Original ffmpeg commit 61e2e29 by Clément Bœsch.
---
doc/APIchanges | 3 +++
libavutil/avstring.c | 26 ++++++++++++++++++++++++++
libavutil/avstring.h | 10 ++++++++++
libavutil/version.h | 2 +-
4 files changed, 40 insertions(+), 1 deletion(-)
diff --git a/doc/APIchanges b/doc/APIchanges
index d6134f9..f8ce3b0 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,9 @@ libavutil: 2013-12-xx
API changes, most recent first:
+2014-03-xx - xxxxxxx - lavu 53.06.0 - avstring.h
+ Add av_asprintf().
+
2014-xx-xx - xxxxxxx - lavu 53.05.0 - frame.h
Add av_frame_copy() for copying the frame data.
diff --git a/libavutil/avstring.c b/libavutil/avstring.c
index 3ea7be0..a292731 100644
--- a/libavutil/avstring.c
+++ b/libavutil/avstring.c
@@ -108,6 +108,32 @@ size_t av_strlcatf(char *dst, size_t size, const char
*fmt, ...)
return len;
}
+char *av_asprintf(const char *fmt, ...)
+{
+ char *p = NULL;
+ va_list va;
+ int len;
+
+ va_start(va, fmt);
+ len = vsnprintf(NULL, 0, fmt, va);
+ va_end(va);
+ if (len < 0)
+ goto end;
+
+ p = av_malloc(len + 1);
+ if (!p)
+ goto end;
+
+ va_start(va, fmt);
+ len = vsnprintf(p, len + 1, fmt, va);
+ va_end(va);
+ if (len < 0)
+ av_freep(&p);
+
+end:
+ return p;
+}
+
char *av_d2str(double d)
{
char *str = av_malloc(16);
diff --git a/libavutil/avstring.h b/libavutil/avstring.h
index b7d1098..4789cd5 100644
--- a/libavutil/avstring.h
+++ b/libavutil/avstring.h
@@ -131,6 +131,16 @@ size_t av_strlcat(char *dst, const char *src, size_t size);
size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...)
av_printf_format(3, 4);
/**
+ * Print arguments following specified format into a large enough auto
+ * allocated buffer. It is similar to GNU asprintf().
+ * @param fmt printf-compatible format string, specifying how the
+ * following parameters are used.
+ * @return the allocated string
+ * @note You have to free the string yourself with av_free().
+ */
+char *av_asprintf(const char *fmt, ...) av_printf_format(1, 2);
+
+/**
* Convert a number to a av_malloced string.
*/
char *av_d2str(double d);
diff --git a/libavutil/version.h b/libavutil/version.h
index cd0981c..36070b2 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -54,7 +54,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 53
-#define LIBAVUTIL_VERSION_MINOR 5
+#define LIBAVUTIL_VERSION_MINOR 6
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
--
1.9.0
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