[Ffmpeg-devel-irc] ffmpeg.log.20141206

burek burek021 at gmail.com
Sun Dec 7 02:05:01 CET 2014


[00:33] <AlexLikerock> hi
[00:33] <AlexLikerock>  how  to  stream  alot music
[00:33] <pzich> run a lot of ffmpeg instances?
[00:34] <AlexLikerock> lol
[00:34] <AlexLikerock> ffmpeg  can run playlist  ?
[00:34] <AlexLikerock> exampl:  .mu3    .pls  ,etc
[00:35] <pzich> looks like no, at least based on https://trac.ffmpeg.org/ticket/1199
[00:41] <AlexLikerock> tanks  pzich ,
[03:03] <Romero2> hello
[03:03] <Romero2> ffmpeg newb here
[03:04] <Romero2> i'm simply trying to change the container of my .mov to .mkv with zero quality loss.  could someone help me with the command line?
[03:05] <klaxa> ffmpeg -i in.mov -c copy out.mkv
[03:05] <Romero2> i'm pretty sure i want a Stream Copy
[03:05] <Romero2> okay thanks
[03:07] <Romero2> what does -c stand for?
[03:07] <Romero2> -codec?
[03:10] <Romero2> hmm okay so "-i" is "input filename"
[03:21] <Romero2> copy is to  "omit the decoding and encoding step for the specified stream, so it does only demuxing and muxing" okay, i get that too.
[03:22] <Romero2> only thing i can't find is what "-c" does in this context
[03:30] <c_14> https://ffmpeg.org/ffmpeg.html#Main-options
[03:31] <c_14> It's an alias for -codec
[03:31] <Romero2> i see, thank you!
[04:00] <Romero2> so to install ffmpeg, you have to mess with Window's system files?
[04:00] <Romero2> you can't enter command lines within its own program?
[04:00] <c_14> hmm?
[04:01] <Romero2> there is no executable to launch or install the program?
[04:01] <c_14> there's ffmpeg.exe
[04:02] <Romero2> i didn't DL the windows package it seems
[04:02] <Romero2> been a long day :(
[04:03] <Romero2> yeah it looks like i downloaded http://ffmpeg.org/releases/ffmpeg-2.5.tar.bz2 instead
[04:03] <c_14> That's the source.
[04:03] <Romero2> that would explain that. :p
[04:23] <Romero2> what does the error  "Packet invalid duration -89 in Stream 1" usually mean?
[04:23] <Romero2> i think Stream 1 is the Video stream
[04:25] <Romero2> my .mov that i muxed to .mkv also doesn't play in VLC.  VLC tells me that it "does not support the audio or video format "undf"
[04:26] <Romero2> undf?  lol
[04:26] <Romero2> all I did was "ffmpeg -i original.mov -c copy new.mkv"
[04:35] <Romero2> FFMPEG appears to report the 4 streams the same as VLC does
[04:36] <Romero2>  "ffmpeg -i original.mov" lists the same stream info that is listed under VLC codec. hmm
[04:39] <Romero2> actually VLC lists the fps as 23.963320 and FFMPEG lists fps as 23.95
[04:40] <Romero2> for stream 0
[07:19] <Romero2> does FFMPEG have any problems with the ProRes version of .mov?
[08:31] <wallbroken> llogan: https://www.dropbox.com/s/v5m6fffo5tfch15/file.txt?dl=0
[11:05] <timkofu> hi
[11:05] <timkofu> im trying to convert a wav file and a jpg into an mp4 that has just the image showing and the audio plays for several hours
[11:05] <timkofu> it's not working
[11:06] <timkofu> here is the woutput
[11:06] <timkofu> http://pastebin.com/pSWQC6zi
[11:06] <timkofu> can someone help?
[12:25] <luc4> Hello! When transcoding to h264 I commonly use the crf param. But will this param adjust the bitrate to get the lowest value possible to provide a quality similar to the original video?
[12:34] <lionel-> hello, i want cut a little piece of sound in my movie.Does it possible with ffmpeg?? many thanks.
[12:39] <anshul_mahe> lionel-: -ss -t are some options you should try
[12:40] <lionel-> anshul_mahe: thank you, i will try .
[12:45] <sanjosekid_82> saste
[12:45] <sanjosekid_82> hi
[12:46] <sanjosekid_82> michaelni
[12:46] <sanjosekid_82> hi
[12:46] <sanjosekid_82> in old doc it mentions that you added FEC to libavutil
[12:46] <sanjosekid_82> is this true?
[12:47] <sanjosekid_82> we are porting FEC to project and if this has already been done then we would rather not recreate the wheel
[13:57] <lionel-> anshul_mahe: ~/Bureau/videosAbeilles$ ffmpeg -ss 2 -i film726.mpeg film726_2.mpeg.
[13:57] <lionel-> that don't do it what i want, that cut the audio and the frame and i would keep the frame.
[14:05] <utack> Hi. quick question, what would i need to enter to get help on how to use a specific video codec. Is there a help page that lists all the options for one codec?
[14:09] <anshul_mahe> lionel-: dont know exact command,please  search in manual of ffmpeg
[14:16] <utack> I am getting a "Unknown encoder 'apng'". Do i need to specify support for it on building? (using the arch testing version)
[19:24] <wallbroken> llogan: https://www.dropbox.com/s/v5m6fffo5tfch15/file.txt?dl=0
[21:10] <kasper93> Is it known issue that HLS stops doenloading new segments after a while? For example on twitch playback randomly stops
[21:11] <kasper93> reloading fixes the problem, but I wonder shouldn't ffmpeg reload manifest itself instead of freezing?
[21:46] <wallbroken> llogan, are you alive?
[00:00] --- Sun Dec  7 2014


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