qtkit: drop the qtkitvideosrc element

The QTKit framework had been deprecated for long in favour of AVFundation
framework and we already have avfvideosrc that provides the same
functionality.

https://bugzilla.gnome.org/show_bug.cgi?id=782078

5 files changed, 0 insertions, 823 deletions

diff --git a/configure.ac b/configure.ac
index dc2425ee5..01083718e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -528,7 +528,6 @@ dnl *** plug-ins to exclude ***
 AC_CHECK_HEADER(AVFoundation/AVFoundation.h, HAVE_AVFOUNDATION="yes", HAVE_AVFOUNDATION="no", [-])
 AC_CHECK_HEADER(MobileCoreServices/MobileCoreServices.h, HAVE_IOS="yes", HAVE_IOS="no", [-])
 AC_CHECK_HEADER(VideoToolbox/VideoToolbox.h, HAVE_VIDEOTOOLBOX="yes", HAVE_VIDEOTOOLBOX="no", [-])
-AC_CHECK_HEADER(QTKit/QTKit.h, HAVE_QTKIT="yes", HAVE_QTKIT="no", [-])
 
 if test "x$HAVE_VIDEOTOOLBOX" = "xyes"; then
   old_LIBS=$LIBS
@@ -555,10 +554,6 @@ if test "x$HAVE_VIDEOTOOLBOX" = "xyes"; then
   AC_DEFINE(HAVE_VIDEOTOOLBOX, 1, [Define if building with VideoToolbox])
 fi
 
-AM_CONDITIONAL(HAVE_QTKIT, test "x$HAVE_QTKIT" = "xyes")
-if test "x$HAVE_QTKIT" = "xyes"; then
-  AC_DEFINE(HAVE_QTKIT, 1, [Define if building with QTKit])
-fi
 dnl disable gst plugins we might not be able to build on this
 dnl platform: (ugly but minimally invasive)
 dnl FIXME: maybe move to sys, or make work with winsock2
diff --git a/sys/applemedia/Makefile.am b/sys/applemedia/Makefile.am
index c2720cf50..e680bce28 100644
--- a/sys/applemedia/Makefile.am
+++ b/sys/applemedia/Makefile.am
@@ -65,7 +65,6 @@ libgstapplemedia_la_LDFLAGS =			\
 	-Wl,-framework -Wl,AudioToolbox
 
 noinst_HEADERS =				\
-	qtkitvideosrc.h				\
 	avfvideosrc.h				\
 	avsamplevideosink.h			\
 	vtenc.h					\
@@ -104,14 +103,6 @@ libgstapplemedia_la_LDFLAGS +=			\
 
 endif
 
-if HAVE_QTKIT
-libgstapplemedia_la_SOURCES +=			\
-	qtkitvideosrc.m
-
-libgstapplemedia_la_LDFLAGS +=			\
-	-Wl,-framework -Wl,QTKit
-endif
-
 if HAVE_AVFOUNDATION
 
 libgstapplemedia_la_SOURCES +=			\
diff --git a/sys/applemedia/plugin.m b/sys/applemedia/plugin.m
index 05c279568..76b7f807b 100644
--- a/sys/applemedia/plugin.m
+++ b/sys/applemedia/plugin.m
@@ -27,9 +27,6 @@
 #include "iosassetsrc.h"
 #include "iosglmemory.h"
 #endif
-#ifdef HAVE_QTKIT
-#include "qtkitvideosrc.h"
-#endif
 #ifdef HAVE_AVFOUNDATION
 #include "avfvideosrc.h"
 #include "avfassetsrc.h"
@@ -76,11 +73,6 @@ plugin_init (GstPlugin * plugin)
   enable_mt_mode ();
 #endif
 
-#ifdef HAVE_QTKIT
-  res = gst_element_register (plugin, "qtkitvideosrc", GST_RANK_SECONDARY,
-      GST_TYPE_QTKIT_VIDEO_SRC);
-#endif
-
 #ifdef HAVE_AVFOUNDATION
   res &= gst_element_register (plugin, "avfvideosrc", AV_RANK,
       GST_TYPE_AVF_VIDEO_SRC);
diff --git a/sys/applemedia/qtkitvideosrc.h b/sys/applemedia/qtkitvideosrc.h
deleted file mode 100644
index 5c45deb70..000000000
--- a/sys/applemedia/qtkitvideosrc.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright (C) 2009 Ole André Vadla Ravnås <oleavr@soundrop.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.
- */
-
-#ifndef __GST_QTKIT_VIDEO_SRC_H__
-#define __GST_QTKIT_VIDEO_SRC_H__
-
-#include <gst/base/gstpushsrc.h>
-
-G_BEGIN_DECLS
-
-#define GST_TYPE_QTKIT_VIDEO_SRC \
-  (gst_qtkit_video_src_get_type ())
-#define GST_QTKIT_VIDEO_SRC(obj) \
-  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_QTKIT_VIDEO_SRC, GstQTKitVideoSrc))
-#define GST_QTKIT_VIDEO_SRC_CAST(obj) \
-  ((GstQTKitVideoSrc *) (obj))
-#define GST_QTKIT_VIDEO_SRC_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_QTKIT_VIDEO_SRC, GstQTKitVideoSrcClass))
-#define GST_QTKIT_VIDEO_SRC_IMPL(obj) \
-  ((GstQTKitVideoSrcImpl *) GST_QTKIT_VIDEO_SRC_CAST (obj)->impl)
-#define GST_IS_QTKIT_VIDEO_SRC(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_QTKIT_VIDEO_SRC))
-#define GST_IS_QTKIT_VIDEO_SRC_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_QTKIT_VIDEO_SRC))
-
-typedef struct _GstQTKitVideoSrc         GstQTKitVideoSrc;
-typedef struct _GstQTKitVideoSrcClass    GstQTKitVideoSrcClass;
-
-struct _GstQTKitVideoSrc
-{
-  GstPushSrc push_src;
-
-  gpointer impl;
-};
-
-struct _GstQTKitVideoSrcClass
-{
-  GstPushSrcClass parent_class;
-};
-
-GType gst_qtkit_video_src_get_type (void);
-
-G_END_DECLS
-
-#endif /* __GST_QTKIT_VIDEO_SRC_H__ */
diff --git a/sys/applemedia/qtkitvideosrc.m b/sys/applemedia/qtkitvideosrc.m
deleted file mode 100644
index a69e70f55..000000000
--- a/sys/applemedia/qtkitvideosrc.m
+++ /dev/null
@@ -1,740 +0,0 @@
-/*
- * Copyright (C) 2009 Ole André Vadla Ravnås <oleavr@soundrop.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 "qtkitvideosrc.h"
-#import "corevideobuffer.h"
-#include "glcontexthelper.h"
-
-#import <QTKit/QTKit.h>
-
-#define DEFAULT_DEVICE_INDEX  -1
-
-#define DEVICE_YUV_FOURCC     "UYVY"
-#define DEVICE_FPS_N          30
-#define DEVICE_FPS_D          1
-
-#define FRAME_QUEUE_SIZE      2
-
-GST_DEBUG_CATEGORY (gst_qtkit_video_src_debug);
-#define GST_CAT_DEFAULT gst_qtkit_video_src_debug
-
-static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
-    GST_PAD_SRC,
-    GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (
-        "video/x-raw, "
-            "format =" DEVICE_YUV_FOURCC ", "
-            "width = (int) 640, "
-            "height = (int) 480, "
-            "framerate = [0/1, 100/1], "
-            "pixel-aspect-ratio = (fraction) 1/1"
-            "; "
-        "video/x-raw, "
-            "format =" DEVICE_YUV_FOURCC ", "
-            "width = (int) 160, "
-            "height = (int) 120, "
-            "framerate = [0/1, 100/1], "
-            "pixel-aspect-ratio = (fraction) 1/1"
-            "; "
-        "video/x-raw, "
-            "format =" DEVICE_YUV_FOURCC ", "
-            "width = (int) 176, "
-            "height = (int) 144, "
-            "framerate = [0/1, 100/1], "
-            "pixel-aspect-ratio = (fraction) 12/11"
-            "; "
-        "video/x-raw, "
-            "format =" DEVICE_YUV_FOURCC ", "
-            "width = (int) 320, "
-            "height = (int) 240, "
-            "framerate = [0/1, 100/1], "
-            "pixel-aspect-ratio = (fraction) 1/1"
-            "; "
-        "video/x-raw, "
-            "format =" DEVICE_YUV_FOURCC ", "
-            "width = (int) 352, "
-            "height = (int) 288, "
-            "framerate = [0/1, 100/1], "
-            "pixel-aspect-ratio = (fraction) 12/11"
-            ";"
-    )
-);
-
-typedef enum _QueueState {
-  NO_FRAMES = 1,
-  HAS_FRAME_OR_STOP_REQUEST,
-} QueueState;
-
-G_DEFINE_TYPE (GstQTKitVideoSrc, gst_qtkit_video_src, GST_TYPE_PUSH_SRC);
-
-@interface GstQTKitVideoSrcImpl : NSObject {
-  GstElement *element;
-  GstBaseSrc *baseSrc;
-  GstPushSrc *pushSrc;
-
-  int deviceIndex;
-
-  QTCaptureSession *session;
-  QTCaptureDeviceInput *input;
-  QTCaptureDecompressedVideoOutput *output;
-  QTCaptureDevice *device;
-
-  NSConditionLock *queueLock;
-  NSMutableArray *queue;
-  BOOL stopRequest;
-
-  gint width, height;
-  gint fps_n, fps_d;
-  GstClockTime duration;
-  guint64 offset;
-  GstGLContextHelper *ctxh;
-  GstVideoTextureCache *textureCache;
-  GstVideoInfo outputInfo;
-}
-
-- (id)init;
-- (id)initWithSrc:(GstPushSrc *)src;
-
-@property int deviceIndex;
-
-- (BOOL)openDevice;
-- (void)closeDevice;
-- (BOOL)setCaps:(GstCaps *)caps;
-- (BOOL)start;
-- (BOOL)stop;
-- (BOOL)unlock;
-- (BOOL)unlockStop;
-- (GstCaps *)fixate:(GstCaps *)caps;
-- (BOOL)query:(GstQuery *)query;
-- (GstStateChangeReturn)changeState:(GstStateChange)transition;
-- (GstFlowReturn)create:(GstBuffer **)buf;
-- (void)timestampBuffer:(GstBuffer *)buf;
-- (void)captureOutput:(QTCaptureOutput *)captureOutput
-  didOutputVideoFrame:(CVImageBufferRef)videoFrame
-     withSampleBuffer:(QTSampleBuffer *)sampleBuffer
-       fromConnection:(QTCaptureConnection *)connection;
-
-@end
-
-@implementation GstQTKitVideoSrcImpl
-
-- (id)init
-{
-  return [self initWithSrc:NULL];
-}
-
-- (id)initWithSrc:(GstPushSrc *)src
-{
-  if ((self = [super init])) {
-    element = GST_ELEMENT_CAST (src);
-    baseSrc = GST_BASE_SRC_CAST (src);
-    pushSrc = src;
-
-    deviceIndex = DEFAULT_DEVICE_INDEX;
-
-    device = nil;
-
-    gst_base_src_set_live (baseSrc, TRUE);
-    gst_base_src_set_format (baseSrc, GST_FORMAT_TIME);
-
-    self->ctxh = NULL;
-    textureCache = NULL;
-    gst_video_info_init (&outputInfo);
-  }
-
-  return self;
-}
-
-@synthesize deviceIndex;
-
-- (BOOL)openDevice
-{
-  NSString *mediaType = QTMediaTypeVideo;
-  NSError *error = nil;
-
-  if (deviceIndex == -1) {
-    device = [QTCaptureDevice defaultInputDeviceWithMediaType:mediaType];
-    if (device == nil) {
-      GST_ELEMENT_ERROR (element, RESOURCE, NOT_FOUND,
-                         ("No video capture devices found"), (NULL));
-      goto openFailed;
-    }
-  } else {
-    NSArray *devices = [QTCaptureDevice inputDevicesWithMediaType:mediaType];
-    if (deviceIndex >= [devices count]) {
-      GST_ELEMENT_ERROR (element, RESOURCE, NOT_FOUND,
-                         ("Invalid video capture device index"), (NULL));
-      goto openFailed;
-    }
-    device = [devices objectAtIndex:deviceIndex];
-  }
-  [device retain];
-
-  GST_INFO ("Opening '%s'", [[device localizedDisplayName] UTF8String]);
-
-  if (![device open:&error]) {
-    GST_ELEMENT_ERROR (element, RESOURCE, NOT_FOUND,
-        ("Failed to open device '%s'",
-            [[device localizedDisplayName] UTF8String]), (NULL));
-    goto openFailed;
-  }
-
-  return YES;
-
-  /* ERRORS */
-openFailed:
-  {
-    [device release];
-    device = nil;
-
-    return NO;
-  }
-}
-
-- (void)closeDevice
-{
-  g_assert (![session isRunning]);
-
-  [session release];
-  session = nil;
-
-  [input release];
-  input = nil;
-
-  [output release];
-  output = nil;
-
-  [device release];
-  device = nil;
-}
-
-- (BOOL)setCaps:(GstCaps *)caps
-{
-  GstStructure *s;
-  NSDictionary *outputAttrs;
-  BOOL success;
-  NSTimeInterval interval;
-
-  g_assert (device != nil);
-
-  GST_INFO ("setting up session");
-
-  s = gst_caps_get_structure (caps, 0);
-  gst_structure_get_int (s, "width", &width);
-  gst_structure_get_int (s, "height", &height);
-  if (!gst_structure_get_fraction (s, "framerate", &fps_n, &fps_d)) {
-    fps_n = DEVICE_FPS_N;
-    fps_d = DEVICE_FPS_D;
-  }
-
-  GST_INFO ("got caps %dx%d %d/%d", width, height, fps_n, fps_d);
-  input = [[QTCaptureDeviceInput alloc] initWithDevice:device];
-
-  output = [[QTCaptureDecompressedVideoOutput alloc] init];
-#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
-  [output setAutomaticallyDropsLateVideoFrames:YES];
-#endif
-  outputAttrs = [NSDictionary dictionaryWithObjectsAndKeys:
-      [NSNumber numberWithUnsignedInt:k2vuyPixelFormat],
-          (id)kCVPixelBufferPixelFormatTypeKey,
-      [NSNumber numberWithUnsignedInt:width],
-          (id)kCVPixelBufferWidthKey,
-      [NSNumber numberWithUnsignedInt:height],
-          (id)kCVPixelBufferHeightKey,
-      nil
-  ];
-  [output setPixelBufferAttributes:outputAttrs];
-
-  if (fps_n != 0) {
-    duration = gst_util_uint64_scale (GST_SECOND, fps_d, fps_n);
-    gst_util_fraction_to_double (fps_d, fps_n, (gdouble *) &interval);
-  } else {
-    duration = GST_CLOCK_TIME_NONE;
-    interval = 0;
-  }
-
-  [output setMinimumVideoFrameInterval:interval];
-
-  session = [[QTCaptureSession alloc] init];
-  success = [session addInput:input
-                        error:nil];
-  g_assert (success);
-  success = [session addOutput:output
-                         error:nil];
-  g_assert (success);
-
-  gst_gl_context_helper_ensure_context (ctxh);
-  GST_INFO_OBJECT (element, "pushing textures, context %p old context %p",
-      ctxh->context, textureCache ? textureCache->ctx : NULL);
-  if (textureCache && textureCache->ctx != ctxh->context) {
-    gst_video_texture_cache_free (textureCache);
-    textureCache = NULL;
-  }
-  textureCache = gst_video_texture_cache_new (ctxh->context);
-  gst_video_texture_cache_set_format (textureCache, GST_VIDEO_FORMAT_UYVY, caps);
-  gst_video_info_set_format (&outputInfo, GST_VIDEO_FORMAT_UYVY, width, height);
-
-  [output setDelegate:self];
-  [session startRunning];
-
-  return YES;
-}
-
-- (BOOL)start
-{
-  NSRunLoop *mainRunLoop;
-
-  queueLock = [[NSConditionLock alloc] initWithCondition:NO_FRAMES];
-  queue = [[NSMutableArray alloc] initWithCapacity:FRAME_QUEUE_SIZE];
-  stopRequest = NO;
-
-  offset = 0;
-  width = height = 0;
-  fps_n = 0;
-  fps_d = 1;
-  duration = GST_CLOCK_TIME_NONE;
-  ctxh = gst_gl_context_helper_new (element);
-
-  /* this will trigger negotiation and open the device in setCaps */
-  gst_base_src_start_complete (baseSrc, GST_FLOW_OK);
-
-  mainRunLoop = [NSRunLoop mainRunLoop];
-  if ([mainRunLoop currentMode] == nil) {
-    /* QTCaptureSession::addInput and QTCaptureSession::addOutput, called from
-     * setCaps, call NSObject::performSelectorOnMainThread internally. If the
-     * mainRunLoop is not running we need to run it for a while for those
-     * methods to complete.
-     */
-    GST_INFO ("mainRunLoop not running");
-    [[NSRunLoop mainRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:1]];
-  }
-
-  return YES;
-}
-
-- (BOOL)stop
-{
-  [session stopRunning];
-  [output setDelegate:nil];
-
-  [queueLock release];
-  queueLock = nil;
-  [queue release];
-  queue = nil;
-
-  gst_gl_context_helper_free (ctxh);
-  ctxh = NULL;
-  if (textureCache)
-    gst_video_texture_cache_free (textureCache);
-  textureCache = NULL;
-
-  return YES;
-}
-
-- (BOOL)query:(GstQuery *)query
-{
-  BOOL result = NO;
-
-  if (GST_QUERY_TYPE (query) == GST_QUERY_LATENCY) {
-    if (device != nil) {
-      GstClockTime min_latency, max_latency;
-
-      min_latency = max_latency = duration; /* for now */
-      result = YES;
-
-      GST_DEBUG_OBJECT (element, "reporting latency of min %" GST_TIME_FORMAT
-          " max %" GST_TIME_FORMAT,
-          GST_TIME_ARGS (min_latency), GST_TIME_ARGS (max_latency));
-      gst_query_set_latency (query, TRUE, min_latency, max_latency);
-    }
-  } else {
-    result = GST_BASE_SRC_CLASS (gst_qtkit_video_src_parent_class)->query (baseSrc, query);
-  }
-
-  return result;
-}
-
-- (BOOL)unlock
-{
-  [queueLock lock];
-  stopRequest = YES;
-  [queueLock unlockWithCondition:HAS_FRAME_OR_STOP_REQUEST];
-
-  return YES;
-}
-
-- (BOOL)unlockStop
-{
-  [queueLock lock];
-  stopRequest = NO;
-  [queueLock unlockWithCondition:NO_FRAMES];
-
-  return YES;
-}
-
-- (GstCaps *)fixate:(GstCaps *)caps
-{
-  GstStructure *structure;
-
-  caps = gst_caps_truncate (caps);
-  structure = gst_caps_get_structure (caps, 0);
-  if (gst_structure_has_field (structure, "framerate")) {
-    gst_structure_fixate_field_nearest_fraction (structure, "framerate",
-        DEVICE_FPS_N, DEVICE_FPS_D);
-  }
-
-  return caps;
-}
-
-- (GstStateChangeReturn)changeState:(GstStateChange)transition
-{
-  GstStateChangeReturn ret;
-
-  if (transition == GST_STATE_CHANGE_NULL_TO_READY) {
-    if (![self openDevice])
-      return GST_STATE_CHANGE_FAILURE;
-  }
-
-  ret = GST_ELEMENT_CLASS (gst_qtkit_video_src_parent_class)->change_state (element, transition);
-
-  if (transition == GST_STATE_CHANGE_READY_TO_NULL)
-    [self closeDevice];
-
-  return ret;
-}
-
-- (void)captureOutput:(QTCaptureOutput *)captureOutput
-  didOutputVideoFrame:(CVImageBufferRef)videoFrame
-     withSampleBuffer:(QTSampleBuffer *)sampleBuffer
-       fromConnection:(QTCaptureConnection *)connection
-{
-  [queueLock lock];
-
-  if (stopRequest) {
-    [queueLock unlock];
-    return;
-  }
-
-  GST_INFO ("got new frame");
-
-  if ([queue count] == FRAME_QUEUE_SIZE)
-    [queue removeLastObject];
-
-  [queue insertObject:(id)videoFrame
-              atIndex:0];
-
-  [queueLock unlockWithCondition:HAS_FRAME_OR_STOP_REQUEST];
-}
-
-- (GstFlowReturn)create:(GstBuffer **)buf
-{
-  CVPixelBufferRef frame;
-
-  [queueLock lockWhenCondition:HAS_FRAME_OR_STOP_REQUEST];
-  if (stopRequest) {
-    [queueLock unlock];
-    return GST_FLOW_FLUSHING;
-  }
-
-  frame = (CVPixelBufferRef) [queue lastObject];
-  CVBufferRetain (frame);
-  [queue removeLastObject];
-  [queueLock unlockWithCondition:
-      ([queue count] == 0) ? NO_FRAMES : HAS_FRAME_OR_STOP_REQUEST];
-
-  *buf = gst_core_video_buffer_new ((CVBufferRef)frame, &outputInfo, textureCache);
-  CVBufferRelease (frame);
-
-  [self timestampBuffer:*buf];
-
-  return GST_FLOW_OK;
-}
-
-- (void)timestampBuffer:(GstBuffer *)buf
-{
-  GstClock *clock;
-  GstClockTime timestamp;
-
-  GST_OBJECT_LOCK (element);
-  clock = GST_ELEMENT_CLOCK (element);
-  if (clock != NULL) {
-    gst_object_ref (clock);
-    timestamp = element->base_time;
-  } else {
-    timestamp = GST_CLOCK_TIME_NONE;
-  }
-  GST_OBJECT_UNLOCK (element);
-
-  if (clock != NULL) {
-    timestamp = gst_clock_get_time (clock) - timestamp;
-    if (timestamp > duration)
-      timestamp -= duration;
-    else
-      timestamp = 0;
-
-    gst_object_unref (clock);
-    clock = NULL;
-  }
-
-  GST_BUFFER_OFFSET (buf) = offset++;
-  GST_BUFFER_OFFSET_END (buf) = GST_BUFFER_OFFSET (buf) + 1;
-  GST_BUFFER_TIMESTAMP (buf) = timestamp;
-  GST_BUFFER_DURATION (buf) = duration;
-}
-
-@end
-
-/*
- * Glue code
- */
-
-enum
-{
-  PROP_0,
-  PROP_DEVICE_INDEX
-};
-
-static void gst_qtkit_video_src_finalize (GObject * obj);
-static void gst_qtkit_video_src_get_property (GObject * object, guint prop_id,
-    GValue * value, GParamSpec * pspec);
-static void gst_qtkit_video_src_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec);
-static GstStateChangeReturn gst_qtkit_video_src_change_state (
-    GstElement * element, GstStateChange transition);
-static gboolean gst_qtkit_video_src_set_caps (GstBaseSrc * basesrc,
-    GstCaps * caps);
-static gboolean gst_qtkit_video_src_start (GstBaseSrc * basesrc);
-static gboolean gst_qtkit_video_src_stop (GstBaseSrc * basesrc);
-static gboolean gst_qtkit_video_src_query (GstBaseSrc * basesrc,
-    GstQuery * query);
-static gboolean gst_qtkit_video_src_unlock (GstBaseSrc * basesrc);
-static gboolean gst_qtkit_video_src_unlock_stop (GstBaseSrc * basesrc);
-static GstFlowReturn gst_qtkit_video_src_create (GstPushSrc * pushsrc,
-    GstBuffer ** buf);
-static GstCaps * gst_qtkit_video_src_fixate (GstBaseSrc * basesrc, GstCaps * caps);
-
-static void
-gst_qtkit_video_src_class_init (GstQTKitVideoSrcClass * klass)
-{
-  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
-  GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
-  GstBaseSrcClass *gstbasesrc_class = GST_BASE_SRC_CLASS (klass);
-  GstPushSrcClass *gstpushsrc_class = GST_PUSH_SRC_CLASS (klass);
-
-  gst_element_class_set_metadata (gstelement_class,
-      "Video Source (QTKit)", "Source/Video",
-      "Reads frames from a Mac OS X QTKit device",
-      "Ole André Vadla Ravnås <oleavr@soundrop.com>");
-
-  gst_element_class_add_static_pad_template (gstelement_class, &src_template);
-
-  gobject_class->finalize = gst_qtkit_video_src_finalize;
-  gobject_class->get_property = gst_qtkit_video_src_get_property;
-  gobject_class->set_property = gst_qtkit_video_src_set_property;
-
-  gstelement_class->change_state = gst_qtkit_video_src_change_state;
-
-  gstbasesrc_class->set_caps = gst_qtkit_video_src_set_caps;
-  gstbasesrc_class->start = gst_qtkit_video_src_start;
-  gstbasesrc_class->stop = gst_qtkit_video_src_stop;
-  gstbasesrc_class->query = gst_qtkit_video_src_query;
-  gstbasesrc_class->unlock = gst_qtkit_video_src_unlock;
-  gstbasesrc_class->unlock_stop = gst_qtkit_video_src_unlock_stop;
-  gstbasesrc_class->fixate = gst_qtkit_video_src_fixate;
-
-  gstpushsrc_class->create = gst_qtkit_video_src_create;
-
-  g_object_class_install_property (gobject_class, PROP_DEVICE_INDEX,
-      g_param_spec_int ("device-index", "Device Index",
-          "The zero-based device index",
-          -1, G_MAXINT, DEFAULT_DEVICE_INDEX,
-          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
-
-  GST_DEBUG_CATEGORY_INIT (gst_qtkit_video_src_debug, "qtkitvideosrc",
-      0, "Mac OS X QTKit video source");
-}
-
-#define OBJC_CALLOUT_BEGIN() \
-  NSAutoreleasePool *pool; \
-  \
-  pool = [[NSAutoreleasePool alloc] init]
-#define OBJC_CALLOUT_END() \
-  [pool release]
-
-static void
-gst_qtkit_video_src_init (GstQTKitVideoSrc * src)
-{
-  OBJC_CALLOUT_BEGIN ();
-  src->impl = [[GstQTKitVideoSrcImpl alloc] initWithSrc:GST_PUSH_SRC (src)];
-  OBJC_CALLOUT_END ();
-
-  /* pretend to be async so we can spin the mainRunLoop from the main thread if
-   * needed (see ::start) */
-  gst_base_src_set_async (GST_BASE_SRC (src), TRUE);
-}
-
-static void
-gst_qtkit_video_src_finalize (GObject * obj)
-{
-  OBJC_CALLOUT_BEGIN ();
-  [GST_QTKIT_VIDEO_SRC_IMPL (obj) release];
-  OBJC_CALLOUT_END ();
-
-  G_OBJECT_CLASS (gst_qtkit_video_src_parent_class)->finalize (obj);
-}
-
-static void
-gst_qtkit_video_src_get_property (GObject * object, guint prop_id, GValue * value,
-    GParamSpec * pspec)
-{
-  GstQTKitVideoSrcImpl *impl = GST_QTKIT_VIDEO_SRC_IMPL (object);
-
-  switch (prop_id) {
-    case PROP_DEVICE_INDEX:
-      g_value_set_int (value, impl.deviceIndex);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static void
-gst_qtkit_video_src_set_property (GObject * object, guint prop_id,
-    const GValue * value, GParamSpec * pspec)
-{
-  GstQTKitVideoSrcImpl *impl = GST_QTKIT_VIDEO_SRC_IMPL (object);
-
-  switch (prop_id) {
-    case PROP_DEVICE_INDEX:
-      impl.deviceIndex = g_value_get_int (value);
-      break;
-    default:
-      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-      break;
-  }
-}
-
-static GstStateChangeReturn
-gst_qtkit_video_src_change_state (GstElement * element, GstStateChange transition)
-{
-  GstStateChangeReturn ret;
-
-  OBJC_CALLOUT_BEGIN ();
-  ret = [GST_QTKIT_VIDEO_SRC_IMPL (element) changeState: transition];
-  OBJC_CALLOUT_END ();
-
-  return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_set_caps (GstBaseSrc * basesrc, GstCaps * caps)
-{
-  gboolean ret;
-
-  OBJC_CALLOUT_BEGIN ();
-  ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) setCaps:caps];
-  OBJC_CALLOUT_END ();
-
-  return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_start (GstBaseSrc * basesrc)
-{
-  gboolean ret;
-
-  OBJC_CALLOUT_BEGIN ();
-  ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) start];
-  OBJC_CALLOUT_END ();
-
-  return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_stop (GstBaseSrc * basesrc)
-{
-  gboolean ret;
-
-  OBJC_CALLOUT_BEGIN ();
-  ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) stop];
-  OBJC_CALLOUT_END ();
-
-  return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_query (GstBaseSrc * basesrc, GstQuery * query)
-{
-  gboolean ret;
-
-  OBJC_CALLOUT_BEGIN ();
-  ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) query:query];
-  OBJC_CALLOUT_END ();
-
-  return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_unlock (GstBaseSrc * basesrc)
-{
-  gboolean ret;
-
-  OBJC_CALLOUT_BEGIN ();
-  ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) unlock];
-  OBJC_CALLOUT_END ();
-
-  return ret;
-}
-
-static gboolean
-gst_qtkit_video_src_unlock_stop (GstBaseSrc * basesrc)
-{
-  gboolean ret;
-
-  OBJC_CALLOUT_BEGIN ();
-  ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) unlockStop];
-  OBJC_CALLOUT_END ();
-
-  return ret;
-}
-
-static GstFlowReturn
-gst_qtkit_video_src_create (GstPushSrc * pushsrc, GstBuffer ** buf)
-{
-  GstFlowReturn ret;
-
-  OBJC_CALLOUT_BEGIN ();
-  ret = [GST_QTKIT_VIDEO_SRC_IMPL (pushsrc) create: buf];
-  OBJC_CALLOUT_END ();
-
-  return ret;
-}
-
-static GstCaps *
-gst_qtkit_video_src_fixate (GstBaseSrc * basesrc, GstCaps * caps)
-{
-  GstCaps *ret;
-
-  OBJC_CALLOUT_BEGIN ();
-  ret = [GST_QTKIT_VIDEO_SRC_IMPL (basesrc) fixate: caps];
-  OBJC_CALLOUT_END ();
-
-  return ret;
-}