adding some shit

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@100 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Anthony Minessale 2005-12-09 19:23:04 +00:00
parent c104ba366b
commit bbb07474a7
8 changed files with 928 additions and 140 deletions

View File

@ -251,4 +251,11 @@ struct switch_application_interface {
const struct switch_application_interface *next;
};
struct switch_api_interface {
const char *interface_name;
const char *desc;
switch_status (*function)(char *in, char *out, size_t outlen);
const struct switch_api_interface *next;
};
#endif

View File

@ -78,6 +78,7 @@ typedef typeof(tv.tv_usec) switch_suseconds_t;
#define switch_copy_flags(dest, src, flags) (dest)->flags &= ~(flags); (dest)->flags |= ((src)->flags & (flags))
#define switch_strlen_zero(s) (s && *s != '\0') ? 0 : 1
#define switch_yield(ms) apr_sleep(ms * 10); apr_thread_yield();
#define SWITCH_DECLARE_GLOBAL_STRING_FUNC(fname, vname) static void fname(char *string) { if (vname) {free(vname); vname = NULL;}vname = strdup(string);}
SWITCH_DECLARE(unsigned int) switch_separate_string(char *buf, char delim, char **array, int arraylen);
SWITCH_DECLARE(switch_status) switch_socket_create_pollfd(switch_pollfd_t *poll, switch_socket_t *sock, unsigned int flags, switch_memory_pool *pool);

View File

@ -42,6 +42,8 @@ static const char modname[] = "mod_portaudio";
static switch_memory_pool *module_pool;
static int running = 1;
#define SAMPLE_TYPE paInt16
typedef short SAMPLE;
typedef enum {
TFLAG_IO = (1 << 0),
@ -60,9 +62,12 @@ typedef enum {
static struct {
int debug;
int port;
char *cid_name;
char *cid_num;
char *dialplan;
char *soundcard;
unsigned int flags;
int indev;
int outdev;
} globals;
struct private_object {
@ -73,31 +78,18 @@ struct private_object {
unsigned char databuf[1024];
switch_core_session *session;
switch_caller_profile *caller_profile;
unsigned int codec;
unsigned int codecs;
switch_mutex_t *mutex;
switch_thread_cond_t *cond;
PaError err;
PABLIO_Stream *audio_in;
PABLIO_Stream *audio_out;
int indev;
int outdev;
};
static void set_global_dialplan(char *dialplan)
{
if (globals.dialplan) {
free(globals.dialplan);
globals.dialplan = NULL;
}
globals.dialplan = strdup(dialplan);
}
SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_dialplan, globals.dialplan)
SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_cid_name, globals.cid_name)
SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_cid_num, globals.cid_num)
static void set_global_soundcard(char *soundcard)
{
if (globals.soundcard) {
free(globals.soundcard);
globals.soundcard = NULL;
}
globals.soundcard = strdup(soundcard);
}
static const switch_endpoint_interface channel_endpoint_interface;
static switch_status channel_on_init(switch_core_session *session);
@ -131,10 +123,6 @@ static switch_status channel_on_init(switch_core_session *session)
switch_set_flag(tech_pvt, TFLAG_IO);
switch_mutex_init(&tech_pvt->mutex, SWITCH_MUTEX_NESTED, switch_core_session_get_pool(session));
switch_thread_cond_create(&tech_pvt->cond, switch_core_session_get_pool(session));
switch_mutex_lock(tech_pvt->mutex);
/* Move Channel's State Machine to RING */
switch_channel_set_state(channel, CS_RING);
@ -187,11 +175,13 @@ static switch_status channel_on_hangup(switch_core_session *session)
assert(tech_pvt != NULL);
switch_clear_flag(tech_pvt, TFLAG_IO);
switch_thread_cond_signal(tech_pvt->cond);
switch_core_codec_destroy(&tech_pvt->read_codec);
switch_core_codec_destroy(&tech_pvt->write_codec);
CloseAudioStream(tech_pvt->audio_in);
CloseAudioStream(tech_pvt->audio_out);
switch_console_printf(SWITCH_CHANNEL_CONSOLE, "%s CHANNEL HANGUP\n", switch_channel_get_name(channel));
return SWITCH_STATUS_SUCCESS;
@ -324,35 +314,21 @@ static switch_status channel_read_frame(switch_core_session *session, switch_fra
{
switch_channel *channel = NULL;
struct private_object *tech_pvt = NULL;
int t;
channel = switch_core_session_get_channel(session);
assert(channel != NULL);
tech_pvt = switch_core_session_get_private(session);
assert(tech_pvt != NULL);
if ((t = ReadAudioStream(tech_pvt->audio_in, tech_pvt->read_frame.data, tech_pvt->read_codec.implementation->samples_per_frame))) {
tech_pvt->read_frame.datalen = t * 2;
tech_pvt->read_frame.samples = t;
*frame = &tech_pvt->read_frame;
return SWITCH_STATUS_SUCCESS;
}
for(;;) {
if (switch_test_flag(tech_pvt, TFLAG_IO)) {
switch_thread_cond_wait(tech_pvt->cond, tech_pvt->mutex);
if (!switch_test_flag(tech_pvt, TFLAG_IO)) {
return SWITCH_STATUS_FALSE;
}
while (switch_test_flag(tech_pvt, TFLAG_IO) && !switch_test_flag(tech_pvt, TFLAG_VOICE)) {
switch_yield(1000);
}
if (switch_test_flag(tech_pvt, TFLAG_IO)) {
switch_clear_flag(tech_pvt, TFLAG_VOICE);
if(!tech_pvt->read_frame.datalen) {
continue;
}
*frame = &tech_pvt->read_frame;
return SWITCH_STATUS_SUCCESS;
}
}
break;
}
return SWITCH_STATUS_FALSE;
}
@ -376,7 +352,8 @@ static switch_status channel_write_frame(switch_core_session *session, switch_fr
switch_swap_linear(frame->data, (int)frame->datalen / 2);
}
*/
WriteAudioStream(tech_pvt->audio_out, (short *)frame->data, (int)(frame->datalen / sizeof(SAMPLE)));
//XXX send voice
return SWITCH_STATUS_SUCCESS;
@ -436,6 +413,8 @@ static const switch_loadable_module_interface channel_module_interface = {
static int dump_info(void);
static void make_call(char *dest);
static switch_status load_config(void);
static int get_dev_by_name(char *name, int in);
SWITCH_MOD_DECLARE(switch_status) switch_module_load(const switch_loadable_module_interface **interface, char *filename) {
@ -443,8 +422,9 @@ SWITCH_MOD_DECLARE(switch_status) switch_module_load(const switch_loadable_modul
switch_console_printf(SWITCH_CHANNEL_CONSOLE, "OH OH no pool\n");
return SWITCH_STATUS_TERM;
}
Pa_Initialize();
Pa_Initialize();
load_config();
dump_info();
/* connect my internal structure to the blank pointer passed to me */
*interface = &channel_module_interface;
@ -473,8 +453,22 @@ static switch_status load_config(void)
globals.debug = atoi(val);
} else if (!strcmp(var, "dialplan")) {
set_global_dialplan(val);
} else if (!strcmp(var, "soundcard")) {
set_global_soundcard(val);
} else if (!strcmp(var, "cid_name")) {
set_global_cid_name(val);
} else if (!strcmp(var, "cid_num")) {
set_global_cid_num(val);
} else if (!strcmp(var, "indev")) {
if (*val == '#') {
globals.indev = atoi(val+1);
} else {
globals.indev = get_dev_by_name(val, 1);
}
} else if (!strcmp(var, "outdev")) {
if (*val == '#') {
globals.outdev = atoi(val+1);
} else {
globals.outdev = get_dev_by_name(val, 1);
}
}
}
}
@ -482,96 +476,118 @@ static switch_status load_config(void)
if (!globals.dialplan) {
set_global_dialplan("default");
}
switch_config_close_file(&cfg);
return SWITCH_STATUS_SUCCESS;
}
SWITCH_MOD_DECLARE(switch_status) switch_module_runtime(void)
{
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "sleep\n");
switch_yield(500000);
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "sleep\n");
make_call("1000");
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "sleep\n");
switch_yield(50000);
make_call("8888");
return SWITCH_STATUS_TERM;
}
SWITCH_MOD_DECLARE(switch_status) switch_module_shutdown(void)
{
Pa_Terminate();
Pa_Terminate();
return SWITCH_STATUS_SUCCESS;
}
static int get_dev_by_name(char *name, int in)
{
int i;
int numDevices;
const PaDeviceInfo *pdi;
numDevices = Pa_CountDevices();
static int dump_info(void)
{
int i,j;
int numDevices;
const PaDeviceInfo *pdi;
PaError err;
numDevices = Pa_CountDevices();
if( numDevices < 0 )
{
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "ERROR: Pa_CountDevices returned 0x%x\n", numDevices );
err = numDevices;
goto error;
}
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Number of devices = %d\n", numDevices );
for( i=0; i<numDevices; i++ )
{
pdi = Pa_GetDeviceInfo( i );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "---------------------------------------------- #%d", i );
if( i == Pa_GetDefaultInputDeviceID() ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, " DefaultInput");
if( i == Pa_GetDefaultOutputDeviceID() ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, " DefaultOutput");
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "\nName = %s\n", pdi->name );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Max Inputs = %d", pdi->maxInputChannels );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, ", Max Outputs = %d\n", pdi->maxOutputChannels );
if( pdi->numSampleRates == -1 )
{
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Sample Rate Range = %f to %f\n", pdi->sampleRates[0], pdi->sampleRates[1] );
}
else
{
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Sample Rates =");
for( j=0; j<pdi->numSampleRates; j++ )
{
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, " %8.2f,", pdi->sampleRates[j] );
}
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "\n");
}
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Native Sample Formats = ");
if( pdi->nativeSampleFormats & paInt8 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paInt8, ");
if( pdi->nativeSampleFormats & paUInt8 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paUInt8, ");
if( pdi->nativeSampleFormats & paInt16 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paInt16, ");
if( pdi->nativeSampleFormats & paInt32 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paInt32, ");
if( pdi->nativeSampleFormats & paFloat32 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paFloat32, ");
if( pdi->nativeSampleFormats & paInt24 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paInt24, ");
if( pdi->nativeSampleFormats & paPackedInt24 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paPackedInt24, ");
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "\n");
}
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "----------------------------------------------\n");
return 0;
error:
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "An error occured while using the portaudio stream\n" );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Error number: %d\n", err );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Error message: %s\n", Pa_GetErrorText( err ) );
return err;
}
static void make_call(char *dest)
{
if( numDevices < 0 ) {
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "ERROR: Pa_CountDevices returned 0x%x\n", numDevices );
return -2;
}
for( i=0; i<numDevices; i++ ) {
pdi = Pa_GetDeviceInfo( i );
if(strstr(pdi->name, name)) {
if(in && pdi->maxInputChannels) {
return i;
} else if (!in && pdi->maxOutputChannels) {
return i;
}
}
}
return -1;
}
static int dump_info(void)
{
int i,j;
int numDevices;
const PaDeviceInfo *pdi;
PaError err;
numDevices = Pa_CountDevices();
if( numDevices < 0 )
{
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "ERROR: Pa_CountDevices returned 0x%x\n", numDevices );
err = numDevices;
goto error;
}
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Number of devices = %d\n", numDevices );
for( i=0; i<numDevices; i++ )
{
pdi = Pa_GetDeviceInfo( i );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "---------------------------------------------- #%d", i );
if( i == Pa_GetDefaultInputDeviceID() ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, " DefaultInput");
if( i == Pa_GetDefaultOutputDeviceID() ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, " DefaultOutput");
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "\nName = %s\n", pdi->name );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Max Inputs = %d", pdi->maxInputChannels );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, ", Max Outputs = %d\n", pdi->maxOutputChannels );
if( pdi->numSampleRates == -1 )
{
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Sample Rate Range = %f to %f\n", pdi->sampleRates[0], pdi->sampleRates[1] );
}
else
{
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Sample Rates =");
for( j=0; j<pdi->numSampleRates; j++ )
{
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, " %8.2f,", pdi->sampleRates[j] );
}
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "\n");
}
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Native Sample Formats = ");
if( pdi->nativeSampleFormats & paInt8 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paInt8, ");
if( pdi->nativeSampleFormats & paUInt8 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paUInt8, ");
if( pdi->nativeSampleFormats & paInt16 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paInt16, ");
if( pdi->nativeSampleFormats & paInt32 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paInt32, ");
if( pdi->nativeSampleFormats & paFloat32 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paFloat32, ");
if( pdi->nativeSampleFormats & paInt24 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paInt24, ");
if( pdi->nativeSampleFormats & paPackedInt24 ) switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "paPackedInt24, ");
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "\n");
}
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "----------------------------------------------\n");
return 0;
error:
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "An error occured while using the portaudio stream\n" );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Error number: %d\n", err );
switch_console_printf(SWITCH_CHANNEL_CONSOLE_CLEAN, "Error message: %s\n", Pa_GetErrorText( err ) );
return err;
}
static void make_call(char *dest)
{
switch_core_session *session;
int sample_rate = 8000;
int codec_ms = 20;
switch_console_printf(SWITCH_CHANNEL_CONSOLE, "New Inbound Channel\n");
if ((session = switch_core_session_request(&channel_endpoint_interface, NULL))) {
struct private_object *tech_pvt;
@ -587,11 +603,10 @@ static void make_call(char *dest)
return;
}
if ((tech_pvt->caller_profile = switch_caller_profile_new(session,
globals.dialplan,
"Test This Shit",
"1231231234",
globals.cid_name,
globals.cid_num,
NULL,
NULL,
dest))) {
@ -604,8 +619,8 @@ static void make_call(char *dest)
if (switch_core_codec_init(&tech_pvt->read_codec,
"L16",
0,
0,
sample_rate,
codec_ms,
SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
NULL) != SWITCH_STATUS_SUCCESS) {
switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Can't load codec?\n");
@ -613,8 +628,8 @@ static void make_call(char *dest)
} else {
if (switch_core_codec_init(&tech_pvt->write_codec,
"L16",
0,
0,
sample_rate,
codec_ms,
SWITCH_CODEC_FLAG_ENCODE |SWITCH_CODEC_FLAG_DECODE, NULL) != SWITCH_STATUS_SUCCESS) {
switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Can't load codec?\n");
switch_core_codec_destroy(&tech_pvt->read_codec);
@ -622,9 +637,29 @@ static void make_call(char *dest)
}
}
tech_pvt->read_frame.codec = &tech_pvt->read_codec;
switch_core_session_set_read_codec(tech_pvt->session, &tech_pvt->read_codec);
switch_core_session_set_write_codec(tech_pvt->session, &tech_pvt->write_codec);
switch_channel_set_state(channel, CS_INIT);
switch_core_session_thread_launch(session);
tech_pvt->indev = globals.indev;
tech_pvt->outdev = globals.outdev;
if ((tech_pvt->err = OpenAudioStream( &tech_pvt->audio_in, sample_rate, SAMPLE_TYPE, PABLIO_READ | PABLIO_MONO, tech_pvt->indev, -1)) == paNoError) {
if ((tech_pvt->err = OpenAudioStream(&tech_pvt->audio_out, sample_rate, SAMPLE_TYPE, PABLIO_WRITE | PABLIO_MONO, -1, tech_pvt->outdev)) != paNoError) {
switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Can't open audio out!\n");
CloseAudioStream(tech_pvt->audio_in);
}
} else {
switch_console_printf(SWITCH_CHANNEL_CONSOLE, "Can't open audio in!\n");
}
if (tech_pvt->err == paNoError) {
switch_channel_set_state(channel, CS_INIT);
switch_core_session_thread_launch(session);
} else {
switch_core_codec_destroy(&tech_pvt->read_codec);
switch_core_codec_destroy(&tech_pvt->write_codec);
switch_core_session_destroy(&session);
}
}
}

View File

@ -0,0 +1,327 @@
/*
* $Id: pablio.c,v 1.1.1.1.4.4 2003/03/13 17:28:33 philburk Exp $
* pablio.c
* Portable Audio Blocking Input/Output utility.
*
* Author: Phil Burk, http://www.softsynth.com
*
* This program uses the PortAudio Portable Audio Library.
* For more information see: http://www.audiomulch.com/portaudio/
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* 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.
*
* 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.
*
* 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.
*
*/
/* History:
* PLB021214 - check for valid stream in CloseAudioStream() to prevent hang.
* add timeOutMSec to CloseAudioStream() to prevent hang.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "portaudio.h"
#include "ringbuffer.h"
#include "pablio.h"
#include <string.h>
/************************************************************************/
/******** Constants *****************************************************/
/************************************************************************/
#define FRAMES_PER_BUFFER (256)
/************************************************************************/
/******** Prototypes ****************************************************/
/************************************************************************/
static int blockingIOCallback( void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
PaTimestamp outTime, void *userData );
static PaError PABLIO_InitFIFO( RingBuffer *rbuf, long numFrames, long bytesPerFrame );
static PaError PABLIO_TermFIFO( RingBuffer *rbuf );
/************************************************************************/
/******** Functions *****************************************************/
/************************************************************************/
/* Called from PortAudio.
* Read and write data only if there is room in FIFOs.
*/
static int blockingIOCallback( void *inputBuffer, void *outputBuffer,
unsigned long framesPerBuffer,
PaTimestamp outTime, void *userData )
{
PABLIO_Stream *data = (PABLIO_Stream*)userData;
long numBytes = data->bytesPerFrame * framesPerBuffer;
(void) outTime;
/* This may get called with NULL inputBuffer during initial setup. */
if( inputBuffer != NULL )
{
RingBuffer_Write( &data->inFIFO, inputBuffer, numBytes );
}
if( outputBuffer != NULL )
{
int i;
int numRead = RingBuffer_Read( &data->outFIFO, outputBuffer, numBytes );
/* Zero out remainder of buffer if we run out of data. */
for( i=numRead; i<numBytes; i++ )
{
((char *)outputBuffer)[i] = 0;
}
}
return 0;
}
/* Allocate buffer. */
static PaError PABLIO_InitFIFO( RingBuffer *rbuf, long numFrames, long bytesPerFrame )
{
long numBytes = numFrames * bytesPerFrame;
char *buffer = (char *) malloc( numBytes );
if( buffer == NULL ) return paInsufficientMemory;
memset( buffer, 0, numBytes );
return (PaError) RingBuffer_Init( rbuf, numBytes, buffer );
}
/* Free buffer. */
static PaError PABLIO_TermFIFO( RingBuffer *rbuf )
{
if( rbuf->buffer ) free( rbuf->buffer );
rbuf->buffer = NULL;
return paNoError;
}
/************************************************************
* Write data to ring buffer.
* Will not return until all the data has been written.
*/
long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
{
long bytesWritten;
char *p = (char *) data;
long numBytes = aStream->bytesPerFrame * numFrames;
while( numBytes > 0)
{
bytesWritten = RingBuffer_Write( &aStream->outFIFO, p, numBytes );
numBytes -= bytesWritten;
p += bytesWritten;
if( numBytes > 0) Pa_Sleep(10);
}
return numFrames;
}
/************************************************************
* Read data from ring buffer.
* Will not return until all the data has been read.
*/
long ReadAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
{
long bytesRead;
char *p = (char *) data;
long numBytes = aStream->bytesPerFrame * numFrames;
while( numBytes > 0)
{
bytesRead = RingBuffer_Read( &aStream->inFIFO, p, numBytes );
numBytes -= bytesRead;
p += bytesRead;
if( numBytes > 0) Pa_Sleep(10);
}
return numFrames;
}
/************************************************************
* Return the number of frames that could be written to the stream without
* having to wait.
*/
long GetAudioStreamWriteable( PABLIO_Stream *aStream )
{
int bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
return bytesEmpty / aStream->bytesPerFrame;
}
/************************************************************
* Return the number of frames that are available to be read from the
* stream without having to wait.
*/
long GetAudioStreamReadable( PABLIO_Stream *aStream )
{
int bytesFull = RingBuffer_GetReadAvailable( &aStream->inFIFO );
return bytesFull / aStream->bytesPerFrame;
}
/************************************************************/
static unsigned long RoundUpToNextPowerOf2( unsigned long n )
{
long numBits = 0;
if( ((n-1) & n) == 0) return n; /* Already Power of two. */
while( n > 0 )
{
n= n>>1;
numBits++;
}
return (1<<numBits);
}
/************************************************************
* Opens a PortAudio stream with default characteristics.
* Allocates PABLIO_Stream structure.
*
* flags parameter can be an ORed combination of:
* PABLIO_READ, PABLIO_WRITE, or PABLIO_READ_WRITE,
* and either PABLIO_MONO or PABLIO_STEREO
*/
PaError OpenAudioStream( PABLIO_Stream **rwblPtr, double sampleRate,
PaSampleFormat format, long flags, int indev, int outdev )
{
long bytesPerSample;
long doRead = 0;
long doWrite = 0;
PaError err;
PABLIO_Stream *aStream;
long minNumBuffers;
long numFrames;
/* Allocate PABLIO_Stream structure for caller. */
aStream = (PABLIO_Stream *) malloc( sizeof(PABLIO_Stream) );
if( aStream == NULL ) return paInsufficientMemory;
memset( aStream, 0, sizeof(PABLIO_Stream) );
/* Determine size of a sample. */
bytesPerSample = Pa_GetSampleSize( format );
if( bytesPerSample < 0 )
{
err = (PaError) bytesPerSample;
goto error;
}
aStream->samplesPerFrame = ((flags&PABLIO_MONO) != 0) ? 1 : 2;
aStream->bytesPerFrame = bytesPerSample * aStream->samplesPerFrame;
/* Initialize PortAudio */
err = Pa_Initialize();
if( err != paNoError ) goto error;
/* Warning: numFrames must be larger than amount of data processed per interrupt
* inside PA to prevent glitches. Just to be safe, adjust size upwards.
*/
minNumBuffers = 2 * Pa_GetMinNumBuffers( FRAMES_PER_BUFFER, sampleRate );
numFrames = minNumBuffers * FRAMES_PER_BUFFER;
/* The PortAudio callback runs in a high priority thread. But PABLIO
* runs in a normal foreground thread. So we may have much worse
* latency in PABLIO. So adjust latency to a safe level.
*/
{
const int safeLatencyMSec = 200;
int minLatencyMSec = (int) ((1000 * numFrames) / sampleRate);
if( minLatencyMSec < safeLatencyMSec )
{
numFrames = (int) ((safeLatencyMSec * sampleRate) / 1000);
}
}
numFrames = RoundUpToNextPowerOf2( numFrames );
/* Initialize Ring Buffers */
doRead = ((flags & PABLIO_READ) != 0);
doWrite = ((flags & PABLIO_WRITE) != 0);
if(doRead)
{
err = PABLIO_InitFIFO( &aStream->inFIFO, numFrames, aStream->bytesPerFrame );
if( err != paNoError ) goto error;
}
if(doWrite)
{
long numBytes;
err = PABLIO_InitFIFO( &aStream->outFIFO, numFrames, aStream->bytesPerFrame );
if( err != paNoError ) goto error;
/* Make Write FIFO appear full initially. */
numBytes = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
RingBuffer_AdvanceWriteIndex( &aStream->outFIFO, numBytes );
}
/* Open a PortAudio stream that we will use to communicate with the underlying
* audio drivers. */
err = Pa_OpenStream(
&aStream->stream,
(doRead ? (indev > -1) ? indev : Pa_GetDefaultInputDeviceID() : paNoDevice),
(doRead ? aStream->samplesPerFrame : 0 ),
format,
NULL,
(doWrite ? (outdev > -1) ? outdev : Pa_GetDefaultOutputDeviceID() : paNoDevice),
(doWrite ? aStream->samplesPerFrame : 0 ),
format,
NULL,
sampleRate,
FRAMES_PER_BUFFER,
minNumBuffers,
paClipOff, /* we won't output out of range samples so don't bother clipping them */
blockingIOCallback,
aStream );
if( err != paNoError ) goto error;
err = Pa_StartStream( aStream->stream );
if( err != paNoError ) goto error;
*rwblPtr = aStream;
return paNoError;
error:
CloseAudioStream( aStream );
*rwblPtr = NULL;
return err;
}
/************************************************************/
PaError CloseAudioStream( PABLIO_Stream *aStream )
{
PaError err = paNoError;
int bytesEmpty;
int byteSize = aStream->outFIFO.bufferSize;
if( aStream->stream != NULL ) /* Make sure stream was opened. PLB021214 */
{
/* If we are writing data, make sure we play everything written. */
if( byteSize > 0 )
{
int timeOutMSec = 2000;
bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
while( (bytesEmpty < byteSize) && (timeOutMSec > 0) )
{
Pa_Sleep( 20 );
timeOutMSec -= 20;
bytesEmpty = RingBuffer_GetWriteAvailable( &aStream->outFIFO );
}
}
err = Pa_StopStream( aStream->stream );
if( err != paNoError ) goto error;
err = Pa_CloseStream( aStream->stream );
}
error:
Pa_Terminate();
PABLIO_TermFIFO( &aStream->inFIFO );
PABLIO_TermFIFO( &aStream->outFIFO );
free( aStream );
return err;
}

View File

@ -0,0 +1,109 @@
#ifndef _PABLIO_H
#define _PABLIO_H
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/*
* $Id: pablio.h,v 1.1.1.1 2002/01/22 00:52:53 phil Exp $
* PABLIO.h
* Portable Audio Blocking read/write utility.
*
* Author: Phil Burk, http://www.softsynth.com/portaudio/
*
* Include file for PABLIO, the Portable Audio Blocking I/O Library.
* PABLIO is built on top of PortAudio, the Portable Audio Library.
* For more information see: http://www.audiomulch.com/portaudio/
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* 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.
*
* 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.
*
* 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.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "portaudio.h"
#include "ringbuffer.h"
#include <string.h>
typedef struct
{
RingBuffer inFIFO;
RingBuffer outFIFO;
PortAudioStream *stream;
int bytesPerFrame;
int samplesPerFrame;
}
PABLIO_Stream;
/* Values for flags for OpenAudioStream(). */
#define PABLIO_READ (1<<0)
#define PABLIO_WRITE (1<<1)
#define PABLIO_READ_WRITE (PABLIO_READ|PABLIO_WRITE)
#define PABLIO_MONO (1<<2)
#define PABLIO_STEREO (1<<3)
/************************************************************
* Write data to ring buffer.
* Will not return until all the data has been written.
*/
long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );
/************************************************************
* Read data from ring buffer.
* Will not return until all the data has been read.
*/
long ReadAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );
/************************************************************
* Return the number of frames that could be written to the stream without
* having to wait.
*/
long GetAudioStreamWriteable( PABLIO_Stream *aStream );
/************************************************************
* Return the number of frames that are available to be read from the
* stream without having to wait.
*/
long GetAudioStreamReadable( PABLIO_Stream *aStream );
/************************************************************
* Opens a PortAudio stream with default characteristics.
* Allocates PABLIO_Stream structure.
*
* flags parameter can be an ORed combination of:
* PABLIO_READ, PABLIO_WRITE, or PABLIO_READ_WRITE,
* and either PABLIO_MONO or PABLIO_STEREO
*/
PaError OpenAudioStream( PABLIO_Stream **aStreamPtr, double sampleRate,
PaSampleFormat format, long flags, int indev, int outdev );
PaError CloseAudioStream( PABLIO_Stream *aStream );
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _PABLIO_H */

View File

@ -0,0 +1,199 @@
/*
* $Id: ringbuffer.c,v 1.1.1.1 2002/01/22 00:52:53 phil Exp $
* ringbuffer.c
* Ring Buffer utility..
*
* Author: Phil Burk, http://www.softsynth.com
*
* This program uses the PortAudio Portable Audio Library.
* For more information see: http://www.audiomulch.com/portaudio/
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* 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.
*
* 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.
*
* 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.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "ringbuffer.h"
#include <string.h>
/***************************************************************************
* Initialize FIFO.
* numBytes must be power of 2, returns -1 if not.
*/
long RingBuffer_Init( RingBuffer *rbuf, long numBytes, void *dataPtr )
{
if( ((numBytes-1) & numBytes) != 0) return -1; /* Not Power of two. */
rbuf->bufferSize = numBytes;
rbuf->buffer = (char *)dataPtr;
RingBuffer_Flush( rbuf );
rbuf->bigMask = (numBytes*2)-1;
rbuf->smallMask = (numBytes)-1;
return 0;
}
/***************************************************************************
** Return number of bytes available for reading. */
long RingBuffer_GetReadAvailable( RingBuffer *rbuf )
{
return ( (rbuf->writeIndex - rbuf->readIndex) & rbuf->bigMask );
}
/***************************************************************************
** Return number of bytes available for writing. */
long RingBuffer_GetWriteAvailable( RingBuffer *rbuf )
{
return ( rbuf->bufferSize - RingBuffer_GetReadAvailable(rbuf));
}
/***************************************************************************
** Clear buffer. Should only be called when buffer is NOT being read. */
void RingBuffer_Flush( RingBuffer *rbuf )
{
rbuf->writeIndex = rbuf->readIndex = 0;
}
/***************************************************************************
** Get address of region(s) to which we can write data.
** If the region is contiguous, size2 will be zero.
** If non-contiguous, size2 will be the size of second region.
** Returns room available to be written or numBytes, whichever is smaller.
*/
long RingBuffer_GetWriteRegions( RingBuffer *rbuf, long numBytes,
void **dataPtr1, long *sizePtr1,
void **dataPtr2, long *sizePtr2 )
{
long index;
long available = RingBuffer_GetWriteAvailable( rbuf );
if( numBytes > available ) numBytes = available;
/* Check to see if write is not contiguous. */
index = rbuf->writeIndex & rbuf->smallMask;
if( (index + numBytes) > rbuf->bufferSize )
{
/* Write data in two blocks that wrap the buffer. */
long firstHalf = rbuf->bufferSize - index;
*dataPtr1 = &rbuf->buffer[index];
*sizePtr1 = firstHalf;
*dataPtr2 = &rbuf->buffer[0];
*sizePtr2 = numBytes - firstHalf;
}
else
{
*dataPtr1 = &rbuf->buffer[index];
*sizePtr1 = numBytes;
*dataPtr2 = NULL;
*sizePtr2 = 0;
}
return numBytes;
}
/***************************************************************************
*/
long RingBuffer_AdvanceWriteIndex( RingBuffer *rbuf, long numBytes )
{
return rbuf->writeIndex = (rbuf->writeIndex + numBytes) & rbuf->bigMask;
}
/***************************************************************************
** Get address of region(s) from which we can read data.
** If the region is contiguous, size2 will be zero.
** If non-contiguous, size2 will be the size of second region.
** Returns room available to be written or numBytes, whichever is smaller.
*/
long RingBuffer_GetReadRegions( RingBuffer *rbuf, long numBytes,
void **dataPtr1, long *sizePtr1,
void **dataPtr2, long *sizePtr2 )
{
long index;
long available = RingBuffer_GetReadAvailable( rbuf );
if( numBytes > available ) numBytes = available;
/* Check to see if read is not contiguous. */
index = rbuf->readIndex & rbuf->smallMask;
if( (index + numBytes) > rbuf->bufferSize )
{
/* Write data in two blocks that wrap the buffer. */
long firstHalf = rbuf->bufferSize - index;
*dataPtr1 = &rbuf->buffer[index];
*sizePtr1 = firstHalf;
*dataPtr2 = &rbuf->buffer[0];
*sizePtr2 = numBytes - firstHalf;
}
else
{
*dataPtr1 = &rbuf->buffer[index];
*sizePtr1 = numBytes;
*dataPtr2 = NULL;
*sizePtr2 = 0;
}
return numBytes;
}
/***************************************************************************
*/
long RingBuffer_AdvanceReadIndex( RingBuffer *rbuf, long numBytes )
{
return rbuf->readIndex = (rbuf->readIndex + numBytes) & rbuf->bigMask;
}
/***************************************************************************
** Return bytes written. */
long RingBuffer_Write( RingBuffer *rbuf, void *data, long numBytes )
{
long size1, size2, numWritten;
void *data1, *data2;
numWritten = RingBuffer_GetWriteRegions( rbuf, numBytes, &data1, &size1, &data2, &size2 );
if( size2 > 0 )
{
memcpy( data1, data, size1 );
data = ((char *)data) + size1;
memcpy( data2, data, size2 );
}
else
{
memcpy( data1, data, size1 );
}
RingBuffer_AdvanceWriteIndex( rbuf, numWritten );
return numWritten;
}
/***************************************************************************
** Return bytes read. */
long RingBuffer_Read( RingBuffer *rbuf, void *data, long numBytes )
{
long size1, size2, numRead;
void *data1, *data2;
numRead = RingBuffer_GetReadRegions( rbuf, numBytes, &data1, &size1, &data2, &size2 );
if( size2 > 0 )
{
memcpy( data, data1, size1 );
data = ((char *)data) + size1;
memcpy( data, data2, size2 );
}
else
{
memcpy( data, data1, size1 );
}
RingBuffer_AdvanceReadIndex( rbuf, numRead );
return numRead;
}

View File

@ -0,0 +1,102 @@
#ifndef _RINGBUFFER_H
#define _RINGBUFFER_H
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
/*
* $Id: ringbuffer.h,v 1.1.1.1.4.2 2003/04/28 17:45:34 philburk Exp $
* ringbuffer.h
* Ring Buffer utility..
*
* Author: Phil Burk, http://www.softsynth.com
*
* This program is distributed with the PortAudio Portable Audio Library.
* For more information see: http://www.audiomulch.com/portaudio/
* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
*
* 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.
*
* 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.
*
* 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.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "ringbuffer.h"
#include <string.h>
typedef struct
{
long bufferSize; /* Number of bytes in FIFO. Power of 2. Set by RingBuffer_Init. */
/* These are declared volatile because they are written by a different thread than the reader. */
volatile long writeIndex; /* Index of next writable byte. Set by RingBuffer_AdvanceWriteIndex. */
volatile long readIndex; /* Index of next readable byte. Set by RingBuffer_AdvanceReadIndex. */
long bigMask; /* Used for wrapping indices with extra bit to distinguish full/empty. */
long smallMask; /* Used for fitting indices to buffer. */
char *buffer;
}
RingBuffer;
/*
* Initialize Ring Buffer.
* numBytes must be power of 2, returns -1 if not.
*/
long RingBuffer_Init( RingBuffer *rbuf, long numBytes, void *dataPtr );
/* Clear buffer. Should only be called when buffer is NOT being read. */
void RingBuffer_Flush( RingBuffer *rbuf );
/* Return number of bytes available for writing. */
long RingBuffer_GetWriteAvailable( RingBuffer *rbuf );
/* Return number of bytes available for read. */
long RingBuffer_GetReadAvailable( RingBuffer *rbuf );
/* Return bytes written. */
long RingBuffer_Write( RingBuffer *rbuf, void *data, long numBytes );
/* Return bytes read. */
long RingBuffer_Read( RingBuffer *rbuf, void *data, long numBytes );
/* Get address of region(s) to which we can write data.
** If the region is contiguous, size2 will be zero.
** If non-contiguous, size2 will be the size of second region.
** Returns room available to be written or numBytes, whichever is smaller.
*/
long RingBuffer_GetWriteRegions( RingBuffer *rbuf, long numBytes,
void **dataPtr1, long *sizePtr1,
void **dataPtr2, long *sizePtr2 );
long RingBuffer_AdvanceWriteIndex( RingBuffer *rbuf, long numBytes );
/* Get address of region(s) from which we can read data.
** If the region is contiguous, size2 will be zero.
** If non-contiguous, size2 will be the size of second region.
** Returns room available to be read or numBytes, whichever is smaller.
*/
long RingBuffer_GetReadRegions( RingBuffer *rbuf, long numBytes,
void **dataPtr1, long *sizePtr1,
void **dataPtr2, long *sizePtr2 );
long RingBuffer_AdvanceReadIndex( RingBuffer *rbuf, long numBytes );
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _RINGBUFFER_H */

View File

@ -42,7 +42,7 @@
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="&quot;$(ProjectDir)..\..\src\include&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\..\libs\apr\include&quot;;&quot;$(ProjectDir)..\..\libs\portaudio\pa_common&quot;;&quot;$(ProjectDir)..\..\libs\portaudio\pablio&quot;;&quot;$(ProjectDir)..\..\libs\portaudio\pa_win_wmme&quot;"
AdditionalIncludeDirectories="&quot;$(ProjectDir)..\..\src\include&quot;;&quot;$(ProjectDir)include&quot;;&quot;$(ProjectDir)..\..\libs\apr\include&quot;;&quot;$(ProjectDir)..\..\libs\portaudio\pa_common&quot;;&quot;$(ProjectDir)\..\..\..\src\mod\mod_portaudio&quot;;&quot;$(ProjectDir)..\..\libs\portaudio\pa_win_wmme&quot;"
PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;MOD_EXPORTS"
MinimalRebuild="true"
BasicRuntimeChecks="3"
@ -194,11 +194,11 @@
>
</File>
<File
RelativePath="..\..\libs\portaudio\pablio\pablio.c"
RelativePath="..\..\src\mod\mod_portaudio\pablio.c"
>
</File>
<File
RelativePath="..\..\libs\portaudio\pablio\ringbuffer.c"
RelativePath="..\..\src\mod\mod_portaudio\ringbuffer.c"
>
</File>
</Filter>
@ -207,6 +207,14 @@
Filter="h;hpp;hxx;hm;inl;inc;xsd"
UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
>
<File
RelativePath="..\..\src\mod\mod_portaudio\pablio.h"
>
</File>
<File
RelativePath="..\..\src\mod\mod_portaudio\ringbuffer.h"
>
</File>
</Filter>
<Filter
Name="Resource Files"