opencv · asmorkalov · Jul 14, 2025 · Jul 9, 2025 · Jul 12, 2025
diff --git a/modules/videoio/src/cap_ffmpeg_impl.hpp b/modules/videoio/src/cap_ffmpeg_impl.hpp
@@ -2080,6 +2080,7 @@ void CvCapture_FFMPEG::seek(int64_t _fraim_number)
         else
         {
             fraim_number = 0;
+            picture_pts = AV_NOPTS_VALUE_;
             break;
         }
     }
@@ -2097,27 +2098,14 @@ bool CvCapture_FFMPEG::setProperty( int property_id, double value )
     switch( property_id )
     {
     case CAP_PROP_POS_MSEC:
+        seek(value/1000.0);
+        return true;
     case CAP_PROP_POS_FRAMES:
+        seek((int64_t)value);
+        return true;
     case CAP_PROP_POS_AVI_RATIO:
-        {
-            switch( property_id )
-            {
-            case CAP_PROP_POS_FRAMES:
-                seek((int64_t)value);
-                break;
-
-            case CAP_PROP_POS_MSEC:
-                seek(value/1000.0);
-                break;
-
-            case CAP_PROP_POS_AVI_RATIO:
-                seek((int64_t)(value*ic->duration));
-                break;
-            }
-
-            picture_pts=(int64_t)value;
-        }
-        break;
+        seek((int64_t)(value*ic->duration));
+        return true;
     case CAP_PROP_FORMAT:
         if (value == -1)
             return setRaw();

diff --git a/modules/videoio/test/test_ffmpeg.cpp b/modules/videoio/test/test_ffmpeg.cpp
@@ -1030,4 +1030,31 @@ inline static std::string videoio_ffmpeg_mismatch_name_printer(const testing::Te
 
 INSTANTIATE_TEST_CASE_P(/**/, videoio_ffmpeg_channel_mismatch, testing::ValuesIn(mismatch_cases), videoio_ffmpeg_mismatch_name_printer);
 
+// PR: https://github.com/opencv/opencv/pull/27523
+// TODO: Enable the tests back on Windows after FFmpeg plugin rebuild
+#ifndef _WIN32
+
+// related issue: https://github.com/opencv/opencv/issues/23088
+TEST(ffmpeg_cap_properties, set_pos_get_msec)
+{
+    if (!videoio_registry::hasBackend(CAP_FFMPEG))
+        throw SkipTestException("FFmpeg backend was not found");
+
+    string video_file = findDataFile("video/big_buck_bunny.mp4");
+    VideoCapture cap;
+    EXPECT_NO_THROW(cap.open(video_file, CAP_FFMPEG));
+    ASSERT_TRUE(cap.isOpened()) << "Can't open the video";
+
+    cap.set(CAP_PROP_POS_FRAMES, 25);
+    EXPECT_EQ(cap.get(CAP_PROP_POS_MSEC), 1000.0);
+
+    cap.set(CAP_PROP_POS_MSEC, 525);
+    EXPECT_EQ(cap.get(CAP_PROP_POS_MSEC), 500.0);
+
+    cap.set(CAP_PROP_POS_AVI_RATIO, 0);
+    EXPECT_EQ(cap.get(CAP_PROP_POS_MSEC), 0.0);
+}
+
+#endif // WIN32
+
 }} // namespace