December 2004 - MEncoder-users - lists.mplayerhq.hu

audio delay
by Richard Konrad 15 Dec '04

15 Dec '04

Upon encoding an avi file, I got a "chunk mismatch" error message. The result is an mpg that has an audio delay by about 1/4 second. How can I correct this? Can I re-encode it with a special setting? I've read through the manual and can't find an answer to my problem. Thanks for any help Richard

2 1

mencoder and dvdauthor
by Menuhin Saitov 13 Dec '04

13 Dec '04

Hi, I´ve did a vcd but when i rip dvd with mpeg2video,dvdauthor doesn´t want to make a dvd structure.I´ve got a message dvdauthor can´t find VOB... and crashes. Menuhin

3 4

my first bash encoding script
by ronnie escobedo 13 Dec '04

13 Dec '04

This is my first attempt at scripting in linux. I am currently using a number naming convention for all my avi files, ex: 1.avi, 2.avi ,3.avi and etc. part 1 My script allows me to select all the chapters I would like to encode and then they are automatically named. I am encoding several chapters from several dvds and storing them to one directory. My current problem is that everytime I pop in a new dvd to encode the current files are replaced by the new files I am encoding. part 2 So I would also like to have the script scan the directory where all the avi files are stored and select the highest current file and assign the number value to x. x will then increase by 1 and assigned as the file name ready for encoding. My skills are limitted. I have been working on part 2 without success. Is there someone that can offer some assistance/tips/resources. Thanks! #!/bin/bash #initialize x to 0 x=0; # input chapters to encode examples below # for encoding chapter 1 use 1-1 # for chapters 2 through 3 use 2-3 for chapter in 2-2 4-4; do # increments the value of x by 1 x=$(expr $x + 1) # mencoder commands and options mencoder -dvd-device /dev/hda dvd://1 -oac pcm -ovc lavc -lavcopts vcodec=mpeg4:vqscale=2:vhq:v4mv:trell:autoaspect -ofps 29.97 -vf crop=692:464:14:8,pp=fd -noskip -chapter $chapter -o /mnt/xdrive/video/$x.avi # end of loop done # line break echo "" echo "encoding complete" # line break echo ""

1 2

Finally it works
by Menuhin Saitov 12 Dec '04

12 Dec '04

Hallo, Finally i´ve ripped a dvd to vcd and it worked with MPlayer 1.0pre5-3.3.3,with sound of course. Menuhin

1 1

MEncoder lockups
by LavaDevil 12 Dec '04

12 Dec '04

Hello, I'm using MEncoder to try to reencode DVDs or AVIs into other formats. However, after about 400 seconds into an encoding, my machine locks up hard, and I have to reboot. Sometimes it locks hard, sometimes X exits, doing 'ls' gives a Segmentation Fault, and MEncoder gives me back an error message saying 'Floating point exception'. It's very hard to get a core dump, as the machine usually locks up with no warning or error messages. I've tried disabling APIC support in the kernel, disabling DMA for my drives, and trying a CVS snapshot of MEncoder, all with no success. I haven't found this issue on the mailing list archives, and noone on a Linux forum could provide an answer. I didn't see the lockup problem in the known bugs section of the MPlayer/MEncoder docs. I've checked my RAM and CPU temperature, nothing wrong with them. Here are my specs: Gentoo 2004.2 (kernel 2.6.9-nitro3) Glibc 2.3.3 MPlayer 20041206 CVS snapshot, compiled with MMX, MMX2 SSE, 3dnow, 3dnow2, and -O3 GCC version 3.3.3 Using an AMD Athlon XP 2000+ processor with 1024MB of RAM nVidia drivers 6229 GNU assembler 2.14.90.0.8 20040114 LD 2.14.90.0.8 20040114 Creative SB Live with ALSA 1.0.7 emu10k1 drivers The problem occurs when encoding any file (or DVD), regardless of format, and occurs no matter what options I use with MEncoder. Has anyone had this problem before?

2 2

Re: [MEncoder-users] high quality avi; correct syntax
by Adam Hemphill 11 Dec '04

11 Dec '04

You get fairly good quality that way, however, if you have the disc space and your editing software supports it you may want to do mencoder -oac pcm instead of mp3lame since PCM is higher quality than mp3. Also, the distortion you are talking about is probably interlacing in the video. There is more info about that in the docs, I can't give much more of an explanation than that adding -vf pp=fd works for me when deinterlacing. Note that deinterlacing reduces the quality of the video in some ways. I can't really give much more of an explanation. Hope that helped. >>> "ronnie escobedo" <tenminuteslater(a)hotmail.com> 12/09/04 01:14PM >>> greetings , I am new to encoding video. I however have been using Mplayer for about 2 years now. My problem: I am ripping DVD video encoding it to an avi for editting in a windows platform uisng Sony's Movie Studio. I ran into several roadblocks because the syntax I originally started using would create avi files that would work in any media player linux or windows but when placed in Movie Studio for editting no audio was present. the syntax used: mencoder -dvd-device /dev/hda dvd://1 -oac lavc -ovc lavc -lavcopts vcodec=mpeg4:vqscale=2:vhq:v4mv:trell:autoaspect -chapter 1-1 -o 01.avi I experimented with several different settings and finally found a solution that works for me. workaround: mencoder -dvd-device /dev/hda dvd://1 -oac mp3lame -lameopts br=256:cbr:mode=3 -ovc lavc -lavcopts vcodec=mpeg4:vqscale=2:vhq:v4mv:trell:autoaspect -ofps 29.97 -vf crop=692:464:14:8 -noskip -chapter 1-1 -o 01.avi Question: 1. Is this the best method for getting the hishest or best quality video/audio? My terminology is not the best and I am quickly playing catch up. An issue I am currently experiening after encoding the avi files is that anytime there is movement such as hand movement or walking there seems to be some type of distortionaround the movement. This distortion only happens with movements and other than this the video quality is great. Can someone please explain what this is and how I may fix it? ::ronnie :: : _______________________________________________ MEncoder-users mailing list MEncoder-users(a)mplayerhq.hu http://mplayerhq.hu/mailman/listinfo/mencoder-users

5 5

XVID Encoding for Philips DVP642
by Charles 11 Dec '04

11 Dec '04

Hello, I have a Philips DVP642 DVD player, and I'm trying to use mencoder to convert a bunch of movie files in various formats to play on it. I've tried using both mpeg4 and xvid like so: mencoder source.mpg -of avi -oac mp3lame -o file.avi \ -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1400:vhq:vpass=1 mencoder source.mpg -of avi -oac mp3lame -o file.avi \ -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=1400:vhq:vpass=2 mencoder source.mpg -of avi -oac mp3lame -lameopts \ abr:br=128 -o /dev/null \ -ovc xvid -xvidencopts vhq=4:pass=1 mencoder source.mpg -of avi -oac mp3lame -lameopts \ abr:br=128 -o file.avi \ -ovc xvid -xvidencopts vhq=4:bitrate=1100:pass=2 with no luck. I know it's not the burning process or the player itself, because some xvids that I downloaded from BitTorrent and burned on the same DVD play fine. The ones I converted either freeze about 30 seconds in to playing or have chunky video (it pauses and then jumps 4-5 seconds ahead) and audio sync problems. Anyone got some recommendations? I prefer to use xvid or mpeg4 for the extra compression, otherwise I'd just dump them to mpeg2, at about 2.5 times the size of the xvids. The converted files play perfectly in mplayer.

2 1

high quality avi; correct syntax
by ronnie escobedo 09 Dec '04

09 Dec '04

greetings , I am new to encoding video. I however have been using Mplayer for about 2 years now. My problem: I am ripping DVD video encoding it to an avi for editting in a windows platform uisng Sony's Movie Studio. I ran into several roadblocks because the syntax I originally started using would create avi files that would work in any media player linux or windows but when placed in Movie Studio for editting no audio was present. the syntax used: mencoder -dvd-device /dev/hda dvd://1 -oac lavc -ovc lavc -lavcopts vcodec=mpeg4:vqscale=2:vhq:v4mv:trell:autoaspect -chapter 1-1 -o 01.avi I experimented with several different settings and finally found a solution that works for me. workaround: mencoder -dvd-device /dev/hda dvd://1 -oac mp3lame -lameopts br=256:cbr:mode=3 -ovc lavc -lavcopts vcodec=mpeg4:vqscale=2:vhq:v4mv:trell:autoaspect -ofps 29.97 -vf crop=692:464:14:8 -noskip -chapter 1-1 -o 01.avi Question: 1. Is this the best method for getting the hishest or best quality video/audio? My terminology is not the best and I am quickly playing catch up. An issue I am currently experiening after encoding the avi files is that anytime there is movement such as hand movement or walking there seems to be some type of distortionaround the movement. This distortion only happens with movements and other than this the video quality is great. Can someone please explain what this is and how I may fix it? ::ronnie :: :

1 0

Recording TV with WinTV bt878
by Barton Bosch 07 Dec '04

07 Dec '04

I recently added a Hauppauge WinTV GO-Plus tuner card (model #1033) to my system and have been trying to record from it on RH9 and FC2. So far I have managed to use mplayer to watch tv with audio on my FC2 installation. However, as I later read in the FAQ, mencoder does not record any audio signal. From the other reading that I have done I gather that it is possible to record audio and video from the tv card by using the btaudio driver. Is that correct? I ask because it appears that I am at an impasse. The RH 9 kernel has the btaudio driver compiled but DAG's recent RPM of mplayer crashes when trying to watch tv from my tuner card. The FC2 installation is capable of watching tv and recording the video signal, but it appears that it was compiled without the btaudio driver. I haven't delved deeply into compiling my own kernels; it doesn't intimidate me but I would prefer to spend my time doing sound, video and graphics if possible. Would it be necessary to compile the entire kernel or can I compile just the btaudio module? Does anyone here have tv recording working with the WinTV GO-Plus and RH9/FC2? Are there any other factors that I am missing? TIA, Barton

3 10

FPS problem
by Martin Ankerl 03 Dec '04

03 Dec '04

Hi! I am trying to rip a DVD (Hero), which according to mplayer -identify is encoded with 25.0 fps. Unfortunately this number is not reliable, so I use mplayer -benchmark, and divide the frames by the time. For the DVD I get about 24.996 fps. I use this command to encode: mencoder dvd://1 -oac copy -ovc lavc -ofps 24.996 but I get a lot of frame drops. I have also tried 25.0 frames, but this too results in a lot of frame drops. How can I encode this movie correctly, without frame drops? Afterwards I want to extract the audio into an ogg file, and merge it. I am afraid that if I use noskip, that later the audio gets out of sync when merging. -- Martin Ankerl - http://martinus.geekisp.com/

3 3