/* GStreamer * OSX video sink * Copyright (C) 2004-6 Zaheer Abbas Merali * Copyright (C) 2007,2008,2009 Pioneers of the Inevitable * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * 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 * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * * The development of this code was made possible due to the involvement of * Pioneers of the Inevitable, the creators of the Songbird Music player. * */ /** * SECTION:element-osxvideosink * * The OSXVideoSink renders video frames to a MacOSX window. The video output * must be directed to a window embedded in an existing NSApp. * * When the NSView to be embedded is created an element #GstMessage with a * name of 'have-ns-view' will be created and posted on the bus. * The pointer to the NSView to embed will be in the 'nsview' field of that * message. The application MUST handle this message and embed the view * appropriately. */ #include "config.h" #include #include #include "osxvideosink.h" #include #import "cocoawindow.h" GST_DEBUG_CATEGORY (gst_debug_osx_video_sink); #define GST_CAT_DEFAULT gst_debug_osx_video_sink #ifdef RUN_NS_APP_THREAD extern void _CFRunLoopSetCurrent(CFRunLoopRef rl); extern pthread_t _CFMainPThread; #endif static GstStaticPadTemplate gst_osx_video_sink_sink_template_factory = GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, GST_STATIC_CAPS ("video/x-raw, " "framerate = (fraction) [ 0, MAX ], " "width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ], " #if G_BYTE_ORDER == G_BIG_ENDIAN "format = (string) YUY2") #else "format = (string) UYVY") #endif ); enum { ARG_0, ARG_EMBED, ARG_FORCE_PAR, }; static void gst_osx_video_sink_osxwindow_destroy (GstOSXVideoSink * osxvideosink); static GstVideoSinkClass *parent_class = NULL; /* Helper to trigger calls from the main thread */ static void gst_osx_video_sink_call_from_main_thread(GstOSXVideoSink *osxvideosink, NSObject * object, SEL function, NSObject *data, BOOL waitUntilDone) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [object performSelector:function onThread:osxvideosink->ns_app_thread withObject:data waitUntilDone:waitUntilDone]; [pool release]; } /* Poll for cocoa events */ static void run_ns_app_loop (void) { NSEvent *event; NSAutoreleasePool *pool =[[NSAutoreleasePool alloc] init]; NSDate *pollTime = nil; #ifdef RUN_NS_APP_THREAD /* when running the loop in a thread we want to sleep as long as possible */ pollTime = [NSDate distantFuture]; #else pollTime = [NSDate distantPast]; #endif do { event = [NSApp nextEventMatchingMask:NSAnyEventMask untilDate:pollTime inMode:NSDefaultRunLoopMode dequeue:YES]; [NSApp sendEvent:event]; } while (event != nil); [pool release]; } static void gst_osx_video_sink_run_cocoa_loop (GstOSXVideoSink * sink ) { /* Cocoa applications require a main runloop running to dispatch UI * events and process deferred calls to the main thread through * perfermSelectorOnMainThread. * Since the sink needs to create it's own Cocoa window when no * external NSView is passed to the sink through the GstVideoOverlay API, * we need to run the cocoa mainloop somehow. */ if ([[NSRunLoop mainRunLoop] currentMode] == nil) { #ifdef RUN_NS_APP_THREAD /* run the main runloop in a separate thread */ /* override [NSThread isMainThread] with our own implementation so that we can * make it believe our dedicated thread is the main thread */ Method origIsMainThread = class_getClassMethod([NSThread class], NSSelectorFromString(@"isMainThread")); Method ourIsMainThread = class_getClassMethod([GstOSXVideoSinkObject class], NSSelectorFromString(@"isMainThread")); method_exchangeImplementations(origIsMainThread, ourIsMainThread); sink->ns_app_thread = [[NSThread alloc] initWithTarget:sink->osxvideosinkobject selector:@selector(nsAppThread) object:nil]; [sink->ns_app_thread start]; g_mutex_lock (sink->loop_thread_lock); while (!sink->app_started) g_cond_wait (sink->loop_thread_cond, sink->loop_thread_lock); g_mutex_unlock (sink->loop_thread_lock); #else /* assume that there is a GMainLoop and iterate the main runloop from there */ sink->cocoa_timeout = g_timeout_add (10, (GSourceFunc) run_ns_app_loop, NULL); #endif } } static void gst_osx_video_sink_stop_cocoa_loop (GstOSXVideoSink * osxvideosink) { #ifndef RUN_NS_APP_THREAD if (osxvideosink->cocoa_timeout) g_source_remove(osxvideosink->cocoa_timeout); #endif } /* This function handles osx window creation */ static gboolean gst_osx_video_sink_osxwindow_create (GstOSXVideoSink * osxvideosink, gint width, gint height) { NSRect rect; GstOSXWindow *osxwindow = NULL; GstStructure *s; GstMessage *msg; gboolean res = TRUE; NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; g_return_val_if_fail (GST_IS_OSX_VIDEO_SINK (osxvideosink), FALSE); GST_DEBUG_OBJECT (osxvideosink, "Creating new OSX window"); osxvideosink->osxwindow = osxwindow = g_new0 (GstOSXWindow, 1); osxwindow->width = width; osxwindow->height = height; osxwindow->closed = FALSE; /* Allocate our GstGLView for the window, and then tell the application * about it (hopefully it's listening...) */ rect.origin.x = 0.0; rect.origin.y = 0.0; rect.size.width = (float) osxwindow->width; rect.size.height = (float) osxwindow->height; osxwindow->gstview =[[GstGLView alloc] initWithFrame:rect]; s = gst_structure_new ("have-ns-view", "nsview", G_TYPE_POINTER, osxwindow->gstview, nil); msg = gst_message_new_element (GST_OBJECT (osxvideosink), s); gst_element_post_message (GST_ELEMENT (osxvideosink), msg); GST_INFO_OBJECT (osxvideosink, "'have-ns-view' message sent"); osxvideosink->ns_app_thread = [NSThread mainThread]; gst_osx_video_sink_run_cocoa_loop (osxvideosink); [osxwindow->gstview setMainThread:osxvideosink->ns_app_thread]; /* check if have-ns-view was handled and osxwindow->gstview was added to a * superview */ if ([osxwindow->gstview haveSuperview] == NO) { /* have-ns-view wasn't handled, post prepare-xwindow-id */ if (osxvideosink->superview == NULL) { GST_INFO_OBJECT (osxvideosink, "emitting prepare-xwindow-id"); gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (osxvideosink)); } if (osxvideosink->superview != NULL) { /* prepare-xwindow-id was handled, we have the superview in * osxvideosink->superview. We now add osxwindow->gstview to the superview * from the main thread */ GST_INFO_OBJECT (osxvideosink, "we have a superview, adding our view to it"); gst_osx_video_sink_call_from_main_thread(osxvideosink, osxwindow->gstview, @selector(addToSuperview:), osxvideosink->superview, NO); } else { if (osxvideosink->embed) { /* the view wasn't added to a superview. It's possible that the * application handled have-ns-view, stored our view internally and is * going to add it to a superview later (webkit does that now). */ GST_INFO_OBJECT (osxvideosink, "no superview"); } else { gst_osx_video_sink_call_from_main_thread(osxvideosink, osxvideosink->osxvideosinkobject, @selector(createInternalWindow), nil, YES); GST_INFO_OBJECT (osxvideosink, "No superview, creating an internal window."); } } } [osxwindow->gstview setNavigation: GST_NAVIGATION(osxvideosink)]; [osxvideosink->osxwindow->gstview setKeepAspectRatio: osxvideosink->keep_par]; [pool release]; return res; } static void gst_osx_video_sink_osxwindow_destroy (GstOSXVideoSink * osxvideosink) { NSAutoreleasePool *pool; g_return_if_fail (GST_IS_OSX_VIDEO_SINK (osxvideosink)); pool = [[NSAutoreleasePool alloc] init]; gst_osx_video_sink_call_from_main_thread(osxvideosink, osxvideosink->osxvideosinkobject, @selector(destroy), (id) nil, YES); gst_osx_video_sink_stop_cocoa_loop (osxvideosink); [pool release]; } /* This function resizes a GstXWindow */ static void gst_osx_video_sink_osxwindow_resize (GstOSXVideoSink * osxvideosink, GstOSXWindow * osxwindow, guint width, guint height) { GstOSXVideoSinkObject *object = osxvideosink->osxvideosinkobject; NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; g_return_if_fail (osxwindow != NULL); g_return_if_fail (GST_IS_OSX_VIDEO_SINK (osxvideosink)); osxwindow->width = width; osxwindow->height = height; GST_DEBUG_OBJECT (osxvideosink, "Resizing window to (%d,%d)", width, height); /* Directly resize the underlying view */ GST_DEBUG_OBJECT (osxvideosink, "Calling setVideoSize on %p", osxwindow->gstview); gst_osx_video_sink_call_from_main_thread(osxvideosink, object, @selector(resize), (id)nil, YES); [pool release]; } static gboolean gst_osx_video_sink_setcaps (GstBaseSink * bsink, GstCaps * caps) { GstOSXVideoSink *osxvideosink; GstStructure *structure; gboolean res, result = FALSE; gint video_width, video_height; osxvideosink = GST_OSX_VIDEO_SINK (bsink); GST_DEBUG_OBJECT (osxvideosink, "caps: %" GST_PTR_FORMAT, caps); structure = gst_caps_get_structure (caps, 0); res = gst_structure_get_int (structure, "width", &video_width); res &= gst_structure_get_int (structure, "height", &video_height); if (!res) { goto beach; } GST_DEBUG_OBJECT (osxvideosink, "our format is: %dx%d video", video_width, video_height); GST_VIDEO_SINK_WIDTH (osxvideosink) = video_width; GST_VIDEO_SINK_HEIGHT (osxvideosink) = video_height; gst_osx_video_sink_osxwindow_resize (osxvideosink, osxvideosink->osxwindow, video_width, video_height); result = TRUE; beach: return result; } static GstStateChangeReturn gst_osx_video_sink_change_state (GstElement * element, GstStateChange transition) { GstOSXVideoSink *osxvideosink; GstStateChangeReturn ret; osxvideosink = GST_OSX_VIDEO_SINK (element); GST_DEBUG_OBJECT (osxvideosink, "%s => %s", gst_element_state_get_name(GST_STATE_TRANSITION_CURRENT (transition)), gst_element_state_get_name(GST_STATE_TRANSITION_NEXT (transition))); switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: break; case GST_STATE_CHANGE_READY_TO_PAUSED: /* Creating our window and our image */ GST_VIDEO_SINK_WIDTH (osxvideosink) = 320; GST_VIDEO_SINK_HEIGHT (osxvideosink) = 240; if (!gst_osx_video_sink_osxwindow_create (osxvideosink, GST_VIDEO_SINK_WIDTH (osxvideosink), GST_VIDEO_SINK_HEIGHT (osxvideosink))) { ret = GST_STATE_CHANGE_FAILURE; goto done; } break; default: break; } ret = (GST_ELEMENT_CLASS (parent_class))->change_state (element, transition); switch (transition) { case GST_STATE_CHANGE_PAUSED_TO_READY: GST_VIDEO_SINK_WIDTH (osxvideosink) = 0; GST_VIDEO_SINK_HEIGHT (osxvideosink) = 0; osxvideosink->app_started = FALSE; gst_osx_video_sink_osxwindow_destroy (osxvideosink); break; case GST_STATE_CHANGE_READY_TO_NULL: break; default: break; } done: return ret; } static GstFlowReturn gst_osx_video_sink_show_frame (GstBaseSink * bsink, GstBuffer * buf) { GstOSXVideoSink *osxvideosink; GstBufferObject* bufferobject; NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; osxvideosink = GST_OSX_VIDEO_SINK (bsink); GST_DEBUG ("show_frame"); bufferobject = [[GstBufferObject alloc] initWithBuffer:buf]; gst_osx_video_sink_call_from_main_thread(osxvideosink, osxvideosink->osxvideosinkobject, @selector(showFrame:), bufferobject, NO); [pool release]; return GST_FLOW_OK; } /* Buffer management */ /* =========================================== */ /* */ /* Init & Class init */ /* */ /* =========================================== */ static void gst_osx_video_sink_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstOSXVideoSink *osxvideosink; g_return_if_fail (GST_IS_OSX_VIDEO_SINK (object)); osxvideosink = GST_OSX_VIDEO_SINK (object); switch (prop_id) { case ARG_EMBED: osxvideosink->embed = g_value_get_boolean(value); break; case ARG_FORCE_PAR: osxvideosink->keep_par = g_value_get_boolean(value); if (osxvideosink->osxwindow) [osxvideosink->osxwindow->gstview setKeepAspectRatio: osxvideosink->keep_par]; break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_osx_video_sink_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstOSXVideoSink *osxvideosink; g_return_if_fail (GST_IS_OSX_VIDEO_SINK (object)); osxvideosink = GST_OSX_VIDEO_SINK (object); switch (prop_id) { case ARG_EMBED: g_value_set_boolean (value, osxvideosink->embed); break; case ARG_FORCE_PAR: g_value_set_boolean (value, osxvideosink->keep_par); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_osx_video_sink_init (GstOSXVideoSink * sink) { sink->osxwindow = NULL; sink->superview = NULL; sink->osxvideosinkobject = [[GstOSXVideoSinkObject alloc] initWithSink:sink]; #ifdef RUN_NS_APP_THREAD sink->loop_thread_lock = g_mutex_new (); sink->loop_thread_cond = g_cond_new (); #endif sink->app_started = FALSE; sink->keep_par = FALSE; } static void gst_osx_video_sink_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); gst_element_class_set_static_metadata (element_class, "OSX Video sink", "Sink/Video", "OSX native videosink", "Zaheer Abbas Merali "); gst_element_class_add_pad_template (element_class, gst_static_pad_template_get (&gst_osx_video_sink_sink_template_factory)); } static void gst_osx_video_sink_finalize (GObject *object) { GstOSXVideoSink *osxvideosink = GST_OSX_VIDEO_SINK (object); if (osxvideosink->superview) [osxvideosink->superview release]; if (osxvideosink->osxvideosinkobject) [(GstOSXVideoSinkObject*)(osxvideosink->osxvideosinkobject) release]; G_OBJECT_CLASS (parent_class)->finalize (object); } static void gst_osx_video_sink_class_init (GstOSXVideoSinkClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; GstBaseSinkClass *gstbasesink_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; gstbasesink_class = (GstBaseSinkClass *) klass; parent_class = g_type_class_ref (GST_TYPE_VIDEO_SINK); gobject_class->set_property = gst_osx_video_sink_set_property; gobject_class->get_property = gst_osx_video_sink_get_property; gobject_class->finalize = gst_osx_video_sink_finalize; gstbasesink_class->set_caps = gst_osx_video_sink_setcaps; gstbasesink_class->preroll = gst_osx_video_sink_show_frame; gstbasesink_class->render = gst_osx_video_sink_show_frame; gstelement_class->change_state = gst_osx_video_sink_change_state; /** * GstOSXVideoSink:embed * * Set to #TRUE if you are embedding the video window in an application. * **/ g_object_class_install_property (gobject_class, ARG_EMBED, g_param_spec_boolean ("embed", "embed", "For ABI compatiblity only, do not use", FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); /** * GstOSXVideoSink:force-aspect-ratio * * When enabled, scaling will respect original aspect ratio. * **/ g_object_class_install_property (gobject_class, ARG_FORCE_PAR, g_param_spec_boolean ("force-aspect-ratio", "force aspect ration", "When enabled, scaling will respect original aspect ration", TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); } static void gst_osx_video_sink_navigation_send_event (GstNavigation * navigation, GstStructure * structure) { GstOSXVideoSink *osxvideosink = GST_OSX_VIDEO_SINK (navigation); GstPad *peer; GstEvent *event; GstVideoRectangle src, dst, result; NSRect bounds; gdouble x, y, xscale = 1.0, yscale = 1.0; peer = gst_pad_get_peer (GST_VIDEO_SINK_PAD (osxvideosink)); if (!peer || !osxvideosink->osxwindow) return; event = gst_event_new_navigation (structure); bounds = [osxvideosink->osxwindow->gstview getDrawingBounds]; if (osxvideosink->keep_par) { /* We get the frame position using the calculated geometry from _setcaps that respect pixel aspect ratios */ src.w = GST_VIDEO_SINK_WIDTH (osxvideosink); src.h = GST_VIDEO_SINK_HEIGHT (osxvideosink); dst.w = bounds.size.width; dst.h = bounds.size.height; gst_video_sink_center_rect (src, dst, &result, TRUE); result.x += bounds.origin.x; result.y += bounds.origin.y; } else { result.x = bounds.origin.x; result.y = bounds.origin.y; result.w = bounds.size.width; result.h = bounds.size.height; } /* We calculate scaling using the original video frames geometry to include pixel aspect ratio scaling. */ xscale = (gdouble) osxvideosink->osxwindow->width / result.w; yscale = (gdouble) osxvideosink->osxwindow->height / result.h; /* Converting pointer coordinates to the non scaled geometry */ if (gst_structure_get_double (structure, "pointer_x", &x)) { x = MIN (x, result.x + result.w); x = MAX (x - result.x, 0); gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE, (gdouble) x * xscale, NULL); } if (gst_structure_get_double (structure, "pointer_y", &y)) { y = MIN (y, result.y + result.h); y = MAX (y - result.y, 0); gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE, (gdouble) y * yscale, NULL); } gst_pad_send_event (peer, event); gst_object_unref (peer); } static void gst_osx_video_sink_navigation_init (GstNavigationInterface * iface) { iface->send_event = gst_osx_video_sink_navigation_send_event; } static void gst_osx_video_sink_set_window_handle (GstVideoOverlay * overlay, guintptr handle_id) { GstOSXVideoSink *osxvideosink = GST_OSX_VIDEO_SINK (overlay); gulong window_id = (gulong) handle_id; if (osxvideosink->superview) { GST_INFO_OBJECT (osxvideosink, "old xwindow id %p", osxvideosink->superview); if (osxvideosink->osxwindow) { gst_osx_video_sink_call_from_main_thread(osxvideosink, osxvideosink->osxwindow->gstview, @selector(removeFromSuperview:), (id)nil, YES); } [osxvideosink->superview release]; } GST_INFO_OBJECT (osxvideosink, "set xwindow id 0x%lx", window_id); osxvideosink->superview = [((NSView *) window_id) retain]; if (osxvideosink->osxwindow) { gst_osx_video_sink_call_from_main_thread(osxvideosink, osxvideosink->osxwindow->gstview, @selector(addToSuperview:), osxvideosink->superview, YES); } } static void gst_osx_video_sink_xoverlay_init (GstVideoOverlayInterface * iface) { iface->set_window_handle = gst_osx_video_sink_set_window_handle; iface->expose = NULL; iface->handle_events = NULL; } /* ============================================================= */ /* */ /* Public Methods */ /* */ /* ============================================================= */ /* =========================================== */ /* */ /* Object typing & Creation */ /* */ /* =========================================== */ GType gst_osx_video_sink_get_type (void) { static GType osxvideosink_type = 0; if (!osxvideosink_type) { static const GTypeInfo osxvideosink_info = { sizeof (GstOSXVideoSinkClass), gst_osx_video_sink_base_init, NULL, (GClassInitFunc) gst_osx_video_sink_class_init, NULL, NULL, sizeof (GstOSXVideoSink), 0, (GInstanceInitFunc) gst_osx_video_sink_init, }; static const GInterfaceInfo overlay_info = { (GInterfaceInitFunc) gst_osx_video_sink_xoverlay_init, NULL, NULL, }; static const GInterfaceInfo navigation_info = { (GInterfaceInitFunc) gst_osx_video_sink_navigation_init, NULL, NULL, }; osxvideosink_type = g_type_register_static (GST_TYPE_VIDEO_SINK, "GstOSXVideoSink", &osxvideosink_info, 0); g_type_add_interface_static (osxvideosink_type, GST_TYPE_VIDEO_OVERLAY, &overlay_info); g_type_add_interface_static (osxvideosink_type, GST_TYPE_NAVIGATION, &navigation_info); } return osxvideosink_type; } @implementation GstWindowDelegate - (id) initWithSink: (GstOSXVideoSink *) sink { self = [super init]; self->osxvideosink = sink; return self; } - (void)windowWillClose:(NSNotification *)notification { /* Only handle close events if the window was closed manually by the user * and not becuase of a state change state to READY */ if (!osxvideosink->osxwindow->closed) { osxvideosink->osxwindow->closed = TRUE; GST_ELEMENT_ERROR (osxvideosink, RESOURCE, NOT_FOUND, ("Output window was closed"), (NULL)); gst_osx_video_sink_osxwindow_destroy(osxvideosink); } } @end @ implementation GstOSXVideoSinkObject -(id) initWithSink: (GstOSXVideoSink*) sink { self = [super init]; self->osxvideosink = sink; return self; } -(void) createInternalWindow { GstOSXWindow *osxwindow = osxvideosink->osxwindow; ProcessSerialNumber psn; NSRect rect; unsigned int mask; osxwindow->internal = TRUE; mask = NSTitledWindowMask | NSClosableWindowMask | NSResizableWindowMask | NSTexturedBackgroundWindowMask | NSMiniaturizableWindowMask; rect.origin.x = 100.0; rect.origin.y = 100.0; rect.size.width = (float) osxwindow->width; rect.size.height = (float) osxwindow->height; #ifndef RUN_NS_APP_THREAD if (!osxvideosink->app_started) { [NSApplication sharedApplication]; [NSApp finishLaunching]; osxvideosink->app_started = TRUE; } #endif if (!GetCurrentProcess(&psn)) { TransformProcessType(&psn, kProcessTransformToForegroundApplication); SetFrontProcess(&psn); } osxwindow->win =[[GstOSXVideoSinkWindow alloc] initWithContentNSRect: rect styleMask: mask backing: NSBackingStoreBuffered defer: NO screen: nil]; GST_DEBUG("VideoSinkWindow created, %p", osxwindow->win); [osxwindow->win makeKeyAndOrderFront:NSApp]; osxwindow->gstview =[osxwindow->win gstView]; [osxwindow->win setDelegate:[[GstWindowDelegate alloc] initWithSink:osxvideosink]]; } #ifdef RUN_NS_APP_THREAD + (BOOL) isMainThread { /* FIXME: ideally we should return YES only for ->ns_app_thread here */ return YES; } #endif - (void) resize { GstOSXWindow *osxwindow = osxvideosink->osxwindow; NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; GST_INFO_OBJECT (osxvideosink, "resizing"); [osxwindow->gstview setVideoSize:osxwindow->width :osxwindow->height]; GST_INFO_OBJECT (osxvideosink, "done"); [pool release]; } - (void) showFrame: (GstBufferObject *) object { GstMapInfo info; guint8 *viewdata; NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; GstBuffer *buf = object->buf; if (!destroyed) { gst_buffer_map (buf, &info, GST_MAP_READ); viewdata = (guint8 *) [osxvideosink->osxwindow->gstview getTextureBuffer]; memcpy (viewdata, info.data, info.size); [osxvideosink->osxwindow->gstview displayTexture]; gst_buffer_unmap (buf, &info); } [object release]; [pool release]; } -(void) destroy { NSAutoreleasePool *pool; pool = [[NSAutoreleasePool alloc] init]; destroyed = TRUE; if (osxvideosink->osxwindow) { if (osxvideosink->superview) { [osxvideosink->osxwindow->gstview removeFromSuperview]; } [osxvideosink->osxwindow->gstview release]; if (osxvideosink->osxwindow->internal) { if (!osxvideosink->osxwindow->closed) { osxvideosink->osxwindow->closed = TRUE; [osxvideosink->osxwindow->win release]; } } g_free (osxvideosink->osxwindow); osxvideosink->osxwindow = NULL; } [pool release]; } #ifdef RUN_NS_APP_THREAD -(void) nsAppThread { NSAutoreleasePool *pool; GstOSXVideoSink *sink = osxvideosink; /* set the main runloop as the runloop for the current thread. This has the * effect that calling NSApp nextEventMatchingMask:untilDate:inMode:dequeue * runs the main runloop. */ _CFRunLoopSetCurrent(CFRunLoopGetMain()); /* this is needed to make IsMainThread checks in core foundation work from the * current thread */ _CFMainPThread = pthread_self(); pool = [[NSAutoreleasePool alloc] init]; [NSApplication sharedApplication]; [NSApp finishLaunching]; g_mutex_lock (sink->loop_thread_lock); sink->app_started = TRUE; g_cond_signal (sink->loop_thread_cond); g_mutex_unlock (sink->loop_thread_lock); /* run the loop */ run_ns_app_loop (); [pool release]; } #endif @end @ implementation GstBufferObject -(id) initWithBuffer: (GstBuffer*) buffer { self = [super init]; gst_buffer_ref(buffer); self->buf = buffer; return self; } -(void) dealloc{ gst_buffer_unref(buf); [super dealloc]; } @end static gboolean plugin_init (GstPlugin * plugin) { if (!gst_element_register (plugin, "osxvideosink", GST_RANK_PRIMARY, GST_TYPE_OSX_VIDEO_SINK)) return FALSE; GST_DEBUG_CATEGORY_INIT (gst_debug_osx_video_sink, "osxvideosink", 0, "osxvideosink element"); return TRUE; } GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, osxvideo, "OSX native video output plugin", plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)