+
−/*
+
− * The function implemented in this module is an aid for AMR-EFR interworking:
+
− * it is meant to be invoked directly after amr_encode_frame(), it checks
+
− * the encoder output for MR122 DHF, and if the generated frame exactly
+
− * matches MR122 DHF, it is changed to GSM-EFR DHF.
+
− */
+
−
+
−#include <stdint.h>
+
−#include <string.h>
+
−#include "tw_amr.h"
+
−
+
−void amr_dhf_subst_efr(struct amr_param_frame *frame)
+
−{
+
−	if (frame->type != TX_SPEECH_GOOD)
+
−		return;
+
−	if (frame->mode != MR122)
+
−		return;
+
−	if (memcmp(frame->param, amr_dhf_mr122, AMR_MAX_PRM * sizeof(int16_t)))
+
−		return;
+
−	memcpy(frame->param, amr_dhf_gsmefr, AMR_MAX_PRM * sizeof(int16_t));
+
−}