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FMODEx diagnostics.

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SHFMODExStreamBufferSize added. Determines stream buffer size in ms. (stream restart required)
SHFMODExDecodeBufferSize added. Determines decode buffer size in ms. (stream restart required)
Streams will mute themselves if they are starving, until they are free of starvation for 5 full seconds.
Streams that fail to accumulate any buffer progress while starving for 10 full updates will be stopped.
Stream buffer progress(buffer percent) is llinfos spewed every update. (temporary)
Doubled default stream buffer size
Increased default decode buffer size to 1000ms (from 400)
Temporarily using FMOD::Memory_Initialize to display raw stream/decode buffer sizes via llinfos.
Added llwarns messages for SigmaTel hardware or bad audio acceleration configuration.
This commit is contained in:
Shyotl
2012-07-18 21:04:21 -05:00
parent 72d93b8723
commit 5fcdbfdd9e
6 changed files with 126 additions and 6 deletions
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68
indra/llaudio/llstreamingaudio_fmodex.cpp
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@@ -50,7 +50,7 @@ public:
const std::string& getURL() { return mInternetStreamURL; }
FMOD_OPENSTATE getOpenState();
FMOD_OPENSTATE getOpenState(unsigned int* percentbuffered=NULL, bool* starving=NULL, bool* diskbusy=NULL);
protected:
FMOD::System* mSystem;
FMOD::Channel* mStreamChannel;
@@ -70,11 +70,13 @@ LLStreamingAudio_FMODEX::LLStreamingAudio_FMODEX(FMOD::System *system) :
mCurrentInternetStreamp(NULL),
mFMODInternetStreamChannelp(NULL),
mGain(1.0f),
mMetaData(NULL)
mMetaData(NULL),
mStarvedProgress(0),
mStarvedNoProgressFrames(0)
{
// Number of milliseconds of audio to buffer for the audio card.
// Must be larger than the usual Second Life frame stutter time.
const U32 buffer_seconds = 5; //sec
const U32 buffer_seconds = 10; //sec
const U32 estimated_bitrate = 128; //kbit/sec
mSystem->setStreamBufferSize(estimated_bitrate * buffer_seconds * 128/*bytes/kbit*/, FMOD_TIMEUNIT_RAWBYTES);
@@ -145,7 +147,10 @@ void LLStreamingAudio_FMODEX::update()
return;
}
FMOD_OPENSTATE open_state = mCurrentInternetStreamp->getOpenState();
unsigned int progress;
bool starving;
bool diskbusy;
FMOD_OPENSTATE open_state = mCurrentInternetStreamp->getOpenState(&progress, &starving, &diskbusy);
if (open_state == FMOD_OPENSTATE_READY)
{
@@ -158,6 +163,7 @@ void LLStreamingAudio_FMODEX::update()
// Reset volume to previously set volume
setGain(getGain());
mFMODInternetStreamChannelp->setPaused(false);
mLastStarved.stop();
}
}
else if(open_state == FMOD_OPENSTATE_ERROR)
@@ -168,6 +174,7 @@ void LLStreamingAudio_FMODEX::update()
if(mFMODInternetStreamChannelp)
{
llinfos << "progress = " << progress << llendl;
if(!mMetaData)
mMetaData = new LLSD;
@@ -237,12 +244,46 @@ void LLStreamingAudio_FMODEX::update()
}
}
}
if(starving)
{
if(!mLastStarved.getStarted())
{
llinfos << "Stream starvation detected! Muting stream audio until it clears." << llendl;
llinfos << " (diskbusy="<<diskbusy<<")" << llendl;
llinfos << " (progress="<<progress<<")" << llendl;
mFMODInternetStreamChannelp->setMute(true);
mStarvedProgress = progress;
mStarvedNoProgressFrames = 0;
}
else if(mStarvedProgress == progress)
{
if(++mStarvedNoProgressFrames >= 10)
{
//we got 10 consecutive updates of 0 progress made on the stream buffer. It probably stalled.
llinfos << "Stream unable to recover from starvation. Halting." << llendl;
stop();
return;
}
}
else
{
mStarvedNoProgressFrames = 0;
mStarvedProgress = progress;
}
mLastStarved.start();
}
else if(mLastStarved.getStarted() && mLastStarved.getElapsedTimeF32() > 5.f)
{
mLastStarved.stop();
mFMODInternetStreamChannelp->setMute(false);
}
}
}
}
void LLStreamingAudio_FMODEX::stop()
{
mLastStarved.stop();
if(mMetaData)
{
delete mMetaData;
@@ -341,6 +382,11 @@ void LLStreamingAudio_FMODEX::setGain(F32 vol)
if(!mFMODInternetStreamChannelp || !mCurrentInternetStreamp)
return false;
bool muted=false;
mFMODInternetStreamChannelp->getMute(&muted);
if(muted)
return false;
static std::vector<float> local_array(count); //Have to have an extra buffer to mix channels. Bleh.
if(count > (S32)local_array.size()) //Expand the array if needed. Try to minimize allocation calls, so don't ever shrink.
local_array.resize(count);
@@ -442,9 +488,19 @@ bool LLAudioStreamManagerFMODEX::stopStream()
}
}
FMOD_OPENSTATE LLAudioStreamManagerFMODEX::getOpenState()
FMOD_OPENSTATE LLAudioStreamManagerFMODEX::getOpenState(unsigned int* percentbuffered, bool* starving, bool* diskbusy)
{
FMOD_OPENSTATE state;
mInternetStream->getOpenState(&state,NULL,NULL,NULL);
mInternetStream->getOpenState(&state,percentbuffered,starving,diskbusy);
return state;
}
void LLStreamingAudio_FMODEX::setBufferSizes(U32 streambuffertime, U32 decodebuffertime)
{
mSystem->setStreamBufferSize(streambuffertime/1000*128*128, FMOD_TIMEUNIT_RAWBYTES);
FMOD_ADVANCEDSETTINGS settings;
memset(&settings,0,sizeof(settings));
settings.cbsize=sizeof(settings);
settings.defaultDecodeBufferSize = decodebuffertime;//ms
mSystem->setAdvancedSettings(&settings);
}