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comparison doc/RTP-analysis @ 4:5216e7fb1c9e

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doc: update for new FR/EFR RTP payload formats
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 16 Apr 2023 07:55:21 +0000
parents 05ff0f7ac977
children
comparison
equal deleted inserted replaced
3:50aa973a91ef 4:5216e7fb1c9e
27 payload, presumed to be either PCMU or PCMA. (The payload type 27 payload, presumed to be either PCMU or PCMA. (The payload type
28 number is NOT considered, only the payload length.) The 28 number is NOT considered, only the payload length.) The
29 selected G.711 RTP stream is then extracted and written into a 29 selected G.711 RTP stream is then extracted and written into a
30 raw binary file. 30 raw binary file.
31 31
32 rtp-gsmfr-extr This program focuses on a single selected RTP stream like the 32 rtp-gsmfr-dump This program focuses on a single selected RTP stream like the
33 others, enforces its continuity just like rtp-cont-check, but 33 others, enforces its continuity just like rtp-cont-check, and
34 then further enforces that every RTP packet be one of these 3 34 then expects the RTP payload to be one of GSM FR or EFR formats
35 possibilities: a GSM FR1 codec frame, a GSM EFR codec frame or 35 listed in the FR-EFR-formats document. Each recognized FR/EFR
36 a Themyscira BFI marker as defined in the RTP-BFI-extension 36 or BFI payload is then dumped in human-readable form on stdout,
37 document. (The payload type number is NOT considered, only the 37 similarly to the gsmrec-dump utility from Themyscira Wireless
38 payload length and the characteristic signature of each of the 38 GSM codec libraries & utilities package.
39 3 allowed possibilities.) The selected RTP stream is then 39
40 extracted and written into a gsmx file (see Binary-file-format), 40 rtp-gsmfr-extr This program operates like rtp-gsmfr-dump, imposing the same
41 which can then be analyzed with gsmrec-dump or decoded to 41 expectations on the selected RTP stream, but the latter stream
42 playable WAV with gsmfr-decode or gsmefr-decode. 42 is then extracted and written into a gsmx binary file, as
43 defined in the GSM codec libraries and utilities package.
43 44
44 rtp-jitter-view This program analyzes a single selected RTP stream just like 45 rtp-jitter-view This program analyzes a single selected RTP stream just like
45 rtp-cont-check, but instead of reporting minimum and maximum 46 rtp-cont-check, but instead of reporting minimum and maximum
46 time deltas for the entire stream, it prints the individual 47 time deltas for the entire stream, it prints the individual
47 capture time delta between every successive pair of packets. 48 capture time delta between every successive pair of packets.