From michael at niedermayer.cc Sun Dec 13 15:39:11 2020 From: michael at niedermayer.cc (Michael Niedermayer) Date: Sun, 13 Dec 2020 14:39:11 +0100 Subject: [NUT-devel] [PATCH] Add st_sd_displaymatrix for storing the stream display matrix In-Reply-To: References: Message-ID: <20201213133911.GC879923@pb2> On Fri, Nov 20, 2020 at 12:28:59PM +0100, Matthias Neugebauer wrote: > See FFmpeg patch: https://patchwork.ffmpeg.org/project/ffmpeg/patch/F7848CEE-46C1-4CAF-9191-A7BABF5D61B4 at mailbox.org/ > --- > docs/nut.txt | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/docs/nut.txt b/docs/nut.txt > index 3641c01..ea49eba 100644 > --- a/docs/nut.txt > +++ b/docs/nut.txt > @@ -1,5 +1,5 @@ > ================================== > -NUT Open Container Format 20201104 > +NUT Open Container Format 20201120 > ================================== > > This doesnt apply as the whitespaces seem to have been mangled by your MUA or some other part of the mail pipeline > @@ -1045,6 +1045,12 @@ info packet types > framerates in the stream). Note, this value is just a guess! > For example, if the time base is 1/90000 and all frames have either > approximately 3600 or 1800 timer ticks, then r_frame_rate will be 50/1. > + "st_sd_displaymatrix" > + Display matrix of the stream. > + This stores the 3x3 display matrix of the stream as nine unsigned > + integers seperated by colons. The display matrix is a side data of a > + video stream and necessary for displaying the stream correctly, e.g. > + rotating it. ok but this needs to be a bit more precisse is a 1 2 3 4 5 6 7 8 9 matrix stored as 1 2 3 4 5 6 7 8 9 or 1 4 7 2 5 8 3 6 9 or something else also this needs a clear definition what a display matrix is or a link / reference to some other specification which clearly defines what a display matrix is Without this there could be interoperability issues if people interpret this in different ways iam CC-ing ffmpeg-devel as i suspect there are more interrested people there to comment than on nut-devel and the subject also touches the ffmpeg implementation thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB I have never wished to cater to the crowd; for what I know they do not approve, and what they approve I do not know. -- Epicurus -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 195 bytes Desc: not available URL: