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  #1  
05-07-2004, 12:01 PM
mbaluda mbaluda is offline
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doesn't mencodeMe encode audio?
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  #2  
05-07-2004, 12:08 PM
kwag kwag is offline
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Quote:
Originally Posted by mbaluda
doesn't mencodeMe encode audio?
No. Just video.
Encode your audio with HeadAC3he.

-kwag
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  #3  
05-07-2004, 12:30 PM
digitall.doc digitall.doc is offline
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That's right.
If you want, you can do also your audio encoding, and muxing, from just a command line.
See here the way proposed by Incredible to encode video, audio and multiplex.
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  #4  
05-07-2004, 12:35 PM
mbaluda mbaluda is offline
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I would like to make ksvcd under linux...

mencodeme is the first simple gui to do that, it would be beautiful if it could encode audio too
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  #5  
05-07-2004, 02:12 PM
tuco1979 tuco1979 is offline
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Quote:
Originally Posted by mbaluda
I would like to make ksvcd under linux...

mencodeme is the first simple gui to do that, it would be beautiful if it could encode audio too
you can encode audio with mencoder or you can use toolame as well. I have a script that I use to encoder audio and video with mencoder then demux with mplayer and remux with mplex since mencoder doesn't mux right. If you use toolame, then you could just run a batch file (don't remember the linux term for batch ) and mplex but the audio file that you input to toolame must be pcm. The cool thing about mencoder is that it support many more formats than toolame. You probably won't need a gui for encoding and muxing audio since most of the time (at least for me) I use the same settings. I am still pretty new to video creation in linux, so take my suggestions with a grain of salt. I hope that I will be able to post (if anyone would care ) about recording tv to creating a kvcd or vcd entirely in linux. I am in windows now so I can't post my script but when I get to linux I will post it for you.
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  #6  
05-07-2004, 02:59 PM
mbaluda mbaluda is offline
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if you can use mencoder to encode audio why don't do it inside mencodMe?
I think it would be great even if it would need demux and remux with an external muxer!!
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  #7  
05-07-2004, 03:03 PM
Prodater64 Prodater64 is offline
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Quote:
Originally Posted by mbaluda
if you can use mencoder to encode audio why don't do it inside mencodMe?
I think it would be great even if it would need demux and remux with an external muxer!!
Why most people decode audio with besweet or headac3he and multiplex it with bbmpeg and not directly with tmpgenc?
Maybe mencoder audio manage is no so good than with those tools.
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  #8  
05-07-2004, 03:03 PM
mbaluda mbaluda is offline
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@kwag

I tried with headac3he under windows and then multiplexed with mplex but I get audio out of sync...
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  #9  
05-07-2004, 03:35 PM
kwag kwag is offline
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Quote:
Originally Posted by mbaluda
@kwag

I tried with headac3he under windows and then multiplexed with mplex but I get audio out of sync...
Out of sync in your computer, or on your standalone
This happens to me too, when playing on the computer, but not on the standalone.
However, there's an issue in mencoder, that it switches frame rates during encoding ( @vmesquita, please read this )
It happened to me on the movie "The Big Hit".
It started as 23.976fps, and somewhere in the middle somewhere of the movie, it switched to 29.97fps for some frames, and then switched back again to 23.976fps.
So the movie went out of sync from that point on, and got worse towards the end.
I only saw the change of frame rate once in the log, and I didn't pay too much attention, but obviously there were several framerate changes during the encode.

@vmesquita, is there some way to "lock" the frame rate

-kwag
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  #10  
05-07-2004, 03:42 PM
mbaluda mbaluda is offline
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> Out of sync in your computer, or on your standalone?

on the pc playing with vlc
I will try on the standalone!
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  #11  
05-07-2004, 03:54 PM
vmesquita vmesquita is offline
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Quote:
Originally Posted by kwag
It happened to me on the movie "The Big Hit".
It started as 23.976fps, and somewhere in the middle somewhere of the movie, it switched to 29.97fps for some frames, and then switched back again to 23.976fps.
So the movie went out of sync from that point on, and got worse towards the end.
I only saw the change of frame rate once in the log, and I didn't pay too much attention, but obviously there were several framerate changes during the encode.

@vmesquita, is there some way to "lock" the frame rate

-kwag
MPEG2 can have 23.976 progressive content mixed with 29.97 interlaced content in the same stream And the 29.97 interlaced can be in fact hard telecined... Ths may be the case here, I am not sure. But I think there's a way to force 23.976 output (will be jerky in some moments but still better than out of sync). I'll take a look on the manpage.
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  #12  
05-07-2004, 04:00 PM
kwag kwag is offline
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Quote:
Originally Posted by vmesquita
MPEG2 can have 23.976 progressive content mixed with 29.97 interlaced content in the same stream And the 29.97 interlaced can be in fact hard telecined... Ths may be the case here, I am not sure. But I think there's a way to force 23.976 output (will be jerky in some moments but still better than out of sync). I'll take a look on the manpage.
This would be the equivalent of using "Force FILM" in DVD2AVI, because almost every movie does contain some (minimal) NTSC scenes scattered around. So forcing it would accomplish the same thing. And yes, I'd rather see a couple of jerky frames, than a movie out of sync

-kwag
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  #13  
05-07-2004, 04:01 PM
incredible incredible is offline
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Kwag, did you have to perform an IVTC on your Source by using Mencoders internal Filters

EDIT: You already answered
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  #14  
05-07-2004, 04:09 PM
kwag kwag is offline
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Quote:
Originally Posted by incredible
Kwag, did you have to perform an IVTC on your Source by using Mencoders internal Filters
This movie, The Big Hit, is a SuperBit DVD. I just ran the VOB through DVD2AVI, and indeed, it switched from FILM to NTSC about 1/3 of the way, and then switched back to FILM. I checked my encoded MPEG, and exactly after that point is where audio goes out of sync. Apparently, it happens later in the movie too, because by the end of the movie, the audio/video delay is over one second off

-kwag
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  #15  
05-07-2004, 04:37 PM
tuco1979 tuco1979 is offline
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This is what I use for stuff that I record off tv and put in vcd or kvcd format since svcd and ksvcd don't work on my dvd player and I don't have a dvd burner yet. I haven't had a mux problem with mplex yet but if you do, you can just up the buffer used by changing your profile to a user rate profile and up the buffersize a little bit. Most of the time, you don't have to up it much at all. The audio quality from mencoder is good enough for 2 channel stereo 192 or higher for tv, plus I don't have to worry about ripping the sound out of my .avi file.

# start of file
# Input and Ouput cannot have any spaces..yet
INPUT='filename
EXT='avi'
OUTPUT='filename
VBIT='1150'
ABIT='224'
VFPRE='-vf-pre hqdn3d=4:3:6'
#vcd kvcd
SETTINGS='vcd'
#VCD=1 KVCD=2
MUX='1'
#two pass disabled use #
TPASS='#'
#one pass disabled use #
OPASS=

$TPASS mencoder -include /home/$SETTINGS.ini $VFPRE -lavcopts vbitrate=$VBIT:abitrate=$ABIT:keyint=24:vmax_b_fra mes=2:acodec=mp2:vpass=1 /mnt/hda7/Capture/$INPUT.$EXT -o NUL
$TPASS mencoder -include /home/ctyler/video/$SETTINGS.ini $VFPRE -lavcopts vbitrate=$VBIT:abitrate=$ABIT:keyint=24:vmax_b_fra mes=2:acodec=mp2:vpass=2 /mnt/hda7/Capture/$INPUT.$EXT -o /mnt/hda7/Capture/$INPUT.mpg
$OPASS mencoder -include /home/video/$SETTINGS.ini $VFPRE -lavcopts vbitrate=$VBIT:abitrate=$ABIT:keyint=24:vmax_b_fra mes=2:acodec=mp2 /mnt/hda7/Capture/$INPUT.$EXT -o /mnt/hda7/Capture/$INPUT.mpg
$TPASS rm NUL
mplayer -dumpaudio /mnt/hda7/Capture/$INPUT.mpg -dumpfile /mnt/hda7/Capture/$INPUT.mp2
mplayer -dumpvideo /mnt/hda7/Capture/$INPUT.mpg -dumpfile /mnt/hda7/Capture/$INPUT.m1v
rm /mnt/hda7/Capture/$INPUT.mpg
mplex -f $MUX -o /mnt/hda7/Capture/$OUTPUT.mpg /mnt/hda7/Capture/$INPUT.m1v /mnt/hda7/Capture/$INPUT.mp2
rm /mnt/hda7/Capture/$INPUT.m1v
rm /mnt/hda7/Capture/$INPUT.mp2
#end of file

I just need to change some settings depending on the video and type bash filename of my template and that is it. GUIs are nice but this works for me right now. If vmesquita can make his GUI more like TMPGenc, then that would be great. Nudge, nudge, wink wink This is pobably not what you are looking for, but it is another option for using linux.
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  #16  
05-07-2004, 05:07 PM
vmesquita vmesquita is offline
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@kwag
Since I am using -ofps 23.976 (it's in the template), mencoder should drop frames automatically to keep the output framerate fixed in the hard-telecined parts. But apparently it didn't work.
So another idea is: use the inverse telecine filter of the GUI (ivtc=1) and see if it solves the problem. In theory, it should IVTC the hard-telecined parts. Maybe you can cut the VOB just before the hard-telecined part starts to do some tests. If still it doesn't work, you can try the pullup IVTC filter, it's supposed to be better than IVTC but never worked very well with me.

@tuco1979
What do you mean by "more like TMpgenc"?
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  #17  
05-07-2004, 05:18 PM
incredible incredible is offline
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pullup:softkip

could be a choice and .....!!!... look here ...:


....

filmdint[=options]

Inverse telecine filter, similar to the pullup fil- ter above. It is designed to handle any pulldown pattern, including mixed soft and hard telecine and limited support for movies that are slowed down or sped up from their original framerate for TV. ....
With no options it does normal inverse telecine, and should be used together with mencoder -fps 29.97 -ofps 23.976. When this filter is used with mplayer, it will result in an uneven framerate during playback, but it is still generally better than using pp=lb or no deinterlacing at all. Multiple options can be specified separated by /.

crop=w:h: x:y
Just like the crop filter, but faster, and works on mixed hard and soft telecined con- tent as well as when y is not a multiple of 4. If x or y would require cropping fractional pixels from the chroma planes, the crop area is extended. This usually means that x and y must be even.

io=ifpsfps
For each ifps input frames the filter will output ofps frames. The ratio of ifps/ofps should match the -fps/-ofps ratio. This could be used to filter movies that are broadcast on TV at a frame rate different from their original frame rate.

luma_only=n
If n is nonzero, the chroma plane is copied unchanged. This is useful for YV12 sampled TV, which discards one of the chroma fields.

mmx2=n
On x86, if n=1, use MMX2 optimized func- tions, if n=2, use 3DNow! optimized func- tions, othewise, use plain C. If this option is not specified, MMX2 and 3DNow! are auto-detected, use this option to override autodetection.

fast=n
The larger n will speed up the filter at the expense of accuracy. The default value is n=3. If n is odd, a frame immediately following a frame marked with the RE- PEAT_FIRST_FIELD mpeg flag is assumed to be progressive, thus filter will not spend any time on soft-telecined MPEG-2 content. This is the only effect of this flag if MMX2 or 3DNow! is available. Without MMX2 and 3DNow, if n=0 or 1, the same calculations will be used as with n=2 or 3. If n=2 or 3, the number of luma levels used to find the frame breaks is reduced from 256 to 128, which results in a faster filter without losing much accuracy. If n=4 or 5, a faster, but much less accurate metric will be used to find the frame breaks, which is more likely to misdetect high vertical detail as interlaced content.

verbose=n
If n is nonzero, print the detailed metrics for each frame. Useful for debugging.

dint_thres=n
Deinterlace threshold. Used during de-in- terlacing of unmatched frames. Larger val- ue means less deinterlacing, use n=256 to completely turn off deinterlacing. Default is n=8.

comb_thres=n
Threshold for comparing a top and bottom fields. Defaults to 128.

diff_thres=n
Threshold to detect temporal change of a field. Default is 128.

sad_thres=n
Sum of Absolute Difference threshold, de- fault is 64.
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  #18  
05-09-2004, 06:00 PM
vmesquita vmesquita is offline
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Looks mc=0 can also help:

http://mplayerhq.hu/pipermail/mplaye...ay/026282.html
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  #19  
05-09-2004, 06:13 PM
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Tomorrow I will perform on an 25 PAL movie a

- spedddown to 23.976 (orig state) and resize it to 720x480 and do perform an telecining via Avisynth on that where a high bitrate mpeg2 will be outputted. That will give me a nice NTSC real condition sample
As I do not got a NTSC telecined source right now.

I think maybe a pullup,softskip can already do nice IVTCs as told in the Manual, but your Link above also makes a real sense VMesquita!

Tomorrow or tuesday I will tell results
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  #20  
05-09-2004, 07:12 PM
tuco1979 tuco1979 is offline
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Quote:
Originally Posted by vmesquita
@kwag
Since I am using -ofps 23.976 (it's in the template), mencoder should drop frames automatically to keep the output framerate fixed in the hard-telecined parts. But apparently it didn't work.
So another idea is: use the inverse telecine filter of the GUI (ivtc=1) and see if it solves the problem. In theory, it should IVTC the hard-telecined parts. Maybe you can cut the VOB just before the hard-telecined part starts to do some tests. If still it doesn't work, you can try the pullup IVTC filter, it's supposed to be better than IVTC but never worked very well with me.

@tuco1979
What do you mean by "more like TMpgenc"?
I mean by being able to edit your files like cutting frames out to muxing to different mpeg formats. I know that mencoder doesn't do these things and probably would have to be a suite of programs. Right now I use avidemux to cut my commericals out, and then use mencoder to encode. It would be great to just use one GUI that can cut, filter and mux. Probably beyond the scope of your GUI but it is nice to dream
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