1 files changed, 30 insertions, 4 deletions
diff --git a/libavformat/riff.h b/libavformat/riff.h
index 174301264f..d5e1cdf7d8 100644
--- a/libavformat/riff.h
+++ b/libavformat/riff.h
@@ -2,20 +2,20 @@
  * RIFF codec tags
  * copyright (c) 2000 Fabrice Bellard
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -54,4 +54,30 @@ unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum CodecID id);
 enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);
 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
 
+typedef uint8_t ff_asf_guid[16];
+
+#define FF_PRI_GUID \
+    "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
+#define FF_ARG_GUID(g) \
+    g[0],g[1],g[2],g[3],g[4],g[5],g[6],g[7],g[8],g[9],g[10],g[11],g[12],g[13],g[14],g[15]
+
+static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
+{
+    return memcmp(g1, g2, sizeof(ff_asf_guid));
+}
+
+void ff_get_guid(AVIOContext *s, ff_asf_guid *g);
+
+typedef struct {
+    enum CodecID id;
+    ff_asf_guid guid;
+} AVCodecGuid;
+
+enum CodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid);
+
+extern const AVCodecGuid ff_codec_wav_guids[];
+
+#define FF_MEDIASUBTYPE_BASE_GUID \
+    0x00,0x00,0x10,0x00,0x80,0x00,0x00,0xAA,0x00,0x38,0x9B,0x71
+
 #endif /* AVFORMAT_RIFF_H */