1 files changed, 36 insertions, 0 deletions
diff --git a/demux/mp3_hdr.h b/demux/mp3_hdr.h
new file mode 100644
index 0000000000..a9b34ac12c
--- /dev/null
+++ b/demux/mp3_hdr.h
@@ -0,0 +1,36 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef MPLAYER_MP3_HDR_H
+#define MPLAYER_MP3_HDR_H
+
+#include <stddef.h>
+
+int mp_get_mp3_header(unsigned char* hbuf,int* chans, int* freq, int* spf, int* mpa_layer, int* br);
+
+#define mp_decode_mp3_header(hbuf)  mp_get_mp3_header(hbuf,NULL,NULL,NULL,NULL,NULL)
+
+static inline int mp_check_mp3_header(unsigned int head){
+    unsigned char tmp[4] = {head >> 24, head >> 16, head >> 8, head};
+    if( (head & 0xffe00000) != 0xffe00000 ||
+        (head & 0x00000c00) == 0x00000c00) return 0;
+    if(mp_decode_mp3_header(tmp)<=0) return 0;
+    return 1;
+}
+
+#endif /* MPLAYER_MP3_HDR_H */