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gstreamer/sys/v4l2/v4l2_calls.c

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this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
/* G-Streamer generic V4L2 element - generic V4L2 calls handling
* Copyright (C) 2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* 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 <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <string.h>
#include <errno.h>
Fix missing config.h and unistd.h includes which were apparently removed from gst/gst.h recently Original commit message from CVS: Fix missing config.h and unistd.h includes which were apparently removed from gst/gst.h recently
2003-07-03 15:55:12 +00:00
#include <unistd.h>
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
#include "v4l2_calls.h"
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
#include "gstv4l2tuner.h"
#include "gstv4l2xoverlay.h"
#include "gstv4l2colorbalance.h"
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
Proper device-capabilities check when opening Original commit message from CVS: Proper device-capabilities check when opening
2003-11-10 10:25:59 +00:00
#include "gstv4l2src.h"
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
#define DEBUG(format, args...) \
compatibility fix for new GST_DEBUG stuff. Original commit message from CVS: compatibility fix for new GST_DEBUG stuff. Includes fixes for missing includes for config.h and unistd.h I only ensured for plugins I can build that they work, so if some of them are still broken, you gotta fix them yourselves unfortunately.
2003-06-29 19:46:12 +00:00
GST_DEBUG_OBJECT (\
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
GST_ELEMENT(v4l2element), \
This fixes the video4linux/video4linux2 debug output, which had one \n too much Original commit message from CVS: This fixes the video4linux/video4linux2 debug output, which had one \n too much
2002-09-17 17:45:19 +00:00
"V4L2: " format, ##args)
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
/******************************************************
* gst_v4l2_get_capabilities():
* get the device's capturing capabilities
* return value: TRUE on success, FALSE on error
******************************************************/
static gboolean
gst_v4l2_get_capabilities (GstV4l2Element *v4l2element)
{
DEBUG("getting capabilities");
GST_V4L2_CHECK_OPEN(v4l2element);
if (ioctl(v4l2element->video_fd, VIDIOC_QUERYCAP, &(v4l2element->vcap)) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Error getting %s capabilities: %s",
v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
return TRUE;
}
/******************************************************
* gst_v4l2_empty_lists() and gst_v4l2_fill_lists():
* fill/empty the lists of enumerations
* return value: TRUE on success, FALSE on error
******************************************************/
static gboolean
gst_v4l2_fill_lists (GstV4l2Element *v4l2element)
{
gint n;
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
const GList *pads =
gst_element_get_pad_list (GST_ELEMENT (v4l2element));
GstPadDirection dir = GST_PAD_UNKNOWN;
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
DEBUG("getting enumerations");
GST_V4L2_CHECK_OPEN(v4l2element);
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
/* sinks have outputs, all others have inputs */
if (pads && g_list_length ((GList *) pads) == 1)
dir = GST_PAD_DIRECTION (GST_PAD (pads->data));
Oops, input <-> output confusion Original commit message from CVS: Oops, input <-> output confusion
2003-10-26 11:48:30 +00:00
if (dir != GST_PAD_SINK) {
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
/* and now, the inputs */
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
for (n=0;;n++) {
struct v4l2_input input;
GstV4l2TunerChannel *v4l2channel;
GstTunerChannel *channel;
input.index = n;
if (ioctl(v4l2element->video_fd, VIDIOC_ENUMINPUT,
&input) < 0) {
if (errno == EINVAL)
break; /* end of enumeration */
else {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get %d in input enumeration for %s: %s",
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
n, v4l2element->device,
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
g_strerror (errno)));
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
return FALSE;
}
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
}
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
v4l2channel =
g_object_new(GST_TYPE_V4L2_TUNER_CHANNEL, NULL);
channel = GST_TUNER_CHANNEL(v4l2channel);
channel->label = g_strdup(input.name);
channel->flags = GST_TUNER_CHANNEL_INPUT;
v4l2channel->index = n;
if (input.type == V4L2_INPUT_TYPE_TUNER) {
struct v4l2_tuner vtun;
v4l2channel->tuner = input.tuner;
channel->flags |= GST_TUNER_CHANNEL_FREQUENCY;
vtun.index = input.tuner;
if (ioctl(v4l2element->video_fd, VIDIOC_G_TUNER,
&vtun) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get tuner %d settings on %s: %s",
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
input.tuner,
v4l2element->device,
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
g_strerror (errno)));
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
g_object_unref(G_OBJECT(channel));
return FALSE;
}
channel->min_frequency = vtun.rangelow;
channel->max_frequency = vtun.rangehigh;
channel->min_signal = 0;
channel->max_signal = 0xffff;
}
if (input.audioset) {
/* we take the first. We don't care for
* the others for now */
while (!(input.audioset &
(1<<v4l2channel->audio)))
v4l2channel->audio++;
channel->flags |= GST_TUNER_CHANNEL_AUDIO;
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
}
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
v4l2element->channels =
g_list_append(v4l2element->channels,
(gpointer) channel);
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
}
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
} else {
/* outputs */
for (n=0;;n++) {
struct v4l2_output output;
GstV4l2TunerChannel *v4l2channel;
GstTunerChannel *channel;
output.index = n;
if (ioctl(v4l2element->video_fd, VIDIOC_ENUMOUTPUT,
&output) < 0) {
if (errno == EINVAL)
break; /* end of enumeration */
else {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get %d in output enumeration for %s: %s",
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
n, v4l2element->device,
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
g_strerror (errno)));
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
return FALSE;
}
}
v4l2channel = g_object_new(GST_TYPE_V4L2_TUNER_CHANNEL, NULL);
channel = GST_TUNER_CHANNEL(v4l2channel);
channel->label = g_strdup(output.name);
channel->flags = GST_TUNER_CHANNEL_OUTPUT;
v4l2channel->index = n;
if (output.audioset) {
/* we take the first. We don't care for
* the others for now */
while (!(output.audioset &
(1<<v4l2channel->audio)))
v4l2channel->audio++;
channel->flags |= GST_TUNER_CHANNEL_AUDIO;
}
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
v4l2element->channels =
g_list_append(v4l2element->channels,
(gpointer) channel);
}
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
}
/* norms... */
for (n=0;;n++) {
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
struct v4l2_standard standard;
GstV4l2TunerNorm *v4l2norm;
GstTunerNorm *norm;
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
standard.index = n;
if (ioctl(v4l2element->video_fd, VIDIOC_ENUMSTD, &standard) < 0) {
if (errno == EINVAL)
break; /* end of enumeration */
else {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get %d in norm enumeration for %s: %s",
n, v4l2element->device,
g_strerror (errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
}
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
v4l2norm = g_object_new(GST_TYPE_V4L2_TUNER_NORM, NULL);
norm = GST_TUNER_NORM (v4l2norm);
norm->label = g_strdup(standard.name);
norm->fps = (gfloat) standard.frameperiod.denominator /
standard.frameperiod.numerator;
v4l2norm->index = standard.id;
v4l2element->norms = g_list_append(v4l2element->norms,
(gpointer) norm);
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
}
/* and lastly, controls+menus (if appropriate) */
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
for (n=V4L2_CID_BASE;;n++) {
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
struct v4l2_queryctrl control;
GstV4l2ColorBalanceChannel *v4l2channel;
GstColorBalanceChannel *channel;
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
/* hacky... */
if (n == V4L2_CID_LASTP1)
n = V4L2_CID_PRIVATE_BASE;
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
control.id = n;
if (ioctl(v4l2element->video_fd, VIDIOC_QUERYCTRL, &control) < 0) {
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
if (errno == EINVAL) {
if (n < V4L2_CID_PRIVATE_BASE)
continue;
else
break;
} else {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get %d in control enumeration for %s: %s",
n, v4l2element->device,
g_strerror (errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
}
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
if (control.flags & V4L2_CTRL_FLAG_DISABLED)
continue;
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
switch (n) {
case V4L2_CID_BRIGHTNESS:
case V4L2_CID_CONTRAST:
case V4L2_CID_SATURATION:
case V4L2_CID_HUE:
case V4L2_CID_BLACK_LEVEL:
case V4L2_CID_AUTO_WHITE_BALANCE:
case V4L2_CID_DO_WHITE_BALANCE:
case V4L2_CID_RED_BALANCE:
case V4L2_CID_BLUE_BALANCE:
case V4L2_CID_GAMMA:
case V4L2_CID_EXPOSURE:
case V4L2_CID_AUTOGAIN:
case V4L2_CID_GAIN:
/* we only handle these for now */
break;
default:
DEBUG("ControlID %s (%d) unhandled, FIXME",
control.name, n);
control.id++;
break;
}
if (n != control.id)
continue;
v4l2channel = g_object_new(GST_TYPE_V4L2_COLOR_BALANCE_CHANNEL,
NULL);
channel = GST_COLOR_BALANCE_CHANNEL(v4l2channel);
channel->label = g_strdup(control.name);
v4l2channel->index = n;
#if 0
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
if (control.type == V4L2_CTRL_TYPE_MENU) {
struct v4l2_querymenu menu, *mptr;
int i;
menu.id = n;
for (i=0;;i++) {
menu.index = i;
if (ioctl(v4l2element->video_fd, VIDIOC_QUERYMENU, &menu) < 0) {
if (errno == EINVAL)
break; /* end of enumeration */
else {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get %d in menu enumeration for %s: %s",
n, v4l2element->device,
g_strerror (errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
}
mptr = g_malloc(sizeof(menu));
memcpy(mptr, &menu, sizeof(menu));
menus = g_list_append(menus, mptr);
}
}
v4l2element->menus = g_list_append(v4l2element->menus, menus);
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
#endif
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
switch (control.type) {
case V4L2_CTRL_TYPE_INTEGER:
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
channel->min_value = control.minimum;
channel->max_value = control.maximum;
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
break;
case V4L2_CTRL_TYPE_BOOLEAN:
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
channel->min_value = FALSE;
channel->max_value = TRUE;
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
break;
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
default:
channel->min_value =
channel->max_value = 0;
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
break;
}
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
v4l2element->colors = g_list_append(v4l2element->colors,
(gpointer) channel);
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
}
return TRUE;
}
static void
gst_v4l2_empty_lists (GstV4l2Element *v4l2element)
{
DEBUG("deleting enumerations");
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
g_list_foreach (v4l2element->channels, (GFunc) g_object_unref, NULL);
g_list_free (v4l2element->channels);
v4l2element->channels = NULL;
g_list_foreach (v4l2element->norms, (GFunc) g_object_unref, NULL);
g_list_free (v4l2element->norms);
v4l2element->norms = NULL;
g_list_foreach (v4l2element->colors, (GFunc) g_object_unref, NULL);
g_list_free (v4l2element->colors);
v4l2element->colors = NULL;
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
}
sys/v4l2/: add norm, channel and frequency properties. Original commit message from CVS: 2004-01-12 Benjamin Otte <in7y118@public.uni-hamburg.de> * sys/v4l2/gstv4l2element.c: (gst_v4l2element_class_init), (gst_v4l2element_dispose), (gst_v4l2element_set_property), (gst_v4l2element_get_property): * sys/v4l2/v4l2_calls.c: (gst_v4l2_set_defaults), (gst_v4l2_open): add norm, channel and frequency properties. * sys/v4l2/gstv4l2tuner.c: fixes for tuner interface changes * sys/v4l2/gstv4l2element.h: * sys/v4l2/gstv4l2src.c: * sys/v4l2/gstv4l2src.h: * sys/v4l2/v4l2src_calls.c: * sys/v4l2/v4l2src_calls.h: rework v4l2src to work with saa1734 cards and allow mmaped buffers.
2004-01-12 02:19:57 +00:00
/* FIXME: move this stuff to gstv4l2tuner.c? */
static void
gst_v4l2_set_defaults (GstV4l2Element *v4l2element)
{
GstTunerNorm *norm = NULL;
GstTunerChannel *channel = NULL;
GstTuner *tuner = GST_TUNER (v4l2element);
if (v4l2element->norm)
norm = gst_tuner_find_norm_by_name (tuner, v4l2element->norm);
if (norm) {
gst_tuner_set_norm (tuner, norm);
} else {
norm = GST_TUNER_NORM (gst_tuner_get_norm (GST_TUNER (v4l2element)));
v4l2element->norm = g_strdup (norm->label);
gst_tuner_norm_changed (tuner, norm);
g_object_notify (G_OBJECT (v4l2element), "norm");
}
if (v4l2element->channel)
channel = gst_tuner_find_channel_by_name (tuner, v4l2element->channel);
if (channel) {
gst_tuner_set_channel (tuner, channel);
} else {
channel = GST_TUNER_CHANNEL (gst_tuner_get_channel (GST_TUNER (v4l2element)));
v4l2element->channel = g_strdup (channel->label);
gst_tuner_channel_changed (tuner, channel);
g_object_notify (G_OBJECT (v4l2element), "channel");
}
if (v4l2element->frequency != 0) {
gst_tuner_set_frequency (tuner, channel, v4l2element->frequency);
} else {
v4l2element->frequency = gst_tuner_get_frequency (tuner, channel);
if (v4l2element->frequency == 0) {
/* guess */
gst_tuner_set_frequency (tuner, channel, 1000);
} else {
g_object_notify (G_OBJECT (v4l2element), "frequency");
}
}
}
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
/******************************************************
* gst_v4l2_open():
* open the video device (v4l2element->device)
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_open (GstV4l2Element *v4l2element)
{
DEBUG("Trying to open device %s", v4l2element->device);
GST_V4L2_CHECK_NOT_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
/* be sure we have a device */
if (!v4l2element->device)
v4l2element->device = g_strdup("/dev/video");
/* open the device */
v4l2element->video_fd = open(v4l2element->device, O_RDWR);
if (!GST_V4L2_IS_OPEN(v4l2element)) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, OPEN_READ_WRITE,
(_("Could not open device \"%s\" for reading and writing"), v4l2element->device),
GST_ERROR_SYSTEM);
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
goto error;
}
/* get capabilities */
if (!gst_v4l2_get_capabilities(v4l2element)) {
goto error;
}
Proper device-capabilities check when opening Original commit message from CVS: Proper device-capabilities check when opening
2003-11-10 10:25:59 +00:00
/* do we need to be a capture device? */
if (GST_IS_V4L2SRC(v4l2element) &&
!(v4l2element->vcap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, NOT_FOUND,
(_("Device \"%s\" is not a capture device"), v4l2element->device),
("Capabilities: 0x%x", v4l2element->vcap.capabilities));
Proper device-capabilities check when opening Original commit message from CVS: Proper device-capabilities check when opening
2003-11-10 10:25:59 +00:00
goto error;
}
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
/* create enumerations */
if (!gst_v4l2_fill_lists(v4l2element))
goto error;
sys/v4l2/: add norm, channel and frequency properties. Original commit message from CVS: 2004-01-12 Benjamin Otte <in7y118@public.uni-hamburg.de> * sys/v4l2/gstv4l2element.c: (gst_v4l2element_class_init), (gst_v4l2element_dispose), (gst_v4l2element_set_property), (gst_v4l2element_get_property): * sys/v4l2/v4l2_calls.c: (gst_v4l2_set_defaults), (gst_v4l2_open): add norm, channel and frequency properties. * sys/v4l2/gstv4l2tuner.c: fixes for tuner interface changes * sys/v4l2/gstv4l2element.h: * sys/v4l2/gstv4l2src.c: * sys/v4l2/gstv4l2src.h: * sys/v4l2/v4l2src_calls.c: * sys/v4l2/v4l2src_calls.h: rework v4l2src to work with saa1734 cards and allow mmaped buffers.
2004-01-12 02:19:57 +00:00
/* set defaults */
gst_v4l2_set_defaults (v4l2element);
GST_INFO_OBJECT (v4l2element, "Opened device '%s' (%s) successfully\n",
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
v4l2element->vcap.card, v4l2element->device);
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return TRUE;
error:
if (GST_V4L2_IS_OPEN(v4l2element)) {
/* close device */
close(v4l2element->video_fd);
v4l2element->video_fd = -1;
}
/* empty lists */
gst_v4l2_empty_lists(v4l2element);
return FALSE;
}
/******************************************************
* gst_v4l2_close():
* close the video device (v4l2element->video_fd)
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_close (GstV4l2Element *v4l2element)
{
DEBUG("Trying to close %s", v4l2element->device);
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
/* close device */
close(v4l2element->video_fd);
v4l2element->video_fd = -1;
/* empty lists */
gst_v4l2_empty_lists(v4l2element);
return TRUE;
}
/******************************************************
* gst_v4l2_get_norm()
* Get the norm of the current device
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_get_norm (GstV4l2Element *v4l2element,
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
v4l2_std_id *norm)
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
{
DEBUG("getting norm");
GST_V4L2_CHECK_OPEN(v4l2element);
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
if (ioctl(v4l2element->video_fd, VIDIOC_G_STD, norm) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get the current norm for device %s: %s",
v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
return TRUE;
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
}
/******************************************************
* gst_v4l2_set_norm()
* Set the norm of the current device
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_set_norm (GstV4l2Element *v4l2element,
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
v4l2_std_id norm)
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
{
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
DEBUG("trying to set norm to %llx", norm);
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
if (ioctl(v4l2element->video_fd, VIDIOC_S_STD, &norm) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to set norm 0x%llx for device %s: %s",
norm, v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
return TRUE;
}
/******************************************************
* gst_v4l2_get_input()
* Get the input of the current device
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_get_input (GstV4l2Element *v4l2element,
gint *input)
{
gint n;
DEBUG("trying to get input");
GST_V4L2_CHECK_OPEN(v4l2element);
if (ioctl(v4l2element->video_fd, VIDIOC_G_INPUT, &n) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get current input on device %s: %s",
v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
*input = n;
return TRUE;
}
/******************************************************
* gst_v4l2_set_input()
* Set the input of the current device
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_set_input (GstV4l2Element *v4l2element,
gint input)
{
DEBUG("trying to set input to %d", input);
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
if (ioctl(v4l2element->video_fd, VIDIOC_S_INPUT, &input) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to set input %d on device %s: %s",
input, v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
return TRUE;
}
/******************************************************
* gst_v4l2_get_output()
* Get the output of the current device
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_get_output (GstV4l2Element *v4l2element,
gint *output)
{
gint n;
DEBUG("trying to get output");
GST_V4L2_CHECK_OPEN(v4l2element);
if (ioctl(v4l2element->video_fd, VIDIOC_G_OUTPUT, &n) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get current output on device %s: %s",
v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
*output = n;
return TRUE;
}
/******************************************************
* gst_v4l2_set_output()
* Set the output of the current device
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_set_output (GstV4l2Element *v4l2element,
gint output)
{
DEBUG("trying to set output to %d", output);
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
if (ioctl(v4l2element->video_fd, VIDIOC_S_OUTPUT, &output) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to set output %d on device %s: %s",
output, v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
return TRUE;
}
/******************************************************
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
* gst_v4l2_get_frequency():
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
* get the current frequency
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_get_frequency (GstV4l2Element *v4l2element,
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
gint tunernum,
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
gulong *frequency)
{
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
struct v4l2_frequency freq;
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
DEBUG("getting current tuner frequency");
GST_V4L2_CHECK_OPEN(v4l2element);
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
freq.tuner = tunernum;
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
if (ioctl(v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get current tuner frequency for device %s: %s",
v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
*frequency = freq.frequency;
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return TRUE;
}
/******************************************************
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
* gst_v4l2_set_frequency():
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
* set frequency
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_set_frequency (GstV4l2Element *v4l2element,
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
gint tunernum,
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
gulong frequency)
{
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
struct v4l2_frequency freq;
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
DEBUG("setting current tuner frequency to %lu", frequency);
GST_V4L2_CHECK_OPEN(v4l2element);
GST_V4L2_CHECK_NOT_ACTIVE(v4l2element);
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
freq.tuner = tunernum;
/* fill in type - ignore error */
ioctl(v4l2element->video_fd, VIDIOC_G_FREQUENCY, &freq);
v4l plugins: add open/close signals v4l2 plugins: add open/close signals move source format enumeration from v4l2elem... Original commit message from CVS: v4l plugins: * add open/close signals v4l2 plugins: * add open/close signals * move source format enumeration from v4l2element to v4l2src * adapt to the final v4l2 API in kernel 2.5 (patches for 2.4 on http://bytesex.org/patches) * small tweaks
2002-11-13 12:35:56 +00:00
freq.frequency = frequency;
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
if (ioctl(v4l2element->video_fd, VIDIOC_S_FREQUENCY, &freq) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to set tuner frequency to %lu for device %s: %s",
frequency, v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
return TRUE;
}
/******************************************************
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
* gst_v4l2_signal_strength():
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
* get the strength of the signal on the current input
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
gst_v4l2_signal_strength (GstV4l2Element *v4l2element,
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
gint tunernum,
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
gulong *signal_strength)
{
struct v4l2_tuner tuner;
DEBUG("trying to get signal strength");
GST_V4L2_CHECK_OPEN(v4l2element);
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
tuner.index = tunernum;
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
if (ioctl(v4l2element->video_fd, VIDIOC_G_TUNER, &tuner) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get signal strength for device %s: %s",
v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
*signal_strength = tuner.signal;
return TRUE;
}
/******************************************************
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
* gst_v4l2_get_attribute():
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
* try to get the value of one specific attribute
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
gst_v4l2_get_attribute (GstV4l2Element *v4l2element,
int attribute_num,
int *value)
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
{
struct v4l2_control control;
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
GST_V4L2_CHECK_OPEN(v4l2element);
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
DEBUG("getting value of attribute %d", attribute_num);
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
control.id = attribute_num;
if (ioctl(v4l2element->video_fd, VIDIOC_G_CTRL, &control) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to get value for control %d on device %s: %s",
attribute_num, v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
*value = control.value;
return TRUE;
}
/******************************************************
Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src Original commit message from CVS: Unification of the way to speak to v4l2 and v4l elements... Also fix a segfautl when doing gst-inspect v4l2src
2003-03-02 21:58:52 +00:00
* gst_v4l2_set_attribute():
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
* try to set the value of one specific attribute
* return value: TRUE on success, FALSE on error
******************************************************/
gboolean
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
gst_v4l2_set_attribute (GstV4l2Element *v4l2element,
int attribute_num,
const int value)
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
{
struct v4l2_control control;
GST_V4L2_CHECK_OPEN(v4l2element);
Some interface implementations for video4linux/video4linux2 plugins: a Tuner interface, with which one can select inp... Original commit message from CVS: Some interface implementations for video4linux/video4linux2 plugins: * a Tuner interface, with which one can select inputs and stations. Audio work is underway here, but unfinished. * A Xoverlay interface with which one can do simple overlay. Similar to the API of the v4l/Xv XFree86 extension. Widget implementation for GTK-2.0 coming up in the sandbox. * Colorbalance - for adapting colors (brightness, contrast, etc.) - pretty basic and maybe somewhat overdesigned. But it'll do for now. Apart from these interfaces, there's also a loadable library 'xwindowlistener' that listenes to X for the movement of a window and the overlap of other windows. This is partly copied from xawtv (and thus partly GPL :(), but it's needed for the xoverlay interface implementation in the v4l/v4l2 elements. Lastly, some small changes to remove redundant properties from the v4l/v4l2 elements since these can be done much simpler. Comments appreciated!
2003-10-10 12:47:42 +00:00
DEBUG("setting value of attribute %d to %d", attribute_num, value);
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
control.id = attribute_num;
control.value = value;
if (ioctl(v4l2element->video_fd, VIDIOC_S_CTRL, &control) < 0) {
updating v4l2 for new error handling Original commit message from CVS: updating v4l2 for new error handling
2004-01-19 10:19:42 +00:00
gst_element_error (v4l2element, RESOURCE, SETTINGS, NULL,
("Failed to set value %d for control %d on device %s: %s",
value, attribute_num, v4l2element->device, g_strerror(errno)));
this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an el... Original commit message from CVS: this adds video4linux2 source and element plugins. The division in v4l2* plugins is the same as for v4l1 - i.e. an element, a src and a sink, but there won't be separate encoding plugins (like v4lmjpegsrc) - all functionality is (thanks to video4linux2) integrated in one plugin: v4l2src. v4l2sink is still to be done, that'll come later.
2002-09-09 07:14:35 +00:00
return FALSE;
}
return TRUE;
}
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