[Demo] How to play AVI files in editor

[Sergey Tkachenko]

aviplayer.zip

(3.7 KiB) Downloaded 2847 times

This demo shows:
- how to play AVI files in editor using TPanel and TMediaPlayer
- how to implement resizing of AVI players
- how to export documents containing AVI players to HTML
- how to allow saving and loading documents containing AVI players in RVF



This demo does not support drag&drop of controls. See here for details:
http://www.trichview.com/forums/viewtopic.php?t=157

[+] History of updates

2008-Dec-9: updated according to suggestions below:
- OnItemAction is used to reassign Display;
- hint with file name;
- Rewind button is shown instead of Stop
2018-Apr-8: compatibility with TRichView 17.3

[+] Old versions

http://www.trichview.com/support/files/aviplayer.zip - for TRichView 17.2 and older

[shmp]

Could something be done about this avi procedures? It doesn't seem to work within a table. I tried to figure out but its a very painstaking effort. Need someting less time-consuming.

Thanks in advance.

[Sergey Tkachenko]

Sorry, I do not understand your question. Which kind of "avi procedures"?

[Guest]

Sorry for being very brief. Within a table, the resize caused an error. If clicked anywhere other then the panel itself (even outside the table), the resize-procedure is activated thus causing an error. Only when the actual resizing is preformed should the resize-procedure be activated. Could you please check this for me.

Thanks.

[Sergey Tkachenko]

It looks like TMediaPlayer does not like changing Parent of its Display conntrol.
Use OnItemActionItem to reassign Display:

Code: Select all

procedure TForm1.RichViewEdit1ItemAction(Sender: TCustomRichView;
  ItemAction: TRVItemAction; Item: TCustomRVItemInfo; var Text: String;
  RVData: TCustomRVData);
var Panel, VideoPanel: TPanel;
    Player: TMediaPlayer;
begin
  if csDestroying in Sender.ComponentState then
    exit;
  if (ItemAction=rviaInserted) and (Item.StyleNo=rvsComponent) and
    (TRVControlItemInfo(Item).Control is TPanel) then begin
    Panel      := TRVControlItemInfo(Item).Control as TPanel;
    VideoPanel := Panel.Components[0] as TPanel;
    Player     := Panel.Components[1] as TMediaPlayer;
    Player.Display := VideoPanel;
  end;
end;

[shmp]

Many thanks. I will do that.

Cheers

[wvd_vegt]

Hi,

Not related to the problem but nice to add is the next line:

VideoPanel.Hint := Format('%s [%d x %d]', [ExtractFileName(Player.FileName), VideoPanel.Width, VideoPanel.Height]);

which will display a nice yellow hint when the mouse is over the videoplayer.

[Sergey Tkachenko]

One more suggestion: I just noticed that the TMediaPlayer's Stop button does not reset the movie position to the beginning (so I do not understand what's the difference between Stop and Pause buttons), so hiding additional buttons may be undesirable.

[Guest]

For the player button (namely stop button), I have to reset the position using on notify event - this is one of the incomplete thing in TMediaPlayer. The event is available in the player itself.

[gacek999]

Can we have embedded Windows Media Player control
like TMediaPlayer ? TMediaPlayer also is build on Windows
control, but I want to see original buttons, trackbar, and so on.
We often see this embedded players on websites.

[Sergey Tkachenko]

Create Windows Mediaplayer ActiveX: "Component | Import ActiveX Control", select "Windows Media Player (Version 1.0)", and install it. New control (TWindowsMediaPlayer) will be available in the Component Palette, the page "ActiveX".
Video file name can be specified in URL property. I did not try to insert it in TRichView, but I do not think that there will be problems. It even simpler than the example above, because the control includes both video screen and VCR buttons.

[hruslan2000]

How to save media source in RVF file with using TWindowsMediaPlayer?

Media player is registered with RegisterClasses([TWindowsMediaPlayer]).

[Sergey Tkachenko]

I think it can be done only by creating inherited component with new property, containing media data.
It's something that was done for the Flash ActiveX here:
http://www.trichview.com/forums/viewtopic.php?t=72

[ziclope]

Oh it´s great!

Exists any C++Builder demo ?

Regards

[Sergey Tkachenko]

http://www.trichview.com/support/files/ ... ashCPP.zip
It has problems with the flash (see that topic), but may be it will work properly for media player.