27 #define _DEFAULT_SOURCE
47 #include "TargetConditionals.h"
56 #define UDPLITE_SEND_CSCOV 10
57 #define UDPLITE_RECV_CSCOV 11
60 #ifndef IPPROTO_UDPLITE
61 #define IPPROTO_UDPLITE 136
64 #if HAVE_PTHREAD_CANCEL
68 #ifndef IPV6_ADD_MEMBERSHIP
69 #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
70 #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
73 #define UDP_TX_BUF_SIZE 32768
74 #define UDP_MAX_PKT_SIZE 65536
75 #define UDP_HEADER_SIZE 8
100 #if HAVE_PTHREAD_CANCEL
116 #define OFFSET(x) offsetof(UDPContext, x)
117 #define D AV_OPT_FLAG_DECODING_PARAM
118 #define E AV_OPT_FLAG_ENCODING_PARAM
120 {
"buffer_size",
"System data size (in bytes)",
OFFSET(buffer_size),
AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, .flags =
D|
E },
122 {
"burst_bits",
"Max length of bursts in bits (when using bitrate)",
OFFSET(burst_bits),
AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT64_MAX, .flags =
E },
126 {
"udplite_coverage",
"choose UDPLite head size which should be validated by checksum",
OFFSET(udplite_coverage),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX,
D|
E },
127 {
"pkt_size",
"Maximum UDP packet size",
OFFSET(pkt_size),
AV_OPT_TYPE_INT, { .i64 = 1472 }, -1, INT_MAX, .flags =
D|
E },
128 {
"reuse",
"explicitly allow reusing UDP sockets",
OFFSET(reuse_socket),
AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1,
D|
E },
129 {
"reuse_socket",
"explicitly allow reusing UDP sockets",
OFFSET(reuse_socket),
AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, .flags =
D|
E },
130 {
"broadcast",
"explicitly allow or disallow broadcast destination",
OFFSET(is_broadcast),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1,
E },
132 {
"connect",
"set if connect() should be called on socket",
OFFSET(is_connected),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, .flags =
D|
E },
133 {
"fifo_size",
"set the UDP receiving circular buffer size, expressed as a number of packets with size of 188 bytes",
OFFSET(circular_buffer_size),
AV_OPT_TYPE_INT, {.i64 = 7*4096}, 0, INT_MAX,
D },
134 {
"overrun_nonfatal",
"survive in case of UDP receiving circular buffer overrun",
OFFSET(overrun_nonfatal),
AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1,
D },
135 {
"timeout",
"set raise error timeout (only in read mode)",
OFFSET(timeout),
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX,
D },
156 struct sockaddr *addr)
158 #ifdef IP_MULTICAST_TTL
159 if (addr->sa_family == AF_INET) {
160 if (setsockopt(sockfd, IPPROTO_IP, IP_MULTICAST_TTL, &mcastTTL,
sizeof(mcastTTL)) < 0) {
166 #if defined(IPPROTO_IPV6) && defined(IPV6_MULTICAST_HOPS)
167 if (addr->sa_family == AF_INET6) {
168 if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &mcastTTL,
sizeof(mcastTTL)) < 0) {
179 #ifdef IP_ADD_MEMBERSHIP
180 if (addr->sa_family == AF_INET) {
183 mreq.imr_multiaddr.s_addr = ((
struct sockaddr_in *)addr)->sin_addr.s_addr;
185 mreq.imr_interface= ((
struct sockaddr_in *)local_addr)->sin_addr;
187 mreq.imr_interface.s_addr= INADDR_ANY;
188 if (setsockopt(sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (
const void *)&mreq,
sizeof(mreq)) < 0) {
194 #if HAVE_STRUCT_IPV6_MREQ && defined(IPPROTO_IPV6)
195 if (addr->sa_family == AF_INET6) {
196 struct ipv6_mreq mreq6;
198 memcpy(&mreq6.ipv6mr_multiaddr, &(((
struct sockaddr_in6 *)addr)->sin6_addr),
sizeof(
struct in6_addr));
200 mreq6.ipv6mr_interface= 0;
212 #ifdef IP_DROP_MEMBERSHIP
213 if (addr->sa_family == AF_INET) {
216 mreq.imr_multiaddr.s_addr = ((
struct sockaddr_in *)addr)->sin_addr.s_addr;
218 mreq.imr_interface= ((
struct sockaddr_in *)local_addr)->sin_addr;
220 mreq.imr_interface.s_addr= INADDR_ANY;
221 if (setsockopt(sockfd, IPPROTO_IP, IP_DROP_MEMBERSHIP, (
const void *)&mreq,
sizeof(mreq)) < 0) {
227 #if HAVE_STRUCT_IPV6_MREQ && defined(IPPROTO_IPV6)
228 if (addr->sa_family == AF_INET6) {
229 struct ipv6_mreq mreq6;
231 memcpy(&mreq6.ipv6mr_multiaddr, &(((
struct sockaddr_in6 *)addr)->sin6_addr),
sizeof(
struct in6_addr));
233 mreq6.ipv6mr_interface= 0;
244 int sockfd,
struct sockaddr *addr,
247 int nb_sources,
int include)
250 if (addr->sa_family != AF_INET) {
251 #if HAVE_STRUCT_GROUP_SOURCE_REQ && defined(MCAST_BLOCK_SOURCE)
256 for (i = 0; i < nb_sources; i++) {
257 struct group_source_req mreqs;
258 int level = addr->sa_family == AF_INET ? IPPROTO_IP : IPPROTO_IPV6;
261 mreqs.gsr_interface = 0;
262 memcpy(&mreqs.gsr_group, addr, addr_len);
263 memcpy(&mreqs.gsr_source, &sources[i],
sizeof(*sources));
265 if (setsockopt(sockfd, level,
266 include ? MCAST_JOIN_SOURCE_GROUP : MCAST_BLOCK_SOURCE,
267 (
const void *)&mreqs,
sizeof(mreqs)) < 0) {
278 "Setting multicast sources only supported for IPv4\n");
282 #if HAVE_STRUCT_IP_MREQ_SOURCE && defined(IP_BLOCK_SOURCE)
283 for (i = 0; i < nb_sources; i++) {
284 struct ip_mreq_source mreqs;
285 if (sources[i].ss_family != AF_INET) {
290 mreqs.imr_multiaddr.s_addr = ((
struct sockaddr_in *)addr)->sin_addr.s_addr;
292 mreqs.imr_interface= ((
struct sockaddr_in *)local_addr)->sin_addr;
294 mreqs.imr_interface.s_addr= INADDR_ANY;
295 mreqs.imr_sourceaddr.s_addr = ((
struct sockaddr_in *)&sources[i])->sin_addr.s_addr;
297 if (setsockopt(sockfd, IPPROTO_IP,
298 include ? IP_ADD_SOURCE_MEMBERSHIP : IP_BLOCK_SOURCE,
299 (
const void *)&mreqs,
sizeof(mreqs)) < 0) {
314 const char *hostname,
int port)
320 if (!res0)
return AVERROR(EIO);
329 socklen_t *addr_len,
const char *localaddr)
334 int family = AF_UNSPEC;
336 if (((
struct sockaddr *) &s->
dest_addr)->sa_family)
337 family = ((
struct sockaddr *) &s->
dest_addr)->sa_family;
343 for (res = res0; res; res=res->
ai_next) {
348 if (udp_fd != -1)
break;
372 char sbuf[
sizeof(
int)*3+1];
380 return strtol(sbuf,
NULL, 10);
403 char hostname[256],
buf[10];
415 p = strchr(uri,
'?');
456 #if HAVE_PTHREAD_CANCEL
457 static void *circular_buffer_task_rx(
void *_URLContext)
463 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &old_cancelstate);
473 socklen_t addr_len =
sizeof(addr);
479 pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &old_cancelstate);
480 len = recvfrom(s->
udp_fd, s->
tmp+4,
sizeof(s->
tmp)-4, 0, (
struct sockaddr *)&addr, &addr_len);
481 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &old_cancelstate);
498 "Surviving due to overrun_nonfatal option\n");
502 "To avoid, increase fifo_size URL option. "
503 "To survive in such case, use overrun_nonfatal option\n");
518 static void *circular_buffer_task_tx(
void *_URLContext)
525 int64_t sent_bits = 0;
529 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &old_cancelstate);
564 pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &old_cancelstate);
568 if (timestamp < target_timestamp) {
569 int64_t delay = target_timestamp - timestamp;
570 if (delay > max_delay) {
572 start_timestamp = timestamp + delay;
577 if (timestamp - burst_interval > target_timestamp) {
578 start_timestamp = timestamp - burst_interval;
582 sent_bits += len * 8;
583 target_timestamp = start_timestamp + sent_bits * 1000000 / s->
bitrate;
591 ret = sendto (s->
udp_fd, p, len, 0,
595 ret = send(s->
udp_fd, p, len, 0);
610 pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &old_cancelstate);
626 char hostname[1024], localaddr[1024] =
"";
627 int port, udp_fd = -1,
tmp, bind_ret = -1, dscp = -1;
654 p = strchr(uri,
'?');
669 if (!HAVE_PTHREAD_CANCEL)
671 "'overrun_nonfatal' option was set but it is not supported "
672 "on this build (pthread support is required)\n");
675 s->
ttl = strtol(buf,
NULL, 10);
693 dscp = strtol(buf,
NULL, 10);
697 if (!HAVE_PTHREAD_CANCEL)
699 "'circular_buffer_size' option was set but it is not supported "
700 "on this build (pthread support is required)\n");
704 if (!HAVE_PTHREAD_CANCEL)
706 "'bitrate' option was set but it is not supported "
707 "on this build (pthread support is required)\n");
713 av_strlcpy(localaddr, buf,
sizeof(localaddr));
741 if (hostname[0] ==
'\0' || hostname[0] ==
'?') {
792 if (setsockopt (udp_fd, IPPROTO_IP, IP_TOS, &dscp,
sizeof(dscp)) != 0)
801 bind_ret = bind(udp_fd,(
struct sockaddr *)&s->
dest_addr, len);
806 if (bind_ret < 0 && bind(udp_fd,(
struct sockaddr *)&my_addr, len) < 0) {
811 len =
sizeof(my_addr);
812 getsockname(udp_fd, (
struct sockaddr *)&my_addr, &len);
816 if (h->
flags & AVIO_FLAG_WRITE) {
848 if (setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp,
sizeof(tmp)) < 0) {
855 if (setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp,
sizeof(tmp)) < 0) {
859 if (getsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, &len) < 0) {
863 if(tmp < s->buffer_size)
879 #if HAVE_PTHREAD_CANCEL
888 av_log(h,
AV_LOG_WARNING,
"'bitrate' option was set but 'circular_buffer_size' is not, but required\n");
906 ret =
pthread_create(&s->circular_buffer_thread,
NULL, is_output?circular_buffer_task_tx:circular_buffer_task_rx, h);
911 s->thread_started = 1;
916 #if HAVE_PTHREAD_CANCEL
945 socklen_t addr_len =
sizeof(addr);
946 #if HAVE_PTHREAD_CANCEL
971 }
else if(nonblock) {
979 struct timespec tv = { .tv_sec = t / 1000000,
980 .tv_nsec = (t % 1000000) * 1000 };
981 if (pthread_cond_timedwait(&s->cond, &s->mutex, &tv) < 0) {
983 return AVERROR(errno == ETIMEDOUT ? EAGAIN : errno);
996 ret = recvfrom(s->
udp_fd, buf, size, 0, (
struct sockaddr *)&addr, &addr_len);
1009 #if HAVE_PTHREAD_CANCEL
1045 ret = sendto (s->
udp_fd, buf, size, 0,
1049 ret = send(s->
udp_fd, buf, size, 0);
1058 #if HAVE_PTHREAD_CANCEL
1070 #if HAVE_PTHREAD_CANCEL
1071 if (s->thread_started) {
1075 pthread_cancel(s->circular_buffer_thread);
1097 .priv_data_class = &udp_class,
1109 .priv_data_class = &udplite_context_class,
static int udp_open(URLContext *h, const char *uri, int flags)
void av_url_split(char *proto, int proto_size, char *authorization, int authorization_size, char *hostname, int hostname_size, int *port_ptr, char *path, int path_size, const char *url)
Split a URL string into components.
static const AVClass udplite_context_class
static av_always_inline int pthread_mutex_destroy(pthread_mutex_t *mutex)
#define URL_PROTOCOL_FLAG_NETWORK
#define pthread_mutex_lock(a)
static av_always_inline int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
#define AV_LOG_WARNING
Something somehow does not look correct.
#define LIBAVUTIL_VERSION_INT
const URLProtocol ff_udplite_protocol
int is_streamed
true if streamed (no seek possible), default = false
#define AVIO_FLAG_READ
read-only
const char * av_default_item_name(void *ptr)
Return the context name.
int64_t rw_timeout
maximum time to wait for (network) read/write operation completion, in mcs
static int udp_set_url(URLContext *h, struct sockaddr_storage *addr, const char *hostname, int port)
#define AVIO_FLAG_WRITE
write-only
int ff_ip_parse_blocks(void *log_ctx, const char *buf, IPSourceFilters *filters)
Parses the address[,address] source block list in buf and adds it to the filters in the IPSourceFilte...
#define UDPLITE_SEND_CSCOV
struct sockaddr_storage * exclude_addrs
int av_usleep(unsigned usec)
Sleep for a period of time.
static av_always_inline int pthread_cond_destroy(pthread_cond_t *cond)
int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int(*func)(void *, void *, int))
Feed data from a user-supplied callback to an AVFifoBuffer.
int ff_socket(int af, int type, int proto)
int(* cond)(enum AVPixelFormat pix_fmt)
int ff_ip_parse_sources(void *log_ctx, const char *buf, IPSourceFilters *filters)
Parses the address[,address] source list in buf and adds it to the filters in the IPSourceFilters str...
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
#define av_assert0(cond)
assert() equivalent, that is always enabled.
#define UDPLITE_RECV_CSCOV
miscellaneous OS support macros and functions.
int ff_udp_get_local_port(URLContext *h)
Return the local port used by the UDP connection.
static av_cold int end(AVCodecContext *avctx)
int av_fifo_space(const AVFifoBuffer *f)
Return the amount of space in bytes in the AVFifoBuffer, that is the amount of data you can write int...
static int udp_leave_multicast_group(int sockfd, struct sockaddr *addr, struct sockaddr *local_addr)
static int udp_port(struct sockaddr_storage *addr, int addr_len)
struct sockaddr_storage * include_addrs
int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info)
Attempt to find a specific tag in a URL.
static av_always_inline int pthread_cond_signal(pthread_cond_t *cond)
static int udp_close(URLContext *h)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int ff_udp_set_remote_url(URLContext *h, const char *uri)
If no filename is given to av_open_input_file because you want to get the local port first...
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void(*func)(void *, void *, int))
Feed data from an AVFifoBuffer to a user-supplied callback.
simple assert() macros that are a bit more flexible than ISO C assert().
void ff_ip_reset_filters(IPSourceFilters *filters)
Resets the IP filter list and frees the internal fields of an IPSourceFilters structure.
int ff_is_multicast_address(struct sockaddr *addr)
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
static const AVOption options[]
uint8_t tmp[UDP_MAX_PKT_SIZE+4]
static av_always_inline int pthread_join(pthread_t thread, void **value_ptr)
static av_always_inline int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr)
static int udp_get_file_handle(URLContext *h)
Return the udp file handle for select() usage to wait for several RTP streams at the same time...
#define pthread_mutex_unlock(a)
struct sockaddr_storage local_addr_storage
int ff_socket_nonblock(int socket, int enable)
static void error(const char *err)
int64_t av_gettime(void)
Get the current time in microseconds.
static av_always_inline int pthread_create(pthread_t *thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg)
#define IPV6_ADD_MEMBERSHIP
int av_fifo_size(const AVFifoBuffer *f)
Return the amount of data in bytes in the AVFifoBuffer, that is the amount of data you can read from ...
#define AVIO_FLAG_NONBLOCK
Use non-blocking mode.
#define IPV6_DROP_MEMBERSHIP
a very simple circular buffer FIFO implementation
int ff_ip_check_source_lists(struct sockaddr_storage *source_addr_ptr, IPSourceFilters *s)
Checks the source address against a given IP source filter.
Describe the class of an AVClass context structure.
static int udp_set_multicast_sources(URLContext *h, int sockfd, struct sockaddr *addr, int addr_len, struct sockaddr_storage *local_addr, struct sockaddr_storage *sources, int nb_sources, int include)
int64_t av_gettime_relative(void)
Get the current time in microseconds since some unspecified starting point.
#define flags(name, subs,...)
struct sockaddr_storage dest_addr
static int udp_read(URLContext *h, uint8_t *buf, int size)
struct addrinfo * ai_next
static av_always_inline int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
static int udp_set_multicast_ttl(int sockfd, int mcastTTL, struct sockaddr *addr)
AVFifoBuffer * av_fifo_alloc(unsigned int size)
Initialize an AVFifoBuffer.
static int udplite_open(URLContext *h, const char *uri, int flags)
static int udp_join_multicast_group(int sockfd, struct sockaddr *addr, struct sockaddr *local_addr)
int circular_buffer_error
static int udp_socket_create(URLContext *h, struct sockaddr_storage *addr, socklen_t *addr_len, const char *localaddr)
struct addrinfo * ff_ip_resolve_host(void *log_ctx, const char *hostname, int port, int type, int family, int flags)
Resolves hostname into an addrinfo structure.
int max_packet_size
if non zero, the stream is packetized with this max packet size
static const AVClass udp_class
int ff_network_wait_fd(int fd, int write)
unbuffered private I/O API
void av_fifo_freep(AVFifoBuffer **f)
Free an AVFifoBuffer and reset pointer to NULL.
void av_fifo_drain(AVFifoBuffer *f, int size)
Discard data from the FIFO.
struct sockaddr * ai_addr
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Structure for storing IP (UDP) source filters or block lists.
void ff_log_net_error(void *ctx, int level, const char *prefix)
static int udp_write(URLContext *h, const uint8_t *buf, int size)
const URLProtocol ff_udp_protocol