1 files changed, 111 insertions, 0 deletions
diff --git a/src/modules/audio_coding/codecs/isac/fix/source/entropy_coding.h b/src/modules/audio_coding/codecs/isac/fix/source/entropy_coding.h
new file mode 100644
index 0000000000..298ea223ac
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+++ b/src/modules/audio_coding/codecs/isac/fix/source/entropy_coding.h
@@ -0,0 +1,111 @@
+/*
+ *  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.
+ */
+
+/*
+ * entropy_coding.h
+ *
+ * This header file contains all of the functions used to arithmetically
+ * encode the iSAC bistream
+ *
+ */
+
+#ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_ENTROPY_CODING_H_
+#define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_ENTROPY_CODING_H_
+
+#include "structs.h"
+
+/* decode complex spectrum (return number of bytes in stream) */
+WebRtc_Word16 WebRtcIsacfix_DecodeSpec(Bitstr_dec  *streamdata,
+                                       WebRtc_Word16 *frQ7,
+                                       WebRtc_Word16 *fiQ7,
+                                       WebRtc_Word16 AvgPitchGain_Q12);
+
+/* encode complex spectrum */
+int WebRtcIsacfix_EncodeSpec(const WebRtc_Word16 *fr,
+                             const WebRtc_Word16 *fi,
+                             Bitstr_enc *streamdata,
+                             WebRtc_Word16 AvgPitchGain_Q12);
+
+
+/* decode & dequantize LPC Coef */
+int WebRtcIsacfix_DecodeLpcCoef(Bitstr_dec  *streamdata,
+                                WebRtc_Word32 *LPCCoefQ17,
+                                WebRtc_Word32 *gain_lo_hiQ17,
+                                WebRtc_Word16 *outmodel);
+
+int WebRtcIsacfix_DecodeLpc(WebRtc_Word32 *gain_lo_hiQ17,
+                            WebRtc_Word16 *LPCCoef_loQ15,
+                            WebRtc_Word16 *LPCCoef_hiQ15,
+                            Bitstr_dec  *streamdata,
+                            WebRtc_Word16 *outmodel);
+
+/* quantize & code LPC Coef */
+int WebRtcIsacfix_EncodeLpc(WebRtc_Word32 *gain_lo_hiQ17,
+                            WebRtc_Word16 *LPCCoef_loQ15,
+                            WebRtc_Word16 *LPCCoef_hiQ15,
+                            WebRtc_Word16 *model,
+                            WebRtc_Word32 *sizeQ11,
+                            Bitstr_enc *streamdata,
+                            ISAC_SaveEncData_t* encData,
+                            transcode_obj *transcodeParam);
+
+int WebRtcIsacfix_EstCodeLpcGain(WebRtc_Word32 *gain_lo_hiQ17,
+                                 Bitstr_enc *streamdata,
+                                 ISAC_SaveEncData_t* encData);
+/* decode & dequantize RC */
+int WebRtcIsacfix_DecodeRcCoef(Bitstr_dec *streamdata,
+                               WebRtc_Word16 *RCQ15);
+
+/* quantize & code RC */
+int WebRtcIsacfix_EncodeRcCoef(WebRtc_Word16 *RCQ15,
+                               Bitstr_enc *streamdata);
+
+/* decode & dequantize squared Gain */
+int WebRtcIsacfix_DecodeGain2(Bitstr_dec *streamdata,
+                              WebRtc_Word32 *Gain2);
+
+/* quantize & code squared Gain (input is squared gain) */
+int WebRtcIsacfix_EncodeGain2(WebRtc_Word32 *gain2,
+                              Bitstr_enc *streamdata);
+
+int WebRtcIsacfix_EncodePitchGain(WebRtc_Word16 *PitchGains_Q12,
+                                  Bitstr_enc *streamdata,
+                                  ISAC_SaveEncData_t* encData);
+
+int WebRtcIsacfix_EncodePitchLag(WebRtc_Word16 *PitchLagQ7,
+                                 WebRtc_Word16 *PitchGain_Q12,
+                                 Bitstr_enc *streamdata,
+                                 ISAC_SaveEncData_t* encData);
+
+int WebRtcIsacfix_DecodePitchGain(Bitstr_dec *streamdata,
+                                  WebRtc_Word16 *PitchGain_Q12);
+
+int WebRtcIsacfix_DecodePitchLag(Bitstr_dec *streamdata,
+                                 WebRtc_Word16 *PitchGain_Q12,
+                                 WebRtc_Word16 *PitchLagQ7);
+
+int WebRtcIsacfix_DecodeFrameLen(Bitstr_dec *streamdata,
+                                 WebRtc_Word16 *framelength);
+
+
+int WebRtcIsacfix_EncodeFrameLen(WebRtc_Word16 framelength,
+                                 Bitstr_enc *streamdata);
+
+int WebRtcIsacfix_DecodeSendBandwidth(Bitstr_dec *streamdata,
+                                      WebRtc_Word16 *BWno);
+
+
+int WebRtcIsacfix_EncodeReceiveBandwidth(WebRtc_Word16 *BWno,
+                                         Bitstr_enc *streamdata);
+
+void WebRtcIsacfix_TranscodeLpcCoef(WebRtc_Word32 *tmpcoeffs_gQ6,
+                                    WebRtc_Word16 *index_gQQ);
+
+#endif /* WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_FIX_SOURCE_ENTROPY_CODING_H_ */