[Ffmpeg-devel-irc] ffmpeg-devel.log.20140910

burek burek021 at gmail.com
Thu Sep 11 02:05:03 CEST 2014


[00:05] <cone-854> ffmpeg.git 03Pascal Massimino 07master:649b7a99463d: av_filter/x86/idet: use HADDD where appropriate
[00:06] <Daemon404> i luckily dont care about systemd at all :D
[00:15] Action: rcombs glances at launchd
[00:16] <J_Darnley> How can you say that?  Isn't it the one true init system?
[00:16] <wm4> it should be ported to windows!
[00:17] <J_Darnley> Yeah!  I can'r believe Windows has so mnay places to start things.
[00:18] <Daemon404> i dont particularily care what init system my linux box uses
[00:18] Action: J_Darnley is appalled at his typing today.
[00:18] <Daemon404> at least, it has not affected me in any practical way yet
[00:18] <Daemon404> as a user.
[00:22] <rcombs> seems like Windows's sucks and all the *nux ones work plenty well enough
[00:22] <iive> wm4: i thought it is ported _from_ windows!
[00:22] <wm4> I think it's most similar with launchd, so osx
[02:38] <cone-854> ffmpeg.git 03Michael Niedermayer 07master:1b5ccae0f204: avformat/mp3dec: Improve seeking frame sync code
[09:56] <rcombs> are we supposed to support targeting OS X 10.6 when building on a later OS X version?
[09:56] <rcombs> (because right now, we don't if indevs are enabled, because the AVFoundation indev is enabled by default and there's no option to disable it)
[09:58] <ubitux> no option to disable the AVFoundation indev? huh ?
[09:58] <ubitux> --disable-indev=avfoundation ?
[09:59] <rcombs> oh, derp, forgot that option existed
[09:59] <rcombs> danke
[11:58] <cone-557> ffmpeg.git 03Michael Niedermayer 07master:3294fc8c474b: avformat/concatdec: fix "warning: explicitly assigning a variable of type int to itself"
[14:45] <thardin> does anyone in here know the state of very low bitrate video codecs? say 20 kbps and under
[14:48] <kierank> hevc at like 5fps i guess
[14:48] <kierank> but at that bitrate you're looking at high overhead for headers etc
[14:49] <thardin> yeah, I noticed that
[14:50] <thardin> ran some tests with x264, and just the NAL header is 4%
[14:50] <thardin> is x265 useful right now?
[14:53] <Daemon404> thardin, at such low bitrates, it could possibly be
[14:53] <Daemon404> testing encouraged
[14:54] <thardin> I'll try to remember when getting home
[14:55] <thardin> should probably hack both to not output the version string, since that skews results too much
[14:56] <kierank> yeah the version string causes vbv problems on the first frame in zerolatency as well
[14:56] <thardin> no foreman_qcif.y4m that string ends up eating another 3%
[14:56] <thardin> on
[14:56] <thardin> found some interesting papers on this problem too
[15:18] <cone-182> ffmpeg.git 03Michael Niedermayer 07master:8b7a39d7ea4b: avcodec/adpcmenc: Use FF_ALLOC_ARRAY_OR_GOTO()
[15:19] <cone-182> ffmpeg.git 03Michael Niedermayer 07master:7fe59eeaaf22: avcodec/ac3enc_template: Use FF_ALLOC_ARRAY_OR_GOTO()
[15:19] <cone-182> ffmpeg.git 03Michael Niedermayer 07master:c4a0c64f1450: avcodec/aacenc: Use FF_ALLOCZ_ARRAY_OR_GOTO()
[15:20] <michaelni> thardin, might be fun to try snow, i dont remember how it looked at xy kbps but it looked better than mpeg4-asp
[15:20] <michaelni> at low bitrate that is
[15:25] <Compn> x264 had some ultra low bitrate stuff, if you have low motion
[15:25] <Compn> snow was nice too :)
[15:25] <Compn> http://radar.weather.gov/Conus/Loop/centgrtlakes_loop.gif
[15:26] <Compn> its gonna rain
[15:33] <J_Darnley> Oh god, does this increment fbp before after setting the j'th value?  "fbp++[j] = whatever"
[15:33] <J_Darnley> *before or after
[15:36] <ubitux> after
[15:39] <J_Darnley> thanks
[15:56] <thardin> michaelni: not a bad idea. one paper I found used an H.264/DWT hybrid
[18:05] <mateo`> ou ça ?
[18:05] <mateo`> wooops worry :(
[20:53] <wm4> no Libav 11 yet...
[20:56] <nevcairiel> didnt they talk about releasing it all weekend
[20:56] <nevcairiel> guess talk is easy, doing not so much? :)
[20:57] <cone-182> ffmpeg.git 03Michael Niedermayer 07master:6f48c60956aa: avcodec/twinvq: Use FF_ALLOC_ARRAY_OR_GOTO()
[20:57] <cone-182> ffmpeg.git 03Michael Niedermayer 07master:743d489c9a26: avcodec/mpegvideo: Use FF_ALLOCZ_ARRAY_OR_GOTO()
[21:57] <iive> nevcairiel: "we are not paid to do it"
[22:54] <cone-182> ffmpeg.git 03Michael Niedermayer 07master:7258b5eb65d8: avcodec/dnxhdenc: Use FF_ALLOCZ_ARRAY_OR_GOTO()
[22:54] <cone-182> ffmpeg.git 03Michael Niedermayer 07master:3e56ae67d300: avcodec/h264: Use FF_ALLOCZ_ARRAY_OR_GOTO()
[00:00] --- Thu Sep 11 2014


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