Add librtmp to obs-outputs
Note that this is a somewhat heavily modified custom version of librtmp. I modified all the platform specific code that we were using for the OBS1 to make it platform-independent. I don't really like the code in this library, but it works well enough, so I can't really fault anyone for it. It's just very.. unclean. Even for a C library, quite unclean. Some parts are also a little less safe than I'd prefer as well.
This commit is contained in:
jp9000
446
plugins/obs-outputs/librtmp/parseurl.c
Normal file
446
plugins/obs-outputs/librtmp/parseurl.c
Normal file
@@ -0,0 +1,446 @@
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/*
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* Copyright (C) 2009 Andrej Stepanchuk
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* Copyright (C) 2009-2010 Howard Chu
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*
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* This file is part of librtmp.
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*
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* librtmp is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1,
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* or (at your option) any later version.
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*
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* librtmp is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with librtmp see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/lgpl.html
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*/
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#include "rtmp_sys.h"
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#include "log.h"
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int RTMP_ParseURL(const char *url, int *protocol, AVal *host, unsigned int *port,
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AVal *playpath, AVal *app)
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{
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char *p, *end, *col, *ques, *slash;
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RTMP_Log(RTMP_LOGDEBUG, "Parsing...");
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*protocol = RTMP_PROTOCOL_RTMP;
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*port = 0;
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playpath->av_len = 0;
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playpath->av_val = NULL;
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app->av_len = 0;
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app->av_val = NULL;
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/* Old School Parsing */
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/* look for usual :// pattern */
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p = strstr(url, "://");
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if(!p)
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{
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RTMP_Log(RTMP_LOGERROR, "RTMP URL: No :// in url!");
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return FALSE;
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}
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{
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int len = (int)(p-url);
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if(len == 4 && strncasecmp(url, "rtmp", 4)==0)
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*protocol = RTMP_PROTOCOL_RTMP;
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else if(len == 5 && strncasecmp(url, "rtmpt", 5)==0)
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*protocol = RTMP_PROTOCOL_RTMPT;
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else if(len == 5 && strncasecmp(url, "rtmps", 5)==0)
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*protocol = RTMP_PROTOCOL_RTMPS;
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else if(len == 5 && strncasecmp(url, "rtmpe", 5)==0)
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*protocol = RTMP_PROTOCOL_RTMPE;
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else if(len == 5 && strncasecmp(url, "rtmfp", 5)==0)
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*protocol = RTMP_PROTOCOL_RTMFP;
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else if(len == 6 && strncasecmp(url, "rtmpte", 6)==0)
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*protocol = RTMP_PROTOCOL_RTMPTE;
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else if(len == 6 && strncasecmp(url, "rtmpts", 6)==0)
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*protocol = RTMP_PROTOCOL_RTMPTS;
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else
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{
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RTMP_Log(RTMP_LOGWARNING, "Unknown protocol!\n");
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goto parsehost;
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}
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}
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RTMP_Log(RTMP_LOGDEBUG, "Parsed protocol: %d", *protocol);
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parsehost:
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/* let's get the hostname */
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p+=3;
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/* check for sudden death */
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if(*p==0)
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{
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RTMP_Log(RTMP_LOGWARNING, "No hostname in URL!");
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return FALSE;
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}
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end = p + strlen(p);
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col = strchr(p, ':');
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ques = strchr(p, '?');
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slash = strchr(p, '/');
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{
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int hostlen;
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if(slash)
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hostlen = slash - p;
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else
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hostlen = end - p;
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if(col && col -p < hostlen)
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hostlen = col - p;
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if(hostlen < 256)
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{
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host->av_val = p;
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host->av_len = hostlen;
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RTMP_Log(RTMP_LOGDEBUG, "Parsed host : %.*s", hostlen, host->av_val);
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}
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else
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{
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RTMP_Log(RTMP_LOGWARNING, "Hostname exceeds 255 characters!");
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}
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p+=hostlen;
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}
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/* get the port number if available */
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if(*p == ':')
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{
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unsigned int p2;
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p++;
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p2 = atoi(p);
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if(p2 > 65535)
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{
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RTMP_Log(RTMP_LOGWARNING, "Invalid port number!");
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}
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else
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{
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*port = p2;
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}
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}
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if(!slash)
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{
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RTMP_Log(RTMP_LOGWARNING, "No application or playpath in URL!");
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return TRUE;
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}
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p = slash+1;
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{
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/* parse application
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*
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* rtmp://host[:port]/app[/appinstance][/...]
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* application = app[/appinstance]
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*/
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char *slash2, *slash3 = NULL, *slash4 = NULL;
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int applen, appnamelen;
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slash2 = strchr(p, '/');
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if(slash2)
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slash3 = strchr(slash2+1, '/');
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if(slash3)
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slash4 = strchr(slash3+1, '/');
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applen = end-p; /* ondemand, pass all parameters as app */
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appnamelen = applen; /* ondemand length */
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if(ques && strstr(p, "slist=")) /* whatever it is, the '?' and slist= means we need to use everything as app and parse plapath from slist= */
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{
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appnamelen = ques-p;
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}
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else if(strncmp(p, "ondemand/", 9)==0)
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{
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/* app = ondemand/foobar, only pass app=ondemand */
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applen = 8;
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appnamelen = 8;
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}
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else /* app!=ondemand, so app is app[/appinstance] */
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{
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if(slash4)
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appnamelen = slash4-p;
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else if(slash3)
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appnamelen = slash3-p;
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else if(slash2)
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appnamelen = slash2-p;
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applen = appnamelen;
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}
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app->av_val = p;
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app->av_len = applen;
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RTMP_Log(RTMP_LOGDEBUG, "Parsed app : %.*s", applen, p);
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p += appnamelen;
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}
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if (*p == '/')
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p++;
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if (end-p)
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{
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AVal av = {p, end-p};
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RTMP_ParsePlaypath(&av, playpath);
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}
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return TRUE;
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}
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int RTMP_ParseURL2(const char *url, int *protocol, AVal *host, unsigned int *port,
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AVal *app)
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{
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char *p, *end, *col, *ques, *slash;
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RTMP_Log(RTMP_LOGDEBUG, "Parsing...");
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*protocol = RTMP_PROTOCOL_RTMP;
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*port = 0;
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app->av_len = 0;
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app->av_val = NULL;
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/* Old School Parsing */
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/* look for usual :// pattern */
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p = strstr(url, "://");
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if(!p)
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{
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RTMP_Log(RTMP_LOGERROR, "RTMP URL: No :// in url!");
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return FALSE;
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}
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{
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int len = (int)(p-url);
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if(len == 4 && strncasecmp(url, "rtmp", 4)==0)
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*protocol = RTMP_PROTOCOL_RTMP;
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else if(len == 5 && strncasecmp(url, "rtmpt", 5)==0)
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*protocol = RTMP_PROTOCOL_RTMPT;
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else if(len == 5 && strncasecmp(url, "rtmps", 5)==0)
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*protocol = RTMP_PROTOCOL_RTMPS;
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else if(len == 5 && strncasecmp(url, "rtmpe", 5)==0)
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*protocol = RTMP_PROTOCOL_RTMPE;
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else if(len == 5 && strncasecmp(url, "rtmfp", 5)==0)
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*protocol = RTMP_PROTOCOL_RTMFP;
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else if(len == 6 && strncasecmp(url, "rtmpte", 6)==0)
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*protocol = RTMP_PROTOCOL_RTMPTE;
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else if(len == 6 && strncasecmp(url, "rtmpts", 6)==0)
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*protocol = RTMP_PROTOCOL_RTMPTS;
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else
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{
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RTMP_Log(RTMP_LOGWARNING, "Unknown protocol!\n");
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goto parsehost;
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}
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}
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RTMP_Log(RTMP_LOGDEBUG, "Parsed protocol: %d", *protocol);
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parsehost:
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/* let's get the hostname */
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p+=3;
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/* check for sudden death */
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if(*p==0)
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{
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RTMP_Log(RTMP_LOGWARNING, "No hostname in URL!");
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return FALSE;
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}
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end = p + strlen(p);
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col = strchr(p, ':');
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ques = strchr(p, '?');
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slash = strchr(p, '/');
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{
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int hostlen;
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if(slash)
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hostlen = slash - p;
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else
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hostlen = end - p;
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if(col && col -p < hostlen)
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hostlen = col - p;
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if(hostlen < 256)
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{
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host->av_val = p;
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host->av_len = hostlen;
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RTMP_Log(RTMP_LOGDEBUG, "Parsed host : %.*s", hostlen, host->av_val);
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}
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else
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{
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RTMP_Log(RTMP_LOGWARNING, "Hostname exceeds 255 characters!");
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}
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p+=hostlen;
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}
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/* get the port number if available */
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if(*p == ':')
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{
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unsigned int p2;
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p++;
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p2 = atoi(p);
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if(p2 > 65535)
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{
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RTMP_Log(RTMP_LOGWARNING, "Invalid port number!");
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}
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else
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{
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*port = p2;
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}
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}
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if(!slash)
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{
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RTMP_Log(RTMP_LOGWARNING, "No application or playpath in URL!");
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return TRUE;
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}
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p = slash+1;
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//just.. whatever.
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app->av_val = p;
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app->av_len = (int)strlen(p);
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if(app->av_len && p[app->av_len-1] == '/')
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app->av_len--;
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RTMP_Log(RTMP_LOGDEBUG, "Parsed app : %.*s", app->av_len, p);
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p += app->av_len;
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if (*p == '/')
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p++;
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return TRUE;
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}
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/*
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* Extracts playpath from RTMP URL. playpath is the file part of the
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* URL, i.e. the part that comes after rtmp://host:port/app/
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*
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* Returns the stream name in a format understood by FMS. The name is
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* the playpath part of the URL with formatting depending on the stream
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* type:
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*
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* mp4 streams: prepend "mp4:", remove extension
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* mp3 streams: prepend "mp3:", remove extension
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* flv streams: remove extension
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*/
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void RTMP_ParsePlaypath(AVal *in, AVal *out)
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{
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int addMP4 = 0;
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int addMP3 = 0;
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int subExt = 0;
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const char *playpath = in->av_val;
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const char *temp, *q, *ext = NULL;
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const char *ppstart = playpath;
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char *streamname, *destptr, *p;
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int pplen = in->av_len;
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out->av_val = NULL;
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out->av_len = 0;
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if ((*ppstart == '?') &&
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(temp=strstr(ppstart, "slist=")) != 0)
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{
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ppstart = temp+6;
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pplen = (int)strlen(ppstart);
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temp = strchr(ppstart, '&');
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if (temp)
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{
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pplen = temp-ppstart;
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}
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}
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q = strchr(ppstart, '?');
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if (pplen >= 4)
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{
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if (q)
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ext = q-4;
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else
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ext = &ppstart[pplen-4];
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if ((strncmp(ext, ".f4v", 4) == 0) ||
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(strncmp(ext, ".mp4", 4) == 0))
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{
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addMP4 = 1;
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subExt = 1;
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/* Only remove .flv from rtmp URL, not slist params */
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}
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else if ((ppstart == playpath) &&
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(strncmp(ext, ".flv", 4) == 0))
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{
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subExt = 1;
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}
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else if (strncmp(ext, ".mp3", 4) == 0)
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{
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addMP3 = 1;
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subExt = 1;
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}
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}
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streamname = (char *)malloc((pplen+4+1)*sizeof(char));
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if (!streamname)
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return;
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destptr = streamname;
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if (addMP4)
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{
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if (strncmp(ppstart, "mp4:", 4))
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{
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strcpy(destptr, "mp4:");
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destptr += 4;
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}
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else
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{
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subExt = 0;
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}
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}
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else if (addMP3)
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{
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if (strncmp(ppstart, "mp3:", 4))
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{
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strcpy(destptr, "mp3:");
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destptr += 4;
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}
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else
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{
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subExt = 0;
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}
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}
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for (p=(char *)ppstart; pplen >0;)
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{
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/* skip extension */
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if (subExt && p == ext)
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{
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p += 4;
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pplen -= 4;
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continue;
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}
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if (*p == '%')
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{
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unsigned int c;
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sscanf(p+1, "%02x", &c);
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*destptr++ = c;
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pplen -= 3;
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p += 3;
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}
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else
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{
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*destptr++ = *p++;
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pplen--;
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}
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}
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*destptr = '\0';
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out->av_val = streamname;
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out->av_len = destptr - streamname;
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}
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Reference in New Issue
Block a user