bethsoftvid: pass palette in side data instead of in a separate packet.

[ffmpeg] / libavformat / udp.c

diff --git a/libavformat/udp.c b/libavformat/udp.c
index 76e3f1a4a2aa7a05d195afa06b10696034775f34..8bb63c629808abe8e60e3b790af43d6844d845bf 100644 (file)
--- a/libavformat/udp.c
+++ b/libavformat/udp.c
@@ -25,10 +25,11 @@
  */
 
 #define _BSD_SOURCE     /* Needed for using struct ip_mreq with recent glibc */
-#define _DARWIN_C_SOURCE /* Needed for using IP_MULTICAST_TTL on OS X */
+
 #include "avformat.h"
 #include "avio_internal.h"
 #include "libavutil/parseutils.h"
+#include "libavutil/avstring.h"
 #include <unistd.h>
 #include "internal.h"
 #include "network.h"
@@ -178,8 +179,8 @@ static int udp_set_url(struct sockaddr_storage *addr,
     return addr_len;
 }
 
-static int udp_socket_create(UDPContext *s,
-                             struct sockaddr_storage *addr, int *addr_len)
+static int udp_socket_create(UDPContext *s, struct sockaddr_storage *addr,
+                             int *addr_len, const char *localaddr)
 {
     int udp_fd = -1;
     struct addrinfo *res0 = NULL, *res = NULL;
@@ -187,7 +188,8 @@ static int udp_socket_create(UDPContext *s,
 
     if (((struct sockaddr *) &s->dest_addr)->sa_family)
         family = ((struct sockaddr *) &s->dest_addr)->sa_family;
-    res0 = udp_resolve_host(0, s->local_port, SOCK_DGRAM, family, AI_PASSIVE);
+    res0 = udp_resolve_host(localaddr[0] ? localaddr : NULL, s->local_port,
+                            SOCK_DGRAM, family, AI_PASSIVE);
     if (res0 == 0)
         goto fail;
     for (res = res0; res; res=res->ai_next) {
@@ -266,7 +268,7 @@ int ff_udp_set_remote_url(URLContext *h, const char *uri)
                 if (connect(s->udp_fd, (struct sockaddr *) &s->dest_addr,
                             s->dest_addr_len)) {
                     s->is_connected = 0;
-                    av_log(NULL, AV_LOG_ERROR, "connect: %s\n", strerror(errno));
+                    av_log(h, AV_LOG_ERROR, "connect: %s\n", strerror(errno));
                     return AVERROR(EIO);
                 }
             }
@@ -302,9 +304,9 @@ static int udp_get_file_handle(URLContext *h)
 /* return non zero if error */
 static int udp_open(URLContext *h, const char *uri, int flags)
 {
-    char hostname[1024];
+    char hostname[1024], localaddr[1024] = "";
     int port, udp_fd = -1, tmp, bind_ret = -1;
-    UDPContext *s = NULL;
+    UDPContext *s = h->priv_data;
     int is_output;
     const char *p;
     char buf[256];
@@ -315,20 +317,15 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     h->is_streamed = 1;
     h->max_packet_size = 1472;
 
-    is_output = (flags & AVIO_FLAG_WRITE);
+    is_output = !(flags & AVIO_FLAG_READ);
 
-    s = av_mallocz(sizeof(UDPContext));
-    if (!s)
-        return AVERROR(ENOMEM);
-
-    h->priv_data = s;
     s->ttl = 16;
     s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_MAX_PKT_SIZE;
 
     p = strchr(uri, '?');
     if (p) {
         if (av_find_info_tag(buf, sizeof(buf), "reuse", p)) {
-            const char *endptr=NULL;
+            char *endptr = NULL;
             s->reuse_socket = strtol(buf, &endptr, 10);
             /* assume if no digits were found it is a request to enable it */
             if (buf == endptr)
@@ -350,6 +347,9 @@ static int udp_open(URLContext *h, const char *uri, int flags)
         if (av_find_info_tag(buf, sizeof(buf), "connect", p)) {
             s->is_connected = strtol(buf, NULL, 10);
         }
+        if (av_find_info_tag(buf, sizeof(buf), "localaddr", p)) {
+            av_strlcpy(localaddr, buf, sizeof(localaddr));
+        }
     }
 
     /* fill the dest addr */
@@ -358,21 +358,21 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     /* XXX: fix av_url_split */
     if (hostname[0] == '\0' || hostname[0] == '?') {
         /* only accepts null hostname if input */
-        if (flags & AVIO_FLAG_WRITE)
+        if (!(flags & AVIO_FLAG_READ))
             goto fail;
     } else {
         if (ff_udp_set_remote_url(h, uri) < 0)
             goto fail;
     }
 
-    if (s->is_multicast && !(h->flags & AVIO_FLAG_WRITE))
+    if ((s->is_multicast || !s->local_port) && (h->flags & AVIO_FLAG_READ))
         s->local_port = port;
-    udp_fd = udp_socket_create(s, &my_addr, &len);
+    udp_fd = udp_socket_create(s, &my_addr, &len, localaddr);
     if (udp_fd < 0)
         goto fail;
 
     /* Follow the requested reuse option, unless it's multicast in which
-     * case enable reuse unless explicitely disabled.
+     * case enable reuse unless explicitly disabled.
      */
     if (s->reuse_socket || (s->is_multicast && !reuse_specified)) {
         s->reuse_socket = 1;
@@ -382,7 +382,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
 
     /* the bind is needed to give a port to the socket now */
     /* if multicast, try the multicast address bind first */
-    if (s->is_multicast && !(h->flags & AVIO_FLAG_WRITE)) {
+    if (s->is_multicast && (h->flags & AVIO_FLAG_READ)) {
         bind_ret = bind(udp_fd,(struct sockaddr *)&s->dest_addr, len);
     }
     /* bind to the local address if not multicast or if the multicast
@@ -395,7 +395,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
     s->local_port = udp_port(&my_addr, len);
 
     if (s->is_multicast) {
-        if (h->flags & AVIO_FLAG_WRITE) {
+        if (!(h->flags & AVIO_FLAG_READ)) {
             /* output */
             if (udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr) < 0)
                 goto fail;
@@ -410,7 +410,7 @@ static int udp_open(URLContext *h, const char *uri, int flags)
         /* limit the tx buf size to limit latency */
         tmp = s->buffer_size;
         if (setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)) < 0) {
-            av_log(NULL, AV_LOG_ERROR, "setsockopt(SO_SNDBUF): %s\n", strerror(errno));
+            av_log(h, AV_LOG_ERROR, "setsockopt(SO_SNDBUF): %s\n", strerror(errno));
             goto fail;
         }
     } else {
@@ -418,14 +418,14 @@ static int udp_open(URLContext *h, const char *uri, int flags)
          * avoid losing data on OSes that set this too low by default. */
         tmp = s->buffer_size;
         if (setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp)) < 0) {
-            av_log(NULL, AV_LOG_WARNING, "setsockopt(SO_RECVBUF): %s\n", strerror(errno));
+            av_log(h, AV_LOG_WARNING, "setsockopt(SO_RECVBUF): %s\n", strerror(errno));
         }
         /* make the socket non-blocking */
         ff_socket_nonblock(udp_fd, 1);
     }
     if (s->is_connected) {
         if (connect(udp_fd, (struct sockaddr *) &s->dest_addr, s->dest_addr_len)) {
-            av_log(NULL, AV_LOG_ERROR, "connect: %s\n", strerror(errno));
+            av_log(h, AV_LOG_ERROR, "connect: %s\n", strerror(errno));
             goto fail;
         }
     }
@@ -435,7 +435,6 @@ static int udp_open(URLContext *h, const char *uri, int flags)
  fail:
     if (udp_fd >= 0)
         closesocket(udp_fd);
-    av_free(s);
     return AVERROR(EIO);
 }
 
@@ -478,10 +477,9 @@ static int udp_close(URLContext *h)
 {
     UDPContext *s = h->priv_data;
 
-    if (s->is_multicast && !(h->flags & AVIO_FLAG_WRITE))
+    if (s->is_multicast && (h->flags & AVIO_FLAG_READ))
         udp_leave_multicast_group(s->udp_fd, (struct sockaddr *)&s->dest_addr);
     closesocket(s->udp_fd);
-    av_free(s);
     return 0;
 }
 
@@ -492,4 +490,6 @@ URLProtocol ff_udp_protocol = {
     .url_write           = udp_write,
     .url_close           = udp_close,
     .url_get_file_handle = udp_get_file_handle,
+    .priv_data_size      = sizeof(UDPContext),
+    .flags               = URL_PROTOCOL_FLAG_NETWORK,
 };