This page is obsolete. Now edit_vnc2swf is integrated into pyvnc2swf.
Edit_vnc2swf is an editing tool for vnc2swf.
This program allows you to chop, splice, crop, and attach an MP3 audio
to a .swf (ShockWave Flash) movie generated by vnc2swf.
Also this program does some optimization to reduce the movie size a little bit.
From version 0.2, it supports ScreenVideo format which was newly introduced in
Flash version 7. Generally with this new format a movie can lose the weight without losing the quality, and
it requires much less memory to play on your browser.
NOTICE: This program assumes a .swf file generated
only by vnc2swf or this program itself. When other types of .swf files are given
the behavior is not defined. (Generally you cannot manipulate other files in this way.)
TODO:
Since edit_vnc2swf.py is just a Python script, you don't need an extra compilation process.
To view a movie, just give a SWF filename.
To edit or snapshot a movie,
you have to specify one (or more) original movie and
exactly one output filename with '-o' option.
edit_vnc2swf.py determines its function mode
by the extension of the output filename.
With this function you can look up the frame number for chopping movies.
$ edit_vnc2swf.py input.swf
Or you can play only selected frames with '-f' option:
$ edit_vnc2swf.py -f 100-200,350- input.swf
Controls:
Playback timing is not accurate. Sound playback is not currently supported.
Specify *.swf as output filename.
You can combine the following options:
With '-f' option, you can select specific frames.
For example, to create a new movie which has frame #100-#200 and #350 to the end:
$ edit_vnc2swf.py -o out.swf -f 100-200,350- input.swf
Give '-V' option.
WARNING: This format is not supported by older Flash Players (<= 6).
You can also give '-c' option to enable compression.
(This is turned off by default since compression is not very effective in other cases,
as all images are already compressed by zlib algorithm.)
$ edit_vnc2swf.py -o out.swf -V -c input.swf
Just give multiple movie files. The obtained movie is played in the order you specified in command line.
NOTICE: If both files include MP3 files, its sample rate
and the number of channels (stereo or mono) must be same.
$ edit_vnc2swf.py -o out.swf input1.swf input2.swf
Using '-C' option instructs the program to cut some specific area of the movie.
Area is given in a similar format to X11 geometry.
By specifying '-H' option, it generates an HTML file to frame the obtained movie
to stdout.
$ edit_vnc2swf.py -o out.swf -H -C 100x100+10+10 input.swf > movie.html
Normally, the audio in the original movie is copied verbatim (if any). However you can attach a pre-recorded MP3 file as follows:
To cancel the audio, specify an empty file (or$ edit_vnc2swf.py -o out.swf -a voice.mp3 input.swf
/dev/null).
You can also give '-S' option to skip
some samples at the beginning of the sound:
$ edit_vnc2swf.py -o out.swf -a voice.mp3 -S 10000 input.swf
By specifying *.png as output filename,
you can save certain frames as still images:
In this case, frame #0, #1 and #5 are saved as$ edit_vnc2swf.py -o frame.png -f 0,1,5 input.swf
frame-0000.png, frame-0001.png and frame-0005.png, respectively.
By specifying *.mp3 as output filename,
you can save the MP3 stream in a movie as a separate file:
$ edit_vnc2swf.py -o voice.mp3 input.swf
There is an additional tool called edit_mp3.py,
which allows you to extract a certain part of an MP3 audio file
as follows:
$ ./edit_mp3.py '0-100,1000-2000' a.mp3 > b.mp3
You need to specify the range to extract by its "MP3 frame numbers", not sampling numbers or durations. Generally one MP3 frame has several milliseconds (with sampling rate = 44.1KHz) and they are stored separately in MP3 files. You can extract these frames without reencoding the audio, but you cannot change its bitrate, channels, or sampling rate.
Last Modified: Fri Oct 28 09:06:04 EDT 2005 (10/28, 22:06 JST)
Yusuke Shinyama