Add support for the new quality options

DependencyInjection/Configuration.php

@@ -120,6 +120,9 @@ public function getConfigTreeBuilder()
                         ->fixXmlConfig('filter', 'filters')
                         ->children()
                             ->scalarNode('quality')->defaultValue(100)->end()
+                            ->scalarNode('jpeg_quality')->defaultNull()->end()
+                            ->scalarNode('png_compression_level')->defaultNull()->end()
+                            ->scalarNode('png_compression_filter')->defaultNull()->end()
                             ->scalarNode('format')->defaultNull()->end()
                             ->booleanNode('animated')->defaultFalse()->end()
                             ->scalarNode('cache')->defaultNull()->end()

Imagine/Filter/FilterManager.php

@@ -120,6 +120,16 @@ public function apply(BinaryInterface $binary, array $config)
             'quality' => $config['quality']
         );
 
+        if (isset($config['jpeg_quality'])) {
+            $options['jpeg_quality'] = $config['jpeg_quality'];
+        }
+        if (isset($config['png_compression_level'])) {
+            $options['png_compression_level'] = $config['png_compression_level'];
+        }
+        if (isset($config['png_compression_filter'])) {
+            $options['png_compression_filter'] = $config['png_compression_filter'];
+        }
+
         if ($binary->getFormat() === 'gif' && $config['animated']) {
             $options['animated'] = $config['animated'];
         }

Resources/doc/configuration.rst

@@ -31,6 +31,9 @@ The default configuration for the bundle looks like this:
             # Prototype
             name:
                 quality:              100
+                jpeg_quality:         ~
+                png_compression_level:  ~
+                png_compression_filter: ~
                 animated:             false
                 format:               ~
                 cache:                ~
@@ -67,7 +70,10 @@ Each filter set that you specify has the following options:
   for more information) and options that should be passed to the specific filter type.
 * ``post_processors`` - sets post-processors to be applied on filtered image
   (see Post-Processors section in the :doc:`filters chapter <filters>` for details).
-* ``quality`` - override the default quality of 100 for the generated images.
+* ``quality`` - override the default quality of 100 for the generated images. **(deprecated)**
+* ``jpeg_quality`` - override the quality for jpeg images (this overrides the ``quality`` option above)
+* ``png_compression_level`` - set the compression level for png images (0-9) (this overrides the ``quality`` option above)
+* ``png_compression_filter`` - set the compression filter for png images (see the ``filters`` parameter for ``imagepng`` function in `PHP manual`_ for more details)
 * ``cache`` - override the default cache setting.
 * ``data_loader`` - override the default data loader.
 * ``route`` - optional list of route requirements, defaults and options using in
@@ -77,3 +83,5 @@ Each filter set that you specify has the following options:
   is ignored).
 * ``animated`` - support for resizing animated gif (currently not supported by
   Imagine (PR pending))
+
+.. _`PHP Manual`: http://php.net/imagepng

Tests/DependencyInjection/ConfigurationTest.php

@@ -376,6 +376,39 @@ public function testShouldNotOverwriteDefaultResolverIfDefined()
         $this->assertArrayHasKey('bar', $config['resolvers']['default']);
     }
 
+    public function testNewFilterQualitySettings()
+    {
+        $config = $this->processConfiguration(
+            new Configuration(
+                array(
+                    new BarResolverFactory,
+                    new WebPathResolverFactory
+                ),
+                array(
+                    new FileSystemLoaderFactory
+                )
+            ),
+            array(array(
+                'filter_sets' => array(
+                    'test' => array(
+                        'jpeg_quality' => 70,
+                        'png_compression_level' => 9,
+                        'png_compression_filter' => PNG_ALL_FILTERS,
+                    ),
+                )
+            ))
+        );
+
+        $this->assertArrayHasKey('filter_sets', $config);
+        $this->assertArrayHasKey('test', $config['filter_sets']);
+        $this->assertArrayHasKey('jpeg_quality', $config['filter_sets']['test']);
+        $this->assertEquals(70, $config['filter_sets']['test']['jpeg_quality']);
+        $this->assertArrayHasKey('png_compression_level', $config['filter_sets']['test']);
+        $this->assertEquals(9, $config['filter_sets']['test']['png_compression_level']);
+        $this->assertArrayHasKey('png_compression_filter', $config['filter_sets']['test']);
+        $this->assertEquals(PNG_ALL_FILTERS, $config['filter_sets']['test']['png_compression_filter']);
+    }
+
     /**
      * @param ConfigurationInterface $configuration
      * @param array $configs