Moves ownership of OpenSL engine object to Android audio manager

webrtc/modules/audio_device/android/opensles_common.cc

 /*
  *  Copyright (c) 2013 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.
  */
 
 #include "webrtc/modules/audio_device/android/opensles_common.h"
 
 #include <assert.h>
+#include <SLES/OpenSLES.h>
 
+#include "webrtc/base/arraysize.h"
 #include "webrtc/modules/audio_device/android/audio_common.h"
 
 using webrtc::kNumChannels;
 
 namespace webrtc {
 
+// Returns a string representation given an integer SL_RESULT_XXX code.
+// The mapping can be found in <SLES/OpenSLES.h>.
+const char* GetSLErrorString(size_t code) {
+  static const char* sl_error_strings[] = {
+      "SL_RESULT_SUCCESS",                 // 0
+      "SL_RESULT_PRECONDITIONS_VIOLATED",  // 1
+      "SL_RESULT_PARAMETER_INVALID",       // 2
+      "SL_RESULT_MEMORY_FAILURE",          // 3
+      "SL_RESULT_RESOURCE_ERROR",          // 4
+      "SL_RESULT_RESOURCE_LOST",           // 5
+      "SL_RESULT_IO_ERROR",                // 6
+      "SL_RESULT_BUFFER_INSUFFICIENT",     // 7
+      "SL_RESULT_CONTENT_CORRUPTED",       // 8
+      "SL_RESULT_CONTENT_UNSUPPORTED",     // 9
+      "SL_RESULT_CONTENT_NOT_FOUND",       // 10
+      "SL_RESULT_PERMISSION_DENIED",       // 11
+      "SL_RESULT_FEATURE_UNSUPPORTED",     // 12
+      "SL_RESULT_INTERNAL_ERROR",          // 13
+      "SL_RESULT_UNKNOWN_ERROR",           // 14
+      "SL_RESULT_OPERATION_ABORTED",       // 15
+      "SL_RESULT_CONTROL_LOST",            // 16
+  };
+
+  if (code >= arraysize(sl_error_strings)) {
+    return "SL_RESULT_UNKNOWN_ERROR";
+  }
+  return sl_error_strings[code];
+}
+
 SLDataFormat_PCM CreatePcmConfiguration(int sample_rate) {
   SLDataFormat_PCM configuration;
   configuration.formatType = SL_DATAFORMAT_PCM;
   configuration.numChannels = kNumChannels;
   // According to the opensles documentation in the ndk:
   // samplesPerSec is actually in units of milliHz, despite the misleading name.
   // It further recommends using constants. However, this would lead to a lot
   // of boilerplate code so it is not done here.
   configuration.samplesPerSec = sample_rate * 1000;
   configuration.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
   configuration.containerSize = SL_PCMSAMPLEFORMAT_FIXED_16;
   configuration.channelMask = SL_SPEAKER_FRONT_CENTER;
   if (2 == configuration.numChannels) {
     configuration.channelMask =
         SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
   }
   configuration.endianness = SL_BYTEORDER_LITTLEENDIAN;
   return configuration;
 }
 
 }  // namespace webrtc_opensl