2015-09-18から1日間の記事一覧
function getWavGsmDuration($file_path) { $rtn = 0; if(file_exists($file_path)){ $fp = fopen($file_path,"r"); $size_in_bytes = filesize($file_path); fseek($fp, 20); $rawheader = fread($fp, 16); $header = unpack("vtype/vchannels/Vsamplerate/…