-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 21/05/15 11:47, Michael Niedermayer wrote: > On Thu, May 21, 2015 at 08:20:48AM +0100, tim nicholson wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> On 19/05/15 16:50, Michael Niedermayer wrote: >>> On Tue, May 19, 2015 at 03:35:42PM +0100, tim nicholson wrote: >>>> -----BEGIN PGP SIGNED MESSAGE----- >>>> Hash: SHA1 >>>> >>>> On 19/05/15 14:11, Michael Niedermayer wrote: >>>>> On Tue, May 19, 2015 at 12:07:24PM +0100, tim nicholson wrote: >>>>>> On 19/05/15 01:33, Michael Niedermayer wrote: >>>>>>> [...] >>>>> the avchroma locations are explained by the ascii art above the en um >> : >>>>> * X X 3 4 X X are luma samples, >>>>> * 1 2 1-6 are possible chroma positions >>>>> * X X 5 6 X 0 is undefined/unknown position >>>>> >>>>> and from this the english directions are exactly where the chroma >>>>> samples are located, this also matches how H264 defines chroma >>>>> locations. >>>> >>>> I cannot get the ascii art to make sense to me at all, it just does n' >> t >>>> click. I do no see how you can represent "co-siting" in ascii art w it >> h a >>>> single character and the "3" position certainly doesn't do it for m e! >>> >>> ascii art improved >>> does it make sense now ? >>> >> >> Better, but I still cannot see the difference between say 3 and 4, or 1 >> and 2. > > Ive tried to improve the text and ASCII even more > does it make sense now ? >
Still don't understand why two colour sample sites per pixel. Please don't waste any more time fiddling with this, I expect it will suddenly click in my brain when I least expect it. Oh hang on I think it just did, you superimpose the second art on top of the first so the 3 is on top of the X but the 4 is between them etc etc.... In which case I think I agree with your mappings, sorry its taken so lon g ;( > [...] > > > > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel > - -- Tim. Key Fingerprint 38CF DB09 3ED0 F607 8B67 6CED 0C0B FC44 8B0B FC83 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQEcBAEBAgAGBQJVXeXUAAoJEAwL/ESLC/yD/XwH+wfNWVEQ877APxfpO4fGmkc9 4WDvc8E4tzwVda6FKw+LuSLFHAQcHnuaZLcwXRfLeXrQpgsZUEqagJ/A4A8eDsFp GI0BZLiHROOnHBAZ5yYNd3q6Y8lJump4LK/XgjOIURlnk5wEJ6nkM3sjqoP4JoDU EkEDf1ZYAeddRnu/hfZp7o8wNqhXoreh8FBj2Sznli4jDr680WfffwavNfJ6WSF7 QRfCZ9wNSw7JrVs02BsT90VDLXh45+2DeFfQqf2XC7apYZ/1gRY97hLMu+M52NQZ mgXTSR6gTiBU7EPwR7Mq5MS1x4Za8d2uPJy+OIdGOp4wUllrCMrgEnA+Nc47Hb0= =wsE6 -----END PGP SIGNATURE----- _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
