diff --git a/libavformat/rtpproto.c b/libavformat/rtpproto.c index 5bff00ed7a..2e83bbbc01 100644 --- a/libavformat/rtpproto.c +++ b/libavformat/rtpproto.c @@ -26,6 +26,7 @@ #include "libavutil/parseutils.h" #include "libavutil/avstring.h" +#include "libavutil/opt.h" #include "avformat.h" #include "avio_internal.h" #include "rtp.h" @@ -42,14 +43,44 @@ #endif typedef struct RTPContext { + const AVClass *class; URLContext *rtp_hd, *rtcp_hd; int rtp_fd, rtcp_fd, nb_ssm_include_addrs, nb_ssm_exclude_addrs; struct sockaddr_storage **ssm_include_addrs, **ssm_exclude_addrs; int write_to_source; struct sockaddr_storage last_rtp_source, last_rtcp_source; socklen_t last_rtp_source_len, last_rtcp_source_len; + int ttl; + int rtcp_port, local_rtpport, local_rtcpport; + int connect; + int pkt_size; + char *sources; + char *block; } RTPContext; +#define OFFSET(x) offsetof(RTPContext, x) +#define D AV_OPT_FLAG_DECODING_PARAM +#define E AV_OPT_FLAG_ENCODING_PARAM +static const AVOption options[] = { + { "ttl", "Time to live (in milliseconds, multicast only)", OFFSET(ttl), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, .flags = D|E }, + { "rtcp_port", "Custom rtcp port", OFFSET(rtcp_port), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, .flags = D|E }, + { "local_rtpport", "Local rtp port", OFFSET(local_rtpport), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, .flags = D|E }, + { "local_rtcpport", "Local rtcp port", OFFSET(local_rtcpport), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, .flags = D|E }, + { "connect", "Connect socket", OFFSET(connect), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = D|E }, + { "write_to_source", "Send packets to the source address of the latest received packet", OFFSET(write_to_source), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, .flags = D|E }, + { "pkt_size", "Maximum packet size", OFFSET(pkt_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, .flags = D|E }, + { "sources", "Source list", OFFSET(sources), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = D|E }, + { "block", "Block list", OFFSET(block), AV_OPT_TYPE_STRING, { .str = NULL }, .flags = D|E }, + { NULL } +}; + +static const AVClass rtp_class = { + .class_name = "rtp", + .item_name = av_default_item_name, + .option = options, + .version = LIBAVUTIL_VERSION_INT, +}; + /** * 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 @@ -188,21 +219,21 @@ static av_printf_format(3, 4) void url_add_option(char *buf, int buf_size, const va_end(ap); } -static void build_udp_url(char *buf, int buf_size, - const char *hostname, int port, - int local_port, int ttl, - int max_packet_size, int connect, +static void build_udp_url(RTPContext *s, + char *buf, int buf_size, + const char *hostname, + int port, int local_port, const char *include_sources, const char *exclude_sources) { ff_url_join(buf, buf_size, "udp", NULL, hostname, port, NULL); if (local_port >= 0) url_add_option(buf, buf_size, "localport=%d", local_port); - if (ttl >= 0) - url_add_option(buf, buf_size, "ttl=%d", ttl); - if (max_packet_size >=0) - url_add_option(buf, buf_size, "pkt_size=%d", max_packet_size); - if (connect) + if (s->ttl >= 0) + url_add_option(buf, buf_size, "ttl=%d", s->ttl); + if (s->pkt_size >= 0) + url_add_option(buf, buf_size, "pkt_size=%d", s->pkt_size); + if (s->connect) url_add_option(buf, buf_size, "connect=1"); if (include_sources && include_sources[0]) url_add_option(buf, buf_size, "sources=%s", include_sources); @@ -275,10 +306,9 @@ static void rtp_parse_addr_list(URLContext *h, char *buf, static int rtp_open(URLContext *h, const char *uri, int flags) { RTPContext *s = h->priv_data; - int rtp_port, rtcp_port, - ttl, connect, - local_rtp_port, local_rtcp_port, max_packet_size; + int rtp_port; char hostname[256], include_sources[1024] = "", exclude_sources[1024] = ""; + char *sources = include_sources, *block = exclude_sources; char buf[1024]; char path[1024]; const char *p; @@ -286,60 +316,61 @@ static int rtp_open(URLContext *h, const char *uri, int flags) av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &rtp_port, path, sizeof(path), uri); /* extract parameters */ - ttl = -1; - rtcp_port = rtp_port+1; - local_rtp_port = -1; - local_rtcp_port = -1; - max_packet_size = -1; - connect = 0; + if (s->rtcp_port < 0) + s->rtcp_port = rtp_port + 1; p = strchr(uri, '?'); if (p) { if (av_find_info_tag(buf, sizeof(buf), "ttl", p)) { - ttl = strtol(buf, NULL, 10); + s->ttl = strtol(buf, NULL, 10); } if (av_find_info_tag(buf, sizeof(buf), "rtcpport", p)) { - rtcp_port = strtol(buf, NULL, 10); + s->rtcp_port = strtol(buf, NULL, 10); } if (av_find_info_tag(buf, sizeof(buf), "localport", p)) { - local_rtp_port = strtol(buf, NULL, 10); + s->local_rtpport = strtol(buf, NULL, 10); } if (av_find_info_tag(buf, sizeof(buf), "localrtpport", p)) { - local_rtp_port = strtol(buf, NULL, 10); + s->local_rtpport = strtol(buf, NULL, 10); } if (av_find_info_tag(buf, sizeof(buf), "localrtcpport", p)) { - local_rtcp_port = strtol(buf, NULL, 10); + s->local_rtcpport = strtol(buf, NULL, 10); } if (av_find_info_tag(buf, sizeof(buf), "pkt_size", p)) { - max_packet_size = strtol(buf, NULL, 10); + s->pkt_size = strtol(buf, NULL, 10); } if (av_find_info_tag(buf, sizeof(buf), "connect", p)) { - connect = strtol(buf, NULL, 10); + s->connect = strtol(buf, NULL, 10); } if (av_find_info_tag(buf, sizeof(buf), "write_to_source", p)) { s->write_to_source = strtol(buf, NULL, 10); } if (av_find_info_tag(buf, sizeof(buf), "sources", p)) { av_strlcpy(include_sources, buf, sizeof(include_sources)); + rtp_parse_addr_list(h, buf, &s->ssm_include_addrs, &s->nb_ssm_include_addrs); + } else { + rtp_parse_addr_list(h, s->sources, &s->ssm_include_addrs, &s->nb_ssm_include_addrs); + sources = s->sources; } if (av_find_info_tag(buf, sizeof(buf), "block", p)) { av_strlcpy(exclude_sources, buf, sizeof(exclude_sources)); rtp_parse_addr_list(h, buf, &s->ssm_exclude_addrs, &s->nb_ssm_exclude_addrs); + } else { + rtp_parse_addr_list(h, s->block, &s->ssm_exclude_addrs, &s->nb_ssm_exclude_addrs); + block = s->block; } } - build_udp_url(buf, sizeof(buf), - hostname, rtp_port, local_rtp_port, ttl, max_packet_size, - connect, include_sources, exclude_sources); + build_udp_url(s, buf, sizeof(buf), + hostname, rtp_port, s->local_rtpport, sources, block); if (ffurl_open(&s->rtp_hd, buf, flags, &h->interrupt_callback, NULL) < 0) goto fail; - if (local_rtp_port>=0 && local_rtcp_port<0) - local_rtcp_port = ff_udp_get_local_port(s->rtp_hd) + 1; + if (s->local_rtpport >= 0 && s->local_rtcpport < 0) + s->local_rtcpport = ff_udp_get_local_port(s->rtp_hd) + 1; - build_udp_url(buf, sizeof(buf), - hostname, rtcp_port, local_rtcp_port, ttl, max_packet_size, - connect, include_sources, exclude_sources); + build_udp_url(s, buf, sizeof(buf), + hostname, s->rtcp_port, s->local_rtcpport, sources, block); if (ffurl_open(&s->rtcp_hd, buf, flags, &h->interrupt_callback, NULL) < 0) goto fail; @@ -548,4 +579,5 @@ URLProtocol ff_rtp_protocol = { .url_get_multi_file_handle = rtp_get_multi_file_handle, .priv_data_size = sizeof(RTPContext), .flags = URL_PROTOCOL_FLAG_NETWORK, + .priv_data_class = &rtp_class, };