diff options
Diffstat (limited to 'media/libstagefright/codecs/aacenc/src/pre_echo_control.c')
| -rw-r--r-- | media/libstagefright/codecs/aacenc/src/pre_echo_control.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/media/libstagefright/codecs/aacenc/src/pre_echo_control.c b/media/libstagefright/codecs/aacenc/src/pre_echo_control.c index 1e818a2..1406e11 100644 --- a/media/libstagefright/codecs/aacenc/src/pre_echo_control.c +++ b/media/libstagefright/codecs/aacenc/src/pre_echo_control.c @@ -29,7 +29,7 @@ /***************************************************************************** * -* function name:InitPreEchoControl +* function name:InitPreEchoControl * description: init pre echo control parameter * *****************************************************************************/ @@ -40,13 +40,13 @@ void InitPreEchoControl(Word32 *pbThresholdNm1, Word16 pb; for(pb=0; pb<numPb; pb++) { - pbThresholdNm1[pb] = pbThresholdQuiet[pb]; + pbThresholdNm1[pb] = pbThresholdQuiet[pb]; } } /***************************************************************************** * -* function name:PreEchoControl +* function name:PreEchoControl * description: update shreshold to avoid pre echo * thr(n) = max(rpmin*thrq(n), min(thrq(n), rpelev*thrq1(n))) * @@ -68,22 +68,22 @@ void PreEchoControl(Word32 *pbThresholdNm1, (void)maxAllowedIncreaseFactor; scaling = ((mdctScale - mdctScalenm1) << 1); - + if ( scaling > 0 ) { for(i = 0; i < numPb; i++) { tmpThreshold1 = pbThresholdNm1[i] >> (scaling-1); tmpThreshold2 = L_mpy_ls(pbThreshold[i], minRemainingThresholdFactor); /* copy thresholds to internal memory */ - pbThresholdNm1[i] = pbThreshold[i]; + pbThresholdNm1[i] = pbThreshold[i]; + - if(pbThreshold[i] > tmpThreshold1) { - pbThreshold[i] = tmpThreshold1; + pbThreshold[i] = tmpThreshold1; } - + if(tmpThreshold2 > pbThreshold[i]) { - pbThreshold[i] = tmpThreshold2; + pbThreshold[i] = tmpThreshold2; } } @@ -96,15 +96,15 @@ void PreEchoControl(Word32 *pbThresholdNm1, tmpThreshold2 = L_mpy_ls(pbThreshold[i], minRemainingThresholdFactor); /* copy thresholds to internal memory */ - pbThresholdNm1[i] = pbThreshold[i]; + pbThresholdNm1[i] = pbThreshold[i]; + - if(((pbThreshold[i] >> scaling) > tmpThreshold1)) { pbThreshold[i] = tmpThreshold1 << scaling; } - + if(tmpThreshold2 > pbThreshold[i]) { - pbThreshold[i] = tmpThreshold2; + pbThreshold[i] = tmpThreshold2; } } |