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

Calling mencoder via PHP script
by elfumata 30 Nov '04

30 Nov '04

Hi all, I get the following error in apache error log file, when run a script in PHP that call 'mencoder'. The script is... shell_exec("/usr/local/MPlayer-1.0pre5/bin/mencoder -audiofile sound.mp3 -ofps 25 -o sound.avi -oac mp3lame -ovc xvid -xvidencopts bitrate=300 sound.3gp") If I execute the same command /usr/local/MPlayer-1.0pre5/bin/mencoder -audiofile sound.mp3 -ofps 25 -o sound.avi -oac mp3lame -ovc xvid -xvidencopts bitrate=300 sound.3gp out of PHP, apache... in other words 'in shell/commands line' It runs OK, It create my avi file /---------------------------------- The error is ..... get_path("config") problem Cannot find codec matching selected -vo and video format 0x33363273 /---------------------------------- I have the file 'codecs.conf' properly located because when run the command via shell I get... Reading /lolo/.mplayer/codecs.conf: 73 audio & 180 video codecs 'lolo' is the same user which apache runs I modified codecs.conf with ... 'format 0x33363273'.... in order to create avi files /-------------------------------- videocodec ffh263 info "FFmpeg H263+ decoder" status working fourcc H263,U263,h263,X263 fourcc viv1 h263 driver ffmpeg dll h263 out YV12,I420,IYUV format 0x33363273 /-------------------------------- /--------------------------------------------------------------------- All mencoder output in apache error log file is ...... File not found: 'frameno.avi' Failed to open frameno.avi get_path("config") problem MOV: unable to determine audio samplerate, assuming 44.1kHz (got 50) mpg123: Can't rewind stream by 229 bits! Cannot find codec matching selected -vo and video format 0x33363273 /--------------------------------------------------------------------- I use: - PHP4 - apache-1.3.29-1 - Mandrake 10 Thank you very much in advance ---Publicidad-------------------------------------------------------- Nuevo Messenger Multimedia de Yahoo ¡ Descárgalas Gratis ! http://tracker.tradedoubler.com/click?p=21420&a=1038692

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Processing intelaced videos.
by Michal Schulz 29 Nov '04

29 Nov '04

Hello. I'm trying to process interlaced images in such a way, that they could be nicely compressed using mencoder, but then saved on DVD as interlaced movies again. I really do not want to deinterlace them. I have found out, that if I would encode the video captured from my TV card (bt878 based) without any processing, it would compress badly. Therefore currently I use following mencoder options (plus some regarded to audio/video codec): mencoder -tv driver=v4l:input=1:width=720:height=576:forceaudio:amode=1:forcechan=2 -vf il=d:d -o film.avi tv:// Here I split the interlaced video in such a way, that two half-images are separated and better compressed. The problem raises, when I try to feed mpeg2enc with such a video: mplayer -nosound -noframedrop -noautosub -vo yuv4mpeg -vf il=i:i file.avi & cat stream.yuv | mpeg2enc -I 1 ..... mplayer generates interlaced video but the stream.yuv doesn't contain information about it. mpeg2enc sees the input stream as non-interlaced and complains that chroma information will be damaged. How can I tell mplayer/mencoder pair to generate the yuv stream in interlaced mode? regards, Michal Schulz. -- Geschenkt: 3 Monate GMX ProMail + 3 Top-Spielfilme auf DVD ++ Jetzt kostenlos testen http://www.gmx.net/de/go/mail ++

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Performance issue
by Christian P 29 Nov '04

29 Nov '04

Im trying to encode a video source from a Winfast 2000 deluxe card using the examples in the documentation but all of them seem to be too much for my CPU and mencoder starts dropping frames. I checked that when I start mencoder, the CPU usage goes almost to 100%. Can anyone give me a hint on how to be able to do this? I'm not too fussed about quality, VCD style would be good enough. This is my setup: Pentium III 650mhz 256mb RAM (not running X, so swapping is not the problem) Redhat 9. Kernel 2.4.20 (recompiled). Using gbuffers=32 in the bttv driver. Sblaster Live! Nvidia GeForce4 MX 440 AGP. MPlayer 1.0pre5 Thanks Christian

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Performance issue
by Christian P 29 Nov '04

29 Nov '04

Im trying to encode a video source from a Winfast 2000 deluxe card using the examples in the documentation but all of them seem to be too much for my CPU and mencoder starts dropping frames. I checked that when I start mencoder, the CPU usage goes almost to 100%. Can anyone give me a hint on how to be able to do this? I'm not too fussed about quality, VCD style would be good enough. This is my setup: Pentium III 650mhz 256mb RAM (not running X, so swapping is not the problem) Redhat 9. Kernel 2.4.20 (recompiled). Using gbuffers=32 in the bttv driver. Sblaster Live! Nvidia GeForce4 MX 440 AGP. MPlayer 1.0pre5 Thanks Christian

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greetings & question about rm2mp3
by Jiří Mothejzík 28 Nov '04

28 Nov '04

Hallo, firstly I have one bug for report - when I wanted to subscribe by clicking on recieved link, there was a "page doesn't exist" error. The link was http://mplayerhq.hu/mailman/confirm/mencoder-users/aa4b5bae9062b568d6beaa45… . And now my question - is it possible to use mencoder to recode sound files? I have some very nice language courses in real audio. But I'd like to burn them and play in my stereo (with mp3 support). So what I need is to convert all these files into mp3 files with similat quality. I downloaded mplayer source and some codecs, putted codecs in correct directory and compiled mplayer. But it seems to me that there are two problems (one wouldn't be enough, sure): - "Video stream is mandatory!" - i don't have mp3 codec for encoding..? When I try mplayer 01.ra, it seems it works (computer is my fileserver, it doesn't have any graph. card nor sound card, but there is status message saying "playing" and three counters running), so I think decoding real audio is not the problem, problem is with encoding it with mp3 codec. Any ideas, please? Thank you, JiMo:) Uncutted output: (by the way, make install created dirs as /usr/local/share/mplayer/font and /usr/local/etc/mplayer/, but left them empty) ================================================ gw:~/Modal_Cafe# mencoder 02.rm -o 02.mp3 MEncoder 1.0pre5-3.3.4 (C) 2000-2004 MPlayer Team CPU: Intel Pentium P54C 105.8 MHz (Family: 5, Stepping: 6) Detected cache-line size is 32 bytes CPUflags: Type: 5 MMX: 0 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0 Compiled for x86 CPU with extensions: Reading /root/.mplayer/codecs.conf: Can't open '/root/.mplayer/codecs.conf': No such file or directory Reading /usr/local/etc/mplayer/codecs.conf: Can't open '/usr/local/etc/mplayer/codecs.conf': No such file or directory Using built-in default codecs.conf. File not found: 'frameno.avi' Failed to open frameno.avi Reading config file /root/.mplayer/mencoder: No such file or directory font: can't open file: /root/.mplayer/font/font.desc font: can't open file: /usr/local/share/mplayer/font/font.desc success: format: 0 data: 0x0 - 0x89D84 REAL file format detected. ======= WAVE Format ======= Format Tag: 26995 (0x6973) Channels: 1 Samplerate: 16000 avg byte/sec: 16000 Block align: 320 bits/sample: 16 cbSize: 10 Unknown extra header dump: [0] [0] [6] [0] [3] [0] [40] [1] [0] [0] =========================== Not audio/video stream or unsupported! Video stream is mandatory! Exiting...

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Re: [MEncoder-users] mencoder dedicated box
by jago25_98 26 Nov '04

26 Nov '04

(Questions to focus on because they're probably quick to answer have a * next to them) I know nothing about the subject really but maybe I can break the question down into smaller sections. I suggest looking at articles dedicated to choosing hardware for compiling. They may help you answer questions such as: - how important is RAM; spend more on CPU? *- how much CPU cache to use? (faster CPU or more L2 cache?) - CPU - intel Xeon, AMD64 or P4? Now mplayer specific questions to ask this list after skim reading the docs and probably news on mplayer site: - are 64 bit optimisations included in mplayer? just a case of adding GCC flags or does mplayer need extra code? (or has it already been dome?) - hard drives; how much will SATA impact on CPU compared to SCSI (wouldn't use UATA for this task, that I am sure of) - mecoder benchmarks would be most useful - that way you can divide the benchmark score by the price of the hardware to get true value for the task. If there's a bootable cd distro with mencoder and ability to benchmark I could benchmark any spare hardware that passes through my hands over lunchtimes maybe. I reckon onboard Gigabit PCI cards/onboard gigabit/cat6 or DVD rewriter (£12 single layer for burner now!) in box to think about. If you're doing it on the cheap as I expect I suggest just spending all the money on the most cost efficient CPU for the task (can't recommend which as I don't know how important cache is for mplayer), with 2x256mb sticks of fastest DDR you can, dvd burner to save network transfers but with cheapest everything else. And finally... - does/can a graphics card speed mencoder speed? (I don't even know this!)

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mencoder dedicated box
by kor＠li.pl 25 Nov '04

25 Nov '04

Howdy, I would like to build a mencoder dedicated box for a friend doing a lot of movie compression. It's going to be a FreeBSD box using mencoder. I have not been using mencoder much so my question is: what should I put inside so that it allows (more or less) real time compression from DV to mpeg4. I'd be very grateful ifor any hints. So tell me what gear you use and what are the effects. I heard that some windows combine running on 1.2GHz Athlon, 256MB need 4 hours on average to cope with 1 hour movie. I sincerely hope that mcoder can do any better. Thanx in advance. Radek Kotowicz.

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3gp sound (0x726D6173)
by Sergey Smirnov 22 Nov '04

22 Nov '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Is it possible play GSM phone video+audio with mplayer? Video works fine. But audio does not. Cannot find codec for audio format 0x726D6173 - -- Sergey Smirnov hkp://wwwkeys.pgp.net -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFBofQGTW1qobfmhlsRAijzAJ4rAQsdYR5glUnSr22k/8C8hJS2jwCgo79y EaOAtQI429VwhCqnuiBy6dk= =IWAj -----END PGP SIGNATURE-----

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Audio misaligned when encoding segments with -ss/-endpos
by Attila Szegedi 21 Nov '04

21 Nov '04

Hi folks, I'm using mencoder to convert MPEG2-encoded shows I capture from TV through a Hauppauge PVR-250 card to DIVX, with commercials skipped (I'm archiving them so I don't want the space taken up). To skip commercials, I'm cutting two parts from the encoded show (before the commercial block and after the commercial block - luckily the channels I'm recording from usually only put a single block of commercials in the show), and concatenate the parts together. I'm running the whole thing on a Windows 200 box, using the cygmp port available from <http://armory.nicewarrior.org/projects/cygmp/> The basic script I use is like what you see below. It's invoked with following parameters: %1 the name of the .mpg file as produced by the Hauppauge card %2 start of the first segment %3 duration of the first segment %4 start of the second segment %5 duration of the second segment ------------- rem two-pass encode the show "c:\program files\mplayer\mencoder" -ovc lavc -lavcopts vcodec=mpeg4:vpass=1:vbitrate=1300 -oac mp3lame -lameopts vbr=3 -vf pp=lb -o p.divx "%1" "c:\program files\mplayer\mencoder" -ovc lavc -lavcopts vcodec=mpeg4:vpass=2:vbitrate=1300 -oac mp3lame -lameopts vbr=3 -vf pp=lb -o p.divx "%1" rem delete original file del "%1" rem cut the two parts "c:\program files\mplayer\mencoder" -ss %2 -endpos %3 -ovc copy -oac copy -o p1.divx p.divx "c:\program files\mplayer\mencoder" -ss %4 -endpos %5 -ovc copy -oac copy -o p2.divx p.divx del p.divx rem concatenate the parts copy p1.divx /B + p2.divx /B nc.divx /B del p1.divx del p2.divx "c:\program files\mplayer\mencoder" -noidx -ovc copy -oac copy -o "%~1.divx" nc.divx del nc.divx ------------- (Yes, I know about named pipes. No, I wasn't able to get them to work...) The part that's troubling me is under the comment "cut the two parts". The result of the second cut will have audio misaligned - it's coming one second too early. I guess the first part also has audio coming early too, but because of a relatively small offset (3-4 minutes into the show), it's not noticable, whereas with offset of the second part (usually about 35 minutes into the show) it is. I've tried using "-audio-delay 1" on the second segment, but it looks like it's being lost (since it's a simple header param) when I concatenate the parts. Any advice? Preferrably one that can execute in a batch operation - I don't want to do the cutting interactively... I have searched the archives, but except for finding out in them that others also experienced inaccuracies with -ss on MPEG2 files[*], I found nothing that'd help me... Any pointers appreciated. TIA, Attila. -- home: http://www.szegedi.org Visit Szegedi Butterfly fractals at: http://www.szegedi.org/fractals/butterfly/index.html [*] I tried cutting and encoding the MPEG2 stream in one operation, but -ss was very innacurate; my measurements showed it's late by a factor of between 1.18 and 1.22, depending on the file. That's why I first encode the whole stuff (commercials included) to DIVX and cut the DIVX; -ss seems to be precise on DIVX. -- home: http://www.szegedi.org Visit Szegedi Butterfly fractals at: http://www.szegedi.org/fractals/butterfly/index.html

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mplayer + audio boast
by Joshua Shriver 16 Nov '04

16 Nov '04

Greetings, As a long time mplayer user... mostly using the mplayer-port to OS X. I've become spoiled by iTunes and how it can "boast" the audio via it's equalizer. Is there anyway/hope that mplayer can create an equal "boaster" for audio? I have a couple vid's that even with full system up and mplayer volume up aren't that strong. While with iTunes I know it's possible to boast the audio level up.... without having to re-encode the video with mencoder with audio boast... can it be done in mplayer in realtime w/o re-encoding? IF not is this something the devs are considering? -Josh

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