[libav-devel] [PATCH 2/2] h264_ps: check validity of parsed chroma location values

Vittorio Giovara vittorio.giovara at gmail.com
Sat Nov 9 15:56:29 CET 2013


On Mon, Nov 4, 2013 at 1:10 PM, Vittorio Giovara
<vittorio.giovara at gmail.com> wrote:
> ---
>  libavcodec/h264_ps.c |    5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c
> index 819b7ff..95e0b9a 100644
> --- a/libavcodec/h264_ps.c
> +++ b/libavcodec/h264_ps.c
> @@ -181,6 +181,11 @@ static inline int decode_vui_parameters(H264Context *h, SPS *sps)
>          chroma_sample_loc_type_top_field    = get_ue_golomb(&h->gb);
>          chroma_sample_loc_type_bottom_field = get_ue_golomb(&h->gb);
>
> +        if (chroma_sample_loc_type_top_field != chroma_sample_loc_type_bottom_field) {
> +            av_log(h->avctx, AV_LOG_WARNING, "Different chroma location for top and bottom fields is not supported.");
> +            if (h->avctx->err_recognition & AV_EF_EXPLODE)
> +                return AVERROR_PATCHWELCOME;
> +        }
>          h->avctx->chroma_sample_location = chroma_sample_loc_type_top_field + 1;
>      }
>
> --
> 1.7.9.5
>

Ping patchset.
Vittorio


More information about the libav-devel mailing list