[Ffmpeg-devel-irc] ffmpeg.log.20140328

[burek]

[00:01] <voip> llogan, actualy i grabbed this from M3U file http://pastebin.com/tMve5s7x
[00:01] <jnvsor> llogan: What if I record noise only to an audio file - can I subtract it somehow?
[00:13] <llogan> jnvsor: i don't think ffmpeg has that functionality. check the available filters. maybe i'm wrong.
[00:18] <llogan> jnvsor: or maybe sox can do it
[00:36] <voip> Guys, who know how to play streams like http://pastebin.com/tMve5s7x ?
[00:43] <llogan> voip: how do you know it is valid or reachable?
[00:45] <voip> i can check witch vlc
[00:52] <jnvsor> llogan: can sox do it in a stream?
[00:54] <klaxa> jnvsor: sox's noise removal is okayish, if you use pipes it can be done in a live-stream
[00:54] <klaxa> i used it to improve my microphone's quality for VoIP calls
[00:55] <klaxa> there was a delay of some 100-200 ms though
[02:13] <mshadle> wondering if I could get some help, I want to normalize all my video files to a standard def bitrate, a lot are much higher, or varied, so basically a script to intelligently transcode, maintain aspect ratio and resize if necessary. so i can shrink the size my video collection uses. probably would use ffmpeg. would pay for this, and probably quite easy for someone adept at the tools. :)
[03:08] <mshadle> anyone? :p
[03:34] <jbermudes> mshadle: The way I'd approach it would be in your loop to first call ffmpeg with no output to get a listing of the stream data/information. (or mplayer, I forget which one gives more detail). Then use that info about the input to know what options to give to the output
[05:14] <wh-hw> hi,all , what does this error mean : Unknown AudioCodec: libmp3lame ?
[05:19] <jbermudes> wh-hw: What operating system are you using?
[05:25] <wh-hw> ubuntu
[05:25] <wh-hw> jbermudes,i using ubuntu 12.04
[05:30] <jbermudes> wh-hw: Do you have the package ubuntu-restricted-extras installed?
[05:57] <wh-hw> jbermudes, are you still there
[05:57] <wh-hw> jbermudes, i doesn't have it
[05:58] <wh-hw> jbermudes, i installing it now
[06:10] <jbermudes> wh-hw: Did that fix it?
[06:18] <wh-hw> jbermudes, any other thing i can do to fix it ?
[06:20] <jbermudes> wh-hw: Since you're on Ubuntu, are you actually using ffmpeg or are you using avconv?
[06:49] <relaxed> jbermudes: install libavcodec-extra and try again
[06:50] <relaxed> er, I meant wh-hw
[07:05] <SirCmpwn> weirdest shit happening here
[07:05] <SirCmpwn> https://mediacru.sh/wzeuT8SKhH6L
[07:05] <SirCmpwn> view that link in chrome
[07:06] <SirCmpwn> that video is encoded like so: https://github.com/MediaCrush/MediaCrush/blob/master/mediacrush/processing/processors.py#L15
[07:06] <SirCmpwn> only affects webm, it would seem
[07:07] <wh-hw> jbermudes, avconv
[07:08] <wh-hw> relaxed, libavcodec-extra installed
[07:08] <SirCmpwn> ubuntu (and debian in general) is famous for being shit at packaging ffmpeg
[07:08] <SirCmpwn> compile it yourself imo
[07:13] <wh-hw> what about this issue : Feed '/tmp/feed1.ffm' stream number does not match registered feed?
[07:52] <Jack64> ok so I wrote this script that splits a video in parts and then overlays different images over those parts and then uses concat with copy to merge them again. When I split I search for the key frame and feed ffmpeg with something like 180.161195 which is the key_frame start position according to ffprobe so that the temporary split videos before the overlay are split correctly (so that it works with concat copy) but I'm getting mixed results. With some inpu
[08:12] <jbermudes> Jack64: I think your text got cut off at "With some inpu..."
[08:16] <Jack64> With some input videos it works with others I get 1 second or 2 seconds of duplicated frames. Any ideas why?
[08:22] <Jack64> there's a bunch of ways to do what I wanna do and I may be trying to do it the hard way. I suppose I could create a video with the images and then overlay the video right?
[08:25] <jbermudes> I would think so
[08:26] <jbermudes> I have no idea how to help you, but I'm wondering if maybe the problem is concat gets confused trying to handle such a specific position and just ends up using that frame until the time marker gets back to the next integer
[08:28] <Jack64> well I'm only doing that because I do all this stuff in RAM so splitting and merging is virtually instantaneous
[08:29] <Jack64> if using copy
[08:29] <Jack64> and the dup frames appear right after the split so it's the split that's doing it
[08:30] <Jack64> maybe instead of breaking the input video apart I should make a video with the overlays I want and just overlay that
[08:30] <Jack64> it'll probably be easier
[09:12] <troulouliou_dev> hi i m trying to sample an hevc mkv file to 5 minutes with -map 0 -c copy but i get that error :
[09:12] <troulouliou_dev> Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input
[09:19] <Mavrik> troulouliou_dev, that's usually accompanied by a more detailed error
[09:19] <Mavrik> fix that.
[09:19] <Mavrik> also, HEVC is still rather new and possibly buggy
[09:19] <troulouliou_dev> Mavrik, seems so checking atm
[11:27] <taku> Hi there
[11:29] <taku> Sorry to be rude, but Im looking for some hel concerning HLS muxing and Timed metadata insertion with libav, would there be some experts in the room ? :)
[14:13] <RenatoCRON> hello guuys
[14:14] <RenatoCRON> i have a ffmpeg running 13h:08s, the input is a mjpeg stream. it configured to segment
[14:14] <RenatoCRON> but after sometime
[14:14] <RenatoCRON> it doest not die, but stop writting to the disk
[14:16] <RenatoCRON> ok, another process. uptime 195h 28 min
[14:16] <RenatoCRON> last segment video:  Mar 27 23:53
[14:16] <RenatoCRON> current date: Fri Mar 28 13:16:31 UTC 2014
[14:17] <RenatoCRON> -loglevel is warning, and there's nothing on error
[14:19] <RenatoCRON> should I do a code for detect this and restart the process or restart the process each N hours ?
[15:07] <abique_> Hi, what is the shortest way to get an AVFrame of an image, if I have a source url? Thanks!
[15:09] <JEEB> look at the demux/decoding example?
[15:09] <JEEB> under doc/examples
[15:34] <abique_> JEEB, thanks
[17:22] <luc4> Hello! I'm using ffmpeg in my closed source application (build as a dynamic lib). Do I need to add some indication of that in my application?
[17:31] <jnvsor> http://ffmpeg.org/legal.html
[17:31] <jnvsor> Looks like it has everything
[18:35] <jnvsor> Is there a way to rig the volume filter to keypresses and get a sort of push-to-talk filter?
[20:58] <kyle__> I'm trying to convert an mkv to an m4v container using ffmpeg.  I've tried other tools, but considering all of them including ffmpeg give the same error, I'm assuming they're just wrappers using ffmpeg.
[20:58] <kyle__> Application provided invalid, non monotonically increasing dts to muxer in stream 0: -83 >= -83
[20:59] <kyle__> av_interleaved_write_frame(): Invalid argument
[20:59] <kyle__> That's the error, although the confusing thing is it plays flawlessly.
[20:59] <kyle__> How do I get past this?  Even if I have to re-encode the audio?
[21:40] <maujhsn> Currently watching a vid that using h264  video codec & pcm_s16le audio codec want to convert to mp4 using same audio...Whats the ffmpeg command?
[21:58] <maujhsn> maujhsn Thanks, BUT NO THANKS!
[21:58] <maujhsn> ffmpeg! SUCKS!
[21:59] <maujhsn> Check that its not ffmpeg that sucks YOU DO!
[22:13] <sacarasc> What?
[22:14] <jnvsor> Whut was that? XD
[22:23] <kyle__> fflogger: here we go http://pastie.org/8976970
[22:38] <jnvsor> http://pastebin.com/xeyz1cfg - why does -b:v 4096k stabalize at ~3500k?
[22:40] <kyle__> Humm.  I thought the problem was audio decoding (based on the error) so I tried to re-encode the aduio as an mp3, remux it into the mkv, and try the command again, but it gave me the same error
[00:00] --- Sat Mar 29 2014