From b82c1a377a2b11663561189208f57c6c639f8ec6 Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Thu, 15 Sep 2016 17:24:40 +0200 Subject: [PATCH] avcodec/adpcm: clip step for ADPCM MTAF decoder Signed-off-by: Paul B Mahol --- libavcodec/adpcm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c index 06ba83e3c3..cb7f644f66 100644 --- a/libavcodec/adpcm.c +++ b/libavcodec/adpcm.c @@ -909,8 +909,8 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data, case AV_CODEC_ID_ADPCM_MTAF: for (channel = 0; channel < avctx->channels; channel+=2) { bytestream2_skipu(&gb, 4); - c->status[channel ].step = bytestream2_get_le16u(&gb); - c->status[channel + 1].step = bytestream2_get_le16u(&gb); + c->status[channel ].step = bytestream2_get_le16u(&gb) & 0x1f; + c->status[channel + 1].step = bytestream2_get_le16u(&gb) & 0x1f; c->status[channel ].predictor = sign_extend(bytestream2_get_le16u(&gb), 16); bytestream2_skipu(&gb, 2); c->status[channel + 1].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);