gstreamer/subprojects/gst-plugins-good/sys/osxvideo/osxvideosink.m
Piotr Brzeziński 5e45a1b1bd macos: Set activation policy in osxvideosink and glimagesink
Upon creating a window, glimagesink and osxvideosink now set the policy to
NSApplicationActivationPolicyRegular, which lets us show an icon in the Dock
for convenience and appear in the top menu bar like other apps.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4573>
2023-05-12 01:14:44 +02:00

839 lines
24 KiB
Objective-C

/* GStreamer
* OSX video sink
* Copyright (C) 2004-6 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* Copyright (C) 2007,2008,2009 Pioneers of the Inevitable <songbird@songbirdnest.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, 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.
*
*/
#include "config.h"
#include <gst/video/videooverlay.h>
#include <gst/video/navigation.h>
#include <gst/video/video.h>
#include "osxvideosink.h"
#include <unistd.h>
#import "cocoawindow.h"
GST_DEBUG_CATEGORY (gst_debug_osx_video_sink);
#define GST_CAT_DEFAULT gst_debug_osx_video_sink
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 GstOSXVideoSinkClass *sink_class = NULL;
static GstVideoSinkClass *parent_class = NULL;
#if MAC_OS_X_VERSION_MAX_ALLOWED < 101200
#define NSEventMaskAny NSAnyEventMask
#define NSWindowStyleMaskTitled NSTitledWindowMask
#define NSWindowStyleMaskClosable NSClosableWindowMask
#define NSWindowStyleMaskResizable NSResizableWindowMask
#define NSWindowStyleMaskTexturedBackground NSTexturedBackgroundWindowMask
#define NSWindowStyleMaskMiniaturizable NSMiniaturizableWindowMask
#endif
/* 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)
{
NSThread *thread;
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
if (sink_class->ns_app_thread == NULL){
thread = [NSThread mainThread];
} else {
thread = sink_class->ns_app_thread;
}
[object performSelector:function onThread:thread
withObject:data waitUntilDone:waitUntilDone];
[pool release];
}
/* 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;
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;
osxwindow->internal = 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];
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 {
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.");
}
gst_osx_video_sink_call_from_main_thread (osxvideosink, osxvideosink->osxvideosinkobject,
@selector(setActivationPolicy), nil, YES);
[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);
[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);
gst_video_info_from_caps (&osxvideosink->info, caps);
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;
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:
g_warning ("The \"embed\" property of osxvideosink is deprecated and "
"has no effect anymore. Use the GstVideoOverlay "
"instead.");
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, FALSE);
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 gboolean
gst_osx_video_sink_propose_allocation (GstBaseSink * base_sink, GstQuery * query)
{
gst_query_add_allocation_meta (query,
GST_VIDEO_META_API_TYPE, NULL);
return TRUE;
}
static void
gst_osx_video_sink_init (GstOSXVideoSink * sink)
{
if ([[NSRunLoop mainRunLoop] currentMode] == nil)
g_warning ("An NSRunLoop needs to be running on the main thread "
"to ensure correct behaviour on macOS. Use gst_macos_main() or call "
"[NSApplication sharedApplication] in your code before using this element.");
sink->osxwindow = NULL;
sink->superview = NULL;
sink->osxvideosinkobject = [[GstOSXVideoSinkObject alloc] initWithSink:sink];
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, "macOS Video sink",
"Sink/Video", "macOS native videosink",
"Zaheer Abbas Merali <zaheerabbas at merali dot org>");
gst_element_class_add_static_pad_template (element_class, &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);
sink_class = klass;
klass->run_loop_state = GST_OSX_VIDEO_SINK_RUN_LOOP_STATE_UNKNOWN;
klass->ns_app_thread = NULL;
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;
gstbasesink_class->propose_allocation = gst_osx_video_sink_propose_allocation;
gstelement_class->change_state = gst_osx_video_sink_change_state;
g_object_class_install_property (gobject_class, ARG_EMBED,
g_param_spec_boolean ("embed", "embed", "For ABI compatibility only, do not use",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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 = { 0, };
GstVideoRectangle dst = { 0, };
GstVideoRectangle 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);
NSView *view = (NSView *) handle_id;
gst_osx_video_sink_call_from_main_thread (osxvideosink,
osxvideosink->osxvideosinkobject,
@selector(setView:), view, 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 because of a state change state to READY */
if (osxvideosink->osxwindow == NULL) {
return;
}
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 = gst_object_ref (sink);
return self;
}
-(void) dealloc {
gst_object_unref (osxvideosink);
[super dealloc];
}
-(void) createInternalWindow
{
GstOSXWindow *osxwindow = osxvideosink->osxwindow;
NSRect rect;
unsigned int mask;
[NSApplication sharedApplication];
osxwindow->internal = TRUE;
mask = NSWindowStyleMaskTitled |
NSWindowStyleMaskClosable |
NSWindowStyleMaskResizable |
NSWindowStyleMaskTexturedBackground |
NSWindowStyleMaskMiniaturizable;
rect.origin.x = 100.0;
rect.origin.y = 100.0;
rect.size.width = (float) osxwindow->width;
rect.size.height = (float) osxwindow->height;
osxwindow->win =[[[GstOSXVideoSinkWindow alloc]
initWithContentNSRect: rect
styleMask: mask
backing: NSBackingStoreBuffered
defer: NO
screen: nil] retain];
GST_DEBUG("VideoSinkWindow created, %p", osxwindow->win);
[osxwindow->win orderFrontRegardless];
osxwindow->gstview =[osxwindow->win gstView];
[osxwindow->win setDelegate:[[GstWindowDelegate alloc]
initWithSink:osxvideosink]];
}
- (void) setActivationPolicy
{
[NSApp setActivationPolicy: NSApplicationActivationPolicyRegular];
}
- (void) setView: (NSView*)view
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
if (osxvideosink->superview) {
GST_INFO_OBJECT (osxvideosink, "old xwindow id %p", osxvideosink->superview);
if (osxvideosink->osxwindow) {
[osxvideosink->osxwindow->gstview removeFromSuperview];
}
[osxvideosink->superview release];
}
if (osxvideosink->osxwindow != NULL && view != NULL) {
if (osxvideosink->osxwindow->internal) {
GST_INFO_OBJECT (osxvideosink, "closing internal window");
osxvideosink->osxwindow->closed = TRUE;
[osxvideosink->osxwindow->win close];
[osxvideosink->osxwindow->win release];
}
}
GST_INFO_OBJECT (osxvideosink, "set xwindow id %p", view);
osxvideosink->superview = [view retain];
if (osxvideosink->osxwindow) {
[osxvideosink->osxwindow->gstview addToSuperview: osxvideosink->superview];
if (view) {
osxvideosink->osxwindow->internal = FALSE;
}
}
[pool release];
}
- (void) resize
{
GstOSXWindow *osxwindow = osxvideosink->osxwindow;
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
GST_INFO_OBJECT (osxvideosink, "resizing");
NSSize size = {osxwindow->width, osxwindow->height};
if (osxwindow->internal) {
[osxwindow->win setContentSize:size];
}
if (osxwindow->gstview) {
[osxwindow->gstview setVideoSize :(int)osxwindow->width :(int)osxwindow->height];
}
GST_INFO_OBJECT (osxvideosink, "done");
[pool release];
}
- (void) showFrame: (GstBufferObject *) object
{
GstVideoFrame frame;
guint8 *readp, *writep;
gint i, active_width, stride;
guint8 *texture_buffer;
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
GstBuffer *buf = object->buf;
GST_OBJECT_LOCK (osxvideosink);
if (osxvideosink->osxwindow == NULL)
goto no_window;
texture_buffer = (guint8 *) [osxvideosink->osxwindow->gstview getTextureBuffer];
if (G_UNLIKELY (texture_buffer == NULL))
goto no_texture_buffer;
if (!gst_video_frame_map (&frame, &osxvideosink->info, buf, GST_MAP_READ))
goto no_map;
readp = GST_VIDEO_FRAME_PLANE_DATA (&frame, 0);
stride = GST_VIDEO_FRAME_PLANE_STRIDE (&frame, 0);
writep = texture_buffer;
active_width = GST_VIDEO_SINK_WIDTH (osxvideosink) * sizeof (short);
for (i = 0; i < GST_VIDEO_SINK_HEIGHT (osxvideosink); i++) {
memcpy (writep, readp, active_width);
writep += active_width;
readp += stride;
}
[osxvideosink->osxwindow->gstview displayTexture];
gst_video_frame_unmap (&frame);
out:
GST_OBJECT_UNLOCK (osxvideosink);
[object release];
[pool release];
return;
no_map:
GST_WARNING_OBJECT (osxvideosink, "couldn't map frame");
goto out;
no_window:
GST_WARNING_OBJECT (osxvideosink, "not showing frame since we have no window (!?)");
goto out;
no_texture_buffer:
GST_ELEMENT_ERROR (osxvideosink, RESOURCE, WRITE, (NULL),
("the texture buffer is NULL"));
goto out;
}
-(void) destroy
{
NSAutoreleasePool *pool;
GstOSXWindow *osxwindow;
pool = [[NSAutoreleasePool alloc] init];
GST_OBJECT_LOCK (osxvideosink);
osxwindow = osxvideosink->osxwindow;
osxvideosink->osxwindow = NULL;
if (osxwindow) {
if (osxvideosink->superview) {
[osxwindow->gstview removeFromSuperview];
}
[osxwindow->gstview release];
if (osxwindow->internal) {
if (!osxwindow->closed) {
osxwindow->closed = TRUE;
[osxwindow->win close];
[osxwindow->win release];
}
}
g_free (osxwindow);
}
GST_OBJECT_UNLOCK (osxvideosink);
[pool release];
}
@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_MARGINAL, 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)