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5b139d6f9b
This CL changes so that the AGC legacy C code is built as C++. The CL also -removes #defines from the header files. -adds namespaces -removes unused code. To simplify the review, the CL is partitioned into different patchsets where each comprising of one step in the modification of the code (e.g., patch set 1 performs the renaming of the .c files to .cc). Bug: webrtc:5298 Change-Id: I362b17bde91142b2f2166acba4f2f888efd50fa1 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/171064 Commit-Queue: Per Åhgren <peah@webrtc.org> Reviewed-by: Alessio Bazzica <alessiob@webrtc.org> Cr-Commit-Position: refs/heads/master@{#30847}
75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
/*
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* Copyright (c) 2011 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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#ifndef MODULES_AUDIO_PROCESSING_AGC_LEGACY_DIGITAL_AGC_H_
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#define MODULES_AUDIO_PROCESSING_AGC_LEGACY_DIGITAL_AGC_H_
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#include "common_audio/signal_processing/include/signal_processing_library.h"
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namespace webrtc {
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typedef struct {
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int32_t downState[8];
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int16_t HPstate;
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int16_t counter;
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int16_t logRatio; // log( P(active) / P(inactive) ) (Q10)
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int16_t meanLongTerm; // Q10
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int32_t varianceLongTerm; // Q8
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int16_t stdLongTerm; // Q10
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int16_t meanShortTerm; // Q10
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int32_t varianceShortTerm; // Q8
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int16_t stdShortTerm; // Q10
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} AgcVad; // total = 54 bytes
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typedef struct {
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int32_t capacitorSlow;
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int32_t capacitorFast;
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int32_t gain;
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int32_t gainTable[32];
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int16_t gatePrevious;
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int16_t agcMode;
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AgcVad vadNearend;
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AgcVad vadFarend;
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} DigitalAgc;
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int32_t WebRtcAgc_InitDigital(DigitalAgc* digitalAgcInst, int16_t agcMode);
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int32_t WebRtcAgc_ComputeDigitalGains(DigitalAgc* digitalAgcInst,
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const int16_t* const* inNear,
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size_t num_bands,
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uint32_t FS,
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int16_t lowLevelSignal,
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int32_t gains[11]);
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int32_t WebRtcAgc_ApplyDigitalGains(const int32_t gains[11],
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size_t num_bands,
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uint32_t FS,
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const int16_t* const* in_near,
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int16_t* const* out);
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int32_t WebRtcAgc_AddFarendToDigital(DigitalAgc* digitalAgcInst,
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const int16_t* inFar,
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size_t nrSamples);
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void WebRtcAgc_InitVad(AgcVad* vadInst);
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int16_t WebRtcAgc_ProcessVad(AgcVad* vadInst, // (i) VAD state
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const int16_t* in, // (i) Speech signal
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size_t nrSamples); // (i) number of samples
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int32_t WebRtcAgc_CalculateGainTable(int32_t* gainTable, // Q16
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int16_t compressionGaindB, // Q0 (in dB)
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int16_t targetLevelDbfs, // Q0 (in dB)
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uint8_t limiterEnable,
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int16_t analogTarget);
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_AGC_LEGACY_DIGITAL_AGC_H_
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