Description of the Subsystem
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SPRUHI7A – December 2012 – Revised June 2016
Copyright © 2012–2016, Texas Instruments Incorporated
High-Definition Video Processing Subsystem (HDVPSS)
•
Secondary Path Output (422): SEC0 for CSC_VIP0 and SEC1 for CSC_VIP1
•
VIP_PARSER PortA Output (RGB)
•
Compositer Output (RGB) from COMP.
The default for this mux is disabled, so there is no CSC_VIP input.
1.1.5.7
SC_VIP Mux
The scaler modules (SC_VIP0 and SC_VIP1) within the VIP subsystem receive data from one of three
sources:
•
Color Space Converter Output (from CSC_VIP)
•
VIP_PARSER PortA Output
•
VIP_PARSER PortB Output
•
Secondary Path Output: SEC0 for SC_VIP0 and SEC1 for SC_VIP1
The default for this mux is disabled, so there is no SC_VIP input.
1.1.5.8
VIP RGB Mux
The RGB output of the VIP subsystem can come from one of two sources:
•
Compositer Output (from COMP)
•
Color Space Converter Output (from CSC_VIP)
1.1.5.9
Video Compositor PIP Input
The Video Compositor PIP input path can come from 1 of 3 sources: The Auxiliary Input Pipe, or from
either of the Bypass-422 pipes (non-tiled format). These sources will usually be either the Primary
Composited Writeback Path or the memory stored version of the Auxiliary Input Path. However, the only
requirement on these two VPDMA input paths is that they have been stored in 422 “private data” format,
which is an untiled raster format.
The default for this path is disabled, meaning no PIP input.
1.1.5.10 PIP Display Input
The HD Composite VENC path can come from 1 of 3 sources: The Auxiliary Input Pipe, or from either of
the Bypass-422 pipes (non-tiled format). These sources will usually be either the Primary Composited
Writeback Path or the memory stored version of the Auxiliary Input Path. However, the only requirement
on these two VPDMA input paths is that they have been stored in 422 “private data” format, which is an
untiled raster format.
The default for this path is disabled, meaning no input.
1.1.5.11 Standard Definition Video Encoder Input
The standard definition vdeo encoder (SD VENC) input path can come from 1 of 4 sources: The auxiliary
input pipe, the secondary-2 input pipe or one of the two bypass-422 input pipes. These sources will
usually be either the primary composited writeback path or the memory stored version of the Auxiliary
Input Path. However, the only requirement on these two VPDMA input paths is that they have been stored
in 422 “private data” format, which is an untiled raster format.
The default for this path is disabled, meaning no SD VENC input.
1.1.5.12 Primary Composited Writeback Scaler Input
The primary composited writeback scaler Input is used to scale the primary input path (normally HD) and
send to memory so that this data can be fed back into the HDVPSS for display on either the high-definition
VENC or standard-definition VENC. The input to this scaler can come from 1 of 6 sources: the output of
the video compositor, the composited HDMI output, one of the two bypass-422 paths, or the secondary-1
input.
