VideoView ALWAYS works on 1st play, but not afterwards

joolzg · Apr 17, 2012

OK been playing with this for just under a week and still have not got it to play videos properly in full screen.

What I have found is when i run my app for the 1st time i ALWAYS get a full screen picture, its only when i try to change the stream to another one it fails.

I have check over 50 channels, 50 restarts and always i get the right video size.

So my init code

B4X:

Sub Globals
    ...
    Dim vv As VideoView
    ...
End Sub

B4X:

Sub Activity_Create(FirstTime As Boolean)
    ...
 vv.Initialize( "vv")
 Activity.AddView( vv, 0, 0, Activity.Width, Activity.Height)
End Sub

then my change streams

B4X:

   If vv.IsPlaying Then
      vv.Stop
   End If
   If show Then
      ShowChannelInfo
   End If
   If cCurrent.cRadio Then
      vv.SetBackgroundImage( radioBackground)
   Else
      vv.SetBackgroundImage( Null)
   End If
   vv.LoadVideo( "http", cCurrent.cUrl)
   vv.MediaControllerEnabled = cCurrent.cVOD

So I was wondering is there a way to delete the vv object and do a vv.initialise every channel change

joolz

margret · Apr 17, 2012

I have had to do this on some of my apps. When you change channels and load the new channel, you need about a half second timer that reloads the new channel and it will then load the correct size. So, you are loading and then reloading the new channel a half second between them. This is an issue in the Android VV. It is corrected I have found in ICS.

joolzg · Apr 17, 2012

Thanks for the info.

Have you a demo as ive tried adding thr .5 second and still seeing the same problem, or where to insert the delay.

between the vv.LoadVideo and vv.Play ?

joolz

margret · Apr 17, 2012

When the channel is changed and you have loaded the vv. Then you need a half second delay and then load the same channel again. So, you are loading the new channel twice.

joolzg · Apr 17, 2012

so

vv.Load
wait 1/2 second
vv.Load
vv.Play

joolz

margret · Apr 17, 2012

vv.load
vv.play
wait 1/2 second
vv.load 'same file again

joolzg · Apr 17, 2012

OK done what you said and this is my log out, time in ticks for

vv.LoadVideo
StartLoading #Test TG4
StartLoading Ticks:1334692565493
vv.Play
StartPlaying Ticks:1334692565503
StartLoading #Test TG4
vv.LoadVideo
StartLoading Ticks:1334692566013

vv.LoadVideo
StartLoading #Test TV3 (Ireland)
StartLoading Ticks:1334692596982
vv.Start
StartPlaying Ticks:1334692596992
vv.LoadVideo
StartLoading #Test TV3 (Ireland)
StartLoading Ticks:1334692597493

Any more ideas? please

joolz

margret · Apr 17, 2012

How did you create your delay? I see your ticks, was this with a timer? I have been using this for six months and it has worked on many devices. Can you post just your loading code section?

joolzg · Apr 17, 2012

B4X:

Sub StartStreaming( show As Boolean)
   If vv.IsPlaying Then
      vv.Stop
   End If
   If show Then
      ShowChannelInfo
   End If
   If cCurrent.cRadio Then
      vv.SetBackgroundImage( radioBackground)
   Else
      vv.SetBackgroundImage( Null)
   End If
   vv.MediaControllerEnabled = cCurrent.cVOD
   Log( "StartLoading " & cCurrent.cTitle)
   Log( "StartLoading Ticks:" & DateTime.Now)
   vv.LoadVideo( "http", cCurrent.cUrl)
   Log( "StartPlaying Ticks:" & DateTime.Now)
   vv.Play
   playTimer.Interval = 500
   playTimer.Enabled = True
End Sub

Sub Activity_Create(FirstTime As Boolean)
...
      playTimer.Initialize( "playtimer", 500)
...
End Sub

Sub playtimer_Tick
   playTimer.Enabled = False
   Log( "StartLoading " & cCurrent.cTitle)
   Log( "StartLoading Ticks:" & DateTime.Now)
   vv.LoadVideo( "http", cCurrent.cUrl)
End Sub

margret · Apr 17, 2012

OK, change the timer from 500 to 1000, if that don't work, change it to 2000 or more just for a test. It may be that your connection can not provide the data fast enough with the timer set to 500. You should see the video start playing, go blank for a split second and then start playing again. Let me know if this makes a difference.

joolzg · Apr 17, 2012

Here a demo file, can you get it working?

B4X:

'Activity module
Sub Process_Globals
   'These global variables will be declared once when the application starts.
   'These variables can be accessed from all modules.

End Sub

Sub Globals
   'These global variables will be redeclared each time the activity is created.
   'These variables can only be accessed from this module.
   Dim vv As VideoView
   Dim tt As Timer
   Dim video As Boolean
End Sub

Sub Activity_Create(FirstTime As Boolean)
   vv.Initialize( "vv")
   Activity.AddView( vv, 0, 0, 100%x, 100%y)
   tt.Initialize( "tt", 10000)
   tt_Tick
   tt.Enabled = True
End Sub

Sub tt_Tick
   vv.Stop
   If video Then
      vv.LoadVideo( "http", "http://02.spain.unistream.tv:4444/udp/239.100.200.1:1234")
   Else
      vv.LoadVideo( "http", "http://02.spain.unistream.tv:4444/udp/239.100.200.2:1234")
   End If
   vv.Play
   video = Not( video)
End Sub

Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

Ive tried from 10 seconds down

http://www.sendspace.com/file/psfvtu

joolz

margret · Apr 17, 2012

Im looking at it now, I will post back in a few.

joolzg · Apr 18, 2012

Got it working !!!!!!!!!

What i had to do was

vv.RemoveView
vv.Initailize( "vv")

before every stream change and it works perfectly

has a few problems with OSD but thanks to NJDUDE and tds this was fixed

joolz

margret · Apr 18, 2012

Yes, that works but the ratio is still off. One of the test channels in your code looks fine and the other look like 16:9 squeezed into 4:3 ratio. Do you see the same thing?

joolzg · Apr 18, 2012

just check them both as they are both correct

joolz

margret · Apr 18, 2012

They are both correct on mine at the current time. It was a different program when I saw this. Where did you find the channels?

joolzg · Apr 18, 2012

on a website in spain, they offered a demo of CNN, and when i saw the url i just changed the end address to 1 and hey free channels, you can use from 1 to 33 i think

joolz

VideoView ALWAYS works on 1st play, but not afterwards

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