avcodec/aacsbr: Assert that bs_num_env is positive

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago · 2e13a45b1a
parent 79a98294da
commit 2e13a45b1a
1 changed files with 1 additions and 0 deletions
--- 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,