Merge commit 'c571424c7f6276a6374e1784ce2a33d4b6a4292d'

[ffmpeg] / libavcodec / aacsbr.c

diff --git a/libavcodec/aacsbr.c b/libavcodec/aacsbr.c
index ca6dad7c003f8b965dfc77831ef9530a4939ef2b..a39b78de18a6fa4d2b7016d5441974f981ed5740 100644 (file)
--- a/libavcodec/aacsbr.c
+++ b/libavcodec/aacsbr.c
@@ -1726,6 +1726,7 @@ void ff_sbr_apply(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
             sbr->c.sbr_hf_inverse_filter(&sbr->dsp, sbr->alpha0, sbr->alpha1,
                                          (const float (*)[40][2]) sbr->X_low, sbr->k[0]);
             sbr_chirp(sbr, &sbr->data[ch]);
+            av_assert0(sbr->data[ch].bs_num_env > 0);
             sbr_hf_gen(ac, sbr, sbr->X_high,
                        (const float (*)[40][2]) sbr->X_low,
                        (const float (*)[2]) sbr->alpha0,