Fix issue 1846343 - part 1

This change is the first part of a fix for issue 1846343, :
- Added new enum values for input sources in AudioRecord and MediaRecorder for voice uplink, downlink and uplink+downlink sources.
- renamed streamType to inputSource in all native functions handling audio record.

A second change is required in opencore author driver and android audio input to completely fix the issue.
diff --git a/libs/audioflinger/AudioFlinger.cpp b/libs/audioflinger/AudioFlinger.cpp
index e4f4aad..13e457f 100644
--- a/libs/audioflinger/AudioFlinger.cpp
+++ b/libs/audioflinger/AudioFlinger.cpp
@@ -1553,7 +1553,6 @@
 AudioFlinger::MixerThread::TrackBase::TrackBase(
             const sp<MixerThread>& mixerThread,
             const sp<Client>& client,
-            int streamType,
             uint32_t sampleRate,
             int format,
             int channelCount,
@@ -1563,7 +1562,6 @@
     :   RefBase(),
         mMixerThread(mixerThread),
         mClient(client),
-        mStreamType(streamType),
         mFrameCount(0),
         mState(IDLE),
         mClientTid(-1),
@@ -1713,12 +1711,13 @@
             int channelCount,
             int frameCount,
             const sp<IMemory>& sharedBuffer)
-    :   TrackBase(mixerThread, client, streamType, sampleRate, format, channelCount, frameCount, 0, sharedBuffer)
+    :   TrackBase(mixerThread, client, sampleRate, format, channelCount, frameCount, 0, sharedBuffer)
 {
     mVolume[0] = 1.0f;
     mVolume[1] = 1.0f;
     mMute = false;
     mSharedBuffer = sharedBuffer;
+    mStreamType = streamType;
 }
 
 AudioFlinger::MixerThread::Track::~Track()
@@ -1902,15 +1901,15 @@
 AudioFlinger::MixerThread::RecordTrack::RecordTrack(
             const sp<MixerThread>& mixerThread,
             const sp<Client>& client,
-            int streamType,
+            int inputSource,
             uint32_t sampleRate,
             int format,
             int channelCount,
             int frameCount,
             uint32_t flags)
-    :   TrackBase(mixerThread, client, streamType, sampleRate, format,
+    :   TrackBase(mixerThread, client, sampleRate, format,
                   channelCount, frameCount, flags, 0),
-        mOverflow(false)
+        mOverflow(false), mInputSource(inputSource)
 {
 }
 
@@ -2235,7 +2234,7 @@
 
 sp<IAudioRecord> AudioFlinger::openRecord(
         pid_t pid,
-        int streamType,
+        int inputSource,
         uint32_t sampleRate,
         int format,
         int channelCount,
@@ -2258,7 +2257,7 @@
         goto Exit;
     }
 
-    if (uint32_t(streamType) >= AudioRecord::NUM_STREAM_TYPES) {
+    if (uint32_t(inputSource) >= AudioRecord::NUM_INPUT_SOURCES) {
         LOGE("invalid stream type");
         lStatus = BAD_VALUE;
         goto Exit;
@@ -2301,7 +2300,7 @@
         frameCount = ((frameCount - 1)/inFrameCount + 1) * inFrameCount;
     
         // create new record track. The record track uses one track in mHardwareMixerThread by convention.
-        recordTrack = new MixerThread::RecordTrack(mHardwareMixerThread, client, streamType, sampleRate,
+        recordTrack = new MixerThread::RecordTrack(mHardwareMixerThread, client, inputSource, sampleRate,
                                                    format, channelCount, frameCount, flags);
     }
     if (recordTrack->getCblk() == NULL) {
@@ -2408,7 +2407,7 @@
                 LOGV("AudioRecordThread: loop starting");
                 if (mRecordTrack != 0) {
                     input = mAudioHardware->openInputStream(
-                                    mRecordTrack->type(),
+                                    mRecordTrack->inputSource(),
                                     mRecordTrack->format(), 
                                     mRecordTrack->channelCount(), 
                                     mRecordTrack->sampleRate(), 
diff --git a/libs/audioflinger/AudioFlinger.h b/libs/audioflinger/AudioFlinger.h
index c7ca9ec..8e47b29 100644
--- a/libs/audioflinger/AudioFlinger.h
+++ b/libs/audioflinger/AudioFlinger.h
@@ -139,7 +139,7 @@
     // record interface
     virtual sp<IAudioRecord> openRecord(
                                 pid_t pid,
-                                int streamType,
+                                int inputSource,
                                 uint32_t sampleRate,
                                 int format,
                                 int channelCount,
@@ -232,7 +232,6 @@
 
                                 TrackBase(const sp<MixerThread>& mixerThread,
                                         const sp<Client>& client,
-                                        int streamType,
                                         uint32_t sampleRate,
                                         int format,
                                         int channelCount,
@@ -260,10 +259,6 @@
                 return mCblk;
             }
 
-            int type() const {
-                return mStreamType;
-            }
-
             int format() const {
                 return mFormat;
             }
@@ -293,7 +288,6 @@
             sp<Client>          mClient;
             sp<IMemory>         mCblkMemory;
             audio_track_cblk_t* mCblk;
-            int                 mStreamType;
             void*               mBuffer;
             void*               mBufferEnd;
             uint32_t            mFrameCount;
@@ -328,6 +322,11 @@
                     void        mute(bool);
                     void        setVolume(float left, float right);
 
+                    int type() const {
+                        return mStreamType;
+                    }
+
+
         protected:
             friend class MixerThread;
             friend class AudioFlinger;
@@ -364,6 +363,7 @@
             int8_t              mRetryCount;
             sp<IMemory>         mSharedBuffer;
             bool                mResetDone;
+            int                 mStreamType;
         };  // end of Track
 
         // record track
@@ -371,7 +371,7 @@
         public:
                                 RecordTrack(const sp<MixerThread>& mixerThread,
                                         const sp<Client>& client,
-                                        int streamType,
+                                        int inputSource,
                                         uint32_t sampleRate,
                                         int format,
                                         int channelCount,
@@ -385,6 +385,8 @@
                     bool        overflow() { bool tmp = mOverflow; mOverflow = false; return tmp; }
                     bool        setOverflow() { bool tmp = mOverflow; mOverflow = true; return tmp; }
 
+                    int         inputSource() const { return mInputSource; }
+
         private:
             friend class AudioFlinger;
             friend class AudioFlinger::RecordHandle;
@@ -397,6 +399,7 @@
             virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer);
 
             bool                mOverflow;
+            int                 mInputSource;
         };
 
         // playback track
diff --git a/libs/audioflinger/AudioHardwareGeneric.cpp b/libs/audioflinger/AudioHardwareGeneric.cpp
index a97c0bc..1e159b8 100644
--- a/libs/audioflinger/AudioHardwareGeneric.cpp
+++ b/libs/audioflinger/AudioHardwareGeneric.cpp
@@ -98,8 +98,8 @@
         status_t *status, AudioSystem::audio_in_acoustics acoustics)
 {
     // check for valid input source
-    if ((inputSource != AudioRecord::DEFAULT_INPUT) &&
-            (inputSource != AudioRecord::MIC_INPUT)) {
+    if ((inputSource < AudioRecord::DEFAULT_INPUT) ||
+        (inputSource >= AudioRecord::NUM_INPUT_SOURCES)) {
         return 0;
     }
 
diff --git a/libs/audioflinger/AudioHardwareStub.cpp b/libs/audioflinger/AudioHardwareStub.cpp
index c61e6e6..0ab4c60 100644
--- a/libs/audioflinger/AudioHardwareStub.cpp
+++ b/libs/audioflinger/AudioHardwareStub.cpp
@@ -61,8 +61,8 @@
         status_t *status, AudioSystem::audio_in_acoustics acoustics)
 {
     // check for valid input source
-    if ((inputSource != AudioRecord::DEFAULT_INPUT) &&
-            (inputSource != AudioRecord::MIC_INPUT)) {
+    if ((inputSource < AudioRecord::DEFAULT_INPUT) ||
+        (inputSource >= AudioRecord::NUM_INPUT_SOURCES)) {
         return 0;
     }