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Diffstat (limited to 'indra/llaudio/llstreamingaudio_fmodstudio.cpp')
| -rw-r--r-- | indra/llaudio/llstreamingaudio_fmodstudio.cpp | 481 |
1 files changed, 0 insertions, 481 deletions
diff --git a/indra/llaudio/llstreamingaudio_fmodstudio.cpp b/indra/llaudio/llstreamingaudio_fmodstudio.cpp deleted file mode 100644 index 85577992a6..0000000000 --- a/indra/llaudio/llstreamingaudio_fmodstudio.cpp +++ /dev/null @@ -1,481 +0,0 @@ -/** - * @file streamingaudio_fmodstudio.cpp - * @brief LLStreamingAudio_FMODSTUDIO implementation - * - * $LicenseInfo:firstyear=2020&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2020, 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 "fmodstudio/fmod.hpp" -#include "fmodstudio/fmod_errors.h" - -#include "llstreamingaudio_fmodstudio.h" - - -class LLAudioStreamManagerFMODSTUDIO -{ -public: - LLAudioStreamManagerFMODSTUDIO(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_FMODSTUDIO::LLStreamingAudio_FMODSTUDIO(FMOD::System *system) : -mSystem(system), -mCurrentInternetStreamp(NULL), -mFMODInternetStreamChannelp(NULL), -mGain(1.0f), -mRetryCount(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 = 10; //sec - const U32 estimated_bitrate = 128; //kbit/sec - FMOD_RESULT result = mSystem->setStreamBufferSize(estimated_bitrate * buffer_seconds * 128/*bytes/kbit*/, FMOD_TIMEUNIT_RAWBYTES); - if (result != FMOD_OK) - { - LL_WARNS("FMOD") << "setStreamBufferSize error: " << FMOD_ErrorString(result) << LL_ENDL; - } - - // 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_FMODSTUDIO::~LLStreamingAudio_FMODSTUDIO() -{ - if (mCurrentInternetStreamp) - { - // Isn't supposed to hapen, stream should be clear by now, - // and if it does, we are likely going to crash. - LL_WARNS("FMOD") << "mCurrentInternetStreamp not null on shutdown!" << LL_ENDL; - stop(); - } - - // Kill dead internet streams, if possible - killDeadStreams(); - - if (!mDeadStreams.empty()) - { - // LLStreamingAudio_FMODSTUDIO was inited on startup - // and should be destroyed on shutdown, it should - // wait for streams to die to not cause crashes or - // leaks. - // Ideally we need to wait on some kind of callback - // to release() streams correctly, but 200 ms should - // be enough and we can't wait forever. - LL_INFOS("FMOD") << "Waiting for " << (S32)mDeadStreams.size() << " streams to stop" << LL_ENDL; - for (S32 i = 0; i < 20; i++) - { - const U32 ms_delay = 10; - ms_sleep(ms_delay); // rude, but not many options here - killDeadStreams(); - if (mDeadStreams.empty()) - { - LL_INFOS("FMOD") << "All streams stopped after " << (S32)((i + 1) * ms_delay) << "ms" << LL_ENDL; - break; - } - } - } - - if (!mDeadStreams.empty()) - { - LL_WARNS("FMOD") << "Failed to kill some audio streams" << LL_ENDL; - } -} - -void LLStreamingAudio_FMODSTUDIO::killDeadStreams() -{ - std::list<LLAudioStreamManagerFMODSTUDIO *>::iterator iter; - for (iter = mDeadStreams.begin(); iter != mDeadStreams.end();) - { - LLAudioStreamManagerFMODSTUDIO *streamp = *iter; - if (streamp->stopStream()) - { - LL_INFOS("FMOD") << "Closed dead stream" << LL_ENDL; - delete streamp; - iter = mDeadStreams.erase(iter); - } - else - { - iter++; - } - } -} - -void LLStreamingAudio_FMODSTUDIO::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("FMOD") << "Starting internet stream: " << url << LL_ENDL; - mCurrentInternetStreamp = new LLAudioStreamManagerFMODSTUDIO(mSystem, url); - mURL = url; - } - else - { - LL_INFOS("FMOD") << "Set internet stream to null" << LL_ENDL; - mURL.clear(); - } - - mRetryCount = 0; -} - - -void LLStreamingAudio_FMODSTUDIO::update() -{ - // Kill dead internet streams, if possible - killDeadStreams(); - - // 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); - } - mRetryCount = 0; - } - else if (open_state == FMOD_OPENSTATE_ERROR) - { - LL_INFOS("FMOD") << "State: FMOD_OPENSTATE_ERROR" - << " Progress: " << U32(progress) - << " Starving: " << S32(starving) - << " Diskbusy: " << S32(diskbusy) << LL_ENDL; - if (mRetryCount < 2) - { - // Retry - std::string url = mURL; - stop(); // might drop mURL, drops mCurrentInternetStreamp - - mRetryCount++; - - if (!url.empty()) - { - LL_INFOS("FMOD") << "Restarting internet stream: " << url << ", attempt " << (mRetryCount + 1) << LL_ENDL; - mCurrentInternetStreamp = new LLAudioStreamManagerFMODSTUDIO(mSystem, url); - mURL = url; - } - } - else - { - 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("FMOD") << "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("FMOD") << "Stream starvation detected! Pausing stream until buffer nearly full." << LL_ENDL; - LL_INFOS("FMOD") << " (diskbusy=" << diskbusy << ")" << LL_ENDL; - LL_INFOS("FMOD") << " (progress=" << progress << ")" << LL_ENDL; - mFMODInternetStreamChannelp->setPaused(true); - } - } - else if (progress > 80) - { - mFMODInternetStreamChannelp->setPaused(false); - } - } - } -} - -void LLStreamingAudio_FMODSTUDIO::stop() -{ - if (mFMODInternetStreamChannelp) - { - mFMODInternetStreamChannelp->setPaused(true); - mFMODInternetStreamChannelp->setPriority(0); - mFMODInternetStreamChannelp = NULL; - } - - if (mCurrentInternetStreamp) - { - LL_INFOS("FMOD") << "Stopping internet stream: " << mCurrentInternetStreamp->getURL() << LL_ENDL; - if (mCurrentInternetStreamp->stopStream()) - { - delete mCurrentInternetStreamp; - } - else - { - LL_WARNS("FMOD") << "Pushing stream to dead list: " << mCurrentInternetStreamp->getURL() << LL_ENDL; - mDeadStreams.push_back(mCurrentInternetStreamp); - } - mCurrentInternetStreamp = NULL; - //mURL.clear(); - } -} - -void LLStreamingAudio_FMODSTUDIO::pause(int pauseopt) -{ - if (pauseopt < 0) - { - pauseopt = mCurrentInternetStreamp ? 1 : 0; - } - - if (pauseopt) - { - if (mCurrentInternetStreamp) - { - LL_INFOS("FMOD") << "Pausing internet stream" << LL_ENDL; - 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_FMODSTUDIO::isPlaying() -{ - if (mCurrentInternetStreamp) - { - return 1; // Active and playing - } - else if (!mURL.empty()) - { - return 2; // "Paused" - } - else - { - return 0; - } -} - - -F32 LLStreamingAudio_FMODSTUDIO::getGain() -{ - return mGain; -} - - -std::string LLStreamingAudio_FMODSTUDIO::getURL() -{ - return mURL; -} - - -void LLStreamingAudio_FMODSTUDIO::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 - -LLAudioStreamManagerFMODSTUDIO::LLAudioStreamManagerFMODSTUDIO(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("FMOD") << "Couldn't open fmod stream, error " - << FMOD_ErrorString(result) - << LL_ENDL; - mReady = false; - return; - } - - mReady = true; -} - -FMOD::Channel *LLAudioStreamManagerFMODSTUDIO::startStream() -{ - // We need a live and opened stream before we try and play it. - if (!mInternetStream || getOpenState() != FMOD_OPENSTATE_READY) - { - LL_WARNS("FMOD") << "No internet stream to start playing!" << LL_ENDL; - return NULL; - } - - if (mStreamChannel) - return mStreamChannel; //Already have a channel for this stream. - - FMOD_RESULT result = mSystem->playSound(mInternetStream, NULL, true, &mStreamChannel); - if (result != FMOD_OK) - { - LL_WARNS("FMOD") << FMOD_ErrorString(result) << LL_ENDL; - } - return mStreamChannel; -} - -bool LLAudioStreamManagerFMODSTUDIO::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 LLAudioStreamManagerFMODSTUDIO::getOpenState(unsigned int* percentbuffered, bool* starving, bool* diskbusy) -{ - FMOD_OPENSTATE state; - FMOD_RESULT result = mInternetStream->getOpenState(&state, percentbuffered, starving, diskbusy); - if (result != FMOD_OK) - { - LL_WARNS("FMOD") << FMOD_ErrorString(result) << LL_ENDL; - } - return state; -} - -void LLStreamingAudio_FMODSTUDIO::setBufferSizes(U32 streambuffertime, U32 decodebuffertime) -{ - FMOD_RESULT result = mSystem->setStreamBufferSize(streambuffertime / 1000 * 128 * 128, FMOD_TIMEUNIT_RAWBYTES); - if (result != FMOD_OK) - { - LL_WARNS("FMOD") << "setStreamBufferSize error: " << FMOD_ErrorString(result) << LL_ENDL; - return; - } - FMOD_ADVANCEDSETTINGS settings; - memset(&settings, 0, sizeof(settings)); - settings.cbSize = sizeof(settings); - settings.defaultDecodeBufferSize = decodebuffertime;//ms - result = mSystem->setAdvancedSettings(&settings); - if (result != FMOD_OK) - { - LL_WARNS("FMOD") << "setAdvancedSettings error: " << FMOD_ErrorString(result) << LL_ENDL; - } -} |