git-svn-id: http://webrtc.googlecode.com/svn/trunk@4 4adac7df-926f-26a2-2b94-8c16560cd09d

modules/utility/source/coder.h

@@ -0,0 +1,69 @@
+/*
+ *  Copyright (c) 2011 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_UTILITY_SOURCE_CODER_H_
+#define WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_
+
+#include "audio_coding_module.h"
+#include "common_types.h"
+#include "typedefs.h"
+
+namespace webrtc {
+class AudioFrame;
+
+class AudioCoder : public AudioPacketizationCallback
+{
+public:
+    AudioCoder(WebRtc_UWord32 instanceID);
+    ~AudioCoder();
+
+    WebRtc_Word32 SetEncodeCodec(
+        const CodecInst& codecInst,
+	ACMAMRPackingFormat amrFormat = AMRBandwidthEfficient);
+
+    WebRtc_Word32 SetDecodeCodec(
+        const CodecInst& codecInst,
+	ACMAMRPackingFormat amrFormat = AMRBandwidthEfficient);
+
+    WebRtc_Word32 Decode(AudioFrame& decodedAudio, WebRtc_UWord32 sampFreqHz,
+			 const WebRtc_Word8* incomingPayload,
+			 WebRtc_Word32  payloadLength);
+
+    WebRtc_Word32 PlayoutData(AudioFrame& decodedAudio,
+			      WebRtc_UWord16& sampFreqHz);
+
+    WebRtc_Word32 Encode(const AudioFrame& audio,
+                         WebRtc_Word8*   encodedData,
+			 WebRtc_UWord32& encodedLengthInBytes);
+
+protected:
+    virtual WebRtc_Word32 SendData(FrameType frameType,
+				   WebRtc_UWord8 payloadType,
+				   WebRtc_UWord32 timeStamp,
+				   const WebRtc_UWord8* payloadData,
+				   WebRtc_UWord16 payloadSize,
+				   const RTPFragmentationHeader* fragmentation);
+
+private:
+    WebRtc_UWord32 _instanceID;
+
+    AudioCodingModule* _acm;
+
+    CodecInst _receiveCodec;
+
+    WebRtc_UWord32 _encodeTimestamp;
+    WebRtc_Word8*  _encodedData;
+    WebRtc_UWord32 _encodedLengthInBytes;
+
+    WebRtc_UWord32 _decodeTimestamp;
+};
+} // namespace webrtc
+
+#endif // WEBRTC_MODULES_UTILITY_SOURCE_CODER_H_