in some ASF files this objects holds cover art and other tags. Compared to
Metadata Object it can also hold GUIDs, but we ignore these for now.

Signed-off-by: Vladimir Pantelic <vlado...@gmail.com>
---
 libavformat/asf.c    |    4 ++++
 libavformat/asf.h    |    1 +
 libavformat/asfdec.c |    6 ++++++
 3 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/libavformat/asf.c b/libavformat/asf.c
index eda8bd0..52afa09 100644
--- a/libavformat/asf.c
+++ b/libavformat/asf.c
@@ -109,6 +109,10 @@ const ff_asf_guid ff_asf_metadata_header = {
     0xea, 0xcb, 0xf8, 0xc5, 0xaf, 0x5b, 0x77, 0x48, 0x84, 0x67, 0xaa, 0x8c, 
0x44, 0xfa, 0x4c, 0xca
 };
 
+const ff_asf_guid ff_asf_metadata_library_header = {
+    0x94, 0x1c, 0x23, 0x44, 0x98, 0x94, 0xd1, 0x49, 0xa1, 0x41, 0x1d, 0x13, 
0x4e, 0x45, 0x70, 0x54
+};
+
 const ff_asf_guid ff_asf_marker_header = {
     0x01, 0xCD, 0x87, 0xF4, 0x51, 0xA9, 0xCF, 0x11, 0x8E, 0xE6, 0x00, 0xC0, 
0x0C, 0x20, 0x53, 0x65
 };
diff --git a/libavformat/asf.h b/libavformat/asf.h
index 1d94a2c..3aada8b 100644
--- a/libavformat/asf.h
+++ b/libavformat/asf.h
@@ -103,6 +103,7 @@ extern const ff_asf_guid ff_asf_simple_index_header;
 extern const ff_asf_guid ff_asf_ext_stream_embed_stream_header;
 extern const ff_asf_guid ff_asf_ext_stream_audio_stream;
 extern const ff_asf_guid ff_asf_metadata_header;
+extern const ff_asf_guid ff_asf_metadata_library_header;
 extern const ff_asf_guid ff_asf_marker_header;
 extern const ff_asf_guid ff_asf_my_guid;
 extern const ff_asf_guid ff_asf_language_guid;
diff --git a/libavformat/asfdec.c b/libavformat/asfdec.c
index e85ee8f..51422ea 100644
--- a/libavformat/asfdec.c
+++ b/libavformat/asfdec.c
@@ -136,6 +136,7 @@ static void print_guid(ff_asf_guid *g)
     else PRINT_IF_GUID(g, ff_asf_ext_stream_embed_stream_header);
     else PRINT_IF_GUID(g, ff_asf_ext_stream_audio_stream);
     else PRINT_IF_GUID(g, ff_asf_metadata_header);
+    else PRINT_IF_GUID(g, ff_asf_metadata_library_header);
     else PRINT_IF_GUID(g, ff_asf_marker_header);
     else PRINT_IF_GUID(g, stream_bitrate_guid);
     else PRINT_IF_GUID(g, ff_asf_language_guid);
@@ -296,6 +297,9 @@ static void get_tag(AVFormatContext *s, const char *key, 
int type, int len, int
     } else if (type == 1 && !strcmp(key, "WM/Picture")) { // handle cover art
         asf_read_picture(s, len);
         goto finish;
+    } else if (type == 6) { // (don't) handle GUID
+        av_log(s, AV_LOG_DEBUG, "Unsupported GUID value in tag %s.\n", key);
+        goto finish;
     } else {
         av_log(s, AV_LOG_DEBUG,
                "Unsupported value type %d in tag %s.\n", type, key);
@@ -740,6 +744,8 @@ static int asf_read_header(AVFormatContext *s)
             asf_read_ext_content_desc(s, gsize);
         } else if (!ff_guidcmp(&g, &ff_asf_metadata_header)) {
             asf_read_metadata(s, gsize);
+        } else if (!ff_guidcmp(&g, &ff_asf_metadata_library_header)) {
+            asf_read_metadata(s, gsize);
         } else if (!ff_guidcmp(&g, &ff_asf_ext_stream_header)) {
             asf_read_ext_stream_properties(s, gsize);
 
-- 
1.7.6.1

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