Quoting Andreas Rheinhardt (2020-05-30 18:05:06)
> Signed-off-by: Andreas Rheinhardt
> ---
> libavcodec/vp9_superframe_bsf.c | 5 +
> 1 file changed, 5 insertions(+)
>
> diff --git a/libavcodec/vp9_superframe_bsf.c b/libavcodec/vp9_superframe_bsf.c
> index 57681e29e4..34a47aa69e 100644
> --- a/libavcodec/vp9_superframe_bsf.c
> +++ b/libavcodec/vp9_superframe_bsf.c
> @@ -108,6 +108,11 @@ static int vp9_superframe_filter(AVBSFContext *ctx,
> AVPacket *pkt)
> if (res < 0)
> return res;
>
> +if (pkt->size <= 0) {
> +res = AVERROR_INVALIDDATA;
> +goto done;
> +}
> +
> marker = pkt->data[pkt->size - 1];
> if ((marker & 0xe0) == 0xc0) {
> int nbytes = 1 + ((marker >> 3) & 0x3);
> --
> 2.20.1
I wonder if it wouldn't be better to add an internal capability for
"bsf supports zero-sized packets" and have the internal code reject
packets instead.
--
Anton Khirnov
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