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avcodec/aacsbr: Assert that bs_num_env is positive 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2e13a45b1a)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-07-01 02:08:25 +02:00 committed by Michael Niedermayer
parent e740506d31
commit bbcf6f5c62
1 changed files with 1 additions and 0 deletions
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libavcodec/aacsbr.c
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@ -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,