Both are global settings. Modifying them at the frame level is left as a
follow up based on need.
Bug: b/272739498
Change-Id: If15256c052f73fe3df56be5e0095e76d9870cc0f
Break the main README into into multiple pages in the doc/ directory,
except for the tests, swig and webp_js docs which are in the corresponding
directories.
The webp mux doc is merged into the API doc and the tools doc.
Change-Id: Ia407617dd88094f4662841d37947cfef80799914