Signed-off-by: Zhong Li <[email protected]>
---
libavcodec/midivid.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/libavcodec/midivid.c b/libavcodec/midivid.c
index 38465c5..3dac3f1 100644
--- a/libavcodec/midivid.c
+++ b/libavcodec/midivid.c
@@ -63,17 +63,20 @@ static int decode_mvdv(MidiVidContext *s, AVCodecContext
*avctx, AVFrame *frame)
if (intra_flag) {
nb_blocks = (avctx->width / 2) * (avctx->height / 2);
} else {
- int skip_linesize;
+ int ret, skip_linesize;
nb_blocks = bytestream2_get_le32(gb);
skip_linesize = avctx->width >> 1;
mask_start = gb->buffer_start + bytestream2_tell(gb);
mask_size = (avctx->width >> 5) * (avctx->height >> 2);
- if (bytestream2_get_bytes_left(gb) < mask_size)
+ ret = bytestream2_get_bytes_left(gb);
+ if (ret < mask_size)
return AVERROR_INVALIDDATA;
- init_get_bits8(&mask, mask_start, mask_size);
+ ret = init_get_bits8(&mask, mask_start, mask_size);
+ if (ret < 0)
+ return AVERROR_INVALIDDATA;
bytestream2_skip(gb, mask_size);
skip = s->skip;
--
1.8.3.1
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