gstreamer/gst/librfb/gstrfbsrc.c
Jan Schmidt 8a7c7d077f Rename gst_caps_structure_fixate_* to gst_structure_fixate_* (#322027)
Original commit message from CVS:
* ext/audioresample/gstaudioresample.c:
* ext/polyp/polypsink.c: (gst_polypsink_sink_fixate):
* gst/librfb/gstrfbsrc.c: (gst_rfbsrc_fixate):
* gst/modplug/gstmodplug.cc:
* sys/glsink/glimagesink.c: (gst_glimagesink_fixate):
* sys/v4l2/gstv4l2src.c: (gst_v4l2src_fixate):
Rename gst_caps_structure_fixate_* to gst_structure_fixate_*
(#322027)
2005-11-21 14:33:11 +00:00

550 lines
14 KiB
C

/* GStreamer
* Copyright (C) <2004> David A. Schleef <ds@schleef.org>
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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 <gst/gst.h>
#include <gst/video/video.h>
#include <string.h>
#include <stdlib.h>
#include <librfb/rfb.h>
#define GST_TYPE_RFBSRC \
(gst_rfbsrc_get_type())
#define GST_RFBSRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RFBSRC,GstRfbsrc))
#define GST_RFBSRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RFBSRC,GstRfbsrc))
#define GST_IS_RFBSRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RFBSRC))
#define GST_IS_RFBSRC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RFBSRC))
typedef struct _GstRfbsrc GstRfbsrc;
typedef struct _GstRfbsrcClass GstRfbsrcClass;
struct _GstRfbsrc
{
GstElement element;
GstPad *srcpad;
RfbDecoder *decoder;
char *server;
int port;
guint8 *frame;
gboolean go;
gboolean inter;
unsigned int button_mask;
double framerate;
};
struct _GstRfbsrcClass
{
GstElementClass parent_class;
};
GType
gst_rfbsrc_get_type (void)
G_GNUC_CONST;
static GstElementDetails rfbsrc_details =
GST_ELEMENT_DETAILS ("Video test source",
"Source/Video",
"Creates a test video stream",
"David A. Schleef <ds@schleef.org>");
/* GstRfbsrc signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_SERVER,
ARG_PORT,
/* FILL ME */
};
static void gst_rfbsrc_base_init (gpointer g_class);
static void gst_rfbsrc_class_init (GstRfbsrcClass * klass);
static void gst_rfbsrc_init (GstRfbsrc * rfbsrc);
static GstStateChangeReturn gst_rfbsrc_change_state (GstElement * element);
static void gst_rfbsrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_rfbsrc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstData *gst_rfbsrc_get (GstPad * pad);
static const GstQueryType *gst_rfbsrc_get_query_types (GstPad * pad);
static gboolean gst_rfbsrc_src_query (GstPad * pad,
GstQueryType type, GstFormat * format, gint64 * value);
static void gst_rfbsrc_paint_rect (RfbDecoder * decoder, int x, int y,
int w, int h, guint8 * data);
static gboolean gst_rfbsrc_handle_src_event (GstPad * pad,
GstEvent * event);
static GstCaps *gst_rfbsrc_getcaps (GstPad * pad);
static GstPadLinkReturn gst_rfbsrc_link (GstPad * pad,
const GstCaps * caps);
static GstCaps *gst_rfbsrc_fixate (GstPad * pad, const GstCaps * caps);
static GstElementClass *parent_class = NULL;
static GstStaticPadTemplate gst_rfbsrc_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw-rgb, "
"bpp = (int) 32, "
"depth = (int) 24, "
"endianness = (int) BIG_ENDIAN, "
"red_mask = (int) 0x0000ff00, "
"green_mask = (int) 0x00ff0000, "
"blue_mask = (int) 0xff000000, "
"width = [ 16, 4096 ], "
"height = [ 16, 4096 ], " "framerate = [ 1.0, 60.0] ")
);
GType
gst_rfbsrc_get_type (void)
{
static GType rfbsrc_type = 0;
if (!rfbsrc_type) {
static const GTypeInfo rfbsrc_info = {
sizeof (GstRfbsrcClass),
gst_rfbsrc_base_init,
NULL,
(GClassInitFunc) gst_rfbsrc_class_init,
NULL,
NULL,
sizeof (GstRfbsrc),
0,
(GInstanceInitFunc) gst_rfbsrc_init,
};
rfbsrc_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstRfbsrc", &rfbsrc_info, 0);
}
return rfbsrc_type;
}
static void
gst_rfbsrc_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details (element_class, &rfbsrc_details);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rfbsrc_src_template));
}
static void
gst_rfbsrc_class_init (GstRfbsrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
#if 0
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH,
g_param_spec_int ("width", "width", "Default width",
1, G_MAXINT, 320, G_PARAM_READWRITE));
#endif
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
g_object_class_install_property (gobject_class, ARG_SERVER,
g_param_spec_string ("server", "Server", "Server",
"127.0.0.1", G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_PORT,
g_param_spec_int ("port", "Port", "Port",
1, 65535, 5900, G_PARAM_READWRITE));
gobject_class->set_property = gst_rfbsrc_set_property;
gobject_class->get_property = gst_rfbsrc_get_property;
gstelement_class->change_state = gst_rfbsrc_change_state;
}
static GstStateChangeReturn
gst_rfbsrc_change_state (GstElement * element, GstStateChange transition)
{
GstRfbsrc *rfbsrc;
rfbsrc = GST_RFBSRC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
rfbsrc->decoder = rfb_decoder_new ();
rfb_decoder_connect_tcp (rfbsrc->decoder, rfbsrc->server, rfbsrc->port);
rfbsrc->decoder->paint_rect = gst_rfbsrc_paint_rect;
rfbsrc->decoder->decoder_private = rfbsrc;
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
//rfbsrc->timestamp_offset = 0;
//rfbsrc->n_frames = 0;
break;
case GST_STATE_CHANGE_READY_TO_NULL:
if (rfbsrc->frame) {
g_free (rfbsrc->frame);
rfbsrc->frame = NULL;
}
break;
}
return parent_class->change_state (element, transition);
}
static void
gst_rfbsrc_init (GstRfbsrc * rfbsrc)
{
GST_DEBUG ("gst_rfbsrc_init");
rfbsrc->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
(&gst_rfbsrc_src_template), "src");
gst_element_add_pad (GST_ELEMENT (rfbsrc), rfbsrc->srcpad);
gst_pad_set_getcaps_function (rfbsrc->srcpad, gst_rfbsrc_getcaps);
gst_pad_set_link_function (rfbsrc->srcpad, gst_rfbsrc_link);
gst_pad_set_fixate_function (rfbsrc->srcpad, gst_rfbsrc_fixate);
gst_pad_set_get_function (rfbsrc->srcpad, gst_rfbsrc_get);
gst_pad_set_query_function (rfbsrc->srcpad, gst_rfbsrc_src_query);
gst_pad_set_query_type_function (rfbsrc->srcpad, gst_rfbsrc_get_query_types);
gst_pad_set_event_function (rfbsrc->srcpad, gst_rfbsrc_handle_src_event);
rfbsrc->server = g_strdup ("127.0.0.1");
rfbsrc->port = 5900;
}
static GstCaps *
gst_rfbsrc_getcaps (GstPad * pad)
{
GstRfbsrc *rfbsrc;
GstCaps *caps;
rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
caps = gst_caps_copy (gst_pad_get_pad_template_caps (pad));
if (rfbsrc->decoder && rfbsrc->decoder->inited) {
gst_caps_set_simple (caps,
"width", G_TYPE_INT, rfbsrc->decoder->width,
"height", G_TYPE_INT, rfbsrc->decoder->height, NULL);
}
return caps;
}
static GstCaps *
gst_rfbsrc_fixate (GstPad * pad, const GstCaps * caps)
{
GstStructure *structure;
GstCaps *newcaps;
if (gst_caps_get_size (caps) > 1)
return NULL;
newcaps = gst_caps_copy (caps);
structure = gst_caps_get_structure (newcaps, 0);
if (gst_structure_fixate_field_nearest_double (structure, "framerate", 30.0)) {
return newcaps;
}
gst_caps_free (newcaps);
return NULL;
}
static GstPadLinkReturn
gst_rfbsrc_link (GstPad * pad, const GstCaps * caps)
{
GstRfbsrc *rfbsrc;
GstStructure *structure;
rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
structure = gst_caps_get_structure (caps, 0);
gst_structure_get_double (structure, "framerate", &rfbsrc->framerate);
return GST_PAD_LINK_OK;
}
static const GstQueryType *
gst_rfbsrc_get_query_types (GstPad * pad)
{
static const GstQueryType query_types[] = {
GST_QUERY_POSITION,
0,
};
return query_types;
}
static gboolean
gst_rfbsrc_src_query (GstPad * pad,
GstQueryType type, GstFormat * format, gint64 * value)
{
gboolean res = FALSE;
//GstRfbsrc *rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
switch (type) {
case GST_QUERY_POSITION:
switch (*format) {
case GST_FORMAT_TIME:
//*value = rfbsrc->n_frames * GST_SECOND / (double) rfbsrc->rate;
res = TRUE;
break;
case GST_FORMAT_DEFAULT: /* frames */
//*value = rfbsrc->n_frames;
res = TRUE;
break;
default:
break;
}
break;
default:
break;
}
return res;
}
static gboolean
gst_rfbsrc_handle_src_event (GstPad * pad, GstEvent * event)
{
GstRfbsrc *rfbsrc;
double x, y;
int button;
GstStructure *structure;
const char *event_type;
rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NAVIGATION:
structure = event->event_data.structure.structure;
event_type = gst_structure_get_string (structure, "event");
gst_structure_get_double (structure, "pointer_x", &x);
gst_structure_get_double (structure, "pointer_y", &y);
button = 0;
if (strcmp (event_type, "key-press") == 0) {
const char *key = gst_structure_get_string (structure, "key");
rfb_decoder_send_key_event (rfbsrc->decoder, key[0], 1);
rfb_decoder_send_key_event (rfbsrc->decoder, key[0], 0);
} else if (strcmp (event_type, "mouse-move") == 0) {
rfb_decoder_send_pointer_event (rfbsrc->decoder, rfbsrc->button_mask,
(int) x, (int) y);
} else if (strcmp (event_type, "mouse-button-release") == 0) {
rfbsrc->button_mask &= ~(1 << button);
rfb_decoder_send_pointer_event (rfbsrc->decoder, rfbsrc->button_mask,
(int) x, (int) y);
} else if (strcmp (event_type, "mouse-button-press") == 0) {
rfbsrc->button_mask |= (1 << button);
rfb_decoder_send_pointer_event (rfbsrc->decoder, rfbsrc->button_mask,
(int) x, (int) y);
}
break;
default:
break;
}
return TRUE;
}
static void
gst_rfbsrc_paint_rect (RfbDecoder * decoder, int x, int y, int w, int h,
guint8 * data)
{
int i, j;
guint8 *frame;
guint8 color;
GstRfbsrc *rfbsrc;
int width;
int offset;
GST_DEBUG ("painting %d,%d (%dx%d)\n", x, y, w, h);
rfbsrc = GST_RFBSRC (decoder->decoder_private);
frame = rfbsrc->frame;
width = decoder->width;
for (j = 0; j < h; j++) {
for (i = 0; i < w; i++) {
color = data[j * w + i];
#define RGB332_R(x) ((((x)&0x07) * 0x124)>>3)
#define RGB332_G(x) ((((x)&0x38) * 0x124)>>6)
#define RGB332_B(x) ((((x)&0xc0) * 0x149)>>8)
offset = ((j + x) * width + (i + x)) * 4;
frame[offset + 0] = RGB332_B (color);
frame[offset + 1] = RGB332_G (color);
frame[offset + 2] = RGB332_R (color);
frame[offset + 3] = 0;
}
}
rfbsrc->go = FALSE;
}
static GstData *
gst_rfbsrc_get (GstPad * pad)
{
GstRfbsrc *rfbsrc;
gulong newsize;
GstBuffer *buf;
RfbDecoder *decoder;
GST_DEBUG ("gst_rfbsrc_get");
g_return_val_if_fail (pad != NULL, NULL);
g_return_val_if_fail (GST_IS_PAD (pad), NULL);
rfbsrc = GST_RFBSRC (gst_pad_get_parent (pad));
decoder = rfbsrc->decoder;
if (!decoder->inited) {
while (!decoder->inited) {
rfb_decoder_iterate (decoder);
}
gst_pad_renegotiate (rfbsrc->srcpad);
if (rfbsrc->frame)
g_free (rfbsrc->frame);
rfbsrc->frame = g_malloc (decoder->width * decoder->height * 4);
GST_DEBUG ("red_mask = %08x\n", decoder->red_max << decoder->red_shift);
GST_DEBUG ("green_mask = %08x\n",
decoder->green_max << decoder->green_shift);
GST_DEBUG ("blue_mask = %08x\n", decoder->blue_max << decoder->blue_shift);
rfbsrc->inter = FALSE;
}
rfb_decoder_send_update_request (decoder, rfbsrc->inter, 0, 0, decoder->width,
decoder->height);
//rfbsrc->inter = TRUE;
rfbsrc->go = TRUE;
while (rfbsrc->go) {
rfb_decoder_iterate (decoder);
GST_DEBUG ("iterate...\n");
}
newsize = decoder->width * decoder->height * 4;
g_return_val_if_fail (newsize > 0, NULL);
GST_DEBUG ("size=%ld %dx%d", newsize, decoder->width, decoder->height);
buf = gst_buffer_new_and_alloc (newsize);
g_return_val_if_fail (GST_BUFFER_DATA (buf) != NULL, NULL);
memcpy (GST_BUFFER_DATA (buf), rfbsrc->frame, newsize);
return GST_DATA (buf);
}
static void
gst_rfbsrc_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstRfbsrc *src;
g_return_if_fail (GST_IS_RFBSRC (object));
src = GST_RFBSRC (object);
GST_DEBUG ("gst_rfbsrc_set_property");
switch (prop_id) {
case ARG_SERVER:
src->server = g_strdup (g_value_get_string (value));
break;
case ARG_PORT:
src->port = g_value_get_int (value);
break;
default:
break;
}
}
static void
gst_rfbsrc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstRfbsrc *src;
g_return_if_fail (GST_IS_RFBSRC (object));
src = GST_RFBSRC (object);
switch (prop_id) {
case ARG_SERVER:
g_value_set_string (value, src->server);
break;
case ARG_PORT:
g_value_set_int (value, src->port);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rfbsrc", GST_RANK_NONE,
GST_TYPE_RFBSRC);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"rfbsrc",
"Connects to a VNC server and decodes RFB stream",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN)