From 3802833bc1f79775a1547c5e427fed6e92b77e53 Mon Sep 17 00:00:00 2001 From: Luca Barbato Date: Wed, 10 Jul 2013 19:00:15 +0200 Subject: [PATCH] dca: Respect the current limits in the downmixing capabilities Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org --- libavcodec/dcadec.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavcodec/dcadec.c b/libavcodec/dcadec.c index de24e4e62b..9b00d30b74 100644 --- a/libavcodec/dcadec.c +++ b/libavcodec/dcadec.c @@ -807,6 +807,12 @@ static int dca_subframe_header(DCAContext *s, int base_channel, int block_index) "Invalid channel mode %d\n", am); return AVERROR_INVALIDDATA; } + if (s->prim_channels > FF_ARRAY_ELEMS(dca_default_coeffs[0])) { + avpriv_request_sample(s->avctx, "Downmixing %d channels", + s->prim_channels); + return AVERROR_PATCHWELCOME; + } + for (j = base_channel; j < s->prim_channels; j++) { s->downmix_coef[j][0] = dca_default_coeffs[am][j][0]; s->downmix_coef[j][1] = dca_default_coeffs[am][j][1];