Hi, On Sun, Feb 19, 2017 at 12:23 PM, Mark Thompson <sw at jkqxz.net> wrote: > diff --git a/libavcodec/webp.c b/libavcodec/webp.c > [..] > + avctx->get_format = webp_get_format; Docs say: "decoding: Set by user, if not set the native format will be chosen." So I don't think decoders are supposed to set this. Ronald