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author | ben <ben@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2006-06-23 21:38:28 +0000 |
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committer | ben <ben@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2006-06-23 21:38:28 +0000 |
commit | 4bb2bf6ec589003af38869f1212daff2639bbe19 (patch) | |
tree | 69735ca5163c44246598d950d0e49abb14b6eb9d /libmpdemux/librtsp | |
parent | 7afb3888583c1a27c8609e278e45edf488dd8c51 (diff) | |
download | mpv-4bb2bf6ec589003af38869f1212daff2639bbe19.tar.bz2 mpv-4bb2bf6ec589003af38869f1212daff2639bbe19.tar.xz |
moved generic rtsp related files from realrtsp to librtsp
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@18802 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpdemux/librtsp')
-rw-r--r-- | libmpdemux/librtsp/rtsp.c | 889 | ||||
-rw-r--r-- | libmpdemux/librtsp/rtsp.h | 84 | ||||
-rw-r--r-- | libmpdemux/librtsp/rtsp_session.c | 200 | ||||
-rw-r--r-- | libmpdemux/librtsp/rtsp_session.h | 39 |
4 files changed, 1212 insertions, 0 deletions
diff --git a/libmpdemux/librtsp/rtsp.c b/libmpdemux/librtsp/rtsp.c new file mode 100644 index 0000000000..27d9dd37a5 --- /dev/null +++ b/libmpdemux/librtsp/rtsp.c @@ -0,0 +1,889 @@ +/* + * This file was ported to MPlayer from xine CVS rtsp.c,v 1.9 2003/04/10 02:30:48 + */ + +/* + * Copyright (C) 2000-2002 the xine project + * + * This file is part of xine, a free video player. + * + * xine 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. + * + * xine 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 this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * + * a minimalistic implementation of rtsp protocol, + * *not* RFC 2326 compilant yet. + * + * 2006, Benjamin Zores and Vincent Mussard + * fixed a lot of RFC compliance issues. + */ + +#include <unistd.h> +#include <stdio.h> +#include <assert.h> +#include "config.h" +#ifndef HAVE_WINSOCK2 +#define closesocket close +#include <sys/socket.h> +#include <netinet/in.h> +#include <netdb.h> +#else +#include <winsock2.h> +#endif +#include <string.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> +#include <stdlib.h> +#include <time.h> +#include <sys/time.h> +#include <sys/types.h> +#include <inttypes.h> + +#include "mp_msg.h" +#include "rtsp.h" +#include "rtsp_session.h" +#include "osdep/timer.h" + +/* +#define LOG +*/ + +#define BUF_SIZE 4096 +#define HEADER_SIZE 1024 +#define MAX_FIELDS 256 + +struct rtsp_s { + + int s; + + char *host; + int port; + char *path; + char *param; + char *mrl; + char *user_agent; + + char *server; + unsigned int server_state; + uint32_t server_caps; + + unsigned int cseq; + char *session; + + char *answers[MAX_FIELDS]; /* data of last message */ + char *scheduled[MAX_FIELDS]; /* will be sent with next message */ +}; + +/* + * constants + */ + +#define RTSP_PROTOCOL_VERSION "RTSP/1.0" + +/* server states */ +#define RTSP_CONNECTED 1 +#define RTSP_INIT 2 +#define RTSP_READY 4 +#define RTSP_PLAYING 8 +#define RTSP_RECORDING 16 + +/* server capabilities */ +#define RTSP_OPTIONS 0x001 +#define RTSP_DESCRIBE 0x002 +#define RTSP_ANNOUNCE 0x004 +#define RTSP_SETUP 0x008 +#define RTSP_GET_PARAMETER 0x010 +#define RTSP_SET_PARAMETER 0x020 +#define RTSP_TEARDOWN 0x040 +#define RTSP_PLAY 0x080 +#define RTSP_RECORD 0x100 + +/* + * network utilities + */ + +static int host_connect_attempt(struct in_addr ia, int port) { + + int s; + struct sockaddr_in sin; + + s = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP); + if (s == -1) { + mp_msg(MSGT_OPEN, MSGL_ERR, "rtsp: socket(): %s\n", strerror(errno)); + return -1; + } + + sin.sin_family = AF_INET; + sin.sin_addr = ia; + sin.sin_port = htons(port); + + if (connect(s, (struct sockaddr *)&sin, sizeof(sin))==-1 +#ifndef HAVE_WINSOCK2 + && errno != EINPROGRESS) { +#else + && WSAGetLastError() == WSAEINPROGRESS) { +#endif + mp_msg(MSGT_OPEN, MSGL_ERR, "rtsp: connect(): %s\n", strerror(errno)); + closesocket(s); + return -1; + } + + return s; +} + +static int host_connect(const char *host, int port) { + + struct hostent *h; + int i, s; + + h = gethostbyname(host); + if (h == NULL) { + mp_msg(MSGT_OPEN, MSGL_ERR, "rtsp: unable to resolve '%s'.\n", host); + return -1; + } + + for (i = 0; h->h_addr_list[i]; i++) { + struct in_addr ia; + + memcpy (&ia, h->h_addr_list[i], 4); + s = host_connect_attempt(ia, port); + if(s != -1) + return s; + } + mp_msg(MSGT_OPEN, MSGL_ERR, "rtsp: unable to connect to '%s'.\n", host); + return -1; +} + +static int write_stream(int s, const char *buf, int len) { + int total, timeout; + + total = 0; timeout = 30; + while (total < len){ + int n; + + n = send (s, &buf[total], len - total, 0); + + if (n > 0) + total += n; + else if (n < 0) { +#ifndef HAVE_WINSOCK2 + if ((timeout>0) && ((errno == EAGAIN) || (errno == EINPROGRESS))) { +#else + if ((timeout>0) && ((errno == EAGAIN) || (WSAGetLastError() == WSAEINPROGRESS))) { +#endif + usec_sleep (1000000); timeout--; + } else + return -1; + } + } + + return total; +} + +static ssize_t read_stream(int fd, void *buf, size_t count) { + + ssize_t ret, total; + + total = 0; + + while (total < count) { + + ret=recv (fd, ((uint8_t*)buf)+total, count-total, 0); + + if (ret<0) { + if(errno == EAGAIN) { + fd_set rset; + struct timeval timeout; + + FD_ZERO (&rset); + FD_SET (fd, &rset); + + timeout.tv_sec = 30; + timeout.tv_usec = 0; + + if (select (fd+1, &rset, NULL, NULL, &timeout) <= 0) { + return -1; + } + continue; + } + + mp_msg(MSGT_OPEN, MSGL_ERR, "rtsp: read error.\n"); + return ret; + } else + total += ret; + + /* end of stream */ + if (!ret) break; + } + + return total; +} + +/* + * debugging utilities + */ +#if 0 +static void hexdump (char *buf, int length) { + + int i; + + mp_msg(MSGT_OPEN, MSGL_INFO, "rtsp: ascii>"); + for (i = 0; i < length; i++) { + unsigned char c = buf[i]; + + if ((c >= 32) && (c <= 128)) + mp_msg(MSGT_OPEN, MSGL_INFO, "%c", c); + else + mp_msg(MSGT_OPEN, MSGL_INFO, "."); + } + mp_msg(MSGT_OPEN, MSGL_INFO, "\n"); + + mp_msg(MSGT_OPEN, MSGL_INFO, "rtsp: hexdump> "); + for (i = 0; i < length; i++) { + unsigned char c = buf[i]; + + mp_msg(MSGT_OPEN, MSGL_INFO, "%02x", c); + + if ((i % 16) == 15) + mp_msg(MSGT_OPEN, MSGL_INFO, "\nrtsp: "); + + if ((i % 2) == 1) + mp_msg(MSGT_OPEN, MSGL_INFO, " "); + + } + mp_msg(MSGT_OPEN, MSGL_INFO, "\n"); +} +#endif + +/* + * rtsp_get gets a line from stream + * and returns a null terminated string. + */ + +static char *rtsp_get(rtsp_t *s) { + + int n=1; + char *buffer = malloc(BUF_SIZE); + char *string = NULL; + + read_stream(s->s, buffer, 1); + while (n<BUF_SIZE) { + read_stream(s->s, &(buffer[n]), 1); + if ((buffer[n-1]==0x0d)&&(buffer[n]==0x0a)) break; + n++; + } + + if (n>=BUF_SIZE) { + mp_msg(MSGT_OPEN, MSGL_FATAL, "librtsp: buffer overflow in rtsp_get\n"); + exit(1); + } + string=malloc(sizeof(char)*n); + memcpy(string,buffer,n-1); + string[n-1]=0; + +#ifdef LOG + mp_msg(MSGT_OPEN, MSGL_INFO, "librtsp: << '%s'\n", string); +#endif + + + free(buffer); + return string; +} + +/* + * rtsp_put puts a line on stream + */ + +static void rtsp_put(rtsp_t *s, const char *string) { + + int len=strlen(string); + char *buf=malloc(sizeof(char)*len+2); + +#ifdef LOG + mp_msg(MSGT_OPEN, MSGL_INFO, "librtsp: >> '%s'", string); +#endif + + memcpy(buf,string,len); + buf[len]=0x0d; + buf[len+1]=0x0a; + + write_stream(s->s, buf, len+2); + +#ifdef LOG + mp_msg(MSGT_OPEN, MSGL_INFO, " done.\n"); +#endif + + free(buf); +} + +/* + * extract server status code + */ + +static int rtsp_get_code(const char *string) { + + char buf[4]; + int code=0; + + if (!strncmp(string, RTSP_PROTOCOL_VERSION, strlen(RTSP_PROTOCOL_VERSION))) + { + memcpy(buf, string+strlen(RTSP_PROTOCOL_VERSION)+1, 3); + buf[3]=0; + code=atoi(buf); + } else if (!strncmp(string, RTSP_METHOD_SET_PARAMETER,8)) + { + return RTSP_STATUS_SET_PARAMETER; + } + + if(code != RTSP_STATUS_OK) mp_msg(MSGT_OPEN, MSGL_INFO, "librtsp: server responds: '%s'\n",string); + + return code; +} + +/* + * send a request + */ + +static void rtsp_send_request(rtsp_t *s, const char *type, const char *what) { + + char **payload=s->scheduled; + char *buf; + + buf = malloc(strlen(type)+strlen(what)+strlen(RTSP_PROTOCOL_VERSION)+3); + + sprintf(buf,"%s %s %s",type, what, RTSP_PROTOCOL_VERSION); + rtsp_put(s,buf); + free(buf); + if (payload) + while (*payload) { + rtsp_put(s,*payload); + payload++; + } + rtsp_put(s,""); + rtsp_unschedule_all(s); +} + +/* + * schedule standard fields + */ + +static void rtsp_schedule_standard(rtsp_t *s) { + + char tmp[16]; + + snprintf(tmp, 16, "CSeq: %u", s->cseq); + rtsp_schedule_field(s, tmp); + + if (s->session) { + char *buf; + buf = malloc(strlen(s->session)+15); + sprintf(buf, "Session: %s", s->session); + rtsp_schedule_field(s, buf); + free(buf); + } +} +/* + * get the answers, if server responses with something != 200, return NULL + */ + +static int rtsp_get_answers(rtsp_t *s) { + + char *answer=NULL; + unsigned int answer_seq; + char **answer_ptr=s->answers; + int code; + int ans_count = 0; + + answer=rtsp_get(s); + if (!answer) + return 0; + code=rtsp_get_code(answer); + free(answer); + + rtsp_free_answers(s); + + do { /* while we get answer lines */ + + answer=rtsp_get(s); + if (!answer) + return 0; + + if (!strncmp(answer,"CSeq:",5)) { + sscanf(answer,"CSeq: %u",&answer_seq); + if (s->cseq != answer_seq) { +#ifdef LOG + mp_msg(MSGT_OPEN, MSGL_WARN, "librtsp: warning: CSeq mismatch. got %u, assumed %u", answer_seq, s->cseq); +#endif + s->cseq=answer_seq; + } + } + if (!strncmp(answer,"Server:",7)) { + char *buf = malloc(strlen(answer)); + sscanf(answer,"Server: %s",buf); + if (s->server) free(s->server); + s->server=strdup(buf); + free(buf); + } + if (!strncmp(answer,"Session:",8)) { + char *buf = calloc(1, strlen(answer)); + sscanf(answer,"Session: %s",buf); + if (s->session) { + if (strcmp(buf, s->session)) { + mp_msg(MSGT_OPEN, MSGL_WARN, "rtsp: warning: setting NEW session: %s\n", buf); + free(s->session); + s->session=strdup(buf); + } + } else + { +#ifdef LOG + mp_msg(MSGT_OPEN, MSGL_INFO, "rtsp: setting session id to: %s\n", buf); +#endif + s->session=strdup(buf); + } + free(buf); + } + *answer_ptr=answer; + answer_ptr++; + } while ((strlen(answer)!=0) && (++ans_count < MAX_FIELDS)); + + s->cseq++; + + *answer_ptr=NULL; + rtsp_schedule_standard(s); + + return code; +} + +/* + * send an ok message + */ + +int rtsp_send_ok(rtsp_t *s) { + char cseq[16]; + + rtsp_put(s, "RTSP/1.0 200 OK"); + sprintf(cseq,"CSeq: %u", s->cseq); + rtsp_put(s, cseq); + rtsp_put(s, ""); + return 0; +} + +/* + * implementation of must-have rtsp requests; functions return + * server status code. + */ + +int rtsp_request_options(rtsp_t *s, const char *what) { + + char *buf; + + if (what) { + buf=strdup(what); + } else + { + buf=malloc(sizeof(char)*(strlen(s->host)+16)); + sprintf(buf,"rtsp://%s:%i", s->host, s->port); + } + rtsp_send_request(s,RTSP_METHOD_OPTIONS,buf); + free(buf); + + return rtsp_get_answers(s); +} + +int rtsp_request_describe(rtsp_t *s, const char *what) { + + char *buf; + + if (what) { + buf=strdup(what); + } else + { + buf=malloc(sizeof(char)*(strlen(s->host)+strlen(s->path)+16)); + sprintf(buf,"rtsp://%s:%i/%s", s->host, s->port, s->path); + } + rtsp_send_request(s,RTSP_METHOD_DESCRIBE,buf); + free(buf); + + return rtsp_get_answers(s); +} + +int rtsp_request_setup(rtsp_t *s, const char *what, char *control) { + + char *buf = NULL; + + if (what) + buf = strdup (what); + else + { + int len = strlen (s->host) + strlen (s->path) + 16; + if (control) + len += strlen (control) + 1; + + buf = malloc (len); + sprintf (buf, "rtsp://%s:%i/%s%s%s", s->host, s->port, s->path, + control ? "/" : "", control ? control : ""); + } + + rtsp_send_request (s, RTSP_METHOD_SETUP, buf); + free (buf); + return rtsp_get_answers (s); +} + +int rtsp_request_setparameter(rtsp_t *s, const char *what) { + + char *buf; + + if (what) { + buf=strdup(what); + } else + { + buf=malloc(sizeof(char)*(strlen(s->host)+strlen(s->path)+16)); + sprintf(buf,"rtsp://%s:%i/%s", s->host, s->port, s->path); + } + rtsp_send_request(s,RTSP_METHOD_SET_PARAMETER,buf); + free(buf); + + return rtsp_get_answers(s); +} + +int rtsp_request_play(rtsp_t *s, const char *what) { + + char *buf; + int ret; + + if (what) { + buf=strdup(what); + } else + { + buf=malloc(sizeof(char)*(strlen(s->host)+strlen(s->path)+16)); + sprintf(buf,"rtsp://%s:%i/%s", s->host, s->port, s->path); + } + rtsp_send_request(s,RTSP_METHOD_PLAY,buf); + free(buf); + + ret = rtsp_get_answers (s); + if (ret == RTSP_STATUS_OK) + s->server_state = RTSP_PLAYING; + + return ret; +} + +int rtsp_request_teardown(rtsp_t *s, const char *what) { + + char *buf; + + if (what) + buf = strdup (what); + else + { + buf = + malloc (strlen (s->host) + strlen (s->path) + 16); + sprintf (buf, "rtsp://%s:%i/%s", s->host, s->port, s->path); + } + rtsp_send_request (s, RTSP_METHOD_TEARDOWN, buf); + free (buf); + + return rtsp_get_answers(s); +} + +/* + * read opaque data from stream + */ + +int rtsp_read_data(rtsp_t *s, char *buffer, unsigned int size) { + + int i,seq; + + if (size>=4) { + i=read_stream(s->s, buffer, 4); + if (i<4) return i; + if (((buffer[0]=='S')&&(buffer[1]=='E')&&(buffer[2]=='T')&&(buffer[3]=='_')) || + ((buffer[0]=='O')&&(buffer[1]=='P')&&(buffer[2]=='T')&&(buffer[3]=='I'))) // OPTIONS + { + char *rest=rtsp_get(s); + if (!rest) + return -1; + + seq=-1; + do { + free(rest); + rest=rtsp_get(s); + if (!rest) + return -1; + if (!strncmp(rest,"CSeq:",5)) + sscanf(rest,"CSeq: %u",&seq); + } while (strlen(rest)!=0); + free(rest); + if (seq<0) { +#ifdef LOG + mp_msg(MSGT_OPEN, MSGL_WARN, "rtsp: warning: CSeq not recognized!\n"); +#endif + seq=1; + } + /* let's make the server happy */ + rtsp_put(s, "RTSP/1.0 451 Parameter Not Understood"); + rest=malloc(sizeof(char)*16); + sprintf(rest,"CSeq: %u", seq); + rtsp_put(s, rest); + rtsp_put(s, ""); + i=read_stream(s->s, buffer, size); + } else + { + i=read_stream(s->s, buffer+4, size-4); + i+=4; + } + } else + i=read_stream(s->s, buffer, size); +#ifdef LOG + mp_msg(MSGT_OPEN, MSGL_INFO, "librtsp: << %d of %d bytes\n", i, size); +#endif + + return i; +} + +/* + * connect to a rtsp server + */ + +//rtsp_t *rtsp_connect(const char *mrl, const char *user_agent) { +rtsp_t *rtsp_connect(int fd, char* mrl, char *path, char *host, int port, char *user_agent) { + + rtsp_t *s=malloc(sizeof(rtsp_t)); + int i; + + for (i=0; i<MAX_FIELDS; i++) { + s->answers[i]=NULL; + s->scheduled[i]=NULL; + } + + s->server=NULL; + s->server_state=0; + s->server_caps=0; + + s->cseq=0; + s->session=NULL; + + if (user_agent) + s->user_agent=strdup(user_agent); + else + s->user_agent=strdup("User-Agent: RealMedia Player Version 6.0.9.1235 (linux-2.0-libc6-i386-gcc2.95)"); + + s->mrl = strdup(mrl); + s->host = strdup(host); + s->port = port; + s->path = strdup(path); + while (*path == '/') + path++; + if ((s->param = strchr(s->path, '?')) != NULL) + s->param++; + //mp_msg(MSGT_OPEN, MSGL_INFO, "path=%s\n", s->path); + //mp_msg(MSGT_OPEN, MSGL_INFO, "param=%s\n", s->param ? s->param : "NULL"); + s->s = fd; + + if (s->s < 0) { + mp_msg(MSGT_OPEN, MSGL_ERR, "rtsp: failed to connect to '%s'\n", s->host); + rtsp_close(s); + return NULL; + } + + s->server_state=RTSP_CONNECTED; + + /* now let's send an options request. */ + rtsp_schedule_field(s, "CSeq: 1"); + rtsp_schedule_field(s, s->user_agent); + rtsp_schedule_field(s, "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7"); + rtsp_schedule_field(s, "PlayerStarttime: [28/03/2003:22:50:23 00:00]"); + rtsp_schedule_field(s, "CompanyID: KnKV4M4I/B2FjJ1TToLycw=="); + rtsp_schedule_field(s, "GUID: 00000000-0000-0000-0000-000000000000"); + rtsp_schedule_field(s, "RegionData: 0"); + rtsp_schedule_field(s, "ClientID: Linux_2.4_6.0.9.1235_play32_RN01_EN_586"); + /*rtsp_schedule_field(s, "Pragma: initiate-session");*/ + rtsp_request_options(s, NULL); + + return s; +} + + +/* + * closes an rtsp connection + */ + +void rtsp_close(rtsp_t *s) { + + if (s->server_state) + { + if (s->server_state == RTSP_PLAYING) + rtsp_request_teardown (s, NULL); + closesocket (s->s); + } + + if (s->path) free(s->path); + if (s->host) free(s->host); + if (s->mrl) free(s->mrl); + if (s->session) free(s->session); + if (s->user_agent) free(s->user_agent); + rtsp_free_answers(s); + rtsp_unschedule_all(s); + free(s); +} + +/* + * search in answers for tags. returns a pointer to the content + * after the first matched tag. returns NULL if no match found. + */ + +char *rtsp_search_answers(rtsp_t *s, const char *tag) { + + char **answer; + char *ptr; + + if (!s->answers) return NULL; + answer=s->answers; + + while (*answer) { + if (!strncasecmp(*answer,tag,strlen(tag))) { + ptr=strchr(*answer,':'); + if (!ptr) return NULL; + ptr++; + while(*ptr==' ') ptr++; + return ptr; + } + answer++; + } + + return NULL; +} + +/* + * session id management + */ + +void rtsp_set_session(rtsp_t *s, const char *id) { + + if (s->session) free(s->session); + + s->session=strdup(id); + +} + +char *rtsp_get_session(rtsp_t *s) { + + return s->session; + +} + +char *rtsp_get_mrl(rtsp_t *s) { + + return s->mrl; + +} + +char *rtsp_get_param(rtsp_t *s, char *p) { + int len; + char *param; + if (!s->param) + return NULL; + if (!p) + return strdup(s->param); + len = strlen(p); + param = s->param; + while (param && *param) { + char *nparam = strchr(param, '&'); + if (strncmp(param, p, len) == 0 && param[len] == '=') { + param += len + 1; + len = nparam ? nparam - param : strlen(param); + nparam = malloc(len + 1); + memcpy(nparam, param, len); + nparam[len] = 0; + return nparam; + } + param = nparam ? nparam + 1 : NULL; + } + return NULL; +} + +/* + * schedules a field for transmission + */ + +void rtsp_schedule_field(rtsp_t *s, const char *string) { + + int i=0; + + if (!string) return; + + while(s->scheduled[i]) { + i++; + } + s->scheduled[i]=strdup(string); +} + +/* + * removes the first scheduled field which prefix matches string. + */ + +void rtsp_unschedule_field(rtsp_t *s, const char *string) { + + char **ptr=s->scheduled; + + if (!string) return; + + while(*ptr) { + if (!strncmp(*ptr, string, strlen(string))) + break; + else + ptr++; + } + if (*ptr) free(*ptr); + ptr++; + do { + *(ptr-1)=*ptr; + } while(*ptr); +} + +/* + * unschedule all fields + */ + +void rtsp_unschedule_all(rtsp_t *s) { + + char **ptr; + + if (!s->scheduled) return; + ptr=s->scheduled; + + while (*ptr) { + free(*ptr); + *ptr=NULL; + ptr++; + } +} +/* + * free answers + */ + +void rtsp_free_answers(rtsp_t *s) { + + char **answer; + + if (!s->answers) return; + answer=s->answers; + + while (*answer) { + free(*answer); + *answer=NULL; + answer++; + } +} diff --git a/libmpdemux/librtsp/rtsp.h b/libmpdemux/librtsp/rtsp.h new file mode 100644 index 0000000000..624c116bcb --- /dev/null +++ b/libmpdemux/librtsp/rtsp.h @@ -0,0 +1,84 @@ +/* + * This file was ported to MPlayer from xine CVS rtsp.h,v 1.2 2002/12/16 21:50:55 + */ + +/* + * Copyright (C) 2002 the xine project + * + * This file is part of xine, a free video player. + * + * xine 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. + * + * xine 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 this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * + * a minimalistic implementation of rtsp protocol, + * *not* RFC 2326 compilant yet. + * + * 2006, Benjamin Zores and Vincent Mussard + * fixed a lot of RFC compliance issues. + */ + +#ifndef HAVE_RTSP_H +#define HAVE_RTSP_H + + +/* some codes returned by rtsp_request_* functions */ + +#define RTSP_STATUS_SET_PARAMETER 10 +#define RTSP_STATUS_OK 200 + +#define RTSP_METHOD_OPTIONS "OPTIONS" +#define RTSP_METHOD_DESCRIBE "DESCRIBE" +#define RTSP_METHOD_SETUP "SETUP" +#define RTSP_METHOD_PLAY "PLAY" +#define RTSP_METHOD_TEARDOWN "TEARDOWN" +#define RTSP_METHOD_SET_PARAMETER "SET_PARAMETER" + +typedef struct rtsp_s rtsp_t; + +rtsp_t* rtsp_connect (int fd, char *mrl, char *path, char *host, int port, char *user_agent); + +int rtsp_request_options(rtsp_t *s, const char *what); +int rtsp_request_describe(rtsp_t *s, const char *what); +int rtsp_request_setup(rtsp_t *s, const char *what, char *control); +int rtsp_request_setparameter(rtsp_t *s, const char *what); +int rtsp_request_play(rtsp_t *s, const char *what); +int rtsp_request_teardown(rtsp_t *s, const char *what); + +int rtsp_send_ok(rtsp_t *s); + +int rtsp_read_data(rtsp_t *s, char *buffer, unsigned int size); + +char* rtsp_search_answers(rtsp_t *s, const char *tag); +void rtsp_add_to_payload(char **payload, const char *string); + +void rtsp_free_answers(rtsp_t *this); + +int rtsp_read (rtsp_t *this, char *data, int len); +void rtsp_close (rtsp_t *this); + +void rtsp_set_session(rtsp_t *s, const char *id); +char *rtsp_get_session(rtsp_t *s); + +char *rtsp_get_mrl(rtsp_t *s); +char *rtsp_get_param(rtsp_t *s, char *param); + +/*int rtsp_peek_header (rtsp_t *this, char *data); */ + +void rtsp_schedule_field(rtsp_t *s, const char *string); +void rtsp_unschedule_field(rtsp_t *s, const char *string); +void rtsp_unschedule_all(rtsp_t *s); + +#endif + diff --git a/libmpdemux/librtsp/rtsp_session.c b/libmpdemux/librtsp/rtsp_session.c new file mode 100644 index 0000000000..1297014aba --- /dev/null +++ b/libmpdemux/librtsp/rtsp_session.c @@ -0,0 +1,200 @@ +/* + * This file was ported to MPlayer from xine CVS rtsp_session.c,v 1.9 2003/02/11 16:20:40 + */ + +/* + * Copyright (C) 2000-2002 the xine project + * + * This file is part of xine, a free video player. + * + * xine 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. + * + * xine 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 this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + * + * + * high level interface to rtsp servers. + */ + +#include <sys/types.h> +#include "config.h" +#ifndef HAVE_WINSOCK2 +#include <sys/socket.h> +#include <netinet/in.h> +#include <netdb.h> +#else +#include <winsock2.h> +#endif +#include <unistd.h> +#include <stdio.h> +#include <fcntl.h> +#include <stdlib.h> +#include <string.h> +#include <inttypes.h> + +#include "mp_msg.h" +#include "rtsp.h" +#include "rtsp_session.h" +#include "../realrtsp/real.h" +#include "../realrtsp/rmff.h" +#include "../realrtsp/asmrp.h" +#include "../realrtsp/xbuffer.h" + +/* +#define LOG +*/ + +struct rtsp_session_s { + rtsp_t *s; + struct real_rtsp_session_t* real_session; +}; + +//rtsp_session_t *rtsp_session_start(char *mrl) { +rtsp_session_t *rtsp_session_start(int fd, char **mrl, char *path, char *host, int port, int *redir, uint32_t bandwidth) { + + rtsp_session_t *rtsp_session = NULL; + char *server; + char *mrl_line = NULL; + rmff_header_t *h; + + rtsp_session = malloc (sizeof (rtsp_session_t)); + rtsp_session->s = NULL; + rtsp_session->real_session = NULL; + +//connect: + *redir = 0; + + /* connect to server */ + rtsp_session->s=rtsp_connect(fd,*mrl,path,host,port,NULL); + if (!rtsp_session->s) + { + mp_msg (MSGT_OPEN, MSGL_ERR,"rtsp_session: failed to connect to server %s\n", path); + free(rtsp_session); + return NULL; + } + + /* looking for server type */ + if (rtsp_search_answers(rtsp_session->s,"Server")) + server=strdup(rtsp_search_answers(rtsp_session->s,"Server")); + else { + if (rtsp_search_answers(rtsp_session->s,"RealChallenge1")) + server=strdup("Real"); + else + server=strdup("unknown"); + } + if (strstr(server,"Real") || strstr(server,"Helix")) + { + /* we are talking to a real server ... */ + + h=real_setup_and_get_header(rtsp_session->s, bandwidth); + if (!h) { + /* got an redirect? */ + if (rtsp_search_answers(rtsp_session->s, "Location")) + { + free(mrl_line); + mrl_line=strdup(rtsp_search_answers(rtsp_session->s, "Location")); + mp_msg (MSGT_OPEN, MSGL_INFO,"rtsp_session: redirected to %s\n", mrl_line); + rtsp_close(rtsp_session->s); + free(server); + free(*mrl); + free(rtsp_session); + /* tell the caller to redirect, return url to redirect to in mrl */ + *mrl = mrl_line; + *redir = 1; + return NULL; +// goto connect; /* *shudder* i made a design mistake somewhere */ + } else + { + mp_msg (MSGT_OPEN, MSGL_ERR,"rtsp_session: session can not be established.\n"); + rtsp_close(rtsp_session->s); + free (server); + free(rtsp_session); + return NULL; + } + } + + rtsp_session->real_session = init_real_rtsp_session (); + rtsp_session->real_session->header_len = + rmff_dump_header (h, (char *) rtsp_session->real_session->header, 1024); + + rtsp_session->real_session->recv = + xbuffer_copyin (rtsp_session->real_session->recv, 0, + rtsp_session->real_session->header, + rtsp_session->real_session->header_len); + + rtsp_session->real_session->recv_size = + rtsp_session->real_session->header_len; + rtsp_session->real_session->recv_read = 0; + } else + { + mp_msg (MSGT_OPEN, MSGL_ERR,"rtsp_session: Not a Real server. Server type is '%s'.\n",server); + rtsp_close(rtsp_session->s); + free(server); + free(rtsp_session); + return NULL; + } + free(server); + + return rtsp_session; +} + +int rtsp_session_read (rtsp_session_t *this, char *data, int len) { + + if (this->real_session) { + int to_copy=len; + char *dest=data; + char *source = + (char *) (this->real_session->recv + this->real_session->recv_read); + int fill = this->real_session->recv_size - this->real_session->recv_read; + + if (len < 0) return 0; + while (to_copy > fill) { + + memcpy(dest, source, fill); + to_copy -= fill; + dest += fill; + this->real_session->recv_read = 0; + this->real_session->recv_size = + real_get_rdt_chunk (this->s, (char **)&(this->real_session->recv)); + if (this->real_session->recv_size < 0) + return -1; + source = (char *) this->real_session->recv; + fill = this->real_session->recv_size; + + if (this->real_session->recv_size == 0) { +#ifdef LOG + mp_msg (MSGT_OPEN, MSGL_INFO, "librtsp: %d of %d bytes provided\n", len-to_copy, len); +#endif + return len-to_copy; + } + } + + memcpy(dest, source, to_copy); + this->real_session->recv_read += to_copy; + +#ifdef LOG + mp_msg (MSGT_OPEN, MSGL_INFO, "librtsp: %d bytes provided\n", len); +#endif + + return len; + } + + return 0; +} + +void rtsp_session_end(rtsp_session_t *session) { + + rtsp_close(session->s); + if (session->real_session) + free_real_rtsp_session (sess |