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ext/raw1394/: Implement GstPropertyProbe interface and add "device-name" property, so applications can use this to pr...

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Original commit message from CVS:
Patch by: Julien Puydt <julien dot puydt at laposte net>
* ext/raw1394/Makefile.am:
* ext/raw1394/gst1394probe.c: (gst_1394_get_guid_array),
(gst_1394_property_probe_get_properties),
(gst_1394_property_probe_probe_property),
(gst_1394_property_probe_needs_probe),
(gst_1394_property_probe_get_values),
(gst_1394_property_probe_interface_init),
(gst_1394_type_add_property_probe_interface):
* ext/raw1394/gst1394probe.h: (GST_1394_PROBE_H):
* ext/raw1394/gstdv1394src.c: (_do_init), (gst_dv1394src_class_init),
(gst_dv1394src_init), (gst_dv1394src_dispose),
(gst_dv1394src_set_property), (gst_dv1394src_get_property),
(gst_dv1394src_discover_avc_node), (gst_dv1394src_query),
(gst_dv1394src_update_device_name):
* ext/raw1394/gstdv1394src.h:
Implement GstPropertyProbe interface and add "device-name" property,
so applications can use this to probe for available devices in the
same way they can already with v4lsrc and v4l2src (however horrible
this property probe interface may be). Fixes #358841.
This commit is contained in:
Julien Puydt 2007-11-14 19:10:37 +00:00 committed by Tim-Philipp Müller
parent 012a21be12
commit f691a70d69
6 changed files with 289 additions and 5 deletions
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24
ChangeLog
View file

@ -1,3 +1,27 @@
2007-11-14 Tim-Philipp Müller <tim at centricular dot net>
Patch by: Julien Puydt <julien dot puydt at laposte net>
* ext/raw1394/Makefile.am:
* ext/raw1394/gst1394probe.c: (gst_1394_get_guid_array),
(gst_1394_property_probe_get_properties),
(gst_1394_property_probe_probe_property),
(gst_1394_property_probe_needs_probe),
(gst_1394_property_probe_get_values),
(gst_1394_property_probe_interface_init),
(gst_1394_type_add_property_probe_interface):
* ext/raw1394/gst1394probe.h: (GST_1394_PROBE_H):
* ext/raw1394/gstdv1394src.c: (_do_init), (gst_dv1394src_class_init),
(gst_dv1394src_init), (gst_dv1394src_dispose),
(gst_dv1394src_set_property), (gst_dv1394src_get_property),
(gst_dv1394src_discover_avc_node), (gst_dv1394src_query),
(gst_dv1394src_update_device_name):
* ext/raw1394/gstdv1394src.h:
Implement GstPropertyProbe interface and add "device-name" property,
so applications can use this to probe for available devices in the
same way they can already with v4lsrc and v4l2src (however horrible
this property probe interface may be). Fixes #358841.
2007-11-14 Tim-Philipp Müller <tim at centricular dot net>
Patch by: Tommi Myöhänen <ext-tommi dot myohanen at nokia dot com>

16
ext/raw1394/Makefile.am
View file

@ -1,8 +1,16 @@
plugin_LTLIBRARIES = libgst1394.la
libgst1394_la_SOURCES = gst1394.c gstdv1394src.c
libgst1394_la_CFLAGS = $(GST_CFLAGS) $(DV1394_CFLAGS)
libgst1394_la_LIBADD = $(GST_BASE_LIBS) $(DV1394_LIBS)
libgst1394_la_SOURCES = gst1394.c gst1394probe.c gstdv1394src.c
libgst1394_la_CFLAGS = \
$(GST_PLUGINS_BASE_CFLAGS) \
$(GST_BASE_CFLAGS) \
$(GST_CFLAGS) \
$(DV1394_CFLAGS)
libgst1394_la_LIBADD = \
$(GST_PLUGINS_BASE_LIBS) -lgstinterfaces-$(GST_MAJORMINOR) \
$(GST_BASE_LIBS) \
$(GST_LIBS) \
$(DV1394_LIBS)
libgst1394_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
noinst_HEADERS = gstdv1394src.h
noinst_HEADERS = gstdv1394src.h gst1394probe.h

140
ext/raw1394/gst1394probe.c Normal file
View file

@ -0,0 +1,140 @@
/* GStreamer
* Copyright (C) 2007 Julien Puydt <jpuydt@free.fr>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <libavc1394/avc1394.h>
#include <libavc1394/avc1394_vcr.h>
#include <libavc1394/rom1394.h>
#include <libraw1394/raw1394.h>
#include <gst/gst.h>
#include "gst1394probe.h"
#include "gst/interfaces/propertyprobe.h"
static GValueArray *
gst_1394_get_guid_array (void)
{
GValueArray *result = NULL;
raw1394handle_t handle = NULL;
int num_ports = 0;
int port = 0;
int num_nodes = 0;
int node = 0;
rom1394_directory directory;
GValue value = { 0, };
handle = raw1394_new_handle ();
if (handle == NULL)
return NULL;
num_ports = raw1394_get_port_info (handle, NULL, 0);
for (port = 0; port < num_ports; port++) {
if (raw1394_set_port (handle, port) >= 0) {
num_nodes = raw1394_get_nodecount (handle);
for (node = 0; node < num_nodes; node++) {
rom1394_get_directory (handle, node, &directory);
if (rom1394_get_node_type (&directory) == ROM1394_NODE_TYPE_AVC &&
avc1394_check_subunit_type (handle, node,
AVC1394_SUBUNIT_TYPE_VCR)) {
if (result == NULL)
result = g_value_array_new (3); /* looks like a sensible default */
g_value_init (&value, G_TYPE_UINT64);
g_value_set_uint64 (&value, rom1394_get_guid (handle, node));
g_value_array_append (result, &value);
g_value_unset (&value);
}
}
}
}
return result;
}
static const GList *
gst_1394_property_probe_get_properties (GstPropertyProbe * probe)
{
static GList *result = NULL;
GObjectClass *klass = NULL;
GParamSpec *spec = NULL;
if (result == NULL) {
klass = G_OBJECT_GET_CLASS (probe);
spec = g_object_class_find_property (klass, "guid");
result = g_list_append (result, spec);
}
return result;
}
static void
gst_1394_property_probe_probe_property (GstPropertyProbe * probe, guint prop_id,
const GParamSpec * pspec)
{
if (!g_str_equal (pspec->name, "guid"))
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
}
static gboolean
gst_1394_property_probe_needs_probe (GstPropertyProbe * probe, guint prop_id,
const GParamSpec * pspec)
{
return TRUE;
}
static GValueArray *
gst_1394_property_probe_get_values (GstPropertyProbe * probe, guint prop_id,
const GParamSpec * pspec)
{
GValueArray *result = NULL;
if (!g_str_equal (pspec->name, "guid")) {
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
return NULL;
}
result = gst_1394_get_guid_array ();
if (result == NULL)
GST_LOG_OBJECT (probe, "No guid found");
return result;
}
static void
gst_1394_property_probe_interface_init (GstPropertyProbeInterface * iface)
{
iface->get_properties = gst_1394_property_probe_get_properties;
iface->probe_property = gst_1394_property_probe_probe_property;
iface->needs_probe = gst_1394_property_probe_needs_probe;
iface->get_values = gst_1394_property_probe_get_values;
}
void
gst_1394_type_add_property_probe_interface (GType type)
{
static const GInterfaceInfo probe_iface_info = {
(GInterfaceInitFunc) gst_1394_property_probe_interface_init,
NULL,
NULL,
};
g_type_add_interface_static (type, GST_TYPE_PROPERTY_PROBE,
&probe_iface_info);
}

32
ext/raw1394/gst1394probe.h Normal file
View file

@ -0,0 +1,32 @@
/* GStreamer
* Copyright (C) 2007 Julien Puydt <jpuydt@free.fr>
*
* 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_1394_PROBE_H
#define GST_1394_PROBE_H
#include <gst/gst.h>
G_BEGIN_DECLS
void gst_1394_type_add_property_probe_interface (GType type);
G_END_DECLS
#endif /* __GST_1394_PROBE_H */

80
ext/raw1394/gstdv1394src.c
View file

@ -41,6 +41,7 @@
#include <gst/gst.h>
#include "gstdv1394src.h"
#include "gst1394probe.h"
#define CONTROL_STOP 'S' /* stop the select call */
@ -93,7 +94,8 @@ enum
PROP_SKIP,
PROP_DROP_INCOMPLETE,
PROP_USE_AVC,
PROP_GUID
PROP_GUID,
PROP_DEVICE_NAME
};
static const GstElementDetails gst_dv1394src_details =
@ -132,6 +134,7 @@ static gboolean gst_dv1394src_convert (GstPad * pad,
static const GstQueryType *gst_dv1394src_get_query_types (GstPad * pad);
static gboolean gst_dv1394src_query (GstPad * pad, GstQuery * query);
static void gst_dv1394src_update_device_name (GstDV1394Src * src);
static void
_do_init (GType type)
@ -143,6 +146,8 @@ _do_init (GType type)
};
g_type_add_interface_static (type, GST_TYPE_URI_HANDLER, &urihandler_info);
gst_1394_type_add_property_probe_interface (type);
GST_DEBUG_CATEGORY_INIT (dv1394src_debug, "dv1394src", 0,
"DV firewire source");
}
@ -210,6 +215,16 @@ gst_dv1394src_class_init (GstDV1394SrcClass * klass)
"select one of multiple DV devices by its GUID. use a hexadecimal "
"like 0xhhhhhhhhhhhhhhhh. (0 = no guid)", 0, G_MAXUINT64,
DEFAULT_GUID, G_PARAM_READWRITE));
/**
* GstDV1394Src:device-name
*
* Descriptive name of the currently opened device
*
* Since: 0.10.7
**/
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_DEVICE_NAME,
g_param_spec_string ("device-name", "device name",
"user-friendly name of the device", "Default", G_PARAM_READABLE));
gstbasesrc_class->negotiate = NULL;
gstbasesrc_class->start = gst_dv1394src_start;
@ -239,6 +254,7 @@ gst_dv1394src_init (GstDV1394Src * dv1394src, GstDV1394SrcClass * klass)
dv1394src->use_avc = DEFAULT_USE_AVC;
dv1394src->guid = DEFAULT_GUID;
dv1394src->uri = g_strdup_printf ("dv://%d", dv1394src->port);
dv1394src->device_name = g_strdup_printf ("Default");
READ_SOCKET (dv1394src) = -1;
WRITE_SOCKET (dv1394src) = -1;
@ -259,6 +275,9 @@ gst_dv1394src_dispose (GObject * object)
g_free (src->uri);
src->uri = NULL;
g_free (src->device_name);
src->device_name = NULL;
G_OBJECT_CLASS (parent_class)->dispose (object);
}
@ -291,6 +310,7 @@ gst_dv1394src_set_property (GObject * object, guint prop_id,
break;
case PROP_GUID:
filter->guid = g_value_get_uint64 (value);
gst_dv1394src_update_device_name (filter);
break;
default:
break;
@ -325,6 +345,9 @@ gst_dv1394src_get_property (GObject * object, guint prop_id, GValue * value,
case PROP_GUID:
g_value_set_uint64 (value, filter->guid);
break;
case PROP_DEVICE_NAME:
g_value_set_string (value, filter->device_name);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -721,8 +744,11 @@ gst_dv1394src_discover_avc_node (GstDV1394Src * src)
src->guid = rom1394_get_guid (handle, i);
g_free (src->uri);
src->uri = g_strdup_printf ("dv://%d", src->port);
g_free (src->device_name);
src->device_name = g_strdup (rom_dir.label);
break;
}
rom1394_free_directory (&rom_dir);
}
}
next:
@ -1044,6 +1070,58 @@ not_supported:
}
}
static void
gst_dv1394src_update_device_name (GstDV1394Src * src)
{
raw1394handle_t handle;
gint portcount, port, nodecount, node;
rom1394_directory directory;
g_free (src->device_name);
src->device_name = NULL;
GST_LOG_OBJECT (src, "updating device name for current GUID");
handle = raw1394_new_handle ();
if (handle == NULL)
goto gethandle_failed;
portcount = raw1394_get_port_info (handle, NULL, 0);
for (port = 0; port < portcount; port++) {
if (raw1394_set_port (handle, port) >= 0) {
nodecount = raw1394_get_nodecount (handle);
for (node = 0; node < nodecount; node++) {
if (src->guid == rom1394_get_guid (handle, node)) {
if (rom1394_get_directory (handle, node, &directory) >= 0) {
g_free (src->device_name);
src->device_name = g_strdup (directory.label);
rom1394_free_directory (&directory);
goto done;
} else {
GST_WARNING ("error reading rom directory for node %d", node);
}
}
}
}
}
src->device_name = g_strdup ("Unknown"); /* FIXME: translate? */
done:
raw1394_destroy_handle (handle);
return;
/* ERRORS */
gethandle_failed:
{
GST_WARNING ("failed to get raw1394 handle: %s", g_strerror (errno));
src->device_name = g_strdup ("Unknown"); /* FIXME: translate? */
return;
}
}
/*** GSTURIHANDLER INTERFACE *************************************************/
static guint

2
ext/raw1394/gstdv1394src.h
View file

@ -76,6 +76,8 @@ struct _GstDV1394Src {
gchar *uri;
gchar *device_name;
gboolean connected;
#ifdef HAVE_LIBIEC61883
iec61883_dv_fb_t iec61883dv;