[Ffmpeg-devel-irc] ffmpeg.log.20130409

[burek]

[01:04] <shambala> Hi, looking for a pointer to install ffmpeg on mac with libfreetype and libass
[01:10] <shambala> yep, I followed it: http://ffmpeg.org/trac/ffmpeg/wiki/MacOSXCompilationGuide
[01:10] <shambala> still see issues on those 2 libraries
[01:12] <llogan> there is a static build that supports those libraries: http://www.evermeet.cx/ffmpeg/
[01:13] <shambala> nice!
[01:13] <shambala> let me check on that
[01:13] <shambala> which one is stable, you know?
[01:14] <llogan> use the snapshots
[01:14] <llogan> latest
[01:15] <shambala> thanks, llogan! giving it a try now
[01:29] <shambala> yep, it works! Thanks again
[04:10] <praveenmarkandu> hi. would like to know what version of HLS encoding is supported by FFMPEG. i know it is possible to encode to a HLS compatible standard but not all the features are there.
[04:29] <cabeza> how do i set DAR in output.wmv. it's 16:9 in input.wmv but after using -c:v copy, the SAR and DAR parameters are gone from output.wmv
[04:31] <cabeza> input.wmv: Stream #0:1(eng): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 1440x1080, 6163 kb/s, SAR 4:3 DAR 16:9, 30 tbr, 1k tbn, 1k tbc
[04:31] <cabeza> output.wmv:  Stream #0:0: Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 1440x1080, 30 tbr, 1k tbn, 1k tbc
[04:33] <cabeza> tried -vf setdar=16:9 but output was the same. this is on ffmpeg-1.2 release, not the git tree
[04:37] <bourbon> -vf setdar=whatever
[04:37] <bourbon> oh, no idea
[04:37] <bourbon> I just wanna find a way to strip sar/dar out of a file because someone is giving me files with a negative sar/dar
[04:38] <cabeza> seems -c:v copy does that well enough for me, too bad it isn't what I want :>
[05:29] <praveenmarkandu> hi. would like to know what version of HLS encoding is supported by FFMPEG. i know it is possible to encode to a HLS compatible standard but not all the features are there.
[06:40] <shadowing> praveenmarkandu: If you can, use the latest branch
[06:41] <shadowing> that one for sure has HLS encoding
[07:09] <cabeza> anyone have any experience or knowledge about xine 1.2.2 playing wmv with wma audio via ffmpeg and producing horrendously loud screeching audio?
[07:10] <cabeza> i guess since ffplay and mplayer both play the files correctly, that's not really an ffmpeg problem, but was just wondering if anyone had run into this problem before. xine-lib is 1.2.2 and ffmpeg is 1.2
[10:06] <RSDRSDRSD> Why gives -b:a 64k an error and doesn´t -b:a 32k gives an error in the following http://pastebin.com/KnWkMCEB
[10:23] <rsdrsdrsd> is this a bug or not?
[10:23] <rsdrsdrsd> commandline is exactly the same and just audio bitrate is lowered
[10:23] <rsdrsdrsd> and it is working, why is that?
[11:01] <rsdrsdrsd> whys does my commandline always break?
[12:57] <gmag> hi, didn't know where else to ask. I am looking for information about how yuv420 semi-planar packs pixel data. I think I got the idea about YUV420p. But I can find no info on semi planar... Any ideas?
[12:58] <bogdanp> does anyone know why trying to scale a 1280x720 RGB32 picture to 640x360 YUM420P would output something this messed up http://i.imgur.com/30cWzRq.png ?
[12:59] <bogdanp> http://pastebin.com/raw.php?i=jujAetUb that's basically how I'm doing the scaling
[12:59] <bogdanp> sfmt is AV_PIX_FMT_RGB32 and svideo->codec->pix_fmt is AV_PIX_FMT_YUV420P
[13:12] <automatical> building widget sets out of php arraysheh
[13:12] <automatical> whoops
[13:13] <automatical> wrong window
[16:50] <msmithng> I'm looking for some advise on encoding multiple versions of the same file that are keyframe aligned&
[16:50] <msmithng> presuming that I'm leaving everything else the same, v codec and a codec& would this be a good option?
[16:51] <msmithng> ffmpeg -i blah.mp4 -c:v copy -c:a copy -x264opts open_gop=1:keyint=30:min-keyint=30:no-scenecut blah_output.mp4
[16:52] <msmithng> ffmpeg 1.2 is the version I'm cutting this with
[16:52] <msmithng> x264 is whatever macports picked up
[17:14] <Granjow> Hi there! Received a bug report with ffmpeg output saying «qscale must be > 0.0 and <= 255» where I used -qscale 0, which is recommended at various places. Under which circumstances does it have to be > 0?
[17:17] <Granjow> http://codepad.org/jZDHSXVm
[17:19] <durandal_1707> Granjow: the is not complete console output
[17:28] <Granjow> durandal_1707: Well, it is all I received. What additional information do you need for this? How is the qrange command defined? He is using ffmpeg 0.8.6 on Ubuntu 12.10.
[17:29] <durandal_1707> Granjow: your output is cut, that is unacceptable
[18:01] <misterli> My ffmpeg still require 100% of CPU load (sometimes 150%) and stuck there by processing a simple 3GP Convert to MP3. Im running Debian Linux and ffmpeg 0.7. ffmpeg -y -i target.3gp -ac 1 -acodec libmp3lame -ab 192k -f mp3 newtarget.mp3
[18:02] <misterli> (had the same issue with ffmpeg 0.9). Any idea?
[18:03] <Mavrik> uhm
[18:03] <Mavrik> that's expected?
[18:04] <misterli> It's using 100% Cpu load for hours.
[18:05] <Mavrik> a.
[18:14] <DonGnom> misterli: how long is the 3gp video?
[21:57] <jeet> using debian linux, configured my build like this:
[21:57] <jeet> cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_V4L=ON -D WITH_GSTREAMER=ON -D WITH_OPENEXR=ON -D WITH_UNICAP=ON -D BUILD_PYTHON_SUPPORT=ON -D INSTALL_C_EXAMPLES=ON -D INSTALL_PYTHON_EXAMPLES=ON -D BUILD_EXAMPLES=ON ..
[21:57] <jeet> does this mean FFMPEG won`t be the default camera handler?
[21:57] <jeet> when I tried some code it always uses gstreamer
[22:58] <obiwahn> hey
[22:58] <obiwahn> http://paste.debian.net/248553/ i get this error when building mplayer. what must be done to fix it
[00:00] --- Wed Apr 10 2013