1.在 Slideshowview.java
 
2.        @Override
        public void apply(GLCanvas canvas) {
            int viewWidth = getWidth();
            int viewHeight = getHeight();
 
            float initScale = Math.min((float)
                    viewWidth / mWidth, (float) viewHeight / mHeight);
            // M: if special SUB_TYPE, 按原始尺寸显示
 
/**************************************  Edit Start **********************************************/
            if (0 !=(mSubType & MediaObject.SUBTYPE_DRM_NO_RIGHT)) {
/***************************************Edit End ***********************************************/
 
                //this logic is familar with that of PositionController.java
                float minScale = MediatekFeature.getMinimalScale(viewWidth,
                                     viewHeight, mWidth, mHeight, mSubType);
                float tempScaleLimit = MediatekFeature.minScaleLimit(mSubType);
                float scaleLimit = tempScaleLimit > 0.0f ?

tempScaleLimit : 2.0f;
                minScale = Math.min(scaleLimit, minScale);
                initScale = minScale / (1 + SCALE_SPEED);
            }
 
            float scale = initScale * (1 + SCALE_SPEED * mProgress);