Features; Supported Features; Constraints/Limitations; Known Issues - Texas Instruments OMAP35 Series User Manual

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9.2. Features

9.2.1. Supported features

The ISP Capture Driver provides the following features:

9.2.2. Constraints/Limitations

Following are the constraints for ISP Capture Driver:

9.2.3. Known Issues

Version 02.01.01.08
Supports one software channel of capture and a corresponding device node
(/dev/video0) is created.
Supports single I/O instance and multiple control instances.
Supports buffer access mechanism through memory mapping and user
pointers.
Supports dynamic switching among input interfaces with some necessary
restrictions wherever applicable.
Supports NTSC and PAL standard on Composite and S-Video interfaces.
Supports 8-bit BT.656 capture in UYVY and YUYV interleaved formats.
Supports standard V4L2 IOCTLs to get/set various control parameters like
brightness, contrast, saturation, hue and auto gain control.
TVP5146 (TVP514x) decoder driver module can be used statically or
dynamically (insmod and rmmod supported).
The camera ISP driver supports only static module build.
Dynamic switching of resolution and dynamic switching of interfaces is not
supported when streaming is on.
Driver buffer addresses and pitch must be aligned to 32 byte boundary.
Cropping and scaling operations and their corresponding V4L2 IOCTLs are
not supported.
In loopback sample application, the video displayed on the LCD has
interlacing artifacts when viewing fast moving objects. This is because
the input video is in interlaced mode @ 30 FPS while the LCD works in
progressive mode @ 60 FPS. The frame rate conversion and de-interlacing
is not done in the current sample application.
Field id is not coming proper on mass market daughter card. This results
in flickering of image.
Platform Support Products
Capture Driver
Features
153

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