The QCELP coder type supports frame size of 20; frames per packet of 1, 2, or 3; and eVadEnableValue of CODER_VAD_DISABLE.
Updates to IPM_AUDIO_CODER_OPTIONS_INFO
The IPM_AUDIO_CODER_OPTIONS_INFO data structure has the following additional values:
unCoderOptions
For QCELP, set to CODER_OPT_SIGNALING_OFF.
unParm1
For QCELP, where the media type is
MEDIATYPE_AUDIO_REMOTE_CODER_OPTIONS_INFO, valid values are:
•CODER_OPT_CDMA_RATE_REDUC - Rate reduction. Bit rate is varied to achieve a variety of average bit rates for more flexibility in bandwidth usage.
nValue1
For QCELP 8 kbps, where unParm1=CODER_OPT_CDMA_RATE_REDUC, possible values are 0 and 4. Default value is 0.
For QCELP 13 kbps, where unParm1=CODER_OPT_CDMA_RATE_REDUC, possible values are 0, 1, 2, 3, and 4. Default value is 0.
unParm2
For QCELP, set to 0.
nValue2
For QCELP, set to 0.
10Dialogic® Multimedia Software for ATCA Release 1.0 Release Update, Rev 06 — January 23, 2008 Dialogic Corporation
