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/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@centricular.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.
*/
#include <gst/gst.h>
#include <Cocoa/Cocoa.h>
#include <QuartzCore/QuartzCore.h>
#include <CoreFoundation/CoreFoundation.h>
#include <CoreMedia/CoreMedia.h>
#if MAC_OS_X_VERSION_MAX_ALLOWED < 101200
#define NSWindowStyleMaskBorderless NSBorderlessWindowMask
#endif
static NSRunLoop *loop;
static int quit = 0;
static void
end_stream_cb(GstBus* bus, GstMessage* message, GstElement* pipeline)
{
switch (GST_MESSAGE_TYPE (message))
{
case GST_MESSAGE_EOS:
g_print ("End of stream\n");
g_atomic_int_set (&quit, 1);;
CFRunLoopStop ([loop getCFRunLoop]);
break;
case GST_MESSAGE_ERROR:
{
gchar *debug = NULL;
GError *err = NULL;
gst_message_parse_error (message, &err, &debug);
g_print ("Error: %s\n", err->message);
g_error_free (err);
if (debug)
{
g_print ("Debug details: %s\n", debug);
g_free (debug);
}
g_atomic_int_set (&quit, 1);;
CFRunLoopStop ([loop getCFRunLoop]);
break;
}
default:
break;
}
}
gint main (gint argc, gchar *argv[])
{
CALayer *layer;
loop = [NSRunLoop currentRunLoop];
gst_init (&argc, &argv);
[NSApplication sharedApplication];
GstElement* pipeline = gst_pipeline_new ("pipeline");
GstElement* videosrc = gst_element_factory_make ("videotestsrc", NULL);
GstElement* videosink = gst_element_factory_make ("avsamplebufferlayersink", NULL);
GstCaps *caps = gst_caps_from_string ("video/x-raw,format=UYVY");
gst_bin_add_many (GST_BIN (pipeline), videosrc, videosink, NULL);
gboolean link_ok = gst_element_link_filtered (videosrc, videosink, caps);
gst_caps_unref (caps);
if (!link_ok) {
g_critical ("Failed to link an element!\n") ;
return -1;
}
g_object_set (videosrc, "num-buffers", 500, NULL);
GstBus* bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_element_set_state (pipeline, GST_STATE_READY);
gst_element_get_state (pipeline, NULL, NULL, GST_CLOCK_TIME_NONE);
g_object_get (videosink, "layer", &layer, NULL);
NSWindow *window = [[NSWindow alloc] initWithContentRect:NSMakeRect (0, 0, 320, 240)
styleMask:NSWindowStyleMaskBorderless backing:NSBackingStoreBuffered defer:NO];
[window setOpaque:NO];
[window.contentView setWantsLayer:YES];
NSView *view = [window.contentView superview];
[view setLayer:layer];
gst_element_set_state(pipeline, GST_STATE_PLAYING);
[window orderFront:window];
while (!g_atomic_int_get (&quit) && [loop runMode:NSDefaultRunLoopMode
beforeDate:[NSDate distantPast]]) {
GstMessage *msg;
while ((msg = gst_bus_timed_pop (bus, 1 * GST_MSECOND)))
end_stream_cb (bus, msg, pipeline);
}
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_object_unref (bus);
gst_object_unref (pipeline);
return 0;
}
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