* Expose apiPreference constructor argument of VideoCapture to `…

…OpenCVFrameGrabber` (pull #1025)
bytedeco · Jul 3, 2018 · a57084e · a57084e
1 parent f8b5026
commit a57084e
Showing 1 changed file with 14 additions and 1 deletion.
diff --git a/src/main/java/org/bytedeco/javacv/OpenCVFrameGrabber.java b/src/main/java/org/bytedeco/javacv/OpenCVFrameGrabber.java
@@ -63,9 +63,17 @@ public OpenCVFrameGrabber(int deviceNumber) {
     public OpenCVFrameGrabber(File file) {
         this(file.getAbsolutePath());
     }
+    public OpenCVFrameGrabber(File file, int apiPreference) {
+      this(file.getAbsolutePath(), apiPreference);
+    }
     public OpenCVFrameGrabber(String filename) {
         this.filename = filename;
     }
+    public OpenCVFrameGrabber(String filename, int apiPreference) {
+      this.filename = filename;
+      this.apiPreference = apiPreference;
+    }
+
     public void release() throws Exception {
         stop();
     }
@@ -76,6 +84,7 @@ public void release() throws Exception {
 
     private int deviceNumber = 0;
     private String filename = null;
+    private int apiPreference = 0;
     private VideoCapture capture = null;
     private Mat returnMatrix = null;
     private final OpenCVFrameConverter converter = new OpenCVFrameConverter.ToMat();
@@ -171,7 +180,11 @@ public void release() throws Exception {
 
     public void start() throws Exception {
         if (filename != null && filename.length() > 0) {
-            capture = new VideoCapture(filename);
+            if (apiPreference > 0) {
+                capture = new VideoCapture(filename, apiPreference);
+            } else {
+                capture = new VideoCapture(filename);
+            }
         } else {
             capture = new VideoCapture(deviceNumber);
         }