Removes unused APIs from the ADM (part II)

webrtc/modules/audio_device/linux/audio_mixer_manager_alsa_linux.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 516 matching lines @@
  {
  LOG(LS_ERROR) << "Error setting playback volume range: "
                << snd_strerror(errVal);
  return -1;
  }
 
  return 0;
  }
  */
 
-int32_t AudioMixerManagerLinuxALSA::SpeakerVolumeStepSize(
-    uint16_t& stepSize) const
-{
-
-    if (_outputMixerHandle == NULL)
-    {
-        LOG(LS_WARNING) << "no avaliable output mixer exists";
-        return -1;
-    }
-
-    // The step size is always 1 for ALSA
-    stepSize = 1;
-
-    return 0;
-}
-
 int32_t AudioMixerManagerLinuxALSA::SpeakerVolumeIsAvailable(
     bool& available)
 {
     if (_outputMixerElement == NULL)
     {
         LOG(LS_WARNING) << "no avaliable output mixer element exists";
         return -1;
     }
 
     available = LATE(snd_mixer_selem_has_playback_volume)(_outputMixerElement);
@@ skipping 173 matching lines @@
                       << LATE(snd_strerror)(errVal);
         return -1;
     }
 
     // Note value = 0 (off) means muted
     enabled = (bool) !value;
 
     return 0;
 }
 
-int32_t AudioMixerManagerLinuxALSA::MicrophoneBoostIsAvailable(
-    bool& available)
-{
-    if (_inputMixerHandle == NULL)
-    {
-        LOG(LS_WARNING) << "no avaliable input mixer exists";
-        return -1;
-    }
-
-    // Microphone boost cannot be enabled through ALSA Simple Mixer Interface
-    available = false;
-
-    return 0;
-}
-
-int32_t AudioMixerManagerLinuxALSA::SetMicrophoneBoost(bool enable)
-{
-    LOG(LS_VERBOSE) << "AudioMixerManagerLinuxALSA::SetMicrophoneBoost(enable="
-                    << enable << ")";
-
-    rtc::CritScope lock(&_critSect);
-
-    if (_inputMixerHandle == NULL)
-    {
-        LOG(LS_WARNING) << "no avaliable input mixer exists";
-        return -1;
-    }
-
-    // Ensure that the selected microphone destination has a valid mute control.
-    bool available(false);
-    MicrophoneMuteIsAvailable(available);
-    if (!available)
-    {
-        LOG(LS_WARNING) << "it is not possible to enable microphone boost";
-        return -1;
-    }
-
-    // It is assumed that the call above fails!
-
-    return (0);
-}
-
-int32_t AudioMixerManagerLinuxALSA::MicrophoneBoost(bool& enabled) const
-{
-
-    if (_inputMixerHandle == NULL)
-    {
-        LOG(LS_WARNING) << "no avaliable input mixer exists";
-        return -1;
-    }
-
-    // Microphone boost cannot be enabled on this platform!
-    enabled = false;
-
-    return 0;
-}
-
 int32_t AudioMixerManagerLinuxALSA::MicrophoneVolumeIsAvailable(
     bool& available)
 {
     if (_inputMixerElement == NULL)
     {
         LOG(LS_WARNING) << "no avaliable input mixer element exists";
         return -1;
     }
 
     available = LATE(snd_mixer_selem_has_capture_volume)(_inputMixerElement);
@@ skipping 207 matching lines @@
     {
         LOG(LS_ERROR) << "Error getting microphone volume range: "
                       << LATE(snd_strerror)(errVal);
     }
 
     minVolume = static_cast<uint32_t> (minVol);
 
     return 0;
 }
 
-int32_t AudioMixerManagerLinuxALSA::MicrophoneVolumeStepSize(
-    uint16_t& stepSize) const
-{
-
-    if (_inputMixerHandle == NULL)
-    {
-        LOG(LS_WARNING) << "no avaliable input mixer exists";
-        return -1;
-    }
-
-    // The step size is always 1 for ALSA
-    stepSize = 1;
-
-    return 0;
-}
-
 // ============================================================================
 //                                 Private Methods
 // ============================================================================
 
 int32_t AudioMixerManagerLinuxALSA::LoadMicMixerElement() const
 {
     int errVal = LATE(snd_mixer_load)(_inputMixerHandle);
     if (errVal < 0)
     {
         LOG(LS_ERROR) << "snd_mixer_load(_inputMixerHandle), error: "
@@ skipping 141 matching lines @@
         int nChar = (int) (pos2 - pos1);
         strncpy(&controlName[2], pos1, nChar);
         controlName[2 + nChar] = '\0';
     } else {
         strcpy(controlName, deviceName);
     }
 
 }
 
 }