/////////////////////////////////////////////////////////////////////////////
-// Name: mac/carbon/mediactrl.cpp
-// Purpose: Built-in Media Backends for Unix (stub)
+// Name: unix/mediactrl.cpp
+// Purpose: Built-in Media Backends for Unix
// Author: Ryan Norton <wxprojects@comcast.net>
// Modified by:
// Created: 02/04/05
//---------------------------------------------------------------------------
#if wxUSE_MEDIACTRL
+//===========================================================================
+// BACKEND DECLARATIONS
+//===========================================================================
+
+//---------------------------------------------------------------------------
+//
+// wxGStreamerMediaBackend
+//
+// This won't compile/work without a little work yet...
+// Uses nanoseconds...
+//---------------------------------------------------------------------------
+#if wxUSE_GSTREAMER
+
+//---------------------------------------------------------------------------
+// GStreamer Includes
+//---------------------------------------------------------------------------
+#include <gst/gst.h>
+#include <gst/xoverlay/xoverlay.h>
+
+#include <string.h> //strstr
+
+#include "wx/log.h"
+
+#ifdef __WXGTK__
+ //for <gdk/gdkx.h>/related for GDK_WINDOW_XWINDOW
+# include "wx/gtk/win_gtk.h"
+#endif
+
+class WXDLLIMPEXP_MEDIA wxGStreamerMediaBackend : public wxMediaBackend
+{
+public:
+
+ wxGStreamerMediaBackend();
+ ~wxGStreamerMediaBackend();
+
+ virtual bool CreateControl(wxControl* ctrl, wxWindow* parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxValidator& validator,
+ const wxString& name);
+
+ virtual bool Play();
+ virtual bool Pause();
+ virtual bool Stop();
+
+ virtual bool Load(const wxString& fileName);
+ virtual bool Load(const wxURI& location);
+
+ virtual wxMediaState GetState();
+
+ virtual bool SetPosition(wxLongLong where);
+ virtual wxLongLong GetPosition();
+ virtual wxLongLong GetDuration();
+
+ virtual void Move(int x, int y, int w, int h);
+ wxSize GetVideoSize() const;
+
+ virtual double GetPlaybackRate();
+ virtual bool SetPlaybackRate(double dRate);
+
+ void Cleanup();
+
+ static void OnFinish(GstElement *play, gpointer data);
+ static void OnError (GstElement *play, GstElement *src,
+ GError *err, gchar *debug,
+ gpointer data);
+
+ GstElement* m_player; //GStreamer media element
+ GstElement* m_audiosink;
+ GstElement* m_videosink;
+
+ DECLARE_DYNAMIC_CLASS(wxGStreamerMediaBackend);
+};
+
+
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+//
+// wxGStreamerMediaBackend
+//
+//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+IMPLEMENT_DYNAMIC_CLASS(wxGStreamerMediaBackend, wxMediaBackend);
+
+wxGStreamerMediaBackend::wxGStreamerMediaBackend()
+{
+}
+
+wxGStreamerMediaBackend::~wxGStreamerMediaBackend()
+{
+ gst_element_set_state (m_player, GST_STATE_NULL);
+ gst_object_unref (GST_OBJECT (m_player));
+ gst_object_unref (GST_OBJECT (m_videosink));
+ gst_object_unref (GST_OBJECT (m_audiosink));
+}
+
+bool wxGStreamerMediaBackend::CreateControl(wxControl* ctrl, wxWindow* parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxValidator& validator,
+ const wxString& name)
+{
+ //init gstreamer
+ gst_init(NULL, NULL);
+
+ //
+ // Create window
+ // By default wxWindow(s) is created with a border -
+ // so we need to get rid of those return Load(
+ //
+ // Since we don't have a child window like most other
+ // backends, we don't need wxCLIP_CHILDREN
+ //
+ if ( !
+ ctrl->wxControl::Create(parent, id, pos, size,
+ style, //remove borders???
+ validator, name)
+ )
+ return false;
+
+ m_player = gst_element_factory_make ("playbin", "play");
+ m_audiosink = gst_element_factory_make ("alsasink", "audiosink");
+ m_videosink = gst_element_factory_make ("xvimagesink", "videosink");
+
+ g_object_set (G_OBJECT (m_player),
+ "video-sink", m_videosink,
+ "audio-sink", m_audiosink,
+ NULL);
+
+ g_signal_connect (m_player, "eos", G_CALLBACK (OnError), this);
+ g_signal_connect (m_player, "error", G_CALLBACK (OnFinish), this);
+
+ if ( ! GST_IS_X_OVERLAY(m_videosink) )
+ return false;
+
+ gst_x_overlay_set_xwindow_id( GST_X_OVERLAY(m_videosink),
+#ifdef __WXGTK__
+ GDK_WINDOW_XWINDOW(ctrl->GetHandle())
+#else
+ ctrl->GetHandle()
+#endif
+ );
+ return true;
+}
+
+void wxGStreamerMediaBackend::OnFinish(GstElement *play, gpointer data)
+{
+ wxGStreamerMediaBackend* m_parent = (wxGStreamerMediaBackend*) data;
+
+ wxMediaEvent theEvent(wxEVT_MEDIA_STOP,
+ m_parent->m_ctrl->GetId());
+ m_parent->m_ctrl->ProcessEvent(theEvent);
+
+ if(theEvent.IsAllowed())
+ {
+ bool bOk = m_parent->Stop();
+ wxASSERT(bOk);
+
+ //send the event to our child
+ wxMediaEvent theEvent(wxEVT_MEDIA_FINISHED,
+ m_parent->m_ctrl->GetId());
+ m_parent->m_ctrl->ProcessEvent(theEvent);
+ }
+}
+
+void wxGStreamerMediaBackend::OnError(GstElement *play,
+ GstElement *src,
+ GError *err,
+ gchar *debug,
+ gpointer data)
+{
+ wxLogSysError(wxString::Format(wxT("Error in GStreamer Playback!\nError Message:%s"), wxString(err->message).c_str()));
+}
+
+
+bool wxGStreamerMediaBackend::Load(const wxString& fileName)
+{
+ return Load(
+ wxURI(
+ wxString( wxT("file://") ) + fileName
+ )
+ );
+}
+
+bool wxGStreamerMediaBackend::Load(const wxURI& location)
+{
+ Cleanup();
+ wxString locstring = location.BuildURI();
+
+
+ if ( GST_STATE(m_player) > GST_STATE_READY )
+ gst_element_set_state(m_player, GST_STATE_READY);
+
+ g_object_set (G_OBJECT (m_player), "uri", locstring.c_str(), NULL);
+
+ gst_x_overlay_expose(GST_X_OVERLAY(m_videosink));
+
+ return GST_STATE(m_player) == GST_STATE_READY;
+}
+
+bool wxGStreamerMediaBackend::Play()
+{
+ if (gst_element_set_state (m_player, GST_STATE_PLAYING)
+ != GST_STATE_SUCCESS)
+ return false;
+ return true;
+}
+
+bool wxGStreamerMediaBackend::Pause()
+{
+ if (gst_element_set_state (m_player, GST_STATE_PAUSED)
+ != GST_STATE_SUCCESS)
+ return false;
+ return true;
+}
+
+bool wxGStreamerMediaBackend::Stop()
+{
+ if (gst_element_set_state (m_player,
+ GST_STATE_READY) != GST_STATE_SUCCESS)
+ return false;
+ return true;
+}
+
+wxMediaState wxGStreamerMediaBackend::GetState()
+{
+ switch(GST_STATE(m_player))
+ {
+ case GST_STATE_PLAYING:
+ return wxMEDIASTATE_PLAYING;
+ case GST_STATE_PAUSED:
+ return wxMEDIASTATE_PAUSED;
+ default://case GST_STATE_READY:
+ return wxMEDIASTATE_STOPPED;
+ }
+}
+
+bool wxGStreamerMediaBackend::SetPosition(wxLongLong where)
+{
+ return gst_element_seek (play, (GstSeekType) (GST_SEEK_METHOD_SET |
+ GST_FORMAT_TIME | GST_SEEK_FLAG_FLUSH),
+ where * GST_MSECOND );
+}
+
+wxLongLong wxGStreamerMediaBackend::GetPosition()
+{
+ gint64 pos;
+ GstFormat fmtTime = GST_FORMAT_TIME;
+
+ if (!gst_element_query (play, GST_QUERY_POSITION, &fmtTime, &pos))
+ return 0;
+ return pos / GST_MSECOND ;
+}
+
+wxLongLong wxGStreamerMediaBackend::GetDuration()
+{
+ gint64 length;
+ GstFormat fmtTime = GST_FORMAT_TIME;
+
+ if(!gst_element_query(m_player, GST_QUERY_TOTAL, &fmtTime, &length))
+ return 0;
+ return length / GST_MSECOND ;
+}
+
+void wxGStreamerMediaBackend::Move(int x, int y, int w, int h)
+{
+}
+
+wxSize wxGStreamerMediaBackend::GetVideoSize() const
+{
+ //TODO: check state
+ //TODO: maybe cache size
+ wxSize retSize = wxSize(0,0);
+
+ const GList *list = NULL;
+ g_object_get (G_OBJECT (m_player), "stream-info", &list, NULL);
+
+ for ( ; list != NULL; list = list->next)
+ {
+ GObject *info = (GObject *) list->data;
+ gint type;
+ GParamSpec *pspec;
+ GEnumValue *val;
+ GstPad *pad = NULL;
+
+ g_object_get (info, "type", &type, NULL);
+ pspec = g_object_class_find_property (
+ G_OBJECT_GET_CLASS (info), "type");
+ val = g_enum_get_value (G_PARAM_SPEC_ENUM (pspec)->enum_class, type);
+
+ if (strstr (val->value_name, "VIDEO"))
+ {
+ g_object_get (info, "object", &pad, NULL);
+ pad = (GstPad *) GST_PAD_REALIZE (pad);
+ wxAssert(pad);
+
+ GstCaps* caps = GST_PAD_CAPS (pad);
+ wxAssert(caps);
+
+ const GstStructure *s;
+ s = gst_caps_get_structure (caps, 0);
+ wxAssert(s);
+
+ gst_structure_get_int (s, "width", &retSize.x);
+ gst_structure_get_int (s, "height", &retSize.y);
+
+ const GValue *par;
+ par = gst_structure_get_value (s, "pixel-aspect-ratio"));
+
+ if (par)
+ {
+ int num = gst_value_get_fraction_numerator (par),
+ den = gst_value_get_fraction_denominator (par);
+
+ //TODO: maybe better fraction normalization...
+ if (num > den)
+ retSize.x = (int) ((float) num * retSize.x / den);
+ else
+ retSize.y = (int) ((float) den * retSize.y / num);
+ }
+ }
+ }
+}
+
+double wxGStreamerMediaBackend::GetPlaybackRate()
+{
+ //guess...
+ GstClock* theClock = gst_element_get_clock(m_player);
+ wxAssert(theClock);
+ return gst_clock_get_speed(theClock);
+}
+
+bool wxGStreamerMediaBackend::SetPlaybackRate(double dRate)
+{
+ //guess...
+ GstClock* theClock = gst_element_get_clock(m_player);
+ wxAssert(theClock);
+ return gst_clock_change_speed(theClock, GetPlaybackRate(), dRate)==dRate;
+}
+
+#endif //wxUSE_GSTREAMER
+
//in source file that contains stuff you don't directly use
#include <wx/html/forcelnk.h>
FORCE_LINK_ME(basewxmediabackends);
projects / wxWidgets.git / commitdiff
