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Diffstat (limited to 'indra/llaudio/llstreamingaudio_fmodex.cpp')
| -rw-r--r-- | indra/llaudio/llstreamingaudio_fmodex.cpp | 392 |
1 files changed, 0 insertions, 392 deletions
diff --git a/indra/llaudio/llstreamingaudio_fmodex.cpp b/indra/llaudio/llstreamingaudio_fmodex.cpp deleted file mode 100644 index 9c9e85c00c..0000000000 --- a/indra/llaudio/llstreamingaudio_fmodex.cpp +++ /dev/null @@ -1,392 +0,0 @@ -/** - * @file streamingaudio_fmodex.cpp - * @brief LLStreamingAudio_FMODEX implementation - * - * $LicenseInfo:firstyear=2002&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2010, Linden Research, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; - * version 2.1 of the License only. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA - * $/LicenseInfo$ - */ - -#include "linden_common.h" - -#include "llmath.h" - -#include "fmod.hpp" -#include "fmod_errors.h" - -#include "llstreamingaudio_fmodex.h" - - -class LLAudioStreamManagerFMODEX -{ -public: - LLAudioStreamManagerFMODEX(FMOD::System *system, const std::string& url); - FMOD::Channel* startStream(); - bool stopStream(); // Returns true if the stream was successfully stopped. - bool ready(); - - const std::string& getURL() { return mInternetStreamURL; } - - FMOD_OPENSTATE getOpenState(unsigned int* percentbuffered=NULL, bool* starving=NULL, bool* diskbusy=NULL); -protected: - FMOD::System* mSystem; - FMOD::Channel* mStreamChannel; - FMOD::Sound* mInternetStream; - bool mReady; - - std::string mInternetStreamURL; -}; - - - -//--------------------------------------------------------------------------- -// Internet Streaming -//--------------------------------------------------------------------------- -LLStreamingAudio_FMODEX::LLStreamingAudio_FMODEX(FMOD::System *system) : - mSystem(system), - mCurrentInternetStreamp(NULL), - mFMODInternetStreamChannelp(NULL), - 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. - 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); - - // 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_FMODEX::~LLStreamingAudio_FMODEX() -{ - // nothing interesting/safe to do. -} - - -void LLStreamingAudio_FMODEX::start(const std::string& url) -{ - //if (!mInited) - //{ - // LL_WARNS() << "startInternetStream before audio initialized" << LL_ENDL; - // return; - //} - - // "stop" stream but don't clear url, etc. in case url == mInternetStreamURL - stop(); - - if (!url.empty()) - { - LL_INFOS() << "Starting internet stream: " << url << LL_ENDL; - mCurrentInternetStreamp = new LLAudioStreamManagerFMODEX(mSystem,url); - mURL = url; - } - else - { - LL_INFOS() << "Set internet stream to null" << LL_ENDL; - mURL.clear(); - } -} - - -void LLStreamingAudio_FMODEX::update() -{ - // Kill dead internet streams, if possible - std::list<LLAudioStreamManagerFMODEX *>::iterator iter; - for (iter = mDeadStreams.begin(); iter != mDeadStreams.end();) - { - LLAudioStreamManagerFMODEX *streamp = *iter; - if (streamp->stopStream()) - { - LL_INFOS() << "Closed dead stream" << LL_ENDL; - delete streamp; - mDeadStreams.erase(iter++); - } - else - { - iter++; - } - } - - // Don't do anything if there are no streams playing - if (!mCurrentInternetStreamp) - { - return; - } - - unsigned int progress; - bool starving; - bool diskbusy; - FMOD_OPENSTATE open_state = mCurrentInternetStreamp->getOpenState(&progress, &starving, &diskbusy); - - if (open_state == FMOD_OPENSTATE_READY) - { - // Stream is live - - // start the stream if it's ready - if (!mFMODInternetStreamChannelp && - (mFMODInternetStreamChannelp = mCurrentInternetStreamp->startStream())) - { - // Reset volume to previously set volume - setGain(getGain()); - mFMODInternetStreamChannelp->setPaused(false); - } - } - else if(open_state == FMOD_OPENSTATE_ERROR) - { - stop(); - return; - } - - if(mFMODInternetStreamChannelp) - { - FMOD::Sound *sound = NULL; - - if(mFMODInternetStreamChannelp->getCurrentSound(&sound) == FMOD_OK && sound) - { - FMOD_TAG tag; - S32 tagcount, dirtytagcount; - - if(sound->getNumTags(&tagcount, &dirtytagcount) == FMOD_OK && dirtytagcount) - { - for(S32 i = 0; i < tagcount; ++i) - { - if(sound->getTag(NULL, i, &tag)!=FMOD_OK) - continue; - - if (tag.type == FMOD_TAGTYPE_FMOD) - { - if (!strcmp(tag.name, "Sample Rate Change")) - { - LL_INFOS() << "Stream forced changing sample rate to " << *((float *)tag.data) << LL_ENDL; - mFMODInternetStreamChannelp->setFrequency(*((float *)tag.data)); - } - continue; - } - } - } - - if(starving) - { - bool paused = false; - mFMODInternetStreamChannelp->getPaused(&paused); - if(!paused) - { - LL_INFOS() << "Stream starvation detected! Pausing stream until buffer nearly full." << LL_ENDL; - LL_INFOS() << " (diskbusy="<<diskbusy<<")" << LL_ENDL; - LL_INFOS() << " (progress="<<progress<<")" << LL_ENDL; - mFMODInternetStreamChannelp->setPaused(true); - } - } - else if(progress > 80) - { - mFMODInternetStreamChannelp->setPaused(false); - } - } - } -} - -void LLStreamingAudio_FMODEX::stop() -{ - if (mFMODInternetStreamChannelp) - { - mFMODInternetStreamChannelp->setPaused(true); - mFMODInternetStreamChannelp->setPriority(0); - mFMODInternetStreamChannelp = NULL; - } - - if (mCurrentInternetStreamp) - { - LL_INFOS() << "Stopping internet stream: " << mCurrentInternetStreamp->getURL() << LL_ENDL; - if (mCurrentInternetStreamp->stopStream()) - { - delete mCurrentInternetStreamp; - } - else - { - LL_WARNS() << "Pushing stream to dead list: " << mCurrentInternetStreamp->getURL() << LL_ENDL; - mDeadStreams.push_back(mCurrentInternetStreamp); - } - mCurrentInternetStreamp = NULL; - //mURL.clear(); - } -} - -void LLStreamingAudio_FMODEX::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_FMODEX::isPlaying() -{ - if (mCurrentInternetStreamp) - { - return 1; // Active and playing - } - else if (!mURL.empty()) - { - return 2; // "Paused" - } - else - { - return 0; - } -} - - -F32 LLStreamingAudio_FMODEX::getGain() -{ - return mGain; -} - - -std::string LLStreamingAudio_FMODEX::getURL() -{ - return mURL; -} - - -void LLStreamingAudio_FMODEX::setGain(F32 vol) -{ - mGain = vol; - - if (mFMODInternetStreamChannelp) - { - vol = llclamp(vol * vol, 0.f, 1.f); //should vol be squared here? - - mFMODInternetStreamChannelp->setVolume(vol); - } -} - -/////////////////////////////////////////////////////// -// manager of possibly-multiple internet audio streams - -LLAudioStreamManagerFMODEX::LLAudioStreamManagerFMODEX(FMOD::System *system, const std::string& url) : - mSystem(system), - mStreamChannel(NULL), - mInternetStream(NULL), - mReady(false) -{ - mInternetStreamURL = url; - - FMOD_RESULT result = mSystem->createStream(url.c_str(), FMOD_2D | FMOD_NONBLOCKING | FMOD_IGNORETAGS, 0, &mInternetStream); - - if (result!= FMOD_OK) - { - LL_WARNS() << "Couldn't open fmod stream, error " - << FMOD_ErrorString(result) - << LL_ENDL; - mReady = false; - return; - } - - mReady = true; -} - -FMOD::Channel *LLAudioStreamManagerFMODEX::startStream() -{ - // We need a live and opened stream before we try and play it. - if (!mInternetStream || getOpenState() != FMOD_OPENSTATE_READY) - { - LL_WARNS() << "No internet stream to start playing!" << LL_ENDL; - return NULL; - } - - if(mStreamChannel) - return mStreamChannel; //Already have a channel for this stream. - - mSystem->playSound(FMOD_CHANNEL_FREE, mInternetStream, true, &mStreamChannel); - return mStreamChannel; -} - -bool LLAudioStreamManagerFMODEX::stopStream() -{ - if (mInternetStream) - { - - - bool close = true; - switch (getOpenState()) - { - case FMOD_OPENSTATE_CONNECTING: - close = false; - break; - default: - close = true; - } - - if (close) - { - mInternetStream->release(); - mStreamChannel = NULL; - mInternetStream = NULL; - return true; - } - else - { - return false; - } - } - else - { - return true; - } -} - -FMOD_OPENSTATE LLAudioStreamManagerFMODEX::getOpenState(unsigned int* percentbuffered, bool* starving, bool* diskbusy) -{ - FMOD_OPENSTATE state; - 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); -} |