rtsp: Start implementing support for RTSP 2.0

Properly handle protocol version in the connection

Add the following headers types:
  * Pipelined-Request
  * Media-Properties
  * Seek-Style
  * Accept-Ranges

https://bugzilla.gnome.org/show_bug.cgi?id=781446

gst-libs/gst/rtsp/gstrtspconnection.c

@@ -109,6 +109,7 @@ struct _GstRTSPConnection
   /*< private > */
   /* URL for the remote connection */
   GstRTSPUrl *url;
+  GstRTSPVersion version;
 
   gboolean server;
   GSocketClient *client;
@@ -314,6 +315,7 @@ gst_rtsp_connection_create (const GstRTSPUrl * url, GstRTSPConnection ** conn)
   newconn->username = NULL;
   newconn->passwd = NULL;
   newconn->auth_params = NULL;
+  newconn->version = 0;
 
   *conn = newconn;
 
@@ -1454,10 +1456,12 @@ message_to_string (GstRTSPConnection * conn, GstRTSPMessage * message)
   switch (message->type) {
     case GST_RTSP_MESSAGE_REQUEST:
       /* create request string, add CSeq */
-      g_string_append_printf (str, "%s %s RTSP/1.0\r\n"
+      g_string_append_printf (str, "%s %s RTSP/%s\r\n"
           "CSeq: %d\r\n",
           gst_rtsp_method_as_text (message->type_data.request.method),
-          message->type_data.request.uri, conn->cseq++);
+          message->type_data.request.uri,
+          gst_rtsp_version_as_text (message->type_data.request.version),
+          conn->cseq++);
       /* add session id if we have one */
       if (conn->session_id[0] != '\0') {
         gst_rtsp_message_remove_header (message, GST_RTSP_HDR_SESSION, -1);
@@ -1469,7 +1473,8 @@ message_to_string (GstRTSPConnection * conn, GstRTSPMessage * message)
       break;
     case GST_RTSP_MESSAGE_RESPONSE:
       /* create response string */
-      g_string_append_printf (str, "RTSP/1.0 %d %s\r\n",
+      g_string_append_printf (str, "RTSP/%s %d %s\r\n",
+          gst_rtsp_version_as_text (message->type_data.response.version),
           message->type_data.response.code, message->type_data.response.reason);
       break;
     case GST_RTSP_MESSAGE_HTTP_REQUEST:
@@ -1626,6 +1631,7 @@ static GstRTSPResult
 parse_protocol_version (gchar * protocol, GstRTSPMsgType * type,
     GstRTSPVersion * version)
 {
+  GstRTSPVersion rversion;
   GstRTSPResult res = GST_RTSP_OK;
   gchar *ver;
 
@@ -1640,8 +1646,10 @@ parse_protocol_version (gchar * protocol, GstRTSPMsgType * type,
     if (sscanf (ver, "%u.%u%c", &major, &minor, &dummychar) != 2)
       res = GST_RTSP_EPARSE;
 
+    rversion = major * 0x10 + minor;
     if (g_ascii_strcasecmp (protocol, "RTSP") == 0) {
-      if (major != 1 || minor != 0) {
+
+      if (rversion != GST_RTSP_VERSION_1_0 && rversion != GST_RTSP_VERSION_2_0) {
         *version = GST_RTSP_VERSION_INVALID;
         res = GST_RTSP_ERROR;
       }
@@ -1651,17 +1659,17 @@ parse_protocol_version (gchar * protocol, GstRTSPMsgType * type,
       else if (*type == GST_RTSP_MESSAGE_RESPONSE)
         *type = GST_RTSP_MESSAGE_HTTP_RESPONSE;
 
-      if (major == 1 && minor == 1) {
-        *version = GST_RTSP_VERSION_1_1;
-      } else if (major != 1 || minor != 0) {
-        *version = GST_RTSP_VERSION_INVALID;
+      if (rversion != GST_RTSP_VERSION_1_0 &&
+          rversion != GST_RTSP_VERSION_1_1 && rversion != GST_RTSP_VERSION_2_0)
         res = GST_RTSP_ERROR;
-      }
     } else
       res = GST_RTSP_EPARSE;
   } else
     res = GST_RTSP_EPARSE;
 
+  if (res == GST_RTSP_OK)
+    *version = rversion;
+
   return res;
 }
 

gst-libs/gst/rtsp/gstrtspdefs.c

@@ -57,6 +57,7 @@
 #include <string.h>
 
 #include "gstrtspdefs.h"
+#include <gst/gst.h>
 
 struct rtsp_header
 {
@@ -176,6 +177,12 @@ static struct rtsp_header rtsp_headers[] = {
   /* Since 1.4 */
   {"KeyMgmt", FALSE},
 
+  /* Since 1.XX */
+  {"Pipelined-Requests", FALSE},
+  {"Media-Properties", FALSE},
+  {"Seek-Style", FALSE},
+  {"Accept-Ranges", FALSE},
+
   {NULL, FALSE}
 };
 
@@ -338,6 +345,10 @@ gst_rtsp_version_as_text (GstRTSPVersion version)
     case GST_RTSP_VERSION_1_1:
       return "1.1";
 
+    case GST_RTSP_VERSION_2_0:
+      return "2.0";
+
+
     default:
       return "0.0";
   }

gst-libs/gst/rtsp/gstrtspdefs.h

@@ -71,7 +71,7 @@ G_STMT_START { \
  * @GST_RTSP_ERESOLV: a host resolve error occured
  * @GST_RTSP_ENOTIMPL: function not implemented
  * @GST_RTSP_ESYS: a system error occured, errno contains more details
- * @GST_RTSP_EPARSE: a persing error occured
+ * @GST_RTSP_EPARSE: a parsing error occured
  * @GST_RTSP_EWSASTART: windows networking could not start
  * @GST_RTSP_EWSAVERSION: windows networking stack has wrong version
  * @GST_RTSP_EEOF: end-of-file was reached
@@ -158,13 +158,15 @@ typedef enum {
  * @GST_RTSP_VERSION_INVALID: unknown/invalid version
  * @GST_RTSP_VERSION_1_0: version 1.0
  * @GST_RTSP_VERSION_1_1: version 1.1.
+ * @GST_RTSP_VERSION_2_0: version 2.0.
  *
  * The supported RTSP versions.
  */
 typedef enum {
   GST_RTSP_VERSION_INVALID = 0x00,
   GST_RTSP_VERSION_1_0     = 0x10,
-  GST_RTSP_VERSION_1_1     = 0x11
+  GST_RTSP_VERSION_1_1     = 0x11,
+  GST_RTSP_VERSION_2_0     = 0x20
 } GstRTSPVersion;
 
 /**
@@ -332,6 +334,12 @@ typedef enum {
   /* Since 1.4 */
   GST_RTSP_HDR_KEYMGMT,             /* KeyMgmt */
 
+  /* Since 1.X */
+  GST_RTSP_HDR_PIPELINED_REQUESTS,  /* Pipelined-Requests Rr     opt.      SETUP */
+  GST_RTSP_HDR_MEDIA_PROPERTIES,    /* Media-Properties   Rr     opt.      SETUP */
+  GST_RTSP_HDR_SEEK_STYLE,          /* Seek-Type          Rr     opt.      PLAY */
+  GST_RTSP_HDR_ACCEPT_RANGES,       /* Accept-Ranges      Rr     opt.      SETUP, GET_PARAMETER */
+
   GST_RTSP_HDR_LAST
 } GstRTSPHeaderField;
 

gst-libs/gst/rtsp/gstrtspextension.h

@@ -40,6 +40,11 @@ G_BEGIN_DECLS
 #define GST_RTSP_EXTENSION_GET_INTERFACE(inst) \
   (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_RTSP_EXTENSION, GstRTSPExtensionInterface))
 
+/**
+ * GstRTSPExtension:
+ *
+ * An interface representing RTSP extensions.
+ */
 typedef struct _GstRTSPExtension GstRTSPExtension;
 typedef struct _GstRTSPExtensionInterface GstRTSPExtensionInterface;