Hi Sandeep,
even I am thinking to make a similar mediaplayer.
Please tell how you achieved it?
cygwin is needed for using JNI?
and how to proceed.
Thanks
kavitha
On Fri, Mar 12, 2010 at 11:07 AM, Sandeep Prakash <123sa...@gmail.com>wrote:
> Hi All,
>
> I was trying to mimic the MediaPlayer Java interface provided by the
> Android Framework by writing a similar Java-JNI layers. I have found
> one observation regarding this.
>
> case 1: The Java layer is very similar to the MediaPlayer.java code.
> But on the JNI side, I am creating a thread ("pthread" to be
> specific). This thread I will be using to send "start", "stop",
> "pause" etc commands to the mediaplayer class in cpp. In this case I
> am able to play the video file but Video is not visible. Audio is
> playing fine!!!
>
> case 2: Tha Java layer again is very similar to the MediaPlayer.java
> code. But now I will not create a thread, but I will be using the UI
> thread itself (JNI Layer) to send "start", "stop", "pause" etc
> commands to the mediaplayer class in cpp. Now both Audio-Video is
> playing fine.
>
> Why there is a difference in behaviour in these 2 cases? Is it because
> there is an extra thread in between the Java and the MediaPlayer
> service? Even if there is thread why the difference in behaviour?
>
> Kindly provide the reasons and the architecture used for rendering
> frames.
>
> Thanks in advance....
> Sandeep
>
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