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 Reload video problem with ImageEnView		  New Topic  Reply to Topic
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fender75

10 Posts
Posted - Feb 08 2019 :  02:32:23  Show Profile  Reply
Hi
,
I'm having a very strange behavior with imageenview.

I have an imageEnView and I load a video like in the demo example and I play it with run
if the user press a key, I hide the imageenview and I show a TImage with a green light loaded
when the user press again, I load a new video , I hide the TImage and I show again the ImageEnView and
I play the new video. The problem is that when I start playing the new video, I still see the
video loaded before (the last frame before the new video load) then the new video plays well.

¿How can I avoid that? I don't know how should do it

When I have to play the new video, I don't want to see any frame from the video loaded before the "green light"

could you help me?

thanks so much

xequte

38611 Posts
Posted - Feb 08 2019 :  04:38:17  Show Profile  Reply
Hi

What code are you using to display the video (or which of the demos did you base it on)?

Nigel
Xequte Software
www.imageen.com
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fender75

10 Posts
Posted - Feb 08 2019 :  08:18:15  Show Profile  Reply
I used the videoplayer demo example to load and display the video
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xequte

38611 Posts
Posted - Feb 08 2019 :  16:07:17  Show Profile  Reply
Hi

I cannot reproduce that. Please show me your code.

Nigel
Xequte Software
www.imageen.com
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fender75

10 Posts
Posted - Feb 11 2019 :  02:59:20  Show Profile  Reply
Hi, I use this code to load and play a video

procedure Tfmain.Open1Click(Sender: TObject);
begin
  with ImageEnView1.IO.DShowParams do
  begin
    if State = gsRunning then
    begin
      Stop;
      Disconnect;
    end;

      FileInput := myFileName;
      EnableSampleGrabber := true;
      RenderAudio := true;
      Connect;
      if Show_Position_By_Frame then
        ImageEnView1.IO.DShowParams.TimeFormat := tfFrame;
      Position := 0;
//      Pause; // This shows first frame

      ImageEnView1.IO.DShowParams.Run;

  end;
end;



by the way, it is possible to do a playlist for playing 3 videos one after another? I don't know how exactly do this
thanks so much
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xequte

38611 Posts
Posted - Feb 11 2019 :  19:38:46  Show Profile  Reply
Hi

I'm afraid I cannot reproduce that issue using your code.

Please send me a simple demo that shows it.

To make a playlist, simply use the DShowEvent to detect when playback completes, and the start the next video
procedure Tfmain.ImageEnView1DShowEvent(Sender: TObject);

var
  event: integer;
begin
  if ImageEnView1.IO.DShowParams.Connected then
    while ImageEnView1.IO.DShowParams.GetEventCode(event) do
      case event of
        IEEC_COMPLETE:
          PlayNextVideo();
      end;
end;


Nigel
Xequte Software
www.imageen.com
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fender75

10 Posts
Posted - Feb 13 2019 :  03:22:00  Show Profile  Reply
Hi,
thanks so much!

Every time I play a video from the playlist I have to do execute all this code? 

 with ImageEnView1.IO.DShowParams do
  begin
    if State = gsRunning then
    begin
      Stop;
      Disconnect;
    end;

      FileInput := myFileName;
      EnableSampleGrabber := true;
      RenderAudio := true;
      Connect;
      if Show_Position_By_Frame then
        ImageEnView1.IO.DShowParams.TimeFormat := tfFrame;
      Position := 0;
//      Pause; // This shows first frame

      ImageEnView1.IO.DShowParams.Run;

  end;

I mean , stop, disconnect, renderaudio, connect....

thanks again
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xequte

38611 Posts
Posted - Feb 14 2019 :  04:05:34  Show Profile  Reply
Hi

You should not need to set these properties twice:

EnableSampleGrabber := true;
RenderAudio := true;

But the methods are all needed.

Nigel
Xequte Software
www.imageen.com
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fender75

10 Posts
Posted - Feb 19 2019 :  04:29:48  Show Profile  Reply
Hi,

I'm having some trouble because the IEEC_COMPLETE is called about 5 seconds later the video has been played. What should I do?
I'm playing the video the same way in the videoplayer demo

thanks

I'm using this code

procedure TFMasterMonitor.ImageEnView1DShowEvent(Sender: TObject);
var
  event: integer;
begin

  with ImageEnView1.IO.DShowParams do
    if Connected then
      while GetEventCode(event) do
        case event of
          IEEC_COMPLETE:
          begin

            Stop;
            Disconnect;
            ImageEnView1.ClearAll;

            application.ProcessMessages;

              if (playAllVideos) then
              begin
                inc (myLastVideoID);
                application.ProcessMessages;
                playAllVideosNext;
              end

          end;

      end;

end;

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xequte

38611 Posts
Posted - Feb 19 2019 :  14:39:29  Show Profile  Reply
Hi

Unfortunately ImageEn is simply passing on the events as it receives them from Windows.

Nigel
Xequte Software
www.imageen.com
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