FS-8876 make function public and use it in conference also

src/include/switch_core.h

@@ -2735,6 +2735,8 @@ SWITCH_DECLARE(const char *)switch_version_revision_human(void);
 SWITCH_DECLARE(const char *)switch_version_full(void);
 SWITCH_DECLARE(const char *)switch_version_full_human(void);
 
+SWITCH_DECLARE(void) switch_core_autobind_cpu(void);
+
 SWITCH_END_EXTERN_C
 #endif
 /* For Emacs:

src/mod/applications/mod_conference/conference_video.c

@@ -1486,6 +1486,8 @@ void *SWITCH_THREAD_FUNC conference_video_muxing_write_thread_run(switch_thread_
 		return NULL;
 	}
 
+	switch_core_autobind_cpu();
+
 	while(conference_utils_member_test_flag(member, MFLAG_RUNNING)) {
 		if (switch_queue_pop(member->mux_out_queue, &pop) == SWITCH_STATUS_SUCCESS) {
 			mcu_layer_t *layer = NULL;

src/switch_core_media.c

@@ -5147,9 +5147,11 @@ int next_cpu(void)
 	return x;
 }
 
-static void bind_cpu(void)
+SWITCH_DECLARE(void) switch_core_autobind_cpu(void)
 {
-	switch_core_thread_set_cpu_affinity(next_cpu());
+	if (video_globals.cpu_count > 1) {
+		switch_core_thread_set_cpu_affinity(next_cpu());
+	}
 }
 
 
@@ -5174,7 +5176,7 @@ static void *SWITCH_THREAD_FUNC video_helper_thread(switch_thread_t *thread, voi
 		return NULL;
 	}
 
-	bind_cpu();
+	switch_core_autobind_cpu();
 
 	if ((var = switch_channel_get_variable(session->channel, "core_video_blank_image"))) {
 		blank_img = switch_img_read_png(var, SWITCH_IMG_FMT_I420);