/*
 * bitmapList: list of transition images, which must contain at least three images (note: we recommend you compress the images to 720p or lower (as shown in the demo); otherwise, the memory usage may be too high, causing editing exceptions).
 * fps: frame rate of the video generated from the transition images in fps. Value range: 15–30.
 * Returned values:
 *       0: set successfully
 *      -1: failed to set. Please check whether the image list exists
 */
public int setPictureList(List<Bitmap> bitmapList, int fps);

/*
 * type: transition type. For more information, please see `TXVideoEditConstants`
 * Returned values:
 *       duration: transition video duration (note: the duration for the same image list may vary by transition animation. You can get the transition image duration here)
 */
public long setPictureTransition(int type)

/**
* Transition type for image to video conversion
*/
public static final int TX_TRANSITION_TYPE_LEFT_RIGHT_SLIPPING = 1;
public static final int TX_TRANSITION_TYPE_UP_DOWN_SLIPPING = 2;
public static final int TX_TRANSITION_TYPE_ROTATIONAL_SCALING = 3;
public static final int TX_TRANSITION_TYPE_ENLARGE = 4;
public static final int TX_TRANSITION_TYPE_NARROW = 5;
public static final int TX_TRANSITION_TYPE_FADEIN_FADEOUT = 6;