OpenSceneGraph/src/osgPlugins/xine/ReaderWriterXine.cpp
2005-03-07 11:58:41 +00:00

328 lines
9.3 KiB
C++

// (C) Robert Osfield, Feb 2004.
// GPL'd.
#include <osg/ImageStream>
#include <osg/Notify>
#include <osg/Geode>
#include <osg/GL>
#include <osg/Timer>
#include <osgDB/Registry>
#include <osgDB/FileNameUtils>
#include <osgDB/FileUtils>
#include <xine.h>
#include <xine/xineutils.h>
#include <xine/video_out.h>
#include "video_out_rgb.h"
namespace osgXine
{
class XineImageStream : public osg::ImageStream
{
public:
XineImageStream():
_xine(0),
_vo(0),
_ao(0),
_visual(0),
_stream(0),
_event_queue(0),
_ready(false) {}
/** Copy constructor using CopyOp to manage deep vs shallow copy. */
XineImageStream(const XineImageStream& image,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):
ImageStream(image,copyop) {}
META_Object(osgXine,XineImageStream);
bool open(xine_t* xine, const std::string& filename)
{
if (filename==getFileName()) return true;
_xine = xine;
// create visual
rgbout_visual_info_t* visual = new rgbout_visual_info_t;
visual->levels = PXLEVEL_ALL;
visual->format = PX_RGB32;
visual->user_data = this;
visual->callback = my_render_frame;
// set up video driver
_vo = xine_open_video_driver(_xine, "rgb", XINE_VISUAL_TYPE_RGBOUT, (void*)visual);
// set up audio driver
char* audio_driver = getenv("OSG_XINE_AUDIO_DRIVER");
_ao = audio_driver ? xine_open_audio_driver(_xine, audio_driver, NULL) : xine_open_audio_driver(_xine, "auto", NULL);
if (!_vo)
{
osg::notify(osg::NOTICE)<<"Failed to create video driver"<<std::endl;
return false;
}
// set up stream
_stream = xine_stream_new(_xine, _ao, _vo);
_event_queue = xine_event_new_queue(_stream);
xine_event_create_listener_thread(_event_queue, event_listener, this);
int result = xine_open(_stream, filename.c_str());
osg::notify(osg::INFO)<<"XineImageStream::open - xine_open"<<result<<std::endl;
_ready = false;
// play();
return true;
}
virtual void play()
{
if (_status!=PLAYING && _stream)
{
if (_status==PAUSED)
{
xine_set_param (_stream, XINE_PARAM_SPEED, XINE_SPEED_NORMAL);
}
else
{
osg::notify(osg::INFO)<<"XineImageStream::play()"<<std::endl;
xine_play(_stream, 0, 0);
while (!_ready)
{
osg::notify(osg::INFO)<<" waiting..."<<std::endl;
usleep(10000);
}
}
}
_status=PLAYING;
}
virtual void pause()
{
if (_status==PAUSED || _status==INVALID) return;
_status=PAUSED;
if (_stream)
{
xine_set_param (_stream, XINE_PARAM_SPEED, XINE_SPEED_PAUSE);
}
}
virtual void rewind()
{
if (_status==INVALID) return;
_status=REWINDING;
if (_stream)
{
osg::notify(osg::WARN)<<"Warning::XineImageStream::rewind() - rewind disabled at present."<<std::endl;
// xine_trick_mode(_stream,XINE_TRICK_MODE_FAST_REWIND,0);
}
}
virtual void quit(bool /*waitForThreadToExit*/ = true)
{
close();
}
static void my_render_frame(uint32_t width, uint32_t height, void* data, void* userData)
{
XineImageStream* imageStream = (XineImageStream*) userData;
GLenum pixelFormat = GL_BGRA;
#if 0
if (!imageStream->_ready)
{
imageStream->allocateImage(width,height,1,pixelFormat,GL_UNSIGNED_BYTE,1);
imageStream->setInternalTextureFormat(GL_RGBA);
}
osg::Timer_t start_tick = osg::Timer::instance()->tick();
memcpy(imageStream->data(),data,imageStream->getTotalSizeInBytes());
osg::notify(osg::NOTICE)<<"image memcpy size="<<imageStream->getTotalSizeInBytes()<<" time="<<osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick())<<"ms"<<std::endl;
imageStream->dirty();
#else
imageStream->setImage(width,height,1,
GL_RGB,
pixelFormat,GL_UNSIGNED_BYTE,
(unsigned char *)data,
osg::Image::NO_DELETE,
1);
#endif
imageStream->_ready = true;
}
xine_t* _xine;
xine_video_port_t* _vo;
xine_audio_port_t* _ao;
rgbout_visual_info_t* _visual;
xine_stream_t* _stream;
xine_event_queue_t* _event_queue;
bool _ready;
protected:
virtual ~XineImageStream()
{
osg::notify(osg::INFO)<<"Killing XineImageStream"<<std::endl;
close();
osg::notify(osg::INFO)<<"Closed XineImageStream"<<std::endl;
}
void close()
{
osg::notify(osg::INFO)<<"XineImageStream::close()"<<std::endl;
if (_stream)
{
osg::notify(osg::INFO)<<" Closing stream"<<std::endl;
xine_close(_stream);
osg::notify(osg::INFO)<<" Disposing stream"<<std::endl;
xine_dispose(_stream);
_stream = 0;
}
if (_event_queue)
{
_event_queue = 0;
}
if (_ao)
{
osg::notify(osg::INFO)<<" Closing audio driver"<<std::endl;
xine_close_audio_driver(_xine, _ao);
_ao = 0;
}
if (_vo)
{
osg::notify(osg::INFO)<<" Closing video driver"<<std::endl;
xine_close_video_driver(_xine, _vo);
_vo = 0;
}
osg::notify(osg::INFO)<<"closed XineImageStream "<<std::endl;
}
static void event_listener(void *user_data, const xine_event_t *event)
{
XineImageStream* xis = reinterpret_cast<XineImageStream*>(user_data);
switch(event->type)
{
case XINE_EVENT_UI_PLAYBACK_FINISHED:
if (xis->getLoopingMode()==LOOPING)
{
//rewind();
xine_play(xis->_stream, 0, 0);
}
break;
}
}
};
}
class ReaderWriterXine : public osgDB::ReaderWriter
{
public:
ReaderWriterXine()
{
_xine = xine_new();
const char* user_home = xine_get_homedir();
if(user_home)
{
char* cfgfile = NULL;
asprintf(&(cfgfile), "%s/.xine/config", user_home);
xine_config_load(_xine, cfgfile);
}
xine_init(_xine);
register_rgbout_plugin(_xine);
}
virtual ~ReaderWriterXine()
{
osg::notify(osg::INFO)<<"~ReaderWriterXine()"<<std::endl;
if (_xine) xine_exit(_xine);
_xine = NULL;
}
virtual const char* className() const { return "Xine ImageStream Reader"; }
virtual bool acceptsExtension(const std::string& extension) const
{
return osgDB::equalCaseInsensitive(extension,"mpg") ||
osgDB::equalCaseInsensitive(extension,"mov") ||
osgDB::equalCaseInsensitive(extension,"avi") ||
osgDB::equalCaseInsensitive(extension,"xine");
}
virtual ReadResult readImage(const std::string& file, const osgDB::ReaderWriter::Options* options) const
{
std::string ext = osgDB::getLowerCaseFileExtension(file);
if (!acceptsExtension(ext)) return ReadResult::FILE_NOT_HANDLED;
std::string fileName;
if (ext=="xine")
{
fileName = osgDB::getNameLessExtension(file);
osg::notify(osg::NOTICE)<<"Xine stipped filename = "<<fileName;
}
else
{
fileName = osgDB::findDataFile( file, options );
if (fileName.empty()) return ReadResult::FILE_NOT_FOUND;
}
osg::notify(osg::INFO)<<"ReaderWriterXine::readImage "<< file<< std::endl;
osg::ref_ptr<osgXine::XineImageStream> imageStream = new osgXine::XineImageStream();
if (!imageStream->open(_xine, fileName)) return ReadResult::FILE_NOT_HANDLED;
return imageStream.release();
}
protected:
xine_t* _xine;
};
// now register with Registry to instantiate the above
// reader/writer.
osgDB::RegisterReaderWriterProxy<ReaderWriterXine> g_readerWriter_Xine_Proxy;