[Ffmpeg-devel-irc] ffmpeg.log.20140218

[burek]

[00:00] <three_le1s> sorry i'm a noob lol
[00:05] <llogan> three_le1s: i don't understand waht you're trying to do. there is no 1.26.x or 1.27 release of FFmpeg
[00:30] <three_le1s> erm
[00:30] <three_le1s> i meant zoneminder
[00:30] <three_le1s> sorry im tired
[00:30] <three_le1s> llogan:
[00:31] <llogan> three_le1s: this is #ffmpeg.
[00:31] <three_le1s> oh
[00:31] <llogan> you are tired
[00:31] <three_le1s> wow i'm really tired
[00:31] <three_le1s> ty
[00:52] <Hello71> is there an option for "check if this is supported"?
[00:52] <Hello71> very poorly worded question
[00:52] <Hello71> background: I want to use travis-ci to check my project
[00:53] <Hello71> which uses ffmpeg to convert some assets (out of my control)
[00:53] <Hello71> I want to reduce the compile time of ffmpeg, so use --disable-everything and --enable specific (de)muxers, (de)coders, etc
[00:54] <Hello71> I want to run my build system with some option to check that all required options are present
[00:54] <Hello71> like --pretend or somesuch
[00:54] <Hello71> should I just touch output then use -n and examine the output?
[02:05] <Hello71> what protocol do I need to handle local files through ffmpeg?
[02:05] <Hello71> cache? data? file? unix?
[02:05] <Hello71> pipe?
[02:22] <llogan> Hello71: usually a file is used as an input for ffmpeg. see "man ffmpeg-protocols"
[02:23] <Hello71> llogan: what about my previous question?
[02:25] <llogan> Hello71: sorry, but i don't understand your first question.
[02:26] <Hello71> I want to ensure that everything in the... "pipeline" is supported by the currently configured ffmpeg
[02:26] <Hello71> that is, I have included all the correct muxers, demuxers, encoders, decoders, protocols, etc.
[03:08] <Hello71> oh, I thought of a solution
[03:08] <Hello71> -t 00:00:01
[03:11] <Hello71> www/dump/bgm/The_Student_Council.wav: Invalid data found when processing input
[03:11] <Hello71> that's a peculiar error.
[03:11] <Hello71> apparently it means "container is not supported"
[06:09] <Keestu> i am not sure if i need to do dts/pts calculation , if i need to display only video captured from IPed camera, through ffmpeg?.
[06:26] <chooga> looking for a good example of how to use libffmpeg to package h264 + aac into a TS file
[09:27] <superware> can someone please explain how to sync video frames to internal timer using PTS. I found https://trac.handbrake.fr/wiki/LibHandBrakeSync but don't really understand the concept..
[14:05] <FedoraUser> hi friends
[14:05] <FedoraUser> i am trying to set up live broadcast using ffmpeg
[14:06] <FedoraUser> but can't seem to find how to add some text later on in broadcast
[14:06] <FedoraUser> what should I look into?
[18:55] <Magiobiwan> So, I've finally gotten audio capturing working properly on my tuner card encoding setup. Now I need to get video working properly
[18:55] <Magiobiwan> avconv/ffmpeg detects the input to be 320x240 raw video. It should be 720x480 though
[18:56] <Magiobiwan> How do I specify to ffmpeg the input resolution?
[19:07] <llogan> Magiobiwan: use pastebin to show the complete output of: ffmpeg -f v4l2 -list_formats all -i /dev/video0
[19:07] <llogan> and make sure you're using ffmpeg from FFmpeg, and not a fork since this is #ffmpeg and we don't support third-party stuff here.
[19:21] <Magiobiwan> http://pastie.org/8746142
[19:22] <Magiobiwan> llogan, ^
[19:23] <Magiobiwan> Oh
[19:23] <Magiobiwan> That would be a fork
[19:23] Action: Magiobiwan glares at Ubuntu Maintainers
[19:42] <Astyanx> Anyone willing to spend some time helping a novice troubleshoot? :)  I just installed Ubuntu 13.10 server yesterday, but I'm having issues with serviio seeing ffmpeg as installed.
[19:42] <llogan> Astyanx: where is the ffmpeg binary, and where is serviio looking for it?
[19:44] <llogan> Magiobiwan: you can download a static build or compile ffmpeg
[19:44] <llogan> http://trac.ffmpeg.org/wiki/UbuntuCompilationGuide
[19:45] <Magiobiwan> I'd prefer to use the package included with Ubuntu, as this is going to be production once I get it working. What would the IRC channel be for support with the fork Ubuntu uses?
[19:45] <JEEB> Magiobiwan, #libav
[19:45] <Magiobiwan> I wonder if CentOS has support for the tuner cards I'm using...
[19:46] <Magiobiwan> If it does, I'll just jump over to it
[19:46] Action: Magiobiwan will have to investigate
[19:46] <Magiobiwan> Thanks JEEB
[19:46] <JEEB> both are so old I wouldn't use anything packaged with them to be completely honest :P
[19:46] <JEEB> esp. centos
[19:46] <JEEB> at least it seems like ubuntu 14.04 will finally have something newer than Libav 0.8
[19:51] <superware> can someone please explain https://trac.handbrake.fr/wiki/LibHandBrakeSync ? I'm looking for an algorithm for syncing network stream video frames for display.
[21:43] <siscoco> hi all
[21:44] <siscoco> i need help to play a link into ffplay
[21:44] <Magiobiwan> So, using a freshly compiled REAL ffmpeg build, it still only sees the input as being 320x240 raw video
[21:44] <siscoco> but what is strong , is .qmx
[21:50] <siscoco> i really need your help i used user-agent but doesnt work
[21:50] <siscoco> i got all the info from wireshark but still stuck
[21:50] <siscoco> couldnt play it
[21:51] <Hello71> real as opposed to imaginary?
[21:57] <siscoco> is it possible to play qmx on ffmpeg ?
[22:05] <Hello71> !g ffmpeg qmx
[22:09] <Blah> Hi guys, I have a stream 720x576 res coming to ffmpeg, then I feed it to ffserver, I want to have a same resolution when its served by FFServer to a player
[22:09] <Blah> But ffmpeg is refusing to cooperate :)
[22:12] <Blah> max bitrate possibly too small or try trellis with large lmax or increase qmax
[22:12] <Blah> [mpeg4 @ 0x37b0d20] rc buffer underflow
[22:12] <Blah> so I increased on the FFServer side
[22:13] <Blah> and i get the same error
[22:19] Action: Blah needz helpz
[22:24] <superware> if I set AVCodecContext->refcounted_frames = 1; I will later need to av_frame_unref(frame); av_free(frame); per frame, right?
[22:25] <siscoco> most usa channels are now using qmx file and its not playable on ffplay, but what i see , the directory software has avcodec.dll
[22:25] <siscoco> so its how they do ?
[22:29] <siscoco> Move Player
[22:29] <sacarasc> I have never heard of QMX before. :|
[22:31] <siscoco> well its a file used by move player
[22:31] <siscoco> all channels like ABC are using it now
[22:31] <siscoco> im stuck to grab the stream
[23:16] <rcombs> what's the largest size one can expect in a MOOV atom?
[23:39] <active8> hi. trying to slow down a mp4 clip. found a bunch of pages telling me to -vf setpts= string along with a new frame rate and ffmpeg errors that vf is an unknown option. How do I change playback speed. I'd like to not trash the audio - it's a lightning fast classical guitar run, so hearing the notes helps.
[23:40] <active8> intro to La Villa Strangiato, BTW 8) Rush rules!
[23:46] <active8> ok. one  sec
[23:48] <active8> http://pastebin.com/Ebe1jXz6
[23:49] <llogan> your ffmpeg is too old.
[23:49] <active8> i see it's not the ffmpeg I built last month. forgot my ./
[23:49] <llogan> http://trac.ffmpeg.org/wiki/CompilationGuide
[23:52] <active8> thanks. sorry. i saw that just before you responded, but you called it right while I had just a hunch. What's static build have to do with this? llogan? fflogger?
[23:53] <llogan> fflogger is a bot.
[23:53] <active8> i read the build guid 3 times 8)
[23:53] <llogan> you can simply download, extract, and execute the build if you're too lazy to compile.
[23:55] <active8> ah. 'swat I thought you meant, not knowing I had a newer build at the time you posted. it worked, incidentally. I just have to play the result and see if I need to tweak those options
[23:57] <active8> now to figure out how to slow down the audio without changing the pitch. audio editors call that time warp and I forget the real name - 3 different FFT choices, IIRC
[23:58] <llogan> http://ffmpeg.org/ffmpeg-filters.html#atempo
[23:58] <llogan> and also maybe asetpts
[23:58] <active8> asetpts. an intuitive little program, isn't it?
[00:00] --- Wed Feb 19 2014