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| author | Anton Khirnov <anton@khirnov.net> | 2013-04-09 15:25:20 +0200 |
|---|---|---|
| committer | Anton Khirnov <anton@khirnov.net> | 2013-04-17 10:56:11 +0200 |
| commit | 34f87a58532ed652a6e0283c1d044ee5df0aef0b (patch) | |
| tree | e884ac0593cc3c6889c723a8bcc201ec2a3e3b8e /libavcodec/qdm2.c | |
| parent | ecff5acb5a738fcb4f9e206a12070dac4bf259b3 (diff) | |
qdm2: check that the FFT size is a power of 2
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
Diffstat (limited to 'libavcodec/qdm2.c')
| -rw-r--r-- | libavcodec/qdm2.c | 4 |
1 files changed, 4 insertions, 0 deletions
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); |