1. mediacapabilities api

2. mediacapabilities api: decodinginfo

3. mediacapabilities api: decodinginfo: `configuration` parameter

4. mediacapabilities api: decodinginfo: `configuration` parameter: `keysystemconfiguration` property

5. mediacapabilities api: decodinginfo: `configuration` parameter: `type` property

6. mediacapabilities api: decodinginfo: `configuration` parameter: `type` property: `configuration.type.webrtc` option

7. mediacapabilities api: encodinginfo

8. mediacapabilities api: encodinginfo: `configuration` parameter

9. mediacapabilities api: encodinginfo: `configuration` parameter: `type` property

10. mediacapabilities api: encodinginfo: `configuration` parameter: `type` property: `configuration.type.transmission` option

11. mediacapabilities api: encodinginfo: `configuration` parameter: `type` property: `configuration.type.webrtc` option

12. mediastreamtrack api: getcapabilities

13. navigator api: mediacapabilities

14. workernavigator api: mediacapabilities