[Ffmpeg-devel-irc] ffmpeg-devel.log.20160521

[burek]

[01:13:12 CEST] <KGB> [13FFV1] 15michaelni pushed 1 new commit to 06master: 02https://git.io/vrgcd
[01:13:12 CEST] <KGB> 13FFV1/06master 1423a953b 15Jérôme Martinez: slice_width and slice_height definition update...
[01:18:39 CEST] <Shiz> lol
[01:19:11 CEST] <Shiz> can someone get rid of that spam above ^
[01:36:04 CEST] <Compn> i think michaelni needs to give me that power on the trac as well
[01:36:10 CEST] <Compn> because i dont have the ability iirc
[02:37:11 CEST] <michaelni> Compn, you have wiki delete powers
[02:37:17 CEST] <michaelni> now that is
[02:38:18 CEST] <michaelni> deleted the page
[02:43:07 CEST] <michaelni> marked as spam and user deleted
[02:47:52 CEST] <Shiz> \o
[04:01:44 CEST] <cone-040> ffmpeg 03foo86 07master:801dbf0269b1: avcodec/dca: simplify 'residual ok' flag tracking
[04:14:31 CEST] <cone-040> ffmpeg 03foo86 07master:64fe1eebddbb: avcodec/dca: use LUT for LBR frequency ranges
[07:43:56 CEST] <slashdevnull> What is the recommended method for implementing the following change? For the PPC port, replace all the functions in libswscale/input.c with versions that use vector arithmetic hardware.
[07:46:03 CEST] <slashdevnull> What I presume is that #ifdef directives in each function cannot be the preferred technique for customizing an entire source file for a particular processor.
[11:48:23 CEST] <durandal_1707> review for aic, please
[14:42:29 CEST] <cone-443> ffmpeg 03ZhouXiaoyong 07master:a3eb5a3cdd5c: avcodec/mips/h264chroma_mmi: Version 2 of the optimizations for loongson mmi
[14:59:18 CEST] <durandal_1707> J_Darnley: why you disagree?
[15:52:01 CEST] <cone-443> ffmpeg 03Paul B Mahol 07master:ccc3f4e7104e: avcodec/sgirledec: simplify, no need to use reget buffer
[16:24:49 CEST] <durandal_1707> why are there reviews if there are no reviewers?
[16:48:59 CEST] <Illya> How do I go about adding another pixel format to FFmpeg? Is it just a case of adding them to the enum, or is it more involved?
[16:49:48 CEST] <Fyr> guys, I encountered strange thing: MKVToolnix cannot edit MKV files created by FFMPEG. after it edited, player crashes when playing the final MKV.
[16:49:49 CEST] <Fyr> is there different standards of MKV file format?
[16:52:19 CEST] <thardin> Illya: you need to add converters for them too
[16:52:45 CEST] <atomnuker> you don't actually
[16:53:27 CEST] <thardin> right, if you only use that format
[16:53:34 CEST] <atomnuker> just an entry in pixdesc.c and endian entries in pixfmt.h
[16:54:37 CEST] <atomnuker> and as long as you add support for that format to whatever encoder/decoder you'll be able to feed in a raw file directly
[17:31:37 CEST] <Illya> atomnuker: you mean I'd have to add support for every encoder/decoder?
[17:32:45 CEST] <Illya> or make the converter
[17:33:37 CEST] <nevcairiel> converters are not required, but formats are pretty useless if nothing can use them :)
[17:35:11 CEST] <nevcairiel> note that for complicated packed raw formats, we have choosen to use decoders instead, because supporting their unpacking would otherwise be rather annoying
[17:36:10 CEST] <cone-443> ffmpeg 03Zhou Xiaoyong 07master:a20646bb247a: avcodec/mips/mpegvideo_mmi: Version 2 of the optimizations for loongson mmi
[17:36:11 CEST] <cone-443> ffmpeg 03Zhou Xiaoyong 07master:4a963ee698c0: avcodec/mips: loongson optimize hpeldsp with mmi v1
[17:36:12 CEST] <cone-443> ffmpeg 03Zhou Xiaoyong 07master:c749be9eb349: avcodec/mips: loongson optimize h264pred with mmi v3
[18:02:20 CEST] <Compn> Illya : its easier if you check a commit that added a previous pixfmt
[18:02:30 CEST] <Compn> but also if its packed or strange it has to be a decoder :P
[18:02:45 CEST] <Compn> what fmt is it ?
[18:04:09 CEST] <JEEB> it doesn't have to be a decoder, but it's just simpler to implement because eff swscale
[18:04:18 CEST] <Illya> ARGB4444, RGBA4444, ABGR4444, BGRA4444, ARGB1555, RGBA5551, ABGR1555, BGRA5551, and ARGB2101010
[18:04:18 CEST] <JEEB> which is a sad state of affairs
[18:16:42 CEST] <cone-443> ffmpeg 03Paul B Mahol 07master:8e069eb525d4: avcodec/aic: add frame threading support
[18:20:41 CEST] <Illya> Compn: do you know of one? been trying to find one for the last 20 minutes
[18:23:23 CEST] <durandal_1707> Illya: adding just input support?
[18:23:42 CEST] <durandal_1707> do you have samples?
[18:23:51 CEST] <Illya> no
[18:24:18 CEST] <durandal_1707> then why add it ?
[18:24:22 CEST] <Illya> I was going to add them for output support, SDL2 takes those formats.
[18:24:35 CEST] <durandal_1707> ah
[18:25:18 CEST] <Illya> So that, in the future, if inputs are needed, then an output is already there. Since I think it'd be silly to leave out some of the possible SDL2 pixel output formats
[18:26:43 CEST] <durandal_1707> improving swscale is not trivial, exp output stuff, so leave that for later IMHO
[18:33:50 CEST] <Illya> durandal_1707: ok. Well if it's difficult then I probably won't be able to do it. So I'll just leave them there, as  you said
[18:39:39 CEST] <jkqxz> Who would ever want to use 4/5-bit video output like that?  I don't think there is any value in it: even if something did create one of those formats (which it won't currently, because the formats are not even present in ffmpeg), the cost of converting it to 8-bit is not significant.
[18:39:54 CEST] <jkqxz> Maybe the 10-bit one there is interesting, but if it also takes some other 10-bit format which is normally supported then it's hard to justify adding it separately.
[18:43:32 CEST] <durandal_1707> yes, adding this would make sense if there is codecs using it, and even then it would not be mandatory
[18:49:07 CEST] <cone-443> ffmpeg 03Michael Niedermayer 07master:e7c5dbb4d117: avfilter/avf_ahistogram: raise minimum acmax to 1
[18:54:37 CEST] <cone-443> ffmpeg 03Paul B Mahol 07master:8c17eea46fea: avcodec: add adpcm MTAF decoder
[18:54:38 CEST] <cone-443> ffmpeg 03Paul B Mahol 07master:4da4bfcdc900: avformat: add MTAF demuxer
[19:14:45 CEST] <pfelt> as i rework my decklink input mode autodetect patch per marton's suggestions, what's the right way to resubmit?  do a (v4)?
[19:22:34 CEST] <Illya> pfelt: If your previous one was v3, and you feel you've done everything you needed to, then I'd assume so. 
[19:23:46 CEST] <cone-443> ffmpeg 03Paul B Mahol 07master:defb960a47f6: avfilter/af_loudnorm: fix crash when ebur128 initialization was not successfull/complete
[21:51:41 CEST] <andrey_utkin> Sorry to disturb the maillists moderators, I want to ask to approve the posting to libav-user by subject "[JOB] CCTV system developer". Not urgent. Thanks in advance.
[00:00:00 CEST] --- Sun May 22 2016