Injectable audio encoders: BuiltinAudioEncoderFactory

webrtc/modules/audio_coding/codecs/builtin_audio_encoder_factory.h

Index: webrtc/modules/audio_coding/codecs/builtin_audio_encoder_factory.h
diff --git a/webrtc/modules/audio_coding/codecs/builtin_audio_encoder_factory.h b/webrtc/modules/audio_coding/codecs/builtin_audio_encoder_factory.h
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index 0000000000000000000000000000000000000000..150a76ce10e6d83910302b2d663363e0e1925e40
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+++ b/webrtc/modules/audio_coding/codecs/builtin_audio_encoder_factory.h
@@ -0,0 +1,25 @@
+/*
+ *  Copyright (c) 2017 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.
+ */
+
+#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_BUILTIN_AUDIO_ENCODER_FACTORY_H_
+#define WEBRTC_MODULES_AUDIO_CODING_CODECS_BUILTIN_AUDIO_ENCODER_FACTORY_H_
+
+#include "webrtc/base/scoped_ref_ptr.h"
+#include "webrtc/modules/audio_coding/codecs/audio_encoder_factory.h"
+
+namespace webrtc {
+
+// Creates a new factory that can create the built-in types of audio encoders.

[minyue-webrtc, 2017/03/23 11:36:53]

can a factory produce more than one audio encoder. The sentence sounded that way

[ossu, 2017/03/23 12:01:59]

Yes. It can create more than one and of more than one type. 

[minyue-webrtc, 2017/03/23 12:20:22]

Acknowledged.

+// NOTE: This function is still under development and may change without notice.
+rtc::scoped_refptr<AudioEncoderFactory> CreateBuiltinAudioEncoderFactory();
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_BUILTIN_AUDIO_ENCODER_FACTORY_H_