diff options
Diffstat (limited to 'libAACdec/src/conceal.cpp')
| -rw-r--r-- | libAACdec/src/conceal.cpp | 102 |
1 files changed, 71 insertions, 31 deletions
diff --git a/libAACdec/src/conceal.cpp b/libAACdec/src/conceal.cpp index 733b959..c26051c 100644 --- a/libAACdec/src/conceal.cpp +++ b/libAACdec/src/conceal.cpp @@ -441,7 +441,7 @@ AAC_DECODER_ERROR /* set confort noise level which will be inserted while in state 'muting' */ if (comfNoiseLevel != AACDEC_CONCEAL_PARAM_NOT_SPECIFIED) { - if ( (comfNoiseLevel < 0) + if ( (comfNoiseLevel < -1) || (comfNoiseLevel > 127) ) { return AAC_DEC_SET_PARAM_FAIL; } @@ -1527,8 +1527,13 @@ static void { case ConcealState_Ok: if (!frameOk) { - /* change to state SINGLE-FRAME-LOSS */ - pConcealmentInfo->concealState = ConcealState_Single; + if (pConcealCommonData->numFadeOutFrames > 0) { + /* change to state SINGLE-FRAME-LOSS */ + pConcealmentInfo->concealState = ConcealState_Single; + } else { + /* change to state MUTE */ + pConcealmentInfo->concealState = ConcealState_Mute; + } pConcealmentInfo->cntFadeFrames = 0; pConcealmentInfo->cntValidFrames = 0; } @@ -1561,11 +1566,16 @@ static void case ConcealState_FadeOut: pConcealmentInfo->cntFadeFrames += 1; /* used to address the fade-out factors */ if (pConcealmentInfo->cntValidFrames > pConcealCommonData->numMuteReleaseFrames) { - /* change to state FADE-IN */ - pConcealmentInfo->concealState = ConcealState_FadeIn; - pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, - pConcealmentInfo->cntFadeFrames-1, - 0 /* FadeOut -> FadeIn */); + if (pConcealCommonData->numFadeInFrames > 0) { + /* change to state FADE-IN */ + pConcealmentInfo->concealState = ConcealState_FadeIn; + pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, + pConcealmentInfo->cntFadeFrames-1, + 0 /* FadeOut -> FadeIn */); + } else { + /* change to state OK */ + pConcealmentInfo->concealState = ConcealState_Ok; + } } else { if (pConcealmentInfo->cntFadeFrames >= pConcealCommonData->numFadeOutFrames) { /* change to state MUTE */ @@ -1576,9 +1586,14 @@ static void case ConcealState_Mute: if (pConcealmentInfo->cntValidFrames > pConcealCommonData->numMuteReleaseFrames) { - /* change to state FADE-IN */ - pConcealmentInfo->concealState = ConcealState_FadeIn; - pConcealmentInfo->cntFadeFrames = pConcealCommonData->numFadeInFrames - 1; + if (pConcealCommonData->numFadeInFrames > 0) { + /* change to state FADE-IN */ + pConcealmentInfo->concealState = ConcealState_FadeIn; + pConcealmentInfo->cntFadeFrames = pConcealCommonData->numFadeInFrames - 1; + } else { + /* change to state OK */ + pConcealmentInfo->concealState = ConcealState_Ok; + } } break; @@ -1590,11 +1605,16 @@ static void pConcealmentInfo->concealState = ConcealState_Ok; } } else { - /* change to state FADE-OUT */ - pConcealmentInfo->concealState = ConcealState_FadeOut; - pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, - pConcealmentInfo->cntFadeFrames+1, - 1 /* FadeIn -> FadeOut */); + if (pConcealCommonData->numFadeOutFrames > 0) { + /* change to state FADE-OUT */ + pConcealmentInfo->concealState = ConcealState_FadeOut; + pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, + pConcealmentInfo->cntFadeFrames+1, + 1 /* FadeIn -> FadeOut */); + } else { + /* change to state MUTE */ + pConcealmentInfo->concealState = ConcealState_Mute; + } } break; @@ -1625,8 +1645,13 @@ static void case ConcealState_Ok: if (!(pConcealmentInfo->prevFrameOk[1] || (pConcealmentInfo->prevFrameOk[0] && !pConcealmentInfo->prevFrameOk[1] && frameOk))) { - /* Fade out only if the energy interpolation algorithm can not be applied! */ - pConcealmentInfo->concealState = ConcealState_FadeOut; + if (pConcealCommonData->numFadeOutFrames > 0) { + /* Fade out only if the energy interpolation algorithm can not be applied! */ + pConcealmentInfo->concealState = ConcealState_FadeOut; + } else { + /* change to state MUTE */ + pConcealmentInfo->concealState = ConcealState_Mute; + } pConcealmentInfo->cntFadeFrames = 0; pConcealmentInfo->cntValidFrames = 0; } @@ -1640,11 +1665,16 @@ static void pConcealmentInfo->cntFadeFrames += 1; if (pConcealmentInfo->cntValidFrames > pConcealCommonData->numMuteReleaseFrames) { - /* change to state FADE-IN */ - pConcealmentInfo->concealState = ConcealState_FadeIn; - pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, - pConcealmentInfo->cntFadeFrames-1, - 0 /* FadeOut -> FadeIn */); + if (pConcealCommonData->numFadeInFrames > 0) { + /* change to state FADE-IN */ + pConcealmentInfo->concealState = ConcealState_FadeIn; + pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, + pConcealmentInfo->cntFadeFrames-1, + 0 /* FadeOut -> FadeIn */); + } else { + /* change to state OK */ + pConcealmentInfo->concealState = ConcealState_Ok; + } } else { if (pConcealmentInfo->cntFadeFrames >= pConcealCommonData->numFadeOutFrames) { /* change to state MUTE */ @@ -1655,9 +1685,14 @@ static void case ConcealState_Mute: if (pConcealmentInfo->cntValidFrames > pConcealCommonData->numMuteReleaseFrames) { - /* change to state FADE-IN */ - pConcealmentInfo->concealState = ConcealState_FadeIn; - pConcealmentInfo->cntFadeFrames = pConcealCommonData->numFadeInFrames - 1; + if (pConcealCommonData->numFadeInFrames > 0) { + /* change to state FADE-IN */ + pConcealmentInfo->concealState = ConcealState_FadeIn; + pConcealmentInfo->cntFadeFrames = pConcealCommonData->numFadeInFrames - 1; + } else { + /* change to state OK */ + pConcealmentInfo->concealState = ConcealState_Ok; + } } break; @@ -1670,11 +1705,16 @@ static void pConcealmentInfo->concealState = ConcealState_Ok; } } else { - /* change to state FADE-OUT */ - pConcealmentInfo->concealState = ConcealState_FadeOut; - pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, - pConcealmentInfo->cntFadeFrames+1, - 1 /* FadeIn -> FadeOut */); + if (pConcealCommonData->numFadeOutFrames > 0) { + /* change to state FADE-OUT */ + pConcealmentInfo->concealState = ConcealState_FadeOut; + pConcealmentInfo->cntFadeFrames = findEquiFadeFrame( pConcealCommonData, + pConcealmentInfo->cntFadeFrames+1, + 1 /* FadeIn -> FadeOut */); + } else { + /* change to state MUTE */ + pConcealmentInfo->concealState = ConcealState_Mute; + } } break; } /* End switch(pConcealmentInfo->concealState) */ |