utils.h

来自「目前的流媒体服务器代码有Darwin(苹果公司）」· C头文件 代码 · 共 165 行

/* * 
 *  $Id$
 *  
 *  This file is part of Fenice
 *
 *  Fenice -- Open Media Server
 *
 *  Copyright (C) 2007 by
 *      
 *    - Giampaolo Mancini    <[e-mail]>
 *    - Francesco Varano    <[e-mail]>
 *    - Marco Penno        <[e-mail]>
 *    - Federico Ridolfo    <[e-mail]>
 *    - Eugenio Menegatti     <[e-mail]>
 *    - Stefano Cau
 *    - Giuliano Emma
 *    - Stefano Oldrini
 * 
 *  Fenice is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Fenice is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Fenice; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *  
 * */

#ifndef _UTILSH
#define _UTILSH
#include <time.h>
#include <ctype.h>
#include <sys/types.h>
#include <math.h>
#include <fenice/types.h>
#include <string.h>

//XXX should me moved somewhere else
#ifdef WIN32
#define strncasecmp(s1,s2,len)  _strnicmp(s1,s2,len)
#define strcasecmp(s1,s2)       _stricmp(s1,s2)
#define open(a, b)   _open(a, b)
#define read(a,b,c)  _read(a,b,c)
#define lseek(a,b,c) _lseek(a,b,c)
#define close(a)     _close(a)
#endif

/*! autodescriptive error values */
#define ERR_NOERROR              0
#define ERR_GENERIC             -1
#define ERR_NOT_FOUND           -2
#define ERR_PARSE               -3
#define ERR_ALLOC               -4
#define ERR_INPUT_PARAM         -5
#define ERR_NOT_SD              -6  // XXX check it
#define ERR_UNSUPPORTED_PT      -7  /// Unsupported Payload Type
#define ERR_EOF                 -8
#define ERR_FATAL               -9
#define ERR_CONNECTION_CLOSE    -10

/*! message header keywords see rfc2326 and rfc2068 */

#define HDR_CONTENTLENGTH       "Content-Length"
#define HDR_ACCEPT              "Accept"
#define HDR_ALLOW               "Allow"
#define HDR_BLOCKSIZE           "Blocksize"
#define HDR_CONTENTTYPE         "Content-Type"
#define HDR_DATE                "Date"
#define HDR_REQUIRE             "Require"
#define HDR_TRANSPORTREQUIRE    "Transport-Require"
#define HDR_SEQUENCENO          "SequenceNo"
#define HDR_CSEQ                "CSeq"
#define HDR_STREAM              "Stream"
#define HDR_SESSION             "Session"
#define HDR_TRANSPORT           "Transport"
#define HDR_RANGE               "Range"
#define HDR_USER_AGENT          "User-Agent"

/*! rtsp methods */
#define RTSP_METHOD_MAXLEN 15
#define RTSP_METHOD_DESCRIBE        "DESCRIBE"
#define RTSP_METHOD_ANNOUNCE        "ANNOUNCE"
#define RTSP_METHOD_GET_PARAMETERS  "GET_PARAMETERS"
#define RTSP_METHOD_OPTIONS         "OPTIONS"
#define RTSP_METHOD_PAUSE           "PAUSE"
#define RTSP_METHOD_PLAY            "PLAY"
#define RTSP_METHOD_RECORD          "RECORD"
#define RTSP_METHOD_REDIRECT        "REDIRECT"
#define RTSP_METHOD_SETUP           "SETUP"
#define RTSP_METHOD_SET_PARAMETER   "SET_PARAMETER"
#define RTSP_METHOD_TEARDOWN        "TEARDOWN"
/*! rtsp method tokens */
#define RTSP_ID_DESCRIBE 0
#define RTSP_ID_ANNOUNCE 1
#define RTSP_ID_GET_PARAMETERS 2
#define RTSP_ID_OPTIONS 3
#define RTSP_ID_PAUSE 4
#define RTSP_ID_PLAY 5
#define RTSP_ID_RECORD 6
#define RTSP_ID_REDIRECT 7
#define RTSP_ID_SETUP 8
#define RTSP_ID_SET_PARAMETER 9
#define RTSP_ID_TEARDOWN 10


//XXX move them in a separate header?
/*! SD common tags */
#define SD_STREAM           "STREAM"
#define SD_STREAM_END       "STREAM_END"
#define SD_FILENAME         "FILE_NAME"
#define SD_CLOCK_RATE       "CLOCK_RATE"
#define SD_PAYLOAD_TYPE     "PAYLOAD_TYPE"
#define SD_AUDIO_CHANNELS   "AUDIO_CHANNELS"
#define SD_ENCODING_NAME    "ENCODING_NAME"
#define SD_MEDIA_TYPE       "MEDIA_TYPE"
#define SD_BIT_PER_SAMPLE   "BIT_PER_SAMPLE"
#define SD_SAMPLE_RATE      "SAMPLE_RATE"
#define SD_CODING_TYPE      "CODING_TYPE"
#define SD_FRAME_LEN        "FRAME_LEN"
#define SD_PKT_LEN          "PKT_LEN"
#define SD_PRIORITY         "PRIORITY"
#define SD_BITRATE          "BITRATE"
#define SD_FRAME_RATE       "FRAME_RATE"
#define SD_FORCE_FRAME_RATE "FORCE_FRAME_RATE"
#define SD_BYTE_PER_PCKT    "BYTE_PER_PCKT"
#define SD_MEDIA_SOURCE     "MEDIA_SOURCE"
#define SD_TWIN             "TWIN"
#define SD_MULTICAST        "MULTICAST"
/*! Creative commons specific tags */
#define SD_LICENSE "LICENSE"
#define SD_RDF "VERIFY"
#define SD_TITLE "TITLE"
#define SD_CREATOR "CREATOR"

/*! random seed generator, as documented in rfc1889 Appendix A.6 */
uint32_t random32(int);
/*! simple hasher */
uint32_t md_32(uint8_t *string, int length);
/*! parses the urls splitting it in fields [SLATED FOR RESHAPE] */
int parse_url(const char *url, char *server, size_t, unsigned short *port,
              char *file_name, size_t);
float NTP_time(time_t t);
int get_utc(struct tm *t, char *b);
int get_field(uint8_t * d, uint32_t bits, uint32_t * offset);
void fncheader(void);

//XXX check and maybe use something saner...
#ifndef min
#define min(x,y) ((x) < (y) ? (x) : (y))
#endif
#ifndef max
#define max(x,y) ((x) > (y) ? (x) : (y))
#endif

//XXX we should use the mathlib one if available! (C99)
#define lround(x) (x - floor(x) < 0.5) ? floor(x): ceil(x)

#endif