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-rw-r--r--tderadio3/src/soundformat.cpp270
1 files changed, 0 insertions, 270 deletions
diff --git a/tderadio3/src/soundformat.cpp b/tderadio3/src/soundformat.cpp
deleted file mode 100644
index 57f9aa1..0000000
--- a/tderadio3/src/soundformat.cpp
+++ /dev/null
@@ -1,270 +0,0 @@
-/***************************************************************************
- soundformat.cpp - description
- -------------------
- begin : Sun Aug 1 2004
- copyright : (C) 2004 by Martin Witte
- email : witte@kawo1.rwth-aachen.de
- ***************************************************************************/
-
-/***************************************************************************
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- ***************************************************************************/
-
-#include "include/soundformat.h"
-
-int SoundFormat::sampleSize() const
-{
- if (m_SampleBits <= 8) return 1;
- if (m_SampleBits <= 16) return 2;
- if (m_SampleBits <= 32) return 4;
-
- // unknown
- return -1;
-}
-
-
-int SoundFormat::frameSize() const
-{
- return sampleSize() * m_Channels;
-}
-
-
-int SoundFormat::minValue() const
-{
- if (!m_IsSigned) return 0;
- return -(1 << (m_SampleBits - 1));
-}
-
-
-int SoundFormat::maxValue() const
-{
- return (1 << (m_SampleBits - m_IsSigned)) - 1;
-}
-
-
-void SoundFormat::restoreConfig(const TQString &prefix, TDEConfig *c)
-{
- m_SampleBits = c->readNumEntry (prefix + "bits", 16);
- m_IsSigned = c->readBoolEntry(prefix + "sign", true);
- m_Channels = c->readNumEntry (prefix + "channels", 2);
- m_SampleRate = c->readNumEntry (prefix + "samplerate", 44100);
- bool littleEndian = c->readBoolEntry(prefix + "littleEndian", true);
- m_Endianess = littleEndian ? LITTLE_ENDIAN : BIG_ENDIAN;
- m_Encoding = c->readEntry(prefix + "encoding", "raw");
-}
-
-
-void SoundFormat::saveConfig(const TQString &prefix, TDEConfig *c) const
-{
- c->writeEntry(prefix + "bits", m_SampleBits);
- c->writeEntry(prefix + "sign", m_IsSigned);
- c->writeEntry(prefix + "channels", m_Channels);
- c->writeEntry(prefix + "samplerate", m_SampleRate);
- c->writeEntry(prefix + "littleEndian", m_Endianess == LITTLE_ENDIAN);
- c->writeEntry(prefix + "encoding", m_Encoding);
-}
-
-
-int SoundFormat::convertSampleToInt(const char *sample, bool do_scale) const
-{
- int size = sampleSize();
-
- unsigned val = 0;
- if (m_Endianess == LITTLE_ENDIAN) {
- sample = sample + size - 1;
- for (int i = size - 1; i >= 0; --i, --sample) {
- val = (val << 8) | (unsigned char)*sample;
- }
- } else {
- for (int i = 0; i < size; ++i, ++sample) {
- val = (val << 8) | (unsigned char)*sample;
- }
- }
-
- int scale = (sizeof(unsigned) << 3) - m_SampleBits;
- int signmask = do_scale ? (!m_IsSigned << ((sizeof(unsigned) << 3) - 1)) :
- (-m_IsSigned << ((size << 3) - 1)) ;
- if (do_scale) {
- // map to int number space
- return (val << scale) ^ signmask;
- } else {
- // do only sign extension
- if (val & signmask)
- val |= signmask;
- return val;
- }
-}
-
-
-void SoundFormat::convertIntToSample(int src, char *dst, bool is_scaled) const
-{
- int size = sampleSize();
- int scale = (sizeof(unsigned) * 8) - m_SampleBits;
- int signmask = (!m_IsSigned << (sizeof(unsigned) * 8 - 1));
-
- unsigned val = is_scaled ? (src ^ signmask) >> scale : src;
- if (m_Endianess == LITTLE_ENDIAN) {
- for (int i = 0; i < size; ++i, ++dst) {
- (unsigned char &)*dst = val & 0xFF;
- val >>= 8;
- }
- } else {
- dst = dst - 1 + size;
- for (int i = size - 1; i >= 0; --i, --dst) {
- (unsigned char &)*dst = val & 0xFF;
- val >>= 8;
- }
- }
-}
-
-
-void SoundFormat::convertSamplesToInts(const char *src, int *dst, size_t n, bool do_scale) const
-{
- int size = sampleSize();
- int scale = (sizeof(unsigned) * 8) - m_SampleBits;
- int signmask = do_scale ? (!m_IsSigned << ((sizeof(unsigned) << 3) - 1)) :
- (-m_IsSigned << ((size << 3) - 1)) ;
- if (m_Endianess == LITTLE_ENDIAN) {
- src = src - 1 + (size * n);
- int *end = dst;
- for (dst = dst - 1 + n; dst >= end; --dst) {
- unsigned val = 0;
- for (int i = size - 1; i >= 0; --i, --src) {
- val = (val << 8) | (unsigned char)*src;
- }
- if (do_scale) {
- *dst = (val << scale) ^ signmask;
- } else if (val & signmask) {
- *dst = val | signmask;
- }
- }
- } else {
- for (int *end = dst + n; dst < end; ++dst) {
- unsigned val = 0;
- for (int i = 0; i < size; ++i, ++src) {
- val = (val << 8) | (unsigned char)*src;
- }
- if (do_scale) {
- *dst = (val << scale) ^ signmask;
- } else if (val & signmask) {
- *dst = val | signmask;
- }
- }
- }
-}
-
-
-void SoundFormat::convertIntsToSamples(const int *src, char *dst, size_t n, bool is_scaled) const
-{
- int size = sampleSize();
- int scale = (sizeof(unsigned) * 8) - m_SampleBits;
- int signmask = (!m_IsSigned << (sizeof(unsigned) * 8 - 1));
-
- if (m_Endianess == LITTLE_ENDIAN) {
- for (const int *end = src+n; src < end; ++src) {
- unsigned val = is_scaled ? ((unsigned)(*src ^ signmask)) >> scale : *src;
- for (int i = 0; i < size; ++i, ++dst) {
- (unsigned char &)*dst = val & 0xFF;
- val >>= 8;
- }
- }
- } else {
- dst = dst - 1 + (size * n);
- const int *end = src;
- for (src = src - 1 + n; src >= end; --src) {
- unsigned val = is_scaled ? ((unsigned)(*src ^ signmask)) >> scale : *src;
- for (int i = size - 1; i >= 0; --i, --dst) {
- (unsigned char &)*dst = val & 0xFF;
- val >>= 8;
- }
- }
- }
-}
-
-
-void SoundFormat::convertSamplesToFloat(const char *_src, float **_dst, size_t n) const
-{
- int sample_size = sampleSize();
- int frame_size = frameSize();
- int scale = (sizeof(short) << 3) - m_SampleBits;
- int signmask = !m_IsSigned << ((sizeof(short) << 3) - 1);
- int skip = frame_size - sample_size;
-
- if (m_Endianess == LITTLE_ENDIAN) {
- const char *src_ch0_end = _src + frame_size * (n - 1) + sample_size - 1;
- for (unsigned ch = 0; ch < m_Channels; ++ch) {
- const char *src = src_ch0_end + sample_size * ch;
- float *dst = _dst[ch];
- float *end = dst;
- for (dst = dst - 1 + n; dst >= end; --dst) {
- unsigned val = 0;
- for (int i = sample_size - 1; i >= 0; --i, --src) {
- val = (val << 8) | (unsigned char)*src;
- }
- *dst = (float)(signed short)((val << scale) ^ signmask) / 32768.0f;
- src = src - skip;
- }
- }
- } else {
- for (unsigned ch = 0; ch < m_Channels; ++ch) {
- const char *src = _src + sample_size * ch;
- float *dst = _dst[ch];
- for (float *end = dst + n; dst < end; ++dst) {
- unsigned val = 0;
- for (int i = 0; i < sample_size; ++i, ++src) {
- val = (val << 8) | (unsigned char)*src;
- }
- *dst = (float)(signed short)((val << scale) ^ signmask) / 32768.0f;
- src = src + skip;
- }
- }
- }
-}
-
-
-
-void SoundFormat::convertFloatsToSamples(const float **_src, char *_dst, size_t n) const
-{
- int sample_size = sampleSize();
- int frame_size = frameSize();
- int scale = (sizeof(short) << 3) - m_SampleBits;
- int signmask = (!m_IsSigned << (sizeof(short) << 3) - 1);
- int skip = frame_size - sample_size;
-
- if (m_Endianess == LITTLE_ENDIAN) {
- for (unsigned ch = 0; ch < m_Channels; ++ch) {
- const float *src = _src[ch];
- char *dst = _dst + ch * sample_size;
- for (const float *end = src+n; src < end; ++src) {
- unsigned val = (( ((unsigned)(*src * 32768.0f)) ^ signmask)) >> scale;
- for (int i = 0; i < sample_size; ++i, ++dst) {
- (unsigned char &)*dst = val & 0xFF;
- val >>= 8;
- }
- dst = dst + skip;
- }
- }
- } else {
- char *dst_ch0_end = _dst + frame_size * (n - 1) + sample_size - 1;
- for (unsigned ch = 0; ch < m_Channels; ++ch) {
- char *dst = dst_ch0_end + sample_size * ch;
- const float *src = _src[ch];
- const float *end = src;
- for (src = src - 1 + n; src >= end; --src) {
- unsigned val = (( ((unsigned)(*src * 32768.0f)) ^ signmask)) >> scale;
- for (int i = sample_size - 1; i >= 0; --i, --dst) {
- (unsigned char &)*dst = val & 0xFF;
- val >>= 8;
- }
- dst = dst - skip;
- }
- }
- }
-}
-
-
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