On Wed,  6 Feb 2013 14:35:27 +0100, Vladimir Pantelic <vlado...@gmail.com> 
wrote:
> 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);
>  

LGTM

-- 
Anton Khirnov
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