I have been asked to capture both sound and screen as a video.

...

> I am new to JMF.

There are a number of tasks that should probably

be considered as suitable only for someone that

is experienced with JMF, and I would consider this

task to be one of them.

> I have been asked to capture both sound and screen as

> a video.

https://screensavers.dev.java.net/issues/show_bug.cgi?id=13

You might adapt the (ant based) screenshot task listed

here. It is designed to get a series of screenshots

of screensavers, but the same principles can be applied

to other components, or to the screen area in general.

Turn the images back into a MOV using JpegImagesToMovie.java

> The source for audio could be from mic or software or

> operating system.

Getting the sounds flowing through the system is a

lot harder than you might expect, here is my best effort..

http://www.physci.org/sound/audiotrace.html

A recent(ish) version of the source can be found

in AudioTrace.java linked from here..

http://www.physci.org/test/oscilloscope/

Note that code just intercepts the sound and draws a

trace on screen. It is left as an exercise for you

to figure how to store it to disk.

Also missing from that explanation, is a way to match

up the movie obtained, with the soundtrack that is

stored. Again - left as an exercise for the reader.

Though it might help to have a little Java based app.

on-screen at the beginning of the 'screen movie capture',

that shows a bright red (shrugs) dot, and simultaneously

plays a sound, so it is easy later, to synchronise the

movie and soundtrack.

> Any help is appreciated.

Dukes speak louder than words.

AndrewThompson64a at 2007-7-12 2:44:04 >

> Hi Andrew

> Good stuff.

No worries.

> AudioTrace gives me following exception

>

> javax.sound.sampled.LineUnavailableException: line

> with format PCM_SIGNED 44100.0 Hz, 16 bit, stereo, 4

> bytes/frame, little-endian not supported.

...

> org.physci.sound.AudioPlotPanel.<init>(AudioPlotPanel.

> java:102)

..at line 102 of the original source*, it is

setting an option on a JSlider, and the code is in

main(), ..

> at

> org.physci.sound.AudioTrace.main(AudioTrace.java:246)

..and line 246 is..

} else {

..so I can only assume the code you are using,

has been altered.

* Source at

http://www.physci.org/test/oscilloscope/AudioTrace.java

> I wrote some code to search for usable TargetDataLine

> I get the same exception

> I posted the code in Java Sound Forum

>

> http://forum.java.sun.com/thread.jspa?threadID=5167674

> &tstart=0

I answered it there.

AndrewThompson64a at 2007-7-12 2:44:04 >