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/**
* @file mpa/sdp.c mpa SDP Functions
*
* Copyright (C) 2016 Symonics GmbH
*/
#include <re.h>
#include <baresip.h>
#include <string.h>
#include "mpa.h"
static void assign_if (uint32_t *v, const struct pl *pl,
uint32_t min, uint32_t max)
{
const uint32_t val = pl_u32(pl);
if (val < min || val > max)
return;
*v = val;
}
void mpa_decode_fmtp(struct mpa_param *prm, const char *fmtp)
{
struct pl pl, val;
if (!prm || !fmtp)
return;
pl_set_str(&pl, fmtp);
if (fmt_param_get(&pl, "bitrate", &val))
assign_if (&prm->bitrate, &val, 8000, 384000);
if (fmt_param_get(&pl, "samplerate", &val))
assign_if (&prm->samplerate, &val, 16000, 48000);
if (fmt_param_get(&pl, "layer", &val))
assign_if (&prm->layer, &val, 1, 3);
if (fmt_param_get(&pl, "mode", &val)) {
if (!strncmp("stereo",val.p,val.l))
prm->mode = STEREO;
else if (!strncmp("joint_stereo",val.p,val.l))
prm->mode = JOINT_STEREO;
else if (!strncmp("single_channel",val.p,val.l))
prm->mode = SINGLE_CHANNEL;
else if (!strncmp("dual_channel",val.p,val.l))
prm->mode = DUAL_CHANNEL;
}
}
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