B4A Library RSVideoRecord Library!!!

Hello everyone,

Here is a new library where you can record videos using a panel and not using the standard camera.
The important thing about this library is that you respect the order of used methods!

I had trouble working with the screen quality and the panel gave me a "green-like overlaying- corrupt video" but the output worked when i used profile. However when working with setVideoSize, it worked, but gave me a bad quality video.

A sample is included that shows the Videorecorder and saves it.
Please try it out and try to improve it and see what suits.

Tomas
 

Attachments

Last edited:
Click to expand...
Front Camera

I found this library to record videos excellent,
I need to use the front camera, it is possible?
I saw this code that can help

int cameraType = 1; // front
camera = Camera.open(cameraType);

m_recorder = new MediaRecorder();
m_recorder.setPreviewDisplay(m_BeMeSurface);
m_recorder.setCamera(camera);


Many Thanks
Gaucho
 
Last edited:
I get:

Code: 
** Activity (main) Resume **

** Activity (main) Pause, UserClosed = false **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
Ready event fired, success = true
main_record_ready (java line: 388)
java.lang.NullPointerException
    at com.rootsoft.videorecord.VideoRecord.StartPreview(VideoRecord.java:115)
    at anywheresoftware.b4a.samples.camera.main._record_ready(main.java:388)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:525)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:167)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:155)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:151)
    at com.rootsoft.videorecord.VideoRecord$1.surfaceCreated(VideoRecord.java:81)
    at android.view.SurfaceView.updateWindow(SurfaceView.java:571)
    at android.view.SurfaceView.access$000(SurfaceView.java:86)
    at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:175)
    at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:833)
    at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1860)
    at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
    at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
    at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
    at android.view.Choreographer.doCallbacks(Choreographer.java:562)
    at android.view.Choreographer.doFrame(Choreographer.java:532)
    at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
    at android.os.Handler.handleCallback(Handler.java:730)
    at android.os.Handler.dispatchMessage(Handler.java:92)
    at android.os.Looper.loop(Looper.java:137)
    at android.app.ActivityThread.main(ActivityThread.java:5103)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:525)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
    at dalvik.system.NativeStart.main(Native Method)
java.lang.NullPointerException
 
Last edited:
It works on my Xperia Play (using the outer/back camera) but not my Nexus 7 which only has a front camera. Perhaps that's the issue? How would I switch to the back one, before record.StartPreview?
 
I've redone the example with some more error handling, and made it so you can re-record after viewing the video, and delete the video when done.
I also merged the init and prepare stages, and added some state tracking (is it attached to a panel? is it recording? I'd also like to suggest these be added to the library itself, as well as letting us select which camera to use before the preview starts, it's not letting me set the value for it)
 

Attachments

Hi,

great libary. I saw that there is a special method called setOutputFile2. It seems that this method can stream the video via network to a target device. The documentation says that we should not use this method yet. Is there any progress?

I would like to record a video locally and stream a preview to a remote device. Or is there any other possibilty?

Thank you!
 
@XverhelstX Could you please add an _preview(Data() As Byte) Event to your great libary (like Erel in the Camera lib) ? This should be triggered if the preview element changes during recording to access direct the data.

Thank you!
 
@Xverhelst, Hi,

All works fine as long as I use 640 x 480 resolution on both phone and tablet.
Anyway, no problem, just a question: don't know what exactly your lib wraps,
but is there any means of overlaying text on the recorded video?

Thanks & Cheers
 
Hello,

I've trying to use this very usefull library, but came across some problems.

First I' would like to convert all steps into one.

I've made some atempts, and they work perfectly all the time under debug mode but not in release mode. It's like it needed some pause between steps.

Actually, in the sample provided, if we go trough the steps very quickly the same error occurs.

So I've implemented a pause (not very good practise, I know, but I wanted to see)

The result is uncertain. Some times it works, some times it doesn't.

Can someone help me. I really need something like this, but steps have to be merged. One click to record, one click to stop, which I think is the logical way.

Thanks very much.

EDIT

In the phone I get an error on video start.
In the tablet I get Java.io.IOexception : Invalid Preview surface ****Solved

demo works ok on both
 
Last edited:
Anyone get this to work on the front camera?

I tried changing some values on 'record.VideoSource = 1' but that seems to do nothing.

help... :eek:
 
Hello @XverhelstX, thank you for uploading this library.
Firstly I was wondering if you know of anyway that the recording can also record what's in a label that has been added to the Panel1 as a view? I already added a label with a timer before I saw @vb1992 overlay example. Both of which works in live view but neither encodes the respective overviews into the video, thus all that is played back is the raw video. In your original post you said 'Here is a new library where you can record videos using a panel'. I incorrectly presumed that any views added to the panel (Panel1) would also be recorded, but they are not.

Secondly your example crashed on Android 5.0 Lollipop when I click start but works perfect in KitKat :)

Thanks in advance...
 
Last edited:
Hi, is it possible to record current time for example in the left corner?

thx
 
Hello guys,
how can i turn around the panel? The "camera-view" is wrong. I neet to rotate the panel (90 degrees).
thx
 
Hello guys,
i found the problem. This Camera only supports "SupportedOrientations: landscape". What i have to do to support all orientations?

thx
 
XverhelstX said:
Hello everyone,

Here is a new library where you can record videos using a panel and not using the standard camera.
The important thing about this library is that you respect the order of used methods!

I had trouble working with the screen quality and the panel gave me a "green-like overlaying- corrupt video" but the output worked when i used profile. However when working with setVideoSize, it worked, but gave me a bad quality video.

A sample is included that shows the Videorecorder and saves it.
Please try it out and try to improve it and see what suits.

Tomas
Click to expand...

How to use this on front camera?
 
XverhelstX said:
Hello everyone,

Here is a new library where you can record videos using a panel and not using the standard camera.
The important thing about this library is that you respect the order of used methods!

I had trouble working with the screen quality and the panel gave me a "green-like overlaying- corrupt video" but the output worked when i used profile. However when working with setVideoSize, it worked, but gave me a bad quality video.

A sample is included that shows the Videorecorder and saves it.
Please try it out and try to improve it and see what suits.

Tomas
Click to expand...

Hi, I have just used your code and I like it. How does one improve the quality of the video and is it not possible to just have the whole record process in a record/stop button process?
 
XverhelstX said:
Hello everyone,

Here is a new library where you can record videos using a panel and not using the standard camera.
The important thing about this library is that you respect the order of used methods!

I had trouble working with the screen quality and the panel gave me a "green-like overlaying- corrupt video" but the output worked when i used profile. However when working with setVideoSize, it worked, but gave me a bad quality video.

A sample is included that shows the Videorecorder and saves it.
Please try it out and try to improve it and see what suits.

Tomas
Click to expand...

Hi, is it possible to have the video recording functionality based on 1 button click event to start and stop recording?
 
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