Initial commit

2017-02-13 02:53:48 +01:00
commit b347a8e22b
25 changed files with 1449 additions and 0 deletions
--- a/src/Helper/Pacmd.php
+++ b/src/Helper/Pacmd.php
@ -0,0 +1,133 @@
+<?php
+
+namespace NoccyLabs\PulseAudio\Helper;
+
+class Pacmd
+{
+    public static function call($command, array $args=[])
+    {
+        // assemble command lin
+        $cmdl = array_merge([ $command ], $args);
+        $cmdl = join(" ", array_map("escapeshellarg", $cmdl));
+        
+        // call pacmd
+        exec("pacmd {$cmdl}", $output, $retval);
+        
+        // handle errors
+        if ($retval != 0) {
+            throw new \RuntimeException("Failed to call pacmd. exitcode={$retval}");
+        }
+
+        // return output
+        return $output;
+    }
+
+    public static function query($command, array $args=[])
+    {
+        $output = Pacmd::call($command, $args);
+
+        $status = array_shift($output);
+        // printf("[pacmd] %s\n", $status);
+
+        $parser = new ListParser();
+        $output = $parser->parse($output);
+
+        return $output;
+    }        
+}
+
+class ListParser
+{
+    public function parse(array $lines)
+    {
+        $lines = $this->prepare($lines);
+        return $this->parseRecursive($lines, 0);
+    }
+
+    private function prepare(array $lines)
+    {
+        $data = [];
+        foreach ($lines as $line) {
+            if ($line=="") continue;
+            if ($line[0] == " ") {
+                $data[] = [ 0, trim($line) ];
+            } else {
+                $depth = 0;
+                while ($line[0]=="\t") {
+                    $depth++; 
+                    $line = substr($line,1);
+                }
+                $data[] = [ $depth, $line ];
+            }
+        }
+        return $data;
+    }
+
+    private function parseRecursive(array $lines, $current=0)
+    {
+        $ret = [];
+        while (count($lines)>0) {
+            $line = array_shift($lines);
+            $children = [];
+            while ((count($lines)>0) && ($lines[0][0]>$current)) {
+                $children[] = array_shift($lines);
+            }
+            if (count($children)>0) {
+                $key = trim(str_replace("index: ","", $line[1]),":* ");
+                $ret[$key] = $this->parseRecursive($children, $line[0]+1);
+            } else {
+                if (strpos($line[1]," = ")!==false) {
+                    list ($k,$v) = array_map("trim", explode("=",$line[1],2));
+                    $ret[$k] = $this->parseVal($v);
+                } elseif (strpos($line[1],": ")!==false) {
+                    list ($k,$v) = array_map("trim", explode(":",$line[1],2));
+                    $ret[$k] = $this->parseVal($v);
+                }
+            }
+                
+
+
+        }
+        return $ret;
+        
+    }
+
+    private function parseVal($value)
+    {
+        if ($value=="") {
+            return null;
+        } elseif ($value=="yes") {
+            return true;
+        } elseif ($value=="no") {
+            return false;
+        } elseif ($value[0]=="<") {
+            $kvs = trim($value,"<>");
+            if (strpos($kvs,"=")===false) {
+                return $kvs;
+            }
+            $kvs = explode(" ",$kvs);
+            $val = [];
+            foreach ($kvs as $kv) {
+                list ($k,$v) = explode("=",$kv,2);
+                $val[$k] = $v;
+            }
+            return $val;
+        } elseif ($value[0]=="\"") {
+            return trim($value,"\"");
+        } else {
+            return $value;
+        }
+    }
+
+    private function parseKeyVal($kvs)
+    {
+        $kvs = explode(" ",$kvs,2 );
+        $val = [];
+        foreach ($kvs as $kv) {
+            list ($k,$v) = explode("=",$kv,2);
+            $val[$k] = $this->parseKeyVal($v);
+        }
+        return $val;
+    }
+
+}