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-rw-r--r--pjsip/src/pjsua-lib/pjsua_core.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/pjsip/src/pjsua-lib/pjsua_core.c b/pjsip/src/pjsua-lib/pjsua_core.c
index d170b664..bc0cc406 100644
--- a/pjsip/src/pjsua-lib/pjsua_core.c
+++ b/pjsip/src/pjsua-lib/pjsua_core.c
@@ -309,10 +309,23 @@ PJ_DEF(void) pjsua_buddy_config_default(pjsua_buddy_config *cfg)
PJ_DEF(void) pjsua_media_config_default(pjsua_media_config *cfg)
{
+ const pj_sys_info *si = pj_get_sys_info();
+ pj_str_t dev_model = {"iPhone5", 7};
+
pj_bzero(cfg, sizeof(*cfg));
cfg->clock_rate = PJSUA_DEFAULT_CLOCK_RATE;
- cfg->snd_clock_rate = 0;
+ /* It is reported that there may be some media server resampling problem
+ * with iPhone 5 devices running iOS 7, so we set the sound device's
+ * clock rate to 44100 to avoid resampling.
+ */
+ if (pj_stristr(&si->machine, &dev_model) &&
+ ((si->os_ver & 0xFF000000) >> 24) >= 7)
+ {
+ cfg->snd_clock_rate = 44100;
+ } else {
+ cfg->snd_clock_rate = 0;
+ }
cfg->channel_count = 1;
cfg->audio_frame_ptime = PJSUA_DEFAULT_AUDIO_FRAME_PTIME;
cfg->max_media_ports = PJSUA_MAX_CONF_PORTS;