[Ffmpeg-devel-irc] ffmpeg.log.20130718

[burek]

[00:00] <relaxed> Maybe they removed that feature and it's now a default?
[00:01] <LunixA380> Removed?
[00:02] <LunixA380> Hm, wait, I remembered a log, I'll paste it
[00:15] <LunixA380> So : http://pastebin.com/ja5LgFan
[00:17] <LunixA380> I taken the static build from ffmpeg.zeranoe.com, and this uh...the 6 July
[00:18] <LunixA380> ffmpeg-20130709-git-00b1401-win32-static.7z *
[00:19] <LunixA380> line 202, we see  rc_resize_allowed:            0
[00:19] <LunixA380> but I'm unable, for the time being, to change it.
[00:24] <LunixA380> I stay connected ^^
[00:24] <LunixA380> I'll brb
[00:24] <durandal_1707> LunixA380: when was it working?
[00:25] <LunixA380> I never tested it
[00:25] <durandal_1707> its supposed to be changeable from user?
[00:25] <saste> LunixA380, was never a valid option
[00:26] <LunixA380> oO
[00:26] <LunixA380> So the website is lying?
[00:26] <relaxed> If you need it you can encode with vpxenc directly.
[00:26] <LunixA380> Okay.
[00:26] <durandal_1707> this is trivial to add, if you reall need it
[00:27] <relaxed> maybe a -vpx-params option is in order.
[00:28] <saste> LunixA380, what website is lying?
[00:30] <durandal_1707> that page even have failing link to libvpx in ffmpeg
[00:32] <mark4o> yup, looks like http://wiki.webmproject.org/ffmpeg is wrong; maybe check on #webm or #vp8 ?
[00:34] <saste> LunixA380, don't trust third parties wikis
[00:34] <saste> otoh our internal documentation for livpx sucks
[00:41] <superware> I have an RTP/h264 video stream, when I ffplay -f h264 rtp://0.0.0.0:1234 it plays only half picture, the lower area seems corrupted. Do I need to specify more information about the stream?
[00:43] <superware> please see http://pastebin.com/MTxZw0PL
[01:03] <superware> must I play an SDP file in order to play h264 over RTP?
[01:05] <superware> vlad_starkov: hi
[01:20] <superware> I have an RTP/h264 video stream, when I ffplay -f h264 rtp://0.0.0.0:1234 it plays only half picture, the lower area seems corrupted. Do I need to specify more information about the stream? http://pastebin.com/MTxZw0PL
[01:25] <ilove11ven1> superware: check packet loss
[09:15] <LunixA380> Welcome back ffmpeg support channel :)
[09:15] <LunixA380> Nothing to ask for now ^^
[09:16] <relaxed> In soviet #ffmpeg, we welcome you.
[09:17] <LunixA380> soviet #ffmpeg? Is there is regional ffmpeg channels :o?
[09:20] <relaxed> No.
[09:52] <braincracker> h
[09:52] <braincracker> hack your 19" tft monitor CCFL to LED backlight  http://pastebin.com/6QrP8ZbR  neat?
[18:13] <efyx> Hi everybody, is it possible with ffmpeg to encode a video with closed captioning (EIA-708) ?
[18:14] <efyx> Or do you know any other open source tool that can do it?
[18:52] <Sythic> Hey im trying to compile FFMpeg (need FFProbe as well). I configured it, hopefully correctly for what i need (screenshots from ffmpeg and some metadata from ffprobe). However it wont do the install. I get /root/deps/ffmpeg/libavcodec/libx264.c:552: undefined reference to `x264_encoder_open_135'
[18:52] <Sythic> Any ideas what I might be doing wrong?
[19:08] <teratorn> Sythic: you mean it won't compile?
[19:09] <sacarasc> Sythic: Do you have multiple copies of x264 installed?
[19:20] <Sythic> teratorn: sacarasc, um im not sure, make works, make install does not
[19:20] <sacarasc> Yeah, that's what usually happens when you have it installed twice.
[19:20] <Sythic> sacarasc: i dont think so.. i uninstalled the one i had, x264 command doesnt work, then i compile from the repo..
[19:21] <teratorn> "uninstalled" ?
[19:21] <teratorn> that's not something that usually works on a computer
[19:21] <Sythic> apt-get remove x264
[19:21] <teratorn> ok
[19:21] <Sythic> idk if my versions are maybe off or what
[19:22] <Sythic> i have the latest master of both x264 and ffmpeg
[19:22] <teratorn> Sythic: it shouldn't be resolving references in .c files if it were already compiled
[19:22] <Sythic> weird
[19:22] <Sythic> maybe it failed but didnt tell me?
[19:23] <teratorn> pastebin the full output of 'make'
[19:23] <Sythic> well that will take about 20 minutes lol
[19:23] <teratorn> it shouldn't, if it's mostly already compiled
[19:23] <Sythic> oh you can do it again?
[19:23] <teratorn> sure
[19:24] <Sythic> would have been good to know 2 hours ago >
[19:24] <Sythic> ><
[19:25] <Sythic> running make again gives me the error that make install used to, is that normal?
[19:26] <Sythic> sacarasc: any way I could check if i have 2 copies installed?
[19:26] <teratorn> you didn't notice it the first time
[19:26] <teratorn> pastebin the whole output
[19:26] <Sythic> Gotcha
[19:27] <Sythic> teratorn: http://codep.in/2r
[19:32] <teratorn> Sythic: it sounds like you've linked against a different version of x264 than the headers you've compiled against
[19:32] <Sythic> Must have, not sure what to do about that
[19:32] <Sythic> i uninstalled x264 completely before hand
[19:33] <teratorn> you can use objdump -t libavcodec/libavcodec.a to inspect what symbols have been compiled in
[19:33] <teratorn> you'll have some symbol like x264_encoder_open_<BUILD_NUM>
[19:34] <teratorn> so it's linking in a certain version of the x264 static library. which doesn't have the symbol the ffmpeg code expects (which it gets from the x264 headers, I think)
[19:35] <teratorn> Sythic: where did you install x264 to (what --prefix ?) and what additional flags are you giving to ffmpeg ./configure so it knows where to find it?
[19:36] <Sythic> I followed the guide on the ffmpeg wiki, i dont think any of them had me to prefixes
[19:37] <Sythic> this one: https://ffmpeg.org/trac/ffmpeg/wiki/How%20to%20quickly%20compile%20FFmpeg%20with%20libx264%20(x264%2C%20H.264)
[19:37] <teratorn> so you sudo installed? to where? /usr/local? can you search your whole hard drive for x264.h and tell us where you find them?
[19:37] <Sythic> im logged in as root
[19:37] <Sythic> sure
[19:42] <Sythic> teratorn: http://codep.in/2s
[19:42] <Sythic> so yea, couple places
[19:43] <teratorn> Sythic: the first is your git checkout?
[19:43] <Sythic> yes
[19:43] <teratorn> so you have two versions, one in /usr and one in /usr/local
[19:43] <Sythic> which can i delete?
[19:44] <teratorn> Sythic: the one in /usr is from system package, so you need to remove libx264-dev
[19:44] <teratorn> Sythic: I assumed you already had done that as a result of apt-get removing x264
[19:44] <Sythic> i would have thought too
[19:44] <teratorn> do you have that package?
[19:45] <Sythic> ok so now its just the /usr/local
[19:45] <Sythic> yea i did
[19:45] <teratorn> weird
[19:45] <teratorn> you must have libx264 then also
[19:45] <teratorn> since the -dev depends on it
[19:45] <teratorn> you need to remove that also, or just make sure you aren't linking against it
[19:45] <Sythic> nope lol
[19:45] <teratorn> what about libx264<something>
[19:46] <teratorn> Sythic: here it is libx264-123
[19:46] <teratorn> Sythic: you have something im sure of it
[19:46] <Sythic> I think its compiling
[19:46] <Sythic> i got past that error
[19:46] <Sythic> sweet it works
[19:46] <teratorn> lol ok
[19:48] <Sythic> I think its gonna do it, i so hope this works, tired of watching code compile hahah
[19:48] <Sythic> thanks for the help teratorn sacarasc
[19:49] <_janem> hi, why would ffmpeg -i input.mov -sameq output.mov not create an output.mov with the same fps?
[19:49] <teratorn> Sythic: sure
[20:33] <Sirisian|Work> I'm confused about something. If I want to convert a 1080p ogg file to webm and keep the same quality I can't use ffmpeg -i foo.ogg bar.webm. It seems to create a very low quality one. Is it trying to do the conversion at a low bitrate by default? I want it to convert using the best bitrate for the video to get an identical quality
[20:36] <Sirisian|Work> hmm -sameq
[20:39] Action: _janem guessing could it be to do that libx264 is not installed? "Unknown encoder 'libx264'"
[20:47] <Sirisian|Work> I got it
[20:47] <Sirisian|Work> had to use -b 1500k and other flags. Can't run it without flags
[20:57] <LunixA380> hm Sirisian|Work ?
[20:57] <LunixA380> It's weird.
[21:07] <Sirisian|Work> LunixA380, oh I tried to use just ffmpeg -i foo.ogg bar.webm thinking it would convert with the same quality. Ended up having to use ffmpeg -i foo.ogg -b 1500k -vcodec libvpx -acodec libvorbis -ab 160000 -f webm -g 30 bar.webm
[21:07] <Sirisian|Work> Simple mistake. First time using ffmpeg.
[21:07] <LunixA380> I'll investigate a bit
[21:07] <LunixA380> but I thought it was possible to repackage a file without reencoding
[21:25] <_janem> LunixA380: well that what I thought -sameq is for (but I might missing libx264 to this might solve it)
[21:40] <mark4o> do not use -sameq
[21:40] <mark4o> http://superuser.com/questions/478549/what-is-the-sameq-or-same-quant-option-in-ffmpeg-does-it-mean-same-quality/478550#478550
[00:00] --- Fri Jul 19 2013