27 Nov
2007
27 Nov
'07
8:01 a.m.
Greetings,
I use the following command to invoke mencoder to compile a series of
TGA image files into an animation :
mencoder -ovc lavc -lavcopts vcodec=mpeg4:vme=1:keyint=30:vbitrate=1000
-vf scale=800:600 -noskip -mf type=tga:fps=30 -o avs-001.avi mf://*.tga
(Sorry about the line breaks.)
The problem starts with the "mf://*.tga" part of the command. When the
AVSynthesis program creates its TGA images it saves and labels them
sequenctially, i.e. 1.tga, 2.tga, 3.tga and so on, as expected. The
problem is that mencoder reads the files as they would be returned by a
plain ls command, i.e. 1.tga, 10.tga, 100.tga, 1000.tga, 1001.tga
...101.tga, 1010.tga, thus interpolating frames out of their correct order.
So, my question is, how do I get mencoder to read the TGA files by their
time of creation ? That should do the trick, yes ? Otherwise I have to
separate the single digit files from the double digit files and so
forth, then I have to create and join separate AVIs. Not terribly
difficult, just really annoying and time-consuming.
Any suggestions ? Any mencoder users out there ?
Also, what do you use in place of mencoder on a 64-bit system ? (It's
not available for 64 Studio.)
Best,
dp
27 Nov
27 Nov
10:44 a.m.
On Tue, Nov 27, 2007 at 07:01:11AM -0500, Dave Phillips wrote:
Greetings,
I use the following command to invoke mencoder to compile a series of
TGA image files into an animation :
mencoder -ovc lavc -lavcopts vcodec=mpeg4:vme=1:keyint=30:vbitrate=1000
-vf scale=800:600 -noskip -mf type=tga:fps=30 -o avs-001.avi mf://*.tga
(Sorry about the line breaks.)
The problem starts with the "mf://*.tga" part of the command. When the
AVSynthesis program creates its TGA images it saves and labels them
sequenctially, i.e. 1.tga, 2.tga, 3.tga and so on, as expected. The
problem is that mencoder reads the files as they would be returned by a
plain ls command, i.e. 1.tga, 10.tga, 100.tga, 1000.tga, 1001.tga
...101.tga, 1010.tga, thus interpolating frames out of their correct order.
sort(1) combined with xargs(1) should do the trick. Try this:
ls *tga | sort -n | xargs mencoder -ovc lavc -lavcopts
vcodec=mpeg4:vme=1:keyint=30:vbitrate=1000 -vf scale=800:600 -noskip -mf type=tga:fps=30
-o avs-001.avi
So, my question is, how do I get mencoder to read the
TGA files by their
time of creation ? That should do the trick, yes ?
To get most recent files last, you could do:
ls -rt *tga | xargs mencoder ...
but I'd stick with sort -n instead, because if you accidentally touch
a file in the middle, it will move to the end of the list...
Otherwise I have to
separate the single digit files from the double digit files and so
forth, then I have to create and join separate AVIs. Not terribly
difficult, just really annoying and time-consuming.
Or you could use rename(1). For example:
pw@kermit namegunk $ ls
0.tga 11.tga 13.tga 15.tga 17.tga 19.tga 2.tga 4.tga 6.tga
8.tga
10.tga 12.tga 14.tga 16.tga 18.tga 1.tga 3.tga 5.tga 7.tga
9.tga
pw@kermit namegunk $ rename "" 0 ?.tga
pw@kermit namegunk $ ls
00.tga 02.tga 04.tga 06.tga 08.tga 10.tga 12.tga 14.tga 16.tga
18.tga
01.tga 03.tga 05.tga 07.tga 09.tga 11.tga 13.tga 15.tga 17.tga
19.tga
pw@kermit namegunk $ rename "" 0 ??.tga
pw@kermit namegunk $ ls
000.tga 003.tga 006.tga 009.tga 012.tga 015.tga 018.tga
001.tga 004.tga 007.tga 010.tga 013.tga 016.tga 019.tga
002.tga 005.tga 008.tga 011.tga 014.tga 017.tga
... repeat as necessary.
Having done that, your original comand should work.
--
Paul Winkler
http://www.slinkp.com
10:48 a.m.
On 2007-11-28 12:44 am, Dave Phillips wrote:
...
mencoder -ovc lavc -lavcopts vcodec=mpeg4:vme=1:keyint=30:vbitrate=1000
-vf scale=800:600 -noskip -mf type=tga:fps=30 -o avs-001.avi mf://*.tga
...
So, my question is, how do I get mencoder to read the TGA files by their
time of creation ? That should do the trick, yes ? Otherwise I have to
separate the single digit files from the double digit files and so
forth, then I have to create and join separate AVIs. Not terribly
difficult, just really annoying and time-consuming.
Any suggestions ? Any mencoder users out there ?
Probably not quite the best answer but here is a oneliner workaround...
for i in *.tga;do mv $i $(printf "%05d.tga\n" $(echo $i|cut -d. -f1));done
--markc
10:50 a.m.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Dave Phillips wrote:
Greetings,
I use the following command to invoke mencoder to compile a series of
TGA image files into an animation :
mencoder -ovc lavc -lavcopts vcodec=mpeg4:vme=1:keyint=30:vbitrate=1000
-vf scale=800:600 -noskip -mf type=tga:fps=30 -o avs-001.avi mf://*.tga
(Sorry about the line breaks.)
The problem starts with the "mf://*.tga" part of the command. When the
AVSynthesis program creates its TGA images it saves and labels them
sequenctially, i.e. 1.tga, 2.tga, 3.tga and so on, as expected. The
problem is that mencoder reads the files as they would be returned by a
plain ls command, i.e. 1.tga, 10.tga, 100.tga, 1000.tga, 1001.tga
...101.tga, 1010.tga, thus interpolating frames out of their correct order.
So, my question is, how do I get mencoder to read the TGA files by their
time of creation ?
I'm not sure if you can
That should do the trick, yes ? Otherwise I have to
separate the single digit files from the double digit files and so
forth, then I have to create and join separate AVIs. Not terribly
difficult, just really annoying and time-consuming.
Any suggestions ? Any mencoder users out there ?
yes, but when I found myself at this crossing, I choose the pragmatic
shell path:
mkdir sl; i=100000; for file in $(ls -tr *.sgi); do ln -s $file
sl/$i.sgi; i=$[ $i + 1 ]; done;
(no line breaks)
and run mencoder on the symlinks.
Also, what do you use in place of mencoder on a 64-bit
system ? (It's
not available for 64 Studio.)
It's not a 64-bit problem, but ffmpeg licensing issues with 64studio.
robin
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1:26 p.m.
Robin Gareus wrote:
So is there another tool I can use from Debian/64 Studio repos for AMD64
? I have thousands of TGA image files, each one 3.8 MB. I'd rather not
transfer them to DVD or over the wire just to encode them on my 32-bit
box. Any suggestions ?
Best,
dp
Also, what do
you use in place of mencoder on a 64-bit system ? (It's
not available for 64 Studio.)
It's not a 64-bit problem, but ffmpeg licensing issues with 64studio.
28 Nov
28 Nov
2:12 a.m.
On Tuesday 27 November 2007 10:26:24 Dave Phillips wrote:
Robin Gareus wrote:
So is there another tool I can use from Debian/64 Studio repos for AMD64
? I have thousands of TGA image files, each one 3.8 MB. I'd rather not
transfer them to DVD or over the wire just to encode them on my 32-bit
box. Any suggestions ?
Best,
dp
Dave that AVsynthesis package looks very promising.
http://avsynthesis.blogspot.com/2007/11/avsynthesis-version-10007.html
I noticed at the web site that you are handling the Linux conversion. Is
there a downloadable Linux version available yet that might run on
UbuntuStudio?
Thanks
Tom
Also,
what do you use in place of mencoder on a 64-bit system ? (It's
not available for 64 Studio.)
It's not a 64-bit problem, but ffmpeg licensing issues with 64studio.
6:48 a.m.
thomas fisher wrote:
Dave that AVsynthesis package looks very promising.
http://avsynthesis.blogspot.com/2007/11/avsynthesis-version-10007.html
I noticed at the web site that you are handling the Linux conversion. Is
there a downloadable Linux version available yet that might run on
UbuntuStudio?
Hi Thomas,
No, but AVS is portable, so it should run out-of-the-box if you have the
prerequisites. You'll need Java of course, and a version of Csound5
compiled for double precision and with the Java wrapper enabled. It's
not difficult to compile Csound5 if you've already built software from
source code.
If you have troubles with the LWJGL stuff compile it yourself (what I
did for a 64-bit build).
I'm writing an article on AVS for the Linux Journal. Unfortunately it
won't be published until sometime next year, so let me know if you need
further assistance.
Best,
dp
27 Nov
27 Nov
11:35 a.m.
Dienstag, 27. November 2007 Dave Phillips:
Greetings,
I use the following command to invoke mencoder to compile a series of
TGA image files into an animation :
mencoder -ovc lavc -lavcopts vcodec=mpeg4:vme=1:keyint=30:vbitrate=1000
-vf scale=800:600 -noskip -mf type=tga:fps=30 -o avs-001.avi mf://*.tga
Instead of the "*.tga" filemask you use a list: mf://@list
The problem starts with the "mf://*.tga"
part of the command. When the
AVSynthesis program creates its TGA images it saves and labels them
sequenctially, i.e. 1.tga, 2.tga, 3.tga and so on, as expected. The
problem is that mencoder reads the files as they would be returned by a
plain ls command, i.e. 1.tga, 10.tga, 100.tga, 1000.tga, 1001.tga
...101.tga, 1010.tga, thus interpolating frames out of their correct order.
$ find *tga | sort -n > list
Wolfgang
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days inactive
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linux-audio-user@lists.linuxaudio.org
8 comments
6 participants
participants (6)
-
Dave Phillips -
Mark Constable -
Paul Winkler -
Robin Gareus -
thomas fisher -
Wolfgang Woehl