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diff --git a/indra/llaudio/llstreamingaudio_fmod.cpp b/indra/llaudio/llstreamingaudio_fmod.cpp
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+/**
+ * @file streamingaudio_fmod.cpp
+ * @brief LLStreamingAudio_FMOD implementation
+ *
+ * $LicenseInfo:firstyear=2009&license=viewergpl$
+ *
+ * Copyright (c) 2009, Linden Research, Inc.
+ *
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab. Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ *
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ *
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ *
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "llmath.h"
+
+#include "fmod.h"
+#include "fmod_errors.h"
+
+#include "llstreamingaudio_fmod.h"
+
+
+class LLAudioStreamManagerFMOD
+{
+public:
+ LLAudioStreamManagerFMOD(const std::string& url);
+ int startStream();
+ bool stopStream(); // Returns true if the stream was successfully stopped.
+ bool ready();
+
+ const std::string& getURL() { return mInternetStreamURL; }
+
+ int getOpenState();
+protected:
+ FSOUND_STREAM* mInternetStream;
+ bool mReady;
+
+ std::string mInternetStreamURL;
+};
+
+
+
+//---------------------------------------------------------------------------
+// Internet Streaming
+//---------------------------------------------------------------------------
+LLStreamingAudio_FMOD::LLStreamingAudio_FMOD() :
+ mCurrentInternetStreamp(NULL),
+ mFMODInternetStreamChannel(-1),
+ mGain(1.0f)
+{
+ // Number of milliseconds of audio to buffer for the audio card.
+ // Must be larger than the usual Second Life frame stutter time.
+ FSOUND_Stream_SetBufferSize(200);
+
+ // Here's where we set the size of the network buffer and some buffering
+ // parameters. In this case we want a network buffer of 16k, we want it
+ // to prebuffer 40% of that when we first connect, and we want it
+ // to rebuffer 80% of that whenever we encounter a buffer underrun.
+
+ // Leave the net buffer properties at the default.
+ //FSOUND_Stream_Net_SetBufferProperties(20000, 40, 80);
+}
+
+
+LLStreamingAudio_FMOD::~LLStreamingAudio_FMOD()
+{
+ // nothing interesting/safe to do.
+}
+
+
+void LLStreamingAudio_FMOD::start(const std::string& url)
+{
+ //if (!mInited)
+ //{
+ // llwarns << "startInternetStream before audio initialized" << llendl;
+ // return;
+ //}
+
+ // "stop" stream but don't clear url, etc. in case url == mInternetStreamURL
+ stop();
+
+ if (!url.empty())
+ {
+ llinfos << "Starting internet stream: " << url << llendl;
+ mCurrentInternetStreamp = new LLAudioStreamManagerFMOD(url);
+ mURL = url;
+ }
+ else
+ {
+ llinfos << "Set internet stream to null" << llendl;
+ mURL.clear();
+ }
+}
+
+
+void LLStreamingAudio_FMOD::update()
+{
+ // Kill dead internet streams, if possible
+ std::list<LLAudioStreamManagerFMOD *>::iterator iter;
+ for (iter = mDeadStreams.begin(); iter != mDeadStreams.end();)
+ {
+ LLAudioStreamManagerFMOD *streamp = *iter;
+ if (streamp->stopStream())
+ {
+ llinfos << "Closed dead stream" << llendl;
+ delete streamp;
+ mDeadStreams.erase(iter++);
+ }
+ else
+ {
+ iter++;
+ }
+ }
+
+ // Don't do anything if there are no streams playing
+ if (!mCurrentInternetStreamp)
+ {
+ return;
+ }
+
+ int open_state = mCurrentInternetStreamp->getOpenState();
+
+ if (!open_state)
+ {
+ // Stream is live
+
+ // start the stream if it's ready
+ if (mFMODInternetStreamChannel < 0)
+ {
+ mFMODInternetStreamChannel = mCurrentInternetStreamp->startStream();
+
+ if (mFMODInternetStreamChannel != -1)
+ {
+ // Reset volume to previously set volume
+ setGain(getGain());
+ FSOUND_SetPaused(mFMODInternetStreamChannel, false);
+ }
+ }
+ }
+
+ switch(open_state)
+ {
+ default:
+ case 0:
+ // success
+ break;
+ case -1:
+ // stream handle is invalid
+ llwarns << "InternetStream - invalid handle" << llendl;
+ stop();
+ return;
+ case -2:
+ // opening
+ break;
+ case -3:
+ // failed to open, file not found, perhaps
+ llwarns << "InternetSteam - failed to open" << llendl;
+ stop();
+ return;
+ case -4:
+ // connecting
+ break;
+ case -5:
+ // buffering
+ break;
+ }
+
+}
+
+void LLStreamingAudio_FMOD::stop()
+{
+ if (mFMODInternetStreamChannel != -1)
+ {
+ FSOUND_SetPaused(mFMODInternetStreamChannel, true);
+ FSOUND_SetPriority(mFMODInternetStreamChannel, 0);
+ mFMODInternetStreamChannel = -1;
+ }
+
+ if (mCurrentInternetStreamp)
+ {
+ llinfos << "Stopping internet stream: " << mCurrentInternetStreamp->getURL() << llendl;
+ if (mCurrentInternetStreamp->stopStream())
+ {
+ delete mCurrentInternetStreamp;
+ }
+ else
+ {
+ llwarns << "Pushing stream to dead list: " << mCurrentInternetStreamp->getURL() << llendl;
+ mDeadStreams.push_back(mCurrentInternetStreamp);
+ }
+ mCurrentInternetStreamp = NULL;
+ //mURL.clear();
+ }
+}
+
+void LLStreamingAudio_FMOD::pause(int pauseopt)
+{
+ if (pauseopt < 0)
+ {
+ pauseopt = mCurrentInternetStreamp ? 1 : 0;
+ }
+
+ if (pauseopt)
+ {
+ if (mCurrentInternetStreamp)
+ {
+ stop();
+ }
+ }
+ else
+ {
+ start(getURL());
+ }
+}
+
+
+// A stream is "playing" if it has been requested to start. That
+// doesn't necessarily mean audio is coming out of the speakers.
+int LLStreamingAudio_FMOD::isPlaying()
+{
+ if (mCurrentInternetStreamp)
+ {
+ return 1; // Active and playing
+ }
+ else if (!mURL.empty())
+ {
+ return 2; // "Paused"
+ }
+ else
+ {
+ return 0;
+ }
+}
+
+
+F32 LLStreamingAudio_FMOD::getGain()
+{
+ return mGain;
+}
+
+
+std::string LLStreamingAudio_FMOD::getURL()
+{
+ return mURL;
+}
+
+
+void LLStreamingAudio_FMOD::setGain(F32 vol)
+{
+ mGain = vol;
+
+ if (mFMODInternetStreamChannel != -1)
+ {
+ vol = llclamp(vol, 0.f, 1.f);
+ int vol_int = llround(vol * 255.f);
+ FSOUND_SetVolumeAbsolute(mFMODInternetStreamChannel, vol_int);
+ }
+}
+
+
+///////////////////////////////////////////////////////
+// manager of possibly-multiple internet audio streams
+
+LLAudioStreamManagerFMOD::LLAudioStreamManagerFMOD(const std::string& url) :
+ mInternetStream(NULL),
+ mReady(false)
+{
+ mInternetStreamURL = url;
+ mInternetStream = FSOUND_Stream_Open(url.c_str(), FSOUND_NORMAL | FSOUND_NONBLOCKING, 0, 0);
+ if (!mInternetStream)
+ {
+ llwarns << "Couldn't open fmod stream, error "
+ << FMOD_ErrorString(FSOUND_GetError())
+ << llendl;
+ mReady = false;
+ return;
+ }
+
+ mReady = true;
+}
+
+int LLAudioStreamManagerFMOD::startStream()
+{
+ // We need a live and opened stream before we try and play it.
+ if (!mInternetStream || getOpenState())
+ {
+ llwarns << "No internet stream to start playing!" << llendl;
+ return -1;
+ }
+
+ // Make sure the stream is set to 2D mode.
+ FSOUND_Stream_SetMode(mInternetStream, FSOUND_2D);
+
+ return FSOUND_Stream_PlayEx(FSOUND_FREE, mInternetStream, NULL, true);
+}
+
+bool LLAudioStreamManagerFMOD::stopStream()
+{
+ if (mInternetStream)
+ {
+ int read_percent = 0;
+ int status = 0;
+ int bitrate = 0;
+ unsigned int flags = 0x0;
+ FSOUND_Stream_Net_GetStatus(mInternetStream, &status, &read_percent, &bitrate, &flags);
+
+ bool close = true;
+ switch (status)
+ {
+ case FSOUND_STREAM_NET_CONNECTING:
+ close = false;
+ break;
+ case FSOUND_STREAM_NET_NOTCONNECTED:
+ case FSOUND_STREAM_NET_BUFFERING:
+ case FSOUND_STREAM_NET_READY:
+ case FSOUND_STREAM_NET_ERROR:
+ default:
+ close = true;
+ }
+
+ if (close)
+ {
+ FSOUND_Stream_Close(mInternetStream);
+ mInternetStream = NULL;
+ return true;
+ }
+ else
+ {
+ return false;
+ }
+ }
+ else
+ {
+ return true;
+ }
+}
+
+int LLAudioStreamManagerFMOD::getOpenState()
+{
+ int open_state = FSOUND_Stream_GetOpenState(mInternetStream);
+ return open_state;
+}