avcodec/adpcm: pick correct step_index for IMA AMV

Fixes #5538

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2016-05-19 16:40:07 +02:00
parent 699201ac0e
commit 14992421df

View File

@ -1310,8 +1310,8 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void *data,
break;
case AV_CODEC_ID_ADPCM_IMA_AMV:
c->status[0].predictor = sign_extend(bytestream2_get_le16u(&gb), 16);
c->status[0].step_index = bytestream2_get_le16u(&gb);
bytestream2_skipu(&gb, 4);
c->status[0].step_index = bytestream2_get_byteu(&gb);
bytestream2_skipu(&gb, 5);
if (c->status[0].step_index > 88u) {
av_log(avctx, AV_LOG_ERROR, "ERROR: step_index = %i\n",
c->status[0].step_index);