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List:       sox-commits
Subject:    [SoX-commits] [git] f064ffb0d5 fix floating point precisions to take account of sign bit
From:       "robs" <robs () users ! sourceforge ! net>
Date:       2012-03-07 21:21:48
Message-ID: E1S5OIx-0003R0-BJ () sfs-ml-4 ! v29 ! ch3 ! sourceforge ! com
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The branch, master has been updated
       via  f064ffb0d54974009c04c0001aa1ac55e02423e3 (commit)
      from  7b31db37bb4ee734cea03d8587a24b428e6d59b8 (commit)

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- Log -----------------------------------------------------------------
commit f064ffb0d54974009c04c0001aa1ac55e02423e3
Author: Rob Sykes <robs@users.sourceforge.net>
Date:   Wed Mar 7 21:21:21 2012 +0000

    fix floating point precisions to take account of sign bit

diff --git a/src/formats.c b/src/formats.c
index 7e231ca..f6de0d2 100644
--- a/src/formats.c
+++ b/src/formats.c
@@ -186,8 +186,8 @@ unsigned sox_precision(sox_encoding_t encoding, unsigned \
bits_per_sample)  case SOX_ENCODING_LPC10:      return !bits_per_sample? 16: 0;
 
     case SOX_ENCODING_WAVPACKF:
-    case SOX_ENCODING_FLOAT:      return bits_per_sample == 32 ? 24: bits_per_sample \
                == 64 ? 53: 0;
-    case SOX_ENCODING_FLOAT_TEXT: return !bits_per_sample? 53: 0;
+    case SOX_ENCODING_FLOAT:      return bits_per_sample == 32 ? 25: bits_per_sample \
== 64 ? 54: 0; +    case SOX_ENCODING_FLOAT_TEXT: return !bits_per_sample? 54: 0;
 
     case SOX_ENCODINGS:
     case SOX_ENCODING_UNKNOWN:    break;
diff --git a/src/sox.h b/src/sox.h
index eb9510e..9fea86b 100644
--- a/src/sox.h
+++ b/src/sox.h
@@ -976,7 +976,8 @@ Converts SoX native sample to a 32-bit float.
 @param d Input sample to be converted.
 @param clips Variable to increment if input sample is too large.
 */
-#define SOX_SAMPLE_TO_FLOAT_32BIT(d,clips) \
(LSX_USE_VAR(sox_macro_temp_double),sox_macro_temp_sample=(d),sox_macro_temp_sample>SO \
X_SAMPLE_MAX-128?++(clips),1:(((sox_macro_temp_sample+128)&~255)*(1./(SOX_SAMPLE_MAX+1.))))
 +#define SOX_SAMPLE_TO_FLOAT_32BIT(d,clips) \
(LSX_USE_VAR(sox_macro_temp_double),sox_macro_temp_sample=(d),sox_macro_temp_sample>SO \
X_SAMPLE_MAX-64?++(clips),1:(((sox_macro_temp_sample+64)&~127)*(1./(SOX_SAMPLE_MAX+1.))))
 +#define SOX_SAMPLE_TO_FLOAT_64BIT(d,clips) ((d)*(1./(SOX_SAMPLE_MAX+1.)))
 
 /**
 Client API:

-----------------------------------------------------------------------

Summary of changes:
 src/formats.c |    4 ++--
 src/sox.h     |    3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)


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