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76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
/**@file Declarations for common-use control-layer functions. */
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/*
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* Copyright 2014 Range Networks, Inc.
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*
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* This software is distributed under multiple licenses;
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* see the COPYING file in the main directory for licensing
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* information for this specific distribution.
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*
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* This use of this software may be subject to additional restrictions.
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* See the LEGAL file in the main directory for details.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef _CODECSET_H_
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#define _CODECSET_H_ 1
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namespace GSM { class L3MobileIdentity; };
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namespace Control {
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// Meaning of these bits is hard to find: It is in 48.008 3.2.2.11:
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enum CodecType { // Codec Bitmap defined in 26.103 6.2. It is one or two bytes
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// low bit of first byte in bitmap
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CodecTypeUndefined = 0,
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GSM_FR = 0x1, // aka GSM610
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GSM_HR = 0x2,
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GSM_EFR = 0x4,
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AMR_FR = 0x8,
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AMR_HR = 0x10,
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UMTS_AMR = 0x20,
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UMTS_AMR2 = 0x40,
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TDMA_EFR = 0x80, // high bit of first byte in bitmap
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// We can totally ignore the second byte:
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PDC_EFR = 0x100, // low bit of second byte in bitmap
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AMR_FR_WB = 0x200,
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UMTS_AMR_WB = 0x400,
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OHR_AMR = 0x800,
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OFR_AMR_WB = 0x1000,
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OHR_AMR_WB = 0x2000,
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// then two reserved bits.
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// In addition the above codecs defined in the GSM spec and used on the air-interface,
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// we will put other codecs we might want to use for RTP on the SIP interface in here too
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// so we can use the same CodecSet in the SIP directory.
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// This is not in the spec, but use this value to indicate none of the codecs above.
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PCMULAW = 0x10000, // G.711 PCM, 64kbps. comes in two flavors: uLaw and aLaw.
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PCMALAW = 0x20000 // We dont support it yet.
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// There is also G711.1, which is slighly wider band, 96kbps.
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};
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const char *CodecType2Name(CodecType ct);
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// (pat) Added 10-22-2012.
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// 3GPP 24.008 10.5.4.32 and 3GPP 26.103
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class CodecSet {
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public:
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CodecType mCodecs; // It is a set of CodecEnum
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bool isSet(CodecType bit) { return mCodecs & bit; }
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bool isEmpty() { return !mCodecs; }
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CodecSet(): mCodecs(CodecTypeUndefined) {}
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CodecSet(CodecType wtype) : mCodecs(wtype) {}
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// Allow logical OR of two CodecSets together.
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void orSet(CodecSet other) { mCodecs = (CodecType) (mCodecs | other.mCodecs); }
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void orType(CodecType vals) { mCodecs = (CodecType) (mCodecs | vals); }
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CodecSet operator|(CodecSet other) { return CodecSet((CodecType)(mCodecs | other.mCodecs)); }
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void text(std::ostream&) const;
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friend std::ostream& operator<<(std::ostream& os, const CodecSet&);
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};
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}; // namespace Control
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#endif
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