[Ffmpeg-devel-irc] ffmpeg-devel.log.20181121

burek burek021 at gmail.com
Thu Nov 22 03:05:04 EET 2018

[00:35:30 CET] <cone-577> ffmpeg 03Peter Ross 07master:7cda7d217cd0: api-h264-slice-test: use av_be2ne16 instead of ntohs
[00:35:31 CET] <cone-577> ffmpeg 03Peter Ross 07master:3fc7b69496fd: fate-api-h264-slice: use the heap for nal buffer
[00:35:32 CET] <cone-577> ffmpeg 03Michael Niedermayer 07master:77bf85515e59: avcodec/truemotion2: Check huffman code max bits
[10:11:58 CET] <j-b> 'morning
[12:00:46 CET] <durandal_1707> thardin: it is not rounding and nothing that put_bits can do, previous code allocated too small number for worst scenario
[12:01:32 CET] <durandal_1707> and it would overwrite exactly 2 bits, causing flush bits to assert
[12:12:40 CET] <kierank> kb fflogger
[13:30:53 CET] <cone-604> ffmpeg 03Peter Ross 07master:1ee4b4006be6: avfilter/graphmonitor: use SIZE_SPECIFIER for size_t type
[13:34:07 CET] <thardin> durandal_1707: k, mostly just a thought
[13:41:53 CET] <cone-604> ffmpeg 03Andrey Semashev 07master:322e53f8aebb: lavf/dashenc: Add DASH segment type auto and make it the default
[13:41:53 CET] <cone-604> ffmpeg 03Andrey Semashev 07master:281a21ed5084: lavf/dashenc: Add support for format-specific file extensions.
[13:41:53 CET] <cone-604> ffmpeg 03Andrey Semashev 07master:d290bb0c5404: lavf/dashenc: Fix AVDictionary leaks in case of various init errors.
[14:52:03 CET] <smbz> Looking at #5023, it seems like the problem is related to ffio_ensure_callback()
[14:52:34 CET] <smbz> Anyone know if ffio_ensure_callback() is supposed to work mid-stream, or just at the beginning (for probing and headers)?
[14:55:53 CET] <smbz> *ffio_ensure_seekback...
[16:00:05 CET] <jamrial> jkqxz: https://people.xiph.org/~tterribe/av1/samples-all/
[16:17:21 CET] <durandal_1707> where i can read about dec3 atom, specifically for mp4/mpv?
[16:24:42 CET] <nevcairiel> durandal_1707: https://www.etsi.org/deliver/etsi_ts/102300_102399/102366/01.03.01_60/ts_102366v010301p.pdf page 202
[16:28:39 CET] <durandal_1707> nevcairiel: thanks
[16:54:17 CET] <durandal_1707> fflogger drinks too much
[16:59:56 CET] <kierank> durandal_1707: learned from you
[17:01:24 CET] <kierank> spamming the channel all the time
[17:01:24 CET] <kierank> now needs to get twitter and troll there
[17:13:36 CET] <durandal_1707> is there any open source tool that parses dec3 correctly?
[17:14:24 CET] <nevcairiel> most of those audio boxes are just pointless and not required for decoding
[17:14:24 CET] <nevcairiel> so maybe not
[17:14:24 CET] <durandal_1707> but stupid quicktime depends on it
[17:54:53 CET] <durandal_1707> does anybody with windows 10 can try to remux one file with ffmpeg to see what windows player reports for audio?
[18:03:07 CET] <jamrial> sure
[18:09:14 CET] <durandal_1707> remux https://cloudstore.zih.tu-dresden.de/index.php/s/PHoOt67flM8jep5 to mp4 with -c copy
[18:29:21 CET] <jamrial> durandal_1707: it detects it as six channels
[18:29:37 CET] <jamrial> but so does ffmpeg when i read the resulting file
[18:30:01 CET] <durandal_1707> 5.1 ? and not 6.0 ?
[18:30:26 CET] <jamrial> ffmpeg says 5.1(side)
[18:30:47 CET] <durandal_1707> what says windows player?
[18:30:51 CET] <jamrial> the windows "Movies & TV" app just says 6 channel
[18:30:57 CET] <jamrial> with the mkv it says 8 channel
[18:31:13 CET] <nevcairiel> dont expect too much detail from typical players
[18:31:49 CET] <durandal_1707> eh, mov muxer needs to be fixed to correctly interpret channel maps from eac3
[18:33:11 CET] <durandal_1707> and demuxer needs fixing too
[18:33:11 CET] <nevcairiel> hm some msvc builds a re also broken right now
[18:33:11 CET] <nevcairiel> avsscanf.c(486): error C2059: syntax error: 'bad suffix on number'
[18:34:45 CET] <nevcairiel> hex float syntax is apparently not supported everywhere
[18:34:55 CET] <durandal_1707> its 0x1p
[18:35:02 CET] <jamrial> mediainfo says this eac3 audio stream has atmos
[18:35:44 CET] <durandal_1707> mediainfo uses eac3 bitstream to get it
[18:42:17 CET] <durandal_1707> nevcairiel: so how to fix? just multiply it?
[19:06:51 CET] <durandal_1707> using pow(2, DBL_MANT_DIG) fixed it
[19:15:13 CET] <durandal_1707> who is movenc expert to review patch?
[19:20:49 CET] <kierank> durandal_1707: derek
[20:18:27 CET] <BBB> for those interested, first performance numbers of dav1d (av1 decoder) on j-b's website: http://www.jbkempf.com/blog/post/2018/dav1d-toward-the-first-release
[20:32:44 CET] <durandal_1707> hmm i'm looking at extra stream from truehd that is supposed to be atmos, and i see no typical start of atmos header 
[20:58:38 CET] <atomnuker> finding new av1 samples on youtube is perilous
[20:58:59 CET] <atomnuker> only new videos have them and only those popular enough
[20:59:52 CET] <atomnuker> so you need to go into trending and start fishing
[20:59:52 CET] <atomnuker> one look at that page is enough to make you vomit though
[20:59:54 CET] <atomnuker> is that what normal people watch? its worse than what's on television
[21:03:08 CET] <BBB> I think some john oliver videos have av1, that's not too bad
[21:03:08 CET] <BBB> or maybe that was just the beta...
[21:07:42 CET] <Easyfab> atomnuker here a list ( not sure it's updated  recently ) with some AV1 videos mostly videos clips  https://docs.google.com/spreadsheets/d/110F_knHDvfVwRR86LlGgMWf-DO27Oa0e1GE6A4bfRHA/edit#gid=0 
[21:11:42 CET] <jamrial> i've found videos about fancy japanese cooking get av1 streams
[21:30:11 CET] <durandal_1707> does anybody with windows 10 can confirm it can play atmos with all objects within truehd samples?
[21:30:41 CET] <akravchenko188> jkqxz: hi. it is reminder. Did you have a chance to review amf patches from November 2? it would be really great to have them applied to continue development.
[22:12:38 CET] <durandal_1707> JEEB: ok, there is atmos media foundation dll, but what it uses to understand truehd?
[22:13:12 CET] <nevcairiel> i think it only does atmos in EAC3
[22:19:28 CET] <durandal_1707> me too, and it actually only bitstreams
[22:19:57 CET] <durandal_1707> i do not have EAC3+ATMOS samples at all
[22:20:08 CET] <nevcairiel> i think netflix streams that
[22:20:26 CET] <durandal_1707> for free?
[22:20:32 CET] <nevcairiel> of course not
[22:31:05 CET] <durandal_1707> so no atmos for you, its black box
[22:32:08 CET] <kierank> durandal_1707: there is tranformers
[22:35:25 CET] <kierank> The sample
[22:35:28 CET] <kierank> Eac3 I dunno
[23:34:24 CET] <durandal_1707> only dolby media decoder have it, and that cost $$$$
[23:37:46 CET] <jamrial> <@durandal_1707> i do not have EAC3+ATMOS samples at all <--- the one you posted above doesn't?
[00:00:00 CET] --- Thu Nov 22 2018

More information about the Ffmpeg-devel-irc mailing list