Handling Feedback; Possible Subtypes - ReQuest Multimedia VideoReQuest Protocol Manual

H a n d l i n g F e e d b a c k
Before the VideoReQuest will send feedback data, you must send a command to the
VideoReQuest that initializes communication. See Initializing the Connection on Page 6 for
more information.
All feedback is formatted in the same manner as commands sent TO the VideoReQuest. In
general, the format is as follows:
Marker Command
Type
FCh A0h 0Ah
In this case, the Subtype determines what data you are receiving (i.e. Movie Title, Genre,
etc) and the Data portion contains the actual data (i.e. the actual Movie Title, the actual
Genre name, etc). The length of the Data portion is determined by the 2 byte Data Size in
the Header.
For help understanding what each Subtype is, see Appendix A.

Possible Subtypes:

Hex Integer Description
80 128 Browse window title ("Welcome", "Total: 46", etc)
81 129 Browse List Title (Home, Genres, etc)*
82 130 Browse Column 1 Header (Total)
83 131 Browse Column 2 Header (Genre, Rating, etc)
84 132 Browse Column 1 Data
85 133 Browse Column 2 Data
86 134 Browse List Size, Page UP/DOWN Flags and Cursor Position*
8A 138 Browse Long Description
8B 139 Engine Mode
8C 140 View Mode, Changer Number, Slot Number*
90 144 Browse Text Line 1*
91 145 Browse Text Line 2*
... ... ...
9F 159 Browse Text Line 16*
A0 160 Player Long Description (not used)
A1 161 Player List Size, Page UP/DOWN Flags and Cursor Position (which chapter is
selected)*
A2 162 Player Movie Title
A3 163 Player State
A5 165 Player Window Title ("More Info", "Chapters")
A6 166 Player Detail Headers*
A7 167 Player Detail Text*
A8 168 Player Mode (on Chapters or on Details)
A9 169 Player List Size, Page UP/DOWN Flags and Now Playing Cursor Position
(which chapter is playing)*
B0 176 Player Chapter Line 1 Text
B1 177 Player Chapter Line 2 Text
... ... ...
BF 191 Player Chapter Line 16 Text
* - Format of this data is explained on the next page under Special Data Formats
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HEADER
Command Flags
Subtype
1 Byte 00h 00h
0: On Browse Page
1: On Player Page
2: DVD Pass-thru (Playing a movie)
0: Stopped
1: Playing
2: Paused
0: Details
1: Chapters
-
VideoReQuest Protocol Guide v1.1.2 - 5/18/04
Data Size Chk
Sum
Byte 1 Byte 2 00h
www.request.com
9 -
DATA
Data Chk Sum
1+ Bytes 00h
Data Size
TBD
TBD
TBD
TBD
TBD
TBD
8
TBD
2
5
TBD
TBD
...
TBD
TBD
8
TBD
2
TBD
TBD
TBD
2
8
TBD
TBD
...
TBD