configure.ac: Check for an Objective C compiler

Original commit message from CVS:
* configure.ac:
Check for an Objective C compiler
* sys/Makefile.am:
* sys/osxvideo/Makefile.am:
* sys/osxvideo/cocoawindow.h:
* sys/osxvideo/cocoawindow.m:
* sys/osxvideo/osxvideosink.h:
* sys/osxvideo/osxvideosink.m:
Port of osxvideo plugin to 0.10. Do NOT consider 100% stable !
Fixes #402470

1 files changed, 474 insertions, 0 deletions

diff --git a/sys/osxvideo/osxvideosink.m b/sys/osxvideo/osxvideosink.m
new file mode 100644
index 00000000..f3f09975
--- /dev/null
+++ b/sys/osxvideo/osxvideosink.m
@@ -0,0 +1,474 @@
+/* GStreamer
+ * OSX video sink
+ * Copyright (C) 2004-6 Zaheer Abbas Merali <zaheerabbas at merali dot org>
+ *
+ * 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.
+ */
+
+#include "config.h"
+
+/* Object header */
+#include "osxvideosink.h"
+
+#import "cocoawindow.h"
+
+/* Debugging category */
+GST_DEBUG_CATEGORY (gst_debug_osx_video_sink);
+#define GST_CAT_DEFAULT gst_debug_osx_video_sink
+
+/* ElementFactory information */
+static const GstElementDetails gst_osx_video_sink_details =
+GST_ELEMENT_DETAILS ("OSX Video sink",
+    "Sink/Video",
+    "OSX native videosink",
+    "Zaheer Abbas Merali <zaheerabbas at merali dot org>");
+
+/* Default template - initiated with class struct to allow gst-register to work
+   without X running */
+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-yuv, "
+        "framerate = (fraction) [ 0, MAX ], "
+        "width = (int) [ 1, MAX ], "
+	"height = (int) [ 1, MAX ], "
+        "format = (fourcc) UYVY")
+    );
+
+enum
+{
+  ARG_0,
+  ARG_EMBED,
+  ARG_FULLSCREEN
+      /* FILL ME */
+};
+
+static GstVideoSinkClass *parent_class = NULL;
+
+/* cocoa event loop - needed if not run in own app */
+gpointer
+cocoa_event_loop (GstOSXVideoSink * vsink)
+{
+  GST_DEBUG_OBJECT (vsink, "About to start cocoa event loop");
+
+  [NSApp run];
+
+  GST_DEBUG_OBJECT (vsink, "Cocoa event loop ended");
+
+  return NULL;
+}
+
+/* This function handles osx window creation */
+static GstOSXWindow *
+gst_osx_video_sink_osxwindow_new (GstOSXVideoSink * osxvideosink, gint width,
+    gint height)
+{
+  NSRect rect;
+  GstOSXWindow *osxwindow = NULL;
+
+  g_return_val_if_fail (GST_IS_OSX_VIDEO_SINK (osxvideosink), NULL);
+
+  osxwindow = g_new0 (GstOSXWindow, 1);
+
+  osxwindow->width = width;
+  osxwindow->height = height;
+  osxwindow->internal = TRUE;
+
+  if (osxvideosink->embed == FALSE) {
+    NSAutoreleasePool *pool;
+
+    rect.origin.x = 100.0;
+    rect.origin.y = 100.0;
+    rect.size.width = (float) osxwindow->width;
+    rect.size.height = (float) osxwindow->height;
+
+    pool =[[NSAutoreleasePool alloc] init];
+
+    [NSApplication sharedApplication];
+    osxwindow->win =[[GstOSXVideoSinkWindow alloc] initWithContentRect: rect styleMask: NSTitledWindowMask | NSClosableWindowMask | NSMiniaturizableWindowMask backing: NSBackingStoreBuffered defer: NO screen:nil];
+    [osxwindow->win makeKeyAndOrderFront:NSApp];
+    osxwindow->gstview =[osxwindow->win gstView];
+    if (osxvideosink->fullscreen)
+      [osxwindow->gstview setFullScreen:YES];
+
+    [pool release];
+
+    /* Start Cocoa event loop */
+    g_thread_create ((GThreadFunc) cocoa_event_loop, osxvideosink, FALSE, NULL);
+  } else {
+    /* Needs to be embedded */
+
+    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];
+    /* send signal 
+       FIXME: need to send a bus message */
+    /*g_signal_emit (G_OBJECT(osxvideosink),
+       gst_osx_video_sink_signals[SIGNAL_VIEW_CREATED], 0,
+       osxwindow->gstview); */
+  }
+  return osxwindow;
+}
+
+/* This function destroys a GstXWindow */
+static void
+gst_osx_video_sink_osxwindow_destroy (GstOSXVideoSink * osxvideosink,
+    GstOSXWindow * osxwindow)
+{
+  g_return_if_fail (osxwindow != NULL);
+  g_return_if_fail (GST_IS_OSX_VIDEO_SINK (osxvideosink));
+
+  g_free (osxwindow);
+}
+
+/* This function resizes a GstXWindow */
+static void
+gst_osx_video_sink_osxwindow_resize (GstOSXVideoSink * osxvideosink,
+    GstOSXWindow * osxwindow, guint width, guint height)
+{
+  NSSize size;
+
+  g_return_if_fail (osxwindow != NULL);
+  g_return_if_fail (GST_IS_OSX_VIDEO_SINK (osxvideosink));
+
+  //SizeWindow (osxwindow->win, width, height, 1);
+  osxwindow->width = width;
+  osxwindow->height = height;
+
+  size.width = width;
+  size.height = height;
+  /* Call relevant cocoa function to resize window */
+[osxwindow->win setContentSize:size];
+}
+
+static void
+gst_osx_video_sink_osxwindow_clear (GstOSXVideoSink * osxvideosink,
+    GstOSXWindow * osxwindow)
+{
+
+  g_return_if_fail (osxwindow != NULL);
+  g_return_if_fail (GST_IS_OSX_VIDEO_SINK (osxvideosink));
+
+}
+
+
+/* Element stuff */
+static gboolean
+gst_osx_video_sink_setcaps (GstBaseSink * bsink, GstCaps * caps)
+{
+  GstOSXVideoSink *osxvideosink;
+  GstStructure *structure;
+  gboolean res, result = FALSE;
+  gint video_width, video_height;
+  const GValue *framerate;
+
+  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);
+  framerate = gst_structure_get_value (structure, "framerate");
+  res &= (framerate != NULL);
+
+  if (!res) {
+    goto beach;
+  }
+
+  osxvideosink->fps_n = gst_value_get_fraction_numerator (framerate);
+  osxvideosink->fps_d = gst_value_get_fraction_denominator (framerate);
+
+  GST_DEBUG_OBJECT (osxvideosink, "our format is: %dx%d video at %d/%d fps",
+      video_width, video_height, osxvideosink->fps_n, osxvideosink->fps_d);
+
+  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;
+
+  osxvideosink = GST_OSX_VIDEO_SINK (element);
+
+  switch (transition) {
+    case GST_STATE_CHANGE_NULL_TO_READY:
+      /* Creating our window and our image */
+      if (!osxvideosink->osxwindow) {
+        GST_VIDEO_SINK_WIDTH (osxvideosink) = 320;
+        GST_VIDEO_SINK_HEIGHT (osxvideosink) = 240;
+        osxvideosink->osxwindow =
+            gst_osx_video_sink_osxwindow_new (osxvideosink,
+            GST_VIDEO_SINK_WIDTH (osxvideosink),
+            GST_VIDEO_SINK_HEIGHT (osxvideosink));
+        gst_osx_video_sink_osxwindow_clear (osxvideosink,
+            osxvideosink->osxwindow);
+      } else {
+        if (osxvideosink->osxwindow->internal)
+          gst_osx_video_sink_osxwindow_resize (osxvideosink,
+              osxvideosink->osxwindow, GST_VIDEO_SINK_WIDTH (osxvideosink),
+              GST_VIDEO_SINK_HEIGHT (osxvideosink));
+      }
+      break;
+    case GST_STATE_CHANGE_READY_TO_PAUSED:
+      GST_DEBUG ("ready to paused");
+      if (osxvideosink->osxwindow)
+        gst_osx_video_sink_osxwindow_clear (osxvideosink,
+            osxvideosink->osxwindow);
+      osxvideosink->time = 0;
+      break;
+    case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+      break;
+    case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+      break;
+    case GST_STATE_CHANGE_PAUSED_TO_READY:
+      osxvideosink->fps_n = 0;
+      osxvideosink->fps_d = 0;
+      osxvideosink->sw_scaling_failed = FALSE;
+      GST_VIDEO_SINK_WIDTH (osxvideosink) = 0;
+      GST_VIDEO_SINK_HEIGHT (osxvideosink) = 0;
+      break;
+    case GST_STATE_CHANGE_READY_TO_NULL:
+
+      if (osxvideosink->osxwindow) {
+        gst_osx_video_sink_osxwindow_destroy (osxvideosink,
+            osxvideosink->osxwindow);
+        osxvideosink->osxwindow = NULL;
+      }
+      break;
+  }
+
+  return (GST_ELEMENT_CLASS (parent_class))->change_state (element, transition);
+
+}
+
+static GstFlowReturn
+gst_osx_video_sink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
+{
+  GstOSXVideoSink *osxvideosink;
+
+  osxvideosink = GST_OSX_VIDEO_SINK (bsink);
+
+  char *viewdata =[osxvideosink->osxwindow->gstview getTextureBuffer];
+
+  GST_DEBUG ("show_frame");
+  memcpy (viewdata, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
+  [osxvideosink->osxwindow->gstview displayTexture];
+
+  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_FULLSCREEN:
+      osxvideosink->fullscreen = g_value_get_boolean (value);
+      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_FULLSCREEN:
+      g_value_set_boolean (value, osxvideosink->fullscreen);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_osx_video_sink_dispose (GObject * object)
+{
+  GstOSXVideoSink *osxvideosink;
+
+  osxvideosink = GST_OSX_VIDEO_SINK (object);
+
+  g_mutex_free (osxvideosink->pool_lock);
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gst_osx_video_sink_init (GstOSXVideoSink * osxvideosink)
+{
+
+
+  osxvideosink->osxwindow = NULL;
+
+
+  osxvideosink->fps_n = 0;
+  osxvideosink->fps_d = 0;
+
+  osxvideosink->pixel_width = osxvideosink->pixel_height = 1;
+  osxvideosink->sw_scaling_failed = FALSE;
+  osxvideosink->embed = FALSE;
+  osxvideosink->fullscreen = FALSE;
+
+}
+
+static void
+gst_osx_video_sink_base_init (gpointer g_class)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
+
+  gst_element_class_set_details (element_class, &gst_osx_video_sink_details);
+
+  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_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->dispose = gst_osx_video_sink_dispose;
+  gobject_class->set_property = gst_osx_video_sink_set_property;
+  gobject_class->get_property = gst_osx_video_sink_get_property;
+
+  //gstbasesink_class->get_times = gst_osx_video_sink_get_times;
+  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;
+
+  g_object_class_install_property (gobject_class, ARG_EMBED,
+      g_param_spec_boolean ("embed", "embed", "When enabled, it  "
+          "can be embedded", FALSE, G_PARAM_READWRITE));
+  g_object_class_install_property (gobject_class, ARG_FULLSCREEN,
+      g_param_spec_boolean ("fullscreen", "fullscreen",
+          "When enabled, the view  " "is fullscreen", FALSE,
+          G_PARAM_READWRITE));
+}
+
+/* ============================================================= */
+/*                                                               */
+/*                       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,
+    };
+
+    osxvideosink_type = g_type_register_static (GST_TYPE_VIDEO_SINK,
+        "GstOSXVideoSink", &osxvideosink_info, 0);
+
+  }
+
+  return osxvideosink_type;
+}
+
+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)