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

reencoding from a mkv with subtitles
by Marc Cousin 22 Jan '05

22 Jan '05

Hi, I'm trying to convert a mkv with subtitles, to a simple xvid avi, with the subtitles directly displayed in the movie. To do this, I've tried : mencoder -slang fre movie.mkv -oac mp3lame -lameopts cbr:br=128 -ovc xvid -xvidencopts vhq=1:chroma_me:hq_ac:bitrate=1500 -o movie.avi The problem is that the subtitles aren't correctly displayed (bottom of it is displayed randomly on the screen, and distorted), on the encoded avi. Of course, the movie plays ok with mplayer and subtitles ... Here is the output from mencoder about the mkv : [mkv] Found the head... [mkv] + a segment... [mkv] /---- [ parsing seek head ] --------- [mkv] /---- [ parsing seek head ] --------- [mkv] \---- [ parsing seek head ] --------- [mkv] /---- [ parsing cues ] ----------- [mkv] \---- [ parsing cues ] ----------- [mkv] \---- [ parsing seek head ] --------- [mkv] |+ segment information... [mkv] | + duration: 1145.002s [mkv] |+ segment tracks... [mkv] | + a track... [mkv] | + Track number: 1 [mkv] | + Track type: Video [mkv] | + Codec ID: V_REAL/RV40 [mkv] | + CodecPrivate, length 34 [mkv] | + Default duration: 40.000ms ( = 25.000 fps) [mkv] | + Default flag: 1 [mkv] | + Language: eng [mkv] | + Video track [mkv] | + Pixel width: 640 [mkv] | + Pixel height: 480 [mkv] | + Display width: 640 [mkv] | + Display height: 480 [mkv] | + a track... [mkv] | + Track number: 2 [mkv] | + Track type: Audio [mkv] | + Codec ID: A_AAC/MPEG2/LC/SBR [mkv] | + Default duration: 42.667ms ( = 23.438 fps) [mkv] | + Default flag: 1 [mkv] | + Language: jpn [mkv] | + Audio track [mkv] | + Sampling frequency: 24000.000000 [mkv] | + Channels: 2 [mkv] | + a track... [mkv] | + Track number: 3 [mkv] | + Track type: Audio [mkv] | + Codec ID: A_AAC/MPEG2/LC/SBR [mkv] | + Default duration: 42.667ms ( = 23.438 fps) [mkv] | + Default flag: 0 [mkv] | + Language: fre [mkv] | + Audio track [mkv] | + Sampling frequency: 24000.000000 [mkv] | + Channels: 2 [mkv] | + a track... [mkv] | + Track number: 4 [mkv] | + Track type: Subtitle [mkv] | + Codec ID: S_VOBSUB [mkv] | + CodecPrivate, length 348 [mkv] | + Default flag: 1 [mkv] | + Language: fre [mkv] | + a track... [mkv] | + Track number: 5 [mkv] | + Track type: Subtitle [mkv] | + Codec ID: S_TEXT/UTF8 [mkv] | + Default flag: 0 [mkv] | + Language: mis [mkv] |+ found cluster, headers are parsed completely :) [mkv] Track ID 1: video (V_REAL/RV40), -vid 0 [mkv] Track ID 2: audio (A_AAC/MPEG2/LC/SBR), -aid 0, -alang jpn [mkv] Track ID 3: audio (A_AAC/MPEG2/LC/SBR), -aid 1, -alang fre [mkv] Track ID 4: subtitles (S_VOBSUB), -sid 0, -slang fre [mkv] Track ID 5: subtitles (S_TEXT/UTF8), -sid 1, -slang mis ==> Found video stream: 1 [mkv] Aspect: 0.000000 [mkv] Will play video track 1 ==> Found audio stream: 2 [mkv] Will play audio track 2 [mkv] VobSub size: 720x576 [mkv] VobSub forced subs: 0 [mkv] VobSub palette: 4af05a,81c44a,a3b833,c5a41f,a07c3d,7c6455,952336,b210a6,375be0,219e9b,49d58d,fe8080,b28080,7f8080,4d8080,008080 [mkv] VobSub custom colors: OFF [mkv] VobSub colors: 000000,000000,000000,000000 [mkv] Will display subtitle track 4 From what I see, maybe the problem simply comes from the difference in resolutions from the video stream (640x480) and the vobsub (720x576). But then if I'm right why does mplayer manage to display them correctly and not mencoder ? Cheers Marc Cousin -- BOFH Excuse #151: Some one needed the powerstrip, so they pulled the switch plug.

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mencoder and divx 5
by ronnie escobedo 03 Jan '05

03 Jan '05

I have been experienceing some problems with some of the avi files I have encoded. I am using -ovc lavc (divx) for encoding avi files some options I use are trell, autoaspect, deinterlacing, and cropping. Can't recall the exact syntax at the momoment. On Mplayer linux/windows the avi files play fine. When I play the avi files in windows media or any other media player includding my video editor I experience problems with my video.The best way I can describe the problem is that the video sort of looks like when your watching a satelite feed and temporarily loose signal. I get small blocks of grey, blue, green, and or red over the video. THis is always for only a few seconds once or twice per video or avi file. Windows medida player and my video editor are using divx 5 for decoding. I have used Gspot to try and diagnose the problem and have noticed that the avi files I have encoded in mencoder/linux are divx 4. When I encode on windows using Dvd Ripper/divx 5 I don't experience the problem. However I do not like to encode on my windows system and prefer linux. I have tried removing divx 5 on windows and reinstalling it without success. Has anyone ever experienced a problem similar to this? If so how did you resolve? How can I specify mencoder/linux to encode using divx 5? I have read and studied the man page but quite haven't been able to figure it out. I have divx4linux 5x on my sytem. I can only speculate that the problem is the difference between divx 4 and 5. But this truly shouldn't be the problem since theoreticallly divx 5 should play divx 4. Right? Thanks!!!

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FreeBSD + bt878 (bsdbt848) Resolution (and a bug or two)
by Allen 26 Dec '04

26 Dec '04

Just curious. I've done something odd here, and after a little bit of fighting, have gotten it working. System details related are: OS : FreeBSD 4-STABLE (RELENG_4 as of yesterday) mplayer-0.99.5_5 (FreeBSD port) Card : Hauppauge WinTV+FM PCI. (BT878) My question is this -- Is there any way, when using the "norm=NTSC" option to change the -source- resolution? I expect the answer is no, since resolution is intimately tied to the NTSC standard. If that is indeed the case, I could use some help getting the mencoder settings right in the "-tv" section. It seems if I neglect the "norm=NTSC" part, that no matter what I specify for FPS, Height, Width, or whatever else, it always captures at 1FPS.. apparently I'm missing some options that I need to get this working properly.. For example: mencoder \ -tv driver=bsdbt848:device=/dev/bktr0:input=5:norm=NTSC \ -o test.avi \ -ovc lavc \ -lavcopts vcodec=mpeg4:vbitrate=1200 \ tv:// works properly exactly as expected, however.. mencoder \ -tv driver=bsdbt848:device=/dev/bktr0:input=5:fps=29.97:width=640:height=480 \ -o test.avi \ -ovc lavc \ -lavcopts vcodec=mpeg4:vbitrate=1200 \ tv:// Does not and results in the dreaded "1fps" capture rate. I'm trying to capture the tv-out from another computer (svideo -> svideo), and I should be able to get a bit over 640x480 using this direct connection. I would think 800x600 at least, if not 1024x768 (if I'm lucky). Any help would be appreciated. -allen

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Mencoder -mf option not encoding all files
by El Farto 26 Dec '04

26 Dec '04

Hi all. I''m using mencoder to encode to avi jpgs generated by some security cameras, the file are written in a ftp server with this filename format camX_datetime (e.g cam4_20041224190000.jpg) . The problem is, mencoder doesn't seem to encode all .jpg files. For example from a list of 1149 files (from 1 hour recording) it only encodes 56 frames. Using different sets of .jpg files , (between 400-1000 files) it always encodes less files that there are on the disk. Any clue on this will be highly appreciated. BTW: I have tried with mpeg4/mjpeg codecs with the same result. ---------------- # mencoder mf:// -mf type=jpg -ovc lavc -lavcopts vcodec=mpeg4 -o out MEncoder 1.0pre5try2-3.3.4 (C) 2000-2004 MPlayer Team CPU: Intel Pentium 4/Xeon/Celeron Northwood 2993 MHz (Family: 8, Stepping: 4) Detected cache-line size is 64 bytes MMX supported but disabled MMX2 supported but disabled SSE supported but disabled CPUflags: Type: 8 MMX: 0 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 1 Compiled for x86 CPU with extensions: SSE2 Reading /root/.mplayer/codecs.conf: Can't open '/root/.mplayer/codecs.conf': No such file or directory Reading /usr/share/mplayer/codecs.conf: 73 audio & 180 video codecs 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 /usr/share/mplayer/font/font.desc loaded successfully! (206 chars) success: format: 16 data: 0x0 - 0x0 [demuxer] mf support. [mf] search expr: * [mf] number of files: 1149 (4596) [V] filefmt:16 fourcc:0x47504A49 size:0x0 fps:25.00 ftime:=0.0400 Opening video filter: [expand osd=1] Expand: -1 x -1, -1 ; -1 (-1=autodetect) osd: 1 ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffmjpeg] vfm:ffmpeg (FFmpeg MJPEG decoder) ========================================================================== Writing AVI header... ODML: Aspect information not (yet?) available or unspecified, not writing vprp header. VDec: vo config request - 320 x 240 (preferred csp: Planar 422P) Could not find matching colorspace - retrying with -vf scale... Opening video filter: [scale] VDec: using Planar 422P as output csp (no 1) Movie-Aspect is 1.33:1 - prescaling to correct movie aspect. SwScaler: reducing / aligning filtersize 1 -> 1 SwScaler: reducing / aligning filtersize 1 -> 1 SwScaler: reducing / aligning filtersize 1 -> 1 SwScaler: reducing / aligning filtersize 9 -> 8 SwScaler: BICUBIC scaler, from Planar 422P to Planar YV12 using C videocodec: libavcodec (320x240 fourcc=58564944 [DIVX]) Pos: 2.2s 56f ( 0%) 34fps Trem: 0min 0mb A-V:0.000 [786:0] Writing AVI index... Fixing AVI header... ODML: vprp aspect is 4:3. Video stream: 786.411 kbit/s (98301 bps) size: 220195 bytes 2.240 secs 56 frames linux-dvr 1 # Another example, worse this time

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Re: MEncoder-users Digest, Vol 4, Issue 17
by Manu J 22 Dec '04

22 Dec '04

Hi, > vhq=3 is always extremely slow on both windows and > linux So without a visible loss of quality how much lower can i go ? > they are in the right order, but are you sure you > are using a linear blend > deinterlacer and a bicubic scaler in vdub (as in the > cli above)? I didn't get you. i'm using pp=lb (linear blend) above in my script. What's a bicubic scaler ? Are you referring to scale=640:272 option? In vdub (actually gordianknot) there is a dvd2avi program and i had to enable a force film option.Guess this does the denterlacing and regarding the scaling i just choose the scale (hence also bpp) and i don't know how vdub does it internally. > me_quality=6 implies 4mv. BTW are you sure you want > trellis and 3 B frames? what are the disadvantages of having these options enables ? > -ofps 23.96 is wrong: 24000/1001 (=23.976) is the > right value oops...that was a typo in my script.What difference can this make (eye can't make out between the two fps). Regards Manu ===== hello ________________________________________________________________________ Yahoo! India Matrimony: Find your life partner online Go to: http://yahoo.shaadi.com/india-matrimony

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Mencoder + xvid giving less quality than VirtualDub + Xvid
by Manu J 21 Dec '04

21 Dec '04

Hi, Recently i encoded a DVD to Xvid using both Mencoder and VirtualDub and i found that VirtualDub gave a better quality for the same filesize. Here is the command i used for mencoder. cat *.VOB | mencoder -vf crop=720:378:0:52,scale=640:272,pp=lb -ovc xvid -xvidencopts bitrate=900:me_quality=6:quant_type=mpeg:gmc:trellis:chroma_opt:chroma_me:hq_ac:vhq=3:autoaspect:max_bframes=3:qpel:pass=1 -oac mp3lame -lameopts q=3:vol=7 - -ofps 23.96 -o /dev/null cat *.VOB | mencoder -vf crop=720:378:0:52,scale=640:272,pp=lb -ovc xvid -xvidencopts bitrate=900:me_quality=6:quant_type=mpeg:gmc:trellis:chroma_opt:chroma_me:hq_ac:vhq=3:autoaspect:max_bframes=3:qpel:pass=2 -oac mp3lame -lameopts q=3:vol=7 - -ofps 23.96 -o dch.avi Now i tried many variations and there was never a significant change and atlast i got tired and i went with these options :-).Mencoder took much longer time to encode than virtualdub possibly because i enabled so many xvid options like gmc,qpel. I forgot the settings for virtualdub but i just followed the doom9.org guide and used the same seetings. Now some questions 1)Is there a way to speed mencoder up without losing quality ? I have only linux and i don't want to trouble my friend often 2)Am i doing something wrong here especially with respect to scale and crop? Which should be done first? 3)Is there any xvid setting that i missed which would have made a difference in quality? I tried enabling 4mv but mencoder said it's not a valid option though TFM says otherwise ! System and siftware details Slackware linux 10 AMD Athlon 1700 MPlayer 1.0pre5try2-3.4.2 Wine 20041019 Xvid 1.0.2 Regards Manu ________________________________________________________________________ Yahoo! India Matrimony: Find your life partner online Go to: http://yahoo.shaadi.com/india-matrimony

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Creating a DVD from AVI
by Jan Kurik 20 Dec '04

20 Dec '04

Hi everybody, I am new in this list, so excuse me please if this is a FAQ, but I could not find an answer to my question. I have an AVI file and I want to make a DVD from it. I have found several how-to-s, how to make an AVI from a DVD but I could not find a description, how to make a reverse process: a DVD from an AVI. Do someone know, how to do it, or do you know about some description (how-to) on web ? Thanks, Jan -- Jan Kurik <kurik(a)seznam.cz>

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SAA7130
by David Miller 17 Dec '04

17 Dec '04

Hello I have used linux for a long time but new to video. I have a 2200+ Athlon running Fedora Core 3 I have a video capture card, EasyMaker that has a SAA7130 The hardware browser says it is using Driver saa7134 If I hook my cam corder to the card, I can watch just fine with tvtime. I want to be able to record the various video clips from my cam corder and burn to DVD. I started to try to use freevo and their mailing list said that it wasn't the right tool for what I want to do and sugested mencoder. mencoder is loaded on the system but I can't figure out how to get it to capture from the card. Anyone have any ideas. David Miller

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Video from pictures that are to be created
by imaginee1＠gmx.net 16 Dec '04

16 Dec '04

Hi everyone I have a problem that may be a bit uncommon so I don't know where to start searching. Maybe someone on this list has a few ideas about it. Ok, of to the problem report: I am creating a sequence of pictures with some plotting application. (python/matplotlib) Now, what I would like to do is add them to some video stream and delete the pictures afterwards. The idea is to add the pictures to the stream as the other application is creating them, so I only have about 20 or so pictures on my harddisk at one time. Creating all pictures and making a video afterwards would use too much space. So the ideal situation would be the following: Let's say I get a new picture every five minutes or so, (time may vary per picture) then the encoder would add this picture to the video stream it is creating and I could delete the picture. The encoder would wait now for the next picture and process it until I sent a stop signal. Any ideas how this could be achieved? Thanks in advance. Cheers, Nikolai -- GMX ProMail mit bestem Virenschutz http://www.gmx.net/de/go/mail +++ Empfehlung der Redaktion +++ Internet Professionell 10/04 +++

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FadeIn/FadeOut
by omerlet＠free.fr 15 Dec '04

15 Dec '04

Hi, I'm actually ripping video clips from dvds, using mencoder and it works perfectly. But to make my video clips more nice, I would like to add a fade in and fade out on the video and the audio... I think everybody need to do that!!! Is there a way to do that with mencoder? On windows (Yes, I know, it's a forbiden word....), there is avisynth doing this easyly (but I don't know how to generate a final avi file!!!...). Anyway, there must be a way to do that with Linux and in batch processing, right? Thanks for your help Olivier --

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