From 714596bcbf990ec3e82f8fde110954755cc1bf6e Mon Sep 17 00:00:00 2001 From: Lynne Date: Fri, 7 Jun 2024 04:17:13 +0200 Subject: [PATCH] aacdec_usac: zero out alpha values for the current frame --- libavcodec/aac/aacdec_usac.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/aac/aacdec_usac.c b/libavcodec/aac/aacdec_usac.c index fbec6e26bd..aa89b83182 100644 --- a/libavcodec/aac/aacdec_usac.c +++ b/libavcodec/aac/aacdec_usac.c @@ -691,6 +691,10 @@ static int decode_usac_stereo_cplx(AACDecContext *ac, AACUsacStereo *us, if (!indep_flag) delta_code_time = get_bits1(gb); + /* Alpha values must be zeroed out if pred_used is 0. */ + memset(us->alpha_q_re, 0, sizeof(us->alpha_q_re)); + memset(us->alpha_q_im, 0, sizeof(us->alpha_q_im)); + /* TODO: shouldn't be needed */ for (int g = 0; g < num_window_groups; g++) { for (int sfb = 0; sfb < cpe->max_sfb_ste; sfb += SFB_PER_PRED_BAND) {