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Authoring Works 4.0.2.14 Video size
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walterp98
Newbie
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22. May 2009 @ 11:51 |
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Hello ...
I created MPG files using mencoder with the following options:
mencoder myfile.avi \
-channels 6 \
-of mpeg \
-oac lavc -ovc lavc \
-lavcopts acodec=ac3:abitrate=384:vcodec=mpeg2video:vbitrate=5000 \
-mpegopts format=dvd -srate 48000 -ofps 30000/1001 \
-o myfile.mpg
When I add these to a new project, it sizes them to 8068 mb, even though the source files are all less than 1 Gig each. The avi files are not HD source.
What am I missing here?
Thanks in advance.
Walter
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Senior Member
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22. May 2009 @ 13:41 |
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How many minutes is the source?
Generally, any converted file depends on the sources length(time)
rather than it's size (MB or GB).
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walterp98
Newbie
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22. May 2009 @ 13:43 |
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roughly 42 minutes per episode, I'd like to put 4 episodes per disc if possible, but could live with 3 per ... I was able to run dvdauthor under linux to create video_ts and audio_ts, but my athlon xp chokes on some software that is used to make menus and buttons
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Senior Member
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22. May 2009 @ 14:06 |
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You should be able to do it,
42*4 with audio @ 384, comes to an approximate bitrate of
3275 kbps.
It's a little low, but should be OK, use a 2 pass encode.
Give AVStoDVD or DVD Flick a try. If you want to stick with
Mencoder, make sure you set the bitrate properly.
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walterp98
Newbie
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22. May 2009 @ 15:53 |
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Thanks for the info ... I'd rather stick with command-line linux tools since I have a lot of files to convert.
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walterp98
Newbie
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22. May 2009 @ 16:37 |
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Originally posted by walterp98:
Thanks for the info ... I'd rather stick with command-line linux tools since I have a lot of files to convert.
Is there a HOWTO or FAQ somewhere that I can look at to calculate video bitrates in the future?
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Senior Member
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22. May 2009 @ 18:57 |
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walterp98
Newbie
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22. May 2009 @ 20:07 |
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walterp98
Newbie
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22. May 2009 @ 20:36 |
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Well, I re-encoded 3 of my avi files at 3200, and added them to a project, and the size remained at 2 gig per track.
I'm quite baffled at this point and ready to try a different piece of software.
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Senior Member
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23. May 2009 @ 01:43 |
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Is the encoder not honoring your video bitrate, or something
else going on ? Have you checked the bitrate of the produced
m2v for a possible clue ?
This message has been edited since posting. Last time this message was edited on 23. May 2009 @ 01:45
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walterp98
Newbie
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23. May 2009 @ 04:03 |
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Originally posted by davexnet:
Is the encoder not honoring your video bitrate, or something
else going on ? Have you checked the bitrate of the produced
m2v for a possible clue ?
I opened one of the resulting .mpg files with bitrateviewer (this site has a link) and it reported my average bitrate was 2484 with a peak of 9894 ... yet when I open the .mpg file with authoring works, it more than doubled its size to over 2 Gb ...
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Senior Member
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23. May 2009 @ 11:01 |
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Authoring works is not supposed to re-encode it, assuming the
source is DVD compliant.
It's possible that it did though in this case. It might not accept your
source as-is since the max bitrate looks a little too high to me.
"with a peak of 9894"
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walterp98
Newbie
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23. May 2009 @ 11:50 |
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Originally posted by davexnet:
Authoring works is not supposed to re-encode it, assuming the
source is DVD compliant.
It's possible that it did though in this case. It might not accept your
source as-is since the max bitrate looks a little too high to me.
"with a peak of 9894"
Well I'm giving up on mencoder for now, until I upgrade my machine to an intel processor, when hopefully the linux tools will work. I'll try another encoding tool under xp to see if things change.
Thanks for your efforts.
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Senior Member
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23. May 2009 @ 13:35 |
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AVStoDVD uses the great HCenc encoder. Excellent bitrate control.
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