I obtain the same error, although the code works sometimes.
I use the following code:
-----------------
MediaMetadataRetriever mmr = new MediaMetadataRetriever();
Bitmap b = null;
try {
mmr.setDataSource(mSongFilePath);
b = mmr.captureFrame();
} catch (RuntimeException e) {
Log.e(TAG, "Error retrieving thumbnail in
MediaPlayerEngine.",
e);
}
-----------------
and receive the error
-----------------
08-31 12:32:31.227: DEBUG/dalvikvm(235): Trying to load lib /system/
lib/libmedia_jni.so 0x0
08-31 12:32:31.227: DEBUG/dalvikvm(235): Shared lib '/system/lib/
libmedia_jni.so' already loaded in same CL 0x0
08-31 12:32:31.507: INFO/dalvikvm(235): Method not found: '<init>'
'(ILjava/nio/Buffer;Z[B)V' in Landroid/graphics/Bitmap;
08-31 12:32:31.507: ERROR/(235): captureFrame: Bitmap constructor is
not found
08-31 12:32:31.517: DEBUG/AndroidRuntime(235): Shutting down VM
08-31 12:32:31.517: WARN/dalvikvm(235): threadid=3: thread exiting
with uncaught exception (group=0x40010e28)
08-31 12:32:31.517: ERROR/AndroidRuntime(235): Uncaught handler:
thread main exiting due to uncaught exception
08-31 12:32:31.527: ERROR/AndroidRuntime(235):
java.lang.NoSuchMethodError: <init>
08-31 12:32:31.527: ERROR/AndroidRuntime(235): at
android.media.MediaMetadataRetriever.captureFrame(Native Method)
----------
Can there be some synchronization issue if several threads try to
retrieve a thumbnail at the same time? Are we required to synchronize
access to the thumbnail retriever among all threads?
Peli
On 21 Aug., 14:51, SungSuh Park <[EMAIL PROTECTED]> wrote:
> MediaMetadataRetriever is not complicated to use.
> I created object, setDataSource andcaptureFrame.
> I played the same video file with MediaPlayer well.
>
> <code>
> MediaMetadataRetriever metaRetriever = new MediaMetadataRetriever();
>
> metaRetriever.setMode(MediaMetadataRetriever.MODE_CAPTURE_FRAME_ONLY);
> metaRetriever.setDataSource(VIDEO_FILEPATH);
> Bitmap bitmap = metaRetriever.captureFrame();
> metaRetriever.release();
>
> <error>
> ERROR/AndroidRuntime(754): Uncaught handler: thread main exiting due
> to uncaught exception
> ERROR/AndroidRuntime(754): java.lang.NoSuchMethodError: <init>
> ERROR/AndroidRuntime(754): at
> android.media.MediaMetadataRetriever.captureFrame(Native Method)
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