Php gets flv video time

Php gets flv time! Source code! You can use it! Super simple .? PhpfunctionBigEndian2Int ($ byte_word, $ signed = false) {$ int_value = 0; $ byte_wordlen = strlen ($ byte_word); for ($ I = 0; $ I $ B

Php gets flv time! Source code! You can use it! Super simple.

 

  

   
  
 
  
Function BigEndian2Int ($ byte_word, $ signed = false ){
  
 
  
$ Int_value = 0;
  
 
  
$ Byte_wordlen = strlen ($ byte_word );
  
 
  
For ($ I = 0; $ I <$ byte_wordlen; $ I ++)
  
 
  
{
  
 
  
$ Int_value + = ord ($ byte_word {$ I}) x pow (256, ($ byte_wordlen-1-$ I ));
  
 
  
}
  
 
  
If ($ signed)
  
 
  
{
  
 
  
$ Sign_mask_bit = 0x80 <(8 * ($ byte_wordlen-1 ));
  
 
  
If ($ int_value & $ sign_mask_bit)
  
 
  
{
  
 
  
$ Int_value = 0-($ int_value & ($ sign_mask_bit-1 ));
  
 
  
}
  
 
  
}
  
 
  
Return $ int_value;
  
 
  
}
  
 
  
Function getTime ($ name ){
  
 
  
If (! File_exists ($ name )){
  
 
  
Return;
  
 
  
}
  
 
  
$ Flv_data_length = filesize ($ name );
  
 
  
$ Fp = @ fopen ($ name, 'RB ');
  
 
  
$ Flv_header = fread ($ fp, 5 );
  
 
  
Fseek ($ fp, 5, SEEK_SET );
  
 
  
$ Frame_size_data_length = BigEndian2Int (fread ($ fp, 4 ));
  
 
  
$ Flv_header_frame_length = 9;
  
 
  
If ($ frame_size_data_length> $ flv_header_frame_length ){
  
 
  
Fseek ($ fp, $ frame_size_data_length-$ flv_header_frame_length, SEEK_CUR );
  
 
  
}
  
 
  
$ Duration = 0;
  
 
  
While (ftell ($ fp) + 1) <$ flv_data_length ){
  
 
  
$ This_tag_header = fread ($ fp, 16 );
  
 
  
$ Data_length = BigEndian2Int (substr ($ this_tag_header, 5, 3 ));
  
 
  
$ Timestamp = BigEndian2Int (substr ($ this_tag_header, 8, 3 ));
  
 
  
$ Next_offset = ftell ($ fp)-1 + $ data_length;
  
 
  
If ($ timestamp> $ duration ){
  
 
  
$ Duration = $ timestamp;
  
 
  
}
  
 
  
Fseek ($ fp, $ next_offset, SEEK_SET );
  
 
  
}
  
 
  
Fclose ($ fp );
  
 
  
Return $ duration;
  
 
  
}
  
 
  
Function fn ($ time ){
  
 
  
$ Num = $ time;
  
 
  
$ Sec = intval ($ num/1000 );
  
 
  
$ H = intval ($ sec/3600 );
  
 
  
$ M = intval ($ sec % 3600)/60 );
  
 
  
$ S = intval ($ sec % 60 ));
  
 
  
$ Tm = $ h. ':'. $ m. ':'. $ s;
  
 
  
Return $ tm;
  
 
  
}
  
 
  
Echo getTime ("27729.flv"); // display the numeric time, such as 236722
  
 
  
Echo fn (236722); // Display time format 0:03:56
  
 
  
?>