On Mon, Dec 10, 2018 at 12:33:52PM +0100, Michael Niedermayer wrote: > On Mon, Dec 10, 2018 at 02:54:54AM +0100, Carl Eugen Hoyos wrote: > > Hi! > > > > Reading the specification and Wikipedia, it appears to me that FFmpeg > > is writing wrong values as aspect ratio for jfif files. > > I hope somebody can prove me wrong! > > > > This would need a slightly more sophisticated update to the decoder. > > > > Please comment, Carl Eugen > > mjpegenc_common.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > 03077e11ffcc0b2faf5a2be46b0cb2ea224eca57 > > 0001-lavc-mjpegenc_common-Fix-aspect-ratio.patch > > From 9c42114da17c20ef6d81d3989b5521eaefc15819 Mon Sep 17 00:00:00 2001 > > From: Carl Eugen Hoyos <ceffm...@gmail.com> > > Date: Mon, 10 Dec 2018 02:50:39 +0100 > > Subject: [PATCH] lavc/mjpegenc_common: Fix aspect ratio. > > > > Reported-by: Ulf Zibis > > --- > > libavcodec/mjpegenc_common.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > if its correct, this requires a bump to the version of libavcodec so > the decoder can detect if a file is from before or after the change
also there is related code in libavcodec/vaapi_encode_mjpeg.c [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The real ebay dictionary, page 2 "100% positive feedback" - "All either got their money back or didnt complain" "Best seller ever, very honest" - "Seller refunded buyer after failed scam"
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