Fix Video Player that support generate black image when finish playing video (reach the end of video)

.claude/settings.local.json

@@ -92,7 +92,10 @@
       "Bash(git submodule *)",
       "Bash(git rm *)",
       "Bash(rm -rf .git/modules/3rdparty/libyuv)",
-      "Bash(git add *)"
+      "Bash(git add *)",
+      "Read(//c/ProgramData/Jh7O7nUe7vS/Models/EngineModels/B-IN_ANS_VehicleDetection_v2.0_67345015/**)",
+      "Bash(xxd)",
+      "Bash(icacls \"C:\\\\ProgramData\\\\Jh7O7nUe7vS\\\\Models\\\\EngineModels\\\\B-IN_ANS_VehicleDetection_v2.0_67345015\\\\train_last.onnx\")"
     ]
   }
 }

modules/ANSCV/ANSVideoPlayer.cpp

@@ -253,7 +253,7 @@ namespace ANSCENTER {
 				_hwPlayer->play();  // starts read/video/audio threads
 				_hwEOF = false;
 				_hwFrameCount = 0;
-				_hwLastPts = 0;
+				_hwLastElapseMs = 0;
 				_isPlaying = true;
 
 				// Wait for first frame outside the mutex to let decode threads run
@@ -311,7 +311,7 @@ namespace ANSCENTER {
 					_hwCudaAccel = false;
 					_hwEOF = false;
 					_hwFrameCount = 0;
-					_hwLastPts = 0;
+					_hwLastElapseMs = 0;
 				}
 				else {
 					// --- cv::VideoCapture fallback ---
@@ -525,10 +525,14 @@ namespace ANSCENTER {
 						__FILE__, __LINE__);
 				}
 
-				// EOF detection: CFilePlayer auto-loops, but ANSVideoPlayer should stop.
+				// EOF detection: CFilePlayer auto-loops via av_seek_frame on AVERROR_EOF
-				// Detect when PTS wraps backwards (CFilePlayer seeked to start for looping).
+				// (file_player.cpp:434), so ANSVideoPlayer must detect the wrap itself.
-				if (_hwFrameCount > 10 && _hwLastPts > 0 && imgPts < _hwLastPts - 1000) {
+				// imgPts from getImage() is a monotonic call-counter, not a real PTS —
-					// Position wrapped back to start → video reached end
+				// use getElapse() (ms of real video position, updated from packet.pts
+				// in file_player.cpp:608). When the file loops, elapse drops back to ~0.
+				const int64_t elapseMs = _hwPlayer->getElapse();
+				if (_hwFrameCount > 10 && _hwLastElapseMs > 0 &&
+					elapseMs + 500 < _hwLastElapseMs) {
 					_hwEOF = true;
 					if (_resHeight <= 0 || _resWidth <= 0) { _resHeight = imgH; _resWidth = imgW; }
 					_previousImage = cv::Mat(_resHeight, _resWidth, CV_8UC3, cv::Scalar(0, 0, 0));
@@ -540,7 +544,7 @@ namespace ANSCENTER {
 					return _previousImage;
 				}
 
-				_hwLastPts = imgPts;  // track for EOF detection (PTS wrap)
+				_hwLastElapseMs = elapseMs;
 
 				cv::Mat result = frame;  // CFilePlayer returns owned Mat (already cloned internally)
 

modules/ANSCV/ANSVideoPlayer.h

@@ -17,6 +17,7 @@
 
 namespace ANSCENTER
 {
+	// This class only allow to run 1 (to the end of video) then it will generate blank dark image
 	class ANSVIDEOPLAYER_API ANSVIDEOPLAYER
 	{
 	protected:
@@ -49,7 +50,7 @@ namespace ANSCENTER
 		bool _hwCudaAccel = false;                 // true = NVIDIA CUDA zero-copy available
 		bool _hwEOF = false;                       // true when video reached end of file
 		int64_t _hwFrameCount = 0;                 // frame counter for EOF detection
-		int64_t _hwLastPts = 0;                    // last video PTS for EOF wrap detection
+		int64_t _hwLastElapseMs = 0;               // last CFilePlayer elapse (ms); EOF detected when it wraps backwards
 		ANSVIDEOPLAYER();
 		~ANSVIDEOPLAYER() noexcept;
 		[[nodiscard]] bool Init(std::string licenseKey, std::string url);

tests/ANSCV-UnitTest/ANSCV-UnitTest.cpp

@@ -1491,11 +1491,11 @@ int VideoPlayerClientTest() {
     while (true) {
         index++;
         std::cout << "Index=" << index << std::endl;
-        if ((index == 200) || (index == 800) || (index == 1200)) { StopVideoPlayer(&videoClient); }
+        /*if ((index == 200) || (index == 800) || (index == 1200)) { StopVideoPlayer(&videoClient); }
         if ((index == 400) || (index == 1000) || (index == 1500)) { StartVideoPlayer(&videoClient);  }
         if ((index == 1800) || (index == 2200) || (index == 2500)) { StopVideoPlayer(&videoClient); }
         if ((index == 2000) || (index == 2300) || (index == 2700)) { StartVideoPlayer(&videoClient); }
-        if (index > 20000) break;
+        if (index > 20000) break;*/
         auto start = std::chrono::system_clock::now();
         cv::Mat* image = nullptr;  // ✅ Use a pointer to hold the allocated image
         GetVideoPlayerCVImage(&videoClient, width, height, pts,&image);
@@ -1574,11 +1574,11 @@ int FilePlayerClientCVTest() {
     while (true) {
         index++;
         std::cout << "Index=" << index << std::endl;
-        if ((index == 200) || (index == 800) || (index == 1200)) { StopFilePlayer(&filePlayerClient); }
+        /*if ((index == 200) || (index == 800) || (index == 1200)) { StopFilePlayer(&filePlayerClient); }
         if ((index == 400) || (index == 1000) || (index == 1500)) { StartFilePlayer(&filePlayerClient); }
         if ((index == 1800) || (index == 2200) || (index == 2500)) { StopFilePlayer(&filePlayerClient); }
         if ((index == 2000) || (index == 2300) || (index == 2700)) { StartFilePlayer(&filePlayerClient); }
-        if (index > 20000) break;
+        if (index > 20000) break;*/
         auto start = std::chrono::system_clock::now();
         cv::Mat* image = nullptr;
         GetFilePlayerCVImage(&filePlayerClient, width, height, pts, &image);
@@ -1645,17 +1645,16 @@ int main()
     // so this works without the unit test having to link FFmpeg itself.
     //ANSCV_PrintFFmpegLicense_S();
     //FilePlayerClientDoubleDestroy();
-    //FilePlayerClientCVTest();
+    FilePlayerClientCVTest();
+   // VideoPlayerClientDoubleDestroy();
     //VideoPlayerClientTest();
-    //VideoPlayerClientDoubleDestroy();
-   // VideoPlayerClientTest();
    //OpenCVFunctionTest();
    //GenerateVideo();
    //VideoTestClient();
   // TestGetImage();
    //PureOpenCV();
   //  RSTPTestClient();
-   RSTPTestCVClient();
+   //RSTPTestCVClient();
    //TestCreateImageFromJpegStringFile();
    //TestCreateImageFromFile();
    //for (int i = 0; i < 100; i++) {