This version (24 Jul 2020 11:06) was approved by Sunny Feng.
Table of Contents
Linux Video Driver
Introduction
This section describes the steps required to build and use video driver to capture or display video images on Linux using an ADSP-SC5xx board, a Video Decoder EI3 Extender Board and a Video Encoder EI3 Extender Board.
The Linux Kernel Media Subsystems provides support for devices like webcams, streaming capture and output, analog TV, digital TV, AM/FM radio, Sofware Digital Radio (SDR) and remote controllers.
The Linux Media Infrastructure API converges the kernel to userspace APIs used on media drivers. It has 4 parts:
- Part I: The V4L2 API
- Part II: The Linux DVB API
- Part III: The Remote Controller API
- Part IV: The Media Controller API
For more information about the Linux Kernel Media Subsystems, please refer to http://linuxtv.org/.
Hardware Required
- An ADSP-SC5XX EZ-Board
- ADSP-SC589 Ezkit v1.1 and above, or,
- ADSP-SC573 Ezkit v1.2 (BOM 1.8) and above
- A Video Decoder EI3 Extender Board, or
- A Video Encoder EI3 Extender Board
- HDMI Cable and 3RCA Cable
EPPI on ADSP-SC5XX EZ-Board
The Enhanced Parallel Peripheral Interface (EPPI) is a half-duplex, bidirectional port with a dedicated clock pin and three frame sync (FS) pins directly output from the processor. It can support direct connections to active TFT LCDs, parallel A/D and D/A converters, video encoders and decoders, image sensor modules and other general-purpose peripherals. We can find EPPI port from P1A connector on the back of ADSP-SC5XX EZ-Board.
Refer below pages for the detailed useage of ADI video encoders and decoders ADV7842, ADV7511, ADV7343 on ADSP-SC5XX EZ-Board.
Back to Kernel Features and Device Drivers for ADSP-SC5xx Yocto Linux
resources/tools-software/linuxdsp/docs/linux-kernel-and-drivers/video/linux_video_driver.txt · Last modified: 17 Jul 2020 07:45 by Sunny Feng