1 files changed, 73 insertions, 0 deletions
diff --git a/decoders/rtp/rtp_internal.h b/decoders/rtp/rtp_internal.h
new file mode 100644
index 0000000..5d8983d
--- /dev/null
+++ b/decoders/rtp/rtp_internal.h
@@ -0,0 +1,73 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#ifndef UNUSED
+#define UNUSED(x) (void)(x)
+#endif
+    
+#define RTP_MODULE_NAME     "RTP_MODULE"
+#define RTP_EXDATA_NAME     "RTP_EXDATA"
+#define RTP_TOPIC_NAME      "RTP_TOPIC"
+#define RTP_IDENTIFY_TIMES_MAX 128
+#define RTP_HEADER_LEN          12
+#define STUN_HEADER_LEN         20
+
+enum rtp_identify_state {
+    RTP_IDENTIFY_STATE_UNKNOWN,
+    RTP_IDENTIFY_STATE_HALF_TRUE,
+    RTP_IDENTIFY_STATE_TRUE,
+    RTP_IDENTIFY_STATE_FALSE,
+};
+
+enum stun_type {
+    STUN_BINDING_REQUEST            = 0x0001,
+    STUN_BINDING_INDECATION         = 0x0011,
+    STUN_BINDING_RESPONSE           = 0x0101,
+    STUN_BINDING_ERROR_RESPONSE     = 0x0111,
+};
+
+struct stun_header {
+    /* little-endian */
+    /* byte 0-1 */
+    unsigned short type;
+    /* byte 2-3 */
+    unsigned short len;
+    /* bytes 4-7 */
+    unsigned int magic_cookie;
+} __attribute__ ((packed));
+
+struct rtp_message {
+    struct session *sess;
+
+    struct rtp_header *hdr;
+    const char *payload;
+    size_t payload_len;
+};
+
+struct rtp_exdata {
+    enum rtp_identify_state identify_state;
+    int                     identify_times;
+
+    enum packet_direction   first_pkt_dir;
+    unsigned short          last_client_seq;
+    unsigned short          last_server_seq;
+    unsigned int            last_client_ssrc;
+    unsigned int            last_server_ssrc;
+
+    int             sess_ignore;
+};
+
+struct rtp_module_ctx {
+    int topic_id;
+    int exdata_id;
+
+    struct stellar_module_manager *mod_mgr;
+};
+
+#ifdef __cplusplus
+}
+#endif