exception thrown when errors occur in external libraries

A trivial class that holds (aligned) frame data. This makes it easy to implement reference counting through std::shared_ptr.

A wrapper around AVFrame to manage memory allocation and reference counting. Note: This reference counting mechanism is unrelated to the mechanism add

A wrapper around AVPacket to manage memory allocation. There is no copying or reference counting in this case.

button data

A label that elides its text when not enough geometry is available to show all of the text. Currently only capable of one-line.

A scroll area that tries to stay invisible if possible. The goal is to keep SSR functional even when the screen resolution is too small to show the fu