Add functions to return library license and library configuration.

Originally committed as revision 20547 to svn://svn.ffmpeg.org/ffmpeg/trunk

2 files changed, 22 insertions, 0 deletions

diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index b7d4cd038a..450a6328c7 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -28,6 +28,17 @@ unsigned avfilter_version(void) {
     return LIBAVFILTER_VERSION_INT;
 }
 
+const char * avfilter_configuration(void)
+{
+    return FFMPEG_CONFIGURATION;
+}
+
+const char * avfilter_license(void)
+{
+#define LICENSE_PREFIX "libavfilter license: "
+    return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
+}
+
 /** helper macros to get the in/out pad on the dst/src filter */
 #define link_dpad(link)     link->dst-> input_pads[link->dstpad]
 #define link_spad(link)     link->src->output_pads[link->srcpad]
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index a2654bb1ae..52d942c42a 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -44,6 +44,17 @@
  */
 unsigned avfilter_version(void);
 
+/**
+ * Returns the libavfilter build-time configuration.
+ */
+const char * avfilter_configuration(void);
+
+/**
+ * Returns the libavfilter license.
+ */
+const char * avfilter_license(void);
+
+
 typedef struct AVFilterContext AVFilterContext;
 typedef struct AVFilterLink    AVFilterLink;
 typedef struct AVFilterPad     AVFilterPad;