diff options
| -rw-r--r-- | libavcodec/iff.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/iff.c b/libavcodec/iff.c index 8a9141af5a..eca795aa66 100644 --- a/libavcodec/iff.c +++ b/libavcodec/iff.c @@ -316,7 +316,12 @@ static av_cold int decode_init(AVCodecContext *avctx) int err; if (avctx->bits_per_coded_sample <= 8) { - int palette_size = avctx->extradata_size - AV_RB16(avctx->extradata); + int palette_size; + + if (avctx->extradata_size >= 2) + palette_size = avctx->extradata_size - AV_RB16(avctx->extradata); + else + palette_size = 0; avctx->pix_fmt = (avctx->bits_per_coded_sample < 8) || (avctx->extradata_size >= 2 && palette_size) ? PIX_FMT_PAL8 : PIX_FMT_GRAY8; } else if (avctx->bits_per_coded_sample <= 32) { |