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tdemultimedia/juk/gstreamerplayer.cpp

347 lines
9.7 KiB

/***************************************************************************
copyright : (C) 2004 Scott Wheeler
email : wheeler@kde.org
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "gstreamerplayer.h"
#if HAVE_GSTREAMER
#include <kapplication.h>
#include <kconfig.h>
#include <kglobal.h>
#include <kdebug.h>
#include <tqfile.h>
#include <tqtimer.h>
// Defined because recent versions of glib add support for having gcc check
// whether the sentinel used on g_object_{set,get} is correct. Although 0
// is a valid NULL pointer in C++, when used in a C function call g++ doesn't
// know to turn it into a pointer so it leaves it as an int instead (which is
// wrong for 64-bit arch). So, use the handy define below instead.
#define JUK_GLIB_NULL static_cast<gpointer>(0)
#if GSTREAMER_VERSION == 8
/******************************************************************************/
/******************************************************************************/
/****************************** GSTREAMER 0.8 *******************************/
/******************************************************************************/
/******************************************************************************/
////////////////////////////////////////////////////////////////////////////////
// public methods
////////////////////////////////////////////////////////////////////////////////
GStreamerPlayer::GStreamerPlayer() :
Player(),
m_pipeline(0),
m_source(0),
m_decoder(0),
m_volume(0),
m_sink(0)
{
readConfig();
setupPipeline();
}
GStreamerPlayer::~GStreamerPlayer()
{
stop();
gst_object_unref(GST_OBJECT(m_pipeline));
}
void GStreamerPlayer::play(const FileHandle &file)
{
if(!file.isNull()) {
stop();
g_object_set(G_OBJECT(m_source), "location", file.absFilePath().local8Bit().data(), JUK_GLIB_NULL);
}
gst_element_set_state(m_pipeline, GST_STATE_PLAYING);
}
void GStreamerPlayer::pause()
{
gst_element_set_state(m_pipeline, GST_STATE_PAUSED);
}
void GStreamerPlayer::stop()
{
gst_element_set_state(m_pipeline, GST_STATE_NULL);
}
void GStreamerPlayer::setVolume(float volume)
{
g_object_set(G_OBJECT(m_volume), "volume", volume, JUK_GLIB_NULL);
}
float GStreamerPlayer::volume() const
{
gdouble value;
g_object_get(G_OBJECT(m_volume), "volume", &value, JUK_GLIB_NULL);
return (float) value;
}
bool GStreamerPlayer::playing() const
{
return gst_element_get_state(m_pipeline) == GST_STATE_PLAYING;
}
bool GStreamerPlayer::paused() const
{
return gst_element_get_state(m_pipeline) == GST_STATE_PAUSED;
}
int GStreamerPlayer::totalTime() const
{
return time(GST_QUERY_TOTAL) / GST_SECOND;
}
int GStreamerPlayer::currentTime() const
{
return time(GST_QUERY_POSITION) / GST_SECOND;
}
int GStreamerPlayer::position() const
{
long long total = time(GST_QUERY_TOTAL);
long long current = time(GST_QUERY_POSITION);
return total > 0 ? int((double(current) / double(total)) * double(1000) + 0.5) : 0;
}
void GStreamerPlayer::seek(int seekTime)
{
int type = (GST_FORMAT_TIME | GST_SEEK_METHOD_SET | GST_SEEK_FLAG_FLUSH);
gst_element_seek(m_sink, GstSeekType(type), seekTime * GST_SECOND);
}
void GStreamerPlayer::seekPosition(int position)
{
long long total = time(GST_QUERY_TOTAL);
if(total > 0)
seek(int(double(position) / double(1000) * double(totalTime()) + 0.5));
}
////////////////////////////////////////////////////////////////////////////////
// private methods
////////////////////////////////////////////////////////////////////////////////
void GStreamerPlayer::readConfig()
{
KConfigGroup config(KGlobal::config(), "GStreamerPlayer");
m_sinkName = config.readEntry("SinkName", TQString::null);
}
void GStreamerPlayer::setupPipeline()
{
static bool initialized = false;
if(!initialized) {
int argc = kapp->argc();
char **argv = kapp->argv();
gst_init(&argc, &argv);
initialized = true;
}
m_pipeline = gst_thread_new("pipeline");
m_source = gst_element_factory_make("filesrc", "source");
m_decoder = gst_element_factory_make("spider", "decoder");
m_volume = gst_element_factory_make("volume", "volume");
if(!m_sinkName.isNull())
m_sink = gst_element_factory_make(m_sinkName.utf8().data(), "sink");
else {
m_sink = gst_element_factory_make("alsasink", "sink");
if(!m_sink)
m_sink = gst_element_factory_make("osssink", "sink");
}
gst_bin_add_many(GST_BIN(m_pipeline), m_source, m_decoder, m_volume, m_sink, 0);
gst_element_link_many(m_source, m_decoder, m_volume, m_sink, 0);
}
long long GStreamerPlayer::time(GstQueryType type) const
{
gint64 ns = 0;
GstFormat format = GST_FORMAT_TIME;
gst_element_query(m_sink, type, &format, &ns);
return ns;
}
#else
/******************************************************************************/
/******************************************************************************/
/****************************** GSTREAMER 0.10 ******************************/
/******************************************************************************/
/******************************************************************************/
static GstBusSyncReply messageHandler(GstBus *, GstMessage *message, gpointer data)
{
if(GST_MESSAGE_TYPE(message) == GST_MESSAGE_EOS) {
GStreamerPlayer *player = static_cast<GStreamerPlayer *>(data);
TQTimer::singleShot(0, player, TQT_SLOT(stop()));
}
gst_message_unref(message);
return GST_BUS_DROP;
}
////////////////////////////////////////////////////////////////////////////////
// public methods
////////////////////////////////////////////////////////////////////////////////
GStreamerPlayer::GStreamerPlayer() :
Player(),
m_playbin(0)
{
setupPipeline();
}
GStreamerPlayer::~GStreamerPlayer()
{
stop();
gst_object_unref(GST_OBJECT(m_playbin));
}
void GStreamerPlayer::play(const FileHandle &file)
{
if(!file.isNull()) {
stop();
gchar *uri = g_filename_to_uri(file.absFilePath().local8Bit().data(), NULL, NULL);
g_object_set(G_OBJECT(m_playbin), "uri", uri, JUK_GLIB_NULL);
}
gst_element_set_state(m_playbin, GST_STATE_PLAYING);
}
void GStreamerPlayer::pause()
{
gst_element_set_state(m_playbin, GST_STATE_PAUSED);
}
void GStreamerPlayer::stop()
{
gst_element_set_state(m_playbin, GST_STATE_NULL);
}
void GStreamerPlayer::setVolume(float volume)
{
g_object_set(G_OBJECT(m_playbin), "volume", volume, JUK_GLIB_NULL);
}
float GStreamerPlayer::volume() const
{
gdouble value;
g_object_get(G_OBJECT(m_playbin), "volume", &value, JUK_GLIB_NULL);
return (float) value;
}
bool GStreamerPlayer::playing() const
{
return state() == GST_STATE_PLAYING;
}
bool GStreamerPlayer::paused() const
{
return state() == GST_STATE_PAUSED;
}
int GStreamerPlayer::totalTime() const
{
return time(TotalLength) / GST_SECOND;
}
int GStreamerPlayer::currentTime() const
{
return time(CurrentPosition) / GST_SECOND;
}
int GStreamerPlayer::position() const
{
long long total = time(TotalLength);
long long current = time(CurrentPosition);
return total > 0 ? int((double(current) / double(total)) * double(1000) + 0.5) : 0;
}
void GStreamerPlayer::seek(int seekTime)
{
gst_element_seek(m_playbin, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, seekTime * GST_SECOND, GST_SEEK_TYPE_END, 0);
}
void GStreamerPlayer::seekPosition(int position)
{
gint64 time = gint64((double(position) / double(1000) * double(totalTime())
+ 0.5) * double(GST_SECOND));
gst_element_seek(m_playbin, 1.0, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,
GST_SEEK_TYPE_SET, time, GST_SEEK_TYPE_END, 0);
}
////////////////////////////////////////////////////////////////////////////////
// private methods
////////////////////////////////////////////////////////////////////////////////
void GStreamerPlayer::setupPipeline()
{
static bool initialized = false;
if(!initialized) {
int argc = kapp->argc();
char **argv = kapp->argv();
gst_init(&argc, &argv);
initialized = true;
}
m_playbin = gst_element_factory_make("playbin", "playbin");
gst_bus_set_sync_handler(gst_pipeline_get_bus(GST_PIPELINE(m_playbin)), messageHandler, this);
}
long long GStreamerPlayer::time(TimeQuery type) const
{
GstQuery *query = (type == CurrentPosition)
? gst_query_new_position(GST_FORMAT_TIME)
: gst_query_new_duration(GST_FORMAT_TIME);
gint64 ns = 0;
GstFormat format;
if(gst_element_query(m_playbin, query))
{
if(type == CurrentPosition)
gst_query_parse_position(query, &format, &ns);
else
gst_query_parse_duration(query, &format, &ns);
}
gst_query_unref(query);
return ns;
}
GstState GStreamerPlayer::state() const
{
GstState state;
gst_element_get_state(m_playbin, &state, NULL, GST_CLOCK_TIME_NONE);
return state;
}
#endif
#include "gstreamerplayer.moc"
#endif
// vim: set et sw=4: