1 files changed, 93 insertions, 0 deletions
diff --git a/src/output/raop_output_plugin.c b/src/output/raop_output_plugin.c
index 735aea976..c82dd3c1a 100644
--- a/src/output/raop_output_plugin.c
+++ b/src/output/raop_output_plugin.c
@@ -21,11 +21,14 @@
 #include "output_api.h"
 #include "mixer_list.h"
 #include "raop_output_plugin.h"
+#include "ntp_server.h"
 #include "rtsp_client.h"
 #include "glib_compat.h"
 
 #include <glib.h>
 #include <unistd.h>
+#include <sys/time.h>
+#include <openssl/aes.h>
 #include <openssl/err.h>
 #include <openssl/rand.h>
 #include <openssl/rsa.h>
@@ -40,6 +43,96 @@
 #undef G_LOG_DOMAIN
 #define G_LOG_DOMAIN "raop"
 
+struct play_state {
+	bool playing;
+	unsigned short seq_num;
+	unsigned int rtptime;
+	unsigned int sync_src;
+	unsigned int start_rtptime;
+	struct timeval start_time;
+	struct timeval last_send;
+};
+
+/*********************************************************************/
+
+enum pause_state {
+	NO_PAUSE = 0,
+	OP_PAUSE,
+	NODATA_PAUSE,
+};
+
+#define MINIMUM_SAMPLE_SIZE 32
+
+#define RAOP_FD_READ (1<<0)
+#define RAOP_FD_WRITE (1<<1)
+
+/*********************************************************************/
+
+struct encrypt_data {
+	AES_KEY ctx;
+	unsigned char iv[16]; // initialization vector for aes-cbc
+	unsigned char nv[16]; // next vector for aes-cbc
+	unsigned char key[16]; // key for aes-cbc
+};
+
+/*********************************************************************/
+
+struct raop_data {
+	struct rtspcl_data *rtspcl;
+	const char *addr; // target host address
+	short rtsp_port;
+	struct sockaddr_in ctrl_addr;
+	struct sockaddr_in data_addr;
+
+	bool is_master;
+	struct raop_data *next;
+
+	unsigned volume;
+
+	GMutex *control_mutex;
+
+	bool started;
+	bool paused;
+};
+
+/*********************************************************************/
+
+struct control_data {
+	unsigned short port;
+	int fd;
+};
+
+/*********************************************************************/
+
+#define NUMSAMPLES 352
+#define RAOP_BUFFER_SIZE NUMSAMPLES * 4
+#define RAOP_HEADER_SIZE 12
+#define ALAC_MAX_HEADER_SIZE 8
+#define RAOP_MAX_PACKET_SIZE RAOP_BUFFER_SIZE + RAOP_HEADER_SIZE + ALAC_MAX_HEADER_SIZE
+
+// session
+struct raop_session_data {
+	struct raop_data *raop_list;
+	struct ntp_server ntp;
+	struct control_data ctrl;
+	struct encrypt_data encrypt;
+	struct play_state play_state;
+
+	int data_fd;
+
+	unsigned char buffer[RAOP_BUFFER_SIZE];
+	size_t bufferSize;
+
+	unsigned char data[RAOP_MAX_PACKET_SIZE];
+	int wblk_wsize;
+	int wblk_remsize;
+
+	GMutex *data_mutex;
+	GMutex *list_mutex;
+};
+
+/*********************************************************************/
+
 static struct raop_session_data *raop_session = NULL;
 
 /**