1 files changed, 63 insertions, 0 deletions
diff --git a/webrtc/modules/audio_coding/codecs/ilbc/audio_encoder_ilbc.h b/webrtc/modules/audio_coding/codecs/ilbc/audio_encoder_ilbc.h
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index 0000000000..102a274642
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+++ b/webrtc/modules/audio_coding/codecs/ilbc/audio_encoder_ilbc.h
@@ -0,0 +1,63 @@
+/*
+ *  Copyright (c) 2014 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_ILBC_AUDIO_ENCODER_ILBC_H_
+#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_AUDIO_ENCODER_ILBC_H_
+
+#include "webrtc/base/scoped_ptr.h"
+#include "webrtc/modules/audio_coding/codecs/audio_encoder.h"
+#include "webrtc/modules/audio_coding/codecs/ilbc/ilbc.h"
+
+namespace webrtc {
+
+struct CodecInst;
+
+class AudioEncoderIlbc final : public AudioEncoder {
+ public:
+  struct Config {
+    bool IsOk() const;
+
+    int payload_type = 102;
+    int frame_size_ms = 30;  // Valid values are 20, 30, 40, and 60 ms.
+    // Note that frame size 40 ms produces encodings with two 20 ms frames in
+    // them, and frame size 60 ms consists of two 30 ms frames.
+  };
+
+  explicit AudioEncoderIlbc(const Config& config);
+  explicit AudioEncoderIlbc(const CodecInst& codec_inst);
+  ~AudioEncoderIlbc() override;
+
+  size_t MaxEncodedBytes() const override;
+  int SampleRateHz() const override;
+  size_t NumChannels() const override;
+  size_t Num10MsFramesInNextPacket() const override;
+  size_t Max10MsFramesInAPacket() const override;
+  int GetTargetBitrate() const override;
+  EncodedInfo EncodeInternal(uint32_t rtp_timestamp,
+                             rtc::ArrayView<const int16_t> audio,
+                             size_t max_encoded_bytes,
+                             uint8_t* encoded) override;
+  void Reset() override;
+
+ private:
+  size_t RequiredOutputSizeBytes() const;
+
+  static const size_t kMaxSamplesPerPacket = 480;
+  const Config config_;
+  const size_t num_10ms_frames_per_packet_;
+  size_t num_10ms_frames_buffered_;
+  uint32_t first_timestamp_in_buffer_;
+  int16_t input_buffer_[kMaxSamplesPerPacket];
+  IlbcEncoderInstance* encoder_;
+  RTC_DISALLOW_COPY_AND_ASSIGN(AudioEncoderIlbc);
+};
+
+}  // namespace webrtc
+#endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_ILBC_AUDIO_ENCODER_ILBC_H_