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

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niklase@google.com
2011-05-30 11:22:19 +00:00
parent 01813fe945
commit 77ae29bc81
1153 changed files with 404089 additions and 0 deletions
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737
modules/audio_coding/NetEQ/main/source/codec_db.c Normal file
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/*
* 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.
*/
/*
* Implementation of the codec database.
*/
#include "codec_db.h"
#include <string.h> /* to define NULL */
#include "signal_processing_library.h"
#include "neteq_error_codes.h"
/*
* Resets the codec database.
*/
int WebRtcNetEQ_DbReset(CodecDbInst_t *inst)
{
int i;
WebRtcSpl_MemSetW16((WebRtc_Word16*) inst, 0,
sizeof(CodecDbInst_t) / sizeof(WebRtc_Word16));
for (i = 0; i < NUM_TOTAL_CODECS; i++)
{
inst->position[i] = -1;
}
for (i = 0; i < NUM_CODECS; i++)
{
inst->payloadType[i] = -1;
}
for (i = 0; i < NUM_CNG_CODECS; i++)
{
inst->CNGpayloadType[i] = -1;
}
return 0;
}
/*
* Adds a new codec to the database.
*/
int WebRtcNetEQ_DbAdd(CodecDbInst_t *inst, enum WebRtcNetEQDecoder codec,
WebRtc_Word16 payloadType, FuncDecode funcDecode,
FuncDecode funcDecodeRCU, FuncDecodePLC funcDecodePLC,
FuncDecodeInit funcDecodeInit, FuncAddLatePkt funcAddLatePkt,
FuncGetMDinfo funcGetMDinfo, FuncGetPitchInfo funcGetPitch,
FuncUpdBWEst funcUpdBWEst, FuncGetErrorCode funcGetErrorCode,
void* codec_state, WebRtc_UWord16 codec_fs)
{
int temp;
int insertCNGcodec = 0, overwriteCNGcodec = 0, CNGpos = -1;
#ifndef NETEQ_RED_CODEC
if (codec == kDecoderRED)
{
return CODEC_DB_UNSUPPORTED_CODEC;
}
#endif
if (((int) codec <= (int) kDecoderReservedStart) || ((int) codec
>= (int) kDecoderReservedEnd))
{
return CODEC_DB_UNSUPPORTED_CODEC;
}
if ((codec_fs != 8000)
#ifdef NETEQ_WIDEBAND
&&(codec_fs!=16000)
#endif
#ifdef NETEQ_32KHZ_WIDEBAND
&&(codec_fs!=32000)
#endif
#ifdef NETEQ_48KHZ_WIDEBAND
&&(codec_fs!=48000)
#endif
)
{
return CODEC_DB_UNSUPPORTED_FS;
}
/* Ensure that the codec type is supported */
switch (codec)
{
#ifdef NETEQ_PCM16B_CODEC
case kDecoderPCM16B :
#endif
#ifdef NETEQ_G711_CODEC
case kDecoderPCMu :
case kDecoderPCMa :
#endif
#ifdef NETEQ_ILBC_CODEC
case kDecoderILBC :
#endif
#ifdef NETEQ_ISAC_CODEC
case kDecoderISAC :
#endif
#ifdef NETEQ_ISAC_SWB_CODEC
case kDecoderISACswb :
#endif
#ifdef NETEQ_G722_CODEC
case kDecoderG722 :
#endif
#ifdef NETEQ_WIDEBAND
case kDecoderPCM16Bwb :
#endif
#ifdef NETEQ_32KHZ_WIDEBAND
case kDecoderPCM16Bswb32kHz :
#endif
#ifdef NETEQ_CNG_CODEC
case kDecoderCNG :
#endif
#ifdef NETEQ_ATEVENT_DECODE
case kDecoderAVT :
#endif
#ifdef NETEQ_RED_CODEC
case kDecoderRED :
#endif
#ifdef NETEQ_48KHZ_WIDEBAND
case kDecoderPCM16Bswb48kHz :
#endif
#ifdef NETEQ_ARBITRARY_CODEC
case kDecoderArbitrary:
#endif
#ifdef NETEQ_G729_CODEC
case kDecoderG729:
#endif
#ifdef NETEQ_G729_1_CODEC
case kDecoderG729_1 :
#endif
#ifdef NETEQ_G726_CODEC
case kDecoderG726_16 :
case kDecoderG726_24 :
case kDecoderG726_32 :
case kDecoderG726_40 :
#endif
#ifdef NETEQ_G722_1_CODEC
case kDecoderG722_1_16 :
case kDecoderG722_1_24 :
case kDecoderG722_1_32 :
#endif
#ifdef NETEQ_G722_1C_CODEC
case kDecoderG722_1C_24 :
case kDecoderG722_1C_32 :
case kDecoderG722_1C_48 :
#endif
#ifdef NETEQ_SPEEX_CODEC
case kDecoderSPEEX_8 :
case kDecoderSPEEX_16 :
#endif
#ifdef NETEQ_GSMFR_CODEC
case kDecoderGSMFR :
#endif
#ifdef NETEQ_AMR_CODEC
case kDecoderAMR :
#endif
#ifdef NETEQ_AMRWB_CODEC
case kDecoderAMRWB :
#endif
{
/* If we end up here, the inserted codec is supported => Do nothing */
break;
}
default:
{
/* If we get to this point, the inserted codec is not supported */
return CODEC_DB_UNSUPPORTED_CODEC;
}
}
/* Check to see if payload type is taken */
if (WebRtcNetEQ_DbGetCodec(inst, payloadType) > 0)
{
return CODEC_DB_PAYLOAD_TAKEN;
}
/* Special case for CNG codecs */
if (codec == kDecoderCNG)
{
/* check if this is first CNG codec to be registered */
if (WebRtcNetEQ_DbGetPayload(inst, codec) == CODEC_DB_NOT_EXIST2)
{
/* no other CNG codec found */
insertCNGcodec = 1;
}
/* find the appropriate insert position in CNG payload vector */
switch (codec_fs)
{
#ifdef NETEQ_WIDEBAND
case 16000:
CNGpos = 1;
break;
#endif
#ifdef NETEQ_32KHZ_WIDEBAND
case 32000:
CNGpos = 2;
break;
#endif
#ifdef NETEQ_48KHZ_WIDEBAND
case 48000:
CNGpos = 3;
break;
#endif
default: /* 8000 Hz case */
CNGpos = 0;
/*
* The 8 kHz CNG payload type is the one associated with the regular codec DB
* should override any other setting.
* Overwrite if this isn't the first CNG
*/
overwriteCNGcodec = !insertCNGcodec;
break;
}
/* insert CNG payload type */
inst->CNGpayloadType[CNGpos] = payloadType;
}
if ((codec != kDecoderCNG) || (insertCNGcodec == 1) || (overwriteCNGcodec == 1))
{
/* Check if we have reached the maximum numbers of simultaneous codecs */
if (inst->nrOfCodecs == NUM_CODECS) return CODEC_DB_FULL;
/* Check that codec has not already been initialized to DB =>
remove it and reinitialize according to new spec */
if ((inst->position[codec] != -1) && (overwriteCNGcodec != 1))
{ /* if registering multiple CNG codecs, don't remove, just overwrite */
WebRtcNetEQ_DbRemove(inst, codec);
}
if (overwriteCNGcodec == 1)
{
temp = inst->position[codec];
}
else
{
temp = inst->nrOfCodecs; /* Store this codecs position */
inst->position[codec] = temp;
inst->nrOfCodecs++;
}
inst->payloadType[temp] = payloadType;
/* Copy to database */
inst->codec_state[temp] = codec_state;
inst->funcDecode[temp] = funcDecode;
inst->funcDecodeRCU[temp] = funcDecodeRCU;
inst->funcAddLatePkt[temp] = funcAddLatePkt;
inst->funcDecodeInit[temp] = funcDecodeInit;
inst->funcDecodePLC[temp] = funcDecodePLC;
inst->funcGetMDinfo[temp] = funcGetMDinfo;
inst->funcGetPitch[temp] = funcGetPitch;
inst->funcUpdBWEst[temp] = funcUpdBWEst;
inst->funcGetErrorCode[temp] = funcGetErrorCode;
inst->codec_fs[temp] = codec_fs;
}
return 0;
}
/*
* Removes a codec from the database.
*/
int WebRtcNetEQ_DbRemove(CodecDbInst_t *inst, enum WebRtcNetEQDecoder codec)
{
int i;
int pos = -1;
#ifndef NETEQ_RED_CODEC
if (codec == kDecoderRED)
{
return CODEC_DB_UNSUPPORTED_CODEC;
}
#endif
if (((int) codec <= (int) kDecoderReservedStart) || ((int) codec
>= (int) kDecoderReservedEnd))
{
return CODEC_DB_UNSUPPORTED_CODEC;
}
pos = inst->position[codec];
if (pos == -1)
{
return CODEC_DB_NOT_EXIST4;
}
else
{
/* Remove this codec */
inst->position[codec] = -1;
for (i = pos; i < (inst->nrOfCodecs - 1); i++)
{
inst->payloadType[i] = inst->payloadType[i + 1];
inst->codec_state[i] = inst->codec_state[i + 1];
inst->funcDecode[i] = inst->funcDecode[i + 1];
inst->funcDecodeRCU[i] = inst->funcDecodeRCU[i + 1];
inst->funcAddLatePkt[i] = inst->funcAddLatePkt[i + 1];
inst->funcDecodeInit[i] = inst->funcDecodeInit[i + 1];
inst->funcDecodePLC[i] = inst->funcDecodePLC[i + 1];
inst->funcGetMDinfo[i] = inst->funcGetMDinfo[i + 1];
inst->funcGetPitch[i] = inst->funcGetPitch[i + 1];
inst->funcUpdBWEst[i] = inst->funcUpdBWEst[i + 1];
inst->funcGetErrorCode[i] = inst->funcGetErrorCode[i + 1];
inst->codec_fs[i] = inst->codec_fs[i + 1];
}
inst->payloadType[i] = -1;
inst->codec_state[i] = NULL;
inst->funcDecode[i] = NULL;
inst->funcDecodeRCU[i] = NULL;
inst->funcAddLatePkt[i] = NULL;
inst->funcDecodeInit[i] = NULL;
inst->funcDecodePLC[i] = NULL;
inst->funcGetMDinfo[i] = NULL;
inst->funcGetPitch[i] = NULL;
inst->funcUpdBWEst[i] = NULL;
inst->funcGetErrorCode[i] = NULL;
inst->codec_fs[i] = 0;
/* Move down all the codecs above this one */
for (i = 0; i < NUM_TOTAL_CODECS; i++)
{
if (inst->position[i] >= pos)
{
inst->position[i] = inst->position[i] - 1;
}
}
inst->nrOfCodecs--;
if (codec == kDecoderCNG)
{
/* also remove all registered CNG payload types */
for (i = 0; i < NUM_CNG_CODECS; i++)
{
inst->CNGpayloadType[i] = -1;
}
}
}
return 0;
}
/*
* Get the decoder function pointers for a codec.
*/
int WebRtcNetEQ_DbGetPtrs(CodecDbInst_t *inst, enum WebRtcNetEQDecoder codec,
CodecFuncInst_t *ptr_inst)
{
int pos = inst->position[codec];
if ((codec <= kDecoderReservedStart) || (codec >= kDecoderReservedEnd) || (codec
> NUM_TOTAL_CODECS))
{
/* ERROR */
pos = -1;
}
if (pos >= 0)
{
ptr_inst->codec_state = inst->codec_state[pos];
ptr_inst->funcAddLatePkt = inst->funcAddLatePkt[pos];
ptr_inst->funcDecode = inst->funcDecode[pos];
ptr_inst->funcDecodeRCU = inst->funcDecodeRCU[pos];
ptr_inst->funcDecodeInit = inst->funcDecodeInit[pos];
ptr_inst->funcDecodePLC = inst->funcDecodePLC[pos];
ptr_inst->funcGetMDinfo = inst->funcGetMDinfo[pos];
ptr_inst->funcUpdBWEst = inst->funcUpdBWEst[pos];
ptr_inst->funcGetErrorCode = inst->funcGetErrorCode[pos];
ptr_inst->codec_fs = inst->codec_fs[pos];
return 0;
}
else
{
WebRtcSpl_MemSetW16((WebRtc_Word16*) ptr_inst, 0,
sizeof(CodecFuncInst_t) / sizeof(WebRtc_Word16));
return CODEC_DB_NOT_EXIST1;
}
}
/*
* Returns payload number given a codec identifier.
*/
int WebRtcNetEQ_DbGetPayload(CodecDbInst_t *inst, enum WebRtcNetEQDecoder codecID)
{
if (inst->position[codecID] == -1)
return CODEC_DB_NOT_EXIST2;
else
return (inst->payloadType[inst->position[codecID]]);
}
/*
* Returns codec identifier given a payload number.
* Returns -1 if the payload type does not exist.
*/
int WebRtcNetEQ_DbGetCodec(CodecDbInst_t *inst, int payloadType)
{
int i, pos;
for (i = 0; i < NUM_TOTAL_CODECS; i++)
{
pos = inst->position[i];
if (pos != -1)
{
if (inst->payloadType[pos] == payloadType) return i;
}
}
/* did not find payload type */
/* check if it's a CNG codec */
if (WebRtcNetEQ_DbIsCNGPayload(inst, payloadType))
{
return kDecoderCNG;
}
/* found no match */
return CODEC_DB_NOT_EXIST3;
}
/*
* Extracts the Payload Split information of the codec with the specified payloadType.
*/
int WebRtcNetEQ_DbGetSplitInfo(SplitInfo_t *inst, enum WebRtcNetEQDecoder codecID,
int codedsize)
{
switch (codecID)
{
#ifdef NETEQ_ISAC_CODEC
case kDecoderISAC:
#endif
#ifdef NETEQ_ISAC_SWB_CODEC
case kDecoderISACswb:
#endif
#ifdef NETEQ_ARBITRARY_CODEC
case kDecoderArbitrary:
#endif
#ifdef NETEQ_AMR_CODEC
case kDecoderAMR:
#endif
#ifdef NETEQ_AMRWB_CODEC
case kDecoderAMRWB:
#endif
#ifdef NETEQ_G726_CODEC
/* Treat G726 as non-splittable to simplify the implementation */
case kDecoderG726_16:
case kDecoderG726_24:
case kDecoderG726_32:
case kDecoderG726_40:
#endif
#ifdef NETEQ_SPEEX_CODEC
case kDecoderSPEEX_8:
case kDecoderSPEEX_16:
#endif
#ifdef NETEQ_G729_1_CODEC
case kDecoderG729_1:
#endif
{
/* These codecs' payloads are not splittable */
inst->deltaBytes = NO_SPLIT;
return 0;
}
/*
* Sample based coders are a special case.
* In this case, deltaTime signals the number of bytes per timestamp unit times 2
* in log2 domain.
*/
#if (defined NETEQ_G711_CODEC)
case kDecoderPCMu:
case kDecoderPCMa:
{
inst->deltaBytes = -12;
inst->deltaTime = 1;
return 0;
}
#endif
#if (defined NETEQ_G722_CODEC)
case kDecoderG722:
{
inst->deltaBytes = -14;
inst->deltaTime = 0;
return 0;
}
#endif
#if (defined NETEQ_PCM16B_CODEC)
case kDecoderPCM16B:
{
inst->deltaBytes = -12;
inst->deltaTime = 2;
return 0;
}
#endif
#if ((defined NETEQ_PCM16B_CODEC)&&(defined NETEQ_WIDEBAND))
case kDecoderPCM16Bwb:
{
inst->deltaBytes = -14;
inst->deltaTime = 2;
return 0;
}
#endif
#if ((defined NETEQ_PCM16B_CODEC)&&(defined NETEQ_32KHZ_WIDEBAND))
case kDecoderPCM16Bswb32kHz:
{
inst->deltaBytes = -18;
inst->deltaTime = 2;
return 0;
}
#endif
#if ((defined NETEQ_PCM16B_CODEC)&&(defined NETEQ_48KHZ_WIDEBAND))
case kDecoderPCM16Bswb48kHz:
{
inst->deltaBytes = -22;
inst->deltaTime = 2;
return 0;
}
#endif
/* Splittable payloads */
#ifdef NETEQ_G722_1_CODEC
case kDecoderG722_1_16:
{
inst->deltaBytes = 40;
inst->deltaTime = 320;
return 0;
}
case kDecoderG722_1_24:
{
inst->deltaBytes = 60;
inst->deltaTime = 320;
return 0;
}
case kDecoderG722_1_32:
{
inst->deltaBytes = 80;
inst->deltaTime = 320;
return 0;
}
#endif
#ifdef NETEQ_G722_1C_CODEC
case kDecoderG722_1C_24:
{
inst->deltaBytes = 60;
inst->deltaTime = 640;
return 0;
}
case kDecoderG722_1C_32:
{
inst->deltaBytes = 80;
inst->deltaTime = 640;
return 0;
}
case kDecoderG722_1C_48:
{
inst->deltaBytes = 120;
inst->deltaTime = 640;
return 0;
}
#endif
#ifdef NETEQ_G729_CODEC
case kDecoderG729:
{
inst->deltaBytes = 10;
inst->deltaTime = 80;
return 0;
}
#endif
#ifdef NETEQ_ILBC_CODEC
case kDecoderILBC:
{
/* Check for splitting of iLBC packets.
* If payload size is a multiple of 50 bytes it should be split into 30ms frames.
* If payload size is a multiple of 38 bytes it should be split into 20ms frames.
* Least common multiplier between 38 and 50 is 950, so the payload size must be less than
* 950 bytes in order to resolve the frames unambiguously.
* Currently max 12 frames in one bundle.
*/
switch (codedsize)
{
case 50:
case 100:
case 150:
case 200:
case 250:
case 300:
case 350:
case 400:
case 450:
case 500:
case 550:
case 600:
{
inst->deltaBytes = 50;
inst->deltaTime = 240;
break;
}
case 38:
case 76:
case 114:
case 152:
case 190:
case 228:
case 266:
case 304:
case 342:
case 380:
case 418:
case 456:
{
inst->deltaBytes = 38;
inst->deltaTime = 160;
break;
}
default:
{
return AMBIGUOUS_ILBC_FRAME_SIZE; /* Something not supported... */
}
}
return 0;
}
#endif
#ifdef NETEQ_GSMFR_CODEC
case kDecoderGSMFR:
{
inst->deltaBytes = 33;
inst->deltaTime = 160;
return 0;
}
#endif
default:
{ /*Unknown codec */
inst->deltaBytes = NO_SPLIT;
return CODEC_DB_UNKNOWN_CODEC;
}
} /* end of switch */
}
/*
* Returns 1 if codec is multiple description, 0 otherwise.
* NOTE: This function is a stub, since there currently are no MD codecs.
*/
int WebRtcNetEQ_DbIsMDCodec(enum WebRtcNetEQDecoder codecID)
{
if (0) /* Add test for MD codecs here */
return 1;
else
return 0;
}
/*
* Returns 1 if payload type is registered as a CNG codec, 0 otherwise
*/
int WebRtcNetEQ_DbIsCNGPayload(CodecDbInst_t *inst, int payloadType)
{
#ifdef NETEQ_CNG_CODEC
int i;
for(i=0; i<NUM_CNG_CODECS; i++)
{
if( (inst->CNGpayloadType[i] != -1) && (inst->CNGpayloadType[i] == payloadType) )
{
return 1;
}
}
#endif
return 0;
}
/*
* Return the sample rate for the codec with the given payload type, 0 if error
*/
WebRtc_UWord16 WebRtcNetEQ_DbGetSampleRate(CodecDbInst_t *inst, int payloadType)
{
int i;
CodecFuncInst_t codecInst;
/* Sanity */
if (inst == NULL)
{
/* return 0 Hz */
return 0;
}
/* Check among CNG payloads */
for (i = 0; i < NUM_CNG_CODECS; i++)
{
if ((inst->CNGpayloadType[i] != -1) && (inst->CNGpayloadType[i] == payloadType))
{
switch (i)
{
case 1:
return 16000;
case 2:
return 32000;
case 3:
return 48000;
default:
return 8000;
}
}
}
/* Not a CNG payload, check the other payloads */
i = WebRtcNetEQ_DbGetCodec(inst, payloadType);
if (i >= 0)
{
if (WebRtcNetEQ_DbGetPtrs(inst, (enum WebRtcNetEQDecoder) i, &codecInst) != 0)
{
/* Unexpected error, return 0 Hz */
return 0;
}
return codecInst.codec_fs;
}
/* If we end up here, we got an error, return 0 Hz */
return 0;
}