* Call Pointer.trimMemory() on FFmpegFrameGrabber/Filter/Recorder close to reclaim system memory on Linux (issue #2334)

Author: saudet

CHANGELOG.md

@@ -1,4 +1,5 @@
 
+ * Call `Pointer.trimMemory()` on `FFmpegFrameGrabber/Filter/Recorder` close to reclaim system memory on Linux ([issue #2334](https://github.com/bytedeco/javacv/issues/2334))
  * Add `FrameRecorder.videoProfile` property ([pull #2361](https://github.com/bytedeco/javacv/pull/2361))
  * Upgrade dependencies for OpenBLAS 0.3.31, OpenCV 4.13.0, FFmpeg 8.0.1, Leptonica 1.87.0, Tesseract 5.5.2
 

src/main/java/org/bytedeco/javacv/FFmpegFrameFilter.java

@@ -206,6 +206,7 @@ public synchronized void releaseUnsafe() throws Exception {
             filt_frame = null;
         }
         frame = null;
+        Pointer.trimMemory();
     }
     @Override protected void finalize() throws Throwable {
         super.finalize();

src/main/java/org/bytedeco/javacv/FFmpegFrameGrabber.java

@@ -291,6 +291,7 @@ public synchronized void releaseUnsafe() throws Exception {
                 }
             }
         }
+        Pointer.trimMemory();
     }
     @Override protected void finalize() throws Throwable {
         super.finalize();

src/main/java/org/bytedeco/javacv/FFmpegFrameRecorder.java

@@ -328,6 +328,7 @@ public synchronized void releaseUnsafe() throws Exception {
                 }
             }
         }
+        Pointer.trimMemory();
     }
     @Override protected void finalize() throws Throwable {
         super.finalize();