From 7296ee7af1424ad11afb9ea711f18f2b563c735b Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Thu, 27 Jun 2013 02:50:52 +0200 Subject: [PATCH] qdm2: check and reset dithering index per channel Checking per subband would have the index exceed the dithering noise table size. Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org (cherry picked from commit 744a11c996641888d477a3981d609e79eeb69ea9) Signed-off-by: Luca Barbato Conflicts: libavcodec/qdm2.c --- libavcodec/qdm2.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c index 59bce40c2d..856f9a4c92 100644 --- a/libavcodec/qdm2.c +++ b/libavcodec/qdm2.c @@ -784,8 +784,6 @@ static void synthfilt_build_sb_samples (QDM2Context *q, GetBitContext *gb, int l } for (sb = sb_min; sb < sb_max; sb++) { - FIX_NOISE_IDX(q->noise_idx); - channels = q->nb_channels; if (q->nb_channels <= 1 || sb < 12) @@ -809,6 +807,7 @@ static void synthfilt_build_sb_samples (QDM2Context *q, GetBitContext *gb, int l } for (ch = 0; ch < channels; ch++) { + FIX_NOISE_IDX(q->noise_idx); zero_encoding = (BITS_LEFT(length,gb) >= 1) ? get_bits1(gb) : 0; type34_predictor = 0.0; type34_first = 1;