#include "avio_internal.h"
#include "libavutil/parseutils.h"
#include "libavutil/avstring.h"
+#include "libavutil/opt.h"
#include "internal.h"
#include "network.h"
#include "os_support.h"
#endif
typedef struct UDPContext {
+ const AVClass *class;
int udp_fd;
int ttl;
int buffer_size;
+ int pkt_size;
int is_multicast;
int local_port;
int reuse_socket;
struct sockaddr_storage dest_addr;
int dest_addr_len;
int is_connected;
+ char *localaddr;
+ char *sources;
+ char *block;
} UDPContext;
#define UDP_TX_BUF_SIZE 32768
#define UDP_MAX_PKT_SIZE 65536
+#define OFFSET(x) offsetof(UDPContext, 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 = 16 }, 0, INT_MAX, .flags = D|E },
+ { "buffer_size", "System data size (in bytes)", OFFSET(buffer_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, .flags = D|E },
+ { "local_port", "Local port", OFFSET(local_port), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, .flags = D|E },
+ { "reuse_socket", "Reuse socket", OFFSET(reuse_socket), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, 1, .flags = D|E },
+ { "connect", "Connect socket", OFFSET(is_connected), 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 },
+ { "localaddr", "Local address", OFFSET(localaddr), AV_OPT_TYPE_STRING, { .str = NULL }, .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 udp_class = {
+ .class_name = "udp",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
static void log_net_error(void *ctx, int level, const char* prefix)
{
char errbuf[100];
return 0;
}
-static struct addrinfo* udp_resolve_host(const char *hostname, int port,
+static struct addrinfo *udp_resolve_host(URLContext *h,
+ const char *hostname, int port,
int type, int family, int flags)
{
struct addrinfo hints = { 0 }, *res = 0;
hints.ai_flags = flags;
if ((error = getaddrinfo(node, service, &hints, &res))) {
res = NULL;
- av_log(NULL, AV_LOG_ERROR, "udp_resolve_host: %s\n", gai_strerror(error));
+ av_log(h, AV_LOG_ERROR, "getaddrinfo(%s, %s): %s\n",
+ node ? node : "unknown",
+ service ? service : "unknown",
+ gai_strerror(error));
}
return res;
}
-static int udp_set_multicast_sources(int sockfd, struct sockaddr *addr,
+static int udp_set_multicast_sources(URLContext *h,
+ int sockfd, struct sockaddr *addr,
int addr_len, char **sources,
int nb_sources, int include)
{
for (i = 0; i < nb_sources; i++) {
struct group_source_req mreqs;
int level = addr->sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
- struct addrinfo *sourceaddr = udp_resolve_host(sources[i], 0,
+ struct addrinfo *sourceaddr = udp_resolve_host(h, sources[i], 0,
SOCK_DGRAM, AF_UNSPEC,
0);
if (!sourceaddr)
}
for (i = 0; i < nb_sources; i++) {
struct ip_mreq_source mreqs;
- struct addrinfo *sourceaddr = udp_resolve_host(sources[i], 0,
+ struct addrinfo *sourceaddr = udp_resolve_host(h, sources[i], 0,
SOCK_DGRAM, AF_UNSPEC,
0);
if (!sourceaddr)
#endif
return 0;
}
-static int udp_set_url(struct sockaddr_storage *addr,
+static int udp_set_url(URLContext *h,
+ struct sockaddr_storage *addr,
const char *hostname, int port)
{
struct addrinfo *res0;
int addr_len;
- res0 = udp_resolve_host(hostname, port, SOCK_DGRAM, AF_UNSPEC, 0);
+ res0 = udp_resolve_host(h, hostname, port, SOCK_DGRAM, AF_UNSPEC, 0);
if (res0 == 0) return AVERROR(EIO);
memcpy(addr, res0->ai_addr, res0->ai_addrlen);
addr_len = res0->ai_addrlen;
return addr_len;
}
-static int udp_socket_create(UDPContext *s, struct sockaddr_storage *addr,
+static int udp_socket_create(URLContext *h, struct sockaddr_storage *addr,
socklen_t *addr_len, const char *localaddr)
{
+ UDPContext *s = h->priv_data;
int udp_fd = -1;
struct addrinfo *res0 = NULL, *res = NULL;
int family = AF_UNSPEC;
if (((struct sockaddr *) &s->dest_addr)->sa_family)
family = ((struct sockaddr *) &s->dest_addr)->sa_family;
- res0 = udp_resolve_host(localaddr[0] ? localaddr : NULL, s->local_port,
+ res0 = udp_resolve_host(h, (localaddr && localaddr[0]) ? localaddr : NULL,
+ s->local_port,
SOCK_DGRAM, family, AI_PASSIVE);
if (res0 == 0)
goto fail;
av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port, NULL, 0, uri);
/* set the destination address */
- s->dest_addr_len = udp_set_url(&s->dest_addr, hostname, port);
+ s->dest_addr_len = udp_set_url(h, &s->dest_addr, hostname, port);
if (s->dest_addr_len < 0) {
return AVERROR(EIO);
}
char buf[256];
struct sockaddr_storage my_addr;
socklen_t len;
- int reuse_specified = 0;
int i, num_include_sources = 0, num_exclude_sources = 0;
char *include_sources[32], *exclude_sources[32];
is_output = !(flags & AVIO_FLAG_READ);
- s->ttl = 16;
- s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_MAX_PKT_SIZE;
+ if (s->buffer_size < 0)
+ s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_MAX_PKT_SIZE;
+
+ if (s->sources) {
+ if (parse_source_list(s->sources, include_sources,
+ &num_include_sources,
+ FF_ARRAY_ELEMS(include_sources)))
+ goto fail;
+ }
+
+ if (s->block) {
+ if (parse_source_list(s->block, exclude_sources, &num_exclude_sources,
+ FF_ARRAY_ELEMS(exclude_sources)))
+ goto fail;
+ }
+
+ if (s->pkt_size > 0)
+ h->max_packet_size = s->pkt_size;
p = strchr(uri, '?');
if (p) {
/* assume if no digits were found it is a request to enable it */
if (buf == endptr)
s->reuse_socket = 1;
- reuse_specified = 1;
}
if (av_find_info_tag(buf, sizeof(buf), "ttl", p)) {
s->ttl = strtol(buf, NULL, 10);
goto fail;
}
- if ((s->is_multicast || !s->local_port) && (h->flags & AVIO_FLAG_READ))
+ if ((s->is_multicast || s->local_port < 0) && (h->flags & AVIO_FLAG_READ))
s->local_port = port;
- udp_fd = udp_socket_create(s, &my_addr, &len, localaddr);
+
+ if (localaddr[0])
+ udp_fd = udp_socket_create(h, &my_addr, &len, localaddr);
+ else
+ udp_fd = udp_socket_create(h, &my_addr, &len, s->localaddr);
if (udp_fd < 0)
goto fail;
/* Follow the requested reuse option, unless it's multicast in which
* case enable reuse unless explicitly disabled.
*/
- if (s->reuse_socket || (s->is_multicast && !reuse_specified)) {
+ if (s->reuse_socket > 0 || (s->is_multicast && s->reuse_socket < 0)) {
s->reuse_socket = 1;
if (setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0)
goto fail;
goto fail;
}
if (num_include_sources) {
- if (udp_set_multicast_sources(udp_fd, (struct sockaddr *)&s->dest_addr, s->dest_addr_len, include_sources, num_include_sources, 1) < 0)
+ if (udp_set_multicast_sources(h, udp_fd,
+ (struct sockaddr *)&s->dest_addr,
+ s->dest_addr_len,
+ include_sources,
+ num_include_sources, 1) < 0)
goto fail;
} else {
if (udp_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr) < 0)
goto fail;
}
if (num_exclude_sources) {
- if (udp_set_multicast_sources(udp_fd, (struct sockaddr *)&s->dest_addr, s->dest_addr_len, exclude_sources, num_exclude_sources, 0) < 0)
+ if (udp_set_multicast_sources(h, udp_fd,
+ (struct sockaddr *)&s->dest_addr,
+ s->dest_addr_len,
+ exclude_sources,
+ num_exclude_sources, 0) < 0)
goto fail;
}
}
return 0;
}
-URLProtocol ff_udp_protocol = {
+const URLProtocol ff_udp_protocol = {
.name = "udp",
.url_open = udp_open,
.url_read = udp_read,
.url_get_file_handle = udp_get_file_handle,
.priv_data_size = sizeof(UDPContext),
.flags = URL_PROTOCOL_FLAG_NETWORK,
+ .priv_data_class = &udp_class,
};
projects / ffmpeg / blobdiff