Initial revision

CVS patchset: 1
CVS date: 2001/04/18 22:33:39

1 files changed, 46 insertions, 0 deletions

diff --git a/src/libac3/bitstream.h b/src/libac3/bitstream.h
new file mode 100644
index 000000000..392c7401c
--- /dev/null
+++ b/src/libac3/bitstream.h
@@ -0,0 +1,46 @@
+/* 
+ *  bitstream.h
+ *
+ *	Copyright (C) Aaron Holtzman - Dec 1999
+ *
+ *  This file is part of ac3dec, a free AC-3 audio decoder
+ *	
+ *  ac3dec 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, or (at your option)
+ *  any later version.
+ *   
+ *  ac3dec 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 GNU Make; see the file COPYING.  If not, write to
+ *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
+ *
+ */
+
+
+#include <inttypes.h>
+
+extern uint32_t ac3bits_left;
+extern uint64_t ac3current_word;
+
+void bitstream_init(uint8_t *start);
+inline uint32_t bitstream_get_bh(uint32_t num_bits);
+
+static inline uint32_t bitstream_get (uint32_t num_bits)
+{
+	uint32_t result;
+
+	if (num_bits < ac3bits_left) {
+		result = (ac3current_word << (64 - ac3bits_left)) >> (64 - num_bits);
+		ac3bits_left -= num_bits;
+		return result;
+	}
+
+	return bitstream_get_bh (num_bits);
+}
+
+