rtspcodes: add full list of RTSP status codes

Also add reason phrases from http://www.ietf.org/rfc/rfc2326.txt
and macro to translate.
Signed-off-by: Reynaldo H. Verdejo Pinochet <r.verdejo@sisa.samsung.com>

libavformat/rtspcodes.h

 /*
  * RTSP definitions
  * copyright (c) 2002 Fabrice Bellard
+ * copyright (c) 2014 Samsung Electronics. All rights reserved.
+ *     @Author: Reynaldo H. Verdejo Pinochet <r.verdejo@sisa.samsung.com>
  *
  * This file is part of FFmpeg.
  *
@@ -24,19 +26,103 @@
 
 /** RTSP handling */
 enum RTSPStatusCode {
-RTSP_STATUS_OK              =200, /**< OK */
-RTSP_STATUS_METHOD          =405, /**< Method Not Allowed */
-RTSP_STATUS_BANDWIDTH       =453, /**< Not Enough Bandwidth */
-RTSP_STATUS_SESSION         =454, /**< Session Not Found */
-RTSP_STATUS_STATE           =455, /**< Method Not Valid in This State */
-RTSP_STATUS_AGGREGATE       =459, /**< Aggregate operation not allowed */
-RTSP_STATUS_ONLY_AGGREGATE  =460, /**< Only aggregate operation allowed */
-RTSP_STATUS_TRANSPORT       =461, /**< Unsupported transport */
-RTSP_STATUS_INTERNAL        =500, /**< Internal Server Error */
-RTSP_STATUS_SERVICE         =503, /**< Service Unavailable */
-RTSP_STATUS_VERSION         =505, /**< RTSP Version not supported */
+RTSP_STATUS_CONTINUE             =100,
+RTSP_STATUS_OK                   =200,
+RTSP_STATUS_CREATED              =201,
+RTSP_STATUS_LOW_ON_STORAGE_SPACE =250,
+RTSP_STATUS_MULTIPLE_CHOICES     =300,
+RTSP_STATUS_MOVED_PERMANENTLY    =301,
+RTSP_STATUS_MOVED_TEMPORARILY    =302,
+RTSP_STATUS_SEE_OTHER            =303,
+RTSP_STATUS_NOT_MODIFIED         =304,
+RTSP_STATUS_USE_PROXY            =305,
+RTSP_STATUS_BAD_REQUEST          =400,
+RTSP_STATUS_UNAUTHORIZED         =401,
+RTSP_STATUS_PAYMENT_REQUIRED     =402,
+RTSP_STATUS_FORBIDDEN            =403,
+RTSP_STATUS_NOT_FOUND            =404,
+RTSP_STATUS_METHOD               =405,
+RTSP_STATUS_NOT_ACCEPTABLE       =406,
+RTSP_STATUS_PROXY_AUTH_REQUIRED  =407,
+RTSP_STATUS_REQ_TIME_OUT         =408,
+RTSP_STATUS_GONE                 =410,
+RTSP_STATUS_LENGTH_REQUIRED      =411,
+RTSP_STATUS_PRECONDITION_FAILED  =412,
+RTSP_STATUS_REQ_ENTITY_2LARGE    =413,
+RTSP_STATUS_REQ_URI_2LARGE       =414,
+RTSP_STATUS_UNSUPPORTED_MTYPE    =415,
+RTSP_STATUS_PARAM_NOT_UNDERSTOOD =451,
+RTSP_STATUS_CONFERENCE_NOT_FOUND =452,
+RTSP_STATUS_BANDWIDTH            =453,
+RTSP_STATUS_SESSION              =454,
+RTSP_STATUS_STATE                =455,
+RTSP_STATUS_INVALID_HEADER_FIELD =456,
+RTSP_STATUS_INVALID_RANGE        =457,
+RTSP_STATUS_RONLY_PARAMETER      =458,
+RTSP_STATUS_AGGREGATE            =459,
+RTSP_STATUS_ONLY_AGGREGATE       =460,
+RTSP_STATUS_TRANSPORT            =461,
+RTSP_STATUS_UNREACHABLE          =462,
+RTSP_STATUS_INTERNAL             =500,
+RTSP_STATUS_NOT_IMPLEMENTED      =501,
+RTSP_STATUS_BAD_GATEWAY          =502,
+RTSP_STATUS_SERVICE              =503,
+RTSP_STATUS_GATEWAY_TIME_OUT     =504,
+RTSP_STATUS_VERSION              =505,
+RTSP_STATUS_UNSUPPORTED_OPTION   =551,
 };
 
+static const av_unused char *rtsp_status_strings[] = {
+[RTSP_STATUS_CONTINUE]               ="Continue",
+[RTSP_STATUS_OK]                     ="OK",
+[RTSP_STATUS_CREATED]                ="Created",
+[RTSP_STATUS_LOW_ON_STORAGE_SPACE]   ="Low on Storage Space",
+[RTSP_STATUS_MULTIPLE_CHOICES]       ="Multiple Choices",
+[RTSP_STATUS_MOVED_PERMANENTLY]      ="Moved Permanently",
+[RTSP_STATUS_MOVED_TEMPORARILY]      ="Moved Temporarily",
+[RTSP_STATUS_SEE_OTHER]              ="See Other",
+[RTSP_STATUS_NOT_MODIFIED]           ="Not Modified",
+[RTSP_STATUS_USE_PROXY]              ="Use Proxy",
+[RTSP_STATUS_BAD_REQUEST]            ="Bad Request",
+[RTSP_STATUS_UNAUTHORIZED]           ="Unauthorized",
+[RTSP_STATUS_PAYMENT_REQUIRED]       ="Payment Required",
+[RTSP_STATUS_FORBIDDEN]              ="Forbidden",
+[RTSP_STATUS_NOT_FOUND]              ="Not Found",
+[RTSP_STATUS_METHOD]                 ="Method Not Allowed",
+[RTSP_STATUS_NOT_ACCEPTABLE]         ="Not Acceptable",
+[RTSP_STATUS_PROXY_AUTH_REQUIRED]    ="Proxy Authentication Required",
+[RTSP_STATUS_REQ_TIME_OUT]           ="Request Time-out",
+[RTSP_STATUS_GONE]                   ="Gone",
+[RTSP_STATUS_LENGTH_REQUIRED]        ="Length Required",
+[RTSP_STATUS_PRECONDITION_FAILED]    ="Precondition Failed",
+[RTSP_STATUS_REQ_ENTITY_2LARGE]      ="Request Entity Too Large",
+[RTSP_STATUS_REQ_URI_2LARGE]         ="Request URI Too Large",
+[RTSP_STATUS_UNSUPPORTED_MTYPE]      ="Unsupported Media Type",
+[RTSP_STATUS_PARAM_NOT_UNDERSTOOD]   ="Parameter Not Understood",
+[RTSP_STATUS_CONFERENCE_NOT_FOUND]   ="Conference Not Found",
+[RTSP_STATUS_BANDWIDTH]              ="Not Enough Bandwidth",
+[RTSP_STATUS_SESSION]                ="Session Not Found",
+[RTSP_STATUS_STATE]                  ="Method Not Valid in This State",
+[RTSP_STATUS_INVALID_HEADER_FIELD]   ="Header Field Not Valid for Resource",
+[RTSP_STATUS_INVALID_RANGE]          ="Invalid Range",
+[RTSP_STATUS_RONLY_PARAMETER]        ="Parameter Is Read-Only",
+[RTSP_STATUS_AGGREGATE]              ="Aggregate Operation no Allowed",
+[RTSP_STATUS_ONLY_AGGREGATE]         ="Only Aggregate Operation Allowed",
+[RTSP_STATUS_TRANSPORT]              ="Unsupported Transport",
+[RTSP_STATUS_UNREACHABLE]            ="Destination Unreachable",
+[RTSP_STATUS_INTERNAL]               ="Internal Server Error",
+[RTSP_STATUS_NOT_IMPLEMENTED]        ="Not Implemented",
+[RTSP_STATUS_BAD_GATEWAY]            ="Bad Gateway",
+[RTSP_STATUS_SERVICE]                ="Service Unavailable",
+[RTSP_STATUS_GATEWAY_TIME_OUT]       ="Gateway Time-out",
+[RTSP_STATUS_VERSION]                ="RTSP Version not Supported",
+[RTSP_STATUS_UNSUPPORTED_OPTION]     ="Option not supported",
+};
+
+#define RTSP_STATUS_CODE2STRING(x) (\
+x >= 0 && x < FF_ARRAY_ELEMS(rtsp_status_strings) && rtsp_status_strings[x] \
+)? rtsp_status_strings[x] : NULL
+
 enum RTSPMethod {
     DESCRIBE,
     ANNOUNCE,