On Sun, Jan 18, 2015 at 01:28:36PM +0000, Kieran Kunhya wrote: > On 18 January 2015 at 12:22, Michael Niedermayer <michae...@gmx.at> wrote: > > On Sun, Jan 18, 2015 at 02:52:59AM +0100, Hendrik Leppkes wrote: > >> On Sun, Jan 18, 2015 at 1:02 AM, Nicolas George <geo...@nsup.org> wrote: > >> > >> > L'octidi 28 nivôse, an CCXXIII, Kieran Kunhya a écrit : > >> > > Oops I misunderstood, you mean the software must comply with the users > >> > wishes. > >> > > >> > Yes. > >> > > >> > > Anyway my argument is that BT601 should be the default for the these > >> > > resolutions. > >> > > >> > If you want, but that must happen immediately when the contents enters > >> > into > >> > FFmpeg's data structure, not at a random point in the processing chain. > >> > > >> > > >> Without arguing for or against BT.601 behaviour... > >> > >> nvenc should behave the same as libx264, or any other video encoder, if > >> this patch makes it do that, then it should be applied. > > > > Yes, and AFAICS an earlier mail from philip indicates this is the case > > " > > Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 720x576 > > [SAR 64:45 DAR 16:9], 25 tbr, 25 tbn, 25 tbc > > > > With libx264, I get the same SAR and DAR out. > > > > With nvenc, I get: > > > > sample_aspect_ratio=16:11 > > display_aspect_ratio=20:11 > > " > > > > In above example the user asks for a NON BT.601 format 720x576 at > > SAR 64:45 and a DAR related to 720x576 NOT 702 or 704x576 of 16:9 > > yet nvenc gives her something else > > Here's the point where I give up and start my own fork where things > are done properly.
please elaborate about where you disagree I think theres a misunderstanding between people on what some of the aspect ratios mean and what they refer to [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Let us carefully observe those good qualities wherein our enemies excel us and endeavor to excel them, by avoiding what is faulty, and imitating what is excellent in them. -- Plutarch
signature.asc
Description: Digital signature
_______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
