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- From a50eecf65b5ce5d4f03768c5c2cb4b492d2badad Mon Sep 17 00:00:00 2001
- From: Martin Storsjo <martin@martin.st>
- Date: Fri, 4 May 2018 12:46:44 +0300
- Subject: [PATCH] Fix overflows in accumulation, fixing crashes
-
- This fixes github issue #83.
- ---
- libSBRenc/src/tran_det.cpp | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
- diff --git a/libSBRenc/src/tran_det.cpp b/libSBRenc/src/tran_det.cpp
- index 0e35ec3..51d6efe 100644
- --- a/libSBRenc/src/tran_det.cpp
- +++ b/libSBRenc/src/tran_det.cpp
- @@ -256,12 +256,12 @@ static FIXP_DBL addLowbandEnergies(FIXP_DBL **Energies,
- /* freqBandTable[LORES] has MAX_FREQ_COEFFS/2 +1 coeefs max. */
- for (ts=tran_offdiv2; ts<YBufferWriteOffset; ts++) {
- for (k = 0; k < freqBandTable[0]; k++) {
- - accu1 += Energies[ts][k] >> 6;
- + accu1 = fAddSaturate(accu1, Energies[ts][k] >> 6);
- }
- }
- for (; ts<tran_offdiv2+(slots>>nrgSzShift); ts++) {
- for (k = 0; k < freqBandTable[0]; k++) {
- - accu2 += Energies[ts][k] >> 9;
- + accu2 = fAddSaturate(accu2, Energies[ts][k] >> 9);
- }
- }
-
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