On Mon, Dec 23, 2019 at 1:53 AM Limin Wang <lance.lmw...@gmail.com> wrote:
> On Sun, Dec 22, 2019 at 03:26:58PM +0000, Zhong Li wrote:
> > Signed-off-by: Zhong Li <zhongli_...@126.com>
> > ---
> > 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;
>
> don't need change it I think.
>
> >
> > - init_get_bits8(&mask, mask_start, mask_size);
> > + ret = init_get_bits8(&mask, mask_start, mask_size);
> > + if (ret < 0)
> > + return AVERROR_INVALIDDATA;
>
> return ret. That's why use ret.
>
>
But you are not returning ret.
- Andreas
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