From 9dd9ccbd8d79a7dccd93be0a1e26028ca1d89d42 Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Fri, 10 May 2013 15:04:21 +0200
Subject: [PATCH] audio: add double sample format

To make this easier, get rid of the direct mapping of the
AF_FORMAT_BITS_MASK bit field to number of bytes. This way we can throw
away the unused AF_FORMAT_48BIT and don't have to add ..._56BIT.
---
 audio/fmt-conversion.c |  1 +
 audio/format.c         | 16 +++++-----------
 audio/format.h         |  9 ++++++---
 3 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/audio/fmt-conversion.c b/audio/fmt-conversion.c
index 58943d3b4b..4c1055f118 100644
--- a/audio/fmt-conversion.c
+++ b/audio/fmt-conversion.c
@@ -30,6 +30,7 @@ static const struct {
     {AV_SAMPLE_FMT_S16,   AF_FORMAT_S16_NE},
     {AV_SAMPLE_FMT_S32,   AF_FORMAT_S32_NE},
     {AV_SAMPLE_FMT_FLT,   AF_FORMAT_FLOAT_NE},
+    {AV_SAMPLE_FMT_DBL,   AF_FORMAT_DOUBLE_NE},
 
     {AV_SAMPLE_FMT_NONE,  0},
 };
diff --git a/audio/format.c b/audio/format.c
index 012d24b010..5b1262956c 100644
--- a/audio/format.c
+++ b/audio/format.c
@@ -31,24 +31,15 @@ int af_fmt2bits(int format)
     if (AF_FORMAT_IS_AC3(format)) return 16;
     if (format == AF_FORMAT_UNKNOWN)
         return 0;
-    return (format & AF_FORMAT_BITS_MASK)+8;
-//    return (((format & AF_FORMAT_BITS_MASK)>>3)+1) * 8;
-#if 0
     switch(format & AF_FORMAT_BITS_MASK)
     {
 	case AF_FORMAT_8BIT: return 8;
 	case AF_FORMAT_16BIT: return 16;
 	case AF_FORMAT_24BIT: return 24;
 	case AF_FORMAT_32BIT: return 32;
-	case AF_FORMAT_48BIT: return 48;
+	case AF_FORMAT_64BIT: return 64;
     }
-#endif
-    return -1;
-}
-
-int af_bits2fmt(int bits)
-{
-    return (bits/8 - 1) << 3;
+    return 0;
 }
 
 /* Convert format to str input str is a buffer for the
@@ -96,6 +87,9 @@ const struct af_fmt_entry af_fmtstr_table[] = {
     { "floatle", AF_FORMAT_FLOAT_LE },
     { "floatbe", AF_FORMAT_FLOAT_BE },
     { "floatne", AF_FORMAT_FLOAT_NE },
+    { "doublele", AF_FORMAT_DOUBLE_LE },
+    { "doublebe", AF_FORMAT_DOUBLE_BE },
+    { "doublene", AF_FORMAT_DOUBLE_NE },
 
     {0}
 };
diff --git a/audio/format.h b/audio/format.h
index a8249954f0..30a4aa1cea 100644
--- a/audio/format.h
+++ b/audio/format.h
@@ -53,8 +53,7 @@
 #define AF_FORMAT_16BIT		(1<<3)
 #define AF_FORMAT_24BIT		(2<<3)
 #define AF_FORMAT_32BIT		(3<<3)
-#define AF_FORMAT_40BIT		(4<<3)
-#define AF_FORMAT_48BIT		(5<<3)
+#define AF_FORMAT_64BIT		(4<<3)
 #define AF_FORMAT_BITS_MASK	(7<<3)
 
 // Special flags refering to non pcm data (note: 1<<6, 2<<6, 5<<6 unused)
@@ -85,6 +84,9 @@
 #define AF_FORMAT_FLOAT_LE	(AF_FORMAT_F|AF_FORMAT_32BIT|AF_FORMAT_LE)
 #define AF_FORMAT_FLOAT_BE	(AF_FORMAT_F|AF_FORMAT_32BIT|AF_FORMAT_BE)
 
+#define AF_FORMAT_DOUBLE_LE     (AF_FORMAT_F|AF_FORMAT_64BIT|AF_FORMAT_LE)
+#define AF_FORMAT_DOUBLE_BE     (AF_FORMAT_F|AF_FORMAT_64BIT|AF_FORMAT_BE)
+
 #define AF_FORMAT_AC3_LE	(AF_FORMAT_AC3|AF_FORMAT_16BIT|AF_FORMAT_LE)
 #define AF_FORMAT_AC3_BE	(AF_FORMAT_AC3|AF_FORMAT_16BIT|AF_FORMAT_BE)
 
@@ -99,6 +101,7 @@
 #define AF_FORMAT_U32_NE AF_FORMAT_U32_BE
 #define AF_FORMAT_S32_NE AF_FORMAT_S32_BE
 #define AF_FORMAT_FLOAT_NE AF_FORMAT_FLOAT_BE
+#define AF_FORMAT_DOUBLE_NE AF_FORMAT_DOUBLE_BE
 #define AF_FORMAT_AC3_NE AF_FORMAT_AC3_BE
 #define AF_FORMAT_IEC61937_NE AF_FORMAT_IEC61937_BE
 #else
@@ -109,6 +112,7 @@
 #define AF_FORMAT_U32_NE AF_FORMAT_U32_LE
 #define AF_FORMAT_S32_NE AF_FORMAT_S32_LE
 #define AF_FORMAT_FLOAT_NE AF_FORMAT_FLOAT_LE
+#define AF_FORMAT_DOUBLE_NE AF_FORMAT_DOUBLE_LE
 #define AF_FORMAT_AC3_NE AF_FORMAT_AC3_LE
 #define AF_FORMAT_IEC61937_NE AF_FORMAT_IEC61937_LE
 #endif
@@ -127,7 +131,6 @@ extern const struct af_fmt_entry af_fmtstr_table[];
 
 int af_str2fmt_short(bstr str);
 int af_fmt2bits(int format);
-int af_bits2fmt(int bits);
 char* af_fmt2str(int format, char* str, int size);
 const char* af_fmt2str_short(int format);