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New plugin: winscreencap (#463941).

Browse source 
Original commit message from CVS:
patch by: Haakon Sporsheim <hakon.sporsheim@tandberg.com>
* configure.ac:
* sys/Makefile.am:
* sys/winscreencap/Makefile.am:
* sys/winscreencap/gstdx9screencapsrc.c:
* sys/winscreencap/gstdx9screencapsrc.h:
* sys/winscreencap/gstgdiscreencapsrc.c:
* sys/winscreencap/gstgdiscreencapsrc.h:
* sys/winscreencap/gstwinscreencap.c:
* sys/winscreencap/gstwinscreencap.h:
New plugin: winscreencap (#463941).
This commit is contained in:
Haakon Sporsheim 2008-08-24 13:23:44 +00:00 committed by Ole André Vadla Ravnås
parent 76b2b0502d
commit 407b788242
10 changed files with 1421 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
ChangeLog
View file

@ -1,3 +1,18 @@
2008-08-24 Ole André Vadla Ravnås <ole.andre.ravnas@tandberg.com>
patch by: Haakon Sporsheim <hakon.sporsheim@tandberg.com>
* configure.ac:
* sys/Makefile.am:
* sys/winscreencap/Makefile.am:
* sys/winscreencap/gstdx9screencapsrc.c:
* sys/winscreencap/gstdx9screencapsrc.h:
* sys/winscreencap/gstgdiscreencapsrc.c:
* sys/winscreencap/gstgdiscreencapsrc.h:
* sys/winscreencap/gstwinscreencap.c:
* sys/winscreencap/gstwinscreencap.h:
New plugin: winscreencap (#463941).
2008-08-22 Michael Smith <msmith@songbirdnest.com>
* sys/dshowdecwrapper/gstdshowaudiodec.c:

1
configure.ac
View file

@ -1296,6 +1296,7 @@ sys/oss4/Makefile
sys/qtwrapper/Makefile
sys/vcd/Makefile
sys/wininet/Makefile
sys/winscreencap/Makefile
examples/Makefile
examples/app/Makefile
examples/directfb/Makefile

2
sys/Makefile.am
View file

@ -61,5 +61,5 @@ endif
SUBDIRS = $(ACM_DIR) $(DVB_DIR) $(FBDEV_DIR) $(OSS4_DIR) $(QT_DIR) $(VCD_DIR) $(WININET_DIR)
DIST_SUBDIRS = acmenc dvb fbdev dshowdecwrapper dshowsrcwrapper dshowvideosink \
oss4 qtwrapper vcd wininet
oss4 qtwrapper vcd wininet winscreencap

8
sys/winscreencap/Makefile.am Normal file
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@ -0,0 +1,8 @@
# This plugin isn't buildable with autotools at this point in time, so just
# ensure everything's listed in EXTRA_DIST
EXTRA_DIST = \
gstdx9screencapsrc.c gstdx9screencapsrc.h \
gstgdiscreencapsrc.c gstgdiscreencapsrc.h \
gstwinscreencap.c gstwinscreencap.h

587
sys/winscreencap/gstdx9screencapsrc.c Normal file
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@ -0,0 +1,587 @@
/* GStreamer
* Copyright (C) 2007 Haakon Sporsheim <hakon.sporsheim@tandberg.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstdx9screencapsrc.h"
#include <gst/video/video.h>
GST_DEBUG_CATEGORY_STATIC (dx9screencapsrc_debug);
static const GstElementDetails gst_dx9screencapsrc_details = {
"DirectX 9 screen capture source",
"Source/Video",
"Captures screen",
"Haakon Sporsheim <hakon.sporsheim@tandberg.com>"
};
#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,"
"width = " GST_VIDEO_SIZE_RANGE ","
"height = " GST_VIDEO_SIZE_RANGE "," "framerate = " GST_VIDEO_FPS_RANGE)
);
GST_BOILERPLATE (GstDX9ScreenCapSrc, gst_dx9screencapsrc,
GstPushSrc, GST_TYPE_PUSH_SRC);
enum
{
PROP_0,
PROP_MONITOR,
PROP_X_POS,
PROP_Y_POS,
PROP_WIDTH,
PROP_HEIGHT
};
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 gboolean gst_dx9screencapsrc_set_caps (GstBaseSrc * bsrc,
GstCaps * caps);
static GstCaps *gst_dx9screencapsrc_get_caps (GstBaseSrc * bsrc);
static gboolean gst_dx9screencapsrc_start (GstBaseSrc * bsrc);
static gboolean gst_dx9screencapsrc_stop (GstBaseSrc * bsrc);
static void gst_dx9screencapsrc_get_times (GstBaseSrc * basesrc,
GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
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_details (element_class, &gst_dx9screencapsrc_details);
}
static void
gst_dx9screencapsrc_class_init (GstDX9ScreenCapSrcClass * klass)
{
GObjectClass *go_class;
GstBaseSrcClass *bs_class;
GstPushSrcClass *ps_class;
go_class = (GObjectClass *) klass;
bs_class = (GstBaseSrcClass *) klass;
ps_class = (GstPushSrcClass *) klass;
go_class->dispose = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_dispose);
go_class->set_property = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_set_property);
go_class->get_property = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_get_property);
bs_class->get_times = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_get_times);
bs_class->get_caps = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_get_caps);
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);
ps_class->create = GST_DEBUG_FUNCPTR (gst_dx9screencapsrc_create);
g_object_class_install_property (go_class, PROP_MONITOR,
g_param_spec_int ("monitor", "Monitor",
"Which monitor to use (0 = 1st monitor and default)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (go_class, PROP_X_POS,
g_param_spec_int ("x", "X",
"Horizontal coordinate of top left corner for the screen capture "
"area", 0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (go_class, PROP_Y_POS,
g_param_spec_int ("y", "Y",
"Vertical coordinate of top left corner for the screen capture "
"area", 0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (go_class, PROP_WIDTH,
g_param_spec_int ("width", "Width",
"Width of screen capture area (0 = maximum)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (go_class, PROP_HEIGHT,
g_param_spec_int ("height", "Height",
"Height of screen capture area (0 = maximum)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
GST_DEBUG_CATEGORY_INIT (dx9screencapsrc_debug, "dx9screencapsrc", 0,
"DirectX 9 screen capture source");
}
static void
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;
src->capture_x = 0;
src->capture_y = 0;
src->capture_w = 0;
src->capture_h = 0;
src->monitor = 0;
gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME);
gst_base_src_set_live (GST_BASE_SRC (src), TRUE);
if (!g_d3d9)
g_d3d9 = Direct3DCreate9 (D3D_SDK_VERSION);
else
IDirect3D9_AddRef (g_d3d9);
}
static void
gst_dx9screencapsrc_dispose (GObject * object)
{
GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (object);
if (src->surface) {
GST_ERROR_OBJECT (object,
"DX9 surface was not freed in _stop, freeing in _dispose!");
IDirect3DSurface9_Release (src->surface);
src->surface = NULL;
}
if (src->d3d9_device) {
IDirect3DDevice9_Release (src->d3d9_device);
src->d3d9_device = NULL;
}
if (!IDirect3D9_Release (g_d3d9))
g_d3d9 = NULL;
}
static void
gst_dx9screencapsrc_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (object);
switch (prop_id) {
case PROP_MONITOR:
if (g_value_get_int (value) >= GetSystemMetrics (SM_CMONITORS)) {
G_OBJECT_WARN_INVALID_PSPEC (object, "Monitor", prop_id, pspec);
break;
}
src->monitor = g_value_get_int (value);
break;
case PROP_X_POS:
src->capture_x = g_value_get_int (value);
break;
case PROP_Y_POS:
src->capture_y = g_value_get_int (value);
break;
case PROP_WIDTH:
src->capture_w = g_value_get_int (value);
break;
case PROP_HEIGHT:
src->capture_h = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
};
}
static void
gst_dx9screencapsrc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (object);
switch (prop_id) {
case PROP_MONITOR:
g_value_set_int (value, src->monitor);
break;
case PROP_X_POS:
g_value_set_int (value, src->capture_x);
break;
case PROP_Y_POS:
g_value_set_int (value, src->capture_y);
break;
case PROP_WIDTH:
g_value_set_int (value, src->capture_w);
break;
case PROP_HEIGHT:
g_value_set_int (value, src->capture_h);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
};
}
static void
gst_dx9screencapsrc_fixate (GstPad * pad, GstCaps * caps)
{
GstStructure *structure;
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);
}
static gboolean
gst_dx9screencapsrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
{
GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (bsrc);
GstStructure *structure;
const GValue *framerate;
structure = gst_caps_get_structure (caps, 0);
src->src_rect = src->screen_rect;
if (src->capture_w && src->capture_h) {
src->src_rect.left += src->capture_x;
src->src_rect.top += src->capture_y;
src->src_rect.right = src->src_rect.left + src->capture_w;
src->src_rect.bottom = src->src_rect.top + src->capture_h;
}
if (framerate = gst_structure_get_value (structure, "framerate")) {
src->rate_numerator = gst_value_get_fraction_numerator (framerate);
src->rate_denominator = gst_value_get_fraction_denominator (framerate);
}
GST_DEBUG_OBJECT (src, "size %dx%d, %d/%d fps",
src->src_rect.right - src->src_rect.left,
src->src_rect.bottom - src->src_rect.top,
src->rate_numerator, src->rate_denominator);
return TRUE;
}
static GstCaps *
gst_dx9screencapsrc_get_caps (GstBaseSrc * bsrc)
{
GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (bsrc);
RECT rect_dst;
if (src->monitor >= IDirect3D9_GetAdapterCount (g_d3d9) ||
FAILED (IDirect3D9_GetAdapterDisplayMode (g_d3d9, src->monitor,
&src->disp_mode))) {
return NULL;
}
SetRect (&rect_dst, 0, 0, src->disp_mode.Width, src->disp_mode.Height);
src->screen_rect = rect_dst;
if (src->capture_w && src->capture_h &&
src->capture_x + src->capture_w < rect_dst.right - rect_dst.left &&
src->capture_y + src->capture_h < rect_dst.bottom - rect_dst.top) {
rect_dst.left = src->capture_x;
rect_dst.top = src->capture_y;
rect_dst.right = src->capture_x + src->capture_w;
rect_dst.bottom = src->capture_y + src->capture_h;
} else {
/* Default values */
src->capture_x = src->capture_y = 0;
src->capture_w = src->capture_h = 0;
}
/* Note:
* Expose as xRGB even though the Surface is allocated as ARGB!
* This is due to IDirect3DDevice9_GetFrontBufferData which only takes
* ARGB surface, but the A channel is in reality never used.
* I should add that I had problems specifying ARGB. It might be a bug
* in ffmpegcolorspace which I used for testing.
* Another interesting thing is that directdrawsink did not support ARGB,
* but only xRGB. (On my system, using 32b color depth) And according to
* the DirectX documentation ARGB is NOT a valid display buffer format,
* but xRGB is.
*/
return gst_dx9screencapsrc_create_caps_from_format (D3DFMT_X8R8G8B8,
rect_dst.right - rect_dst.left, rect_dst.bottom - rect_dst.top);
}
static GstCaps *
gst_dx9screencapsrc_create_caps_from_format (D3DFORMAT fmt,
gint width, gint height)
{
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_RED_MASK_15_INT;
green = GST_VIDEO_GREEN_MASK_15_INT;
blue = GST_VIDEO_BLUE_MASK_15_INT;
break;
case D3DFMT_X1R5G5B5:
bpp = 16;
depth = 15;
endianness = G_BYTE_ORDER;
alpha = 0;
red = GST_VIDEO_RED_MASK_15_INT;
green = GST_VIDEO_GREEN_MASK_15_INT;
blue = GST_VIDEO_BLUE_MASK_15_INT;
break;
case D3DFMT_R5G6B5:
bpp = depth = 16;
endianness = G_BYTE_ORDER;
alpha = 0;
red = GST_VIDEO_RED_MASK_16_INT;
green = GST_VIDEO_GREEN_MASK_16_INT;
blue = GST_VIDEO_BLUE_MASK_16_INT;
break;
default:
return NULL;
}
return gst_caps_new_simple ("video/x-raw-rgb",
"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
gst_dx9screencapsrc_start (GstBaseSrc * bsrc)
{
GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (bsrc);
D3DPRESENT_PARAMETERS d3dpp;
HRESULT res;
ZeroMemory (&d3dpp, sizeof (D3DPRESENT_PARAMETERS));
d3dpp.Windowed = TRUE;
d3dpp.Flags = D3DPRESENTFLAG_LOCKABLE_BACKBUFFER;
d3dpp.BackBufferFormat = src->disp_mode.Format;
d3dpp.BackBufferHeight = src->disp_mode.Height;
d3dpp.BackBufferWidth = src->disp_mode.Width;
d3dpp.BackBufferCount = 1;
d3dpp.MultiSampleType = D3DMULTISAMPLE_NONE;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.hDeviceWindow = GetDesktopWindow ();
d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_DEFAULT;
d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;
src->frames = 0;
res = IDirect3D9_CreateDevice (g_d3d9, src->monitor, D3DDEVTYPE_HAL,
GetDesktopWindow (), D3DCREATE_SOFTWARE_VERTEXPROCESSING,
&d3dpp, &src->d3d9_device);
if (FAILED (res))
return FALSE;
return SUCCEEDED (IDirect3DDevice9_CreateOffscreenPlainSurface (src->
d3d9_device, src->disp_mode.Width, src->disp_mode.Height,
D3DFMT_A8R8G8B8, D3DPOOL_SYSTEMMEM, &src->surface, NULL));
}
static gboolean
gst_dx9screencapsrc_stop (GstBaseSrc * bsrc)
{
GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (bsrc);
if (src->surface) {
IDirect3DSurface9_Release (src->surface);
src->surface = NULL;
}
return TRUE;
}
static void
gst_dx9screencapsrc_get_times (GstBaseSrc * basesrc,
GstBuffer * buffer, GstClockTime * start, GstClockTime * end)
{
GstDX9ScreenCapSrc *src = GST_DX9SCREENCAPSRC (basesrc);
GstClockTime timestamp;
timestamp = GST_BUFFER_TIMESTAMP (buffer);
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
GstClockTime duration = GST_BUFFER_DURATION (buffer);
if (GST_CLOCK_TIME_IS_VALID (duration))
*end = timestamp + duration;
*start = timestamp;
}
}
static GstFlowReturn
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;
GstClockTime time, buf_time;
D3DLOCKED_RECT locked_rect;
LPBYTE p_dst, p_src;
HRESULT hres;
if (G_UNLIKELY (!src->d3d9_device)) {
GST_ELEMENT_ERROR (src, CORE, NEGOTIATION, (NULL),
("format wasn't negotiated before create function"));
return GST_FLOW_NOT_NEGOTIATED;
}
clock = gst_element_get_clock (GST_ELEMENT (src));
if (clock != NULL) {
/* Calculate sync time. */
GstClockTime base_time;
GstClockTime frame_time =
gst_util_uint64_scale_int (src->frames * GST_SECOND,
src->rate_denominator, src->rate_numerator);
time = gst_clock_get_time (clock);
base_time = gst_element_get_base_time (GST_ELEMENT (src));
buf_time = MAX (time - base_time, frame_time);
} else {
buf_time = GST_CLOCK_TIME_NONE;
}
height = (src->src_rect.bottom - src->src_rect.top);
width = (src->src_rect.right - src->src_rect.left);
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;
}
GST_LOG_OBJECT (src,
"creating buffer of %lu 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
*/
hres =
IDirect3DDevice9_GetFrontBufferData (src->d3d9_device, 0, src->surface);
if (FAILED (hres)) {
GST_DEBUG_OBJECT (src, "DirectX::GetBackBuffer failed.");
return GST_FLOW_UNEXPECTED;
}
hres =
IDirect3DSurface9_LockRect (src->surface, &locked_rect, &(src->src_rect),
D3DLOCK_NO_DIRTY_UPDATE | D3DLOCK_NOSYSLOCK | D3DLOCK_READONLY);
if (FAILED (hres)) {
GST_DEBUG_OBJECT (src, "DirectX::LockRect failed.");
return GST_FLOW_UNEXPECTED;
}
p_dst = (LPBYTE) GST_BUFFER_DATA (new_buf);
p_src = (LPBYTE) locked_rect.pBits;
stride = width * 4;
for (i = 0; i < height; ++i) {
memcpy (p_dst, p_src, stride);
p_dst += stride;
p_src += locked_rect.Pitch;
}
/* Unlock copy of front buffer */
IDirect3DSurface9_UnlockRect (src->surface);
GST_BUFFER_TIMESTAMP (new_buf) = buf_time;
if (src->rate_numerator) {
GST_BUFFER_DURATION (new_buf) =
gst_util_uint64_scale_int (GST_SECOND,
src->rate_denominator, src->rate_numerator);
if (clock) {
GST_BUFFER_DURATION (new_buf) = MAX (GST_BUFFER_DURATION (new_buf),
gst_clock_get_time (clock) - time);
}
} else {
GST_BUFFER_DURATION (new_buf) = GST_CLOCK_TIME_NONE;
}
GST_BUFFER_OFFSET (new_buf) = src->frames;
src->frames++;
GST_BUFFER_OFFSET_END (new_buf) = src->frames;
if (clock != NULL)
gst_object_unref (clock);
*buf = new_buf;
return GST_FLOW_OK;
}

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/* GStreamer
* Copyright (C) 2007 Haakon Sporsheim <hakon.sporsheim@tandberg.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_DX9SCREENCAPSRC_H__
#define __GST_DX9SCREENCAPSRC_H__
#include <gst/gst.h>
#include <gst/base/gstpushsrc.h>
#include <d3d9.h>
#include "gstwinscreencap.h"
G_BEGIN_DECLS
#define GST_TYPE_DX9SCREENCAPSRC (gst_dx9screencapsrc_get_type())
#define GST_DX9SCREENCAPSRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), \
GST_TYPE_DX9SCREENCAPSRC,GstDX9ScreenCapSrc))
#define GST_DX9SCREENCAPSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), \
GST_TYPE_DX9SCREENCAPSRC,GstDX9ScreenCapSrcClass))
#define GST_IS_DX9SCREENCAPSRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DX9SCREENCAPSRC))
#define GST_IS_DX9SCREENCAPSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DX9SCREENCAPSRC))
typedef struct _GstDX9ScreenCapSrc GstDX9ScreenCapSrc;
typedef struct _GstDX9ScreenCapSrcClass GstDX9ScreenCapSrcClass;
struct _GstDX9ScreenCapSrc
{
/* Parent */
GstPushSrc src;
/* Properties */
gint capture_x;
gint capture_y;
gint capture_w;
gint capture_h;
guint monitor;
/* Source pad frame rate */
gint rate_numerator;
gint rate_denominator;
/* Runtime variables */
RECT screen_rect;
RECT src_rect;
gint64 frames;
D3DDISPLAYMODE disp_mode;
IDirect3DSurface9 *surface;
IDirect3DDevice9 *d3d9_device;
};
struct _GstDX9ScreenCapSrcClass
{
GstPushSrcClass parent_class;
};
GType gst_dx9screencapsrc_get_type (void);
G_END_DECLS
#endif /* __GST_DX9SCREENCAPSRC_H__ */

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/* GStreamer
* Copyright (C) 2007 Haakon Sporsheim <hakon.sporsheim@tandberg.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstgdiscreencapsrc.h"
#include <gst/video/video.h>
GST_DEBUG_CATEGORY_STATIC (gdiscreencapsrc_debug);
static const GstElementDetails gst_gdiscreencapsrc_details = {
"GDI screen capture source",
"Source/Video",
"Captures screen",
"Haakon Sporsheim <hakon.sporsheim@tandberg.com>"
};
static GstStaticPadTemplate src_template =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_BGR));
GST_BOILERPLATE (GstGDIScreenCapSrc, gst_gdiscreencapsrc,
GstPushSrc, GST_TYPE_PUSH_SRC);
enum
{
PROP_0,
PROP_MONITOR,
PROP_SHOW_CURSOR,
PROP_X_POS,
PROP_Y_POS,
PROP_WIDTH,
PROP_HEIGHT
};
/* Fwd. decl. */
static void gst_gdiscreencapsrc_dispose (GObject * object);
static void gst_gdiscreencapsrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
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 gboolean gst_gdiscreencapsrc_set_caps (GstBaseSrc * bsrc,
GstCaps * caps);
static GstCaps *gst_gdiscreencapsrc_get_caps (GstBaseSrc * bsrc);
static gboolean gst_gdiscreencapsrc_start (GstBaseSrc * bsrc);
static gboolean gst_gdiscreencapsrc_stop (GstBaseSrc * bsrc);
static void gst_gdiscreencapsrc_get_times (GstBaseSrc * basesrc,
GstBuffer * buffer, GstClockTime * start, GstClockTime * end);
static GstFlowReturn gst_gdiscreencapsrc_create (GstPushSrc * src,
GstBuffer ** buf);
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_details (element_class, &gst_gdiscreencapsrc_details);
}
static void
gst_gdiscreencapsrc_class_init (GstGDIScreenCapSrcClass * klass)
{
GObjectClass *go_class;
GstBaseSrcClass *bs_class;
GstPushSrcClass *ps_class;
go_class = (GObjectClass *) klass;
bs_class = (GstBaseSrcClass *) klass;
ps_class = (GstPushSrcClass *) klass;
go_class->dispose = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_dispose);
go_class->set_property = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_set_property);
go_class->get_property = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_get_property);
bs_class->get_times = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_get_times);
bs_class->get_caps = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_get_caps);
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);
ps_class->create = GST_DEBUG_FUNCPTR (gst_gdiscreencapsrc_create);
g_object_class_install_property (go_class, PROP_MONITOR,
g_param_spec_int ("monitor",
"Monitor", "Which monitor to use (0 = 1st monitor and default)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (go_class, PROP_SHOW_CURSOR,
g_param_spec_boolean ("cursor", "Show mouse cursor",
"Whether to show mouse cursor (default off)",
FALSE, G_PARAM_READWRITE));
g_object_class_install_property (go_class, PROP_X_POS,
g_param_spec_int ("x", "X",
"Horizontal coordinate of top left corner for the screen capture "
"area", 0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (go_class, PROP_Y_POS,
g_param_spec_int ("y", "Y",
"Vertical coordinate of top left corner for the screen capture "
"area", 0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (go_class, PROP_WIDTH,
g_param_spec_int ("width", "Width",
"Width of screen capture area (0 = maximum)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (go_class, PROP_HEIGHT,
g_param_spec_int ("height", "Height",
"Height of screen capture area (0 = maximum)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
GST_DEBUG_CATEGORY_INIT (gdiscreencapsrc_debug,
"gdiscreencapsrc", 0, "GDI screen capture source");
}
static void
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;
src->hBitmap = (HBITMAP) INVALID_HANDLE_VALUE;
src->memDC = (HDC) INVALID_HANDLE_VALUE;
src->capture_x = 0;
src->capture_y = 0;
src->capture_w = 0;
src->capture_h = 0;
src->monitor = 0;
src->show_cursor = FALSE;
gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME);
gst_base_src_set_live (GST_BASE_SRC (src), TRUE);
}
static void
gst_gdiscreencapsrc_dispose (GObject * object)
{
GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (object);
if (src->hBitmap != INVALID_HANDLE_VALUE)
DeleteObject (src->hBitmap);
if (src->memDC != INVALID_HANDLE_VALUE)
DeleteDC (src->memDC);
src->hBitmap = (HBITMAP) INVALID_HANDLE_VALUE;
src->memDC = (HDC) INVALID_HANDLE_VALUE;
src->dibMem = NULL;
}
static void
gst_gdiscreencapsrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (object);
switch (prop_id) {
case PROP_MONITOR:
if (g_value_get_int (value) >= GetSystemMetrics (SM_CMONITORS)) {
G_OBJECT_WARN_INVALID_PSPEC (object, "Monitor", prop_id, pspec);
break;
}
src->monitor = g_value_get_int (value);
break;
case PROP_SHOW_CURSOR:
src->show_cursor = g_value_get_boolean (value);
break;
case PROP_X_POS:
src->capture_x = g_value_get_int (value);
break;
case PROP_Y_POS:
src->capture_y = g_value_get_int (value);
break;
case PROP_WIDTH:
src->capture_w = g_value_get_int (value);
break;
case PROP_HEIGHT:
src->capture_h = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
};
}
static void
gst_gdiscreencapsrc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (object);
switch (prop_id) {
case PROP_MONITOR:
g_value_set_int (value, src->monitor);
break;
case PROP_SHOW_CURSOR:
g_value_set_boolean (value, src->show_cursor);
break;
case PROP_X_POS:
g_value_set_int (value, src->capture_x);
break;
case PROP_Y_POS:
g_value_set_int (value, src->capture_y);
break;
case PROP_WIDTH:
g_value_set_int (value, src->capture_w);
break;
case PROP_HEIGHT:
g_value_set_int (value, src->capture_h);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
};
}
static void
gst_gdiscreencapsrc_fixate (GstPad * pad, GstCaps * caps)
{
GstStructure *structure;
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);
}
static gboolean
gst_gdiscreencapsrc_set_caps (GstBaseSrc * bsrc, GstCaps * caps)
{
GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (bsrc);
HWND capture;
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;
src->src_rect.top += src->capture_y;
src->src_rect.right = src->src_rect.left + src->capture_w;
src->src_rect.bottom = src->src_rect.top + src->capture_h;
}
if (framerate = gst_structure_get_value (structure, "framerate")) {
src->rate_numerator = gst_value_get_fraction_numerator (framerate);
src->rate_denominator = gst_value_get_fraction_denominator (framerate);
}
src->info.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
src->info.bmiHeader.biWidth = src->src_rect.right - src->src_rect.left;
src->info.bmiHeader.biHeight = src->src_rect.top - src->src_rect.bottom;
src->info.bmiHeader.biPlanes = 1;
src->info.bmiHeader.biBitCount = 24;
src->info.bmiHeader.biCompression = BI_RGB;
src->info.bmiHeader.biSizeImage = 0;
src->info.bmiHeader.biXPelsPerMeter = 0;
src->info.bmiHeader.biYPelsPerMeter = 0;
src->info.bmiHeader.biClrUsed = 0;
src->info.bmiHeader.biClrImportant = 0;
/* Cleanup first */
if (src->hBitmap != INVALID_HANDLE_VALUE)
DeleteObject (src->hBitmap);
if (src->memDC != INVALID_HANDLE_VALUE)
DeleteDC (src->memDC);
/* Allocate */
capture = GetDesktopWindow ();
device = GetDC (capture);
src->hBitmap = CreateDIBSection (device, &(src->info), DIB_RGB_COLORS,
(void **) &(src->dibMem), 0, 0);
src->memDC = CreateCompatibleDC (device);
SelectObject (src->memDC, src->hBitmap);
ReleaseDC (capture, device);
GST_DEBUG_OBJECT (src, "size %dx%d, %d/%d fps",
src->info.bmiHeader.biWidth,
-src->info.bmiHeader.biHeight,
src->rate_numerator, src->rate_denominator);
return TRUE;
}
static GstCaps *
gst_gdiscreencapsrc_get_caps (GstBaseSrc * bsrc)
{
GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (bsrc);
RECT rect_dst;
src->screen_rect = rect_dst = gst_win32_get_monitor_rect (src->monitor);
if (src->capture_w && src->capture_h &&
src->capture_x + src->capture_w < rect_dst.right - rect_dst.left &&
src->capture_y + src->capture_h < rect_dst.bottom - rect_dst.top) {
rect_dst.left = src->capture_x;
rect_dst.top = src->capture_y;
rect_dst.right = src->capture_x + src->capture_w;
rect_dst.bottom = src->capture_y + src->capture_h;
} else {
/* Default values. */
src->capture_x = src->capture_y = 0;
src->capture_w = src->capture_h = 0;
}
GST_DEBUG ("width = %d, height=%d",
rect_dst.right - rect_dst.left, rect_dst.bottom - rect_dst.top);
return gst_caps_new_simple ("video/x-raw-rgb",
"bpp", G_TYPE_INT, 24,
"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);
}
static gboolean
gst_gdiscreencapsrc_start (GstBaseSrc * bsrc)
{
GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (bsrc);
src->frames = 0;
return TRUE;
}
static gboolean
gst_gdiscreencapsrc_stop (GstBaseSrc * bsrc)
{
GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (bsrc);
src->frames = 0;
return TRUE;
}
static void
gst_gdiscreencapsrc_get_times (GstBaseSrc * basesrc, GstBuffer * buffer,
GstClockTime * start, GstClockTime * end)
{
GstGDIScreenCapSrc *src = GST_GDISCREENCAPSRC (basesrc);
GstClockTime timestamp;
timestamp = GST_BUFFER_TIMESTAMP (buffer);
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
GstClockTime duration = GST_BUFFER_DURATION (buffer);
if (GST_CLOCK_TIME_IS_VALID (duration))
*end = timestamp + duration;
*start = timestamp;
}
}
static GstFlowReturn
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;
GstClockTime base_time;
if (G_UNLIKELY (!src->info.bmiHeader.biWidth ||
!src->info.bmiHeader.biHeight)) {
GST_ELEMENT_ERROR (src, CORE, NEGOTIATION, (NULL),
("format wasn't negotiated before create function"));
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;
}
new_buf_size = GST_ROUND_UP_4 (src->info.bmiHeader.biWidth * 3) *
(-src->info.bmiHeader.biHeight);
GST_LOG_OBJECT (src,
"creating buffer of %lu bytes with %dx%d image for frame %d",
new_buf_size, src->info.bmiHeader.biWidth,
-src->info.bmiHeader.biHeight, (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;
}
clock = gst_element_get_clock (GST_ELEMENT (src));
if (clock) {
/* Calculate sync time. */
GstClockTime frame_time =
gst_util_uint64_scale_int (src->frames * GST_SECOND,
src->rate_denominator, src->rate_numerator);
time = gst_clock_get_time (clock);
base_time = gst_element_get_base_time (GST_ELEMENT (src));
GST_BUFFER_TIMESTAMP (new_buf) = MAX (time - base_time, frame_time);
} else {
GST_BUFFER_TIMESTAMP (new_buf) = GST_CLOCK_TIME_NONE;
}
/* Do screen capture and put it into buffer... */
gst_gdiscreencapsrc_screen_capture (src, new_buf);
if (src->rate_numerator) {
GST_BUFFER_DURATION (new_buf) =
gst_util_uint64_scale_int (GST_SECOND,
src->rate_denominator, src->rate_numerator);
if (clock) {
GST_BUFFER_DURATION (new_buf) =
MAX (GST_BUFFER_DURATION (new_buf),
gst_clock_get_time (clock) - time);
}
} else {
/* NONE means forever */
GST_BUFFER_DURATION (new_buf) = GST_CLOCK_TIME_NONE;
}
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;
}
static gboolean
gst_gdiscreencapsrc_screen_capture (GstGDIScreenCapSrc * src, GstBuffer * buf)
{
HWND capture;
HDC winDC;
gint height, width;
if (G_UNLIKELY (!src->hBitmap || !src->dibMem))
return FALSE;
width = src->info.bmiHeader.biWidth;
height = -src->info.bmiHeader.biHeight;
/* Capture screen */
capture = GetDesktopWindow ();
winDC = GetWindowDC (capture);
BitBlt (src->memDC, 0, 0, width, height,
winDC, src->src_rect.left, src->src_rect.top, SRCCOPY);
ReleaseDC (capture, winDC);
/* Capture mouse cursor */
if (src->show_cursor) {
CURSORINFO ci;
ci.cbSize = sizeof (CURSORINFO);
GetCursorInfo (&ci);
if (ci.flags & CURSOR_SHOWING) {
ICONINFO ii;
GetIconInfo (ci.hCursor, &ii);
DrawIconEx (src->memDC,
ci.ptScreenPos.x - src->src_rect.left - ii.xHotspot,
ci.ptScreenPos.y - src->src_rect.top - ii.yHotspot, ci.hCursor, 0, 0,
0, NULL, DI_DEFAULTSIZE | DI_NORMAL | DI_COMPAT);
}
}
/* Copy DC bits to GST buffer */
memcpy (GST_BUFFER_DATA (buf), src->dibMem, GST_BUFFER_SIZE (buf));
return TRUE;
}

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/* GStreamer
* Copyright (C) 2007 Haakon Sporsheim <hakon.sporsheim@tandberg.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_GDISCREENCAPSRC_H__
#define __GST_GDISCREENCAPSRC_H__
#include <gst/gst.h>
#include <gst/base/gstpushsrc.h>
#include <gst/interfaces/propertyprobe.h>
#include "gstwinscreencap.h"
G_BEGIN_DECLS
#define GST_TYPE_GDISCREENCAPSRC (gst_gdiscreencapsrc_get_type())
#define GST_GDISCREENCAPSRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
GST_TYPE_GDISCREENCAPSRC,GstGDIScreenCapSrc))
#define GST_GDISCREENCAPSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), \
GST_TYPE_GDISCREENCAPSRC,GstGDIScreenCapSrcClass))
#define GST_IS_GDISCREENCAPSRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj),GST_TYPE_GDISCREENCAPSRC))
#define GST_IS_GDISCREENCAPSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass),GST_TYPE_GDISCREENCAPSRC))
typedef struct _GstGDIScreenCapSrc GstGDIScreenCapSrc;
typedef struct _GstGDIScreenCapSrcClass GstGDIScreenCapSrcClass;
struct _GstGDIScreenCapSrc
{
/* Parent */
GstPushSrc src;
/* Properties */
gint capture_x;
gint capture_y;
gint capture_w;
gint capture_h;
gint monitor;
gboolean show_cursor;
/* Source pad frame rate */
gint rate_numerator;
gint rate_denominator;
/* Runtime variables */
RECT screen_rect;
RECT src_rect;
gint64 frames;
BITMAPINFO info;
BYTE *dibMem;
HBITMAP hBitmap;
HDC memDC;
};
struct _GstGDIScreenCapSrcClass
{
GstPushSrcClass parent_class;
};
GType gst_gdiscreencapsrc_get_type (void);
G_END_DECLS
#endif /* __GST_GDISCREENCAPSRC_H__ */

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/* GStreamer
* Copyright (C) 2007 Haakon Sporsheim <hakon.sporsheim@tandberg.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstwinscreencap.h"
#include "gstgdiscreencapsrc.h"
#include "gstdx9screencapsrc.h"
static BOOL CALLBACK
_diplay_monitor_enum (HMONITOR hMon, HDC hdc, LPRECT rect, LPARAM param)
{
LPRECT *pp_rect = (LPRECT *) param;
CopyRect (*pp_rect, rect);
(*pp_rect)++;
return TRUE;
}
RECT
gst_win32_get_monitor_rect (UINT index)
{
RECT ret_rect;
LPRECT data;
data = (LPRECT) malloc (sizeof (RECT) * GetSystemMetrics (SM_CMONITORS));
if (data) {
LPRECT tmp = data;
EnumDisplayMonitors (NULL, NULL, _diplay_monitor_enum, (LPARAM) & tmp);
ret_rect = data[index];
free (data);
} else {
ZeroMemory (&ret_rect, sizeof (RECT));
}
return ret_rect;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "gdiscreencapsrc",
GST_RANK_NONE, GST_TYPE_GDISCREENCAPSRC)) {
return FALSE;
}
if (!gst_element_register (plugin, "dx9screencapsrc",
GST_RANK_NONE, GST_TYPE_DX9SCREENCAPSRC)) {
return FALSE;
}
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"winscreencap",
"Screen capture plugin for Windows",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)

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/* GStreamer
* Copyright (C) 2007 Haakon Sporsheim <hakon.sporsheim@tandberg.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_WINSCREENCAP_H__
#define __GST_WINSCREENCAP_H__
#include <glib.h>
#include <windows.h>
G_BEGIN_DECLS
RECT gst_win32_get_monitor_rect (UINT index);
G_END_DECLS
#endif /* __GST_WINSCREENCAP_H__ */