diff options
author | Lennart Poettering <lennart@poettering.net> | 2006-04-14 23:47:33 +0000 |
---|---|---|
committer | Lennart Poettering <lennart@poettering.net> | 2006-04-14 23:47:33 +0000 |
commit | 9522b4484206ef3a99fb5586831a27fdfea0c373 (patch) | |
tree | a7c0b2fb633c51b3d170f0538df0dbac1eae4d61 /src/modules/rtp/sap.c | |
parent | 86ad60185ae90520269d384d90569d2402c25dd1 (diff) |
add an RTP sender module
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@712 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src/modules/rtp/sap.c')
-rw-r--r-- | src/modules/rtp/sap.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/modules/rtp/sap.c b/src/modules/rtp/sap.c new file mode 100644 index 00000000..ebf20bc4 --- /dev/null +++ b/src/modules/rtp/sap.c @@ -0,0 +1,107 @@ +/* $Id$ */ + +/*** + This file is part of polypaudio. + + polypaudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + polypaudio 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 Lesser General Public License + along with polypaudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <time.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <arpa/inet.h> +#include <errno.h> +#include <string.h> +#include <unistd.h> + +#include <polypcore/util.h> +#include <polypcore/log.h> +#include <polypcore/xmalloc.h> + +#include "sap.h" + +pa_sap_context* pa_sap_context_init_send(pa_sap_context *c, int fd, char *sdp_data) { + assert(c); + assert(fd >= 0); + assert(sdp_data); + + c->fd = fd; + c->sdp_data = sdp_data; + c->msg_id_hash = (uint16_t) (rand()*rand()); + + return c; +} + +void pa_sap_context_destroy(pa_sap_context *c) { + assert(c); + + close(c->fd); + pa_xfree(c->sdp_data); +} + +int pa_sap_send(pa_sap_context *c, int goodbye) { + uint32_t header; + const char mime[] = "application/sdp"; + struct sockaddr_storage sa_buf; + struct sockaddr *sa = (struct sockaddr*) &sa_buf; + socklen_t salen = sizeof(sa_buf); + struct iovec iov[4]; + struct msghdr m; + int k; + + if (getsockname(c->fd, sa, &salen) < 0) { + pa_log("getsockname() failed: %s\n", strerror(errno)); + return -1; + } + + assert(sa->sa_family == AF_INET || sa->sa_family == AF_INET6); + + header = htonl(((uint32_t) 1 << 29) | + (sa->sa_family == AF_INET6 ? (uint32_t) 1 << 28 : 0) | + (goodbye ? (uint32_t) 1 << 26 : 0) | + (c->msg_id_hash)); + + iov[0].iov_base = &header; + iov[0].iov_len = sizeof(header); + + iov[1].iov_base = sa->sa_family == AF_INET ? (void*) &((struct sockaddr_in*) sa)->sin_addr : (void*) &((struct sockaddr_in6*) sa)->sin6_addr; + iov[1].iov_len = sa->sa_family == AF_INET ? 4 : 16; + + iov[2].iov_base = (char*) mime; + iov[2].iov_len = sizeof(mime); + + iov[3].iov_base = c->sdp_data; + iov[3].iov_len = strlen(c->sdp_data); + + m.msg_name = NULL; + m.msg_namelen = 0; + m.msg_iov = iov; + m.msg_iovlen = 4; + m.msg_control = NULL; + m.msg_controllen = 0; + m.msg_flags = 0; + + if ((k = sendmsg(c->fd, &m, MSG_DONTWAIT)) < 0) + pa_log("sendmsg() failed: %s\n", strerror(errno)); + + return k; +} |