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d1f8f3429c
Since 95407f3f osmo-bts-trx supports scheduling all CSD specific
channel rates, however the rate adaptation was missing.
On the radio interface we deal with CSD-modified V.110 frames, which
need to be converted to normal 80-bit V.110 frames (RA1'/RA1), which
in turn need to be batched and sent in RFC4040 "clearmode" 160 octet
RTP payloads (RA1/RA2 as per I.460).
Note that this patch comments out TCH/F14.4 in bts_supports_cm_data(),
so that all channel allocations for this mode would be NACKed. The
reason for this is that the rate adaptation functions for TCH/F14.4
are different than the RA1'/RA1 and the RA1/RA2.
For more information, see:
* 3GPP TS 44.021, section 8 (functions RA1'/RA1)
* ITU-T I.460, section 1.1 "Rate adaption of 8, 16 and 32 kbit/s streams"
Change-Id: I5e3701ad52d5d428fd02caff037881045f2d0a02
Related: OS#1572
67 lines
3.2 KiB
Plaintext
67 lines
3.2 KiB
Plaintext
[i] Skipping 'TCH/F14.4' (not implemented)
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[i] Testing 'TCH/F9.6' (bitnum=240)
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[i] csd_v110_rtp_encode() returns 160
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ff 7f 7f 7f bf bf bf bf ff 7f 7f 7f bf 3f 7f 7f
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bf bf bf bf ff 7f 7f 7f bf bf bf bf ff 7f 7f 7f
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3f 3f 3f 3f bf bf bf bf ff 7f 7f 7f bf bf bf bf
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ff 7f 7f 7f bf 3f 7f 7f bf bf bf bf ff 7f 7f 7f
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bf bf bf bf ff 7f 7f 7f 3f 3f 3f 3f bf bf bf bf
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ff 7f 7f 7f bf bf bf bf ff 7f 7f 7f bf 3f 7f 7f
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bf bf bf bf ff 7f 7f 7f bf bf bf bf ff 7f 7f 7f
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[i] csd_v110_rtp_decode() returns 240
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[i] Testing 'TCH/F4.8' (bitnum=120)
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[i] csd_v110_rtp_encode() returns 160
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7f 7f 7f 7f 7f 7f 7f 7f ff 7f ff 7f ff 7f ff 7f
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ff ff 7f ff 7f ff 7f ff ff 7f 7f 7f 7f ff 7f ff
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ff 7f ff 7f ff 7f ff 7f ff ff 7f ff 7f ff 7f ff
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ff 7f ff 7f ff 7f ff 7f ff ff 7f ff 7f ff 7f ff
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ff ff 7f ff 7f ff 7f ff ff 7f ff 7f ff 7f ff 7f
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ff ff 7f ff 7f ff 7f ff ff 7f 7f 7f 7f ff 7f ff
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ff 7f ff 7f ff 7f ff 7f ff ff 7f ff 7f ff 7f ff
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ff 7f ff 7f ff 7f ff 7f ff ff 7f ff 7f ff 7f ff
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[i] csd_v110_rtp_decode() returns 120
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[i] Testing 'TCH/H4.8' (bitnum=240)
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[i] csd_v110_rtp_encode() returns 160
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3f 3f 3f 3f bf bf bf bf ff 7f 7f 7f bf bf bf bf
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ff 7f 7f 7f bf 3f 7f 7f bf bf bf bf ff 7f 7f 7f
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bf bf bf bf ff 7f 7f 7f 3f 3f 3f 3f bf bf bf bf
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bf bf bf bf ff 7f 7f 7f bf bf bf bf ff 7f 7f 7f
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ff 7f 7f 7f bf 3f 7f 7f bf bf bf bf ff 7f 7f 7f
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bf bf bf bf ff 7f 7f 7f bf bf bf bf ff 7f 7f 7f
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[i] csd_v110_rtp_decode() returns 240
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[i] Testing 'TCH/F2.4' (bitnum=72)
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[i] csd_v110_rtp_encode() returns 160
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7f 7f 7f 7f 7f 7f 7f 7f ff 7f 7f ff ff 7f 7f ff
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ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff
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ff 7f 7f ff ff 7f 7f ff ff 7f 7f 7f 7f ff 7f ff
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ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff
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ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff
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ff 7f 7f ff ff 7f 7f ff ff 7f 7f 7f 7f ff 7f ff
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ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff
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ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff ff 7f 7f ff
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[i] csd_v110_rtp_decode() returns 72
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[i] Testing 'TCH/H2.4' (bitnum=144)
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[i] csd_v110_rtp_encode() returns 160
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bf 7f bf 7f bf 3f 7f 7f bf 7f bf 7f bf 7f bf 7f
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bf 7f bf 7f bf 7f bf 7f bf 7f bf 7f bf 7f bf 7f
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[i] csd_v110_rtp_decode() returns 144
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