| PFSPD File Format |
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| Length |
Type |
Description |
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| Global
data file header record (mandatory part) |
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| 7 |
i |
Number of images |
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| 5 |
i |
Number of components per image |
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| 5 |
i |
Number of file descriptor records
(incl. auxiliary header records) |
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| 5 |
i |
Number of auxiliray data records |
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| 25 |
a |
Application type = "VIDEO " |
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| 7 |
i |
Bytes per record (minimum 64) |
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| 1 |
a |
Endian code ('A' = big endian) |
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| 5 |
i |
Number of auxiliary header records |
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| 4 |
- |
RESERVED for future extension |
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| Global
data file header record (non-mandatory part) |
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| 12 |
n+ |
Image frequency [Hz] |
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| 12 |
n+ |
Line Frequency [kHz] |
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| 12 |
n+ |
Pixel sampling frequency [MHz] |
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| 6 |
i |
Active lines |
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| 6 |
i |
Active pixels |
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| 2 |
i |
Interlace factor |
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| 5 |
i |
Horizontal proportional picture size |
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| 5 |
i |
Vertical proportional picture size |
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| 4 |
- |
RESERVED for future extension |
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| File
descriptor records (optional) |
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| 64 |
* |
Descriptive text |
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| Auxiliary
header records (optional, contained in File descriptor
records) |
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| These
records form a contiguous block of data, containing a list of variable length
sub-headers. |
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| Auxiliary
sub-header |
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| 8 |
i |
Length of this subheader (including this field) |
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| 16 |
a |
Auxiliary component code |
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| 8 |
i |
Maximum bytes per image (maxlen) |
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| 16 |
- |
RESERVED for future extension (spaces) |
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| len-48 |
a |
Description (interpreted by application) |
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| Final
sub-header |
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| 8 |
i |
" 8" (indicates
end-of-list) |
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| Header
record of signal component (mandatory part) |
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| 6 |
i |
Number of lines per image |
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| 6 |
i |
Number of pixels per line |
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| 4 |
a |
Data format |
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| 48 |
- |
RESERVED for future extension |
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| Header
record of signal component (non-mandatory part) |
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| 2 |
i |
Temporal subsampling factor |
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| 2 |
i |
Line subsampling factor |
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| 2 |
i |
Pixel subsampling factor |
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| 2 |
i |
Temporal phase shift |
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| 2 |
i |
Line phase shift |
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| 2 |
i |
Pixel phase shift |
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| 5 |
a |
Component code |
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| 47 |
- |
RESERVED for future extension |
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| Auxiliary
data records |
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| These
records form a contiguous block of data, containing a sequence of variable
length auxiliary data. |
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| The length
of each auxiliary data chunk is described in the corresponding auxiliary
sub-header. |
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| 8 |
i |
Actual data length |
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| maxlen |
* |
The data (padded with zeroes to max
length indicated in aux header) |
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| NOTE |
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| Only the
first 64 bytes of a record are used to store information. The remaining
length will be padded with spaces. |
| Exception
to this are file descriptor records, auxiliary header records and auxiliary
data records, which utilize |
| the full
record length (padded with spaces or zeroes where required). |
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| Glossary |
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| record |
64 bytes or more. Length
is constant within a file |
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| mandatory |
Must always be present.
Describes file structure. |
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| non-mandatory |
Must always be present.
Contains vital additional information |
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| i |
[ ]*[ 0-9]* |
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| n+ |
Fortran type real e.g.
1.3E-3 |
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| a |
ASCII characters (range
20-128) |
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| - |
" " or ASCII 0 |
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| * |
Data bytes |
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