libcw/cwIoAudioMidi.cpp

1038 lines
30 KiB
C++

#include "cwCommon.h"
#include "cwLog.h"
#include "cwCommonImpl.h"
#include "cwMem.h"
#include "cwObject.h"
#include "cwFileSys.h"
#include "cwFile.h"
#include "cwTime.h"
#include "cwMidiDecls.h"
#include "cwMidi.h"
#include "cwUiDecls.h"
#include "cwIo.h"
#include "cwIoAudioMidi.h"
#include "cwAudioFile.h"
/*
TODO:
0. Check for leaks with valgrind
1. Add audio recording
2. Add audio metering panel
3. Turn into a reusable component.
*/
namespace cw
{
namespace io
{
namespace audio_midi
{
// Application Id's for UI elements
enum
{
// Resource Based elements
kPanelDivId = 1000,
kQuitBtnId,
kIoReportBtnId,
kReportBtnId,
kRecordCheckId,
kStartBtnId,
kStopBtnId,
kClearBtnId,
kMsgCntId,
kAudioRecordCheckId,
kAudioSecsId,
kSaveBtnId,
kOpenBtnId,
kFnStringId
};
enum
{
kAmMidiTimerId
};
// Application Id's for the resource based UI elements.
ui::appIdMap_t mapA[] =
{
{ ui::kRootAppId, kPanelDivId, "panelDivId" },
{ kPanelDivId, kQuitBtnId, "quitBtnId" },
{ kPanelDivId, kIoReportBtnId, "ioReportBtnId" },
{ kPanelDivId, kReportBtnId, "reportBtnId" },
{ kPanelDivId, kRecordCheckId, "recordCheckId" },
{ kPanelDivId, kAudioRecordCheckId, "audioRecordCheckId" },
{ kPanelDivId, kStartBtnId, "startBtnId" },
{ kPanelDivId, kStopBtnId, "stopBtnId" },
{ kPanelDivId, kClearBtnId, "clearBtnId" },
{ kPanelDivId, kMsgCntId, "msgCntId" },
{ kPanelDivId, kAudioRecordCheckId, "audioRecordCheckId" },
{ kPanelDivId, kAudioSecsId, "audioSecsId" },
{ kPanelDivId, kSaveBtnId, "saveBtnId" },
{ kPanelDivId, kOpenBtnId, "openBtnId" },
{ kPanelDivId, kFnStringId, "filenameId" },
};
unsigned mapN = sizeof(mapA)/sizeof(mapA[0]);
typedef struct am_audio_str
{
time::spec_t timestamp;
unsigned chCnt;
unsigned dspFrameCnt;
struct am_audio_str* link;
sample_t audioBuf[]; // [[ch0:dspFramCnt][ch1:dspFrmCnt]] total: chCnt*dspFrameCnt samples
} am_audio_t;
typedef struct am_midi_msg_str
{
unsigned devIdx;
unsigned portIdx;
time::spec_t timestamp;
uint8_t ch;
uint8_t status;
uint8_t d0;
uint8_t d1;
unsigned microsec;
} am_midi_msg_t;
typedef struct app_str
{
const char* record_dir;
const char* record_fn;
const char* record_fn_ext;
am_midi_msg_t* midiMsgArray;
unsigned midiMsgArrayN;
unsigned midiMsgArrayInIdx;
unsigned midiMsgArrayOutIdx;
unsigned midi_timer_period_micro_sec;
const char* midiOutDevLabel;
const char* midiOutPortLabel;
unsigned midiOutDevIdx;
unsigned midiOutPortIdx;
time::spec_t play_time;
char* filename;
time::spec_t start_time;
unsigned midiFilterCnt;
am_audio_t* audioBeg; // first in a chain of am_audio_t audio buffers
am_audio_t* audioEnd; // last in a chain of am_audio_t audio buffers
am_audio_t* audioFile; // one large audio buffer holding the last loaded audio file
double audioSrate;
bool audioRecordFl;
unsigned audioSmpIdx;
bool recordFl;
bool startedFl;
io::handle_t ioH;
} app_t;
rc_t _parseCfg(app_t* app, const object_t* cfg )
{
rc_t rc = kOkRC;
if((rc = cfg->getv(
"record_dir", app->record_dir,
"record_fn", app->record_fn,
"record_fn_ext", app->record_fn_ext,
"max_midi_msg_count", app->midiMsgArrayN,
"midi_timer_period_micro_sec", app->midi_timer_period_micro_sec,
"midi_out_device", app->midiOutDevLabel,
"midi_out_port", app->midiOutPortLabel)) != kOkRC )
{
rc = cwLogError(kSyntaxErrorRC,"Audio MIDI app configuration parse failed.");
}
// allocate the MIDI msg buffer
app->midiMsgArray = mem::allocZ<am_midi_msg_t>( app->midiMsgArrayN );
// verify that the output directory exists
filesys::makeDir(app->record_dir);
return rc;
}
void _free( app_t& app )
{
mem::release(app.midiMsgArray);
mem::release(app.filename);
}
rc_t _resolve_midi_device_port_index( app_t* app )
{
rc_t rc = kOkRC;
if((app->midiOutDevIdx = io::midiDeviceIndex(app->ioH,app->midiOutDevLabel)) == kInvalidIdx )
{
rc = cwLogError(kInvalidArgRC,"The MIDI output device: '%s' was not found.", cwStringNullGuard(app->midiOutDevLabel) );
}
if((app->midiOutPortIdx = io::midiDevicePortIndex(app->ioH,app->midiOutDevIdx,false,app->midiOutPortLabel)) == kInvalidIdx )
{
rc = cwLogError(kInvalidArgRC,"The MIDI output port: '%s' was not found.", cwStringNullGuard(app->midiOutPortLabel) );
}
return rc;
}
void _set_midi_msg_next_index( app_t* app, unsigned next_idx )
{
app->midiMsgArrayInIdx = next_idx;
io::uiSendValue( app->ioH, uiFindElementUuId(app->ioH,kMsgCntId), app->midiMsgArrayInIdx );
}
void _set_midi_msg_next_play_index(app_t* app, unsigned next_idx)
{
app->midiMsgArrayOutIdx = next_idx;
}
void _on_start_btn( app_t* app )
{
app->startedFl = true;
time::get(app->start_time);
if( app->recordFl )
{
app->midiFilterCnt = 0;
_set_midi_msg_next_index(app, 0 );
}
else
{
_set_midi_msg_next_play_index(app,0);
io::timerStart( app->ioH, io::timerIdToIndex(app->ioH, kAmMidiTimerId) );
time::get(app->play_time);
}
if( app->audioRecordFl )
{
}
else
{
app->audioSmpIdx = 0;
}
}
void _on_stop_btn( app_t* app )
{
app->startedFl = false;
time::spec_t t1;
time::get(t1);
if( app->recordFl )
{
// set the 'microsec' value for each MIDI msg
for(unsigned i=0; i<app->midiMsgArrayInIdx; ++i)
{
app->midiMsgArray[i].microsec = time::elapsedMicros(app->midiMsgArray[0].timestamp,app->midiMsgArray[i].timestamp);
}
cwLogInfo("MIDI messages recorded: %i filtered: %i\n",app->midiMsgArrayInIdx, app->midiFilterCnt );
}
else
{
io::timerStop( app->ioH, io::timerIdToIndex(app->ioH, kAmMidiTimerId) );
}
cwLogInfo("Runtime: %5.2f seconds.", time::elapsedMs(app->start_time,t1)/1000.0 );
}
rc_t _midi_read( app_t* app )
{
rc_t rc = kOkRC;
char* fn = filesys::makeFn( app->record_dir, app->filename, NULL, NULL );
file::handle_t fH;
unsigned n = 0;
if((rc = file::open(fH,fn,file::kReadFl)) != kOkRC )
{
rc = cwLogError(kOpenFailRC,"Unable to locate the file: '%s'.", fn );
goto errLabel;
}
if((rc = file::read(fH,n)) != kOkRC )
{
rc = cwLogError(kReadFailRC,"Header read failed on Audio-MIDI file: '%s'.", fn );
goto errLabel;
}
if( n > app->midiMsgArrayN )
{
cwLogWarning("The count of message in Audio-MIDI file '%s' reduced from %i to %i.", fn, n, app->midiMsgArrayN );
n = app->midiMsgArrayN;
}
if((rc = file::read(fH,app->midiMsgArray,n*sizeof(am_midi_msg_t))) != kOkRC )
{
rc = cwLogError(kReadFailRC,"Data read failed on Audio-MIDI file: '%s'.", fn );
goto errLabel;
}
_set_midi_msg_next_index(app, n );
cwLogInfo("Read %i from '%s'.",n,fn);
errLabel:
mem::release(fn);
return rc;
}
rc_t _midi_write( app_t* app )
{
rc_t rc = kOkRC;
char* fn = nullptr;
file::handle_t fH;
if( app->midiMsgArrayInIdx == 0 )
{
cwLogWarning("Nothing to write.");
return rc;
}
// form the filename
if((fn = filesys::makeVersionedFn( app->record_dir, app->record_fn, app->record_fn_ext, NULL )) == nullptr )
{
rc = cwLogError(kOpFailRC,"Unable to form versioned filename in '%s' with prefix: '%s' and extension: '%s'.",
cwStringNullGuard(app->record_dir),
cwStringNullGuard(app->record_fn),
cwStringNullGuard(app->record_fn_ext));
}
// open the file
if((rc = file::open(fH,fn,file::kWriteFl)) != kOkRC )
{
rc = cwLogError(kOpenFailRC,"Unable to create the file '%s'.",cwStringNullGuard(fn));
goto errLabel;
}
// write the file header
if((rc = write(fH,app->midiMsgArrayInIdx)) != kOkRC )
{
rc = cwLogError(kWriteFailRC,"Header write to '%s' failed.",cwStringNullGuard(fn));
goto errLabel;
}
// write the file data
if((rc = write(fH,app->midiMsgArray,sizeof(am_midi_msg_t)*app->midiMsgArrayInIdx)) != kOkRC )
{
rc = cwLogError(kWriteFailRC,"Data write to '%s' failed.",cwStringNullGuard(fn));
goto errLabel;
}
// update UI msg count
io::uiSendValue( app->ioH, uiFindElementUuId(app->ioH,kMsgCntId), app->midiMsgArrayInIdx );
file::close(fH);
cwLogInfo("Saved %i events to '%s'.", app->midiMsgArrayInIdx, fn );
errLabel:
mem::release(fn);
return rc;
}
void _print_midi_msg( const am_midi_msg_t* mm )
{
printf("%i %i : %10i : %2i 0x%02x 0x%02x 0x%02x\n", mm->devIdx, mm->portIdx, mm->microsec, mm->ch, mm->status, mm->d0, mm->d1 );
}
void _report_midi( app_t* app )
{
for(unsigned i=0; i<app->midiMsgArrayInIdx; ++i)
{
am_midi_msg_t* mm = app->midiMsgArray + i;
_print_midi_msg(mm);
}
}
am_audio_t* _am_audio_alloc( unsigned dspFrameCnt, unsigned chCnt )
{
unsigned sample_byte_cnt = chCnt * dspFrameCnt * sizeof(sample_t);
void* vp = mem::alloc<uint8_t>( sizeof(am_audio_t) + sample_byte_cnt );
am_audio_t* a = (am_audio_t*)vp;
a->chCnt = chCnt;
a->dspFrameCnt = dspFrameCnt;
return a;
}
am_audio_t* _am_audio_from_sample_index( app_t* app, unsigned sample_idx, unsigned& sample_offs_ref )
{
unsigned n = 0;
am_audio_t* a = app->audioBeg;
if( app->audioBeg == nullptr )
return nullptr;
for(; a!=nullptr; a=a->link)
{
if( n < sample_idx )
{
sample_offs_ref = sample_idx - n;
return a;
}
n += a->dspFrameCnt;
}
return nullptr;
}
void _audio_file_buffer( app_t* app, io::audio_msg_t& adst )
{
unsigned sample_offs = 0;
am_audio_t* a = _am_audio_from_sample_index(app, app->audioSmpIdx, sample_offs );
unsigned copy_n_0 = std::min(a->dspFrameCnt - sample_offs, adst.dspFrameCnt );
unsigned chN = std::min(a->chCnt, adst.oBufChCnt );
for(unsigned i=0; i<chN; ++i)
memcpy( adst.oBufArray[i], a->audioBuf + sample_offs, copy_n_0 * sizeof(sample_t));
app->audioSmpIdx += copy_n_0;
if( copy_n_0 < adst.dspFrameCnt )
{
a = _am_audio_from_sample_index(app, app->audioSmpIdx, sample_offs );
unsigned copy_n_1 = std::min(a->dspFrameCnt - sample_offs, adst.dspFrameCnt - copy_n_0 );
for(unsigned i=0; i<chN; ++i)
memcpy( adst.oBufArray[i] + copy_n_0, a->audioBuf + sample_offs, copy_n_1 * sizeof(sample_t));
}
}
void _audio_record( app_t* app, const io::audio_msg_t& asrc )
{
am_audio_t* a = _am_audio_alloc(asrc.dspFrameCnt,asrc.iBufChCnt);
for(unsigned chIdx=0; chIdx<asrc.iBufChCnt; ++chIdx)
memcpy(a->audioBuf + chIdx*asrc.dspFrameCnt, asrc.iBufArray[chIdx], asrc.dspFrameCnt * sizeof(sample_t));
app->audioEnd->link = a; // link the new audio record to the end of the audio sample buffer chain
app->audioEnd = a; // make the new audio record the last ele. of the chain
// if this is the first ele of the chain
if( app->audioBeg == nullptr )
{
app->audioBeg = a;
app->audioSrate = asrc.srate;
}
}
void _audio_play( app_t* app, io::audio_msg_t& adst )
{
if( app->audioFile == nullptr )
return;
if( app->audioSmpIdx >= app->audioFile->dspFrameCnt )
return;
unsigned chCnt = std::min( adst.oBufChCnt, app->audioFile->chCnt );
unsigned copy_n = std::min( adst.dspFrameCnt, app->audioFile->dspFrameCnt - app->audioSmpIdx);
unsigned extra_n = adst.dspFrameCnt - copy_n;
unsigned i;
for(i=0; i<chCnt; ++i)
{
memcpy(adst.oBufArray + i*adst.dspFrameCnt, app->audioFile->audioBuf + i*app->audioFile->dspFrameCnt, copy_n * sizeof(sample_t));
memset(adst.oBufArray + i*adst.dspFrameCnt + copy_n, 0, extra_n * sizeof(sample_t));
}
}
void _audio_through( app_t* app, io::audio_msg_t& m )
{
unsigned chN = std::min(m.iBufChCnt,m.oBufChCnt);
unsigned byteCnt = m.dspFrameCnt * sizeof(sample_t);
// Copy the input to the output
for(unsigned i=0; i<chN; ++i)
if( m.oBufArray[i] != NULL )
{
// the input channel is not disabled
if( m.iBufArray[i] != NULL )
{
for(unsigned j=0; j<m.dspFrameCnt; ++j )
m.oBufArray[i][j] = m.iBufArray[i][j];
}
else
{
// the input channel is disabled but the output is not - so fill the output with zeros
memset(m.oBufArray[i], 0, byteCnt);
}
}
}
rc_t _audio_write_as_wav( app_t* app )
{
rc_t rc = kOkRC;
audiofile::handle_t afH;
char* fn = nullptr;
// if there is no audio to write
if( app->audioBeg == nullptr )
return rc;
// form the filename
if((fn = filesys::makeVersionedFn( app->record_dir, app->record_fn, "wav", NULL )) == nullptr )
{
rc = cwLogError(kOpFailRC,"Unable to form versioned filename in '%s' with prefix: '%s' and extension: '%s'.",
cwStringNullGuard(app->record_dir),
cwStringNullGuard(app->record_fn),
cwStringNullGuard("wav"));
}
// create an audio file
if((rc = audiofile::create( afH, fn, app->audioSrate, 16, app->audioBeg->chCnt )) != kOkRC )
{
cwLogError(rc,"Audio file create failed.");
goto errLabel;
}
// write each buffer
for(am_audio_t* a=app->audioBeg; a!=nullptr; a=a->link)
{
float* chBufArray[ a->chCnt ];
for(unsigned i=0; i<a->chCnt; ++i)
chBufArray[i] = a->audioBuf + (i*a->dspFrameCnt);
if((rc = writeFloat( afH, a->dspFrameCnt, a->chCnt, (const float**)chBufArray )) != kOkRC )
{
cwLogError(rc,"An error occurred while writing and audio buffer.");
goto errLabel;
}
}
errLabel:
// close the audio file
if((rc == audiofile::close(afH)) != kOkRC )
{
cwLogError(rc,"Audio file close failed.");
goto errLabel;
}
mem::free(fn);
return rc;
}
rc_t _audio_write_buffer_times( app_t* app )
{
rc_t rc = kOkRC;
char* fn = nullptr;
am_audio_t* a0 = app->audioBeg;
file::handle_t fH;
// if there is no audio to write
if( app->audioBeg == nullptr )
return rc;
// form the filename
if((fn = filesys::makeVersionedFn( app->record_dir, app->record_fn, "txt", NULL )) == nullptr )
{
rc = cwLogError(kOpFailRC,"Unable to form versioned filename in '%s' with prefix: '%s' and extension: '%s'.",
cwStringNullGuard(app->record_dir),
cwStringNullGuard(app->record_fn),
cwStringNullGuard("wav"));
}
// create the file
if((rc = file::open(fH,fn,file::kWriteFl)) != kOkRC )
{
cwLogError(rc,"Create audio buffer time file failed.");
goto errLabel;
}
file::print(fH,"{ [\n");
// write each buffer
for(am_audio_t* a=app->audioBeg; a!=nullptr; a=a->link)
{
unsigned elapsed_us = time::elapsedMicros( a0->timestamp, a->timestamp );
file::printf(fH,"{ elapsed_us:%i chCnt:%i frameCnt:%i }\n", elapsed_us, a->chCnt, a->dspFrameCnt );
a0 = a;
}
file::print(fH,"] }\n");
// close the file
if((rc = file::close(fH)) != kOkRC )
{
cwLogError(rc,"Close the audio buffer time file.");
goto errLabel;
}
errLabel:
mem::release(fn);
return rc;
}
rc_t _audio_read( app_t* app )
{
rc_t rc = kOkRC;
char* fn = nullptr;
filesys::pathPart_t* pp = nullptr;
audiofile::handle_t afH;
audiofile::info_t af_info;
if((fn = filesys::makeFn( app->record_dir, app->filename, NULL, NULL )) != nullptr )
{
rc = cwLogError(kOpFailRC,"Unable to form the audio file:%s",fn);
goto errLabel;
}
if((pp = filesys::pathParts(fn)) != nullptr )
{
rc = cwLogError(kOpFailRC,"Unable to parse audio file name:%s",fn);
goto errLabel;
}
mem::release(fn);
if((fn = filesys::makeFn( app->record_dir, pp->fnStr, "wav", NULL )) != nullptr )
{
rc = cwLogError(kOpFailRC,"Unable form audio file wav name:%s",fn);
goto errLabel;
}
if((rc = audiofile::open(afH, fn, &af_info)) != kOkRC )
{
rc = cwLogError(kOpFailRC,"Audio file '%s' open failed.",fn);
goto errLabel;
}
if((app->audioFile = _am_audio_alloc(af_info.frameCnt,af_info.chCnt)) != nullptr )
{
rc = cwLogError(kOpFailRC,"Allocate audio buffer (%i samples) failed.",af_info.frameCnt*af_info.chCnt);
goto errLabel;
}
else
{
unsigned audioFrameCnt = 0;
float* chArray[ af_info.chCnt ];
for(unsigned i=0; i<af_info.chCnt; ++i)
chArray[i] = app->audioFile->audioBuf + (i*af_info.frameCnt);
if((rc = audiofile::readFloat(afH, af_info.frameCnt, 0, af_info.chCnt, chArray, &audioFrameCnt)) != kOkRC )
{
rc = cwLogError(kOpFailRC,"Audio file read failed.");
goto errLabel;
}
double audioSecs = (double)af_info.frameCnt / af_info.srate;
io::uiSendValue( app->ioH, uiFindElementUuId(app->ioH,kAudioSecsId), audioSecs );
}
errLabel:
if((rc = audiofile::close(afH)) != kOkRC )
{
rc = cwLogError(kOpFailRC,"Audio file close failed.");
goto errLabel;
}
mem::release(pp);
mem::release(fn);
return rc;
}
rc_t _onUiInit(app_t* app, const ui_msg_t& m )
{
rc_t rc = kOkRC;
return rc;
}
rc_t _onUiValue(app_t* app, const ui_msg_t& m )
{
rc_t rc = kOkRC;
switch( m.appId )
{
case kQuitBtnId:
io::stop( app->ioH );
break;
case kIoReportBtnId:
io::report( app->ioH );
break;
case kReportBtnId:
_report_midi(app);
break;
case kSaveBtnId:
_midi_write(app);
_audio_write_as_wav(app);
_audio_write_buffer_times(app);
break;
case kOpenBtnId:
printf("open btn\n");
_midi_read(app);
_audio_read(app);
break;
case kRecordCheckId:
cwLogInfo("Record:%i",m.value->u.b);
app->recordFl = m.value->u.b;
break;
case kAudioRecordCheckId:
cwLogInfo("Audio Record:%i",m.value->u.b);
app->audioRecordFl = m.value->u.b;
break;
case kStartBtnId:
cwLogInfo("Start");
_on_start_btn(app);
break;
case kStopBtnId:
cwLogInfo("Stop");
_on_stop_btn(app);
break;
case kClearBtnId:
cwLogInfo("Clear");
_set_midi_msg_next_index(app, 0 );
break;
case kFnStringId:
mem::release(app->filename);
app->filename = mem::duplStr(m.value->u.s);
printf("filename:%s\n",app->filename);
break;
}
return rc;
}
rc_t _onUiEcho(app_t* app, const ui_msg_t& m )
{
rc_t rc = kOkRC;
return rc;
}
rc_t uiCb( app_t* app, const ui_msg_t& m )
{
rc_t rc = kOkRC;
switch( m.opId )
{
case ui::kConnectOpId:
cwLogInfo("UI Connected: wsSessId:%i.",m.wsSessId);
break;
case ui::kDisconnectOpId:
cwLogInfo("UI Disconnected: wsSessId:%i.",m.wsSessId);
break;
case ui::kInitOpId:
_onUiInit(app,m);
break;
case ui::kValueOpId:
_onUiValue( app, m );
break;
case ui::kEchoOpId:
_onUiEcho( app, m );
break;
case ui::kIdleOpId:
break;
case ui::kInvalidOpId:
// fall through
default:
assert(0);
break;
}
return rc;
}
rc_t timerCb(app_t* app, timer_msg_t& m)
{
rc_t rc = kOkRC;
// if the MIDI player is started and in 'play' mode and msg remain to be played
if( app->startedFl && (app->recordFl==false) && (app->midiMsgArrayOutIdx < app->midiMsgArrayInIdx))
{
time::spec_t t;
time::get(t);
unsigned cur_time_us = time::elapsedMicros(app->play_time,t);
while( app->midiMsgArray[ app->midiMsgArrayOutIdx ].microsec <= cur_time_us )
{
am_midi_msg_t* mm = app->midiMsgArray + app->midiMsgArrayOutIdx;
//_print_midi_msg(mm);
io::midiDeviceSend( app->ioH, app->midiOutDevIdx, app->midiOutPortIdx, mm->status + mm->ch, mm->d0, mm->d1 );
_set_midi_msg_next_play_index(app, app->midiMsgArrayOutIdx+1 );
// if all MIDI messages have been played
if( app->midiMsgArrayOutIdx >= app->midiMsgArrayInIdx )
{
_on_stop_btn(app);
break;
}
}
}
return rc;
}
bool _midi_filter( const midi::msg_t* mm )
{
//bool drop_fl = (mm->status & 0xf0) == midi::kCtlMdId && (64 <= mm->d0) && (mm->d0 <= 67) && (mm->d1 < 25);
//return drop_fl;
return false;
}
rc_t midiCb( app_t* app, const midi_msg_t& m )
{
rc_t rc = kOkRC;
const midi::packet_t* pkt = m.pkt;
// for each midi msg
for(unsigned j=0; j<pkt->msgCnt; ++j)
{
// if this is a sys-ex msg
if( pkt->msgArray == NULL )
{
// this is a sys ex msg use: pkt->sysExMsg[j]
}
else // this is a triple
{
if( app->recordFl && app->startedFl )
{
// verify that space exists in the record buffer
if( app->midiMsgArrayInIdx >= app->midiMsgArrayN )
{
_on_stop_btn(app);
rc = cwLogError(kBufTooSmallRC,"MIDI message record buffer is full. % messages.",app->midiMsgArrayN);
goto errLabel;
}
else
{
// copy the msg into the record buffer
am_midi_msg_t* am = app->midiMsgArray + app->midiMsgArrayInIdx;
midi::msg_t* mm = pkt->msgArray + j;
if( _midi_filter(mm) )
{
app->midiFilterCnt++;
}
else
{
am->devIdx = pkt->devIdx;
am->portIdx = pkt->portIdx;
am->timestamp = mm->timeStamp;
am->ch = mm->status & 0x0f;
am->status = mm->status & 0xf0;
am->d0 = mm->d0;
am->d1 = mm->d1;
app->midiMsgArrayInIdx += 1;
// send msg count
io::uiSendValue( app->ioH, uiFindElementUuId(app->ioH,kMsgCntId), app->midiMsgArrayInIdx );
}
}
}
}
/*
if( pkt->msgArray == NULL )
printf("io midi cb: 0x%x ",pkt->sysExMsg[j]);
else
{
if( !_midi_filter(pkt->msgArray + j) )
printf("io midi cb: %ld %ld 0x%x %i %i\n", pkt->msgArray[j].timeStamp.tv_sec, pkt->msgArray[j].timeStamp.tv_nsec, pkt->msgArray[j].status, pkt->msgArray[j].d0, pkt->msgArray[j].d1);
}
*/
}
errLabel:
return rc;
}
rc_t audioCb( app_t* app, audio_msg_t& m )
{
rc_t rc = kOkRC;
if( app->startedFl )
{
if( app->audioRecordFl )
{
if( m.iBufChCnt > 0 )
_audio_record(app,m);
if( m.oBufChCnt > 0 )
_audio_play(app,m);
}
}
return rc;
}
// The main application callback
rc_t ioCb( void* arg, const msg_t* m )
{
rc_t rc = kOkRC;
app_t* app = reinterpret_cast<app_t*>(arg);
switch( m->tid )
{
case kTimerTId:
if( m->u.timer != nullptr )
rc = timerCb(app,*m->u.timer);
break;
case kSerialTId:
break;
case kMidiTId:
if( m->u.midi != nullptr )
rc = midiCb(app,*m->u.midi);
break;
case kAudioTId:
if( m->u.audio != nullptr )
rc = audioCb(app,*m->u.audio);
break;
case kAudioMeterTId:
break;
case kSockTId:
break;
case kWebSockTId:
break;
case kUiTId:
rc = uiCb(app,m->u.ui);
break;
default:
assert(0);
}
return rc;
}
}
}
}
cw::rc_t cw::io::audio_midi::main( const object_t* cfg )
{
rc_t rc;
app_t app = {};
bool asyncFl = true;
if((rc = _parseCfg(&app,cfg)) != kOkRC )
goto errLabel;
// create the io framework instance
if((rc = create(app.ioH,cfg,ioCb,&app,mapA,mapN)) != kOkRC )
return rc;
// create the MIDI playback timer
if((rc = timerCreate( app.ioH, "am_timer", kAmMidiTimerId, app.midi_timer_period_micro_sec, asyncFl)) != kOkRC )
{
cwLogError(rc,"Audio-MIDI timer create failed.");
goto errLabel;
}
//report(app.ioH);
// start the io framework instance
if((rc = start(app.ioH)) != kOkRC )
{
rc = cwLogError(rc,"Audio-MIDI app start failed.");
goto errLabel;
}
else
{
// resolve the MIDI out dev/port indexes from the MIDI out dev/port labels
rc_t rc0 = _resolve_midi_device_port_index(&app);
// resolve the audio group index from the lavel
rc_t rc1 = kOkRC;
unsigned devIdx;
if( (devIdx = audioDeviceLabelToIndex(app.ioH, "main")) == kInvalidIdx )
rc1 = cwLogError(kOpFailRC, "Unable to locate the requested audio device.");
if(rcSelect(rc0,rc1) != kOkRC )
goto errLabel;
}
// execute the io framework
while( !isShuttingDown(app.ioH))
{
exec(app.ioH);
sleepMs(50);
}
errLabel:
_free(app);
destroy(app.ioH);
printf("Audio-MIDI Done.\n");
return rc;
}