[vlc-devel] [PATCH 2/2] dav1d: parse the extra data to get the output chroma

[Francois Cartegnie]

Le 10/09/2020 à 11:17, Steve Lhomme a écrit :

> +    av1_OBU_sequence_header_t *sequence_hdr = NULL;
> +    if (dec->fmt_in.i_extra > 4)
> +    {
> +        // in ISOBMFF/WebM/Matroska the first 4 bytes are from the AV1CodecConfigurationBox
> +        // and then one or more OBU
> +        sequence_hdr = AV1_OBU_parse_sequence_header(((uint8_t*)dec->fmt_in.p_extra) + 4,
> +                                                     dec->fmt_in.i_extra - 4);
That needs AV1_OBUGetType() check

The only guarantee is to be the seq header when present.

-- 
Francois Cartegnie
VideoLAN - VLC Developer