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Description of the Subsystem
32
SPRUHI7A – December 2012 – Revised June 2016
Copyright © 2012–2016, Texas Instruments Incorporated
High-Definition Video Processing Subsystem (HDVPSS)
frame rate on both NTSC and HD outputs
1.1.3.9
Video Capture Features
•
HDVPSS supports two independently configurable external video input capture ports.
•
Each video input capture port can be operated as one 16/24-bit input channel (with separate Y and
Cb/Cr inputs) or two clock independent 8-bit input channels (with interleaved Y/C data input).
Embedded sync and external sync modes are supported for all input configurations.
1.1.3.10 Input Data Features
NOTE:
Due to pinout restrictions, not all combinations are supported on all devices. Refer to the
device data manual for details.
•
8-bit input ports:
–
A single non-multiplexed CIF/480i/480p/720p/1080i Y/C data
–
Up to 2-stream multiplexed ED (480p) Y/C data
–
Up to 4-stream multiplexed SD (480i) Y/C data
–
Up to 16-stream multiplexed CIF Y/C data (TBD – 16)
•
16/24-bit input ports:
–
A single non-multiplexed CIF/480i/480p/720p/1080i/1080p Y/C data
–
A single 24-bit YCbCr component or raw RGB data
–
Up to 2-stream multiplexed HD (720p/1080i) Y/C data
–
Up to 4-stream multiplexed ED (480p) Y/C data
–
Up to 8-stream multiplexed SD (480i) Y/C data
–
Up to 8-stream multiplexed CIF Y/C data
•
The video capture port channel supports de-multiplexing of both pixel-to-pixel and line-to-line
multiplexed streams.
•
Up to 1920x1200@60Hz (160MHz) input data rate is supported for 16-bit mode input port.
•
Each video capture port supports one scaler capable of both up and down scaling of one non-
multiplexed input stream (one of two 8-bit channel inputs or 16-bit input channel input data).
•
Each video capture port supports one programmable color space conversion to convert 24-bit RGB
data to YCbCr data.
•
HDVPSS supports data storage in 444, 422, and 420 formats.
•
Each video capture port channel supports chroma down sampling (422 to 420) for any non-multiplexed
input data. The chroma down-sampling for multiplexed streams is done as memory-to-memory
operations outside of HDVPSS on an individual frame data.
•
Deinterlacing is not supported.
•
Ancillary data capture is supported for VANC/VBI data (ancillary data within the interval between SAV-
EAV sequences during vertical blanking period) on all input channels. HANC data capture is not
supported. Decoding of the Ancillary data will be handled by the software.
•
Graphics overlay over incoming bitstream is NOT supported.
•
Noise Reduction on the incoming video is supported as a separate memory-to-memory operation
within the HDVPSS.
•
One of the 8-bit channels in each video port may be used as a video write back path for transcoding
applications. This channel may also use the color space conversion and/or the scaler. It is up to the
application to avoid resource contention.
1.1.3.11 Other Features
•
The HDVPSS supports two additional video input source in 420 or 422 tiled format (same as input for
main and auxiliary video paths). This path can be used for both video transcode operations (utilizing a