mirror of
https://github.com/mollyim/webrtc.git
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3b68aa346a
Some locations in the WebRTC codebase RTC_LOG the value of the __FUNCTION__ macro which probably is useful in debug mode. Moving these instances to RTC_DLOG saves ~10 KiB on arm64. Bug: webrtc:11986 Change-Id: I5d81cc459d2850657a712b9aed80c187edf49a3a Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/203981 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Andreassson <henrika@webrtc.org> Reviewed-by: Sami Kalliomäki <sakal@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33086}
979 lines
28 KiB
C++
979 lines
28 KiB
C++
/*
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* 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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#include "modules/audio_device/linux/audio_mixer_manager_alsa_linux.h"
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#include "modules/audio_device/linux/audio_device_alsa_linux.h"
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#include "rtc_base/logging.h"
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// Accesses ALSA functions through our late-binding symbol table instead of
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// directly. This way we don't have to link to libasound, which means our binary
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// will work on systems that don't have it.
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#define LATE(sym) \
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LATESYM_GET(webrtc::adm_linux_alsa::AlsaSymbolTable, GetAlsaSymbolTable(), \
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sym)
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namespace webrtc {
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AudioMixerManagerLinuxALSA::AudioMixerManagerLinuxALSA()
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: _outputMixerHandle(NULL),
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_inputMixerHandle(NULL),
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_outputMixerElement(NULL),
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_inputMixerElement(NULL) {
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RTC_DLOG(LS_INFO) << __FUNCTION__ << " created";
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memset(_outputMixerStr, 0, kAdmMaxDeviceNameSize);
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memset(_inputMixerStr, 0, kAdmMaxDeviceNameSize);
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}
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AudioMixerManagerLinuxALSA::~AudioMixerManagerLinuxALSA() {
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RTC_DLOG(LS_INFO) << __FUNCTION__ << " destroyed";
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Close();
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}
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// ============================================================================
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// PUBLIC METHODS
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// ============================================================================
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int32_t AudioMixerManagerLinuxALSA::Close() {
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RTC_DLOG(LS_VERBOSE) << __FUNCTION__;
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MutexLock lock(&mutex_);
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CloseSpeakerLocked();
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CloseMicrophoneLocked();
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return 0;
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}
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int32_t AudioMixerManagerLinuxALSA::CloseSpeaker() {
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MutexLock lock(&mutex_);
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return CloseSpeakerLocked();
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}
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int32_t AudioMixerManagerLinuxALSA::CloseSpeakerLocked() {
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RTC_DLOG(LS_VERBOSE) << __FUNCTION__;
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int errVal = 0;
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if (_outputMixerHandle != NULL) {
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RTC_LOG(LS_VERBOSE) << "Closing playout mixer";
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LATE(snd_mixer_free)(_outputMixerHandle);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error freeing playout mixer: "
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<< LATE(snd_strerror)(errVal);
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}
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errVal = LATE(snd_mixer_detach)(_outputMixerHandle, _outputMixerStr);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error detaching playout mixer: "
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<< LATE(snd_strerror)(errVal);
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}
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errVal = LATE(snd_mixer_close)(_outputMixerHandle);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error snd_mixer_close(handleMixer) errVal="
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<< errVal;
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}
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_outputMixerHandle = NULL;
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_outputMixerElement = NULL;
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}
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memset(_outputMixerStr, 0, kAdmMaxDeviceNameSize);
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return 0;
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}
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int32_t AudioMixerManagerLinuxALSA::CloseMicrophone() {
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MutexLock lock(&mutex_);
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return CloseMicrophoneLocked();
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}
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int32_t AudioMixerManagerLinuxALSA::CloseMicrophoneLocked() {
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RTC_DLOG(LS_VERBOSE) << __FUNCTION__;
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int errVal = 0;
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if (_inputMixerHandle != NULL) {
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RTC_LOG(LS_VERBOSE) << "Closing record mixer";
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LATE(snd_mixer_free)(_inputMixerHandle);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error freeing record mixer: "
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<< LATE(snd_strerror)(errVal);
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}
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RTC_LOG(LS_VERBOSE) << "Closing record mixer 2";
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errVal = LATE(snd_mixer_detach)(_inputMixerHandle, _inputMixerStr);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error detaching record mixer: "
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<< LATE(snd_strerror)(errVal);
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}
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RTC_LOG(LS_VERBOSE) << "Closing record mixer 3";
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errVal = LATE(snd_mixer_close)(_inputMixerHandle);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error snd_mixer_close(handleMixer) errVal="
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<< errVal;
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}
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RTC_LOG(LS_VERBOSE) << "Closing record mixer 4";
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_inputMixerHandle = NULL;
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_inputMixerElement = NULL;
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}
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memset(_inputMixerStr, 0, kAdmMaxDeviceNameSize);
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return 0;
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}
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int32_t AudioMixerManagerLinuxALSA::OpenSpeaker(char* deviceName) {
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RTC_LOG(LS_VERBOSE) << "AudioMixerManagerLinuxALSA::OpenSpeaker(name="
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<< deviceName << ")";
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MutexLock lock(&mutex_);
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int errVal = 0;
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// Close any existing output mixer handle
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//
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if (_outputMixerHandle != NULL) {
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RTC_LOG(LS_VERBOSE) << "Closing playout mixer";
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LATE(snd_mixer_free)(_outputMixerHandle);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error freeing playout mixer: "
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<< LATE(snd_strerror)(errVal);
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}
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errVal = LATE(snd_mixer_detach)(_outputMixerHandle, _outputMixerStr);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error detaching playout mixer: "
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<< LATE(snd_strerror)(errVal);
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}
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errVal = LATE(snd_mixer_close)(_outputMixerHandle);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error snd_mixer_close(handleMixer) errVal="
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<< errVal;
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}
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}
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_outputMixerHandle = NULL;
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_outputMixerElement = NULL;
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errVal = LATE(snd_mixer_open)(&_outputMixerHandle, 0);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "snd_mixer_open(&_outputMixerHandle, 0) - error";
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return -1;
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}
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char controlName[kAdmMaxDeviceNameSize] = {0};
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GetControlName(controlName, deviceName);
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RTC_LOG(LS_VERBOSE) << "snd_mixer_attach(_outputMixerHandle, " << controlName
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<< ")";
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errVal = LATE(snd_mixer_attach)(_outputMixerHandle, controlName);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "snd_mixer_attach(_outputMixerHandle, " << controlName
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<< ") error: " << LATE(snd_strerror)(errVal);
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_outputMixerHandle = NULL;
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return -1;
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}
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strcpy(_outputMixerStr, controlName);
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errVal = LATE(snd_mixer_selem_register)(_outputMixerHandle, NULL, NULL);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR)
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<< "snd_mixer_selem_register(_outputMixerHandle, NULL, NULL), "
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"error: "
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<< LATE(snd_strerror)(errVal);
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_outputMixerHandle = NULL;
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return -1;
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}
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// Load and find the proper mixer element
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if (LoadSpeakerMixerElement() < 0) {
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return -1;
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}
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if (_outputMixerHandle != NULL) {
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RTC_LOG(LS_VERBOSE) << "the output mixer device is now open ("
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<< _outputMixerHandle << ")";
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}
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return 0;
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}
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int32_t AudioMixerManagerLinuxALSA::OpenMicrophone(char* deviceName) {
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RTC_LOG(LS_VERBOSE) << "AudioMixerManagerLinuxALSA::OpenMicrophone(name="
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<< deviceName << ")";
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MutexLock lock(&mutex_);
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int errVal = 0;
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// Close any existing input mixer handle
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//
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if (_inputMixerHandle != NULL) {
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RTC_LOG(LS_VERBOSE) << "Closing record mixer";
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LATE(snd_mixer_free)(_inputMixerHandle);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error freeing record mixer: "
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<< LATE(snd_strerror)(errVal);
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}
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RTC_LOG(LS_VERBOSE) << "Closing record mixer";
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errVal = LATE(snd_mixer_detach)(_inputMixerHandle, _inputMixerStr);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error detaching record mixer: "
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<< LATE(snd_strerror)(errVal);
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}
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RTC_LOG(LS_VERBOSE) << "Closing record mixer";
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errVal = LATE(snd_mixer_close)(_inputMixerHandle);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error snd_mixer_close(handleMixer) errVal="
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<< errVal;
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}
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RTC_LOG(LS_VERBOSE) << "Closing record mixer";
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}
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_inputMixerHandle = NULL;
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_inputMixerElement = NULL;
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errVal = LATE(snd_mixer_open)(&_inputMixerHandle, 0);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "snd_mixer_open(&_inputMixerHandle, 0) - error";
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return -1;
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}
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char controlName[kAdmMaxDeviceNameSize] = {0};
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GetControlName(controlName, deviceName);
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RTC_LOG(LS_VERBOSE) << "snd_mixer_attach(_inputMixerHandle, " << controlName
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<< ")";
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errVal = LATE(snd_mixer_attach)(_inputMixerHandle, controlName);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "snd_mixer_attach(_inputMixerHandle, " << controlName
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<< ") error: " << LATE(snd_strerror)(errVal);
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_inputMixerHandle = NULL;
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return -1;
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}
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strcpy(_inputMixerStr, controlName);
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errVal = LATE(snd_mixer_selem_register)(_inputMixerHandle, NULL, NULL);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR)
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<< "snd_mixer_selem_register(_inputMixerHandle, NULL, NULL), "
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"error: "
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<< LATE(snd_strerror)(errVal);
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_inputMixerHandle = NULL;
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return -1;
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}
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// Load and find the proper mixer element
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if (LoadMicMixerElement() < 0) {
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return -1;
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}
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if (_inputMixerHandle != NULL) {
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RTC_LOG(LS_VERBOSE) << "the input mixer device is now open ("
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<< _inputMixerHandle << ")";
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}
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return 0;
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}
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bool AudioMixerManagerLinuxALSA::SpeakerIsInitialized() const {
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RTC_DLOG(LS_INFO) << __FUNCTION__;
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return (_outputMixerHandle != NULL);
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}
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bool AudioMixerManagerLinuxALSA::MicrophoneIsInitialized() const {
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RTC_DLOG(LS_INFO) << __FUNCTION__;
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return (_inputMixerHandle != NULL);
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}
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int32_t AudioMixerManagerLinuxALSA::SetSpeakerVolume(uint32_t volume) {
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RTC_LOG(LS_VERBOSE) << "AudioMixerManagerLinuxALSA::SetSpeakerVolume(volume="
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<< volume << ")";
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MutexLock lock(&mutex_);
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if (_outputMixerElement == NULL) {
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RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
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return -1;
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}
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int errVal = LATE(snd_mixer_selem_set_playback_volume_all)(
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_outputMixerElement, volume);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error changing master volume: "
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<< LATE(snd_strerror)(errVal);
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return -1;
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}
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return (0);
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}
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int32_t AudioMixerManagerLinuxALSA::SpeakerVolume(uint32_t& volume) const {
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if (_outputMixerElement == NULL) {
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RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
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return -1;
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}
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long int vol(0);
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int errVal = LATE(snd_mixer_selem_get_playback_volume)(
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_outputMixerElement, (snd_mixer_selem_channel_id_t)0, &vol);
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if (errVal < 0) {
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RTC_LOG(LS_ERROR) << "Error getting outputvolume: "
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<< LATE(snd_strerror)(errVal);
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return -1;
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}
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RTC_LOG(LS_VERBOSE) << "AudioMixerManagerLinuxALSA::SpeakerVolume() => vol="
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<< vol;
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volume = static_cast<uint32_t>(vol);
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return 0;
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}
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int32_t AudioMixerManagerLinuxALSA::MaxSpeakerVolume(
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uint32_t& maxVolume) const {
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if (_outputMixerElement == NULL) {
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RTC_LOG(LS_WARNING) << "no avilable output mixer element exists";
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return -1;
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}
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long int minVol(0);
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long int maxVol(0);
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int errVal = LATE(snd_mixer_selem_get_playback_volume_range)(
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_outputMixerElement, &minVol, &maxVol);
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RTC_LOG(LS_VERBOSE) << "Playout hardware volume range, min: " << minVol
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<< ", max: " << maxVol;
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if (maxVol <= minVol) {
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RTC_LOG(LS_ERROR) << "Error getting get_playback_volume_range: "
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<< LATE(snd_strerror)(errVal);
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}
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maxVolume = static_cast<uint32_t>(maxVol);
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return 0;
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}
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int32_t AudioMixerManagerLinuxALSA::MinSpeakerVolume(
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uint32_t& minVolume) const {
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if (_outputMixerElement == NULL) {
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RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
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return -1;
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}
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long int minVol(0);
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long int maxVol(0);
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int errVal = LATE(snd_mixer_selem_get_playback_volume_range)(
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_outputMixerElement, &minVol, &maxVol);
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RTC_LOG(LS_VERBOSE) << "Playout hardware volume range, min: " << minVol
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<< ", max: " << maxVol;
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if (maxVol <= minVol) {
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RTC_LOG(LS_ERROR) << "Error getting get_playback_volume_range: "
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<< LATE(snd_strerror)(errVal);
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}
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minVolume = static_cast<uint32_t>(minVol);
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return 0;
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}
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// TL: Have done testnig with these but they don't seem reliable and
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// they were therefore not added
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/*
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// ----------------------------------------------------------------------------
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// SetMaxSpeakerVolume
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// ----------------------------------------------------------------------------
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int32_t AudioMixerManagerLinuxALSA::SetMaxSpeakerVolume(
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uint32_t maxVolume)
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{
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if (_outputMixerElement == NULL)
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{
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RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
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return -1;
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}
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long int minVol(0);
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long int maxVol(0);
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int errVal = snd_mixer_selem_get_playback_volume_range(
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_outputMixerElement, &minVol, &maxVol);
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if ((maxVol <= minVol) || (errVal != 0))
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{
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RTC_LOG(LS_WARNING) << "Error getting playback volume range: "
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<< snd_strerror(errVal);
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}
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maxVol = maxVolume;
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errVal = snd_mixer_selem_set_playback_volume_range(
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_outputMixerElement, minVol, maxVol);
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RTC_LOG(LS_VERBOSE) << "Playout hardware volume range, min: " << minVol
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<< ", max: " << maxVol;
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if (errVal != 0)
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{
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RTC_LOG(LS_ERROR) << "Error setting playback volume range: "
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<< snd_strerror(errVal);
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return -1;
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}
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return 0;
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}
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// ----------------------------------------------------------------------------
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// SetMinSpeakerVolume
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// ----------------------------------------------------------------------------
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int32_t AudioMixerManagerLinuxALSA::SetMinSpeakerVolume(
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uint32_t minVolume)
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{
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if (_outputMixerElement == NULL)
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{
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RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
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return -1;
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}
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long int minVol(0);
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long int maxVol(0);
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int errVal = snd_mixer_selem_get_playback_volume_range(
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_outputMixerElement, &minVol, &maxVol);
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if ((maxVol <= minVol) || (errVal != 0))
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{
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RTC_LOG(LS_WARNING) << "Error getting playback volume range: "
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<< snd_strerror(errVal);
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}
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minVol = minVolume;
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errVal = snd_mixer_selem_set_playback_volume_range(
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_outputMixerElement, minVol, maxVol);
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RTC_LOG(LS_VERBOSE) << "Playout hardware volume range, min: " << minVol
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<< ", max: " << maxVol;
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if (errVal != 0)
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{
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RTC_LOG(LS_ERROR) << "Error setting playback volume range: "
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<< snd_strerror(errVal);
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return -1;
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}
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return 0;
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}
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*/
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int32_t AudioMixerManagerLinuxALSA::SpeakerVolumeIsAvailable(bool& available) {
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if (_outputMixerElement == NULL) {
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RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
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return -1;
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}
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available = LATE(snd_mixer_selem_has_playback_volume)(_outputMixerElement);
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return 0;
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}
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int32_t AudioMixerManagerLinuxALSA::SpeakerMuteIsAvailable(bool& available) {
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if (_outputMixerElement == NULL) {
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RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
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return -1;
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}
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|
|
available = LATE(snd_mixer_selem_has_playback_switch)(_outputMixerElement);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::SetSpeakerMute(bool enable) {
|
|
RTC_LOG(LS_VERBOSE) << "AudioMixerManagerLinuxALSA::SetSpeakerMute(enable="
|
|
<< enable << ")";
|
|
|
|
MutexLock lock(&mutex_);
|
|
|
|
if (_outputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
// Ensure that the selected speaker destination has a valid mute control.
|
|
bool available(false);
|
|
SpeakerMuteIsAvailable(available);
|
|
if (!available) {
|
|
RTC_LOG(LS_WARNING) << "it is not possible to mute the speaker";
|
|
return -1;
|
|
}
|
|
|
|
// Note value = 0 (off) means muted
|
|
int errVal = LATE(snd_mixer_selem_set_playback_switch_all)(
|
|
_outputMixerElement, !enable);
|
|
if (errVal < 0) {
|
|
RTC_LOG(LS_ERROR) << "Error setting playback switch: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
return -1;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::SpeakerMute(bool& enabled) const {
|
|
if (_outputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable output mixer exists";
|
|
return -1;
|
|
}
|
|
|
|
// Ensure that the selected speaker destination has a valid mute control.
|
|
bool available =
|
|
LATE(snd_mixer_selem_has_playback_switch)(_outputMixerElement);
|
|
if (!available) {
|
|
RTC_LOG(LS_WARNING) << "it is not possible to mute the speaker";
|
|
return -1;
|
|
}
|
|
|
|
int value(false);
|
|
|
|
// Retrieve one boolean control value for a specified mute-control
|
|
//
|
|
int errVal = LATE(snd_mixer_selem_get_playback_switch)(
|
|
_outputMixerElement, (snd_mixer_selem_channel_id_t)0, &value);
|
|
if (errVal < 0) {
|
|
RTC_LOG(LS_ERROR) << "Error getting playback switch: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
return -1;
|
|
}
|
|
|
|
// Note value = 0 (off) means muted
|
|
enabled = (bool)!value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::MicrophoneMuteIsAvailable(bool& available) {
|
|
if (_inputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable input mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
available = LATE(snd_mixer_selem_has_capture_switch)(_inputMixerElement);
|
|
return 0;
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::SetMicrophoneMute(bool enable) {
|
|
RTC_LOG(LS_VERBOSE) << "AudioMixerManagerLinuxALSA::SetMicrophoneMute(enable="
|
|
<< enable << ")";
|
|
|
|
MutexLock lock(&mutex_);
|
|
|
|
if (_inputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable input mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
// Ensure that the selected microphone destination has a valid mute control.
|
|
bool available(false);
|
|
MicrophoneMuteIsAvailable(available);
|
|
if (!available) {
|
|
RTC_LOG(LS_WARNING) << "it is not possible to mute the microphone";
|
|
return -1;
|
|
}
|
|
|
|
// Note value = 0 (off) means muted
|
|
int errVal =
|
|
LATE(snd_mixer_selem_set_capture_switch_all)(_inputMixerElement, !enable);
|
|
if (errVal < 0) {
|
|
RTC_LOG(LS_ERROR) << "Error setting capture switch: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
return -1;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::MicrophoneMute(bool& enabled) const {
|
|
if (_inputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable input mixer exists";
|
|
return -1;
|
|
}
|
|
|
|
// Ensure that the selected microphone destination has a valid mute control.
|
|
bool available = LATE(snd_mixer_selem_has_capture_switch)(_inputMixerElement);
|
|
if (!available) {
|
|
RTC_LOG(LS_WARNING) << "it is not possible to mute the microphone";
|
|
return -1;
|
|
}
|
|
|
|
int value(false);
|
|
|
|
// Retrieve one boolean control value for a specified mute-control
|
|
//
|
|
int errVal = LATE(snd_mixer_selem_get_capture_switch)(
|
|
_inputMixerElement, (snd_mixer_selem_channel_id_t)0, &value);
|
|
if (errVal < 0) {
|
|
RTC_LOG(LS_ERROR) << "Error getting capture switch: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
return -1;
|
|
}
|
|
|
|
// Note value = 0 (off) means muted
|
|
enabled = (bool)!value;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::MicrophoneVolumeIsAvailable(
|
|
bool& available) {
|
|
if (_inputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable input mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
available = LATE(snd_mixer_selem_has_capture_volume)(_inputMixerElement);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::SetMicrophoneVolume(uint32_t volume) {
|
|
RTC_LOG(LS_VERBOSE)
|
|
<< "AudioMixerManagerLinuxALSA::SetMicrophoneVolume(volume=" << volume
|
|
<< ")";
|
|
|
|
MutexLock lock(&mutex_);
|
|
|
|
if (_inputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable input mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
int errVal =
|
|
LATE(snd_mixer_selem_set_capture_volume_all)(_inputMixerElement, volume);
|
|
if (errVal < 0) {
|
|
RTC_LOG(LS_ERROR) << "Error changing microphone volume: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
return -1;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
// TL: Have done testnig with these but they don't seem reliable and
|
|
// they were therefore not added
|
|
/*
|
|
// ----------------------------------------------------------------------------
|
|
// SetMaxMicrophoneVolume
|
|
// ----------------------------------------------------------------------------
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::SetMaxMicrophoneVolume(
|
|
uint32_t maxVolume)
|
|
{
|
|
|
|
if (_inputMixerElement == NULL)
|
|
{
|
|
RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
long int minVol(0);
|
|
long int maxVol(0);
|
|
|
|
int errVal = snd_mixer_selem_get_capture_volume_range(_inputMixerElement,
|
|
&minVol, &maxVol);
|
|
if ((maxVol <= minVol) || (errVal != 0))
|
|
{
|
|
RTC_LOG(LS_WARNING) << "Error getting capture volume range: "
|
|
<< snd_strerror(errVal);
|
|
}
|
|
|
|
maxVol = (long int)maxVolume;
|
|
printf("min %d max %d", minVol, maxVol);
|
|
errVal = snd_mixer_selem_set_capture_volume_range(_inputMixerElement, minVol,
|
|
maxVol); RTC_LOG(LS_VERBOSE) << "Capture hardware volume range, min: " <<
|
|
minVol
|
|
<< ", max: " << maxVol;
|
|
if (errVal != 0)
|
|
{
|
|
RTC_LOG(LS_ERROR) << "Error setting capture volume range: "
|
|
<< snd_strerror(errVal);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// SetMinMicrophoneVolume
|
|
// ----------------------------------------------------------------------------
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::SetMinMicrophoneVolume(
|
|
uint32_t minVolume)
|
|
{
|
|
|
|
if (_inputMixerElement == NULL)
|
|
{
|
|
RTC_LOG(LS_WARNING) << "no avaliable output mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
long int minVol(0);
|
|
long int maxVol(0);
|
|
|
|
int errVal = snd_mixer_selem_get_capture_volume_range(
|
|
_inputMixerElement, &minVol, &maxVol);
|
|
if (maxVol <= minVol)
|
|
{
|
|
//maxVol = 255;
|
|
RTC_LOG(LS_WARNING) << "Error getting capture volume range: "
|
|
<< snd_strerror(errVal);
|
|
}
|
|
|
|
printf("min %d max %d", minVol, maxVol);
|
|
minVol = (long int)minVolume;
|
|
errVal = snd_mixer_selem_set_capture_volume_range(
|
|
_inputMixerElement, minVol, maxVol);
|
|
RTC_LOG(LS_VERBOSE) << "Capture hardware volume range, min: " << minVol
|
|
<< ", max: " << maxVol;
|
|
if (errVal != 0)
|
|
{
|
|
RTC_LOG(LS_ERROR) << "Error setting capture volume range: "
|
|
<< snd_strerror(errVal);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
*/
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::MicrophoneVolume(uint32_t& volume) const {
|
|
if (_inputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable input mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
long int vol(0);
|
|
|
|
int errVal = LATE(snd_mixer_selem_get_capture_volume)(
|
|
_inputMixerElement, (snd_mixer_selem_channel_id_t)0, &vol);
|
|
if (errVal < 0) {
|
|
RTC_LOG(LS_ERROR) << "Error getting inputvolume: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
return -1;
|
|
}
|
|
RTC_LOG(LS_VERBOSE)
|
|
<< "AudioMixerManagerLinuxALSA::MicrophoneVolume() => vol=" << vol;
|
|
|
|
volume = static_cast<uint32_t>(vol);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::MaxMicrophoneVolume(
|
|
uint32_t& maxVolume) const {
|
|
if (_inputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable input mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
long int minVol(0);
|
|
long int maxVol(0);
|
|
|
|
// check if we have mic volume at all
|
|
if (!LATE(snd_mixer_selem_has_capture_volume)(_inputMixerElement)) {
|
|
RTC_LOG(LS_ERROR) << "No microphone volume available";
|
|
return -1;
|
|
}
|
|
|
|
int errVal = LATE(snd_mixer_selem_get_capture_volume_range)(
|
|
_inputMixerElement, &minVol, &maxVol);
|
|
|
|
RTC_LOG(LS_VERBOSE) << "Microphone hardware volume range, min: " << minVol
|
|
<< ", max: " << maxVol;
|
|
if (maxVol <= minVol) {
|
|
RTC_LOG(LS_ERROR) << "Error getting microphone volume range: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
}
|
|
|
|
maxVolume = static_cast<uint32_t>(maxVol);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::MinMicrophoneVolume(
|
|
uint32_t& minVolume) const {
|
|
if (_inputMixerElement == NULL) {
|
|
RTC_LOG(LS_WARNING) << "no avaliable input mixer element exists";
|
|
return -1;
|
|
}
|
|
|
|
long int minVol(0);
|
|
long int maxVol(0);
|
|
|
|
int errVal = LATE(snd_mixer_selem_get_capture_volume_range)(
|
|
_inputMixerElement, &minVol, &maxVol);
|
|
|
|
RTC_LOG(LS_VERBOSE) << "Microphone hardware volume range, min: " << minVol
|
|
<< ", max: " << maxVol;
|
|
if (maxVol <= minVol) {
|
|
RTC_LOG(LS_ERROR) << "Error getting microphone volume range: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
}
|
|
|
|
minVolume = static_cast<uint32_t>(minVol);
|
|
|
|
return 0;
|
|
}
|
|
|
|
// ============================================================================
|
|
// Private Methods
|
|
// ============================================================================
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::LoadMicMixerElement() const {
|
|
int errVal = LATE(snd_mixer_load)(_inputMixerHandle);
|
|
if (errVal < 0) {
|
|
RTC_LOG(LS_ERROR) << "snd_mixer_load(_inputMixerHandle), error: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
_inputMixerHandle = NULL;
|
|
return -1;
|
|
}
|
|
|
|
snd_mixer_elem_t* elem = NULL;
|
|
snd_mixer_elem_t* micElem = NULL;
|
|
unsigned mixerIdx = 0;
|
|
const char* selemName = NULL;
|
|
|
|
// Find and store handles to the right mixer elements
|
|
for (elem = LATE(snd_mixer_first_elem)(_inputMixerHandle); elem;
|
|
elem = LATE(snd_mixer_elem_next)(elem), mixerIdx++) {
|
|
if (LATE(snd_mixer_selem_is_active)(elem)) {
|
|
selemName = LATE(snd_mixer_selem_get_name)(elem);
|
|
if (strcmp(selemName, "Capture") == 0) // "Capture", "Mic"
|
|
{
|
|
_inputMixerElement = elem;
|
|
RTC_LOG(LS_VERBOSE) << "Capture element set";
|
|
} else if (strcmp(selemName, "Mic") == 0) {
|
|
micElem = elem;
|
|
RTC_LOG(LS_VERBOSE) << "Mic element found";
|
|
}
|
|
}
|
|
|
|
if (_inputMixerElement) {
|
|
// Use the first Capture element that is found
|
|
// The second one may not work
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (_inputMixerElement == NULL) {
|
|
// We didn't find a Capture handle, use Mic.
|
|
if (micElem != NULL) {
|
|
_inputMixerElement = micElem;
|
|
RTC_LOG(LS_VERBOSE) << "Using Mic as capture volume.";
|
|
} else {
|
|
_inputMixerElement = NULL;
|
|
RTC_LOG(LS_ERROR) << "Could not find capture volume on the mixer.";
|
|
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t AudioMixerManagerLinuxALSA::LoadSpeakerMixerElement() const {
|
|
int errVal = LATE(snd_mixer_load)(_outputMixerHandle);
|
|
if (errVal < 0) {
|
|
RTC_LOG(LS_ERROR) << "snd_mixer_load(_outputMixerHandle), error: "
|
|
<< LATE(snd_strerror)(errVal);
|
|
_outputMixerHandle = NULL;
|
|
return -1;
|
|
}
|
|
|
|
snd_mixer_elem_t* elem = NULL;
|
|
snd_mixer_elem_t* masterElem = NULL;
|
|
snd_mixer_elem_t* speakerElem = NULL;
|
|
unsigned mixerIdx = 0;
|
|
const char* selemName = NULL;
|
|
|
|
// Find and store handles to the right mixer elements
|
|
for (elem = LATE(snd_mixer_first_elem)(_outputMixerHandle); elem;
|
|
elem = LATE(snd_mixer_elem_next)(elem), mixerIdx++) {
|
|
if (LATE(snd_mixer_selem_is_active)(elem)) {
|
|
selemName = LATE(snd_mixer_selem_get_name)(elem);
|
|
RTC_LOG(LS_VERBOSE) << "snd_mixer_selem_get_name " << mixerIdx << ": "
|
|
<< selemName << " =" << elem;
|
|
|
|
// "Master", "PCM", "Wave", "Master Mono", "PC Speaker", "PCM", "Wave"
|
|
if (strcmp(selemName, "PCM") == 0) {
|
|
_outputMixerElement = elem;
|
|
RTC_LOG(LS_VERBOSE) << "PCM element set";
|
|
} else if (strcmp(selemName, "Master") == 0) {
|
|
masterElem = elem;
|
|
RTC_LOG(LS_VERBOSE) << "Master element found";
|
|
} else if (strcmp(selemName, "Speaker") == 0) {
|
|
speakerElem = elem;
|
|
RTC_LOG(LS_VERBOSE) << "Speaker element found";
|
|
}
|
|
}
|
|
|
|
if (_outputMixerElement) {
|
|
// We have found the element we want
|
|
break;
|
|
}
|
|
}
|
|
|
|
// If we didn't find a PCM Handle, use Master or Speaker
|
|
if (_outputMixerElement == NULL) {
|
|
if (masterElem != NULL) {
|
|
_outputMixerElement = masterElem;
|
|
RTC_LOG(LS_VERBOSE) << "Using Master as output volume.";
|
|
} else if (speakerElem != NULL) {
|
|
_outputMixerElement = speakerElem;
|
|
RTC_LOG(LS_VERBOSE) << "Using Speaker as output volume.";
|
|
} else {
|
|
_outputMixerElement = NULL;
|
|
RTC_LOG(LS_ERROR) << "Could not find output volume in the mixer.";
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void AudioMixerManagerLinuxALSA::GetControlName(char* controlName,
|
|
char* deviceName) const {
|
|
// Example
|
|
// deviceName: "front:CARD=Intel,DEV=0"
|
|
// controlName: "hw:CARD=Intel"
|
|
char* pos1 = strchr(deviceName, ':');
|
|
char* pos2 = strchr(deviceName, ',');
|
|
if (!pos2) {
|
|
// Can also be default:CARD=Intel
|
|
pos2 = &deviceName[strlen(deviceName)];
|
|
}
|
|
if (pos1 && pos2) {
|
|
strcpy(controlName, "hw");
|
|
int nChar = (int)(pos2 - pos1);
|
|
strncpy(&controlName[2], pos1, nChar);
|
|
controlName[2 + nChar] = '\0';
|
|
} else {
|
|
strcpy(controlName, deviceName);
|
|
}
|
|
}
|
|
|
|
} // namespace webrtc
|