[Vnc2swf-users] Unable to export flv to common format using edit.py or converting flv with ffmpeg

[Kristian E. H. <kri...@gm...>]

I would like to get an MPG video in the end.  I have done this many
times with lots of other software and flv files on Linux using either
ffmpeg or mencoder.  However, it appears to me that the FLV export
feature of vnc2swf outputs a non-standard FLV video.  I do wonder why
neither ffmpeg nor mencoder will decode the FLV to something else, but
it detects the video stream as unknown.  VLC also fails to open the
video stream, but plays the audio stream nicely.

Anyways, here's some output from some of my failed attempts...

khermans@hermbuntu-desktop:~/foss/pyvnc2swf-0.9.3/pyvnc2swf$ python
edit.py -d -t mpeg -a /home/khermans/Music/14\ -\ Paperback_Bible.mp3
-o /tmp/CEPT/iacrb_prac2.mpg /tmp/CEPT/iacrb_prac2.swf
Using pygame 1.7.1release
Reading mp3 file: /home/khermans/Music/14 - Paperback_Bible.mp3...
Input movie: version=5, size=1024x768, framerate=12fps, frames=1026,
duration=85.5s.
Output movie size: 1024x768
Scanning source swf file: /tmp/CEPT/iacrb_prac2.swf...
Creating MPEG: '/tmp/CEPT/iacrb_prac2.mpg': codec=mpeg2video,
size=1024x768, framerate=12.0
Traceback (most recent call last):
  File "edit.py", line 244, in <module>
    if __name__ == "__main__": sys.exit(main(sys.argv[1:]))
  File "edit.py", line 239, in main
    mp3seek=mp3seek, mp3skip=mp3skip)
  File "edit.py", line 86, in reorganize
    builder.build(r)
  File "/home/khermans/foss/pyvnc2swf-0.9.3/pyvnc2swf/output.py", line
999, in build
    self.start()
  File "/home/khermans/foss/pyvnc2swf-0.9.3/pyvnc2swf/output.py", line
942, in start
    self.stream.open()
  File "/home/khermans/foss/pyvnc2swf-0.9.3/pyvnc2swf/output.py", line
767, in open
    'id':  vcodec.getCodecID(self.mpeg_codec),
AttributeError: 'NoneType' object has no attribute 'getCodecID'

** OR **

khermans@hermbuntu-desktop:/tmp/CEPT$ file
iacrb_prac2.flviacrb_prac2.flv: Macromedia Flash data, version 7
khermans@hermbuntu-desktop:/tmp/CEPT$ ffmpeg -i iacrb_prac2.flv iacrb_prac2.mpg
FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2007 Fabrice Bellard, et al.
  configuration: --enable-gpl --enable-pp --enable-swscaler
--enable-pthreads --enable-libvorbis --enable-libtheora
--enable-libogg --enable-libgsm --enable-dc1394 --disable-debug
--enable-shared --prefix=/usr
  libavutil version: 1d.49.3.0
  libavcodec version: 1d.51.38.0
  libavformat version: 1d.51.10.0
  built on Jun  3 2007 20:59:25, gcc: 4.1.3 20070528 (prerelease)
(Ubuntu 4.1.2-9ubuntu2)
Input #0, swf, from 'iacrb_prac2.flv':
  Duration: 00:03:48.0, start: 0.000000, bitrate: 192 kb/s
  Stream #0.0: Audio: mp3, 44100 Hz, stereo, 192 kb/s
  Stream #0.1: Video: 0x0000, 12.00 fps(r)
picture size invalid (0x0)



So how can I get this video into some standard MPG format?  I wonder
why the Mozilla flash plugin can play this seemingly corrupted FLV
video that vnc2swf generates.  Any ideas?
-- 
Kristian Erik Hermansen
"I have no special talent. I am only passionately curious."