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Video input Status quo - Mauro Carvalho Chehab


Mauro holds a masters degree in Electrical Engineering from Universidade de Brasília and is currently pursuing a PhD. He is a Certified Information Security Systems Professional and has more than 20 years experience working in the telecom industry. Until recently, he was responsible for the software architecture evolution at Brasil Telecom and teached Information Security for the UPIS MBA. He is currently working as a Kernel Specialist at Red Hat. He is maintainer for the multimedia subsystem which provides support for video stream and radio/TV broadcast on Linux, and maintains and develops drivers for webcams, AM/FM radio, analog TV and digital TV.


There are a large diversity of devices supported by Linux video input infrastructure. To cover the needs of those devices, two different modern kernel-userspace API's are defined: one focused on Digital TV standards like DVB and ATSC and another focused on video input streaming for video stream input and capture, Analog TV, Webcams and AM/FM broadcast receiving. Yet, the legacy V4L1 API is still the only option for some devices.

This talk will cover the current status of the development of video input infrastructure, presenting the strongest and weakest points of the infrastructure. The next presentations at the miniconf will address the weakest points.