for mp3's, skip all initial frames that aren't layer 3 so we can be sure to

get the correct bitrate for computing the song length

git-svn-id: https://svn.musicpd.org/mpd/trunk@1783 09075e82-0dd4-0310-85a5-a0d7c8717e4f

src/inputPlugins/mp3_plugin.c

@@ -297,6 +297,9 @@ int decodeNextFrameHeader(mp3DecodeData * data, MpdTag ** tag) {
 			}
 		}
 	}
+	if(data->frame.header.layer != MAD_LAYER_III) {
+		return DECODE_SKIP;
+	}
 
 	return DECODE_OK;
 }