Order of Operations

1. Container
2. Codecs
3. Quality

Format

└── Container (ComboBox)
      └── SelectionChanged Event
            │
            └── Format Controls (Class)
                  │
                  └── SetControls (Method)
                        └── Load 
                              └── Media Type
                              └── Video Codec
                              └── Audio Codec
                              └── Subtitle Codec
                                └── Item Sources
                                └── Selected Item

Codec

└── Video/Subtitle/Audio Codec (ComboBox)
      └── SelectionChanged Event
            │
            └── Video/Subtitle/Audio Controls (Class)
                  │
                  └── SetControls (Method)
                        └── Load
                              └── Codec
                              └── Encode Speed
                              └── Quality
                              └── Pass
                              └── Optimize
                              └── Channel
                              └── Sample Rate
                              └── Bit Depth
                                └── Item Sources
                                └── Selected Items
                                └── Checked
                                └── Unchecked
                                └── Enabled
                                └── Disabled