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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /noatun/library/conversion.cpp
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'noatun/library/conversion.cpp')
-rw-r--r--noatun/library/conversion.cpp149
1 files changed, 149 insertions, 0 deletions
diff --git a/noatun/library/conversion.cpp b/noatun/library/conversion.cpp
new file mode 100644
index 00000000..791b5554
--- /dev/null
+++ b/noatun/library/conversion.cpp
@@ -0,0 +1,149 @@
+#include "noatun/conversion.h"
+
+// inherit the aRts routines
+#include <convert.h>
+
+#include <config.h>
+#include <limits.h>
+
+namespace Conversion
+{
+
+void convertMono8ToFloat(unsigned long samples, unsigned char *from, float *to)
+{
+ Arts::convert_mono_8_float(samples, from, to);
+}
+
+void interpolateMono8ToFloat(unsigned long samples, double start, double speed,
+ unsigned char *from, float *to)
+{
+ Arts::interpolate_mono_8_float(samples, start, speed, from, to);
+}
+
+void convertMono16leToFloat(unsigned long samples, unsigned char *from, float *to)
+{
+ Arts::convert_mono_16le_float(samples, from, to);
+}
+
+void interpolateMono16leToFloat(unsigned long samples, double startpos, double speed,
+ unsigned char *from, float *to)
+{
+ Arts::interpolate_mono_16le_float(samples, startpos, speed, from, to);
+}
+
+void convertStereoI8To2Float(unsigned long samples, unsigned char *from,
+ float *left, float *right)
+{
+ Arts::convert_stereo_i8_2float(samples, from, left, right);
+}
+
+
+void interpolateStereoI8To2Float(unsigned long samples, double startpos, double speed,
+ unsigned char *from, float *left, float *right)
+{
+ Arts::interpolate_stereo_i8_2float(samples, startpos, speed, from, left, right);
+}
+
+void convertStereoI16leTo2Float(unsigned long samples, unsigned char *from, float *left,
+ float *right)
+{
+ Arts::convert_stereo_i16le_2float(samples, from, left, right);
+}
+
+void interpolateStereoI16leTo2Float(unsigned long samples, double startpos, double speed,
+ unsigned char *from, float *left, float *right)
+{
+ Arts::interpolate_stereo_i16le_2float(samples, startpos, speed, from, left, right);
+}
+
+void interpolateMonoFloatToFloat(unsigned long samples, double startpos, double speed,
+ float *from, float *to)
+{
+ Arts::interpolate_mono_float_float( samples, startpos, speed, from, to);
+}
+
+void convertStereoIFloatTo2Float(unsigned long samples, float *from, float *left,
+ float *right)
+{
+ Arts::convert_stereo_ifloat_2float(samples, from, left, right);
+}
+
+void interpolateStereoIFloatTo2Float(unsigned long samples, double startpos,
+ double speed, float *from, float *left,
+ float *right)
+{
+ Arts::interpolate_stereo_ifloat_2float(samples, startpos, speed, from, left, right);
+}
+
+void convertMonoFloatTo16le(unsigned long samples, float *from, unsigned char *to)
+{
+ Arts::convert_mono_float_16le(samples, from, to);
+}
+
+void convertStereo2FloatToI16le(unsigned long samples, float *left, float *right,
+ unsigned char *to)
+{
+ Arts::convert_stereo_2float_i16le(samples, left, right, to);
+}
+
+void convertMonoFloatTo8(unsigned long samples, float *from, unsigned char *to)
+{
+ Arts::convert_mono_float_8(samples, from, to);
+}
+
+void convertStereo2FloatToI8(unsigned long samples, float *left, float *right,
+ unsigned char *to)
+{
+ Arts::convert_stereo_2float_i8(samples, left, right, to);
+}
+
+inline void toLittleEndian(unsigned long length, char *buffer)
+{
+#ifdef WORDS_BIGENDIAN
+ swapEndian(length, buffer);
+#else
+ (void)length;
+ (void)buffer;
+#endif
+}
+
+inline void toBigEndian(unsigned long length, char *buffer)
+{
+#ifndef WORDS_BIGENDIAN
+ swapEndian(length, buffer);
+#else
+ (void)length;
+ (void)buffer;
+#endif
+}
+
+void swapEndian(unsigned long length, char *buffer)
+{
+ // if you use a little-endian non intel box, and the ASM
+ // version doesn't work, it's safe to use the C version
+#ifdef __i386__
+ __asm__(
+ "shrl $1,%0\n"
+ "jz .l2\n"
+ ".l1:\n"
+ "rolw $8,(%1)\n"
+ "incl %1\n"
+ "incl %1\n"
+ "decl %0\n"
+ "jnz .l1\n"
+ ".l2:\n"
+ : : "r" (length), "r" (buffer));
+#else
+ while (length--)
+ {
+ register char c=*(buffer+1);
+ *(buffer+1)=*buffer;
+ *(buffer)=c;
+ buffer++; buffer++;
+ --length;
+ }
+#endif
+}
+
+}
+