summaryrefslogtreecommitdiff
path: root/portaudio/qa/loopback/src/paqa_tools.c
diff options
context:
space:
mode:
Diffstat (limited to 'portaudio/qa/loopback/src/paqa_tools.c')
-rw-r--r--portaudio/qa/loopback/src/paqa_tools.c171
1 files changed, 0 insertions, 171 deletions
diff --git a/portaudio/qa/loopback/src/paqa_tools.c b/portaudio/qa/loopback/src/paqa_tools.c
deleted file mode 100644
index 2e44c63..0000000
--- a/portaudio/qa/loopback/src/paqa_tools.c
+++ /dev/null
@@ -1,171 +0,0 @@
-
-/*
- * PortAudio Portable Real-Time Audio Library
- * Latest Version at: http://www.portaudio.com
- *
- * Copyright (c) 1999-2010 Phil Burk and Ross Bencina
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files
- * (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge,
- * publish, distribute, sublicense, and/or sell copies of the Software,
- * and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
- * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/*
- * The text above constitutes the entire PortAudio license; however,
- * the PortAudio community also makes the following non-binding requests:
- *
- * Any person wishing to distribute modifications to the Software is
- * requested to send the modifications to the original developer so that
- * they can be incorporated into the canonical version. It is also
- * requested that these non-binding requests be included along with the
- * license above.
- */
-
-#include "paqa_tools.h"
-
-
-/*******************************************************************/
-void PaQa_ListAudioDevices(void)
-{
- int i, numDevices;
- const PaDeviceInfo *deviceInfo;
- numDevices = Pa_GetDeviceCount();
- for( i=0; i<numDevices; i++ )
- {
- deviceInfo = Pa_GetDeviceInfo( i );
- printf( "#%d: ", i );
- printf( "%2d in", deviceInfo->maxInputChannels );
- printf( ", %2d out", deviceInfo->maxOutputChannels );
- printf( ", %s", deviceInfo->name );
- printf( ", on %s\n", Pa_GetHostApiInfo( deviceInfo->hostApi )->name );
- }
-}
-
-/*******************************************************************/
-void PaQa_ConvertToFloat( const void *input, int numSamples, PaSampleFormat inFormat, float *output )
-{
- int i;
- switch( inFormat )
- {
- case paUInt8:
- {
- unsigned char *data = (unsigned char *)input;
- for( i=0; i<numSamples; i++ )
- {
- int value = *data++;
- value -= 128;
- *output++ = value / 128.0f;
- }
- }
- break;
-
- case paInt8:
- {
- char *data = (char *)input;
- for( i=0; i<numSamples; i++ )
- {
- int value = *data++;
- *output++ = value / 128.0f;
- }
- }
- break;
-
- case paInt16:
- {
- short *data = (short *)input;
- for( i=0; i<numSamples; i++ )
- {
- *output++ = *data++ / 32768.0f;
- }
- }
- break;
-
- case paInt32:
- {
- int *data = (int *)input;
- for( i=0; i<numSamples; i++ )
- {
- int value = (*data++) >> 8;
- float fval = (float) (value / ((double) 0x00800000));
- *output++ = fval;
- }
- }
- break;
- }
-
-}
-
-/*******************************************************************/
-void PaQa_ConvertFromFloat( const float *input, int numSamples, PaSampleFormat outFormat, void *output )
-{
- int i;
- switch( outFormat )
- {
- case paUInt8:
- {
- unsigned char *data = (unsigned char *)output;
- for( i=0; i<numSamples; i++ )
- {
- float value = *input++;
- int byte = ((int) (value * 127)) + 128;
- *data++ = (unsigned char) byte;
- }
- }
- break;
-
- case paInt8:
- {
- char *data = (char *)output;
- for( i=0; i<numSamples; i++ )
- {
- float value = *input++;
- int byte = (int) (value * 127);
- *data++ = (char) byte;
- }
- }
- break;
-
- case paInt16:
- {
- short *data = (short *)output;
- for( i=0; i<numSamples; i++ )
- {
- float value = *input++;
- // Use asymmetric conversion to avoid clipping.
- short sval = value * 32767.0;
- *data++ = sval;
- }
- }
- break;
-
- case paInt32:
- {
- int *data = (int *)output;
- for( i=0; i<numSamples; i++ )
- {
- float value = *input++;
- // Use asymmetric conversion to avoid clipping.
- int ival = value * ((double) 0x007FFFF0);
- ival = ival << 8;
- *data++ = ival;
- }
- }
- break;
- }
-
-}