[Ffmpeg-devel-irc] ffmpeg-devel.log.20140129

burek burek021 at gmail.com
Thu Jan 30 02:05:02 CET 2014

[00:25] <BBB> ubitux: so mt is ... a little complicated, basically libvpx has tile-mt and loopfilter-mt, we have frame-mt
[00:25] <BBB> on files with tiles and no parallelmode, tile-mt is better
[00:25] <BBB> in all other cases, frame-mt is better
[00:26] <BBB> I'd like to add tile-mt at some point in the future
[00:26] <BBB> I don't have exact numbers on "how much better", just very rough approximations
[00:29] <cone-490> ffmpeg.git 03Carl Eugen Hoyos 07master:4151b9953e23: Add elbg Makefile dependency to the cinepak encoder.
[04:32] <cone-350> ffmpeg.git 03Carl Eugen Hoyos 07master:862174ec831d: Move GUID-related objects to riffenc.c and riff.c.
[04:32] <cone-350> ffmpeg.git 03Carl Eugen Hoyos 07master:bf9a8d183ddc: Support writing E-AC3 in wav.
[05:30] <smoak> ive found an hls stream that returns a Set-Cookie header when requesting the AES key and needs this cookie set for subsequent key requests. im looking around https://github.com/FFmpeg/FFmpeg/blob/master/libavformat/hls.c#L413 to figure out how to use the returned cookie. ive been able to read the cookie with av_opt_get(uc->priv_data, "cookies", 0, (uint8_t**)&(key_cookie)), but i dont know how to get it
[05:30] <smoak> back into the URLContext->priv_data
[05:43] <michaelni> smoak, setting it in the AVDictionary that is given to *open/connect should work
[06:04] <cone-350> ffmpeg.git 03Michael Niedermayer 07master:ad61419bbffa: avformat/mpegts: drop stray space
[06:04] <cone-350> ffmpeg.git 03Michael Niedermayer 07master:29986885ef7d: avformat/mpegts: Continue parsing PMTs until at least 2 streams are found or 100kb are reached
[06:04] <smoak> michaelni: hmmm...that doesnt seem to get all the way to the http_connect method though
[06:07] <smoak> i suspect in ffurl_connect, uc->prot->url_open2 is false
[06:07] <smoak> in which case it would use url_open which doesnt take an AVDictionary
[06:11] <smoak> nope thats not the case...hmmm
[06:42] <smoak> i think it might be in here https://github.com/FFmpeg/FFmpeg/blob/master/libavformat/http.c#L137
[06:51] <smoak> it looks like that AVDictionary that is given to open/connect gets put in a HTTPContext->chained_options but the get_cookies method doesnt check that
[08:12] <smoak> ok, i traced this down to the get_cookies method when parsing a cookie with an Expires directive
[08:16] <smoak> for example with a cookie like this lu=Rg3vHJZnehYLjVg7qi3bZjzg; Expires=Tue, 15-Jan-2013 21:47:38 GMT; Path=/; Domain=.example.com; when it gets to the Expires directive, it gets tokened by spaces like so: tok1 = Expires=Tue,; tok2 = 15-Jan-2013; tok3 = 21:47:38; tok4 = GMT such that each of those is considered its own param
[10:00] <cone-4> ffmpeg.git 03Carl Eugen Hoyos 07master:cfe282ec80dc: Remove now unneeded Makefile dependency for the wtv muxer.
[11:43] <xlinkz0> I've got an interesting bug when receiving a rtsp stream
[11:43] <xlinkz0> the stream works fine in vlc but ffmpeg reports a much lower fps
[11:44] <xlinkz0> and in fact when i stream copy with -t 20 the recording stops after a couple of seconds
[11:44] <xlinkz0> but the final video file has 20 seconds duration and a low fps..
[11:45] <xlinkz0> i can give you the stream if anyone is interested..
[11:47] <xlinkz0> i updated to git head and i have the same problem
[11:48] <anshul> why dont you search for similar bug at https://trac.ffmpeg.org/
[11:48] <anshul> I think this bug is already reported you can help people solving this bug
[11:49] <xlinkz0> this is where i search? https://trac.ffmpeg.org/search?q=rtsp+fps&noquickjump=1&ticket=on
[12:45] <anshul> xlink is this #2360: defect: FFmpeg rtp streaming was not synchronous (new) is matching to your problem
[13:30] <xlinkz0> anshul: i have no sound
[13:31] <xlinkz0> the problem is ffmpeg sets the stream ok 90k tbr
[13:31] <xlinkz0> s/ok/on
[17:02] <nevcairiel> hm is the hlsenc muxer good for anything? segment seems much more advanced
[17:15] <cone-4> ffmpeg.git 03Diego Biurrun 07master:54b2ce7418c0: mpeg: Drop unused parameters from ff_draw_horiz_band()
[17:15] <cone-4> ffmpeg.git 03Michael Niedermayer 07master:fbafd64acce4: Merge remote-tracking branch 'qatar/master'
[17:38] <ubitux> https://github.com/ultravideo/kvazaar
[17:38] <bri> ubitux: how's that look? :]
[17:38] <ubitux> no idea
[17:40] <bri> was that recently posted somewhere? i've been seeing the link going around
[17:42] <ubitux> yeah, HN & friends
[17:59] <wm4> ubitux: somehow this thing looks very sane
[19:36] <llogan> ubitux: sorry for the email dupe. i forgot to reply to all.
[19:36] <ubitux> no worry
[20:13] <llogan> trac is down
[00:00] --- Thu Jan 30 2014

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