Fix GSM decoding: regular GSM and MSGSM do not use the same

bitstream endianness, so they cannot reuse the same code
without a lot of function call overhead.
Thus use templating to compile two different binaries.

Originally committed as revision 25312 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 28 insertions, 0 deletions

diff --git a/libavcodec/msgsmdec.h b/libavcodec/msgsmdec.h
new file mode 100644
index 0000000..554edbc
--- /dev/null
+++ b/libavcodec/msgsmdec.h
@@ -0,0 +1,28 @@
+/*
+ * gsm 06.10 decoder, Microsoft variant
+ * Copyright (c) 2010 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
+ *
+ * This file is part of FFmpeg.
+ *
+ * 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.
+ *
+ * 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef MSGSMDEC_H
+#define MSGSMDEC_H
+
+int ff_msgsm_decode_block(AVCodecContext *avctx, int16_t *samples,
+                          const uint8_t *buf);
+
+#endif