Restore FrameCapture interface for backwards compatibility of older video triage modules

Core/src/org/sleuthkit/autopsy/corecomponents/FrameCapture.java

@@ -0,0 +1,46 @@
+/*
+ * Autopsy Forensic Browser
+ *
+ * Copyright 2013-2019 Basis Technology Corp.
+ * Contact: carrier <at> sleuthkit <dot> org
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.sleuthkit.autopsy.corecomponents;
+
+import java.io.File;
+import java.util.List;
+
+/**
+ * Interface used to capture frames from a video file.
+ *
+ * @deprecated This "extension point" is not currently supported.
+ */
+@Deprecated
+public interface FrameCapture {
+
+    /**
+     * Captures the specified number of frames from a video file.
+     *
+     * @param file      The video file to use
+     * @param numFrames The number of frames to capture. Note that the actual
+     *                  number of frames returned may be less than this number.
+     *                  Specifically, this may happen if the video is very
+     *                  short.
+     *
+     * @throws Exception If anything goes wrong.
+     * @return A list of VideoFrames representing the captured frames
+     */
+    List<VideoFrame> captureFrames(File file, int numFrames) throws Exception;
+
+}