Module: libav Branch: master Commit: 92dad6687f59a6e599834218626e524eb8a5bdae
Author: Mans Rullgard <[email protected]> Committer: Mans Rullgard <[email protected]> Date: Thu Dec 6 23:51:01 2012 +0000 arm: fix use of uninitialised value in ff_fft_fixed_init_arm() When initialising an FFTContext for a plain FFT, mdct_bits is not set and can contain a garbage value. Since nbits is always valid and for MDCT operation is mdct_bits - 2 checking this instead avoids using an uninitialised value while having the same effect. Signed-off-by: Mans Rullgard <[email protected]> --- libavcodec/arm/fft_fixed_init_arm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/libavcodec/arm/fft_fixed_init_arm.c b/libavcodec/arm/fft_fixed_init_arm.c index 5601ba1..50532f2 100644 --- a/libavcodec/arm/fft_fixed_init_arm.c +++ b/libavcodec/arm/fft_fixed_init_arm.c @@ -36,7 +36,7 @@ av_cold void ff_fft_fixed_init_arm(FFTContext *s) s->fft_calc = ff_fft_fixed_calc_neon; #if CONFIG_MDCT - if (!s->inverse && s->mdct_bits >= 5) { + if (!s->inverse && s->nbits >= 3) { s->mdct_permutation = FF_MDCT_PERM_INTERLEAVE; s->mdct_calc = ff_mdct_fixed_calc_neon; s->mdct_calcw = ff_mdct_fixed_calcw_neon; _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
