Slackware :: Mencoder Segfaults When Converting X264 MKVs?
Jul 3, 2011
The version of mencoder I currently have installed segfaults (immediately) when you ask it to convert x264-encoded MKVs to another format. One sample command-line would be:
Code:
mencoder -nosound -ovc libdv Puella_Magi_Madoka_Magica_720p_GG_-_06.mkv -o a.avi
This produces the following output:
Code:
MEncoder 20110702-4.5.2 (C) 2000-2011 MPlayer Team
success: format: 0 data: 0x0 - 0x1c43987e
libavformat file format detected.
[Code]...
Incidentally, I'm wondering if the version of FFMpeg that the MPlayer configure script downloads might be at fault. The slightly outdated FFMpeg I installed from SBo (6.1) does not crash when converting the same file. And no, I can't use either Alien Bob's Mplayer build or the MPlayer binaries included with Slackware. Neither is built against either libdv or x264. I need libdv as an output codec.
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Apr 28, 2010
I've probably exhausted all possible ffmpeg argument combinations for encoding with a libx264 codec - none worked, the codec always either segfaults or tells me incorrect parameters. I've installed, uninstalled and re-installed all available versions of the codec - no difference. Did anyone have any luck with it? Are there any tricks or conflicts in different arguments? Does the input file have to be in any particular container/format/codec for the x264 to work on?
My examples: >ffmpeg -i video.mpg -vcodec libx264 video.mkv >... Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height >ffmpeg -i video.mpg -vcodec libx264 -b 4000 -s hd1080 -f h264 video.mkv Same error If I use any other codec, they all work fine. give a working ffmpeg arguments example,
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Oct 16, 2010
I recently upgraded to Maverick and am loving it. Converting over my various scripts to work on the new box I notice that my video trascoding script, which uses mencoder to re-encode video as h264, now does not work.
Code:
mencoder $inpfile -oac mp3lame -lameopts vbr=3:q=3 -ovc x264 -x264encopts crf=22:threads=auto:subq=4:bframes=2:b_pyramid:weight_b:turbo=1 -ofps 25 -o $outfile
For a long time this has worked just fine but the command basically bombs out every time with
Code:
FATAL: Cannot initialize video driver.
I tried using the medibuntu mplayer/mencoder but still no dice.
Does anyone know how I can get this important functionality back?
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May 22, 2010
I recorded a TV show on my pc using mythbuntu software (ubuntu version of mythtv). It cut out all the commercials and then transcoded it to a nice 40 min nuv file that I put onto a usb thumb drive. Now it's portable and vlc can play the file...on a pc. I want to burn it onto a DVD so I can put it in any NTSC DVD player. Also, the file was recorded at 480x480 and I want to change the size to widescreen (16:9). Additionally, the top of the screen recorded a thin horizontal line of junk that needs to be deleted.
Now, I've googled around and found this line in ffmpeg that should work:
ffmpeg -i V-RedSky.nuv -croptop 4 -y -target ntsc-dvd -sameq -aspect 16:9 RedSky.mpg
The new 16:9 video size is great, the annoying horizontal line got cropped, and I got a nice mpg file...but the audio is now out of sync. I tried ffmpeg with fewer options and the audio still got out of sync.
So, I'm thinking I should try different software. Maybe mencoder. How could I put the above ffmpeg options into mencoder?
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Jan 9, 2011
I'm trying to convert my screencast to an .avi file, but when I open it... the commentary track is waaay out of sync. No matter which codec I use, it will not stop dropping frames!
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Jun 10, 2010
I'm trying the DVD authoring stuff on Slackware, so okay I have downloaded Tovid along with its dozens of dependencies that has their own dependencies and so on...Now, one of the dependency is x264 (for encoding H264/AVC video streams). I already have alien bob's VLC from the uk site (restricted packages) and I've read on his blog (if I'm not mistaken) that it has the H264 capability (don't know how to describe it ).Is there any chance that it will conflict with this x264 library?
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Jan 29, 2010
How users to install the latest svn versions of x264, ffmpeg and mplayer. Primarily, this is important for users who rip movies from dvds.
How do I perform the same tasks using sbopkg? I believe some compilation options must be changed to reflect the svn changes.
Has anyone done this before? Are the steps important when using slackware 13 x86_64?
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Feb 4, 2010
I've found what seems to be a reproducible problem with 'ash' on slackware64-current (updates to and including Jan 31st)
Open a console
ash <enter>
type 2 or more characters, doesn't matter what.
press backspace
press backspace
**seg fault**
occurs under xterm, konsole, gnome-terminal in both kde4 and xfce and on a virtual console.
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May 16, 2010
New install slackware64 13.0. Sites that cause it to segfault are simple ones - gmail (2 seconds after I get past the sign in stage, and before I even open any email. This one also
www.channel4.com/programmes/4od.
I have done the obvious stuff - checking for missing libs with ldd, finding them, etc. Disks are 1-2 years old (ext3) and well checked, but this install has not been lived in yet. Plugins installed are: java 1.6.0_16; Flash 10.0 r45; SVG-2.26. Kernel is 2.6.33.2, made with 'make oldconfig from a very satisfactory 2.6.30.5 kernel which was faultless for some time.
The box is all-amd/ati HP6715S, with RS690 video and northbridge, sb600 southbridge. and a twin turion 2 Ghz. It is using the recent OSS xf86-video-ati drivers. The only strange Mozilla error was between 4th and 5th crash this session when it said "Input/Output Error". Otherwise the error shows as line 131 of run-mozilla.sh - the 'finally start the binary' routine.
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Jan 2, 2011
Running slackware-current 32bit. I use digikam-1.7.0, kipi-plugins-1.7.0, and ufraw-0.17 which are all built using the sbo scripts from 13.1 repo. All the above work fine with lensfun-0.2.3 built from sbo, but trying to update lensfun to 0.2.5 causes segfaults in digiKam and ufraw.
Anyone else seen this and is there a fix? Seems to be caused by a change in lensfun between versions, but I think it's beyond me to sort on my own. Lensfun-0.2.5 seems to build fine without errors, but I believe there were warnings with respect to makedep. Digikam and ufraw locate the lensfun libraries during the build. Ufraw segfaults on startup and digikam segfaults when the auto lens correction tool is selected from the menu. I know none of these versions are officially supported either alone or in -current,
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Jun 5, 2010
Upgraded from 13.0 to 13.1 following the instructions. Downloaded latest nvidia package (NVIDIA-Linux-x86-96.43.16-pkg1.run) for my geForce4 MX 4000. Compiled and installed new module (old one was 96.43.13).
Xorg fails to start with this:
Code:
X.Org X Server 1.7.7
Release Date: 2010-05-04
X Protocol Version 11, Revision 0
Build Operating System: Slackware 13.1 Slackware Linux Project
Current Operating System: Linux mercury 2.6.33.4-smp #1 SMP Wed May 12 21:39:37 CDT 2010 i686
Kernel command line: BOOT_IMAGE=Linux ro root=805 vt.default_utf8=0 3
Build Date: 05 May 2010 01:54:53AM
Current version of pixman: 0.16.6
Before reporting problems, check [URL]
to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
(++) from command line, (!!) notice, (II) informational,
(WW) warning, (EE) error, (NI) not implemented, (??) unknown.....
Backtrace:
0: /usr/bin/X (xorg_backtrace+0x3b) [0x80a1e6b]
1: /usr/bin/X (0x8048000+0x57b75) [0x809fb75]
2: (vdso) (__kernel_rt_sigreturn+0x0) [0xffffe40c]
Segmentation fault at address 0xc
Fatal server error:
Caught signal 11 (Segmentation fault). Server aborting
The "nv" driver works.
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Jul 30, 2011
I heard Slackware 13.37 came with XFCE and KDE, but uses KDE as the default. I've used KDE as the default on Debian, so I'm wondering how I switch to XFCE on Slackware.
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Oct 9, 2010
So I downloaded the HD version of Person of Interest: [URL] It has h264 video and AVC audio contained within a Matroska file. For some reason I can't get it to play in either Totem or mplayer, even though I've been able to play other Matroska files fine in both of them. Totem does nothing but display a black window. gmplayer displays a blue screen and there's a silouette where the control buttons are supposed to be. Also it takes about 20 seconds to close it. When I try to get the properties on it, it says "Creating properties window. You can cancel this operation by clicking cancel." and it won't show the properties no matter how long I wait.When I try to run it in mplayer from the command line, it says a bunch of these:
[h264 @ 0xb40fa0]AVC: nal size 29922113
[h264 @ 0xb40fa0]no frame!
Error while decoding frame!
All at the same hex location, but with seemingly random "nal sizes." Then it ends with this: Too many audio packets in the buffer: (4097 in 1648030 bytes).Maybe you are playing a non-interleaved stream/file or the codec failed?For AVI files, try to force non-interleaved mode with the -ni option.
A: 0.1 V: 0.0 A-V: 0.107 ct: 0.000 0/ 0 ??% ??% ??,?% 421 0
Exiting... (End of file)
Running Debian 5.0.6 and MPlayer dev-SVN-r26940. See if you can run it, it's available under a Creative Commons license from the link above.
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Nov 20, 2010
I've been searching and haven't had any luck so far so I figured someone here's gotta know the answer to this. I'm troubleshooting why some of my MKV files will play audio on my WDTV and others won't. I'm suspecting it's got something to do with the audio codec inside the MKV. However, I don't know how to view what codecs are being used inside the MKV. Does anyone know of a good program or command I can run to view what's inside of the MKV
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Jan 25, 2010
Just wondering whether there are plans to upgrade the x264 in the rpmfusion repo to a more recent build. These are the current ones in rpmfusion and what I have installed. Build date is October 2009.
Code:
x264.x86_64
0.0.0-0.24.20090319gitc109c8.fc11 @rpmfusion-free
x264-devel.x86_64
0.0.0-0.24.20090319gitc109c8.fc11 @rpmfusion-free
x264-libs.x86_64
0.0.0-0.24.20090319gitc109c8.fc11 installed
Available Packages x264-devel.i586 0.0.0-0.24.20090319gitc109c8.fc11
rpmfusion-free
x264-libs.i586
0.0.0-0.24.20090319gitc109c8.fc11
rpmfusion-free
Unfortunately things like h264enc and I'm sure others have moved on ahead and the dependencies on the x264 libraries means things like ffmpeg, mencoder, gstreamer, vlc, avidemux are having issues. With major dependencies it's difficult to upgrade the individiual components. A couple of examples, ffmpeg requires a newer build as it has some issues with MS's dvr-ms format. Apparently it was fixed in a newer release of the code. Another is some of the encode parameters in x264 being used in h264enc such as "weightp", "mbtree" which appear to be only supported in newer versions of the x264 libraries. Any chance that this is being looked at and newer and more recent builds of x264, and then I suspect with mencoder, ffmpeg etc...?
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Apr 5, 2010
I've been trying to convert video files to play on a psp, I used to use this command
Code:
ffmpeg -y -i inputfile -acodec aac -ab 128k -ar 48000 -ac 2 -s 480x272 -vcodec h264 -b 384k -coder 1 -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -subq 5 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b_strategy 1 -level 21 outputfile.mp4
[Code]....
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Nov 21, 2010
I got a strange problem. I tried to install x264. When run sudo ./configure --enable-shared, it gave: Found no assembler
Minimum version is yasm-0.6.2
But I already installed yasm-1.0.1. Why can it not find yasm?
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Mar 1, 2011
As I understand (and remember) debian does not package x264 with its ffmpeg. [I say remember because I have a debian-multimedia line in my sources.list that I believe I added when I wanted a x264 enabled ffmpeg]
Is this status still the same? Do we still need to compile ffmpeg by hand if we want x264?
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Apr 27, 2010
I'm having, namely building mplayer with x264 support. If I do ./configure on it's own it builds fine without x264, with ./configure --enable-x264 I get this with make
Code:
libavcodec/libavcodec.a(libx264.o): In function `X264_frame':
libx264.c:(.text+0x1d9): undefined reference to `x264_encoder_encode'
libavcodec/libavcodec.a(libx264.o): In function `X264_close':
[Code]....
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Jan 3, 2010
I have a load of XViD videos and I want to re-encode them into x264 - when I say a load, I mean over 300, anyone have any programs they reccomend to do it?I want to make them into those "future-sized movies" (700mb --> 300mb, 170mb --> 95mb, 350mb --> 150mb), what settings should I use? I want to keep the quality of the originals intact, along with the video sizes if possible, but if not, I don't really mind, just make them smaller. Here are the settings some people use in windows:oh yeah, one last thing - fast encoders please, I know it'll take a good while, but I want it to take as little time as possible please
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Jun 15, 2010
I have been working on vlc (windows) and now i want to use the same in linux...so ma trying to compile it in linux..... i need ffmpeg functionality and others as such...so please provide me with the complete link and order so as where to fetch the source code and to compile....i have done googling and found lots of tutorials and most of the are confusing and not clear......and i tried doing them and am now confused(whether they are compiled or not) cos when i try to instll them it says already exists and when i try to use the functionality it says canot transcode ffmpeg doesnt exitst.....I am badly need of vlc transcoding options. Am using ubuntu 10.
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Jan 12, 2015
I use ffmpeg to covert video files for the net.
Code: Select allffmpeg -i infile -vcodec libx264 -vpre ipod640 -b 250k -bt 50k -acodec libfaac -ab 56k -ac 2 -s res.mp4
which works good. I was wondering if I could use larger resolution presets, but
find /usr -iname '*.ffpreset' only gives
#/usr/share/ffmpeg/libvpx-360p.ffpreset
#/usr/share/ffmpeg/libvpx-1080p.ffpreset
#/usr/share/ffmpeg/libx264-ipod320.ffpreset
#/usr/share/ffmpeg/libvpx-1080p50_60.ffpreset
#/usr/share/ffmpeg/libx264-ipod640.ffpreset
#/usr/share/ffmpeg/libvpx-720p50_60.ffpreset
#/usr/share/ffmpeg/libvpx-720p.ffpreset
with only 2 presets for libx264.
I installed ffmpeg from deb-multimedia. Is there a package which provides further preset files? There should be e.g. hq, max etc..
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Apr 10, 2010
I'm using openSUSE 11.2 64bit in Dell E6400 with Intel video chipset. I can play x264 720p files without any problems in Windows 7, but in openSUSE, I could play it in Totem, but it is very slow (lots of stopping).
In addition, in songbird, if I use the mediaflow add-on,the scroll becomes really sluggish.
In general, I feel like openSUSE is showing less ram usage but higher CPU usage than Windows 7. Is my video card driver is messed up? I really like openSUSE a lot but so it is disappointing....
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May 8, 2010
I have been using Avidemux to encode edited video using x264 and the mp4 container for most of my videos. My PCs are not new, using single-core AMD Athlon processors.
In 9.04 and 9.10 (Linux Mint), encoding speeds ranged from 7 to 10 frames per second. In 10.04 these dropped down to less than 2 frames per second.
I booted back into Linux Mint 8 (9.10) and the same video encoded at the previous 7 to 10 fps.
I tried with other videos in different formats (mpeg2 and VOB). The results were the same - 10.04 was extremely slow encoding x264 but Mint 8 was "normal" at 7 to 10 fps.
With a dual-core notebook, however, the encoding speeds ran at 8 to 14 fps in 10.04.
Was 10.04 optimized for dual and multi-core at the expense of single-core? If so, is there a way to restore "single-core optimization"?
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May 13, 2011
I am trying to compile x264 but ./configure returns just Quote: No working C compiler found. Yes, I have installed build-essentials and yes, I have installed gcc Already tried update and upgrade... so I dont know whats wrong my c++ compiler works normally.
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Nov 23, 2010
My system is CentOS 5.5 x86_32, and I am currently trying to get the x264 video encoder to work and to read libav* input, like elementary H.264 streams. All the prebuilt x264 binaries seem to come without lavf and/or ffms support, and I was unable to build ffmpeg/ffmpegsource on my system. So these x264 versions only support RAW YUV 4:2:0 input, which is of no use to me. I would like to use the x264 binary itself, as it seems that ffmpeg+libx264 does not have option mappings for all the options I could give to x264 directly.
Is there any pre-built x264, that supports lavf/libavcodec for reading H.264 input? Or is there a good, working guide on how to build that on CentOS 5? When trying to build latest ffmpeg (trying to get ffms/lavf dependencies on my system), it tells me, that my "pkg-config" is too old, and that I should set FFMPEG_CFLAGS and FFMPEG_LIBS to work around the issue. No idea what I should do here.
Then, when trying latest ffmpegsource (again, to get the ffms/lavf deps satisfied), it tells me I do not have libx264. Maybe here my version is too old or something. I installed libx264_98, maybe wrong version.
Ah, the output of x264's configure script looks like this:
Platform: X86
System: LINUX
asm: yes
avs: no
[Code].....
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Jan 25, 2010
So for the last, oh, three or four hours now, I've been trying to get videos to play properly in Ubuntu. I have the default player, I have vlc, I (apparently) installed mplayer, but it won't play anything at all.
I was having horrible screen tearing with standard definition .avi's in vlc, fixed that by setting vsync in catalyst control center to always on or whatever it is.
Now, I have tried to run a 720p x264 video. It PLAYS, but not well. Audio is fine, however video is all jerky in VLC, and in Totem it's just a mess of screen tearing (although the video does no jerk on that player).
I have just spent HOURS trying to get VIDEOS TO PLAY. This makes no sense. Playing a video should be the simplest thing in the world for any OS to do, but with Ubuntu it is like pulling teeth. I have NEVER been so frustrated while using a computer. What is going on here?
BTW, I installed every single thing needed to use mplayer but it still does not work. The player comes up but will not play any type of file.
My system specs:
2.2Ghz dual core (intel)
3gb ram
1GB radeon hd 4650 vid card
asus ipibl-lb mobo
I was really enjoying Ubuntu until I got around to trying to watch some videos. Now I am maybe minutes away from going back to vista. At least on there I can watch full 1080p videos if I want with no problems.
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May 9, 2010
My totem crashes after several seconds of playing x264 .mkv files. Plays everything else fine (and my HD content better than .vlc so I'm not interested in switching). In terminal, the only output I get is 'Aborted'.
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May 29, 2011
I am trying to compile OpenCV 2.0 with ffmpeg (with x264) support on my Ubuntu 11.04 64-bit machine. (Since I want to use the binaries provided by other developers, I have to use opencv 2.0 version)
I followed the guide from: [URL] to compile x264 and ffmpeg manually, and succeeded.
Then I followed the guide in the INSTALL file provided by the OpenCV 2.0 package. I use CMake to configure and generate them, and use "make" command to try compiling. However, I got the following error report, which haunted me for almost half a week.
Code:
Linking CXX static library ../../lib/libhighgui_pch_dephelp.a
[ 71%] Built target highgui_pch_dephelp
Scanning dependencies of target pch_Generate_highgui
[ 71%] Generating _highgui.h
[ 71%] [COLOR="rgb(65, 105, 225)"]Generating
[Code].....
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Apr 28, 2010
So MPD keeps segfaulting everytime it tries to play anything.I tried compiling a version from the MPD site, but that couldn't even see my music for some reason. Same user running MPD, same permissions on the files... I'd really like to get MPD working again, but it keeps segfaulting with this:
Code: nas kernel: [161048.253573] mpd[22957] general protection ip:b6efc1b5 sp:b53e1850 error:0 in libavcodec.so.52.20.1[b6ab4000+52b000]
I wiped my server recently because of all the custom stuff I had installed, and now MPD won't play music .
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