✨ Set stream codecs properly

src/Stream.php

@@ -43,7 +43,45 @@ class Stream
         return $this;
     }
 
-    // @todo add hlper methods for setting codec
+    public function video(string $codec, callable $callback = null): static
+    {
+        $this->setCodec(new Format\DefaultVideo($codec));
+
+        if ($callback) {
+            return $this->editCodec($callback);
+        }
+
+        return $this;
+    }
+
+    public function audio(string $codec, callable $callback = null): static
+    {
+        $this->setCodec(new Format\DefaultAudio($codec));
+
+        if ($callback) {
+            return $this->editCodec($callback);
+        }
+
+        return $this;
+    }
+
+
+    public function subtitle(string $codec, callable $callback = null): static
+    {
+        $this->setCodec(new Format\DefaultSubtitle($codec));
+
+        if ($callback) {
+            return $this->editCodec($callback);
+        }
+
+        return $this;
+    }
+
+
+    public function copy(): static
+    {
+        return $this->setCodec(new Format\Copy());
+    }
 
     public function getCodec(): FormatInterface
     {
@@ -61,21 +99,15 @@ class Stream
     {
         if ($this->codec instanceof VideoInterface) {
             $this->parseVideo();
-        }
-
-        if ($this->codec instanceof AudioInterface) {
+        } elseif ($this->codec instanceof AudioInterface) {
             $this->parseAudio();
-        }
-
-        if ($this->codec instanceof Format\SubtitleInterface) {
+        } elseif ($this->codec instanceof Format\SubtitleInterface) {
             $this->parseSubtitle();
-        }
-
-        if ($this->codec instanceof Format\Copy) {
+        } elseif ($this->codec instanceof Format\Copy) {
             $this->addFlag('c', 'copy');
         }
 
-        $this->parseExtras($this->codec->getExtraParameters());
+        $this->parseExtras($this->codec->getExtraParams());
 
         return $this;
     }