Hi,
I'm trying to sample frames from a video.
However, MediaMetadataRetriever.getFrameAtTime always returns the same
frame (the first).
I tried with some emulators (2.3.3 to 4.0.3) and some video formats
(including mp4 and 3gp which should be supported according to
documentation).
Here is a test code (saveBitmapToFile works well in many other locations
so I truest it).
MediaMetadataRetriever retriever = new MediaMetadataRetriever();
retriever.setDataSource(filePath);
String value =
retriever.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION);
long length = Long.parseLong(value);
for(int i = 0; i < length; i += 200)
{
Bitmap bitmap = retriever.getFrameAtTime(i);
saveBitmapToFile(bitmap, debugPath + i + ".jpg");
}
What am I doing wrong?
By the way, it looks that I'm not the first one bumped into this problem
http://stackoverflow.com/questions/10188938/how-to-get-the-frame-from-video-file-in-android
Thanks in advance
/Yaron
--
Yaron Reinharts
Smart Drive Applications
http://www.poncho.co.il/gateaway.php
https://market.android.com/details?id=com.poncho.gsm.gate.activities
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