TMediaPlayer is inherited from Sound Recorder included in Win XP SP2?

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4 total messages Started by Anthony Fri, 10 Nov 2006 12:45

#214

Author: Anthony
Date: Fri, 10 Nov 2006 12:45

27 lines
1973 bytes

Hi all,

As you may know, Sound Recorder in Accessories Program group provided
by Win XP is capable of recording .mp3 file directly from wav format by
using "Properties->Convert Now->Choose MPEG Layer-3->Ok".

I thought TMediaPlayer is from the Sound Recorder provided by Win XP.
However, I don't know how to run the above job in programming because
there is only one option in TMediaPlayer which is dtAutoSelect and
bringing PCM format file.

How can I do this job thru TMediaPlayer?

Or should I import the proper ActiveX control provided by Sound
Recorder in Win XP?
Actually I was searching for this ActiveX control in Delphi 7 IDE but I
couldn't find this in the list.

How can I do the same job in Delphi with the default components or
ActiveX control?


Please tell me your experience. It would be greatly appreciated.



Anthony

Re: TMediaPlayer is inherited from Sound Recorder included in Win XP SP2?

#215

Author: Remy Lebeau (TeamB)
Date: Fri, 10 Nov 2006 18:30

31 lines
1822 bytes

"Anthony" <anthony_nyc@hotmail.com> wrote in message
news:1163162752.562534.209250@h48g2000cwc.googlegroups.com...

> I thought TMediaPlayer is from the Sound Recorder provided by Win XP.

It is not.  What would give you that idea?

> However, I don't know how to run the above job in programming
> because there is only one option in TMediaPlayer which is dtAutoSelect
> and bringing PCM format file.

There is no way to do what you are asking for with TMediaPlayer.

> How can I do this job thru TMediaPlayer?

You cannot.

> Or should I import the proper ActiveX control provided by Sound
> Recorder in Win XP?

Sound Recorder does not expose an ActiveX control of its own.

> How can I do the same job in Delphi with the default components
> or ActiveX control?

You will have to find a third-party library to do what you need.  Or code to
the Win32 Multimedia API or DirectX API yourself.


Gambit

Re: TMediaPlayer is inherited from Sound Recorder included in Win XP SP2?

#216

Author: Michel Leunen
Date: Fri, 10 Nov 2006 20:30

16 lines
1425 bytes

Anthony wrote:

> How can I do this job thru TMediaPlayer?

You can't.
Look here for a way to convert wav to mp3:
http://www.leunen.com/cbuilder/wav2mp3.html

Michel
-- 
----------------------------------------
Michel Leunen
mailto: see my homepage.
C++Builder, BCC5.5.1 Web site:
http://www.leunen.com/
----------------------------------------

Re: TMediaPlayer is inherited from Sound Recorder included in Win XP SP2?

#217

Author: Mark Jacobs
Date: Mon, 13 Nov 2006 14:22

31 lines
2553 bytes

Anthony wrote:
> However, I don't know how to run the above job in programming because
> there is only one option in TMediaPlayer which is dtAutoSelect and
> bringing PCM format file.
>
> How can I do this job thru TMediaPlayer?

You can record using TMediaPlayer and I have a working application at 
http://jacobsm.com/mjsoft.htm#mjplyr which is a TMediaPlayer-based media 
player. It can record using codecs on your PC, but the MP3 ones seem to cause 
a problem when used to record. However, if you use the OGG codecs ( 
http://jacobsm.com/oggvorbisacm.zip ) you can record and I reckon the quality 
is better for the same level of compression.

TMediaPlayer has a method StartRecording() which assumes you have set up a 
file for recording by setting up the header prior to calling this method. 
Whatever is in the file is appended to once recording starts. Calling 
TMediaPlayer->Stop() followed by TMediaPlayer->Save() will then store the 
sound into the file. Setting up the header part of this file is the tricky 
bit, and I tend to use WAV headers as these are a bit easier to handle. 
Consequently, MJPlayer recordings are all in WAV format but internally 
compressed and decompressed using the codec you chose when you created the 
file. I can record OGG files of radio shows which are 24 hours long and yet 
take up only 150 MBytes.
-- 

To be aware is to care.
-
Mark Jacobs
DK Computing
http://www.dkcomputing.co.uk

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