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cwAudioDeviceFile.cpp : added comments

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This commit is contained in:
kevin 2023-02-18 14:31:23 -05:00
parent 9ed0bea4d0
commit 4ecbd0d035
1 changed files with 16 additions and 8 deletions
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24
cwAudioDeviceFile.cpp
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@ -844,7 +844,8 @@ cw::rc_t cw::audio::device::file::test( const object_t* cfg)
void* cbArg = &obj;
audiofile::info_t info;
handle_t h;
// parse the test args
if((rc = cfg->getv("inAudioFname",ifname,
"outAudioFname",ofname,
"framesPerCycle",framesPerCycle)) != kOkRC || ifname==nullptr || ofname==nullptr )
@ -853,30 +854,35 @@ cw::rc_t cw::audio::device::file::test( const object_t* cfg)
goto errLabel;
}
// create the audioDeviceFile mgr
if((rc = create(h,driver_ptr)) != kOkRC )
{
rc = cwLogError(rc,"Error creating audio device file mgr.");
goto errLabel;
}
// get input file srate and channel count
if((rc = getInfo( ifname, &info )) != kOkRC )
{
rc = cwLogError(rc,"Error parsing input audio file '%s' header.",cwStringNullGuard(ifname));
goto errLabel;
}
// create an input audio file device
if((rc = createInDevice( h, devLabel, ifname, kRewindOnStartFl )) != kOkRC )
{
rc = cwLogError(rc,"Error creating the audio device file input device from the file:%s.",cwStringNullGuard(ifname));
goto errLabel;
}
// create an output audio file device
if((rc = createOutDevice( h, devLabel, ofname, kRewindOnStartFl, info.chCnt, bitsPerSample )) != kOkRC )
{
rc = cwLogError(rc,"Error creating the audio device file output device from the file:%s.",cwStringNullGuard(ofname));
goto errLabel;
}
// setup the audio device file device
if((rc = deviceSetup( driver_ptr, devIdx, info.srate, framesPerCycle, driverCallback, cbArg, devIdx )) != kOkRC )
{
rc = cwLogError(rc,"Error setting up the audio device file.");
@ -884,19 +890,20 @@ cw::rc_t cw::audio::device::file::test( const object_t* cfg)
}
sleepMicrosec = (framesPerCycle * 1e6) / info.srate;
printf("%i\n",sleepMicrosec);
report(h);
obj.byteCnt = framesPerCycle * info.chCnt * sizeof(sample_t);
obj.buf = mem::allocZ<uint8_t>( obj.byteCnt );
// start the audio device file
if((rc = start(h)) != kOkRC )
{
rc = cwLogError(rc,"Audio device file start failed.");
goto errLabel;
}
// run the audio device file
for(unsigned i=0; i<10; ++i)
{
deviceExecute( driver_ptr, devIdx );
@ -906,13 +913,14 @@ cw::rc_t cw::audio::device::file::test( const object_t* cfg)
errLabel:
mem::release(obj.buf);
// stop the audio device file mgr.
if((rc2 = stop(h)) != kOkRC )
rc2 = cwLogError(rc2,"Audio device file mgr. stop failed.");
// destroy the audio device file mgr
if((rc1 = destroy(h)) != kOkRC )
rc1 = cwLogError(rc1,"Audio device file mgr. destroy failed.");
return rcSelect(rc,rc1,rc2);
return rcSelect(rc,rc1,rc2);
}