ProMPEG FEC Support for IP Streaming in E57xx Encoders
Reference Guide: evolution 5000 E5780 and E5782 Encoder
Page K-3
ST.RE.E10135.4
K.1 Introduction
With the V3.8.1 software release of the E57xx encoder, IP streaming corresponding to the
ProMPEG FEC protocol is possible.
This Annex provides supplementary information on setting up ProMPEG FEC only.
NOTES
The current IP streamer option card is NOT capable of being upgraded to support ProMPEG FEC. A
new card must be installed (M2/EOM2/IP/PROFEC).
Only one IP streamer card may be installed in an E57xx encoder.
K.2 ProMPEG
FEC
K.2.1 Introduction
The ProMPEG Forward Error Correction(FEC) scheme is designed to recover lost or
corrupted packets caused when transferring MPEG-2 transport streams, or newer MPEG
standards encapsulated as an MPEG-2 transport streams, over an IP network.
The ProMPEG FEC scheme has been implement to the
ProMPEG Code of Practice #3
release 2
.
FEC packets are generated for every column and
optionally
for every row. To generate the
FEC packets, RTP frames based on their Sequence Numbers are arranged in a rectangle of
dimensions D * L. The Payload of the FEC packet generated is the ExOR of the row/column it
protects.
1
1
6
5
4
3
2
7
7
12
11
10
9
8
13
13
18
17
16
15
14
19
19
24
23
22
21
20
25
25
30
29
28
27
26
1
6
5
4
3
2
Co
L
umns (L)
Ro
ws (D)
Figure K.1: Columns and Rows
Содержание E5780
Страница 42: ...Options and Upgrades Page 3 4 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 176: ...Web Browser Interface Page 5 2 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 184: ...Web Browser Interface Page 5 10 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 210: ...Glossary Page A 12 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 232: ...Technical Specification Page B 22 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 236: ...Creating and Downloading a Logo Page D 2 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 248: ...Creating and Downloading a Logo Page D 14 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 250: ...Band Plans Page E 2 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 258: ...Audio Modes Page F 2 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 266: ...Audio Modes Page F 10 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 268: ...Accuracy of Frequency Sources Page G 2 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...
Страница 270: ...Use of Remux Card in ASTC Page H 2 Reference Guide evolution 5000 E5780 and E5782 Encoder ST RE E10135 4 BLANK...