tweak BT + start to add AirPlay

components/airplay/airplay_sink.c

@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+#include "mdns.h"
+#include "nvs.h"
+#include "tcpip_adapter.h"
+#include "esp_log.h"
+#include "esp_console.h"
+#include "esp_pthread.h"
+#include "esp_system.h"
+#include "freertos/timers.h"
+#include "airplay_sink.h"
+
+#include "trace.h"
+
+static const char * TAG = "platform";
+extern char current_namespace[];
+
+void airplay_sink_init(void) {
+    const char *hostname;
+	char *airplay_name, sink_name[32] = CONFIG_AIRPLAY_NAME;
+	nvs_handle nvs;
+				
+	tcpip_adapter_get_hostname(TCPIP_ADAPTER_IF_STA, &hostname);
+
+    //initialize mDNS
+    ESP_ERROR_CHECK( mdns_init() );
+    ESP_ERROR_CHECK( mdns_hostname_set(hostname) );
+        
+    //structure with TXT records
+    mdns_txt_item_t serviceTxtData[] = {
+		{"am", "esp32"},
+		{"tp", "UDP"},
+		{"sm","false"}, 
+		{"sv","false"}, 
+		{"ek","1"},
+		{"et","0,1"},
+		{"md","0,1,2"},
+		{"cn","0,1"},
+		{"ch","2"},
+		{"ss","16"},
+		{"sr","44100"},
+		{"vn","3"},
+		{"txtvers","1"},
+	};
+	
+	if (nvs_open(current_namespace, NVS_READONLY, &nvs) == ESP_OK) {
+		size_t len = 31;
+		nvs_get_str(nvs, "airplay_sink_name", sink_name, &len);
+		nvs_close(nvs);
+	}	
+	
+	// AirPlay wants mDNS name to be MAC@name
+	uint8_t mac[6];	
+    esp_read_mac(mac, ESP_MAC_WIFI_STA);
+    asprintf(&airplay_name, "%02X%02X%02X%02X%02X%02X@%s",  mac[3], mac[4], mac[5], mac[3], mac[4], mac[5], sink_name);
+	
+	ESP_LOGI(TAG, "mdns hostname set to: [%s] with servicename %s", hostname, sink_name);
+
+    //initialize service
+    ESP_ERROR_CHECK( mdns_service_add(airplay_name, "_raop", "_tcp", 6000, serviceTxtData, sizeof(serviceTxtData) / sizeof(mdns_txt_item_t)) );
+	free(airplay_name);
+}

components/airplay/airplay_sink.h

@@ -0,0 +1,22 @@
+/*
+   This example code is in the Public Domain (or CC0 licensed, at your option.)
+
+   Unless required by applicable law or agreed to in writing, this
+   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+   CONDITIONS OF ANY KIND, either express or implied.
+*/
+
+#ifndef __AIRPLAY_SINK_H__
+#define __AIRPLAY_SINK_H__
+
+#include <stdint.h>
+
+//typedef enum { 	BT_SINK_CONNECTED, BT_SINK_DISCONNECTED, BT_SINK_PLAY, BT_SINK_STOP, BT_SINK_PAUSE, 
+				//BT_SINK_RATE, BT_SINK_VOLUME,  } bt_sink_cmd_t;
+
+/**
+ * @brief     init sink mode (need to be provided)
+ */
+void airplay_sink_init(void);
+
+#endif /* __AIRPLAY_SINK_H__*/

components/airplay/component.mk

@@ -0,0 +1,10 @@
+#
+# Component Makefile
+#
+# This Makefile should, at the very least, just include $(SDK_PATH)/Makefile. By default,
+# this will take the sources in the src/ directory, compile them and link them into
+# lib(subdirectory_name).a in the build directory. This behaviour is entirely configurable,
+# please read the SDK documents if you need to do this.
+#
+
+CFLAGS += 	-I$(COMPONENT_PATH)/../tools