From 34f87a58532ed652a6e0283c1d044ee5df0aef0b Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Tue, 9 Apr 2013 15:25:20 +0200 Subject: qdm2: check that the FFT size is a power of 2 Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC:libav-stable@libav.org --- libavcodec/qdm2.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'libavcodec/qdm2.c') diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c index 91ef524ad6..1e0811c861 100644 --- a/libavcodec/qdm2.c +++ b/libavcodec/qdm2.c @@ -1835,6 +1835,10 @@ static av_cold int qdm2_decode_init(AVCodecContext *avctx) av_log(avctx, AV_LOG_ERROR, "Unknown FFT order (%d), contact the developers!\n", s->fft_order); return -1; } + if (s->fft_size != (1 << (s->fft_order - 1))) { + av_log(avctx, AV_LOG_ERROR, "FFT size %d not power of 2.\n", s->fft_size); + return AVERROR_INVALIDDATA; + } ff_rdft_init(&s->rdft_ctx, s->fft_order, IDFT_C2R); ff_mpadsp_init(&s->mpadsp); -- cgit v1.2.3