[Ffmpeg-devel-irc] ffmpeg.log.20150503

[burek]

[00:00:06 CEST] <DragonsLordKERNE> ffmpeg version N-71066-ga2dd2d7 Copyright (c) 2000-2015 the FFmpeg developers
[00:00:06 CEST] <DragonsLordKERNE> built with gcc 4.9.2 (GCC)
[00:00:31 CEST] <DragonsLordKERNE> I am running this on WindowsOS
[00:00:40 CEST] <BtbN> looks recent enough, there was an issue with this like 4 years ago, but it's listed as fixed.
[00:01:09 CEST] <DragonsLordKERNE> Do you think it could be usefull if I open a bug for this?
[00:01:51 CEST] <BtbN> Make sure you aren't messing up somewhere first. Are these plain mp3 files, or some other weird container?
[00:02:15 CEST] <DragonsLordKERNE> and the other question I have is "Do you know if it's possible to set null frames to 0"?
[00:02:41 CEST] <DragonsLordKERNE> no, it's not a weird container ...
[00:02:52 CEST] <DragonsLordKERNE> this is what I am doing ... wait ...
[00:04:30 CEST] <DragonsLordKERNE> http://pastebin.com/rZR99M7p
[00:04:45 CEST] <DragonsLordKERNE> hi grublet
[00:04:52 CEST] <grublet> DragonsLordKERNE: h
[07:15:39 CEST] <FedoraUser> hi friends
[07:15:56 CEST] <FedoraUser> is there a way to specify default audio stream from input file?
[07:16:17 CEST] <FedoraUser> I was looking through documentation, but can't seem to find what value should I use for -map
[09:40:38 CEST] <ruby_on_tails> anyone here has dealt with HD videos on retina display being blurred in full screen mode?
[13:03:41 CEST] <Mavrik> mornin :)
[15:54:15 CEST] <chris88g4> Hello everyone, i have this error but i dont know how to solve it. I had the same issue and i have fixed it but i dont remember the command for the apt-get install. This is the error: [tcp @ 0x29f5320] Failed to resolve hostname
[15:55:10 CEST] <chris88g4> sorry the package for the apt-get install in order to fix it
[16:00:34 CEST] <Mavrik> You're typing in the wrong address.
[16:00:42 CEST] <Mavrik> as in DNS address.
[16:01:45 CEST] <chris88g4> i type http://dns , this dns on other server is working, on this is not working. But i had the same issue and i fixed it , you here told me the package to install it and was ok :(
[20:04:43 CEST] <waddlesplash> If I call avformat_open_input on a FFmpeg build that includes libavdevice, will it automatically use a hardware decoder if one is available?
[20:05:06 CEST] <waddlesplash> Is there some way to tell what will be / won't be hardware accelerated?
[20:07:04 CEST] <JodaZ> can i seek, pts passthru, keep video untouched and transcode audio all at once?
[20:34:14 CEST] <DolphinDream> howdy
[20:34:37 CEST] <DolphinDream> how do i get the metadata from movie file?
[20:34:52 CEST] <DolphinDream> im using -ffmetadata but it doesnt seem to read all the metadata from file
[20:35:15 CEST] <Mavrik> that's a very generic question.
[20:36:04 CEST] <DolphinDream> Mavrik:  ok.. i have some MPG movies i took with a camera .. and i want to convert them to mp4 to import to iMovie.. but during conversion i want to preserver all the metadata and timestamp
[20:36:19 CEST] <DolphinDream> what is the command to transfer the metadata from one movie to the converted version ?
[20:38:14 CEST] <Mavrik> ffmpeg will automatically copy all metadata it can
[20:38:58 CEST] <DolphinDream> Mavrik: heres my terminal output: http://pastebin.com/1ZPSLupR
[20:39:43 CEST] <DolphinDream> the reading of the metadata shows creation_time and encoder  (Canon) .. however the metadata saved to the meta.txt file does not show any of these. Any ideas why ?
[20:40:31 CEST] <Mavrik> did you try using -map_metadata 0
[20:40:39 CEST] <DolphinDream> it seems that it copies the metadata fromtthe audio but not the audio
[20:41:07 CEST] <DolphinDream> use map_metadata 0  when dumping metadata to file or when converting from MPG to mp4 ?
[20:41:54 CEST] <Mavrik> both.
[20:42:06 CEST] <Mavrik> it tells ffmpeg to copy metadata from file 0
[20:42:11 CEST] <Mavrik> read the docs on it.
[20:42:40 CEST] <DolphinDream> ok.. when i use with dumping to meta file.. it does copy the creation_date.. but the encoder is not the video encoder (Canon) but the audio encoder (Lavf56..)
[20:46:08 CEST] <Mavrik> DolphinDream, it's not an audio encoder
[20:46:15 CEST] <Mavrik> it's the ffmpeg encoder and it sets it to itself
[20:46:34 CEST] <DolphinDream> ok
[20:46:57 CEST] <DolphinDream> dont know why then it does not copy the encoder: Canon
[20:47:12 CEST] <Mavrik> why would it
[20:47:20 CEST] <Mavrik> "encoder" means the encoder that encoded it
[20:47:24 CEST] <Mavrik> and that's FFMPEG in your case.
[20:48:11 CEST] <DolphinDream> it doesnt make sense to keep the older enoder then, i presume?
[20:53:47 CEST] <Mavrik> DolphinDream, as far as I know there's not way to persuade ffmpeg not to overwrite that field
[20:54:09 CEST] <DolphinDream> ok.. it makes sense to keep the most recent encoder info.
[20:54:20 CEST] <DolphinDream> thx for your feedback Mavrik
[20:54:51 CEST] <DolphinDream> so you say ffmpeg will try to copy metadata by default ? do i need to specify -map_metadata 0 during conversion then ?
[20:55:48 CEST] <DolphinDream> based on my tests it seems that the map_metadata 0 is needed
[20:57:04 CEST] <Mavrik> I honestly don't remember what the default behaviour is
[21:00:40 CEST] <theRealGent> Hello. I am having trouble concatenating video files using avconv. I used the -i concat:"f|b|c" -c copy out.mov syntax, and I get some error output.
[21:00:54 CEST] <theRealGent> The file that resulted seems to work up to a point, but then freezes on a certain frame till the end of the video.
[21:01:32 CEST] <theRealGent> The error is something like this repeated: [h264 @ 0x1f28f00] AVC: nal size 237983903
[21:01:33 CEST] <theRealGent> [h264 @ 0x1f28f00] no frame!
[21:01:49 CEST] <Mavrik> Might wanna ask that in #avconv channel.
[21:02:31 CEST] <theRealGent> It doesn't exist O.o
[21:07:10 CEST] <Mavrik> or #libav or whatsit :)
[21:07:32 CEST] <Mavrik> theRealGent, can't really support you on wierd bugs for program that's not ffmpeg :(
[21:08:05 CEST] <theRealGent> Mavrik, makes sense. I'm trying to get ffmpeg installed now, but I'm on Ubuntu 14.04 LTS and it's proving to be a headache.
[21:08:28 CEST] <Mavrik> theRealGent, why not just grab a static build? it's a single executable
[21:08:46 CEST] <theRealGent> Mavrik, I first need to find out the codename for my distribution.. hehe
[21:08:58 CEST] <theRealGent> Mavrik, you're talking about http://www.deb-multimedia.org/ ?
[21:08:59 CEST] <Mavrik> https://launchpad.net/~mc3man/+archive/ubuntu/trusty-media
[21:09:00 CEST] <Mavrik> trusty :)
[21:10:01 CEST] <theRealGent> Mavrik, I don't understand PPAs very well and the top of the page says something about doing a dist upgrade, fresh install?
[21:10:14 CEST] <theRealGent> Neither sounds like something I want to do.
[21:13:29 CEST] <theRealGent> I seem to be confusing it with release-update
[21:13:36 CEST] <theRealGent> upgrade*
[21:14:43 CEST] <Mavrik> what.
[21:14:50 CEST] <Mavrik> PPA is just a small repo you add.
[21:15:13 CEST] <theRealGent> I thought the dist-upgrade was going to a release-upgrade. No matter now, i have ffmpeg installed. I will give it a try. Thanks Mavrik
[21:18:35 CEST] <theRealGent> Mavrik, when I do the intermediate steps outlined in http://ffmpeg.org/faq.html#Concatenating-using-the-concat-protocol-_0028file-level_0029 does that just change the container? or does it reencode and potentially lose quality?
[21:20:30 CEST] <theRealGent> And it seems like this ffmpeg binary doesnt come with a manpage? O.o
[21:22:31 CEST] <theRealGent> I gave it a try and it seems like it does. Is there a way I can concatenate without doing those intermediary steps reencoding? They are both mov files with h264
[00:00:00 CEST] --- Mon May  4 2015