Updated kodi settings on Lenovo

Kodi/Lenovo/addons/plugin.video.pseudotv.live/resources/lib/parsers/FLVParser.py

@@ -0,0 +1,144 @@
+#   Copyright (C) 2024 Jason Anderson, Lunatixz
+#
+#
+# This file is part of PseudoTV Live.
+#
+# PseudoTV Live is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# PseudoTV Live is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with PseudoTV Live.  If not, see <http://www.gnu.org/licenses/>.
+
+from globals import *
+
+class FLVTagHeader:
+    def __init__(self):
+        self.tagtype = 0
+        self.datasize = 0
+        self.timestamp = 0
+        self.timestampext = 0
+
+
+    def readHeader(self, thefile):
+        try:
+            data = struct.unpack('B', thefile.readBytes(1))[0]
+            self.tagtype = (data & 0x1F)
+            self.datasize = struct.unpack('>H', thefile.readBytes(2))[0]
+            data = struct.unpack('>B', thefile.readBytes(1))[0]
+            self.datasize = (self.datasize << 8) | data
+            self.timestamp = struct.unpack('>H', thefile.readBytes(2))[0]
+            data = struct.unpack('>B', thefile.readBytes(1))[0]
+            self.timestamp = (self.timestamp << 8) | data
+            self.timestampext = struct.unpack('>B', thefile.readBytes(1))[0]
+        except:
+            self.tagtype = 0
+            self.datasize = 0
+            self.timestamp = 0
+            self.timestampext = 0
+
+
+
+class FLVParser:
+    def __init__(self):
+        self.monitor = MONITOR()    
+    
+    
+    def determineLength(self, filename: str) -> int and float:
+        log("FLVParser: determineLength %s"%filename)
+
+        try: self.File = FileAccess.open(filename, "rb", None)
+        except:
+            log("FLVParser: Unable to open the file")
+            return 0
+
+        if self.verifyFLV() == False:
+            log("FLVParser: Not a valid FLV")
+            self.File.close()
+            return 0
+
+        tagheader = self.findLastVideoTag()
+
+        if tagheader is None:
+            log("FLVParser: Unable to find a video tag")
+            self.File.close()
+            return 0
+
+        dur = int(self.getDurFromTag(tagheader))
+        self.File.close()
+        log("FLVParser: Duration is %s"%(dur))
+        return dur
+
+
+    def verifyFLV(self):
+        data = self.File.read(3)
+
+        if data != 'FLV':
+            return False
+
+        return True
+
+
+    def findLastVideoTag(self):
+        try:
+            self.File.seek(0, 2)
+            curloc = self.File.tell()
+        except:
+            log("FLVParser: Exception seeking in findLastVideoTag")
+            return None
+
+        # Go through a limited amount of the file before quiting
+        maximum = curloc - (2 * 1024 * 1024)
+
+        if maximum < 0:
+            maximum = 8
+
+        while not self.monitor.abortRequested() and curloc > maximum:
+            try:
+                self.File.seek(-4, 1)
+                data = int(struct.unpack('>I', self.File.readBytes(4))[0])
+
+                if data < 1:
+                    log('FLVParser: Invalid packet data')
+                    return None
+
+                if curloc - data <= 0:
+                    log('FLVParser: No video packet found')
+                    return None
+
+                self.File.seek(-4 - data, 1)
+                curloc = curloc - data
+                tag = FLVTagHeader()
+                tag.readHeader(self.File)
+
+                if tag.datasize <= 0:
+                    log('FLVParser: Invalid packet header')
+                    return None
+
+                if curloc - 8 <= 0:
+                    log('FLVParser: No video packet found')
+                    return None
+
+                self.File.seek(-8, 1)
+                log("FLVParser: detected tag type %s"%(tag.tagtype))
+                curloc = self.File.tell()
+
+                if tag.tagtype == 9:
+                    return tag
+            except:
+                log('FLVParser: Exception in findLastVideoTag')
+                return None
+
+        return None
+
+
+    def getDurFromTag(self, tag):
+        tottime = tag.timestamp | (tag.timestampext << 24)
+        tottime = int(tottime / 1000)
+        return tottime