[Ffmpeg-devel-irc] ffmpeg.log.20140223

burek burek021 at gmail.com
Mon Feb 24 02:05:01 CET 2014


[01:26] <Jan-> is there a windows executable available anywhere that represents "current git head"
[01:29] <klaxa> Jan-: probably not, but i would think these are pretty recent: http://ffmpeg.zeranoe.com/builds/
[01:31] <Jan-> So why is someone on the ffmpeg mailing list  telling people to "test current git head"
[01:32] <Jan-> I mean, we're not coders
[02:17] <Hello71> http://ffmpeg.zeranoe.com/builds/:
[02:17] <Hello71> Latest Zeranoe FFmpeg Build Version: git-44b22bb (2014-02-22)
[02:18] <Hello71> https://github.com/FFmpeg/FFmpeg/commits/master
[02:18] <Hello71> ctrl+f 44b22bb
[02:18] <Hello71> ~1 day old
[07:12] <Snowleaksange> ok got audio/video decode and resampling working
[07:12] <Snowleaksange> now for encoding
[07:26] <kms_> what happens if I could combine the video and audio tracks of different lengths?
[08:50] <Snowleaksange> lets try and take the api changes down a notch this decade
[08:50] <Snowleaksange> sometimes precedent is better than innovation or naming consistency
[12:26] <totaam_> hi, I'm trying to get the "h265" (aka HEVC) decoder to show up in "./ffmpeg -decoders" but not having much luck:
[12:26] <totaam_> http://pastebin.com/TiQN5P2U
[12:27] <totaam_> Here's a patch to allow ffmpeg trunk to build against x265 trunk BTW: http://pastebin.com/cwhBkQiX
[12:27] <totaam_> not that I care about encoding side, just to get ffmpeg to build with everything enabled
[12:28] <totaam_> the only thing that looks suspicious is "WARNING: library configuration mismatch" - any clue?
[12:40] -:#ffmpeg- [freenode-info] channel flooding and no channel staff around to help? Please check with freenode support: http://freenode.net/faq.shtml#gettinghelp
[13:32] <Snowleaksange> what container & codecs should a live stream for <embed video> to work in browsers?
[13:34] <Snowleaksange> er <video>
[13:43] <JEEB> Snowleaksange, welcome to HTML5 video and streaming
[13:43] <JEEB> it doesn't exist
[13:43] <JEEB> except for Android 3.x+ and iOS version something, which have support for Apple's HLS thingamajig which is a horrible hack
[13:45] <Snowleaksange> hmm ok.  my browsers dont support flash anymore
[13:47] <Snowleaksange> ok im installing flash player?
[13:47] <Snowleaksange> famous last words
[13:48] <JEEB> with flash you basically only get rtmpe, which I guess is a bit less of a hack than HLS?
[13:48] <JEEB> flv over their protocol
[13:50] <Snowleaksange> i used to have webcam + opencv fx streamed via flv and it worked in browsers fine
[13:50] <Snowleaksange> but now the world has changed
[13:50] <Snowleaksange> this time i cant even blame ffmpeg
[14:02] <china> Snowleaksange: you could always get livestreamer which has support for a number of streaming services if you're wanting to watch https://github.com/chrippa/livestreamer
[17:46] <qote> hi
[17:46] <qote> i have a problem processing a file to h264 in kdenlive
[17:46] <qote> it keeps saying:  start time is not set in estimate_timings_from_pts
[17:46] <qote> running arch linux
[19:09] <JodaZ_> °.° wow, libav diverged quite a bit from ffmpeg
[19:48] <znf> So, would anyone have any idea what format/container etc. I should stream for a html5 live video feed?
[20:11] <JodaZ_> znf, h264/aac in mp4 with fallback of a flash player
[20:12] <JodaZ_> znf, or, if your users are 90% techies, webm ofc
[20:15] <znf> JodaZ_, so what transport should I use?
[20:15] <znf> for live streaming?
[20:15] <JodaZ_> oh wait, live?
[20:15] <JodaZ_> sorry
[20:16] <JodaZ_> the answer is HLS then
[20:16] <znf> yeah
[20:17] <JodaZ_> most streaming pages are using HLS or DASH nowadays
[20:17] <JodaZ_> hmm, wait, html5 can't do either °.°
[20:18] <JodaZ_> come to think of it, i don't think anyone is using html5 for live streaming
[20:19] <JodaZ_> well, DASH is html5 in theory, but the support isn't ready i think
[20:22] <rcombs> JodaZ_: at Plex, we use HLS and DASH for that in <video>
[20:22] <JodaZ_> rcombs, does that work for anything besides apple devices?
[20:22] <rcombs> and ffmpeg also can generate WebM files that Chrome likes; not sure on Firefox
[20:22] <rcombs> DASH works in Chrome, at least
[20:23] <rcombs> (WebM live-streaming, that is)
[20:24] <JodaZ_> rcombs, question, can plex HLS be used as a caching source, or are segments different when requested out of order?
[20:25] <rcombs> I'm not sure what you mean there
[21:11] <znf> Unable to find a suitable output format for 'out.m3u8'
[21:11] <znf> well, crap
[21:11] <znf> now what?
[21:13] <sacarasc> I didn't know that ffmpeg could make playlists.
[21:14] <znf> sacarasc, the docs seems to say so
[21:14] <znf> Do I need a streaming server if I want to push to flash? :-/
[21:15] <znf> I have a webcam that produces a rtsp stream, and I have no idea how to easily publish it on the web :-/
[21:21] <rcombs> re-read the hls or segment muxer docs
[21:22] <rcombs> the output arg shouldn't be out.m3u8; it should be an image2-style output that indicates the path to the actual segments
[21:22] <rcombs> the playlist is specified in a separate arg
[21:27] <znf> rcombs, well the docs just say ffmpeg -i in.file out.m3u8
[21:33] <rcombs> hmm, so it seems, for the HLS muxer (I usually use the segment one)
[21:33] <rcombs> try adding `-f hls`?
[22:21] <llogan> znf: are you using an ancient build?
[00:00] --- Mon Feb 24 2014


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