[Ffmpeg-devel-irc] ffmpeg.log.20130204

[burek]

[00:01] <taylanub> Is Diego Biurrun in this channel ?
[00:02] <taylanub> I'll mail 'em I guess.
[01:05] <pskosinski> Hi. Can I increase/decrease video speed while converting it?
[01:07] <pskosinski> Oh, I was goind to ask what I should use as PTS& Now I see that it's variable, no need to replace. >.> Ok, nvm, thanks.
[01:08] <pskosinski> Oh, but result for webm video is very bad&
[01:42] <Jiyuu|C2> [00:40:15] <@saste> burek, can't be hader than subtitles=in.mkv
[01:42] <Jiyuu|C2> tried that
[01:42] <Jiyuu|C2> doesnt work
[01:42] <Jiyuu|C2> in the documentation i dont see any mention of something like that
[02:09] <glisignoli> Hello, I'm trying to use avconv to convert a mp3 to a 64k ogg. I'm doing "avconv -i somefile.mp3 -b 64k output.ogg" except the file output ends up as a flac, and much larger
[02:10] <sacarasc> #libav is the avconv channel.
[02:10] <glisignoli> ah sorry
[02:10] <sacarasc> Hint: -c:a libvorbis
[02:12] <glisignoli> Nice!
[02:28] <Animawish> so I just transcoded an mkv file to mp4, and the video was fine, but the audio went to shit. I used the command "ffmpeg -i file.mkv newfile.mp4". What should I do to make the sound survive the conversion?
[02:28] <sacarasc> -c:a copy
[02:29] <sacarasc> If you have an MP4 compatible audio stream, anyway.
[02:29] <Animawish> how do I know if I have an mp4 compatible audio stream?
[02:30] <sacarasc> ffprobe -i file.mkv
[02:30] <sacarasc> Then paste to a pastebin type site and someone will tell you.
[02:31] <Animawish> http://pastie.org/6035603
[02:32] <kcm1700> I want to know the required lifetime of the 'extradata' field of AVCodecContext
[02:32] <kcm1700> Is it okay to throw away after avcodec_open2?
[02:33] <sacarasc> Animawish: I don't think AC3 can go in MP4...
[02:33] <Animawish> hm
[02:33] <Animawish> well it doesn't have to be mp4
[02:33] <Animawish> idek if i'm doing the right thing
[02:33] <Animawish> i'm just trying to get these video files into a burnable format
[02:34] <sacarasc> Why is it not burnable now? Or do you mean playable in some kind of device?
[02:34] <Animawish> yeah. i want to burn them to DVDs to put in a DVD player to play on an awful TV that doesn't have HDMI in :P
[02:35] <Animawish> hate that TV but whatareyagonnado
[02:35] <sacarasc> What does the DVD player support?
[02:36] <Animawish> idk. I was thinking I'd just use like, iDVD or equivalent to burn it
[02:36] <kcm1700> I'm talking about the situation of decoding.
[02:38] <sacarasc> Animawish: What is iDVD? :D
[02:39] <Animawish> a first party DVD burning program in mac os
[02:39] <sacarasc> Does it just burn, or does it convert?
[02:41] <Animawish> i'm not sure
[02:41] <Animawish> like
[02:41] <Animawish> i can't use mkvs with it for sure
[04:04] <Soho_> hi all
[04:05] <Soho_> I am new in ffmpeg field
[04:05] <Soho_> I have question about :how to get video frame from usb web cam then straming to remote client
[04:05] <Soho_> the video format is h.264,
[04:06] <Soho_> is there any example about this kind of application
[04:07] <Soho_> it is not necessary to encode for video frame, because the content has been encoded by webcam
[04:07] <Soho_> Does anyone have idea ?
[04:15] <Soho_> Can I send video frame from usb webcam to network without transcode ?
[04:18] <Soho_> And
[04:18] <Soho_> if the video is H.264 and audio is PCM from USB web CAm,
[04:19] <Soho_> which container is suitable for streaming by ffserver?
[04:19] <Soho_> Does anyone have idea about my question?
[04:20] <Soho_> I would like to send video stream to remote client by ffmpeg, is there any exmaple for reference?
[08:08] <elkng> I use command ffmpeg  -i "1.mp4"  -vcodec mpeg4 -vb 1500k -s 650x276  -ab 128k -ar 44100 -ac 2 -acodec libmp3lame -y -f avi "1.avi" to convert video from mp4 to avi and thats the error output: http://sprunge.us/ZdbW what is wrong ?
[08:35] <relaxed> elkng: replace "-s 650x276" with "-filter:v scale=650:-1"
[08:36] <relaxed> you may need to specify an output frame rate too.
[08:50] <SubJunk> How can I load videos with commas in the name? I've tried using -i file:'filename.mpg' with no luck
[09:02] <relaxed> SubJunk: -i ./input,name.ext
[09:02] <elkng>  or './input,name.ext' ?
[09:12] <SubJunk> Thanks, got it working by escaping the comma with a backslash :)
[09:12] <SubJunk> Is it normal for subtitles to ignore seeking? Like if I use -ss 100 then the video and audio start 100 seconds in but the subtitles start at the beginning
[09:31] <XATRIX> Guys, can you advice me what do i do wrong ? I'm tryting to glue/concat 3 mp3 files with voice
[09:31] <XATRIX> Into a one, result.mp3
[09:32] <XATRIX> Encoding does good, but the result mp3 is unstable on a few browsers + it has broken pitch rate
[09:32] <XATRIX> The command i issue to endoe it is : ffmpeg -i "concat:en1.mp3|ru1.mp3|ru2.mp3" -acodec copy /mnt/www/rf.ua/result.mp3
[09:32] <XATRIX> You can check the result mp3 by http://rf.ua/result.mp3
[09:33] <XATRIX> Also you can check the initial (good ones) mp3s by http://rf.ua/en1.mp3 http://rf.ua/ru1.mp3 http://ru2.mp3
[09:33] <XATRIX> English voice is ok, but the next 2 mp3s pitch rate failed
[09:34] <XATRIX> What can be wrong ?
[09:34] <XATRIX> http://fpaste.org/gxcT/ - the log of encoding process
[09:52] <Soho> hi
[09:52] <Soho> I got the trouble, when I build ffmpeg 1.1.1
[09:52] <Soho> ffmpeg is not build
[09:53] <Soho> but fferver and fforibe are built
[09:53] <Soho> the config.h shows #define CONFIG_FFMPEG 0
[09:53] <Soho> does anyone have idea?
[09:53] <Soho> that I can use ffmpeg
[09:53] <Soho> that I canNOT use ffmpeg
[09:55] <Soho> Does someone help me?
[10:51] <XATRIX> Sorry guys, were network connection problems...
[10:52] <XATRIX> So any ideas on my question of ffmpeg and concat a few files ?
[11:14] <elk> I'm trying to get ffmpeg to read from a file which is growing (ongoing recording) but to not exit when it reaches the files EOF, I have tried retuning AVERROR(EAGAIN) instead of a AVERROR_EOF when it reaches the EOF..
[11:14] <elk> Because I'm reading from a mov-file i looked at mov.c in libavformat but I can find where the actual file is read
[11:14] <elk> I was thinking of peeking into stream and wait if the next data is a eof
[11:25] <XATRIX> I have a trouble with ffmpeg encoding of a few files, can you look at ? http://fpaste.org/O8cf/
[12:20] <XATRIX> Guys, please help me with my trouble, i'm really stucked here ... :( http://fpaste.org/O8cf/
[13:08] <XATRIX> As long as i see my troubles is that en1.mp3 has 16000Hz freq, and ru1.mp3&ru2.mp3 has 22050
[13:09] <XATRIX> So when it does concat of en1.mp3+ru1.mp3+ru2.mp3 it prolong 16000 freq along the whole resulting mp3
[13:09] <XATRIX> Can't change it :(
[13:09] <XATRIX> Any ideas ?
[14:07] <sacarasc> XATRIX: You'd have to resample before concatenating...
[14:14] <XATRIX> sacarasc: Any possibility to resample while concat ?
[14:15] <sacarasc> Only if you want to re-encode all of them, I think.
[14:16] <XATRIX> Yes, i tried to reencode all of them to -ab 32kb -ar 22050
[14:16] <XATRIX> But the resulting mp3 has the same shit
[14:16] <p4plus2> If I had a set of 6 videos and wanted to arrange them in a 3x2 grid how would one go about this in ffmpeg?
[14:17] <XATRIX> I can only fix it out with recoding the 'broken' mp3s from 16000 -> 22050 and then apply concat
[14:17] <p4plus2> (optionally there can be a 7th video as a background generated black if needed -- not a problem)
[14:17] <XATRIX> But isn't there any possibility to resample/recode it on fly with only one command ?
[14:58] <Zeeflo> hi guys
[14:58] <Zeeflo> the -sn option leaves out subtitles in mkv's
[14:58] <Zeeflo> what the option if I dont want chapters as well?
[15:00] <JEEB> see the documentation on ffmpeg.org about metadata, I think chapters are included in that part of it
[15:00] <JEEB> since it's not really a "codec" I don't think you have a simple option like an/vn/sn for it
[15:00] <Zeeflo> hmm
[15:00] <JEEB> as those are what "codecs" handle
[15:00] <JEEB> there was something to null all metadata or not copy it around
[15:00] <JEEB> that might be what you want
[15:01] <Zeeflo> that would be useful as well
[15:03] <JEEB> oh
[15:03] <JEEB> there's something separate
[15:04] <JEEB> -map_chapters
[15:04] <JEEB> http://ffmpeg.org/ffmpeg.html
[15:04] <JEEB> -map_chapters input_file_index (output)
[15:04] <JEEB> "Copy chapters from input file with index input_file_index to the next output file. If no chapter mapping is specified, then chapters are copied from the first input file with at least one chapter. Use a negative file index to disable any chapter copying."
[15:04] <JEEB> see the last sentence
[15:17] <Zeeflo> JEEB, use a negative file index?
[15:17] <Zeeflo> what would that look like?
[15:18] <JEEB> -map_chapters -1  ?
[15:19] <happarappa> Hello. I am trying to convert some .wavs to .flacs to save storage space with ZERO loss of quality. Is ffmpeg.exe -i test.wav -sameq test.flac safe for doing this?
[15:20] <sacarasc> No need for -sameq.
[15:20] <Zeeflo> ahh like that
[15:20] <happarappa> I cannot HEAR a difference to the resulting file, but Winamp says "14H" in the case of the WAV and 925 kbps for the FLAC.
[15:20] <sacarasc> Flac is lossless.
[15:20] <D0minat0r> ffmpeg -vcodec copy -acodec copy -ss 0 -t 00:01:00 -i VIDEO_SOURCE.mp4 VIDEO_PART.mp4 That command will be the easiest way for me if i want to 1min split video_source.mp4 to video_part.mp4, right?
[15:21] <happarappa> sacarasc: Well, it does say it ignores the "-sameq".
[15:21] <happarappa> But if FLAC is lossless, why doesn't Winamp say "14H" in the FLAC file?
[15:21] <sacarasc> happarappa: If you have a text file and you put it into a zip file, does it not get smaller without losing anything? FLAC is the same thing, but for music.
[15:21] <Zeeflo> because winamp sucks
[15:21] <happarappa> sacarasc: I know what lossless means...
[15:21] <D0minat0r> And i will be able to split everything that ffmped supports?
[15:21] <sacarasc> It reduced the bitrate.
[15:21] <D0minat0r> I will get audio and everything?
[15:22] <sacarasc> So it won't show the same one.
[15:22] <happarappa> So basically, you are saying that it reduced the bitrate to the smallest possible WITHOUT losing a single bit of info?
[15:22] <sacarasc> Yes.
[15:22] <happarappa> Ah. Makes sense.
[15:22] <happarappa> So CD quality is in other words 925 kbps.
[15:22] <sacarasc> Well, maybe not the smallest, as you didn't tell it which compression setting to use.
[15:22] <happarappa> I who thought 320 kbps sounded great...
[15:23] <sacarasc> And it varies between tracks.
[15:23] <happarappa> That last thing you said confused me entirely.
[15:23] <happarappa> "as you didn't tell it which compression setting to use."
[15:23] <happarappa> Why would it not use the maximum?
[15:23] <sacarasc> It can compress lightly or heavily.
[15:23] <sacarasc> Because ffmpeg's defaults aren't always what you want.
[15:23] <happarappa> What possible reason could there be to not do it as efficiently as possible?
[15:24] <sacarasc> It uses SLIGHTLY more CPU time to encode/decode higher compressed audio.
[15:24] <happarappa> I suppose... in 1994. These days, the computers barely need to grasp for air to do it.
[15:24] <happarappa> What option would that be, BTW? I would like to make them as small as possible.
[15:25] <sacarasc> -q 9, I think, but I am unsure.
[15:25] <happarappa> :(
[15:25] <happarappa> Will the difference be noticable?
[15:25] <happarappa> I mean in resulting file size.
[15:25] <durandal_1707> happarappa: what is your issue?
[15:25] <happarappa> Or is this an exercise in futility?
[15:26] <sacarasc> happarappa: You could get it down another few hundred kbps...
[15:26] <sacarasc> Depending on track.
[15:26] <happarappa> durandal_1707: Um... I guess I'm trying to figure out how to convert a .wav to .flac with the best possible compression without losing any data.
[15:26] <sacarasc> It's variable bitrate, so could be anywhere.
[15:26] <durandal_1707> -q is for lossy not for lossless
[15:26] <durandal_1707> happarappa: -h full and look for flac
[15:27] <durandal_1707> there are options that control compression
[15:27] <happarappa> But...
[15:28] <durandal_1707> what?
[15:29] <durandal_1707> use -prediction_order_method search
[15:29] <durandal_1707> other options like -q do nothing for lossless codecs
[15:29] <happarappa> I am confused about what you mean.
[15:29] <happarappa> "use -prediction_order_method search" is not English to me.
[15:30] <sacarasc> ffmpeg -i foo.wav -prediction_order_method search out.flac
[15:32] <happarappa> Can't find a mention of prediction_order_method in http://ffmpeg.org/ffmpeg.html
[15:32] <sacarasc> ffmpeg -h full
[15:32] <sacarasc> That would have told you about it.
[15:32] <sacarasc> ffmpeg -h full > blah.txt #so you can read it after.
[15:33] <happarappa> It's just that it's not PATHed, so it's very annoying to call.
[15:33] <happarappa> But why is the HTML manual not complete?
[15:34] <happarappa> I have it now. Reading.
[15:36] <sacarasc> The HTML docs aren;'t complete because just a text output of the full help is over 90kB long. :D
[15:37] <happarappa> Hehe. 8 kB larger was the file that was not -prediction_order_method searched.
[15:38] <happarappa> At least for the test track.
[15:38] <happarappa> I would never in a million years have guessed that I would need to use that parameter/argument.
[15:38] <happarappa> Why can't the defaults be optimized?
[15:40] <durandal_1707> because defaults are to be fast
[15:41] <durandal_1707> and flac can be documented in encoders, but it just is not....
[15:41] <durandal_1707> could file bug report
[15:42] <happarappa> "flac can be documented in encoders"?
[15:46] <durandal_1707> happarappa: encoders is file that document encoders present in ffmpeg
[15:47] <durandal_1707> see http://ffmpeg.org/ffmpeg-codecs.html#Audio-Encoders
[15:54] <Youka> How i can extract attachments and subtitles as raw data with the API? It seems that AVPacket doesn't contain attachments and subtitles just as event lines (which seems to be buggy because in an example the first 15 lines are missing)
[15:57] <happarappa> durandal_1707: That is confusing.
[15:58] <durandal_1707> what is confusing?
[16:01] <happarappa> "encoders is file that document encoders present in ffmpeg"
[16:01] <durandal_1707> ok full name is doc/encoders.texi
[16:02] <happarappa> Sigh...
[16:02] <happarappa> Are people getting more vague and confusing?
[16:02] <happarappa> It feels like it to me.
[16:05] <durandal_1707> if you are not interested in helping you should not care at all for "confusing lines"
[16:06] <durandal_1707> actually the easiest way for you to help is filling bug report for anything you feel should be improved/documented/etc...
[16:07] <happarappa> I don't understand what you are saying.
[16:07] <happarappa> That's why I ask.
[16:07] <retard> if you have a general feeling of other people getting more vague and confusing the root cause might not be the other people
[16:07] <happarappa> Or it might actually be just that.
[16:08] <retard> or it might not
[16:08] <retard> like i said
[16:08] <happarappa> But it is.
[16:08] <retard> not necessarily
[16:08] <happarappa> Not necessarily, but it is.
[16:10] <durandal_1707> funny
[16:13] <retard> it is... but is it really?
[16:50] <D0minat0r> Got so many errors when i try to use ffmpeg ;<
[16:50] <D0minat0r> isnt it just to apt-get install ffmpeg
[16:58] <D0minat0r>  configuration: --extra-version='4:0.7.6-0ubuntu0.11.10.3' --arch=amd64 --prefix=/usr --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
[16:59] <D0minat0r> did i miss'd something or wtf? ;<
[17:05] <D0minat0r> cmon.... someone?
[17:33] <D0minat0r> still no one here?
[17:49] <Youka> ask in stackoverflow, ffmpeg forum or google for it when nobody here can help you
[17:50] <burek> D0minat0r probably because
[17:51] <burek> you didnt read the topic
[17:51] <burek> and also didnt provide log
[17:51] <burek> -ffmpeg command +configure command
[18:07] <WillieNL> ola i wonder what happend with libva ?
[18:07] <WillieNL> original project host seems to be offline
[18:07] <burek> which host
[18:08] <WillieNL> burek: http://www.splitted-desktop.com/~gbeauchesne/libva/
[18:09] <burek> did you try google
[18:09] <burek> for example http://cgit.freedesktop.org/libva/
[18:09] <WillieNL> yes found via other sources but unsure if the project is still maintained
[18:09] <burek> btw, isn't there some kind of irc channel for that or ML or something
[18:09] <burek> i mean, is libva related to ffmpeg in some way or what
[18:10] <WillieNL> dunno ffmpeg costh me half my day here due a old bug in old release...
[18:10] <WillieNL> ffserver from 0.6.x -> Aspect ratio mismatch between encoder and muxer layer
[18:10] <WillieNL> known issue
[18:10] <burek> oh man... 0.6...
[18:11] <WillieNL> well before we argue i only need to test something on this old rig
[18:11] <WillieNL> somehow ffserver is having a issue wich made update ffmpeg more usefull then reinstall a complete machine
[18:11] <burek> well i can understand you need that exact version, i just feel sorry, knowing what all does it bring with itself :S
[18:11] <WillieNL> well it sucks if need to debug a remote rtmp host like this yes
[18:11] <WillieNL> :S
[18:12] <WillieNL> well it do work but no meta data
[18:18] <WillieNL> burek: do ffmpeg hold old releases on a ftp or some like that ?
[18:18] <D0minat0r> I did try everything that the wiki said, still nothing so
[18:19] <D0minat0r> Got alot of errors thar i havent enable everything
[18:21] <burek> WillieNL, what do you mean by "old releases"
[18:21] <burek> you do use git, right?
[18:21] <burek> D0minat0r, right above what I already answered you earlier
[18:21] <WillieNL> -> ffmpeg-0.6_p28715.tar.bz2
[18:21] <burek> read that
[18:22] <burek> WillieNL, when you type ffmpeg in your shell
[18:22] <burek> what is the version string that you get in return
[18:22] <WillieNL> FFserver version SVN-r25767,
[18:22] <burek> oh, i see.. well, it's just too old
[18:23] <burek> i was hoping it was a version after the transition to git
[18:23] <burek> so you could simply checkout that version
[18:23] <burek> wait, let me ask other people
[18:23] <WillieNL> burek: this is my problem -> http://roundup.libav.org/issue2467
[18:24] <D0minat0r> burek http://pastie.org/6044359
[18:24] <D0minat0r> that what i got
[18:24] <burek> D0minat0r, you are not using ffmpeg
[18:24] <burek> you are using a fork of ffmpeg
[18:24] <burek> and it's a very old one
[18:25] <burek> either ask your question in a support channel for that fork project
[18:25] <burek> or use real ffmpeg
[18:25] <D0minat0r> Oh, shit, sry
[18:25] <D0minat0r> apt-get install ffmpeg was the wrong one then
[18:26] <burek> yes it was
[18:27] <D0minat0r> Sry,
[18:27] <burek> there was an issue with ubuntu/debian community which they didnt properly resolve
[18:27] <burek> causing all that mess you are experiencing right now
[18:27] <D0minat0r> Oh i see, so i have to build it from the source?
[18:27] <beastd> D0minat0r: Debian does not have FFmpeg anymore because the maintainer of FFmpeg Debian packages is one of the forkers.
[18:28] <D0minat0r> But i use ubuntu server
[18:28] <burek> ubuntu is based on top of debian
[18:28] <beastd> it is related. but look here
[18:28] <beastd> D0minat0r: http://ffmpeg.org/download.html
[18:28] <burek> WillieNL, good new
[18:28] <burek> s
[18:28] <burek> you can find a corresponding git version based on your svn version
[18:28] <D0minat0r> Hm i see
[18:29] <D0minat0r> But do you guys know any other program like ffmpeg?
[18:29] <D0minat0r> I just need to make samples
[18:29] <burek> if you check out the official ffmpeg's git log, you'll see something like this in one of the commits: "Originally committed as revision 25767 to svn://svn.ffmpeg.org/ffmpeg/trunk"
[18:29] <burek> which happens to be this one
[18:29] <burek> 47d2ddca802f4c1bc4b454c5ac40f06f79b740a0
[18:30] <WillieNL> burek: ahh but if can upgrade to 0.7.1 then also ensured not bumping into the same bug i hope while unsure if can play/stream/transcode mp4 without h264
[18:30] <D0minat0r> Ah okey
[18:31] <burek> WillieNL, using git you can always move forward/backward with different ffmpeg versions and test your issues
[18:31] <burek> with tar.bz2 file, you just have one version
[18:32] <WillieNL> burek: jup but gentoo is not always using git in theire ebuilds
[18:32] <burek> D0minat0r, it's actually very easy to compile your own ffmpeg
[18:32] <burek> did you check out our wiki for example
[18:33] <WillieNL> burek: manual plugin versions in a outdated gentoo setup can be tricky :)
[18:33] <D0minat0r> Yepp, tried this one: http://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide
[18:33] <D0minat0r> Didnt work
[18:33] <WillieNL> but thanks do have a running build gona get a smoke and look if can make the ffserver functional
[18:34] <burek> D0minat0r, what exactly didnt work
[18:34] <WillieNL> ubuntu and compilation sounds wrong :S
[18:34] <burek> WillieNL ok :) good luck with all that
[18:35] <WillieNL> ffserver version 0.7.1 ffserver.conf:22: Unknown VideoCodec: libx264
[18:35] <WillieNL> well looks much better :)
[18:35] <WillieNL> Mon Feb  4 18:35:40 2013 FFserver started.
[18:35] <WillieNL> ;-)
[18:54] <JEEBsv> ls
[18:54] <JEEBsv> ugh, did the usual
[19:27] <quup> hi, can I export all frames as PNG back-to-back to the same (fifo) file?
[19:29] <quup> or just to stdout
[20:34] <DimStar> Good evening... do you know of issues with ffmpeg when playing .wma / .wmv files, as described in http://trac.videolan.org/vlc/ticket/1817 (the 'solution' seems to be to revert to ffmpeg 1.0)
[20:51] <juanmabc> http://www.youtube.com/watch?v=BHPzjpojlz0
[20:52] <juanmabc> mistery intended
[20:52] <shevy> hmm can .lpd files be converted via ffmpeg?
[20:52] <shevy> ik.lpd: Invalid data found when processing input
[21:11] <llogan> DimStar: can you duplicate the issue in current ffmpeg? one of the samples in that report sounds fine to me with ffplay.
[21:15] <DimStar> llogan: I tried with vlc 2.0.5 linked against ffmpeg 1.1.1 (which is the latest release)
[21:15] <WillieNL> burek: well quick testing looks like even working :) but no audio due my own misconfig somewheire so i have something todo :p
[21:46] <llogan> DimStar: if it worked for me in ffplay then i would guess it is a VLC issue (unless the file was created by ffmpeg and it also does not work in WMP).
[21:46] <DimStar> llogan: seems to be the interaction VLC / ffmpeg 1.1... whereas it was fine with 1.0
[22:09] <veleno> hello. for a research project, i'm trying to convert an input video file into so that i have several versions of it at various bitrates. i need the output files to have a constant bit rate.
[22:11] <veleno> now, this is the coomand-line that i use http://pastebin.com/k9pUH1cR and then i play with VLC to see what the media information statistics report
[22:27] <relaxed> veleno: for cbr you need to set bitrate, minrate and maxrate to the desired bitrate
[22:28] <veleno> relaxed: are those encoder-specific options ?
[22:28] <veleno> relaxed: i was using already " -x264opts bitrate=256:vbv-maxrate=256:vbv-bufsize=166 "
[22:29] <relaxed> -b:v 256k -minrate 256k -maxrate 256k
[22:29] <relaxed> I guess you can do it with -x264opts too
[22:35] <veleno> so the muxrate is something not related
[22:35] <relaxed> correct
[22:42] <blitz> if I wanted to encode something to vbr mp3 can I do that through ffmpeg? I'm trying to use subsonic and transcode anything that isn't mp3 over to v0, right now it uses ffmpeg -i %s -ab 320k -v 0 -f mp3 - where %s is the filename
[22:44] <blitz> or do I need to use lame
[22:53] <veleno> mmm does ffmpeg also provide some tool to check the bitrate (average, instantaneous) of a given video file ?
[23:40] <brontosaurusrex> would vc1 in mkv be something common/supported, or ....?
[23:46] <JEEB> brontosaurusrex, not sure if VC-1 has an official mapping in matroska
[23:47] <brontosaurusrex> hmm, mkvmerge just removes a ts to mkv with vc1 with no hickups, lets see if my tv can play those ...
[23:47] <brontosaurusrex> removes = remuxed
[23:48] <JEEB> don't find it in http://www.matroska.org/technical/specs/codecid/index.html at least
[23:48] <JEEB> wouldn't stop it from muxing it some other way of course
[23:49] <FergusL> Hi, I'm on Ubuntu, trying to compile something coded on Debian, I'm running into an error with libavutil-dev... which is not being updated on Ubuntu in favor of Libav. What could I do to compile ?
[23:51] <veleno> is it possible to tell ffprobe to use the same size unit for all the frames? sometimes it uses byte, others Kibyte
[00:00] --- Tue Feb  5 2013