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/**
* @file llviewermedia_streamingaudio.h
* @author Tofu Linden, Sam Kolb
* @brief LLStreamingAudio_MediaPlugins implementation - an implementation of the streaming audio interface which is implemented as a client of the media plugin API.
*
* $LicenseInfo:firstyear=2009&license=viewergpl$
*
* 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 "llviewerprecompiledheaders.h"
#include "linden_common.h"
#include "llpluginclassmedia.h"
#include "llpluginclassmediaowner.h"
#include "llviewermedia.h"
#include "llviewermedia_streamingaudio.h"
#include "llmimetypes.h"
#include "llvfs.h"
#include "lldir.h"
LLStreamingAudio_MediaPlugins::LLStreamingAudio_MediaPlugins() :
mMediaPlugin(NULL),
mGain(1.0)
{
// nothing interesting to do?
// we will lazily create a media plugin at play-time, if none exists.
}
LLStreamingAudio_MediaPlugins::~LLStreamingAudio_MediaPlugins()
{
delete mMediaPlugin;
mMediaPlugin = NULL;
}
void LLStreamingAudio_MediaPlugins::start(const std::string& url)
{
if (!mMediaPlugin) // lazy-init the underlying media plugin
{
mMediaPlugin = initializeMedia("audio/mpeg"); // assumes that whatever media implementation supports mp3 also supports vorbis.
llinfos << "steaming audio mMediaPlugin is now " << mMediaPlugin << llendl;
}
if(!mMediaPlugin)
return;
if (!url.empty()) {
llinfos << "Starting internet stream: " << url << llendl;
mURL = url;
mMediaPlugin->loadURI ( url );
mMediaPlugin->start();
llinfos << "Playing stream..." << llendl;
} else {
llinfos << "setting stream to NULL"<< llendl;
mURL.clear();
mMediaPlugin->stop();
}
}
void LLStreamingAudio_MediaPlugins::stop()
{
llinfos << "Stopping internet stream." << llendl;
if(mMediaPlugin)
{
mMediaPlugin->stop();
}
mURL.clear();
}
void LLStreamingAudio_MediaPlugins::pause(int pause)
{
if(!mMediaPlugin)
return;
if(pause)
{
llinfos << "Pausing internet stream." << llendl;
mMediaPlugin->pause();
}
else
{
llinfos << "Unpausing internet stream." << llendl;
mMediaPlugin->start();
}
}
void LLStreamingAudio_MediaPlugins::update()
{
if (mMediaPlugin)
mMediaPlugin->idle();
}
int LLStreamingAudio_MediaPlugins::isPlaying()
{
if (!mMediaPlugin)
return 0; // stopped
LLPluginClassMediaOwner::EMediaStatus status =
mMediaPlugin->getStatus();
switch (status)
{
case LLPluginClassMediaOwner::MEDIA_LOADING: // but not MEDIA_LOADED
case LLPluginClassMediaOwner::MEDIA_PLAYING:
return 1; // Active and playing
case LLPluginClassMediaOwner::MEDIA_PAUSED:
return 2; // paused
default:
return 0; // stopped
}
}
void LLStreamingAudio_MediaPlugins::setGain(F32 vol)
{
mGain = vol;
if(!mMediaPlugin)
return;
vol = llclamp(vol, 0.f, 1.f);
mMediaPlugin->setVolume(vol);
}
F32 LLStreamingAudio_MediaPlugins::getGain()
{
return mGain;
}
std::string LLStreamingAudio_MediaPlugins::getURL()
{
return mURL;
}
LLPluginClassMedia* LLStreamingAudio_MediaPlugins::initializeMedia(const std::string& media_type)
{
LLPluginClassMediaOwner* owner = NULL;
S32 default_size = 1; // audio-only - be minimal, doesn't matter
LLPluginClassMedia* media_source = LLViewerMediaImpl::newSourceFromMediaType(media_type, owner, default_size, default_size);
if (media_source)
{
media_source->setLoop(false); // audio streams are not expected to loop
}
return media_source;
}
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