audiopolicy: do not update channelMask for voice input source

It's not needed to update the channel mask based on source because
the source is sent to audio HAL through set_parameters() and if source
equal to VOICE_CALL does not mean that two channels need to capture.
If recorder app selects AMR as encoding format but source as RX+TX means
both RX and TX are captured in ONE channel. So use channels set by the app
and use source for the type of capture (RX only, TX only, or RX+TX).

Change-Id: Iedf23318356480ba939fc06df4ae4f12906322b3

1 files changed, 0 insertions, 14 deletions

diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index e7f6864..55c7225 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -1356,20 +1356,6 @@ status_t AudioPolicyManager::getInputForAttr(const audio_attributes_t *attr,
         } else {
             *inputType = API_INPUT_LEGACY;
         }
-        // adapt channel selection to input source
-        switch (inputSource) {
-        case AUDIO_SOURCE_VOICE_UPLINK:
-            channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK;
-            break;
-        case AUDIO_SOURCE_VOICE_DOWNLINK:
-            channelMask = AUDIO_CHANNEL_IN_VOICE_DNLINK;
-            break;
-        case AUDIO_SOURCE_VOICE_CALL:
-            channelMask = AUDIO_CHANNEL_IN_VOICE_UPLINK | AUDIO_CHANNEL_IN_VOICE_DNLINK;
-            break;
-        default:
-            break;
-        }
         if (inputSource == AUDIO_SOURCE_HOTWORD) {
             ssize_t index = mSoundTriggerSessions.indexOfKey(session);
             if (index >= 0) {