avf: move url utility functions in a separate file

libavformat/Makefile

@@ -20,6 +20,7 @@ OBJS = allformats.o         \
        riff.o               \
        sdp.o                \
        seek.o               \
+       url.o                \
        utils.o              \
 
 OBJS-$(CONFIG_NETWORK)                   += network.o

libavformat/internal.h

@@ -90,31 +90,6 @@ void ff_read_frame_flush(AVFormatContext *s);
 /** Get the current time since NTP epoch in microseconds. */
 uint64_t ff_ntp_time(void);
 
-/**
- * Assemble a URL string from components. This is the reverse operation
- * of av_url_split.
- *
- * Note, this requires networking to be initialized, so the caller must
- * ensure ff_network_init has been called.
- *
- * @see av_url_split
- *
- * @param str the buffer to fill with the url
- * @param size the size of the str buffer
- * @param proto the protocol identifier, if null, the separator
- *              after the identifier is left out, too
- * @param authorization an optional authorization string, may be null.
- *                      An empty string is treated the same as a null string.
- * @param hostname the host name string
- * @param port the port number, left out from the string if negative
- * @param fmt a generic format string for everything to add after the
- *            host/port, may be null
- * @return the number of characters written to the destination buffer
- */
-int ff_url_join(char *str, int size, const char *proto,
-                const char *authorization, const char *hostname,
-                int port, const char *fmt, ...) av_printf_format(7, 8);
-
 /**
  * Append the media-specific SDP fragment for the media stream c
  * to the buffer buff.
@@ -241,17 +216,6 @@ AVChapter *avpriv_new_chapter(AVFormatContext *s, int id, AVRational time_base,
  */
 void ff_reduce_index(AVFormatContext *s, int stream_index);
 
-/*
- * Convert a relative url into an absolute url, given a base url.
- *
- * @param buf the buffer where output absolute url is written
- * @param size the size of buf
- * @param base the base url, may be equal to buf.
- * @param rel the new url, which is interpreted relative to base
- */
-void ff_make_absolute_url(char *buf, int size, const char *base,
-                          const char *rel);
-
 enum AVCodecID ff_guess_image2_codec(const char *filename);
 
 /**

libavformat/url-test.c

@@ -18,7 +18,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include "internal.h"
+#include "url.h"
 
 static void test(const char *base, const char *rel)
 {

libavformat/url.c

@@ -0,0 +1,147 @@
+/*
+ * URL utility functions
+ * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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 2.1 of the License, or (at your option) any later version.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+#include "avformat.h"
+#include "config.h"
+#include "url.h"
+#if CONFIG_NETWORK
+#include "network.h"
+#endif
+#include "libavutil/avstring.h"
+
+/**
+ * @file
+ * URL utility functions.
+ */
+
+int ff_url_join(char *str, int size, const char *proto,
+                const char *authorization, const char *hostname,
+                int port, const char *fmt, ...)
+{
+#if CONFIG_NETWORK
+    struct addrinfo hints = { 0 }, *ai;
+#endif
+
+    str[0] = '\0';
+    if (proto)
+        av_strlcatf(str, size, "%s://", proto);
+    if (authorization && authorization[0])
+        av_strlcatf(str, size, "%s@", authorization);
+#if CONFIG_NETWORK && defined(AF_INET6)
+    /* Determine if hostname is a numerical IPv6 address,
+     * properly escape it within [] in that case. */
+    hints.ai_flags = AI_NUMERICHOST;
+    if (!getaddrinfo(hostname, NULL, &hints, &ai)) {
+        if (ai->ai_family == AF_INET6) {
+            av_strlcat(str, "[", size);
+            av_strlcat(str, hostname, size);
+            av_strlcat(str, "]", size);
+        } else {
+            av_strlcat(str, hostname, size);
+        }
+        freeaddrinfo(ai);
+    } else
+#endif
+        /* Not an IPv6 address, just output the plain string. */
+        av_strlcat(str, hostname, size);
+
+    if (port >= 0)
+        av_strlcatf(str, size, ":%d", port);
+    if (fmt) {
+        va_list vl;
+        int len = strlen(str);
+
+        va_start(vl, fmt);
+        vsnprintf(str + len, size > len ? size - len : 0, fmt, vl);
+        va_end(vl);
+    }
+    return strlen(str);
+}
+
+void ff_make_absolute_url(char *buf, int size, const char *base,
+                          const char *rel)
+{
+    char *sep, *path_query;
+    /* Absolute path, relative to the current server */
+    if (base && strstr(base, "://") && rel[0] == '/') {
+        if (base != buf)
+            av_strlcpy(buf, base, size);
+        sep = strstr(buf, "://");
+        if (sep) {
+            /* Take scheme from base url */
+            if (rel[1] == '/') {
+                sep[1] = '\0';
+            } else {
+                /* Take scheme and host from base url */
+                sep += 3;
+                sep = strchr(sep, '/');
+                if (sep)
+                    *sep = '\0';
+            }
+        }
+        av_strlcat(buf, rel, size);
+        return;
+    }
+    /* If rel actually is an absolute url, just copy it */
+    if (!base || strstr(rel, "://") || rel[0] == '/') {
+        av_strlcpy(buf, rel, size);
+        return;
+    }
+    if (base != buf)
+        av_strlcpy(buf, base, size);
+
+    /* Strip off any query string from base */
+    path_query = strchr(buf, '?');
+    if (path_query != NULL)
+        *path_query = '\0';
+
+    /* Is relative path just a new query part? */
+    if (rel[0] == '?') {
+        av_strlcat(buf, rel, size);
+        return;
+    }
+
+    /* Remove the file name from the base url */
+    sep = strrchr(buf, '/');
+    if (sep)
+        sep[1] = '\0';
+    else
+        buf[0] = '\0';
+    while (av_strstart(rel, "../", NULL) && sep) {
+        /* Remove the path delimiter at the end */
+        sep[0] = '\0';
+        sep = strrchr(buf, '/');
+        /* If the next directory name to pop off is "..", break here */
+        if (!strcmp(sep ? &sep[1] : buf, "..")) {
+            /* Readd the slash we just removed */
+            av_strlcat(buf, "/", size);
+            break;
+        }
+        /* Cut off the directory name */
+        if (sep)
+            sep[1] = '\0';
+        else
+            buf[0] = '\0';
+        rel += 3;
+    }
+    av_strlcat(buf, rel, size);
+}

libavformat/url.h

@@ -246,4 +246,41 @@ URLProtocol *ffurl_protocol_next(URLProtocol *prev);
 int ff_udp_set_remote_url(URLContext *h, const char *uri);
 int ff_udp_get_local_port(URLContext *h);
 
+/**
+ * Assemble a URL string from components. This is the reverse operation
+ * of av_url_split.
+ *
+ * Note, this requires networking to be initialized, so the caller must
+ * ensure ff_network_init has been called.
+ *
+ * @see av_url_split
+ *
+ * @param str the buffer to fill with the url
+ * @param size the size of the str buffer
+ * @param proto the protocol identifier, if null, the separator
+ *              after the identifier is left out, too
+ * @param authorization an optional authorization string, may be null.
+ *                      An empty string is treated the same as a null string.
+ * @param hostname the host name string
+ * @param port the port number, left out from the string if negative
+ * @param fmt a generic format string for everything to add after the
+ *            host/port, may be null
+ * @return the number of characters written to the destination buffer
+ */
+int ff_url_join(char *str, int size, const char *proto,
+                const char *authorization, const char *hostname,
+                int port, const char *fmt, ...) av_printf_format(7, 8);
+
+/*
+ * Convert a relative url into an absolute url, given a base url.
+ *
+ * @param buf the buffer where output absolute url is written
+ * @param size the size of buf
+ * @param base the base url, may be equal to buf.
+ * @param rel the new url, which is interpreted relative to base
+ */
+void ff_make_absolute_url(char *buf, int size, const char *base,
+                          const char *rel);
+
+
 #endif /* AVFORMAT_URL_H */

libavformat/utils.c

@@ -3109,50 +3109,6 @@ void avpriv_set_pts_info(AVStream *s, int pts_wrap_bits,
     s->pts_wrap_bits = pts_wrap_bits;
 }
 
-int ff_url_join(char *str, int size, const char *proto,
-                const char *authorization, const char *hostname,
-                int port, const char *fmt, ...)
-{
-#if CONFIG_NETWORK
-    struct addrinfo hints = { 0 }, *ai;
-#endif
-
-    str[0] = '\0';
-    if (proto)
-        av_strlcatf(str, size, "%s://", proto);
-    if (authorization && authorization[0])
-        av_strlcatf(str, size, "%s@", authorization);
-#if CONFIG_NETWORK && defined(AF_INET6)
-    /* Determine if hostname is a numerical IPv6 address,
-     * properly escape it within [] in that case. */
-    hints.ai_flags = AI_NUMERICHOST;
-    if (!getaddrinfo(hostname, NULL, &hints, &ai)) {
-        if (ai->ai_family == AF_INET6) {
-            av_strlcat(str, "[", size);
-            av_strlcat(str, hostname, size);
-            av_strlcat(str, "]", size);
-        } else {
-            av_strlcat(str, hostname, size);
-        }
-        freeaddrinfo(ai);
-    } else
-#endif
-        /* Not an IPv6 address, just output the plain string. */
-        av_strlcat(str, hostname, size);
-
-    if (port >= 0)
-        av_strlcatf(str, size, ":%d", port);
-    if (fmt) {
-        va_list vl;
-        int len = strlen(str);
-
-        va_start(vl, fmt);
-        vsnprintf(str + len, size > len ? size - len : 0, fmt, vl);
-        va_end(vl);
-    }
-    return strlen(str);
-}
-
 void ff_parse_key_value(const char *str, ff_parse_key_val_cb callback_get_buf,
                         void *context)
 {
@@ -3217,75 +3173,6 @@ int ff_find_stream_index(AVFormatContext *s, int id)
     return -1;
 }
 
-void ff_make_absolute_url(char *buf, int size, const char *base,
-                          const char *rel)
-{
-    char *sep, *path_query;
-    /* Absolute path, relative to the current server */
-    if (base && strstr(base, "://") && rel[0] == '/') {
-        if (base != buf)
-            av_strlcpy(buf, base, size);
-        sep = strstr(buf, "://");
-        if (sep) {
-            /* Take scheme from base url */
-            if (rel[1] == '/') {
-                sep[1] = '\0';
-            } else {
-                /* Take scheme and host from base url */
-                sep += 3;
-                sep = strchr(sep, '/');
-                if (sep)
-                    *sep = '\0';
-            }
-        }
-        av_strlcat(buf, rel, size);
-        return;
-    }
-    /* If rel actually is an absolute url, just copy it */
-    if (!base || strstr(rel, "://") || rel[0] == '/') {
-        av_strlcpy(buf, rel, size);
-        return;
-    }
-    if (base != buf)
-        av_strlcpy(buf, base, size);
-
-    /* Strip off any query string from base */
-    path_query = strchr(buf, '?');
-    if (path_query != NULL)
-        *path_query = '\0';
-
-    /* Is relative path just a new query part? */
-    if (rel[0] == '?') {
-        av_strlcat(buf, rel, size);
-        return;
-    }
-
-    /* Remove the file name from the base url */
-    sep = strrchr(buf, '/');
-    if (sep)
-        sep[1] = '\0';
-    else
-        buf[0] = '\0';
-    while (av_strstart(rel, "../", NULL) && sep) {
-        /* Remove the path delimiter at the end */
-        sep[0] = '\0';
-        sep = strrchr(buf, '/');
-        /* If the next directory name to pop off is "..", break here */
-        if (!strcmp(sep ? &sep[1] : buf, "..")) {
-            /* Readd the slash we just removed */
-            av_strlcat(buf, "/", size);
-            break;
-        }
-        /* Cut off the directory name */
-        if (sep)
-            sep[1] = '\0';
-        else
-            buf[0] = '\0';
-        rel += 3;
-    }
-    av_strlcat(buf, rel, size);
-}
-
 int64_t ff_iso8601_to_unix_time(const char *datestr)
 {
 #if HAVE_STRPTIME