79b9eba3ab
Implemented the 3 bands splitting filter bank by: 1. Upsample by 4/3. 2. Split twice into 2 bands. 3. Discard upper most band, because it is empty anyway. A unittest was also implemented: 1. Generate a signal from presence or absence of sine waves of different frequencies. 2. Split into 3 bands and check their presence or absence. 3. Recombine the bands. 4. Calculate delay (as it is an IIR it depends on frequency). 5. Check that the cross correlation of input and output is high enough at that delay. BUG=webrtc:3146 R=andrew@webrtc.org, bjornv@webrtc.org, kwiberg@webrtc.org Review URL: https://webrtc-codereview.appspot.com/31029004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@7754 4adac7df-926f-26a2-2b94-8c16560cd09d
246 lines
7.8 KiB
Python
246 lines
7.8 KiB
Python
# Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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#
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# Use of this source code is governed by a BSD-style license
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# that can be found in the LICENSE file in the root of the source
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# tree. An additional intellectual property rights grant can be found
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# in the file PATENTS. All contributing project authors may
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# be found in the AUTHORS file in the root of the source tree.
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{
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'variables': {
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'audio_processing_dependencies': [
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'<(webrtc_root)/base/base.gyp:rtc_base_approved',
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'<(webrtc_root)/common_audio/common_audio.gyp:common_audio',
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'<(webrtc_root)/system_wrappers/source/system_wrappers.gyp:system_wrappers',
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],
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'shared_generated_dir': '<(SHARED_INTERMEDIATE_DIR)/audio_processing/asm_offsets',
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},
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'targets': [
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{
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'target_name': 'audio_processing',
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'type': 'static_library',
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'variables': {
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# Outputs some low-level debug files.
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'aec_debug_dump%': 0,
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'agc_debug_dump%': 0,
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# Disables the usual mode where we trust the reported system delay
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# values the AEC receives. The corresponding define is set appropriately
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# in the code, but it can be force-enabled here for testing.
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'aec_untrusted_delay_for_testing%': 0,
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},
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'dependencies': [
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'<@(audio_processing_dependencies)',
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],
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'sources': [
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'aec/include/echo_cancellation.h',
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'aec/echo_cancellation.c',
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'aec/echo_cancellation_internal.h',
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'aec/aec_core.h',
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'aec/aec_core.c',
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'aec/aec_core_internal.h',
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'aec/aec_rdft.h',
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'aec/aec_rdft.c',
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'aec/aec_resampler.h',
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'aec/aec_resampler.c',
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'aecm/include/echo_control_mobile.h',
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'aecm/echo_control_mobile.c',
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'aecm/aecm_core.c',
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'aecm/aecm_core.h',
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'agc/include/gain_control.h',
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'agc/analog_agc.c',
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'agc/analog_agc.h',
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'agc/digital_agc.c',
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'agc/digital_agc.h',
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'audio_buffer.cc',
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'audio_buffer.h',
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'audio_processing_impl.cc',
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'audio_processing_impl.h',
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'channel_buffer.cc',
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'channel_buffer.h',
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'common.h',
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'echo_cancellation_impl.cc',
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'echo_cancellation_impl.h',
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'echo_control_mobile_impl.cc',
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'echo_control_mobile_impl.h',
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'gain_control_impl.cc',
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'gain_control_impl.h',
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'high_pass_filter_impl.cc',
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'high_pass_filter_impl.h',
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'include/audio_processing.h',
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'level_estimator_impl.cc',
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'level_estimator_impl.h',
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'noise_suppression_impl.cc',
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'noise_suppression_impl.h',
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'processing_component.cc',
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'processing_component.h',
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'splitting_filter.cc',
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'splitting_filter.h',
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'rms_level.cc',
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'rms_level.h',
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'typing_detection.cc',
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'typing_detection.h',
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'utility/delay_estimator.c',
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'utility/delay_estimator.h',
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'utility/delay_estimator_internal.h',
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'utility/delay_estimator_wrapper.c',
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'utility/delay_estimator_wrapper.h',
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'utility/fft4g.c',
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'utility/fft4g.h',
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'utility/ring_buffer.c',
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'utility/ring_buffer.h',
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'voice_detection_impl.cc',
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'voice_detection_impl.h',
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],
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'conditions': [
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['aec_debug_dump==1', {
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'defines': ['WEBRTC_AEC_DEBUG_DUMP',],
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}],
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['aec_untrusted_delay_for_testing==1', {
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'defines': ['WEBRTC_UNTRUSTED_DELAY',],
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}],
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['agc_debug_dump==1', {
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'defines': ['WEBRTC_AGC_DEBUG_DUMP',],
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}],
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['enable_protobuf==1', {
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'dependencies': ['audioproc_debug_proto'],
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'defines': ['WEBRTC_AUDIOPROC_DEBUG_DUMP'],
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}],
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['prefer_fixed_point==1', {
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'defines': ['WEBRTC_NS_FIXED'],
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'sources': [
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'ns/include/noise_suppression_x.h',
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'ns/noise_suppression_x.c',
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'ns/nsx_core.c',
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'ns/nsx_core.h',
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'ns/nsx_defines.h',
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],
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'conditions': [
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['target_arch=="mipsel" and mips_arch_variant!="r6" and android_webview_build==0', {
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'sources': [
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'ns/nsx_core_mips.c',
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],
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}, {
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'sources': [
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'ns/nsx_core_c.c',
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],
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}],
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],
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}, {
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'defines': ['WEBRTC_NS_FLOAT'],
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'sources': [
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'ns/defines.h',
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'ns/include/noise_suppression.h',
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'ns/noise_suppression.c',
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'ns/ns_core.c',
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'ns/ns_core.h',
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'ns/windows_private.h',
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],
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}],
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['target_arch=="ia32" or target_arch=="x64"', {
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'dependencies': ['audio_processing_sse2',],
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}],
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['(target_arch=="arm" and arm_version==7) or target_arch=="armv7" or target_arch=="arm64"', {
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'dependencies': ['audio_processing_neon',],
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}],
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['target_arch=="mipsel" and mips_arch_variant!="r6" and android_webview_build==0', {
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'sources': [
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'aecm/aecm_core_mips.c',
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],
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'conditions': [
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['mips_fpu==1', {
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'sources': [
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'aec/aec_core_mips.c',
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'aec/aec_rdft_mips.c',
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],
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}],
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],
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}, {
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'sources': [
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'aecm/aecm_core_c.c',
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],
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}],
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],
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# TODO(jschuh): Bug 1348: fix size_t to int truncations.
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'msvs_disabled_warnings': [ 4267, ],
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},
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],
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'conditions': [
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['enable_protobuf==1', {
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'targets': [
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{
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'target_name': 'audioproc_debug_proto',
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'type': 'static_library',
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'sources': ['debug.proto',],
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'variables': {
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'proto_in_dir': '.',
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# Workaround to protect against gyp's pathname relativization when
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# this file is included by modules.gyp.
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'proto_out_protected': 'webrtc/audio_processing',
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'proto_out_dir': '<(proto_out_protected)',
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},
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'includes': ['../../build/protoc.gypi',],
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},
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],
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}],
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['target_arch=="ia32" or target_arch=="x64"', {
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'targets': [
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{
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'target_name': 'audio_processing_sse2',
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'type': 'static_library',
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'sources': [
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'aec/aec_core_sse2.c',
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'aec/aec_rdft_sse2.c',
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],
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'cflags': ['-msse2',],
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'xcode_settings': {
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'OTHER_CFLAGS': ['-msse2',],
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},
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},
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],
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}],
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['(target_arch=="arm" and arm_version==7) or target_arch=="armv7" or target_arch=="arm64"', {
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'targets': [{
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'target_name': 'audio_processing_neon',
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'type': 'static_library',
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'includes': ['../../build/arm_neon.gypi',],
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'dependencies': [
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'<(webrtc_root)/common_audio/common_audio.gyp:common_audio',
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],
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'sources': [
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'aec/aec_core_neon.c',
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'aec/aec_rdft_neon.c',
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'aecm/aecm_core_neon.c',
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'ns/nsx_core_neon.c',
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],
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'conditions': [
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['(OS=="android" or OS=="ios") and target_arch!="arm64"', {
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'dependencies': [
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'<(gen_core_neon_offsets_gyp):*',
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],
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'sources': [
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'aecm/aecm_core_neon.S',
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'ns/nsx_core_neon.S',
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],
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'include_dirs': [
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'<(shared_generated_dir)',
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],
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'sources!': [
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'aecm/aecm_core_neon.c',
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'ns/nsx_core_neon.c',
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],
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'includes!': ['../../build/arm_neon.gypi',],
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}],
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# Disable LTO in audio_processing_neon target due to compiler bug
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['use_lto==1', {
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'cflags!': [
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'-flto',
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'-ffat-lto-objects',
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],
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}],
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],
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}],
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}],
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],
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}
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