winscreencap: Initial port to 1.0

configure.ac

@@ -347,7 +347,7 @@ GST_PLUGINS_NONPORTED=" cdxaparse \
  apexsink cdaudio dc1394 directfb \
  gsettings \
  musepack nas sdl sndfile timidity \
- directdraw direct3d9 acm wininet \
+ directdraw acm wininet \
  xvid lv2 teletextdec sndio osx_video quicktime"
 AC_SUBST(GST_PLUGINS_NONPORTED)
 
@@ -757,36 +757,35 @@ AG_GST_CHECK_FEATURE(DIRECTDRAW, [DirectDraw plug-in], directdrawsink, [
   AC_SUBST(HAVE_DIRECTDRAW)
 ])
 
-dnl Direct3D9
+dnl winscreencap
-AM_CONDITIONAL(USE_DIRECT3D9, true)
+translit(dnm, m, l) AM_CONDITIONAL(USE_WINSCREENCAP, true)
-AG_GST_CHECK_FEATURE(DIRECT3D9, [Direct3D9], winscreencap, [
+AG_GST_CHECK_FEATURE(WINSCREENCAP, [winscreencap plug-in], winscreencap, [
-  HAVE_DIRECT3D9="no"
+  HAVE_WINSCREENCAP="no"
   save_CFLAGS="$CFLAGS"
   save_LDFLAGS="$LDFLAGS"
   save_LIBS="$LIBS"
   CFLAGS="$CFLAGS $DIRECTX_CFLAGS"
   LDFLAGS="$LDFLAGS $DIRECTX_LDFLAGS"
   LIBS="$LIBS -ld3d9 -lgdi32"
-  AC_MSG_CHECKING(for Direct3D9 LDFLAGS)
+  AC_MSG_CHECKING(for Direct3D LDFLAGS)
   AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 #include <windows.h>
 #include <d3d9.h>
 ]], [[
   Direct3DCreate9(D3D_SDK_VERSION);
 ]])],
-    [HAVE_DIRECT3D9="yes"],
+    [HAVE_WINSCREENCAP="yes"],
-    [HAVE_DIRECT3D9="no"])
+    [HAVE_WINSCREENCAP="no"])
-  AC_MSG_RESULT($HAVE_DIRECT3D9)
+  AC_MSG_RESULT($HAVE_WINSCREENCAP)
   CFLAGS=$save_CFLAGS
   LDFLAGS=$save_LDFLAGS
   LIBS=$save_LIBS
 
-  if test "x$HAVE_DIRECT3D9" = "xyes";  then
+  if test "x$HAVE_WINSCREENCAP" = "xyes";  then
-
+    WINSCREENCAP_LIBS="-ld3d9 -lgdi32"
-    DIRECT3D9_LIBS="-ld3d9 -lgdi32"
+    AC_SUBST(WINSCREENCAP_LIBS)
-    AC_SUBST(DIRECT3D9_LIBS)
   fi
-  AC_SUBST(HAVE_DIRECT3D9)
+  AC_SUBST(HAVE_WINSCREENCAP)
 ])
 
 dnl DirectShow

sys/Makefile.am

@@ -148,7 +148,7 @@ else
 VDPAU_DIR=
 endif
 
-if USE_DIRECT3D9
+if USE_WINSCREENCAP
 WINSCREENCAP_DIR=winscreencap
 else
 WINSCREENCAP_DIR=

sys/winscreencap/Makefile.am

@@ -2,10 +2,10 @@ plugin_LTLIBRARIES = libgstwinscreencap.la
 
 libgstwinscreencap_la_SOURCES = gstdx9screencapsrc.c  gstgdiscreencapsrc.c  gstwinscreencap.c
 libgstwinscreencap_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
-	$(GST_PLUGINS_BASE_CFLAGS) $(DIRECT3D9_CFLAGS) $(DIRECTX_CFLAGS)
+	$(GST_PLUGINS_BASE_CFLAGS) $(WINSCREENCAP_CFLAGS) $(DIRECTX_CFLAGS)
 libgstwinscreencap_la_LIBADD = $(GST_BASE_LIBS) $(GST_PLUGINS_BASE_LIBS) \
-	$(DIRECT3D9_LIBS) $(DIRECTX_LDFLAGS)
+	$(WINSCREENCAP_LIBS) $(DIRECTX_LDFLAGS)
 libgstwinscreencap_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
 libgstwinscreencap_la_LIBTOOLFLAGS = $(GST_PLUGIN_LIBTOOLFLAGS)
 
-noinst_HEADERS= gstwinscreencap.h
+noinst_HEADERS= gstwinscreencap.h gstdx9screencapsrc.h gstgdiscreencapsrc.h

sys/winscreencap/gstdx9screencapsrc.c

@@ -48,18 +48,14 @@
 
 GST_DEBUG_CATEGORY_STATIC (dx9screencapsrc_debug);
 
-#define GST_VIDEO_ALPHA_MASK_15_INT  0x8000
-
 static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
     GST_PAD_SRC,
     GST_PAD_ALWAYS,
-    GST_STATIC_CAPS ("video/x-raw-rgb,"
+    GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("BGR"))
-        "width = " GST_VIDEO_SIZE_RANGE ","
-        "height = " GST_VIDEO_SIZE_RANGE "," "framerate = " GST_VIDEO_FPS_RANGE)
     );
 
-GST_BOILERPLATE (GstDX9ScreenCapSrc, gst_dx9screencapsrc,
+#define gst_dx9screencapsrc_parent_class parent_class
-    GstPushSrc, GST_TYPE_PUSH_SRC);
+G_DEFINE_TYPE (GstDX9ScreenCapSrc, gst_dx9screencapsrc, GST_TYPE_PUSH_SRC);
 
 enum
 {
@@ -74,19 +70,16 @@ enum
 static IDirect3D9 *g_d3d9 = NULL;
 
 /* Fwd. decl. */
-static GstCaps *gst_dx9screencapsrc_create_caps_from_format (D3DFORMAT fmt,
-    gint width, gint height);
-
 static void gst_dx9screencapsrc_dispose (GObject * object);
 static void gst_dx9screencapsrc_set_property (GObject * object,
     guint prop_id, const GValue * value, GParamSpec * pspec);
 static void gst_dx9screencapsrc_get_property (GObject * object,
     guint prop_id, GValue * value, GParamSpec * pspec);
 
-static void gst_dx9screencapsrc_fixate (GstPad * pad, GstCaps * caps);
+static GstCaps * gst_dx9screencapsrc_fixate (GstBaseSrc * bsrc, GstCaps * caps);
 static gboolean gst_dx9screencapsrc_set_caps (GstBaseSrc * bsrc,
     GstCaps * caps);
-static GstCaps *gst_dx9screencapsrc_get_caps (GstBaseSrc * bsrc);
+static GstCaps *gst_dx9screencapsrc_get_caps (GstBaseSrc * bsrc, GstCaps * filter);
 static gboolean gst_dx9screencapsrc_start (GstBaseSrc * bsrc);
 static gboolean gst_dx9screencapsrc_stop (GstBaseSrc * bsrc);
 
@@ -96,27 +89,16 @@ static GstFlowReturn gst_dx9screencapsrc_create (GstPushSrc * src,
     GstBuffer ** buf);
 
 /* Implementation. */
-static void
-gst_dx9screencapsrc_base_init (gpointer klass)
-{
-  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&src_template));
-
-  gst_element_class_set_static_metadata (element_class,
-      "DirectX 9 screen capture source", "Source/Video", "Captures screen",
-      "Haakon Sporsheim <hakon.sporsheim@tandberg.com>");
-}
-
 static void
 gst_dx9screencapsrc_class_init (GstDX9ScreenCapSrcClass * klass)
 {
   GObjectClass *go_class;
+  GstElementClass *e_class;
   GstBaseSrcClass *bs_class;
   GstPushSrcClass *ps_class;
 
   go_class = (GObjectClass *) klass;
+  e_class = (GstElementClass *) klass;
   bs_class = (GstBaseSrcClass *) klass;
   ps_class = (GstPushSrcClass *) klass;
 
@@ -129,6 +111,7 @@ gst_dx9screencapsrc_class_init (GstDX9ScreenCapSrcClass * klass)
   bs_class->set_caps = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_set_caps);
   bs_class->start = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_start);
   bs_class->stop = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_stop);
+  bs_class->fixate = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_fixate);
 
   ps_class->create = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_create);
 
@@ -155,19 +138,21 @@ gst_dx9screencapsrc_class_init (GstDX9ScreenCapSrcClass * klass)
           "Height of screen capture area (0 = maximum)",
           0, G_MAXINT, 0, G_PARAM_READWRITE));
 
+  gst_element_class_add_pad_template (e_class,
+      gst_static_pad_template_get (&src_template));
+
+  gst_element_class_set_static_metadata (e_class,
+      "DirectX 9 screen capture source", "Source/Video", "Captures screen",
+      "Haakon Sporsheim <hakon.sporsheim@tandberg.com>");
+
   GST_DEBUG_CATEGORY_INIT (dx9screencapsrc_debug, "dx9screencapsrc", 0,
       "DirectX 9 screen capture source");
 }
 
 static void
-gst_dx9screencapsrc_init (GstDX9ScreenCapSrc * src,
+gst_dx9screencapsrc_init (GstDX9ScreenCapSrc * src)
-    GstDX9ScreenCapSrcClass * klass)
 {
   /* Set src element inital values... */
-  GstPad *src_pad = GST_BASE_SRC_PAD (src);
-
-  gst_pad_set_fixatecaps_function (src_pad, gst_dx9screencapsrc_fixate);
-
   src->frames = 0;
   src->surface = NULL;
   src->d3d9_device = NULL;
@@ -206,6 +191,8 @@ gst_dx9screencapsrc_dispose (GObject * object)
 
   if (!IDirect3D9_Release (g_d3d9))
     g_d3d9 = NULL;
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
 static void
@@ -268,16 +255,22 @@ gst_dx9screencapsrc_get_property (GObject * object, guint prop_id,
   };
 }
 
-static void
+static GstCaps *
-gst_dx9screencapsrc_fixate (GstPad * pad, GstCaps * caps)
+gst_dx9screencapsrc_fixate (GstBaseSrc * bsrc, GstCaps * caps)
 {
   GstStructure *structure;
 
+  caps = gst_caps_make_writable (caps);
+
   structure = gst_caps_get_structure (caps, 0);
 
   gst_structure_fixate_field_nearest_int (structure, "width", 640);
   gst_structure_fixate_field_nearest_int (structure, "height", 480);
   gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
+
+  caps = GST_BASE_SRC_CLASS (parent_class)->fixate (bsrc, caps);
+
+  return caps;
 }
 
 static gboolean
@@ -312,10 +305,11 @@ gst_dx9screencapsrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
 }
 
 static GstCaps *
-gst_dx9screencapsrc_get_caps (GstBaseSrc * bsrc)
+gst_dx9screencapsrc_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
 {
   GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (bsrc);
   RECT rect_dst;
+  GstCaps * caps;
 
   if (src->monitor >= IDirect3D9_GetAdapterCount (g_d3d9) ||
       FAILED (IDirect3D9_GetAdapterDisplayMode (g_d3d9, src->monitor,
@@ -350,83 +344,20 @@ gst_dx9screencapsrc_get_caps (GstBaseSrc * bsrc)
    *    the DirectX documentation ARGB is NOT a valid display buffer format,
    *    but xRGB is.
    */
-  return gst_dx9screencapsrc_create_caps_from_format (D3DFMT_X8R8G8B8,
+  caps = gst_caps_new_simple ("video/x-raw",
-      rect_dst.right - rect_dst.left, rect_dst.bottom - rect_dst.top);
+      "format", G_TYPE_STRING, "BGRx",
-}
+      "width", G_TYPE_INT, rect_dst.right - rect_dst.left,
+      "height", G_TYPE_INT, rect_dst.bottom - rect_dst.top,
+      "framerate", GST_TYPE_FRACTION_RANGE, 1, 1, G_MAXINT, 1,
+      "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1, NULL);
 
-static GstCaps *
+  if (filter) {
-gst_dx9screencapsrc_create_caps_from_format (D3DFORMAT fmt,
+    GstCaps * tmp = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
-    gint width, gint height)
+    gst_caps_unref (caps);
-{
+    caps = tmp;
-  gint bpp, depth, endianness;
-  gint red, green, blue, alpha;
-
-  switch (fmt) {
-    case D3DFMT_A8R8G8B8:
-      bpp = depth = 32;
-      endianness = G_BIG_ENDIAN;
-      alpha = GST_VIDEO_BYTE4_MASK_32_INT;
-      red = GST_VIDEO_BYTE3_MASK_32_INT;
-      green = GST_VIDEO_BYTE2_MASK_32_INT;
-      blue = GST_VIDEO_BYTE1_MASK_32_INT;
-      break;
-    case D3DFMT_X8R8G8B8:
-      bpp = 32;
-      depth = 24;
-      endianness = G_BIG_ENDIAN;
-      alpha = 0;
-      red = GST_VIDEO_BYTE3_MASK_32_INT;
-      green = GST_VIDEO_BYTE2_MASK_32_INT;
-      blue = GST_VIDEO_BYTE1_MASK_32_INT;
-      break;
-    case D3DFMT_R8G8B8:
-      endianness = G_BIG_ENDIAN;
-      bpp = depth = 24;
-      alpha = 0;
-      red = GST_VIDEO_BYTE1_MASK_24_INT;
-      green = GST_VIDEO_BYTE2_MASK_24_INT;
-      blue = GST_VIDEO_BYTE3_MASK_24_INT;
-      break;
-    case D3DFMT_A1R5G5B5:
-      bpp = 16;
-      depth = 15;
-      endianness = G_BYTE_ORDER;
-      alpha = GST_VIDEO_ALPHA_MASK_15_INT;
-      red = GST_VIDEO_COMP1_MASK_15_INT;
-      green = GST_VIDEO_COMP2_MASK_15_INT;
-      blue = GST_VIDEO_COMP3_MASK_15_INT;
-      break;
-    case D3DFMT_X1R5G5B5:
-      bpp = 16;
-      depth = 15;
-      endianness = G_BYTE_ORDER;
-      alpha = 0;
-      red = GST_VIDEO_COMP1_MASK_15_INT;
-      green = GST_VIDEO_COMP2_MASK_15_INT;
-      blue = GST_VIDEO_COMP3_MASK_15_INT;
-      break;
-    case D3DFMT_R5G6B5:
-      bpp = depth = 16;
-      endianness = G_BYTE_ORDER;
-      alpha = 0;
-      red = GST_VIDEO_COMP1_MASK_15_INT;
-      green = GST_VIDEO_COMP2_MASK_15_INT;
-      blue = GST_VIDEO_COMP3_MASK_15_INT;
-      break;
-    default:
-      return NULL;
   }
 
-  return gst_caps_new_simple ("video/x-raw-rgb",
+  return caps;
-      "width", G_TYPE_INT, width,
-      "height", G_TYPE_INT, height,
-      "framerate", GST_TYPE_FRACTION_RANGE, 1, 1, G_MAXINT, 1,
-      "bpp", G_TYPE_INT, bpp,
-      "depth", G_TYPE_INT, depth,
-      "endianness", G_TYPE_INT, endianness,
-      "alpha_mask", G_TYPE_INT, alpha,
-      "red_mask", G_TYPE_INT, red,
-      "green_mask", G_TYPE_INT, green, "blue_mask", G_TYPE_INT, blue, NULL);
 }
 
 static gboolean
@@ -498,7 +429,6 @@ gst_dx9screencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
 {
   GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (push_src);
   GstBuffer *new_buf;
-  GstFlowReturn res;
   gint new_buf_size, i;
   gint width, height, stride;
   GstClock *clock;
@@ -507,6 +437,7 @@ gst_dx9screencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
   D3DLOCKED_RECT locked_rect;
   LPBYTE p_dst, p_src;
   HRESULT hres;
+  GstMapInfo map;
 
   if (G_UNLIKELY (!src->d3d9_device)) {
     GST_ELEMENT_ERROR (src, CORE, NEGOTIATION, (NULL),
@@ -534,22 +465,13 @@ gst_dx9screencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
   new_buf_size = width * 4 * height;
   if (G_UNLIKELY (src->rate_numerator == 0 && src->frames == 1)) {
     GST_DEBUG_OBJECT (src, "eos: 0 framerate, frame %d", (gint) src->frames);
-    return GST_FLOW_UNEXPECTED;
+    return GST_FLOW_EOS;
   }
 
   GST_LOG_OBJECT (src,
       "creating buffer of %d bytes with %dx%d image for frame %d",
       new_buf_size, width, height, (gint) src->frames);
 
-  res = gst_pad_alloc_buffer_and_set_caps (GST_BASE_SRC_PAD (src),
-      GST_BUFFER_OFFSET_NONE, new_buf_size,
-      GST_PAD_CAPS (GST_BASE_SRC_PAD (push_src)), &new_buf);
-  if (res != GST_FLOW_OK) {
-    GST_DEBUG_OBJECT (src, "could not allocate buffer, reason %s",
-        gst_flow_get_name (res));
-    return res;
-  }
-
   /* Do screen capture and put it into buffer...
    * Aquire front buffer, and lock it
    */
@@ -557,7 +479,7 @@ gst_dx9screencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
       IDirect3DDevice9_GetFrontBufferData (src->d3d9_device, 0, src->surface);
   if (FAILED (hres)) {
     GST_DEBUG_OBJECT (src, "DirectX::GetBackBuffer failed.");
-    return GST_FLOW_UNEXPECTED;
+    return GST_FLOW_ERROR;
   }
 
   hres =
@@ -565,10 +487,12 @@ gst_dx9screencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
       D3DLOCK_NO_DIRTY_UPDATE | D3DLOCK_NOSYSLOCK | D3DLOCK_READONLY);
   if (FAILED (hres)) {
     GST_DEBUG_OBJECT (src, "DirectX::LockRect failed.");
-    return GST_FLOW_UNEXPECTED;
+    return GST_FLOW_ERROR;
   }
 
-  p_dst = (LPBYTE) GST_BUFFER_DATA (new_buf);
+  new_buf = gst_buffer_new_and_alloc (new_buf_size);
+  gst_buffer_map (new_buf, &map, GST_MAP_WRITE);
+  p_dst = (LPBYTE) map.data;
   p_src = (LPBYTE) locked_rect.pBits;
   stride = width * 4;
   for (i = 0; i < height; ++i) {
@@ -576,6 +500,7 @@ gst_dx9screencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
     p_dst += stride;
     p_src += locked_rect.Pitch;
   }
+  gst_buffer_unmap (new_buf, &map);
 
   /* Unlock copy of front buffer */
   IDirect3DSurface9_UnlockRect (src->surface);
@@ -604,3 +529,4 @@ gst_dx9screencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
   *buf = new_buf;
   return GST_FLOW_OK;
 }
+

sys/winscreencap/gstdx9screencapsrc.h

@@ -20,9 +20,10 @@
 #ifndef __GST_DX9SCREENCAPSRC_H__
 #define __GST_DX9SCREENCAPSRC_H__
 
+#include <d3d9.h>
+
 #include <gst/gst.h>
 #include <gst/base/gstpushsrc.h>
-#include <d3d9.h>
 
 #include "gstwinscreencap.h"
 

sys/winscreencap/gstgdiscreencapsrc.c

@@ -53,10 +53,10 @@ GST_DEBUG_CATEGORY_STATIC (gdiscreencapsrc_debug);
 
 static GstStaticPadTemplate src_template =
 GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
-    GST_STATIC_CAPS (GST_VIDEO_CAPS_BGR));
+    GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("BGR")));
 
-GST_BOILERPLATE (GstGDIScreenCapSrc, gst_gdiscreencapsrc,
+#define gst_gdiscreencapsrc_parent_class parent_class
-    GstPushSrc, GST_TYPE_PUSH_SRC);
+G_DEFINE_TYPE (GstGDIScreenCapSrc, gst_gdiscreencapsrc, GST_TYPE_PUSH_SRC);
 
 enum
 {
@@ -76,10 +76,10 @@ static void gst_gdiscreencapsrc_set_property (GObject * object, guint prop_id,
 static void gst_gdiscreencapsrc_get_property (GObject * object, guint prop_id,
     GValue * value, GParamSpec * pspec);
 
-static void gst_gdiscreencapsrc_fixate (GstPad * pad, GstCaps * caps);
+static GstCaps * gst_gdiscreencapsrc_fixate (GstBaseSrc * bsrc, GstCaps * caps);
 static gboolean gst_gdiscreencapsrc_set_caps (GstBaseSrc * bsrc,
     GstCaps * caps);
-static GstCaps *gst_gdiscreencapsrc_get_caps (GstBaseSrc * bsrc);
+static GstCaps *gst_gdiscreencapsrc_get_caps (GstBaseSrc * bsrc, GstCaps * filter);
 static gboolean gst_gdiscreencapsrc_start (GstBaseSrc * bsrc);
 static gboolean gst_gdiscreencapsrc_stop (GstBaseSrc * bsrc);
 
@@ -92,26 +92,16 @@ static gboolean gst_gdiscreencapsrc_screen_capture (GstGDIScreenCapSrc * src,
     GstBuffer * buf);
 
 /* Implementation. */
-static void
-gst_gdiscreencapsrc_base_init (gpointer klass)
-{
-  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
-  gst_element_class_add_pad_template (element_class,
-      gst_static_pad_template_get (&src_template));
-  gst_element_class_set_static_metadata (element_class,
-      "GDI screen capture source", "Source/Video", "Captures screen",
-      "Haakon Sporsheim <hakon.sporsheim@tandberg.com>");
-}
-
 static void
 gst_gdiscreencapsrc_class_init (GstGDIScreenCapSrcClass * klass)
 {
   GObjectClass *go_class;
+  GstElementClass *e_class;
   GstBaseSrcClass *bs_class;
   GstPushSrcClass *ps_class;
 
   go_class = (GObjectClass *) klass;
+  e_class = (GstElementClass *) klass;
   bs_class = (GstBaseSrcClass *) klass;
   ps_class = (GstPushSrcClass *) klass;
 
@@ -124,6 +114,7 @@ gst_gdiscreencapsrc_class_init (GstGDIScreenCapSrcClass * klass)
   bs_class->set_caps = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_set_caps);
   bs_class->start = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_start);
   bs_class->stop = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_stop);
+  bs_class->fixate = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_fixate);
 
   ps_class->create = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_create);
 
@@ -155,17 +146,20 @@ gst_gdiscreencapsrc_class_init (GstGDIScreenCapSrcClass * klass)
           "Height of screen capture area (0 = maximum)",
           0, G_MAXINT, 0, G_PARAM_READWRITE));
 
+  gst_element_class_add_pad_template (e_class,
+      gst_static_pad_template_get (&src_template));
+  gst_element_class_set_static_metadata (e_class,
+      "GDI screen capture source", "Source/Video", "Captures screen",
+      "Haakon Sporsheim <hakon.sporsheim@tandberg.com>");
+
   GST_DEBUG_CATEGORY_INIT (gdiscreencapsrc_debug,
       "gdiscreencapsrc", 0, "GDI screen capture source");
 }
 
 static void
-gst_gdiscreencapsrc_init (GstGDIScreenCapSrc * src,
+gst_gdiscreencapsrc_init (GstGDIScreenCapSrc * src)
-    GstGDIScreenCapSrcClass * klass)
 {
   /* Set src element inital values... */
-  GstPad *src_pad = GST_BASE_SRC_PAD (src);
-  gst_pad_set_fixatecaps_function (src_pad, gst_gdiscreencapsrc_fixate);
 
   src->frames = 0;
   src->dibMem = NULL;
@@ -197,6 +191,8 @@ gst_gdiscreencapsrc_dispose (GObject * object)
   src->hBitmap = (HBITMAP) INVALID_HANDLE_VALUE;
   src->memDC = (HDC) INVALID_HANDLE_VALUE;
   src->dibMem = NULL;
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
 static void
@@ -265,16 +261,22 @@ gst_gdiscreencapsrc_get_property (GObject * object, guint prop_id,
   };
 }
 
-static void
+static GstCaps *
-gst_gdiscreencapsrc_fixate (GstPad * pad, GstCaps * caps)
+gst_gdiscreencapsrc_fixate (GstBaseSrc * bsrc, GstCaps * caps)
 {
   GstStructure *structure;
 
+  caps = gst_caps_make_writable (caps);
+
   structure = gst_caps_get_structure (caps, 0);
 
   gst_structure_fixate_field_nearest_int (structure, "width", 640);
   gst_structure_fixate_field_nearest_int (structure, "height", 480);
   gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1);
+
+  caps = GST_BASE_SRC_CLASS (parent_class)->fixate (bsrc, caps);
+
+  return caps;
 }
 
 static gboolean
@@ -285,29 +287,9 @@ gst_gdiscreencapsrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
   HDC device;
   GstStructure *structure;
   const GValue *framerate;
-  gint red_mask, green_mask, blue_mask;
-  gint bpp;
 
   structure = gst_caps_get_structure (caps, 0);
 
-  gst_structure_get_int (structure, "red_mask", &red_mask);
-  gst_structure_get_int (structure, "green_mask", &green_mask);
-  gst_structure_get_int (structure, "blue_mask", &blue_mask);
-  if (blue_mask != GST_VIDEO_BYTE1_MASK_24_INT ||
-      green_mask != GST_VIDEO_BYTE2_MASK_24_INT ||
-      red_mask != GST_VIDEO_BYTE3_MASK_24_INT) {
-    GST_ERROR ("Wrong red_,green_,blue_ mask provided. "
-        "We only support RGB and BGR");
-
-    return FALSE;
-  }
-
-  gst_structure_get_int (structure, "bpp", &bpp);
-  if (bpp != 24) {
-    GST_ERROR ("Wrong bpp provided %d. We only support 24 bpp", bpp);
-    return FALSE;
-  }
-
   src->src_rect = src->screen_rect;
   if (src->capture_w && src->capture_h) {
     src->src_rect.left += src->capture_x;
@@ -359,10 +341,11 @@ gst_gdiscreencapsrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
 }
 
 static GstCaps *
-gst_gdiscreencapsrc_get_caps (GstBaseSrc * bsrc)
+gst_gdiscreencapsrc_get_caps (GstBaseSrc * bsrc, GstCaps * filter)
 {
   GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (bsrc);
   RECT rect_dst;
+  GstCaps *caps;
 
   src->screen_rect = rect_dst = gst_win32_get_monitor_rect (src->monitor);
 
@@ -383,16 +366,20 @@ gst_gdiscreencapsrc_get_caps (GstBaseSrc * bsrc)
       (gint) (rect_dst.right - rect_dst.left),
       (gint) (rect_dst.bottom - rect_dst.top));
 
-  return gst_caps_new_simple ("video/x-raw-rgb",
+  caps = gst_caps_new_simple ("video/x-raw",
-      "bpp", G_TYPE_INT, 24,
+      "format", G_TYPE_STRING, "BGR",
-      "depth", G_TYPE_INT, 24,
-      "endianness", G_TYPE_INT, G_BIG_ENDIAN,
-      "red_mask", G_TYPE_INT, GST_VIDEO_BYTE3_MASK_24_INT,
-      "green_mask", G_TYPE_INT, GST_VIDEO_BYTE2_MASK_24_INT,
-      "blue_mask", G_TYPE_INT, GST_VIDEO_BYTE1_MASK_24_INT,
       "width", G_TYPE_INT, rect_dst.right - rect_dst.left,
       "height", G_TYPE_INT, rect_dst.bottom - rect_dst.top,
-      "framerate", GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL);
+      "framerate", GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1,
+      "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1, NULL);
+  
+  if (filter) {
+    GstCaps * tmp = gst_caps_intersect_full (filter, caps, GST_CAPS_INTERSECT_FIRST);
+    gst_caps_unref (caps);
+    caps = tmp;
+  }
+
+  return caps;
 }
 
 static gboolean
@@ -437,7 +424,6 @@ gst_gdiscreencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
 {
   GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (push_src);
   GstBuffer *new_buf;
-  GstFlowReturn res;
   gint new_buf_size;
   GstClock *clock;
   GstClockTime time = GST_CLOCK_TIME_NONE;
@@ -450,7 +436,7 @@ gst_gdiscreencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
     return GST_FLOW_NOT_NEGOTIATED;
   } else if (G_UNLIKELY (src->rate_numerator == 0 && src->frames == 1)) {
     GST_DEBUG_OBJECT (src, "eos: 0 framerate, frame %d", (gint) src->frames);
-    return GST_FLOW_UNEXPECTED;
+    return GST_FLOW_EOS;
   }
 
   new_buf_size = GST_ROUND_UP_4 (src->info.bmiHeader.biWidth * 3) *
@@ -461,16 +447,7 @@ gst_gdiscreencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
       new_buf_size, (gint) src->info.bmiHeader.biWidth,
       (gint) (-src->info.bmiHeader.biHeight), (gint) src->frames);
 
-  res =
+  new_buf = gst_buffer_new_and_alloc (new_buf_size);
-      gst_pad_alloc_buffer_and_set_caps (GST_BASE_SRC_PAD (src),
-      GST_BUFFER_OFFSET_NONE, new_buf_size,
-      GST_PAD_CAPS (GST_BASE_SRC_PAD (push_src)), &new_buf);
-  if (res != GST_FLOW_OK) {
-    GST_DEBUG_OBJECT (src, "could not allocate buffer, reason %s",
-        gst_flow_get_name (res));
-    return res;
-  }
-
   clock = gst_element_get_clock (GST_ELEMENT (src));
   if (clock) {
     /* Calculate sync time. */
@@ -501,13 +478,12 @@ gst_gdiscreencapsrc_create (GstPushSrc * push_src, GstBuffer ** buf)
     /* NONE means forever */
     GST_BUFFER_DURATION (new_buf) = GST_CLOCK_TIME_NONE;
   }
+  gst_object_unref (clock);
 
   GST_BUFFER_OFFSET (new_buf) = src->frames;
   src->frames++;
   GST_BUFFER_OFFSET_END (new_buf) = src->frames;
 
-  gst_object_unref (clock);
-
   *buf = new_buf;
   return GST_FLOW_OK;
 }
@@ -518,6 +494,7 @@ gst_gdiscreencapsrc_screen_capture (GstGDIScreenCapSrc * src, GstBuffer * buf)
   HWND capture;
   HDC winDC;
   gint height, width;
+  GstMapInfo map;
 
   if (G_UNLIKELY (!src->hBitmap || !src->dibMem))
     return FALSE;
@@ -556,7 +533,9 @@ gst_gdiscreencapsrc_screen_capture (GstGDIScreenCapSrc * src, GstBuffer * buf)
   }
 
   /* Copy DC bits to GST buffer */
-  memcpy (GST_BUFFER_DATA (buf), src->dibMem, GST_BUFFER_SIZE (buf));
+  gst_buffer_map (buf, &map, GST_MAP_WRITE);
+  memcpy (map.data, src->dibMem, map.size);
+  gst_buffer_unmap (buf, &map);
 
   return TRUE;
 }

sys/winscreencap/gstgdiscreencapsrc.h

@@ -22,7 +22,6 @@
 
 #include <gst/gst.h>
 #include <gst/base/gstpushsrc.h>
-#include <gst/interfaces/propertyprobe.h>
 
 #include "gstwinscreencap.h"
 

sys/winscreencap/gstwinscreencap.h

@@ -20,8 +20,9 @@
 #ifndef __GST_WINSCREENCAP_H__
 #define __GST_WINSCREENCAP_H__
 
-#include <glib.h>
 #include <windows.h>
+#include <glib.h>
+#include <gst/gst.h>
 
 G_BEGIN_DECLS