Android -- 获取视频的第一帧缩略图
最编程
2024-03-08 13:50:38
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public static Bitmap createVideoThumbnail(String filePath) {
// MediaMetadataRetriever is available on API Level 8
// but is hidden until API Level 10
Class<?> clazz = null;
Object instance = null;
try {
clazz = Class.forName("android.media.MediaMetadataRetriever");
instance = clazz.newInstance();
Method method = clazz.getMethod("setDataSource", String.class);
method.invoke(instance, filePath);
// The method name changes between API Level 9 and 10.
if (Build.VERSION.SDK_INT <= 9) {
return (Bitmap) clazz.getMethod("captureFrame").invoke(instance);
} else {
byte[] data = (byte[]) clazz.getMethod("getEmbeddedPicture").invoke(instance);
if (data != null) {
Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
if (bitmap != null) return bitmap;
}
return (Bitmap) clazz.getMethod("getFrameAtTime").invoke(instance);
}
} catch (IllegalArgumentException ex) {
// Assume this is a corrupt video file
} catch (RuntimeException ex) {
// Assume this is a corrupt video file.
} catch (InstantiationException e) {
Log.e(TAG, "createVideoThumbnail", e);
} catch (InvocationTargetException e) {
Log.e(TAG, "createVideoThumbnail", e);
} catch (ClassNotFoundException e) {
Log.e(TAG, "createVideoThumbnail", e);
} catch (NoSuchMethodException e) {
Log.e(TAG, "createVideoThumbnail", e);
} catch (IllegalAccessException e) {
Log.e(TAG, "createVideoThumbnail", e);
} finally {
try {
if (instance != null) {
clazz.getMethod("release").invoke(instance);
}
} catch (Exception ignored) {
}
}
return null;
}