[Ffmpeg-devel-irc] ffmpeg.log.20111218

[burek]

[00:09] <doudou> Hi ./configure ask for pr, pr sh: pr; not found
[00:09] <doudou> search google keywords like pr ... is very funny
[00:15] <treund> look in the config.log to see for more info
[00:15] <monstaRtruck> Incompatible pixel format 'yuvj420p' for codec 'mpeg4', auto-selecting format 'yuv420p'
[00:15] <monstaRtruck> wthhh
[00:16] <JEEB> it means that MPEG-4 Part 2 encoder doesn't want to do full range YUV
[00:16] <JEEB> yuvj420p = full range 4:2:0 planar
[00:16] <JEEB> yuv420p = limited range 4:2:0 planar
[00:16] <Mavrik-> JEEB, what is "planar" in this context?
[00:17] <JEEB> planar vs packed planes
[00:17] <Mavrik-> oh I see, that helped my googling :)
[00:17] <JEEB> Y'UV420p is a planar format, meaning that the Y', U, and V values are grouped together instead of interspersed. The reason for this is that by grouping the U and V values together, the image becomes much more compressible. When given an array of an image in the Y'UV420p format, all the Y' values come first, followed by all the U values, followed finally by all the V values.
[00:18] <Mavrik-> and packed is when you have image in Y'UVY'UVY'UV... sequence array?
[00:19] <JEEB> yeah
[00:19] <JEEB> NV12 IIRC was a packed 4:2:0 format
[00:20] <JEEB> ugh
[00:20] <JEEB> I was wrong? gonna recheck
[00:21] <JEEB> anyways, yeah -- YUV formats fall into two distinct groups, the packed formats where Y, U (Cb) and V (Cr) samples are packed together into macropixels which are stored in a single array, and the planar formats where each component is stored as a separate array, the final image being a fusing of the three separate planes. 
[00:24] <doudou> i found sh was busybox, i need coreutils installed.
[00:25] <treund> doudou: how can you run a linux machine without coreutils .. hence the name COREutils 
[00:29] <monstaRtruck> ok so can i rotate
[00:36] <monstaRtruck> ok fine i cant rotate
[02:49] <burek> is it possible to generate sample audio waveform (syne wave of xx Hz) with ffmpeg? :)
[02:51] <burek> for example, to create a dummy syne wave and loop it as an audio input :)
[03:28] <raijin> why would i have to use FLME to stream to livestream?
[03:28] <raijin> doesnt ffmpeg encode?
[03:29] <raijin> how can I stream something directly to livestream?
[03:30] <raijin> fk it may be easier just to run a wowza server myself
[04:07] <monstaRtruck> <monstaRtruck> i did get the new ffmpeg tho
[04:07] <monstaRtruck> <monstaRtruck> w all the codecs or whatever i need
[04:07] <monstaRtruck> <monstaRtruck> and was able to rotate and crop my video
[04:07] <monstaRtruck> <monstaRtruck> and cut it up
[04:07] <monstaRtruck> thx pplz
[06:45] <|Anthony|> is there a ppa for latest svn builds?
[07:58] <relaxed> |Anthony|: ffmpeg uses git now. http://bit.ly/3xSE5
[08:38] <Wizord> hi. I have an old .rm (RV30, as reported from mplayer) video, and when I decode it with ffmpeg/mplayer, there are chroma leaking artifacts. could it be possible it's an ffmpeg-rmbv compatability issue and if so, is there a better decoder available?
[09:00] <Wizord> so now I'm into decoding chroma with realalternative and luma with ffmpeg :V
[12:58] <Shimmy> Can anyone help me please: https://ffmpeg.org/trac/ffmpeg/ticket/747
[13:01] <Mavrik-> it's not clear what help do you want?
[18:45] <sprayd> hello michaelni 
[18:49] <michaelni> hello sprayd 
[18:53] <sprayd> michaelni, i approached the secretariat of the multimedia coding standards committee, the ITTF organization and the IT standards committee's general secretary but didn't get a reply
[18:54] <sprayd> ...till now
[18:54] <sprayd> it seems all i have to do is wait
[18:56] <michaelni> yes
[18:58] <sprayd> waiting feels like a waste...
[18:58] <sprayd> :(
[18:59] <michaelni> well, if theres a phone number you could try to call but i guess sunday before christmess this is not the best time
[19:11] <sprayd> yeah
[20:02] <fannagoganna> hi, i have compiled ffmpeg with aacplus. Are there examples of encoding aacplus m4a audio using ffmpeg 
[20:03] <Mavrik> ffmpeg -i <file> -acodec libaacplus -ab 64k -ac 2 -ar 44100 file.m4a
[20:03] <Mavrik> fannagoganna, just remember, libaacplus only support bitrates up to 64k
[20:03] <fannagoganna> ah ok
[20:03] <fannagoganna> yes, I was using 128k using normal aac (faac)
[20:09] <Laerd> Hi, I have some trouble configuring the ffmpeg-package. It won't find the source libx264 package, although it was installed for a couple of minutes ago. When I run a checkinstall for the x264-package it says that everything is OK. Any ideas? I'm a beginner, so please be patient with me. :)
[20:11] <Laerd> I know the path to the x264.pc file, but I'm not sure of which command to run to make the configuration find the package.
[20:13] <newl> did the ffmpeg get the x264 or was it preinstalled?
[20:15] <Laerd> I was following this guide -> http://ubuntuforums.org/showthread.php?t=786095, so I removed both x264 and libx264-dev package before compiling and installing x264
[20:20] <sdz> Is there an option to automatically compress down to a particular file size?
[20:20] <sdz> I have a 50 MB Ogg Video that I want as a 24 MB MPEG
[20:23] <sdz> join #linuxhelp
[20:23] <sdz> oops...
[20:28] <Mavrik> sdz, automatically no :)
[20:28] <Mavrik> calculating that is fairly trivial though
[23:31] <ShadesEdge> Hello, how can I compile ffmpeg with git on my Windows 7 HP 64-bits computer? 
[23:32] <woden> What would be the correct way to say that you converted a video from a Quicktime contained H.264 encoding to a VP8 encoding placed in a Matroska container?
[23:32] <woden> Re-encode, transcode?
[23:33] <woden> How do I turn off audio controls for this HTML5 element?  http://fpaste.org/Yh64/
[23:33] <sacarasc> Transcoded.
[23:33] <woden> oops ignore above
[23:34] <woden> So would this be a valid statement:  I transcoded the video from a Quicktime contained H.264 encoding to a VP8 encoding placed in a Matroska container.
[23:35] <burek> ShadesEdge, you can use Visual Studio or Eclipse
[23:35] <woden> sacarasc, ^
[23:35] <ShadesEdge> oO
[23:37] <burek> woden yes
[23:37] <ShadesEdge> Sorry, I wasn't clear in my question. I have git on my computer and I can compile it, but I don't know the exact command. 
[23:37] <burek> h264 and vp8 are named codecs (in your case) and quicktime and matroska containers
[23:37] <woden> burek, What would be the proper way to say that you removed the sound stream from the video?  I used ffmpeg to delete the sound.  Is it proper to refer to it as a stream removal?
[23:37] <burek> ShadesEdge, what compiler do you have
[23:38] <burek> woden, you've removed an audio stream from a container
[23:38] <burek> container(video stream + audio stream)
[23:38] <ShadesEdge> Wait, I'm still searching it
[23:38] <ShadesEdge> I don't remember the name, but it gives me an environment similar to Linux. 
[23:39] <burek> cygwin
[23:39] <burek> mingw
[23:39] <ShadesEdge> Yea, I think. 
[23:39] <ShadesEdge> I also have Code Blcoks
[23:39] <ShadesEdge> Code Blocks*
[23:40] <burek> http://ffmpeg.org/faq.html#Can-I-use-FFmpeg-or-libavcodec-under-Windows_003f
[23:42] <ShadesEdge> ?
[23:42] <ShadesEdge> The wiki is under maintenance. 
[23:43] <ShadesEdge> Nevermind. 
[23:44] <ShadesEdge> I still can't find the page. 
[23:44] <burek> well, http://ffmpeg.org/faq.html#Can-I-use-FFmpeg-or-libavcodec-under-Windows_003f
[23:44] <burek> there is a forum
[23:44] <burek> about windows builds
[23:45] <burek> the link redirects you to http://ffmpeg.zeranoe.com/
[23:45] <burek> http://ffmpeg.zeranoe.com/blog/
[23:45] <burek> there you go
[23:47] <ShadesEdge> All I see is tutos to compile mingw, which I already have. What I need is a tuto to compile ffmpeg itself. 
[23:48] <ShadesEdge> Whatever. 
[23:48] <ShadesEdge> I just saw it. 
[23:50] <burek> well, just ./configure .. make .. make install
[23:50] <burek> type ./configure --help to see all the options
[23:50] <burek> and thats it
[23:53] <ShadesEdge> ./configure won't work except if I say to cross-compile, to compile for Windows and to compile for 64 bits
[23:54] <ShadesEdge> Still, I know that it is ./configure --enable-cross-compile --target-os=idontknow --arch=x86_64
[23:54] <ShadesEdge> There are some parts missing
[23:55] <ShadesEdge> I don't know what to write in the --target-os
[23:55] <ShadesEdge> Probably win64?
[00:00] --- Mon Dec 19 2011