cml/libcw
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cwIoAudioMidiApp.cpp : Added call to midiDeviceClearBuffer().

Browse Source 
Added option audio device metering.
This commit is contained in:
kevin 2025-04-19 13:49:19 -04:00
parent 17aaa45edb
commit 6e8bc206a2
1 changed files with 124 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

126
cwIoAudioMidiApp.cpp
View File

@ -47,7 +47,10 @@ namespace cw
kSaveBtnId,
kOpenBtnId,
kFnStringId
kFnStringId,
kMeterPanelId,
kBaseAudioMeterId
};
enum
@ -81,10 +84,21 @@ namespace cw
{ kPanelDivId, kSaveBtnId, "saveBtnId" },
{ kPanelDivId, kOpenBtnId, "openBtnId" },
{ kPanelDivId, kFnStringId, "filenameId" },
{ kPanelDivId, kMeterPanelId, "meterPanelId" }
};
unsigned mapN = sizeof(mapA)/sizeof(mapA[0]);
const double kMeterMinVal = 0.0;
const double kMeterMaxVal = 100.0;
typedef struct audio_meter_str
{
unsigned uuid;
char* title;
} audio_meter_t;
typedef struct app_str
{
@ -101,6 +115,13 @@ namespace cw
const object_t* midi_play_record_cfg;
unsigned audioDevIdx;
unsigned audioInChCnt;
bool activate_meters_fl;
audio_meter_t* meterA;
std::atomic<bool> meterSetupCompleteFl;
} app_t;
rc_t _parseCfg(app_t* app, const object_t* cfg )
@ -111,6 +132,7 @@ namespace cw
"record_dir", app->record_dir,
"record_folder", app->record_folder,
"record_fn_ext", app->record_fn_ext,
"activate_meters_fl", app->activate_meters_fl,
"midi_play_record", app->midi_play_record_cfg)) != kOkRC )
{
rc = cwLogError(kSyntaxErrorRC,"Audio MIDI app configuration parse failed.");
@ -136,6 +158,10 @@ namespace cw
rc_t _free( app_t& app )
{
for(unsigned i=0; i<app.audioInChCnt; ++i)
mem::release(app.meterA[i].title);
mem::release(app.meterA);
mem::release(app.directory);
return kOkRC;
}
@ -360,11 +386,98 @@ namespace cw
return rc;
}
rc_t _get_active_audio_dev_and_ch_count( app_t* app )
{
rc_t rc = kOkRC;
unsigned i = 0;
unsigned n = audioDeviceCount( app->ioH );
for(unsigned i=0; i<n; ++i)
if( audioDeviceIsActive(app->ioH,i) )
{
app->audioDevIdx = i;
app->audioInChCnt = audioDeviceChannelCount(app->ioH,i,io::kInFl);
if((rc = audioDeviceEnableMeters(app->ioH, app->audioDevIdx, io::kInFl | io::kEnableFl )) != kOkRC )
{
rc = cwLogError(rc,"Audio meter enable failed on device index:%i.",app->audioDevIdx);
goto errLabel;
}
cwLogInfo("Active audio device index:%i in chs:%i\n",app->audioDevIdx,app->audioInChCnt);
break;
}
errLabel:
return rc;
}
rc_t _create_audio_meters( app_t* app )
{
rc_t rc = kOkRC;
unsigned meterPanelUuId = uiFindElementUuId( app->ioH, "meterPanelId" );
if( app->audioDevIdx == kInvalidIdx || app->audioInChCnt==0 )
{
cwLogWarning("No meters created. No active input audio device was found.");
goto errLabel;
}
app->meterA = mem::resizeZ(app->meterA,app->audioInChCnt );
for(unsigned i=0; i<app->audioInChCnt; ++i)
{
app->meterA[i].title = mem::printf(app->meterA[i].title,"%i",i);
if((rc = uiCreateProg(app->ioH, app->meterA[i].uuid, meterPanelUuId, nullptr, kBaseAudioMeterId+i, 0, NULL, app->meterA[i].title, kMeterMinVal, kMeterMaxVal )) != kOkRC )
{
cwLogError(rc,"Audio input meter create failed on channel index:%i.",i);
goto errLabel;
}
}
app->meterSetupCompleteFl.store(true);
errLabel:
if(rc != kOkRC )
cwLogError(rc,"Audio meter creation failed.");
return rc;
}
rc_t _on_audio_meters(app_t* app, const io::audio_group_dev_t* agd )
{
rc_t rc = kOkRC;
if( app->activate_meters_fl && app->meterSetupCompleteFl.load() && cwIsFlag(agd->flags,io::kInFl) )
{
unsigned n = std::min(app->audioInChCnt,agd->chCnt);
for(unsigned i=0; i<n; ++i)
{
double db = std::max(0.0, 20.0 * log10(agd->meterA[i]) + 100.0 );
if((rc = io::uiSendValue(app->ioH, app->meterA[i].uuid, db)) != kOkRC )
{
rc = cwLogError(rc,"Audio meter update failed on channel index:%i.",i);
goto errLabel;
}
}
}
errLabel:
return rc;
}
rc_t _onUiInit(app_t* app, const io::ui_msg_t& m )
{
rc_t rc = kOkRC;
if( app->activate_meters_fl)
if((rc = _get_active_audio_dev_and_ch_count(app)) == kOkRC )
_create_audio_meters(app);
return rc;
}
@ -511,12 +624,15 @@ namespace cw
break;
case io::kMidiTId:
// Drop the MIDI messages that were processed on this call.
midiDeviceClearBuffer(app->ioH,m->u.midi->pkt->msgCnt);
break;
case io::kAudioTId:
break;
case io::kAudioMeterTId:
_on_audio_meters(app,m->u.audioGroupDev);
break;
case io::kSockTId:
@ -550,6 +666,10 @@ cw::rc_t cw::audio_midi_app::main( const object_t* cfg )
rc_t rc;
app_t app = {};
app.audioDevIdx = kInvalidIdx;
app.audioInChCnt = 0;
app.meterSetupCompleteFl.store(false);
// Parse the configuration
if((rc = _parseCfg(&app,cfg)) != kOkRC )
goto errLabel;
@ -596,6 +716,8 @@ cw::rc_t cw::audio_midi_app::main( const object_t* cfg )
}
errLabel:
destroy(app.mrpH);
destroy(app.arpH);
_free(app);
io::destroy(app.ioH);
printf("Audio-MIDI Done.\n");