diff options
Diffstat (limited to 'libAACdec/src/usacdec_acelp.cpp')
| -rw-r--r-- | libAACdec/src/usacdec_acelp.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/libAACdec/src/usacdec_acelp.cpp b/libAACdec/src/usacdec_acelp.cpp index ec4437f..af1f488 100644 --- a/libAACdec/src/usacdec_acelp.cpp +++ b/libAACdec/src/usacdec_acelp.cpp @@ -1116,7 +1116,8 @@ void CLpd_AcelpPrepareInternalMem(const FIXP_DBL *synth, UCHAR last_lpd_mode, const FIXP_LPC *A_new, const INT A_new_exp, const FIXP_LPC *A_old, const INT A_old_exp, CAcelpStaticMem *acelp_mem, - INT coreCoderFrameLength, UCHAR lpd_mode) { + INT coreCoderFrameLength, INT clearOldExc, + UCHAR lpd_mode) { int l_div = coreCoderFrameLength / NB_DIV; /* length of one ACELP/TCX20 frame */ int l_div_partial; @@ -1154,6 +1155,13 @@ void CLpd_AcelpPrepareInternalMem(const FIXP_DBL *synth, UCHAR last_lpd_mode, &syn[PIT_MAX_MAX + L_INTERPOL - M_LP_FILTER_ORDER], M_LP_FILTER_ORDER * sizeof(FIXP_DBL)); + if (clearOldExc) { + FDKmemclear(old_exc_mem, (PIT_MAX_MAX + L_INTERPOL) * sizeof(FIXP_DBL)); + C_ALLOC_SCRATCH_END(synth_buf, FIXP_DBL, + PIT_MAX_MAX + L_INTERPOL + M_LP_FILTER_ORDER); + return; + } + /* update past [PIT_MAX_MAX+L_INTERPOL] samples of exc memory */ if (last_lpd_mode == 1) { /* last frame was TCX20 */ if (last_last_lpd_mode == 0) { /* ACELP -> TCX20 -> ACELP transition */ @@ -1170,7 +1178,6 @@ void CLpd_AcelpPrepareInternalMem(const FIXP_DBL *synth, UCHAR last_lpd_mode, int exc_A_new_length = (coreCoderFrameLength / 2 > PIT_MAX_MAX + L_INTERPOL) ? PIT_MAX_MAX + L_INTERPOL : coreCoderFrameLength / 2; - int exc_A_old_length = PIT_MAX_MAX + L_INTERPOL - exc_A_new_length; E_UTIL_residu(A_old, A_old_exp, syn, old_exc_mem, exc_A_old_length); E_UTIL_residu(A_new, A_new_exp, &syn[exc_A_old_length], |