osmocom
/
libosmocore
mirror of https://gerrit.osmocom.org/libosmocore
11
0
Fork 0
Code Issues Releases Wiki Activity

AMR: add function to check speech frames 

Add convenience function osmo_amr_is_speech() to check if given AMR
frame is speech frame: non-speech frames often require special
processing.

Change-Id: Ifaab02a2f581acc302b367d34fd2fc28a4d1e2e3
This commit is contained in:
Max 2016-09-27 13:51:51 +02:00 committed by Harald Welte
parent 8a3409c4b7
commit 74a8f0831d
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
include/osmocom/codec/codec.h
View File

@ -42,6 +42,27 @@ enum osmo_amr_quality {
AMR_GOOD = 1
};
/*! \brief Check if given AMR Frame Type is a speech frame
* \param[in] ft AMR Frame Type
* \returns true if AMR with given Frame Type contains voice, false otherwise
*/
inline bool osmo_amr_is_speech(enum osmo_amr_type ft)
{
switch (ft) {
case AMR_4_75:
case AMR_5_15:
case AMR_5_90:
case AMR_6_70:
case AMR_7_40:
case AMR_7_95:
case AMR_10_2:
case AMR_12_2:
return true;
default:
return false;
}
}
bool osmo_fr_check_sid(uint8_t *rtp_payload, size_t payload_len);
bool osmo_hr_check_sid(uint8_t *rtp_payload, size_t payload_len);
int osmo_amr_rtp_enc(uint8_t *payload, uint8_t cmr, enum osmo_amr_type ft,