evslicer: reset slice time stamps

opencv-motion-detect/evslicer.cpp

@@ -481,12 +481,13 @@ private:
         //av_dict_set(&pOptsRemux, "movflags", "frag_keyframe+empty_moov+default_base_moof", 0);
         av_dict_set(&pOptsRemux, "c:v", "libx264", 0);
         //av_dict_set(&pOptsRemux, "brand", "mp42", 0);
-        //av_dict_set(&pOptsRemux, "movflags", "faststart", 0);
+        av_dict_set(&pOptsRemux, "movflags", "faststart+frag_keyframe", 0);
         av_dict_set(&pOptsRemux, "strftime", "1", 0);
         av_dict_set(&pOptsRemux, "segment_format", "mp4", 0);
         av_dict_set(&pOptsRemux, "f", "segment", 0);
         av_dict_set(&pOptsRemux, "segment_time", to_string(seconds).data(), 0);
         av_dict_set(&pOptsRemux, "segment_wrap", to_string(numSlices).data(), 0);
+        av_dict_set(&pOptsRemux, "reset_timestamps", "1", 0);
 
         return ret;
     }