Chromium Code Reviews| Index: webrtc/modules/audio_coding/codecs/ilbc/refiner.c |
| diff --git a/webrtc/modules/audio_coding/codecs/ilbc/refiner.c b/webrtc/modules/audio_coding/codecs/ilbc/refiner.c |
| index 86df81c460fb5c32a35d6948a274b026ec4960d3..08ea3063f840b0b7c535d60d6a2353be9fff03cb 100644 |
| --- a/webrtc/modules/audio_coding/codecs/ilbc/refiner.c |
| +++ b/webrtc/modules/audio_coding/codecs/ilbc/refiner.c |
| @@ -30,18 +30,17 @@ |
| *---------------------------------------------------------------*/ |
| void WebRtcIlbcfix_Refiner( |
| - int16_t *updStartPos, /* (o) updated start point (Q-2) */ |
| + size_t *updStartPos, /* (o) updated start point (Q-2) */ |
| int16_t *idata, /* (i) original data buffer */ |
| - int16_t idatal, /* (i) dimension of idata */ |
| - int16_t centerStartPos, /* (i) beginning center segment */ |
| - int16_t estSegPos, /* (i) estimated beginning other segment (Q-2) */ |
| + size_t idatal, /* (i) dimension of idata */ |
| + size_t centerStartPos, /* (i) beginning center segment */ |
| + size_t estSegPos, /* (i) estimated beginning other segment (Q-2) */ |
| int16_t *surround, /* (i/o) The contribution from this sequence |
| summed with earlier contributions */ |
| int16_t gain /* (i) Gain to use for this sequence */ |
| ){ |
| - int16_t estSegPosRounded,searchSegStartPos,searchSegEndPos; |
| - size_t corrdim,i; |
| - int16_t tloc,tloc2,st,en,fraction; |
| + size_t estSegPosRounded, searchSegStartPos, searchSegEndPos, corrdim; |
| + size_t tloc, tloc2, i; |
| int32_t maxtemp, scalefact; |
| int16_t *filtStatePtr, *polyPtr; |
| @@ -56,96 +55,86 @@ void WebRtcIlbcfix_Refiner( |
| estSegPosRounded = (estSegPos - 2) >> 2; |
| - searchSegStartPos=estSegPosRounded-ENH_SLOP; |
| + searchSegStartPos = |
| + (estSegPosRounded < ENH_SLOP) ? 0 : (estSegPosRounded - ENH_SLOP); |
| - if (searchSegStartPos<0) { |
| - searchSegStartPos=0; |
| + searchSegEndPos = estSegPosRounded + ENH_SLOP; |
| + if ((searchSegEndPos + ENH_BLOCKL) >= idatal) { |
| + searchSegEndPos = idatal - ENH_BLOCKL - 1; |
| } |
| - searchSegEndPos=estSegPosRounded+ENH_SLOP; |
| - if(searchSegEndPos+ENH_BLOCKL >= idatal) { |
| - searchSegEndPos=idatal-ENH_BLOCKL-1; |
| - } |
| - corrdim=(size_t)(searchSegEndPos-searchSegStartPos+1); |
| + corrdim = searchSegEndPos + 1 - searchSegStartPos; |
| /* compute upsampled correlation and find |
| location of max */ |
| - WebRtcIlbcfix_MyCorr(corrVecTemp,idata+searchSegStartPos, |
| - corrdim+ENH_BLOCKL-1,idata+centerStartPos,ENH_BLOCKL); |
| + WebRtcIlbcfix_MyCorr(corrVecTemp, idata + searchSegStartPos, |
| + corrdim + ENH_BLOCKL - 1, idata + centerStartPos, |
| + ENH_BLOCKL); |
| /* Calculate the rescaling factor for the correlation in order to |
| put the correlation in a int16_t vector instead */ |
| - maxtemp=WebRtcSpl_MaxAbsValueW32(corrVecTemp, corrdim); |
| + maxtemp = WebRtcSpl_MaxAbsValueW32(corrVecTemp, corrdim); |
| - scalefact=WebRtcSpl_GetSizeInBits(maxtemp)-15; |
| + scalefact = WebRtcSpl_GetSizeInBits(maxtemp) - 15; |
| - if (scalefact>0) { |
| - for (i=0;i<corrdim;i++) { |
| + if (scalefact > 0) { |
| + for (i = 0; i < corrdim; i++) { |
| corrVec[i] = (int16_t)(corrVecTemp[i] >> scalefact); |
| } |
| } else { |
| - for (i=0;i<corrdim;i++) { |
| - corrVec[i]=(int16_t)corrVecTemp[i]; |
| + for (i = 0; i < corrdim; i++) { |
| + corrVec[i] = (int16_t)corrVecTemp[i]; |
| } |
| } |
| /* In order to guarantee that all values are initialized */ |
| - for (i=corrdim;i<ENH_CORRDIM;i++) { |
| - corrVec[i]=0; |
| + for (i = corrdim; i < ENH_CORRDIM; i++) { |
| + corrVec[i] = 0; |
| } |
| /* Upsample the correlation */ |
| - WebRtcIlbcfix_EnhUpsample(corrVecUps,corrVec); |
| + WebRtcIlbcfix_EnhUpsample(corrVecUps, corrVec); |
| /* Find maximum */ |
| - tloc=WebRtcSpl_MaxIndexW32(corrVecUps, ENH_UPS0 * corrdim); |
| + tloc = WebRtcSpl_MaxIndexW32(corrVecUps, ENH_UPS0 * corrdim); |
| /* make vector can be upsampled without ever running outside |
| bounds */ |
| - *updStartPos = (int16_t)(searchSegStartPos * 4) + tloc + 4; |
| + *updStartPos = searchSegStartPos * 4 + tloc + 4; |
| tloc2 = (tloc + 3) >> 2; |
| - st=searchSegStartPos+tloc2-ENH_FL0; |
| - |
| /* initialize the vector to be filtered, stuff with zeros |
| when data is outside idata buffer */ |
| - if(st<0){ |
| - WebRtcSpl_MemSetW16(vect, 0, (size_t)(-st)); |
| - WEBRTC_SPL_MEMCPY_W16(&vect[-st], idata, (ENH_VECTL+st)); |
| - } |
| - else{ |
| - en=st+ENH_VECTL; |
| - |
| - if(en>idatal){ |
| - WEBRTC_SPL_MEMCPY_W16(vect, &idata[st], |
| - (ENH_VECTL-(en-idatal))); |
| - WebRtcSpl_MemSetW16(&vect[ENH_VECTL-(en-idatal)], 0, |
| - (size_t)(en-idatal)); |
| - } |
| - else { |
| + if (ENH_FL0 > (searchSegStartPos + tloc2)) { |
| + size_t st = ENH_FL0 - searchSegStartPos - tloc2; |
|
hlundin-webrtc
2015/08/28 06:48:18
const
|
| + WebRtcSpl_MemSetW16(vect, 0, st); |
| + WEBRTC_SPL_MEMCPY_W16(&vect[st], idata, ENH_VECTL - st); |
| + } else { |
| + size_t st = searchSegStartPos + tloc2 - ENH_FL0; |
|
hlundin-webrtc
2015/08/28 06:48:18
const
|
| + if ((st + ENH_VECTL) > idatal) { |
| + size_t en = st + ENH_VECTL - idatal; |
|
hlundin-webrtc
2015/08/28 06:48:18
const
|
| + WEBRTC_SPL_MEMCPY_W16(vect, &idata[st], ENH_VECTL - en); |
| + WebRtcSpl_MemSetW16(&vect[ENH_VECTL - en], 0, en); |
| + } else { |
| WEBRTC_SPL_MEMCPY_W16(vect, &idata[st], ENH_VECTL); |
| } |
| } |
| - /* Calculate which of the 4 fractions to use */ |
| - fraction = (int16_t)(tloc2 * ENH_UPS0) - tloc; |
| /* compute the segment (this is actually a convolution) */ |
| - |
| filtStatePtr = filt + 6; |
| - polyPtr = (int16_t*)WebRtcIlbcfix_kEnhPolyPhaser[fraction]; |
| - for (i=0;i<7;i++) { |
| + polyPtr = (int16_t*)WebRtcIlbcfix_kEnhPolyPhaser[tloc2 * ENH_UPS0 - tloc]; |
| + for (i = 0; i < 7; i++) { |
| *filtStatePtr-- = *polyPtr++; |
| } |
| - WebRtcSpl_FilterMAFastQ12( |
| - &vect[6], vect, filt, |
| - ENH_FLO_MULT2_PLUS1, ENH_BLOCKL); |
| + WebRtcSpl_FilterMAFastQ12(&vect[6], vect, filt, ENH_FLO_MULT2_PLUS1, |
| + ENH_BLOCKL); |
| - /* Add the contribution from this vector (scaled with gain) to the total surround vector */ |
| - WebRtcSpl_AddAffineVectorToVector( |
| - surround, vect, gain, |
| - (int32_t)32768, 16, ENH_BLOCKL); |
| + /* Add the contribution from this vector (scaled with gain) to the total |
| + surround vector */ |
| + WebRtcSpl_AddAffineVectorToVector(surround, vect, gain, 32768, 16, |
| + ENH_BLOCKL); |
| return; |
| } |