avio: add a destructor for AVIOContext

[ffmpeg] / libavutil / avstring.c

diff --git a/libavutil/avstring.c b/libavutil/avstring.c
index b77b1605ab2b5ba8e640bfaa4072bdd8f6d9c1ca..bc7d0bcb9820d216ca583c3b7977f3cada76e3f6 100644 (file)
--- a/libavutil/avstring.c
+++ b/libavutil/avstring.c
@@ -2,27 +2,31 @@
  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
  * Copyright (c) 2007 Mans Rullgard
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * 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.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #include <stdarg.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <string.h>
-#include <ctype.h>
+
+#include "config.h"
+#include "common.h"
+#include "mem.h"
 #include "avstring.h"
 
 int av_strstart(const char *str, const char *pfx, const char **ptr)
@@ -38,7 +42,7 @@ int av_strstart(const char *str, const char *pfx, const char **ptr)
 
 int av_stristart(const char *str, const char *pfx, const char **ptr)
 {
-    while (*pfx && toupper((unsigned)*pfx) == toupper((unsigned)*str)) {
+    while (*pfx && av_toupper((unsigned)*pfx) == av_toupper((unsigned)*str)) {
         pfx++;
         str++;
     }
@@ -47,6 +51,33 @@ int av_stristart(const char *str, const char *pfx, const char **ptr)
     return !*pfx;
 }
 
+char *av_stristr(const char *s1, const char *s2)
+{
+    if (!*s2)
+        return s1;
+
+    do
+        if (av_stristart(s1, s2, NULL))
+            return s1;
+    while (*s1++);
+
+    return NULL;
+}
+
+char *av_strnstr(const char *haystack, const char *needle, size_t hay_length)
+{
+    size_t needle_len = strlen(needle);
+    if (!needle_len)
+        return haystack;
+    while (hay_length >= needle_len) {
+        hay_length--;
+        if (!memcmp(haystack, needle, needle_len))
+            return haystack;
+        haystack++;
+    }
+    return NULL;
+}
+
 size_t av_strlcpy(char *dst, const char *src, size_t size)
 {
     size_t len = 0;
@@ -77,8 +108,124 @@ size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...)
     return len;
 }
 
-char *av_d2str(double d){
-    char *str= av_malloc(16);
-    if(str) snprintf(str, 16, "%f", d);
+char *av_d2str(double d)
+{
+    char *str = av_malloc(16);
+    if (str)
+        snprintf(str, 16, "%f", d);
     return str;
 }
+
+#define WHITESPACES " \n\t"
+
+char *av_get_token(const char **buf, const char *term)
+{
+    char *out     = av_malloc(strlen(*buf) + 1);
+    char *ret     = out, *end = out;
+    const char *p = *buf;
+    if (!out)
+        return NULL;
+    p += strspn(p, WHITESPACES);
+
+    while (*p && !strspn(p, term)) {
+        char c = *p++;
+        if (c == '\\' && *p) {
+            *out++ = *p++;
+            end    = out;
+        } else if (c == '\'') {
+            while (*p && *p != '\'')
+                *out++ = *p++;
+            if (*p) {
+                p++;
+                end = out;
+            }
+        } else {
+            *out++ = c;
+        }
+    }
+
+    do
+        *out-- = 0;
+    while (out >= end && strspn(out, WHITESPACES));
+
+    *buf = p;
+
+    return ret;
+}
+
+int av_strcasecmp(const char *a, const char *b)
+{
+    uint8_t c1, c2;
+    do {
+        c1 = av_tolower(*a++);
+        c2 = av_tolower(*b++);
+    } while (c1 && c1 == c2);
+    return c1 - c2;
+}
+
+int av_strncasecmp(const char *a, const char *b, size_t n)
+{
+    const char *end = a + n;
+    uint8_t c1, c2;
+    do {
+        c1 = av_tolower(*a++);
+        c2 = av_tolower(*b++);
+    } while (a < end && c1 && c1 == c2);
+    return c1 - c2;
+}
+
+const char *av_basename(const char *path)
+{
+    char *p = strrchr(path, '/');
+
+#if HAVE_DOS_PATHS
+    char *q = strrchr(path, '\\');
+    char *d = strchr(path, ':');
+
+    p = FFMAX3(p, q, d);
+#endif
+
+    if (!p)
+        return path;
+
+    return p + 1;
+}
+
+const char *av_dirname(char *path)
+{
+    char *p = strrchr(path, '/');
+
+#if HAVE_DOS_PATHS
+    char *q = strrchr(path, '\\');
+    char *d = strchr(path, ':');
+
+    d = d ? d + 1 : d;
+
+    p = FFMAX3(p, q, d);
+#endif
+
+    if (!p)
+        return ".";
+
+    *p = '\0';
+
+    return path;
+}
+
+int av_match_name(const char *name, const char *names)
+{
+    const char *p;
+    int len, namelen;
+
+    if (!name || !names)
+        return 0;
+
+    namelen = strlen(name);
+    while ((p = strchr(names, ','))) {
+        len = FFMAX(p - names, namelen);
+        if (!av_strncasecmp(name, names, len))
+            return 1;
+        names = p + 1;
+    }
+    return !av_strcasecmp(name, names);
+}