc',
+  'level_estimator_impl.cc',
+  'noise_suppression_impl.cc',
+  'rms_level.cc',
+  'splitting_filter.cc',
+  'processing_component.cc',
+  'three_band_filter_bank.cc',
+  'typing_detection.cc',
+  'voice_detection_impl.cc',
+]
+
+webrtc_audio_processing_beamformer_headers = [
+  'beamformer/array_util.h',
+]
+
+webrtc_audio_processing_include_headers = [
+  'include/audio_processing.h',
+]
+
+if get_option('ns_mode') == 'float'
+  webrtc_audio_processing_sources += [
+    'ns/noise_suppression.c',
+    'ns/ns_core.c',
+  ]
+else
+  webrtc_audio_processing_sources += [
+    'ns/noise_suppression_x.c',
+    'ns/nsx_core.c',
+    'ns/nsx_core_c.c',
+  ]
+  if have_neon
+    webrtc_audio_processing_sources += [
+      'ns/nsx_core_neon.c',
+    ]
+  endif
+endif
+
+extra_libs = []
+if have_x86
+  extra_libs += [
+    static_library('webrtc_audio_processing_privatearch',
+      ['aec/aec_core_sse2.c', 'aec/aec_rdft_sse2.c'],
+      dependencies: common_deps,
+      include_directories: webrtc_inc,
+      c_args: common_cflags + ['-msse2'],
+      cpp_args: common_cxxflags + ['-msse2']
+    )
+  ]
+endif
+
+if have_neon
+  webrtc_audio_processing_sources += [
+    'aec/aec_core_neon.c',
+    'aec/aec_rdft_neon.c',
+    'aecm/aecm_core_neon.c',
+  ]
+endif
+
+install_headers(webrtc_audio_processing_beamformer_headers,
+    subdir: 'webrtc_audio_processing/webrtc/modules/audio_processing/beamformer'
+)
+
+install_headers(webrtc_audio_processing_include_headers,
+    subdir: 'webrtc_audio_processing/webrtc/modules/audio_processing/include'
+)
+
+libwebrtc_audio_processing = library('webrtc_audio_processing',
+    webrtc_audio_processing_sources,
+    dependencies: [base_dep, audio_coding_dep, system_wrappers_dep, common_audio_dep, audio_coding_dep, webrtc_dep] + common_deps,
+    link_with: extra_libs,
+    include_directories: webrtc_inc,
+    c_args: common_cflags,
+    cpp_args: common_cxxflags,
+    soversion: soversion,
+    install: true
+)
+
+webrtc_audio_processing_dep = declare_dependency(
+    link_with: libwebrtc_audio_processing,
+    include_directories: webrtc_inc,
+    version: meson.project_version()
+)

webrtc/modules/interface/meson.build

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+interface_headers = [
+  'module_common_types.h',
+]
+
+install_headers(interface_headers,
+    subdir: 'webrtc_audio_processing/webrtc/modules/interface'
+)

webrtc/modules/meson.build

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+subdir('audio_coding')
+subdir('audio_processing')
+subdir('interface')