Android Question mute audio in videoview

jazzzzzzz · Mar 22, 2014

I am receiving 4 rtsp video links simultaneously in a single screen using videoview in the audio library... I want to mute individual videos when clicking on a button... But videoview doesnot have an option to mute audio...i want to play audio of single stream at a time and mute others... How can i do that?

jazzzzzzz · Mar 22, 2014

I think this is how to solve it... Any one know how to do this...
http://stackoverflow.com/questions/12435275/mute-a-playing-video-by-videoview-in-android-application

jazzzzzzz · Mar 23, 2014

Any one...? I desperately need it...

Erel · Mar 23, 2014

You can use Phone.SetMute to mute any of the volume channels.

jazzzzzzz · Mar 23, 2014

Erel said:
You can use Phone.SetMute to mute any of the volume channels.

i think u dont understand what i mean

i dont want to set the volume of complete phone music down...i need to change the volume of one videoview outof 4

Dim v1,v2,v3,v4,v5,vf1 As VideoView
here i need something like "v1.muteaudio"
because all v1,v2,v3,v4 are playing video in single screen

Erel · Mar 23, 2014

Try this:

B4X:

'after you call VideoView1.Play
Dim r1, r2 As Reflector
r1.Target = VideoView1
r1.Target = r1.GetField("mMediaPlayer")
Dim mp As MediaPlayer
r2.Target = mp
r2.SetField("mp", r1.Target, "android.media.MediaPlayer")

mp.SetVolume(0,0)

jazzzzzzz · Mar 23, 2014

Erel said:

Try this:

B4X:

'after you call VideoView1.Play
Dim r1, r2 As Reflector
r1.Target = VideoView1
r1.Target = r1.GetField("mMediaPlayer")
Dim mp As MediaPlayer
r2.Target = mp
r2.SetField("mp", r1.Target, "android.media.MediaPlayer")

mp.SetVolume(0,0)

B4X:

Sub muteaudio_v1
    Dim r1, r2 As Reflector
    r1.Target = v1
    r1.Target = r1.GetField("mMediaPlayer")
    Dim mp As MediaPlayer
    r2.Target = mp
    r2.SetField("mp", r1.Target, "android.media.MediaPlayer")

    mp.SetVolume(0,0)
End Sub

this shows error on setfield line after running the program

Erel · Mar 23, 2014

Can you post the error message from the logs?

jazzzzzzz · Mar 23, 2014

Erel said:
Can you post the error message from the logs?

B4X:

LogCat connected to: HT22WV810549
--------- beginning of /dev/log/system


--------- beginning of /dev/log/main


** Activity (main) Create, isFirst = true **


** Activity (main) Resume **


Error occurred on line: 107 (main)
java.lang.IllegalArgumentException: invalid value for field


    at java.lang.reflect.Field.setField(Native Method)
    at java.lang.reflect.Field.set(Field.java)
    at anywheresoftware.b4a.agraham.reflection.Reflection.SetField(Reflection.java:401)
    at b4a.example.main._muteaudio_v1(main.java:697)
    at b4a.example.main._play(main.java:495)
    at b4a.example.main._button1_click(main.java:385)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:636)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:302)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:238)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:121)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:162)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:158)
    at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:66)
    at android.view.View.performClick(View.java)
    at android.view.View$PerformClick.run(View.java)
    at android.os.Handler.handleCallback(Handler.java)
    at android.os.Handler.dispatchMessage(Handler.java)
    at android.os.Looper.loop(Looper.java)
    at android.app.ActivityThread.main(ActivityThread.java)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java)
    at dalvik.system.NativeStart.main(Native Method)

B4X:

Sub muteaudio_v1
    Dim r1, r2 As Reflector
    r1.Target = v1
    r1.Target = r1.GetField("mMediaPlayer")
    Dim mp As MediaPlayer
    r2.Target = mp
    r2.SetField("mp", r1.Target, "android.media.MediaPlayer")

    mp.SetVolume(0,0)
End Sub

line 107 is "r2.SetField("mp", r1.Target, "android.media.MediaPlayer")"
v1 is my "videoview v1"

Erel · Mar 23, 2014

This code should work:

B4X:

Sub Activity_Create(FirstTime As Boolean)
   Dim vv As VideoView
   vv.Initialize("vv")
   Activity.AddView(vv, 0, 0, 100%X, 100%y)
   vv.LoadVideo(File.DirRootExternal, "DCIM/Camera/1.mp4")
   vv.Play
   CallSubDelayed2(Me, "MuteVideo", vv)
End Sub

Sub muteVideo (vv As VideoView)
   Dim r1, r2 As Reflector
  r1.Target = vv
  r1.Target = r1.GetField("mMediaPlayer")
   If r1.Target = Null Then
     CallSubDelayed2(Me, "MuteVideo", vv)
     Return
   End If
  Dim mp As MediaPlayer
  r2.Target = mp
  r2.SetField2("mp", r1.Target)
  mp.SetVolume(0,0)
End Sub

jazzzzzzz · Mar 23, 2014

Erel said:

This code should work:

B4X:

Sub Activity_Create(FirstTime As Boolean)
   Dim vv As VideoView
   vv.Initialize("vv")
   Activity.AddView(vv, 0, 0, 100%X, 100%y)
   vv.LoadVideo(File.DirRootExternal, "DCIM/Camera/1.mp4")
   vv.Play
   CallSubDelayed2(Me, "MuteVideo", vv)
End Sub

Sub muteVideo (vv As VideoView)
   Dim r1, r2 As Reflector
  r1.Target = vv
  r1.Target = r1.GetField("mMediaPlayer")
   If r1.Target = Null Then
     CallSubDelayed2(Me, "MuteVideo", vv)
     Return
   End If
  Dim mp As MediaPlayer
  r2.Target = mp
  r2.SetField2("mp", r1.Target)
  mp.SetVolume(0,0)
End Sub

That workssssss......Awesome work Erel.....By the way i understand nothing about the code you typed...Little help will be appreciated ..

Erel · Mar 23, 2014

It uses reflection to get a reference to the internal MediaPlayer of VideoView. The internal MediaPlayer is not immediately ready so CallSubDelayed is used to wait for it.

jazzzzzzz · Mar 23, 2014

So its the same thing that shown in the link i posted..... Any way it was pleasure to communicate with the real developer who created all this stuff.. Community is working well for me.. Also am suggesting my friend to buy this..

jazzzzzzz · Mar 24, 2014

Erel said:
It uses reflection to get a reference to the internal MediaPlayer of VideoView. The internal MediaPlayer is not immediately ready so CallSubDelayed is used to wait for it.

Erel one more help...
I have to full screen the video when i touch the video, so i created 4 panels for 4 videoviews ,when i play i can see only one panel cant see 3 other videos...if there is a panel beneath videoview i can simply write code inside "panel_click"..so thats my first problem(I wanna to get some thing linke v4.click)...
===================
one other thing is that

B4X:

Sub button5_click

    v1.SetLayout(51%x, 53%y,50%x,15%y)
    v2.SetLayout(0%x, 68%y,50%x,15%y)
    v3.SetLayout(51%x, 68%y,50%x,15%y)
  
    Activity.Invalidate
  
    CallSubDelayed2(Me, "muteVolume", v1)
    CallSubDelayed2(Me, "muteVolume", v2)
    CallSubDelayed2(Me, "muteVolume", v3)
  
    v4.pause
    v4.RemoveView
    Activity.AddView(v4, 0%x, 0%y, 100%x,100%y)
    v4.SetLayout(0%x,0%x,100%x,100%y)
    Activity.Invalidate
    v4.play
    CallSubDelayed2(Me, "fullVolume", v4)

End Sub

in above code am trying to make v4 to fullscreen when i press a button...here v1,v2,v3 videoviews setlayout function is making the video area into a smaller space and its working immediately....but if i simply gave "v4.SetLayout(0%x,0%x,100%x,100%y)" this does not works....But it works if i remove v4 view and connect once again...but v1,v2,v3 videoviews does not need to remove to make it smaller....... So the problem is "setlayout" can immediately make video to a smaller space ..but making it to a larger space is not working without reconnecting agin

above code is working good but removing view and adding it again make a lot of time to connect to video agin because am streaming a rtsp link..

Sorry for long post,I hope you understand what i need

Erel · Mar 24, 2014

Please start a new thread for this question.

jazzzzzzz · Mar 24, 2014

Erel said:
Please start a new thread for this question.

The question is in single project so I thought it wont be necessary to create new one..I have created one..

http://www.b4x.com/android/forum/threads/videoview-fullscreen-by-touch.39188/

jazzzzzzz · Mar 26, 2014

Erel said:
Please start a new thread for this question.

Erel your way for controlling audio is working good but only after removing layout and reconnecting again..its so bad that i cant control video whenever i want without reconnecting to my http stream....please find a solution..below code is working but by reconnecting but calling "CallSubDelayed2(Me, "Volume1", v1)" simply will not change anything

B4X:

Sub SeekBar1_ValueChanged (Value As Int, UserChanged As Boolean)
    vol1=Value
'    Msgbox(vol1,False)


    v1.stop
    v1.RemoveView
    Activity.AddView(v1, 0%x, 0%y, 100%x,100%y)
    v1.LoadVideo("http", a)
    v1.SetLayout(2%x, 15%y, 45%x,55%y)
    Activity.Invalidate
    CallSubDelayed2(Me, "Volume1", v1)
    v1.Play

   
End Sub

jazzzzzzz · May 13, 2014

Erel said:

This code should work:

B4X:

Sub Activity_Create(FirstTime As Boolean)
   Dim vv As VideoView
   vv.Initialize("vv")
   Activity.AddView(vv, 0, 0, 100%X, 100%y)
   vv.LoadVideo(File.DirRootExternal, "DCIM/Camera/1.mp4")
   vv.Play
   CallSubDelayed2(Me, "MuteVideo", vv)
End Sub

Sub muteVideo (vv As VideoView)
   Dim r1, r2 As Reflector
  r1.Target = vv
  r1.Target = r1.GetField("mMediaPlayer")
   If r1.Target = Null Then
     CallSubDelayed2(Me, "MuteVideo", vv)
     Return
   End If
  Dim mp As MediaPlayer
  r2.Target = mp
  r2.SetField2("mp", r1.Target)
  mp.SetVolume(0,0)
End Sub

Erel please help me its urgent...above code is working only for muting audio..but once it is muted i cant raise the volume up...but if i remove view and connect again it will get volume...that is not a good practice...so please gave solution fast...am in a hurry sorry...

jazzzzzzz · May 13, 2014

can you please check this link

http://stackoverflow.com/questions/13394876/muting-a-video-in-a-videoview

Erel · May 13, 2014

This code does the same as the code I posted above.

Android Question mute audio in videoview

Active Member

Active Member

Active Member

B4X founder

Active Member

B4X founder

Active Member

B4X founder

Active Member

B4X founder

Active Member

B4X founder

Active Member

Active Member

B4X founder

Active Member

Active Member

Active Member

Active Member

B4X founder

Similar Threads

Privacy & Transparency

Privacy & Transparency