On 05/10/2024 20:58, Sean McGovern wrote:
--- libavcodec/aacenc_pred.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/libavcodec/aacenc_pred.c b/libavcodec/aacenc_pred.c index a486c44d42..a6dfaa25fb 100644 --- a/libavcodec/aacenc_pred.c +++ b/libavcodec/aacenc_pred.c @@ -153,9 +153,7 @@ void ff_aac_adjust_common_pred(AACEncContext *s, ChannelElement *cpe) int start, w, w2, g, i, count = 0; SingleChannelElement *sce0 = &cpe->ch[0]; SingleChannelElement *sce1 = &cpe->ch[1]; - const int pmax0 = FFMIN(sce0->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]); - const int pmax1 = FFMIN(sce1->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]); - const int pmax = FFMIN(pmax0, pmax1); + const int pmax = FFMIN(sce1->ics.max_sfb, ff_aac_pred_sfb_max[s->samplerate_index]);
if (!cpe->common_window || sce0->ics.window_sequence[0] == EIGHT_SHORT_SEQUENCE || @@ -164,7 +162,7 @@ void ff_aac_adjust_common_pred(AACEncContext *s, ChannelElement *cpe)
for (w = 0; w < sce0->ics.num_windows; w += sce0->ics.group_len[w]) { start = 0; - for (g = 0; g < sce0->ics.num_swb; g++) { + for (g = 0; g < pmax; g++) { int sfb = w*16+g; int sum = sce0->ics.prediction_used[sfb] + sce1->ics.prediction_used[sfb]; float ener0 = 0.0f, ener1 = 0.0f, ener01 = 0.0f;
I'm not sure I see the UB here?