| H263Packet Class |
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|F|P|SBIT |EBIT | SRC |I|U|S|A|R |DBQ| TRB | TR |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Inheritance HierarchyNamespace: Ozeki.VoIP
Assembly: OzekiSDK (in OzekiSDK.dll) Version: 1.8.12.0 (1.8.12)
SyntaxThe H263Packet type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | H263Packet | Initializes a new instance of the H263Packet class |
MethodsFields| Name | Description | |
|---|---|---|
  | H263_HEADER_SIZE |
Properties| Name | Description | |
|---|---|---|
 | A |
A: 1 bit
Set to 1 if the Advanced Prediction option, bit 12 in PTYPE defined
by H.263 [4] was set to 1 for current picutre header, otherwise 0.
|
| CompletedPacket | |
| DBQ |
DBQ: 2 bits
Differential quantization parameter used to calculate quantizer for
the B frame based on quantizer for the P frame, when PB-frames option
is used. The value should be the same as DBQUANT defined by H.263
[4]. Set to zero if PB-frames option is not used.
|
| EBit |
EBIT: 3 bits
End bit position specifies number of least significant bits that
shall be ignored in the last data byte.
|
| F |
F: 1 bit
The flag bit indicates the mode of the payload header. F=0, mode A;
F=1, mode B or mode C depending on P bit defined below.
|
| I |
I: 1 bit.
Picture coding type, bit 9 in PTYPE defined by H.263[4], "0" is
intra-coded, "1" is inter-coded.
|
| P |
P: 1 bit
Optional PB-frames mode as defined by the H.263 [4]. "0" implies
normal I or P frame, "1" PB-frames. When F=1, P also indicates modes:
mode B if P=0, mode C if P=1.
|
| Payload | |
| R |
R: 4 bits
Reserved, must be set to zero.
|
| S |
S: 1 bit
Set to 1 if the Syntax-based Arithmetic Coding option, bit 11 in
PTYPE defined by the H.263 [4] was set to 1 for current picture
header, otherwise 0.
|
| SBit | |
| SRC |
SRC : 3 bits
Source format, bit 6,7 and 8 in PTYPE defined by H.263 [4], specifies
the resolution of the current picture.
001 SUB-CIF 128x96
010 QCIF 176x144
011 CIF 352x288
100 4CIF 704x576
101 16CIF 1408x1152
|
| Timestamp | |
| TR |
TR: 8 bits
Temporal Reference for the P frame as defined by H.263 [4]. Set to
zero if the PB-frames option is not used.
|
| TRB |
TRB: 3 bits
Temporal Reference for the B frame as defined by H.263 [4]. Set to
zero if PB-frames option is not used.
|
| U |
U: 1 bit
Set to 1 if the Unrestricted Motion Vector option, bit 10 in PTYPE
defined by H.263 [4] was set to 1 in the current picture header,
otherwise 0.
|
See Also