New features:

-- Support for runtime cpu detection
-- Stand alone compile of libaf
-- Unlimited number of channels (compiletime switch)
-- Sample format defined by bit-fields
-- New formats: float, A-Law and mu-law
-- Format conversion set in human readable format
   i.e. format=4:us_be to set 32 bit unsigned big endian output
-- Format reporting in human readable format
-- Volume control has only one parameter for setting the volume
   i.e. volume=-10.0:1:0:1 to set atenuation = -10dB


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8168 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 32 insertions, 0 deletions

diff --git a/libaf/af_format.h b/libaf/af_format.h
new file mode 100644
index 0000000000..77ad43f676
--- /dev/null
+++ b/libaf/af_format.h
@@ -0,0 +1,32 @@
+/* The sample format system used lin libaf is based on bitmasks. The
+   format definition only refers to the storage format not the
+   resolution. */
+
+// Endianess
+#define AF_FORMAT_BE		(0<<0) // Big Endian
+#define AF_FORMAT_LE		(1<<0) // Little Endian
+#define AF_FORMAT_END_MASK	(1<<0)
+
+#if WORDS_BIGENDIAN	       	// Native endian of cpu
+#define	AF_FORMAT_NE		AF_FORMAT_BE
+#else
+#define	AF_FORMAT_NE		AF_FORMAT_LE
+#endif
+
+// Signed/unsigned
+#define AF_FORMAT_SI		(0<<1) // SIgned
+#define AF_FORMAT_US		(1<<1) // Un Signed
+#define AF_FORMAT_SIGN_MASK	(1<<1)
+
+// Fixed of floating point
+#define AF_FORMAT_I		(0<<2) // Int
+#define AF_FORMAT_F		(1<<2) // Foating point
+#define AF_FORMAT_POINT_MASK	(1<<2)
+
+// Special flags refering to non pcm data
+#define AF_FORMAT_MU_LAW	(1<<3) // 
+#define AF_FORMAT_A_LAW		(2<<3) // 
+#define AF_FORMAT_MPEG2		(3<<3) // MPEG(2) audio
+#define AF_FORMAT_AC3		(4<<3) // Dolby Digital AC3
+#define AF_FORMAT_IMA_ADPCM	AF_FORMAT_LE|AF_FORMAT_SI // Same as 16 bit signed int 
+#define AF_FORMAT_SPECIAL_MASK	(7<<3)