[FFmpeg-devel] [PATCH] Encrypted SMPTE DC MXF - additional UL needed to unpack EKLV packet

[Tomas Härdin]

mån 2022-10-03 klockan 11:47 +0000 skrev Richard Ayres:
> Thanks, Pierre-Anthony. I've updated the patch to remove the
> unnecessary UL and it's now using mxf_match_uid() to detect the EKLV
> packet.
> 
> Signed-off-by: Richard Ayres <richard.ayres at bydeluxe.com>
> ---
>  libavformat/mxfdec.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
> index badd2be224..b1ab90f25f 100644
> --- a/libavformat/mxfdec.c
> +++ b/libavformat/mxfdec.c
> @@ -3737,7 +3737,7 @@ static int mxf_read_header(AVFormatContext *s)
> 
>          PRINT_KEY(s, "read header", klv.key);
>          av_log(s, AV_LOG_TRACE, "size %"PRIu64" offset
> %#"PRIx64"\n", klv.length, klv.offset);
> -        if (IS_KLV_KEY(klv.key, mxf_encrypted_triplet_key) ||
> +        if (mxf_match_uid(klv.key, mxf_encrypted_triplet_key,

Why do we have IS_KLV_KEY at all? I feel it is only appropriate in
cases where we have to deal with less-than-standard files, or if we
explicitly have to differentiate between different versions of relevant
specs.

Patch looks OK

/Tomas