X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftags%2Fsynfig_0_61_03%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavformat%2Frtpproto.c;fp=synfig-core%2Ftags%2Fsynfig_0_61_03%2Fsynfig-core%2Fsrc%2Fmodules%2Fmod_libavcodec%2Flibavformat%2Frtpproto.c;h=0000000000000000000000000000000000000000;hb=3a6643238c67c043fc3592837a05d6d2861967f1;hp=40c7f6a375e116631939ca34b82c4b401b850098;hpb=47fce282611fbba1044921d22ca887f9b53ad91a;p=synfig.git diff --git a/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavformat/rtpproto.c b/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavformat/rtpproto.c deleted file mode 100644 index 40c7f6a..0000000 --- a/synfig-core/tags/synfig_0_61_03/synfig-core/src/modules/mod_libavcodec/libavformat/rtpproto.c +++ /dev/null @@ -1,300 +0,0 @@ -/* - * RTP network protocol - * Copyright (c) 2002 Fabrice Bellard. - * - * This library 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. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include "avformat.h" - -#include -#include -#include -#include -#include -#ifndef __BEOS__ -# include -#else -# include "barpainet.h" -#endif -#include -#include - -#define RTP_TX_BUF_SIZE (64 * 1024) -#define RTP_RX_BUF_SIZE (128 * 1024) - -typedef struct RTPContext { - URLContext *rtp_hd, *rtcp_hd; - int rtp_fd, rtcp_fd; -} RTPContext; - -/** - * If no filename is given to av_open_input_file because you want to - * get the local port first, then you must call this function to set - * the remote server address. - * - * @param s1 media file context - * @param uri of the remote server - * @return zero if no error. - */ -int rtp_set_remote_url(URLContext *h, const char *uri) -{ - RTPContext *s = h->priv_data; - char hostname[256]; - int port; - - char buf[1024]; - char path[1024]; - - url_split(NULL, 0, hostname, sizeof(hostname), &port, - path, sizeof(path), uri); - - snprintf(buf, sizeof(buf), "udp://%s:%d%s", hostname, port, path); - udp_set_remote_url(s->rtp_hd, buf); - - snprintf(buf, sizeof(buf), "udp://%s:%d%s", hostname, port + 1, path); - udp_set_remote_url(s->rtcp_hd, buf); - return 0; -} - - -/* add option to url of the form: - "http://host:port/path?option1=val1&option2=val2... */ -static void url_add_option(char *buf, int buf_size, const char *fmt, ...) -{ - char buf1[1024]; - va_list ap; - - va_start(ap, fmt); - if (strchr(buf, '?')) - pstrcat(buf, buf_size, "&"); - else - pstrcat(buf, buf_size, "?"); - vsnprintf(buf1, sizeof(buf1), fmt, ap); - pstrcat(buf, buf_size, buf1); - va_end(ap); -} - -static void build_udp_url(char *buf, int buf_size, - const char *hostname, int port, - int local_port, int multicast, int ttl) -{ - snprintf(buf, buf_size, "udp://%s:%d", hostname, port); - if (local_port >= 0) - url_add_option(buf, buf_size, "localport=%d", local_port); - if (multicast) - url_add_option(buf, buf_size, "multicast=1", multicast); - if (ttl >= 0) - url_add_option(buf, buf_size, "ttl=%d", ttl); -} - -/* - * url syntax: rtp://host:port[?option=val...] - * option: 'multicast=1' : enable multicast - * 'ttl=n' : set the ttl value (for multicast only) - * 'localport=n' : set the local port to n - * - */ -static int rtp_open(URLContext *h, const char *uri, int flags) -{ - RTPContext *s; - int port, is_output, is_multicast, ttl, local_port; - char hostname[256]; - char buf[1024]; - char path[1024]; - const char *p; - - is_output = (flags & URL_WRONLY); - - s = av_mallocz(sizeof(RTPContext)); - if (!s) - return -ENOMEM; - h->priv_data = s; - - url_split(NULL, 0, hostname, sizeof(hostname), &port, - path, sizeof(path), uri); - /* extract parameters */ - is_multicast = 0; - ttl = -1; - local_port = -1; - p = strchr(uri, '?'); - if (p) { - is_multicast = find_info_tag(buf, sizeof(buf), "multicast", p); - if (find_info_tag(buf, sizeof(buf), "ttl", p)) { - ttl = strtol(buf, NULL, 10); - } - if (find_info_tag(buf, sizeof(buf), "localport", p)) { - local_port = strtol(buf, NULL, 10); - } - } - - build_udp_url(buf, sizeof(buf), - hostname, port, local_port, is_multicast, ttl); - if (url_open(&s->rtp_hd, buf, flags) < 0) - goto fail; - local_port = udp_get_local_port(s->rtp_hd); - /* XXX: need to open another connexion if the port is not even */ - - /* well, should suppress localport in path */ - - build_udp_url(buf, sizeof(buf), - hostname, port + 1, local_port + 1, is_multicast, ttl); - if (url_open(&s->rtcp_hd, buf, flags) < 0) - goto fail; - - /* just to ease handle access. XXX: need to suppress direct handle - access */ - s->rtp_fd = udp_get_file_handle(s->rtp_hd); - s->rtcp_fd = udp_get_file_handle(s->rtcp_hd); - - h->max_packet_size = url_get_max_packet_size(s->rtp_hd); - h->is_streamed = 1; - return 0; - - fail: - if (s->rtp_hd) - url_close(s->rtp_hd); - if (s->rtcp_hd) - url_close(s->rtcp_hd); - av_free(s); - return -EIO; -} - -static int rtp_read(URLContext *h, uint8_t *buf, int size) -{ - RTPContext *s = h->priv_data; - struct sockaddr_in from; - int from_len, len, fd_max, n; - fd_set rfds; -#if 0 - for(;;) { - from_len = sizeof(from); - len = recvfrom (s->rtp_fd, buf, size, 0, - (struct sockaddr *)&from, &from_len); - if (len < 0) { - if (errno == EAGAIN || errno == EINTR) - continue; - return -EIO; - } - break; - } -#else - for(;;) { - /* build fdset to listen to RTP and RTCP packets */ - FD_ZERO(&rfds); - fd_max = s->rtp_fd; - FD_SET(s->rtp_fd, &rfds); - if (s->rtcp_fd > fd_max) - fd_max = s->rtcp_fd; - FD_SET(s->rtcp_fd, &rfds); - n = select(fd_max + 1, &rfds, NULL, NULL, NULL); - if (n > 0) { - /* first try RTCP */ - if (FD_ISSET(s->rtcp_fd, &rfds)) { - from_len = sizeof(from); - len = recvfrom (s->rtcp_fd, buf, size, 0, - (struct sockaddr *)&from, &from_len); - if (len < 0) { - if (errno == EAGAIN || errno == EINTR) - continue; - return -EIO; - } - break; - } - /* then RTP */ - if (FD_ISSET(s->rtp_fd, &rfds)) { - from_len = sizeof(from); - len = recvfrom (s->rtp_fd, buf, size, 0, - (struct sockaddr *)&from, &from_len); - if (len < 0) { - if (errno == EAGAIN || errno == EINTR) - continue; - return -EIO; - } - break; - } - } - } -#endif - return len; -} - -static int rtp_write(URLContext *h, uint8_t *buf, int size) -{ - RTPContext *s = h->priv_data; - int ret; - URLContext *hd; - - if (buf[1] >= 200 && buf[1] <= 204) { - /* RTCP payload type */ - hd = s->rtcp_hd; - } else { - /* RTP payload type */ - hd = s->rtp_hd; - } - - ret = url_write(hd, buf, size); -#if 0 - { - struct timespec ts; - ts.tv_sec = 0; - ts.tv_nsec = 10 * 1000000; - nanosleep(&ts, NULL); - } -#endif - return ret; -} - -static int rtp_close(URLContext *h) -{ - RTPContext *s = h->priv_data; - - url_close(s->rtp_hd); - url_close(s->rtcp_hd); - av_free(s); - return 0; -} - -/** - * Return the local port used by the RTP connexion - * @param s1 media file context - * @return the local port number - */ -int rtp_get_local_port(URLContext *h) -{ - RTPContext *s = h->priv_data; - return udp_get_local_port(s->rtp_hd); -} - -/** - * Return the rtp and rtcp file handles for select() usage to wait for several RTP - * streams at the same time. - * @param h media file context - */ -void rtp_get_file_handles(URLContext *h, int *prtp_fd, int *prtcp_fd) -{ - RTPContext *s = h->priv_data; - - *prtp_fd = s->rtp_fd; - *prtcp_fd = s->rtcp_fd; -} - -URLProtocol rtp_protocol = { - "rtp", - rtp_open, - rtp_read, - rtp_write, - NULL, /* seek */ - rtp_close, -};