162306a36Sopenharmony_ci.. SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci 362306a36Sopenharmony_ci============ 462306a36Sopenharmony_ciIntroduction 562306a36Sopenharmony_ci============ 662306a36Sopenharmony_ci 762306a36Sopenharmony_ciThe media subsystem consists on Linux support for several different types 862306a36Sopenharmony_ciof devices: 962306a36Sopenharmony_ci 1062306a36Sopenharmony_ci- Audio and video grabbers; 1162306a36Sopenharmony_ci- PC and Laptop Cameras; 1262306a36Sopenharmony_ci- Complex cameras found on Embedded hardware; 1362306a36Sopenharmony_ci- Analog and digital TV; 1462306a36Sopenharmony_ci- HDMI Customer Electronics Control (CEC); 1562306a36Sopenharmony_ci- Multi-touch input devices; 1662306a36Sopenharmony_ci- Remote Controllers; 1762306a36Sopenharmony_ci- Media encoders and decoders. 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ciDue to the diversity of devices, the subsystem provides several different 2062306a36Sopenharmony_ciAPIs: 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci- Remote Controller API; 2362306a36Sopenharmony_ci- HDMI CEC API; 2462306a36Sopenharmony_ci- Video4Linux API; 2562306a36Sopenharmony_ci- Media controller API; 2662306a36Sopenharmony_ci- Video4Linux Request API (experimental); 2762306a36Sopenharmony_ci- Digital TV API (also known as DVB API). 28