5ac387c4d1
This is a copy of http://review.webrtc.org/864014/ This adds a FuncDurationEst to each codec instance which estimates the duration of a packet given the packet contents and the duration of the previous packet. By default, this simply returns the duration of the previous packet (which is what is currently assumed to be the duration of all future packets). This patch also provides an initial implementation of this function for G.711 which returns the actual number of samples in the packet. BUG=issue1015 Review URL: https://webrtc-codereview.appspot.com/935016 git-svn-id: http://webrtc.googlecode.com/svn/trunk@3129 4adac7df-926f-26a2-2b94-8c16560cd09d
129 lines
3.6 KiB
C
129 lines
3.6 KiB
C
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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/*
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* Interface for the codec database.
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*/
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#ifndef CODEC_DB_H
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#define CODEC_DB_H
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#include "typedefs.h"
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#include "webrtc_neteq.h"
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#include "codec_db_defines.h"
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#include "neteq_defines.h"
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#if defined(NETEQ_48KHZ_WIDEBAND)
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#define NUM_CNG_CODECS 4
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#elif defined(NETEQ_32KHZ_WIDEBAND)
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#define NUM_CNG_CODECS 3
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#elif defined(NETEQ_WIDEBAND)
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#define NUM_CNG_CODECS 2
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#else
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#define NUM_CNG_CODECS 1
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#endif
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typedef struct
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{
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WebRtc_Word16 position[NUM_TOTAL_CODECS];
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WebRtc_Word16 nrOfCodecs;
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WebRtc_Word16 payloadType[NUM_CODECS];
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FuncDecode funcDecode[NUM_CODECS];
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FuncDecode funcDecodeRCU[NUM_CODECS];
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FuncDecodePLC funcDecodePLC[NUM_CODECS];
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FuncDecodeInit funcDecodeInit[NUM_CODECS];
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FuncAddLatePkt funcAddLatePkt[NUM_CODECS];
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FuncGetMDinfo funcGetMDinfo[NUM_CODECS];
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FuncGetPitchInfo funcGetPitch[NUM_CODECS];
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FuncUpdBWEst funcUpdBWEst[NUM_CODECS];
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FuncDurationEst funcDurationEst[NUM_CODECS];
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FuncGetErrorCode funcGetErrorCode[NUM_CODECS];
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void * codec_state[NUM_CODECS];
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WebRtc_UWord16 codec_fs[NUM_CODECS];
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WebRtc_Word16 CNGpayloadType[NUM_CNG_CODECS];
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} CodecDbInst_t;
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#define NO_SPLIT -1 /* codec payload cannot be split */
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typedef struct
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{
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WebRtc_Word16 deltaBytes;
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WebRtc_Word16 deltaTime;
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} SplitInfo_t;
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/*
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* Resets the codec database.
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*/
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int WebRtcNetEQ_DbReset(CodecDbInst_t *inst);
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/*
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* Adds a new codec to the database.
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*/
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int WebRtcNetEQ_DbAdd(CodecDbInst_t *inst, enum WebRtcNetEQDecoder codec,
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WebRtc_Word16 payloadType, FuncDecode funcDecode,
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FuncDecode funcDecodeRCU, FuncDecodePLC funcDecodePLC,
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FuncDecodeInit funcDecodeInit, FuncAddLatePkt funcAddLatePkt,
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FuncGetMDinfo funcGetMDinfo, FuncGetPitchInfo funcGetPitch,
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FuncUpdBWEst funcUpdBWEst, FuncDurationEst funcDurationEst,
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FuncGetErrorCode funcGetErrorCode, void* codec_state,
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WebRtc_UWord16 codec_fs);
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/*
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* Removes a codec from the database.
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*/
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int WebRtcNetEQ_DbRemove(CodecDbInst_t *inst, enum WebRtcNetEQDecoder codec);
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/*
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* Get the decoder function pointers for a codec.
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*/
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int WebRtcNetEQ_DbGetPtrs(CodecDbInst_t *inst, enum WebRtcNetEQDecoder,
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CodecFuncInst_t *ptr_inst);
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/*
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* Returns payload number given a codec identifier.
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*/
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int WebRtcNetEQ_DbGetPayload(CodecDbInst_t *inst, enum WebRtcNetEQDecoder codecID);
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/*
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* Returns codec identifier given a payload number.
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*/
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int WebRtcNetEQ_DbGetCodec(const CodecDbInst_t *inst, int payloadType);
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/*
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* Extracts the Payload Split information of the codec with the specified payloadType.
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*/
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int WebRtcNetEQ_DbGetSplitInfo(SplitInfo_t *inst, enum WebRtcNetEQDecoder codecID,
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int codedsize);
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/*
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* Returns 1 if codec is multiple description type, 0 otherwise.
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*/
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int WebRtcNetEQ_DbIsMDCodec(enum WebRtcNetEQDecoder codecID);
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/*
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* Returns 1 if payload type is registered as a CNG codec, 0 otherwise.
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*/
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int WebRtcNetEQ_DbIsCNGPayload(const CodecDbInst_t *inst, int payloadType);
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/*
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* Return the sample rate for the codec with the given payload type, 0 if error.
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*/
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WebRtc_UWord16 WebRtcNetEQ_DbGetSampleRate(CodecDbInst_t *inst, int payloadType);
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#endif
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