opensles: fix API level check for FLOAT
diff --git a/src/opensles/AudioInputStreamOpenSLES.cpp b/src/opensles/AudioInputStreamOpenSLES.cpp
index 5cdadb5..71e27a1 100644
--- a/src/opensles/AudioInputStreamOpenSLES.cpp
+++ b/src/opensles/AudioInputStreamOpenSLES.cpp
@@ -108,14 +108,16 @@
      * data format type: SLAndroidDataFormat_PCM_EX. If running on API 21+ use this newer format
      * type, creating it from our original format.
      */
+#if __ANDROID_API__ >= __ANDROID_API_L__
     SLAndroidDataFormat_PCM_EX format_pcm_ex;
-    if (__ANDROID_API__ >= __ANDROID_API_L__) {
+    if (getSdkVersion() >= __ANDROID_API_L__) {
         SLuint32 representation = OpenSLES_ConvertFormatToRepresentation(getFormat());
         // Fill in the format structure.
         format_pcm_ex = OpenSLES_createExtendedFormat(format_pcm, representation);
         // Use in place of the previous format.
         audioSink.pFormat = &format_pcm_ex;
     }
+#endif // __ANDROID_API_L__
 
     // configure audio source
     SLDataLocator_IODevice loc_dev = {SL_DATALOCATOR_IODEVICE,
diff --git a/src/opensles/AudioOutputStreamOpenSLES.cpp b/src/opensles/AudioOutputStreamOpenSLES.cpp
index a8de563..749b509 100644
--- a/src/opensles/AudioOutputStreamOpenSLES.cpp
+++ b/src/opensles/AudioOutputStreamOpenSLES.cpp
@@ -108,6 +108,7 @@
      * data format type: SLAndroidDataFormat_PCM_EX. If running on API 21+ use this newer format
      * type, creating it from our original format.
      */
+#if __ANDROID_API__ >= __ANDROID_API_L__
     SLAndroidDataFormat_PCM_EX format_pcm_ex;
     if (getSdkVersion() >= __ANDROID_API_L__) {
         SLuint32 representation = OpenSLES_ConvertFormatToRepresentation(getFormat());
@@ -116,6 +117,7 @@
         // Use in place of the previous format.
         audioSrc.pFormat = &format_pcm_ex;
     }
+#endif // __ANDROID_API_L__
 
     result = OutputMixerOpenSL::getInstance().createAudioPlayer(&mObjectInterface,
                                                                           &audioSrc);
diff --git a/src/opensles/OpenSLESUtilities.cpp b/src/opensles/OpenSLESUtilities.cpp
index 45f1c18..5d908f2 100644
--- a/src/opensles/OpenSLESUtilities.cpp
+++ b/src/opensles/OpenSLESUtilities.cpp
@@ -45,6 +45,7 @@
     return errStrings[code];
 }
 
+#if __ANDROID_API__ >= __ANDROID_API_L__
 SLAndroidDataFormat_PCM_EX OpenSLES_createExtendedFormat(
         SLDataFormat_PCM format, SLuint32 representation) {
     SLAndroidDataFormat_PCM_EX format_pcm_ex;
@@ -58,7 +59,9 @@
     format_pcm_ex.representation = representation;
     return format_pcm_ex;
 }
+#endif // __ANDROID_API_L__
 
+#if __ANDROID_API__ >= __ANDROID_API_L__
 SLuint32 OpenSLES_ConvertFormatToRepresentation(AudioFormat format) {
     switch(format) {
         case AudioFormat::I16:
@@ -71,5 +74,6 @@
             return 0;
     }
 }
+#endif // __ANDROID_API_L__
 
 } // namespace oboe
\ No newline at end of file
diff --git a/src/opensles/OpenSLESUtilities.h b/src/opensles/OpenSLESUtilities.h
index 941a527..dbcd7c9 100644
--- a/src/opensles/OpenSLESUtilities.h
+++ b/src/opensles/OpenSLESUtilities.h
@@ -24,6 +24,7 @@
 
 const char *getSLErrStr(SLresult code);
 
+#if __ANDROID_API__ >= __ANDROID_API_L__
 /**
  * Creates an extended PCM format from the supplied format and data representation. This method
  * should only be called on Android devices with API level 21+. API 21 introduced the
@@ -37,9 +38,8 @@
 SLAndroidDataFormat_PCM_EX OpenSLES_createExtendedFormat(SLDataFormat_PCM format,
                                                          SLuint32 representation);
 
-
-    SLuint32 OpenSLES_ConvertFormatToRepresentation(AudioFormat format);
-
+SLuint32 OpenSLES_ConvertFormatToRepresentation(AudioFormat format);
+#endif // __ANDROID_API_L__
 
 } // namespace oboe