[Ffmpeg-devel-irc] ffmpeg-devel.log.20180607

[burek]

[00:14:41 CEST] <cone-482> ffmpeg 03Ruiling Song 07master:e4006a474f68: lavu: add calling convention for OpenCL callback.
[01:40:04 CEST] <January> Compn: ping
[02:41:45 CEST] <Compn> January : pong
[02:42:15 CEST] <Compn> January : are you a contributor or committer ? i forgot...
[02:42:34 CEST] <January> Compn: I have git access
[02:42:37 CEST] <Compn> ok
[02:42:43 CEST] <Compn> is your nick registered ?
[02:42:47 CEST] <January> yes
[02:42:50 CEST] <Compn> k
[02:43:05 CEST] <Compn> there you go
[02:43:06 CEST] <January> also can you ping an op in #freenode to get my cloak updated, they didnt want to do it without your approval
[02:43:09 CEST] <January> for some odd reason
[02:43:14 CEST] <Compn> ergh
[02:44:15 CEST] <January> Compn: thanks :^)
[02:45:39 CEST] <Compn> sure sure
[02:45:58 CEST] <Compn> but its June...
[02:45:59 CEST] <Compn> :P
[02:46:46 CEST] <January> I should register a nick for every month and just change it month instead of only every 2 years
[13:08:04 CEST] <jdarnley> Why can't I find pmovzx in Agner's instruction tables for Skylake?  Am I blind?
[13:08:56 CEST] <jdarnley> Yes I am because it is right there, James!
[13:09:06 CEST] <nevcairiel> complaining helps
[13:18:42 CEST] <jdarnley> Unknown latency for y,m but y,x is 3.  2 uops like the x,m form.
[13:19:15 CEST] <jdarnley> No wonder it seems to be no faster
[13:37:30 CEST] <cone-728> ffmpeg 03Gyan Doshi 07master:47a818323ba0: doc/general.texi: clarify FDK-AAC licensing & usability
[13:43:34 CEST] <cone-728> ffmpeg 03Jun Zhao 07master:3bab7b70da97: lavu/hwcontext_opecl: fix the build warning
[13:43:34 CEST] <cone-728> ffmpeg 03Jun Zhao 07master:3161df5b0c2d: lavfi/opencl: remove redundant header.
[13:43:36 CEST] <cone-728> ffmpeg 03Jun Zhao 07master:3769aafb7c9a: configure: fix check for opencl
[17:03:14 CEST] <Gramner> jdarnley: instructions with memory args are generally identical to doing a memory load to a temporary register and then executing the instruction, just with a more compact encoding and no need for the temporary register. the exception is things like broadcast instructions that can in most cases be done without any extra execution unit usage compared to a regular memory load
[17:06:47 CEST] <Gramner> for SIMD that is. for GPR instructions zero- and sign-extension is also free compared to normal memory loads
[17:57:33 CEST] <jdarnley> Shit!  shufps requires alignment of its memory arg.
[17:59:25 CEST] <jamrial> all non vex instructions do, save for those where unaligned access is explicit, like movdqu
[19:54:10 CEST] <cone-927> ffmpeg 03Michael Niedermayer 07master:d91a0b503d7a: avcodec/shorten: Sanity check nmeans
[19:54:11 CEST] <cone-927> ffmpeg 03Michael Niedermayer 07master:a711efe922b2: avcodec/shorten: Fix a negative left shift in shorten_decode_frame()
[19:54:12 CEST] <cone-927> ffmpeg 03Michael Niedermayer 07master:606c71482314: avcodec/shorten: Fix undefined shift in fix_bitshift()
[19:54:13 CEST] <cone-927> ffmpeg 03Michael Niedermayer 07master:f2abd36b3863: avcodec/shorten: Fix multiple integer overflows
[22:36:50 CEST] <jdarnley> > The code to fix it is very simple
[22:37:00 CEST] <jdarnley> yet no patch is provided
[22:47:03 CEST] <JEEB> of course
[00:00:00 CEST] --- Fri Jun  8 2018