vnc2swf-users Mailing List for vnc2swf (Page 16)

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I can only use the C version for some reason. The python version wont work.
But that is not my current problem. The window is too small and do not fit
my terminal. what to do?

hi,
i made a tutorial on how to install and use pyvnc2swf.
there is a text:
http://estudiolivre.org/tiki-index.php?page=3Dv%C3%ADdeo+tutorial+swf&bl
accompanied (obviously!) by a video tutorial:
http://www.rhwinter.com/video_tutorial/
everything is in portuguese.
---------------------------------------------------------------------
ol=E1,
eu fiz um tutorial sobre como instalar e usar o pyvnc2swf.
h=E1 um texto:
http://estudiolivre.org/tiki-index.php?page=3Dv%C3%ADdeo+tutorial+swf&bl
acompanhado (=E9 claro!) por um video tutorial:
http://www.rhwinter.com/video_tutorial/
tudo em portugu=EAs.

enjoy,
roberto

Hi,

I am working with pyvnc2swf with vncserver and vncviewer (Xvnc) in ubuntu
6.06
I am successfully connecting to localhost:2 and can record for around 20-30
minutes, however after this time I get the following error and cannot stop
recording to save the swf file.

I am recording under the SWF (Shape) type.

Writing: out.html...
Connected: localhost:5902, protocol_version=3.3, preferred_encoding=(0,
-232, -239)
VNC Screen: size=800x600, name="root's x11 desktop (me:2)"
Creating movie: '/home/me/pyvnc2swf-0.8.2/out.swf': version=5, size=800x600,
framerate=12.0, compression=None

//after some time..

Traceback (most recent call last):
  File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 1345, in __call__
    return self.func(*args)
  File "./vnc2swf.py", line 225, in record
    self.client.close()
  File "/home/me/pyvnc2swf-0.8.2/rfb.py", line 525, in close
    RFBProxy.close(self)
  File "/home/me/pyvnc2swf-0.8.2/rfb.py", line 463, in close
    self.fb.close()
  File "/home/me/pyvnc2swf-0.8.2/rfb.py", line 814, in close
    self.stream.close()
  File "/home/me/pyvnc2swf-0.8.2/output.py", line 482, in close
    self.writer.write_file(self.output_frames)
  File "/home/me/pyvnc2swf-0.8.2/swf.py", line 708, in write_file
    assert not self.fpstack, 'nonempty fpstack: %r' % self.fpstack
AssertionError: nonempty fpstack: [<open file
'/home/me/pyvnc2swf-0.8.2/out.swf',
mode 'wb' at 0xb6fe4de8>]

My vnc server has the following startup options associated:

sudo /usr/bin/Xvnc :2 -query localhost -geometry 800x600 -depth 16 -once -fp
/usr/share/X11/fonts/misc -dontdisconnect -rfbauth /root/.vncpasswd

> Hi Michael
>
> Thanks for the bug report... this is probably something in the pymedia
> code. You seem to have the same versions of the code as me so I'm not sure
> what's wrong...
> I think unfortunately the only way to found out what's going wrong is to
> add debug prints into the code / run it through pdb - you familiar with
> how to do that? Otherwise we can try help...
>
> Cheers
> David

Hi,
I tried running vnc2swf.py with 'import pdb' and 'pdb.set_trace()' and this is 
the last output (step-mode):

> /usr/lib/python2.4/lib-tk/Tkinter.py(1139)configure()->None
-> return self._configure('configure', cnf, kw)
(Pdb)
> /home/miga/Desktop/pyvnc2swf-0.8.2.1/pyvnc2swf-0.8.2.1/pyvnc2swf/vnc2swf.py(170)status()
-> return
(Pdb)
--Return--
> /home/miga/Desktop/pyvnc2swf-0.8.2.1/pyvnc2swf-0.8.2.1/pyvnc2swf/vnc2swf.py(170)status()->None
-> return
(Pdb)
> /home/miga/Desktop/pyvnc2swf-0.8.2.1/pyvnc2swf-0.8.2.1/pyvnc2swf/vnc2swf.py(189)set_filename()
-> self.root.update()
(Pdb)
--Call--
> /usr/lib/python2.4/lib-tk/Tkinter.py(857)update()
-> def update(self):
(Pdb)
> /usr/lib/python2.4/lib-tk/Tkinter.py(859)update()
-> self.tk.call('update')
(Pdb)
--Return--
> /usr/lib/python2.4/lib-tk/Tkinter.py(859)update()->None
-> self.tk.call('update')
(Pdb) Connected: localhost:5900, protocol_version=3.8, 
preferred_encoding=(0, -232, -239)
VNC Screen: size=1280x1024, name='miga:0.0'
Output movie size: 1280x1024
Creating movie: 'test.swf': version=5, size=1280x1024, framerate=12.0, 
compression=None
recording to test.mp3
Fatal Python error: (pygame parachute) Segmentation Fault
Aborted

It seems that the problem is in the pygame not vnc2swf. Should I run pdb 
inside pygame? If yes where should i put the pdb-code?

I also used python -v and thats the output (last lines):

import pymedia.removable # precompiled 
from /usr/lib/python2.4/site-packages/pymedia/removable/__init__.pyc
dlopen("/usr/lib/python2.4/site-packages/pymedia/removable/cd.so", 2);
import pymedia.removable.cd # dynamically loaded 
from /usr/lib/python2.4/site-packages/pymedia/removable/cd.so
# /usr/lib/python2.4/site-packages/pymedia/player.pyc 
matches /usr/lib/python2.4/site-packages/pymedia/player.py
import pymedia.player # precompiled 
from /usr/lib/python2.4/site-packages/pymedia/player.pyc
Using pymedia 1.3.5
# /usr/lib/python2.4/getopt.pyc matches /usr/lib/python2.4/getopt.py
import getopt # precompiled from /usr/lib/python2.4/getopt.pyc
# /home/miga/Desktop/pyvnc2swf-0.8.2.1/pyvnc2swf-0.8.2.1/pyvnc2swf/record_sound.pyc 
matches /home/miga/Desktop/pyvnc2swf-0.8.2.1/pyvnc2swf-0.8.2.1/pyvnc2swf/record_sound.py
import pyvnc2swf.record_sound # precompiled 
from /home/miga/Desktop/pyvnc2swf-0.8.2.1/pyvnc2swf-0.8.2.1/pyvnc2swf/record_sound.pyc
Connected: localhost:5900, protocol_version=3.8, 
preferred_encoding=(0, -232, -239)
VNC Screen: size=1280x1024, name='miga:0.0'
Output movie size: 1280x1024
Creating movie: 'test.swf': version=5, size=1280x1024, framerate=12.0, 
compression=None
recording to test.mp3
Fatal Python error: (pygame parachute) Segmentation Fault
Aborted

Perhaps this helps finding the error. I'm going to try it on my windows box 
later.

Greets,
Michael

Michael Gangolf wrote:
> Hi,
> I just tried the patched version 0.8.2-1 and get the following error message:
>
> Using pygame 1.7.1release
> Using pymedia 1.3.5
> Connected: localhost:5900, protocol_version=3.8, 
> preferred_encoding=(0, -232, -239)
> VNC Screen: size=1280x1024, name='miga:0'
> Output movie size: 1280x1024
> Creating movie: 'recording.swf': version=5, size=1280x1024, framerate=12.0, 
> compression=None
> recording to a.mp3
> Fatal Python error: (pygame parachute) Segmentation Fault
> Aborted
>
> on my linux machine with x11vnc: 0.8.2 lastmod: 2006-07-12 and Python 2.4.3
> Without sound recording it works. Any hints how to fix it?
>
> Greets,
> Michael
Hi Michael

Thanks for the bug report... this is probably something in the pymedia code.
You seem to have the same versions of the code as me so I'm not sure 
what's wrong...
I think unfortunately the only way to found out what's going wrong is to 
add debug prints into the code / run it through pdb - you familiar with 
how to do that? Otherwise we can try help...

Cheers
David

Hi,
I just tried the patched version 0.8.2-1 and get the following error message:

Using pygame 1.7.1release
Using pymedia 1.3.5
Connected: localhost:5900, protocol_version=3.8, 
preferred_encoding=(0, -232, -239)
VNC Screen: size=1280x1024, name='miga:0'
Output movie size: 1280x1024
Creating movie: 'recording.swf': version=5, size=1280x1024, framerate=12.0, 
compression=None
recording to a.mp3
Fatal Python error: (pygame parachute) Segmentation Fault
Aborted

on my linux machine with x11vnc: 0.8.2 lastmod: 2006-07-12 and Python 2.4.3
Without sound recording it works. Any hints how to fix it?

Greets,
Michael

Hello,

Great stuff this pyvnc2swf!

I just want to report an issue with the mpg output, probably due to 
PyMedia rather than pyvnc2swf.

I'm running Ubuntu 6.06 (Dapper Drake) i386. With PyMedia 1.3.7.3 (the 
latest version) I get the following exception:

--
mirko@nefertiti:~$ ./apps/pyvnc2swf-0.8.2/edit.py -o demo.mpg demo.swf
Using pygame 1.7.1release
Using pymedia 1.3.7.0
Scanning source swf file: demo.swf...
Input movie: version=7, size=600x450, framerate=12fps, frames=145, 
duration=12.1 s.
Output movie size: 600x450
Creating MPEG: 'demo.mpg': codec=mpeg2video, size=600x450, framerate=12.0
.Traceback (most recent call last):
  File "./apps/pyvnc2swf-0.8.2/edit.py", line 234, in ?
    if __name__ == "__main__": main(sys.argv[1:])
  File "./apps/pyvnc2swf-0.8.2/edit.py", line 229, in main
    mp3seek=mp3seek, mp3skip=mp3skip)
  File "./apps/pyvnc2swf-0.8.2/edit.py", line 84, in reorganize
    builder.build(r)
  File "/home/mirko/apps/pyvnc2swf-0.8.2/output.py", line 874, in build
    self.stream.next_frame()
  File "/home/mirko/apps/pyvnc2swf-0.8.2/output.py", line 758, in next_frame
    self.out_file.write(encFrame)
TypeError: argument 1 must be string or read-only buffer, not 
pymedia.video.vcod ec.VFrame
--

So I've tried PyMedia version 1.3.5.0 instead, which is the version 
mentioned on the pyvnc2swf web page, and it works correctly.

Seems like the API for Encoder.encode() has changed and it now returns a 
VFrame instead of a string? If that's the case (why an API change in a 
minor release?) maybe it could be mentioned in the documentation that 
pyvnc2swf required *exactly* version 1.3.5.0 of PyMedia.

Thanks

Mirko

 Thanks for the quick response.  Hmm, maybe it's a flash issue in linux, but I am on the latest firefox 1.5.0.5 and the latest flash provided to linux (ubuntu distro dapper).  The swf file alone will launch in firefox in windows but not in linux.  In linux if I right click I see the 'about macromedia flash' and above that 'movie not loaded.'   I guess it must be a linux/flash issue but any other swf file I have can be played on its own.  I noticed that if one goes fullscreen in windows firefox it scales the video which the html prevents, but at least it plays.  Also in windows I do have the slider and pause button.  However when I attempted to use the slider, a security prompt came up saying 'the  tutorial1.html is trying to access tutorial1.swf' and it directed me to macromedia's site with a flash applet to allow this to continue.  I found that strange, never encountered that before.   
The security issue (clicking the slider):
>From http://www.adobe.com/devnet/flash/articles/fplayer8_security.html:
 "In Flash Player 8 Macromedia has changed the security model that's applied       to local Flash content. By default, Flash applications that are run from       a user's local file system rather than over HTTP have more limited privileges       in Flash Player 8 than in Flash Player 7. This model is applied to Flash       content of all versions, which means that content published before the       release of Flash Player 8 may be affected, in addition to new content created       after its release. This article describes how to fix most issues that arise       from these changes."

 This problem happens only when the swf is run locally but it is not supposed to happen when you run the swf through HTTP.
 I didn't fully understand what you mentioned on compression, but this is what I was referring to. 
When I capture a movie I see:
Creating movie: 'tutorial.swf': version=7, size=640x480, framerate=12.0, compression=None

I see compression=true when encoding with edit but the above is when first capturing.  Just wanted to make sure there isn't some other type of real time compression. 
Sorry!  The swf file can be compressed or uncompressed.  The difference is only that the whole file after the swf header is compressed using ZLIB when it's compressed.  This is only available through edit.py.
The vnc protocol always sends rectangle areas (colored or bitmap) where there has been a screen update.
Pyvnc2swf in shape mode uses this rectangle areas to create swf objects. The optimisation is only that it doesn't create a rectangle that has been overwritten entirely by another object in the same frame. (Please correct me if I'm wrong!). Since an object is created for each rectangle update, it can run out of available object ids (number) in recordings with alot of updates and that are long.
But in video mode, pyvnc2swf uses the "screen video format" available in the swf specification "designed for sending captures of screen in action". It divides the area in blocks. "Each frame in a screen video sequence is formatted as a series of blocks. These blocks form a grid over the image. In a keyframe, every block is sent. In an interframe, one or more blocks will contain no data, which indicates that the bitmap region represented by that block has not changed since the last update of that image area."
For recordings where the screen changes alot and frequently the video format usually is better and the swf smaller.
I would suggest first recording to vnc mode (recording is faster) and converting to video mode afterwards with edit.py with compression on.

---------------------------------
 Yahoo! Search
 Música para ver e ouvir: You're Beautiful, do James Blunt
Thanks for the quick response.  Hmm, maybe it's a flash issue in linux, but
I am on the latest firefox 1.5.0.5 and the latest flash provided to linux
(ubuntu distro dapper).  The swf file alone will launch in firefox in
windows but not in linux.  In linux if I right click I see the 'about
macromedia flash' and above that 'movie not loaded.'   I guess it must be a
linux/flash issue but any other swf file I have can be played on its own.  =
I
noticed that if one goes fullscreen in windows firefox it scales the video
which the html prevents, but at least it plays.  Also in windows I do have
the slider and pause button.  However when I attempted to use the slider, a
security prompt came up saying 'the tutorial1.html is trying to access
tutorial1.swf' and it directed me to macromedia's site with a flash applet
to allow this to continue.  I found that strange, never encountered that
before.

I found this bookmarklet that adds a slider when clicked once a flash file
is loaded.
http://www.squarefree.com/bookmarklets/flash.html
Just read that this boommarklet is what is intergrated into to vnc2swf html
generated file.  Strange it works if enabled manually, can anyone else test
this in linux here?

So I have a workaround in linux, but I guess I'm more concerned about how
other users will encounter a screencast created with vnc2swf if I uploaded
them.

I didn't fully understand what you mentioned on compression, but this is
what I was referring to.

When I capture a movie I see:
Creating movie: 'tutorial.swf': version=3D7, size=3D640x480, framerate=3D12=
.0,
compression=3DNone

I see compression=3Dtrue when encoding with edit but the above is when firs=
t
capturing.  Just wanted to make sure there isn't some other type of real
time compression.

And thanks for the info on sound, I thought it was something like that.

And if anyone else is aware of blogs that would allow the html jscript
needed for these files please post.  Or at least I hope the flash file alon=
e
not working for me is something isolated to my machine and not all linux
users.  But ya I agree too, an intergrated slider (or an option to enable
it) would be nice.

On 8/2/06, lfk...@ya... <lfk...@ya...> wrote:
>
> **I'm not a member of this project but I usually try to answer some email=
s
> when I can because I believe everybody that uses an open source project
> should try to help it somehow.
> Many replies to messages in this list have been made through private
> messages which I think is not good since many people could benefit from t=
he
> answers.
> I think Yusuke should try to change the default answer field to the list
> email and not to the person that wrote the message.
> I'll try to answer some of the questions:
>
> A few things, is there no way to have play, pause, maybe a slider in a
> browser or only through play.py?  Looking through the html file, I see it
> mentioning play, pause, slider, but I don't see them in firefox and epiph=
any
> but they didn't show in either.
>
> I use Firefox for Windows and the slider does appear.  I once had the sam=
e
> problem and I think it was solved when I upgraded Firefox.  I think the
> slider should be in the swf file, but that's up to Yusuke, or any
> volunteer...
>
> Also, I wanted to make some screen casts to eventually upload to a blog.
> I've never bothered with blogging, how will it work when I need to upload
> two files (html & swf) to play?  I haven't tried yet but wasn't sure if
> there were some blogs more friendly to that.
>
> I don't know.  Maybe, if your blog allows to include html tags and
> javascript in the post then you could upload only the swf and copy the ht=
ml
> and javascript from the html file.
>
> Regarding audio, I use -S with arecord like so  arecord -c 1 -r 22050 -t
> wav voice.wav which sounded fine.  But just to see how far I could push
> the audio side I tried -r 16000, but edit complained of an error dealing
> with rate.  (something like error !16000).  I use lame for the mp3
> conversion and simply do lame voice.wav voice.mp3.  But when I tried to
> add -b 16000 I got the same error.  Same thing for 8000.  Is this a flash
> limitation or something with edit.py or in the way I'm capturing/encoding
> audio?
>
> From the swf specification: "The Macromedia Flash (SWF) file format
> defines a small and efficient sound model. SWF file format supports sampl=
e
> rates of 5.5, 11, 22 and 44 kHz in both stereo and mono."
>
>
> Btw, are there any plans on adding a hotkey for stop start and maybe an
> ability to pause?  I know they can be edited later but it's kinda cumbers=
ome
> esp when having to deal with a seperate audio file.  I wonder if there ar=
e
> any flash editors that these work in.
>
> I don't know.
>
> Also, I tried wink, and did not like the performance but thought the
> option to make an optimized palette was a nice option, does pyvnc2swf do
> something similar with its compression? I use compression with edit, but =
I
> noticed when starting pyvnc2swf iit also mentions compression (compressio=
n:
> none).  Is this referring to zlib compression or some other option during
> capture? I don't see an option for that.  If it's zlib, it's reading that
> from the vnc session?  I use vnc4server/viewer in ubuntu and it says the
> default for zlib is 1 (zero being off)  so I don't think it's referring t=
o
> that.  The max for zlib is 9, should one increase the default for typical
> screencasts?  I bring this up because it's mentioned in the readme that
> compression during edit is largely redundant due to zlib compression and =
so
> far I"m been compressing during edit and noticing a fair file size decrea=
se,
> but I wouldn't mind if I could compress on the fly if it's not too cpu
> intensive.
>
> The compression used by pyvnc2swf has nothing to do with the vnc
> compression.  The compression it uses is the one specified in the swf
> specification: "...entire file after the first 8 bytes (that is, after th=
e
> FileLength field) has been compressed using the open standard ZLIB. The d=
ata
> format used by the ZLIB library is described by Request for Comments (RFC=
s)
> documents 1950 to 1952."
>
> Hope it was helpfull.
>
> Regards,
>
> Luis Fernando
>
> ------------------------------
> Yahoo! Search
> M=FAsica para ver e ouvir: You're Beautiful, do James Blunt<http://us.rd.=
yahoo.com/mail/br/tagline/search/video/*http://br.search.yahoo.com/search/v=
ideo?p=3Djames+blunt&ei=3DUTF-8&cv=3Dg&x=3Dwrt&vm=3Dr&fr=3Dintl-mail-br-b>
>
>
> -------------------------------------------------------------------------
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DEVDEV
>
> _______________________________________________
> Vnc2swf-users mailing list
> Vnc...@li...
> https://lists.sourceforge.net/lists/listinfo/vnc2swf-users
>
>
>

I'm not a member of this project but I usually try to answer some emails when I can because I believe everybody that uses an open source project should try to help it somehow.
Many replies to messages in this list have been made through private messages which I think is not good since many people could benefit from the answers.
I think Yusuke should try to change the default answer field to the list email and not to the person that wrote the message.
I'll try to answer some of the questions:
A few things, is there no way to have play, pause, maybe a slider in a browser or only through play.py?  Looking through the html file, I see it mentioning play, pause, slider, but I don't see them in firefox and epiphany but they didn't show in either. 
I use Firefox for Windows and the slider does appear.  I once had the same problem and I think it was solved when I upgraded Firefox.  I think the slider should be in the swf file, but that's up to Yusuke, or any volunteer...
Also, I wanted to make some screen casts to eventually upload to a blog.  I've never bothered with blogging, how will it work when I need to upload two files (html & swf) to play?  I haven't tried yet but wasn't sure if there were some blogs more friendly to that. 
I don't know.  Maybe, if your blog allows to include html tags and javascript in the post then you could upload only the swf and copy the html and javascript from the html file.
Regarding audio, I use -S with arecord like so  arecord -c 1 -r 22050 -t wav voice.wav which sounded fine.  But just to see how far I could push the audio side I tried -r 16000, but edit complained of an error dealing with rate.  (something like error !16000).  I use lame for the mp3 conversion and simply do lame  voice.wav voice.mp3.  But when I tried to add -b 16000 I got the same error.  Same thing for 8000.  Is this a flash limitation or something with edit.py or in the way I'm capturing/encoding audio?
>From the swf specification: "The Macromedia Flash (SWF) file format defines a small and efficient sound model. SWF file format supports sample rates of 5.5, 11, 22 and 44 kHz in both stereo and mono."

Btw, are there any plans on adding a hotkey for stop start and maybe an ability to pause?  I know they can be edited later but it's kinda cumbersome esp when having to deal with a seperate audio file.  I wonder if there are any flash editors that these work in. 
I don't know.
Also, I tried wink, and did not like the performance but thought the option to make an optimized palette was a nice option, does pyvnc2swf do something similar with its compression? I use compression with edit, but I noticed when starting pyvnc2swf iit also mentions compression (compression: none).  Is this referring to zlib compression or some other option during capture? I don't see an option for that.  If it's zlib, it's reading that from the vnc session?  I use vnc4server/viewer in ubuntu and it says the default for zlib is 1 (zero being off)  so I don't think it's referring to that.  The max for zlib is 9, should one increase the default for typical screencasts?  I bring this up because it's mentioned in the readme that compression during edit is largely redundant due to zlib compression and so far I"m been compressing during edit and noticing a fair file size decrease, but I wouldn't mind if I could compress on the fly if it's not too cpu intensive. 
The compression used by pyvnc2swf has nothing to do with the vnc compression.  The compression it uses is the one specified in the swf specification: "...entire file after the first 8 bytes (that is, after the FileLength field) has been compressed using the open standard ZLIB. The data format used by the ZLIB library is described by Request for Comments (RFCs) documents 1950 to 1952."

Hope it was helpfull.

Regards,

Luis Fernando

---------------------------------
 Yahoo! Search
 Música para ver e ouvir: You're Beautiful, do James Blunt
Tried a few and this one is the best for what I need.

A few things, is there no way to have play, pause, maybe a slider in a
browser or only through play.py?  Looking through the html file, I see it
mentioning play, pause, slider, but I don't see them in firefox and epiphany
but they didn't show in either.

Also, I wanted to make some screen casts to eventually upload to a blog.
I've never bothered with blogging, how will it work when I need to upload
two files (html & swf) to play?  I haven't tried yet but wasn't sure if
there were some blogs more friendly to that.

Regarding audio, I use -S with arecord like so  arecord -c 1 -r 22050 -t wav
voice.wav which sounded fine.  But just to see how far I could push the
audio side I tried -r 16000, but edit complained of an error dealing with
rate.  (something like error !16000).  I use lame for the mp3 conversion and
simply do lame voice.wav voice.mp3.  But when I tried to add -b 16000 I got
the same error.  Same thing for 8000.  Is this a flash limitation or
something with edit.py or in the way I'm capturing/encoding audio?

Btw, are there any plans on adding a hotkey for stop start and maybe an
ability to pause?  I know they can be edited later but it's kinda cumbersome
esp when having to deal with a seperate audio file.  I wonder if there are
any flash editors that these work in.

Also, I tried wink, and did not like the performance but thought the option
to make an optimized palette was a nice option, does pyvnc2swf do something
similar with its compression? I use compression with edit, but I noticed
when starting pyvnc2swf iit also mentions compression (compression: none).
Is this referring to zlib compression or some other option during capture? I
don't see an option for that.  If it's zlib, it's reading that from the vnc
session?  I use vnc4server/viewer in ubuntu and it says the default for zlib
is 1 (zero being off)  so I don't think it's referring to that.  The max for
zlib is 9, should one increase the default for typical screencasts?  I bring
this up because it's mentioned in the readme that compression during edit is
largely redundant due to zlib compression and so far I"m been compressing
during edit and noticing a fair file size decrease, but I wouldn't mind if I
could compress on the fly if it's not too cpu intensive.

#!/usr/bin/env python
##
##  pyvnc2swf - swf.py
##
##  $Id: swf.py,v 1.8 2005/11/21 03:06:16 euske Exp $
##
##  Copyright (C) 2005 by Yusuke Shinyama (yusuke at cs . nyu . edu)
##  All Rights Reserved.
##
##  This is free software; you can redistribute it and/or modify
##  it under the terms of the GNU General Public License as published by
##  the Free Software Foundation; either version 2 of the License, or
##  (at your option) any later version.
##
##  This software is distributed in the hope that it will be useful,
##  but WITHOUT ANY WARRANTY; without even the implied warranty of
##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
##  GNU General Public License for more details.
##
##  You should have received a copy of the GNU General Public License
##  along with this software; if not, write to the Free Software
##  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
##  USA.
##

import sys, zlib, StringIO
from struct import pack, unpack
stderr = sys.stderr
lowerbound = max
upperbound = min

CURSOR_DEPTH = 65535

##  SWFParser
##
class SWFParser:

  """
  Low-level SWF parser. Inheritable.
  It invokes do_tagXXX method for every SWF tag.
  """

  def __init__(self, debug=0):
    self.fp = None
    self.buff = 0
    self.bpos = 8
    self.debug = debug
    self.framepos = []
    return

  # fixed bytes read

  def read(self, n):
    x = self.fp.read(n)
    if len(x) != n:
      raise EOFError
    return x

  def readui8(self):
    return ord(self.read(1))
  def readsi8(self):
    return unpack('<b', self.read(1))[0]

  def readui16(self):
    return unpack('<H', self.read(2))[0]
  def readub16(self):
    return unpack('>H', self.read(2))[0]
  def readsi16(self):
    return unpack('<h', self.read(2))[0]

  def readui32(self):
    return unpack('<L', self.read(4))[0]

  def readrgb(self):
    return ( self.readui8(), self.readui8(), self.readui8() )
  def readrgba(self):
    return ( self.readui8(), self.readui8(), self.readui8(), self.readui8() )

  # fixed bits read

  def setbuff(self, bpos=8, buff=0):
    (self.bpos, self.buff) = (bpos, buff)
    return

  def readbits(self, bits, signed=False):
    if bits == 0: return 0
    bits0 = bits
    v = 0
    while 1:
      r = 8-self.bpos # the number of remaining bits we can get from the current buffer.
      if bits <= r:
        # |-----8-bits-----|
        # |-bpos-|-bits-|  |
        # |      |----r----|
        v = (v<<bits) | ((self.buff>>(r-bits)) & ((1<<bits)-1))
        self.bpos += bits
        break
      else:
        # |-----8-bits-----|
        # |-bpos-|---bits----...
        # |      |----r----|
        v = (v<<r) | (self.buff & ((1<<r)-1))
        bits -= r
        self.buff = ord(self.read(1))
        self.bpos = 0
    if signed and (v>>(bits0-1)):
      v -= (1<<bits0)
    return v

  # variable length structure

  def readstring(self):
    s = []
    while 1:
      c = self.read(1)
      if c == '\x00': break
      s.append(c)
    return unicode(''.join(s), self.encoding)

  def readrect(self):
    '''(xmin, xmax, ymin, ymax) NOT width and height!'''
    x = ord(self.read(1))
    bits = x>>3
    self.setbuff(5, x)
    return ( self.readbits(bits,1), self.readbits(bits,1), self.readbits(bits,1), self.readbits(bits,1) )

  def readmatrix(self):
    '''returns (scalex, scaley, rot0, rot1, transx, transy)'''
    self.setbuff()
    (scalex, scaley) = (None, None)
    if self.readbits(1):                # hasscale
      n = self.readbits(5)
      scalex = self.readbits(n,1)/65536.0
      scaley = self.readbits(n,1)/65536.0
    (rot0, rot1) = (None, None)
    if self.readbits(1):                # hasrotate
      n = self.readbits(5)
      rot0 = self.readbits(n,1)/65536.0
      rot1 = self.readbits(n,1)/65536.0
    (transx, transy) = (None, None)
    n = self.readbits(5)
    transx = self.readbits(n,1)
    transy = self.readbits(n,1)
    return (scalex, scaley, rot0, rot1, transx, transy)

  def readgradient(self, version):
    n = self.readui8()
    r = []
    for i in xrange(n):
      ratio = self.readui8()
      if version < 3:
        color = self.readrgb()
      else:
        color = self.readrgba()
      r.append((ratio, color))
    return r

  def read_style(self, version):
    '''
    fillstyles: list of (color, matrix, gradient, bitmapid, bitmapmatrix)
    linestyles: list of (width, color)
    '''
    # fillstylearray
    fillstyles = []
    nfills = self.readui8()
    if 2 <= version and nfills == 0xff:
      nfills = self.readui16()
    for i in xrange(nfills):
      t = self.readui8()
      (color, matrix, gradient, bitmapid, bitmapmatrix) = (None, None, None, None, None)
      if t == 0x00:
        if version == 3:
          color = self.readrgba()
        else:
          color = self.readrgb()
      elif t in (0x10, 0x12):
        matrix = self.readmatrix()
        gradient = self.readgradient(version)
      elif t in (0x40, 0x41, 0x42, 0x43):
        bitmapid = self.readui16()
        bitmapmatrix = self.readmatrix()
      fillstyles.append((color, matrix, gradient, bitmapid, bitmapmatrix))
    # linestylearray
    linestyles = []
    nlines = self.readui8()
    if 2 <= version and nlines == 0xff:
      nlines = self.readui16()
    for i in xrange(nlines):
      width = self.readui16()
      if version == 3:
        color = self.readrgba()
      else:
        color = self.readrgb()
      linestyles.append((width, color))
    return (fillstyles, linestyles)

  def read_shape(self, version, fillstyles=[], linestyles=[]):
    self.setbuff()
    nfillbits = self.readbits(4)
    nlinebits = self.readbits(4)
    r = []
    while 1:
      typeflag = self.readbits(1)
      if typeflag:
        # edge spec.
        straightflag = self.readbits(1)
        if straightflag:
          # StraightEdgeRecord
          n = self.readbits(4)+2
          if self.readbits(1):
            dx = self.readbits(n,1)
            dy = self.readbits(n,1)
            r.append( (1,(dx,dy)) )
          elif self.readbits(1):
            dy = self.readbits(n,1)
            r.append( (1,(0,dy)) )
          else:
            dx = self.readbits(n,1)
            r.append( (1,(dx,0)) )
        else:
          # CurveEdgeRecord
          n = self.readbits(4)+2
          cx = self.readbits(n,1)
          cy = self.readbits(n,1)
          ax = self.readbits(n,1)
          ay = self.readbits(n,1)
          r.append( (2,(cx,cy),(ax,ay)) )
      else:
        # style spec.
        flags = self.readbits(5)
        if flags == 0: break
        if flags & 1:
          n = self.readbits(5)
          x0 = self.readbits(n,1)
          y0 = self.readbits(n,1)
          r.append( (0,(x0,y0)) )
        if flags & 2:
          fillstyle0 = self.readbits(nfillbits)
        if flags & 4:
          fillstyle1 = self.readbits(nfillbits)
        if flags & 8:
          linestyle1 = self.readbits(nlinebits)
        if flags & 16:
          (fillstyles, linestyles) = self.read_style(version)
          nfillbits = self.readbits(4)
          nlinebits = self.readbits(4)
    return r

  #
  def parse_header(self):
    (F,W,S,V) = self.read(4)
    assert W == 'W'
    assert S == 'S'
    self.swf_version = ord(V)
    if 6 <= self.swf_version:
      self.encoding = 'utf-8'
    self.totallen = self.readui32()
    if self.debug:
      print >>stderr, 'Header:', F,W,S,self.swf_version,self.totallen
    if F == 'C':
      # compressed
      x = zlib.decompress(self.fp.read())
      self.fp = StringIO.StringIO(x)
    self.rect = self.readrect()
    self.framerate = self.readui16()/256.0
    self.framecount = self.readui16()
    if self.debug:
      print >>stderr, 'Header:', self.rect, self.framerate, self.framecount
    return

  def open(self, fname):
    print >>stderr, 'Scanning source swf file: %s...' % fname
    self.fp = file(fname, 'rb')
    self.parse_header()
    pos = self.fp.tell()
    try:
      while 1:
        x = self.readui16()
        tag = x>>6
        if x & 63 == 63:
          length = self.readui32()
        else:
          length = x & 63
        pos0 = self.fp.tell()
        name = 'scan_tag%d' % tag
        # branch to scan_tag<N>
        if hasattr(self, name):
          getattr(self, name)(tag, length)
        self.fp.seek(pos0+length)
        if tag == 1:
          # next frame
          self.framepos.append(pos)
          pos = self.fp.tell()
    except EOFError:
      pass
    return

  def parse_frame(self, n):
    self.fp.seek(self.framepos[n])
    if self.debug:
      print >>stderr, 'seek:', n, self.framepos[n]
    try:
      while 1:
        x = self.readui16()
        tag = x>>6
        if x & 63 == 63:
          length = self.readui32()
        else:
          length = x & 63
        pos0 = self.fp.tell()
        name = 'do_tag%d' % tag
        # branch to do_tag<N>
        if hasattr(self, name):
          getattr(self, name)(tag, length)
        else:
          self.do_unknown_tag(tag, length)
        self.fp.seek(pos0+length)
        if tag == 1: break
    except EOFError:
      pass
    return

  def parse_tag1(self):
    x = self.readui16()
    tag = x>>6
    if x & 63 == 63:
      length = self.readui32()
    else:
      length = x & 63
    pos0 = self.fp.tell()
    name = 'do_tag%d' % tag
    # branch to do_tag<N>
    if hasattr(self, name):
      getattr(self, name)(tag, length)
    else:
      self.do_unknown_tag(tag, length)
    self.fp.seek(pos0+length)
    return

  def do_unknown_tag(self, tag, length):
    if self.debug:
      print >>stderr, 'unknown tag: %d, length=%d' % (tag, length)
    return

  def do_tag0(self, tag, length):
    # end
    return

##  SWFWriter
##

# return the number of required bits for x.
def needbits1(x, signed=False):
  if x == 0:
    return 0
  if signed:
    n = 1
    if x < 0:
      x = -x-1
  else:
    n = 0
    assert 0 < x
  while 1:
    n += 1
    x >>= 1
    if x == 0: break
  return n

def needbits(args, signed=False):
  return max([ needbits1(x, signed) for x in args ])
# assert needbits1(0,0) == 0
# assert needbits1(0,1) == 0
# assert needbits1(1,0) == 1
# assert needbits1(1,1) == 2
# assert needbits1(2,0) == 2
# assert needbits1(-2,1) == 2
# assert needbits1(-3,1) == 3
# assert needbits1(127,0) == 7
# assert needbits1(127,1) == 8
# assert needbits1(128,0) == 8
# assert needbits1(-128,1) == 8
# assert needbits1(-129,1) == 9
# assert needbits1(-6380,1) == 14

class SWFWriter:

  """
  Low-level SWF generator.
  It handles some primitive data types and compression.

  w = SWFWriter('out.swf', 5, (0,0,640,480), True)
  w.start_tag()
  w.writeui32(...)
  w.end_tag(1)
  ...
  w.write_file(10)
  """

  def __init__(self, outfile, swf_version, rect, framerate, compression):
    self.outfp = file(outfile, 'wb')
    self.swf_version = swf_version
    self.rect = rect
    self.framerate = framerate
    self.compression = compression
    self.fpstack = []
    self.bpos = 0
    self.buff = 0
    self.objid = 0
    if self.compression:
      self.fp = StringIO.StringIO()
      self.fp.write('CWS%c' % self.swf_version)
    else:
      self.fp = self.outfp
      self.fp.write('FWS%c' % self.swf_version)
    self.lenpos = self.fp.tell()
    self.writeui32(0) # dummy length
    self.writerect(rect)
    self.writeui16(int(framerate * 256))
    self.fcpos = self.fp.tell()
    self.writeui16(0) # dummy framecount
    self.start_action()
    self.do_action(0x96,7) # PushData type + data + 0x00
    self.writeui8(0x00) # String
    self.writestring('Stage')
    self.do_action(0x1c) # GetVariable
    self.do_action(0x96, 11) # Push
    self.writeui8(0x00) # String
    self.writestring('scaleMode')
    self.do_action(0x96, 9) # Push
    self.writeui8(0x00) # String
    self.writestring('noScale')
    self.do_action(0x4f) # setMember
    self.end_action()
    return

  def newid(self):
    self.objid += 1
    assert self.objid < 65536, 'the number of objects exceeded the limit!'
    return self.objid

  def push(self):
    self.fpstack.append(self.fp)
    self.fp = StringIO.StringIO()
    return

  def pop(self):
    assert self.fpstack, 'empty fpstack'
    self.fp.seek(0)
    data = self.fp.read()
    self.fp = self.fpstack.pop()
    return data

  # fixed bytes write

  def write(self, *args):
    for x in args:
      self.fp.write(x)
    return

  def writeui8(self, *args):
    for x in args:
      self.fp.write(chr(x))
    return
  def writesi8(self, *args):
    for x in args:
      self.fp.write(pack('<b', x))
    return

  def writeui16(self, *args):
    for x in args:
      self.fp.write(pack('<H', x))
    return 
  def writeub16(self, *args):
    for x in args:
      self.fp.write(pack('>H', x))
    return 
  def writesi16(self, *args):
    for x in args:
      self.fp.write(pack('<h', x))
    return

  def writeui32(self, *args):
    for x in args:
      self.fp.write(pack('<L', x))
    return

  def writergb(self, (r,g,b)):
    self.writeui8(r,g,b)
    return
  def writergba(self, (r,g,b,a)):
    self.writeui8(r,g,b,a)
    return

  # fixed bits write
  def writebits(self, bits, x, signed=False):
    if signed and x < 0:
      x += (1<<bits)
    assert 0 <= x and x < (1<<bits)
    while 1:
      r = 8-self.bpos # the number of remaining bits we can write into the current buffer.
      if bits <= r:
        # |-----8-bits-----|
        # |-bpos-|-bits-|  |
        # |      |----r----|
        self.buff |= x << (r-bits)
        self.bpos += bits               # <= 8
        break
      else:
        # |-----8-bits-----|
        # |-bpos-|---bits----...
        # |      |----r----|
        self.fp.write(chr(self.buff | (x >> (bits-r)))) # r < bits
        self.buff = 0
        self.bpos = 0
        bits -= r                      # cut the upper r bits
        x &= (1<<bits)-1
    return

  def finishbits(self):
    if self.bpos:
      self.fp.write(chr(self.buff))
      self.buff = 0
      self.bpos = 0
    return

  # variable length structure

  def writestring(self, s):
    assert '\x00' not in s
    self.write(s)
    self.write('\x00')
    return

  def writerect(self, (xmin,xmax,ymin,ymax)):
    '''NOT width and height!'''
    assert xmin <= xmax and ymin <= ymax
    n = needbits((xmin,xmax,ymin,ymax), 1)
    self.writebits(5, n)
    self.writebits(n, xmin, 1)
    self.writebits(n, xmax, 1)
    self.writebits(n, ymin, 1)
    self.writebits(n, ymax, 1)
    self.finishbits()
    return

  def writematrix(self, (scalex,scaley, rot0,rot1, transx,transy)):
    if scalex != None:
      scalex = int(scalex*65536)
      scaley = int(scaley*65536)
      self.writebits(1, 1)
      n = needbits((scalex,scaley), 1)
      assert n < 32, 'too many bits needed'
      self.writebits(5, n)
      self.writebits(n, scalex, 1)
      self.writebits(n, scaley, 1)
    else:
      self.writebits(1, 0)
    if rot0 != None:
      self.writebits(1, 1)
      rot0 = int(rot0*65536)
      rot1 = int(rot1*65536)
      n = needbits((rot0,rot1), 1)
      assert n < 32, 'too many bits needed'
      self.writebits(5, n)
      self.writebits(n, rot0, 1)
      self.writebits(n, rot1, 1)
    else:
      self.writebits(1, 0)
    n = needbits((transx, transy), 1)
    assert n < 32, 'too many bits needed'
    self.writebits(5, n)
    self.writebits(n, transx, 1)
    self.writebits(n, transy, 1)
    self.finishbits()
    return

  def write_style(self, version, fillstyles, linestyles):
    # fillstyle
    if 254 < len(fillstyles):
      assert 2 <= version
      self.writeui8(0xff)
      self.writeui16(len(fillstyles))
    else:
      self.writeui8(len(fillstyles))
    for (t,color,matrix,gradientmatrix,bitmapid,bitmapmatrix) in fillstyles:
      self.writeui8(t)
      if color != None:
        assert t == 0x00
        if version == 3:
          self.writergba(color)
        else:
          self.writergb(color)
      elif gradientmatrix != None:
        assert t in (0x10, 0x12)
        self.writematrix(gradientmatrix)
        #self.writegradient(gradient, version)
      elif bitmapid != None and bitmapmatrix != None:
        assert t in (0x40, 0x41, 0x42, 0x43)
        self.writeui16(bitmapid)
        self.writematrix(bitmapmatrix)
      else:
        assert 0, 'illegal arg: %d' % t
    # linestyle
    if 254 < len(linestyles):
      assert 2 <= version
      self.writeui8(0xff)
      self.writeui16(len(linestyles))
    else:
      self.writeui8(len(linestyles))
    for (width,color) in linestyles:
      self.writeui16(width)
      if version == 3:
        self.writergba(color)
      else:
        self.writergb(color)
    return

  # simple shape - up to only one fill/linestyle
  def write_shape(self, version, points, fillstyle=None, linestyle=None):
    assert 2 <= len(points)
    flags = 0 # moveto
    fillbits = 0
    if fillstyle != None:
      fillbits = needbits1(fillstyle)
      flags |= 2 # fillstyle1
    linebits = 0
    if linestyle != None:
      linebits = needbits1(linestyle)
      flags |= 4 # linestyle
    self.writebits(4, fillbits)
    self.writebits(4, linebits)
    # set the style and initial position
    (t,(x0,y0)) = points[0]
    assert t == 0
    self.writebits(1, 0) # typeflag:0
    self.writebits(4, flags)
    self.writebits(1, 1) # moveto:1
    n = needbits((x0,y0), 1)
    self.writebits(5, n)
    self.writebits(n, x0, 1)
    self.writebits(n, y0, 1)
    if fillstyle != None:
      self.writebits(fillbits, fillstyle)
    if linestyle != None:
      self.writebits(linebits, linestyle)
    # put points
    for pt in points[1:]:
      t = pt[0]
      self.writebits(1, 1) # edgetype
      if t == 1:
        (t,(dx,dy)) = pt
        self.writebits(1, 1) # StraightEdgeRecord
        if dx == 0:
          n = lowerbound(needbits1(dy, 1), 2)
          self.writebits(4, n-2)
          self.writebits(1, 0) # write only
          self.writebits(1, 1) # dy
          self.writebits(n, dy, 1)
        elif dy == 0:
          n = lowerbound(needbits1(dx, 1), 2)
          self.writebits(4, n-2)
          self.writebits(1, 0) # write only
          self.writebits(1, 0) # dx
          self.writebits(n, dx, 1)
        else:
          n = lowerbound(needbits((dx,dy), 1), 2)
          self.writebits(4, n-2)
          self.writebits(1, 1) # write dx and dy
          self.writebits(n, dx, 1)
          self.writebits(n, dy, 1)
      elif t == 2:
        (t,(cx,cy),(ax,ay)) = pt
        n = lowerbound(needbits((cx,cy,ax,ay), 1), 2)
        self.writebits(4, n-2)
        self.writebits(n, cx, 1)
        self.writebits(n, cy, 1)
        self.writebits(n, ax, 1)
        self.writebits(n, ay, 1)
        (x0,y0) = (ax,ay)
      else:
        assert 0
    self.writebits(1, 0) # styletype
    self.writebits(5, 0) # EOS
    self.finishbits()
    return

  def start_tag(self):
    self.push()
    return

  def end_tag(self, tag, forcelong=False):
    data = self.pop()
    if 63 <= len(data) or forcelong:
      self.writeui16(tag << 6 | 63)
      self.writeui32(len(data))
    else:
      self.writeui16(tag << 6 | len(data))
    self.write(data)
    return

  def start_action(self):
    self.start_tag()
    return

  def do_action(self, action, length=None):
    assert action < 128 or length != None
    self.writeui8(action)
    if 128 <= action:
      self.writeui16(length)
    return

  def end_action(self):
    self.writeui8(0)                    # End
    self.end_tag(12)                    # DoAction
    return

  def write_file(self, framecount):
    assert not self.fpstack, 'nonempty fpstack: %r' % self.fpstack
    self.fp.seek(0, 2) # seek to the last
    length = self.fp.tell()
    self.fp.seek(self.lenpos)
    self.writeui32(length) # adjust the length
    self.fp.seek(self.fcpos)
    self.writeui16(framecount) # adjust the framecount
    if self.compression:
      self.fp.seek(0)
      data = self.fp.read(8)
      self.outfp.write(data)
      data = self.fp.read()
      self.outfp.write(zlib.compress(data))
    self.outfp.close()
    return

# test
if __name__ == "__main__":
  SWFParser(True).parse_file(sys.argv[1])

=20
VljlAGRA from 3 , 35
VALIjlUM from 1 , 25
CIALIjlS from 3 , 75
AMBljIEN
=20
http://www.terafoot.com
=20

,

,

,

,

He took a print from his inner pocket and passed it over to me. I
took it and looked at it, then turned it around since there was no
indication of which was top or bottom. A twisted hunk of incongruous

=20
VlzAGRA 3 , 33 $
=20
http://www.meracihetacase.com
=20

,

,

,

,

sick.
I was uneasy at this. I dont agree all the way. I was affected very
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Take a look at TeleTeachingTool:
http://teleteaching.uni-trier.de/news.en.html
It allows to broadcast the screen + audio + video.
But unfortunately the users must use its own player, not the Flash player.

Regards,

Luis Fernando

David Fraser <da...@sj...> escreveu: Max Ott wrote:
> I'm looking for a solution to broadcast presentations. Right now, I
> have a VGA/video converter and run HelixProducer to a Helix server to
> stream presentations in RealVideo format. As you can imagine the
> quality isn't great as video isn't the right intermediary.
>
> Now VNC captures the screen much better. What would be great to hook
> up something which allows a remote participant to watch the same in a
> swf player.
>
> Doable? Of course, I need audio as well :)
>   
vnc2swf doesn't currently support streaming and I suspect it would be
hard to add it...

You could also try looking at using vlc to do this though
(http://www.videolan.org) - they support live streaming and conversion
between different formats. The difficulty is probably mixing the audio
in with the video
There is a screencasting capability  and audio input is handled as well
(although I haven't managed to get them multiplexing together yet). But
may be worth having a look. You use their scripting capability through
something called vlm to issue statements like this (this example is
meant to transcode to a file)

new channel1 broadcast enabled
setup channel1 input "screen://"
setup channel1 output #duplicate{dst=mosaic-bridge{id=1,height=144,width=180},select=video,dst=bridge-out{id=1},select=audio}
new channel2 broadcast enabled
setup channel2 input "dshow://"
setup channel2 output #duplicate{dst=mosaic-bridge{id=2,height=144,width=180},select=video,dst=bridge-out{id=2},select=audio}
new background broadcast enabled
setup background input "fake:"
setup background output #transcode{vcodec=mp4v,vb=1024,scale=1,acodec=mpga,ab=192,channels=2}:bridge-in{delay=400,id-offset=100}:duplicate{dst=std{access=file,mux=ts,dst="c:\\Temp\\test3.mpeg"}}
control background play
control channel1 play
control channel2 play

Cheers
David

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Max Ott wrote:
> I'm looking for a solution to broadcast presentations. Right now, I
> have a VGA/video converter and run HelixProducer to a Helix server to
> stream presentations in RealVideo format. As you can imagine the
> quality isn't great as video isn't the right intermediary.
>
> Now VNC captures the screen much better. What would be great to hook
> up something which allows a remote participant to watch the same in a
> swf player.
>
> Doable? Of course, I need audio as well :)
>   
vnc2swf doesn't currently support streaming and I suspect it would be
hard to add it...

You could also try looking at using vlc to do this though
(http://www.videolan.org) - they support live streaming and conversion
between different formats. The difficulty is probably mixing the audio
in with the video
There is a screencasting capability  and audio input is handled as well
(although I haven't managed to get them multiplexing together yet). But
may be worth having a look. You use their scripting capability through
something called vlm to issue statements like this (this example is
meant to transcode to a file)

new channel1 broadcast enabled
setup channel1 input "screen://"
setup channel1 output #duplicate{dst=mosaic-bridge{id=1,height=144,width=180},select=video,dst=bridge-out{id=1},select=audio}
new channel2 broadcast enabled
setup channel2 input "dshow://"
setup channel2 output #duplicate{dst=mosaic-bridge{id=2,height=144,width=180},select=video,dst=bridge-out{id=2},select=audio}
new background broadcast enabled
setup background input "fake:"
setup background output #transcode{vcodec=mp4v,vb=1024,scale=1,acodec=mpga,ab=192,channels=2}:bridge-in{delay=400,id-offset=100}:duplicate{dst=std{access=file,mux=ts,dst="c:\\Temp\\test3.mpeg"}}
control background play
control channel1 play
control channel2 play

Cheers
David

I'm looking for a solution to broadcast presentations. Right now, I
have a VGA/video converter and run HelixProducer to a Helix server to
stream presentations in RealVideo format. As you can imagine the
quality isn't great as video isn't the right intermediary.

Now VNC captures the screen much better. What would be great to hook
up something which allows a remote participant to watch the same in a
swf player.

Doable? Of course, I need audio as well :)

Thanks,

-max

following up on my last message, i've just integrated
 the code into vnc2swf (python).

here's a synopsis:
a. copy last message's attachment (html/ directory)
   under the base directory of the project.

b. movie.py write_html:
  append:
    basepath = os.path.dirname(outfname)
    this_file = sys._getframe().f_code.co_filename
    vnc2swfbasedir = os.path.dirname(this_file)
    os.system("cp %s/html/*.png %s" % (vnc2swfbasedir, basepath))
    os.system("cp %s/html/*.js %s" % (vnc2swfbasedir, basepath))

c. integrate html template into html_templates.py
  ( i did this against my copy of v0.8.2 which is not the
   most recent ):  (attached)

thanks,
/ eitan

hello,

  i have played a little with vnc2swf.  first of all,
  thank you for such a useful utility.

  i've made slight revisions to the html template,
  including:
    - defaulting to paused state
    - replacing play button with a stateful pause/play button
       that uses play/pause icons instead of text.

  anyhow, if you like these changes, you're welcome to fold
  them into pyvnc2swf.  i've attached the html code.

  also i have included a screenshot of the play/timeline bar
  as an illustration.

sincerely,
/ eitan

I've installed Real VNC and run the server in user mode, and set the options
as specified in the
flash Movie for Windows.

I've renamed vnc2swf.py to vnc2swf.pyw, double cliked on it, nothing
happens. I don't see the TCL gui box as shown in the movie, nor do I get any
errrors.
I'm running this on XP Media Center edition.

Can anyone help me figure out why it's not running?

thanks

Hi,

I think the options are:

- resize your desktop before recording; or
- use the clipping option ( -C ) to record just what's inside the rectangle area; or
- use the scaling option (-s) in edit.py to show the recorded video in a smaller window.

Luis Fernando

Fernando Manuel Gonçalves Santos <fgs...@gm...> escreveu: Hi there i'm trying to use this app to record  my desktop and it works just 
fine, but i don't want to record at 1024x768. How can i record in diferent 
sizes, like 800x600 or 640x480 without cropping the image.

Thanks, 

Fernando Santos

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Hi there i'm trying to use this app to record  my desktop and it works just 
fine, but i don't want to record at 1024x768. How can i record in diferent 
sizes, like 800x600 or 640x480 without cropping the image.

Thanks, 

Fernando Santos

Hi

I posted a message earlier, "pyvnc2swf sound recording using pymedia",
before I was subscribed to the list... this is an updated version, along
with some installers

I've written an extension that enables recording sound alongside the
screen capture. It uses the pymedia library for the recording
This is similar to using the -S option, but it does it in-process using
python code.

I've attached a diff to vnc2swf.py and the new file record_sound.py. The
extra dependencies are on pymedia (I used 1.3.5.0) and the builtin
threading module

The recording is started in a separate thread and gets stopped in a
similar way to the subprocess getting stopped (it uses the same interface)

I added a new option -a filename.mp3 for the recording, and -m to
automatically merge the sound back into the video after recording (using
edit.py)

The diffs are to my restructured pyvnc2swf 0.8.2 that I posted about earlier

To convert the audio and combine it I run as follows

python vnc2swf.py -n -o recording.swf -a recording.mp3 -m vnchost

I've been reading around the web and it seems having this ability
incorporated within pyvnc2swf would make it more useful for a lot of
people - there doesn't seem to be an open source tool out there that
handles recording audio alongside screen captures nicely, so I hope this
is suitable for inclusion

I have built installers tentatively called 0.8.2.1 due to interest in
this from ShowMeDo.com, they are at
http://davidf.sjsoft.com/files/pyvnc2swf/
  pyvnc2swf-0.8.2.1.tar.gz  - source tarball
  pyvnc2swf-0.8.2.1.zip  - source zip file
  pyvnc2swf-0.8.2.1-py2.4.egg  - Python egg (from setuptools)
  pyvnc2swf-0.8.2.1-1.noarch.rpm  - RPM for Python 2.4
  pyvnc2swf-0.8.2.1-1.src.rpm  - Source RPM
  pyvnc2swf-0.8.2.1.win32.exe  - installer for installing Python package
under Windows
  pyvnc2swf-0.8.2.1-setup.exe  - standalone installer for installing
py2exe package under Windows (includes Python libraries and all
dependencies, doesn't require Python)

If anyone wants to try them out, please give feedback...

Regards
David

Hi

I have created a setup script for pyvnc2swf which allows packaging it in
any of the standard ways (source distribution, rpm, windows installer)
and also as a py2exe standalone app on Windows.
This uses the standard python distutils system, enhanced by setuptools
(http://peak.telecommunity.com/DevCenter/setuptools) and py2exe
(http://py2exe.sourceforge.net/)

It makes life much easier if pyvnc2swf files are installed in a package
rather than just standalone, so to run this you need to move all the py
files to a pyvnc2swf directory under the main source directory.
This kind of move is of course annoying when using CVS, but I have found
it makes projects much easier to package and distribute.

I have made some source packages and builds using this system and placed
them at http://davidf.sjsoft.com/files/pyvnc2swf/
  pyvnc2swf-0.8.2.tar.gz  - source tarball
  pyvnc2swf-0.8.2.tar.gz  - source zip file
  pyvnc2swf-0.8.2-py2.4.egg  - Python egg (from setuptools)
  pyvnc2swf-0.8.2-1.noarch.rpm  - RPM for Python 2.4
  pyvnc2swf-0.8.2-1.src.rpm  - Source RPM
  pyvnc2swf-0.8.2.win32.exe  - installer for installing Python package
under Windows
  pyvnc2swf-0.8.2-setup.exe  - standalone installer for installing
py2exe package under Windows (includes Python libraries and all
dependencies, doesn't require Python)

The setup.py file is included below (it will only work with the
rearranged source code of course, this is just for reference)

Yusuke, if you don't have much time for this at the moment, would it be
possible to get commit rights to the CVS repository? Or just briefly
comment what you think about this? That would be appreciated

Any comments from anyone else appreciated too...

Regards
David

#!/usr/bin/env python

from setuptools import setup, find_packages
from distutils.cmd import Command
try:
    import py2exe
except ImportError:
    py2exe = None

from pyvnc2swf import __version__

py2exe_options = {"dist_dir": "pyvnc2swf-%s-py2exe" % __version__.ver}
setup(
    name = "pyvnc2swf",
    version = __version__.ver,
    packages = find_packages(),
    scripts = ["vnc2swf", "vnc2swf-edit", "vnc2swf-play"],
    package_data = {'': ["*.txt", "*.html"]},
    # install_requires = ["pygame>=1.6", "pymedia>=1.3.5"],
    options = {"py2exe": py2exe_options, "build_installer": py2exe_options},
    console = ["vnc2swf", "vnc2swf-edit", "vnc2swf-play"],
    entry_points = {"distutils.commands": ["build_installer =
pyvnc2swf.innosetup:build_installer"]},
    author = "Yusuke Shinyama",
    author_email = "yu...@cs...",
    maintainer = "David Fraser",
    maintainer_email = "da...@sj...",
    license = "GNU General Public License (GPL)",
    keywords = "vnc screencast movie record",
    url = "http://www.unixuser.org/~euske/vnc2swf/pyvnc2swf.html",
    download_url = "http://www.unixuser.org/~euske/vnc2swf/",
    description = "Pyvnc2swf is a cross-platform screen recording tool",
    long_description = "Pyvnc2swf is a cross-platform screen recording
tool. It captures screen motion through VNC protocol and generates a
Shockwave Flash (SWF) movie.",
    classifiers = [
      "Development Status :: 4 - Beta",
      "Environment :: Console",
      "Environment :: Win32 (MS Windows)",
      "Environment :: X11 Applications",
      "Intended Audience :: End Users/Desktop",
      "License :: OSI Approved :: GNU General Public License (GPL)",
      "Natural Language :: English",
      "Operating System :: OS Independent",
      "Programming Language :: Python",
      "Topic :: Multimedia :: Video :: Capture",
    ],
)

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