gstreamer/gst/camerabin/gstcamerabinphotography.c
Thiago Santos c48de5c594 camerabin: Add video-capture-width/height/framerate properties
Adds video-capture-width, video-capture-height and
video-capture-framerate properties to allow applications to
get/set those values. Getting was not possible before this patch,
and setting was done through the set-video-resolution-fps
action, which sets the properties and promptly resets the
video source to use them.

Fixes #614958
2010-04-13 20:37:03 -03:00

777 lines
20 KiB
C

/*
* GStreamer
* Copyright (C) 2008 Nokia Corporation <multimedia@maemo.org>
*
* Photography interface implementation for camerabin.
*
* 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 <string.h>
#include "gstcamerabinphotography.h"
#include "gstcamerabin.h"
#include "gstcamerabin-enum.h"
GST_DEBUG_CATEGORY_STATIC (camerabinphoto_debug);
#define GST_CAT_DEFAULT camerabinphoto_debug
#define PHOTOGRAPHY_IS_OK(photo_elem) (GST_IS_ELEMENT (photo_elem) && \
gst_element_implements_interface (photo_elem, GST_TYPE_PHOTOGRAPHY))
static void
gst_camerabin_handle_scene_mode (GstCameraBin * camera,
GstSceneMode scene_mode);
static gboolean
gst_camerabin_set_ev_compensation (GstPhotography * photo,
gfloat ev_compensation)
{
GstCameraBin *camera;
gboolean ret = TRUE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* Cache the setting */
camera->photo_settings.ev_compensation = ev_compensation;
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_set_ev_compensation (GST_PHOTOGRAPHY
(camera->src_vid_src), ev_compensation);
}
return ret;
}
static gboolean
gst_camerabin_get_ev_compensation (GstPhotography * photo,
gfloat * ev_compensation)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_get_ev_compensation (GST_PHOTOGRAPHY
(camera->src_vid_src), ev_compensation);
}
return ret;
}
static gboolean
gst_camerabin_set_iso_speed (GstPhotography * photo, guint iso_speed)
{
GstCameraBin *camera;
gboolean ret = TRUE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* Cache the setting */
camera->photo_settings.iso_speed = iso_speed;
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_set_iso_speed (GST_PHOTOGRAPHY (camera->src_vid_src),
iso_speed);
}
return ret;
}
static gboolean
gst_camerabin_get_iso_speed (GstPhotography * photo, guint * iso_speed)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_get_iso_speed (GST_PHOTOGRAPHY (camera->src_vid_src),
iso_speed);
}
return ret;
}
static gboolean
gst_camerabin_set_white_balance_mode (GstPhotography * photo,
GstWhiteBalanceMode white_balance_mode)
{
GstCameraBin *camera;
gboolean ret = TRUE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* Cache the setting */
camera->photo_settings.wb_mode = white_balance_mode;
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_set_white_balance_mode (GST_PHOTOGRAPHY
(camera->src_vid_src), white_balance_mode);
}
return ret;
}
static gboolean
gst_camerabin_get_white_balance_mode (GstPhotography * photo,
GstWhiteBalanceMode * white_balance_mode)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_get_white_balance_mode (GST_PHOTOGRAPHY
(camera->src_vid_src), white_balance_mode);
}
return ret;
}
static gboolean
gst_camerabin_set_colour_tone_mode (GstPhotography * photo,
GstColourToneMode colour_tone_mode)
{
GstCameraBin *camera;
gboolean ret = TRUE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* Cache the setting */
camera->photo_settings.tone_mode = colour_tone_mode;
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_set_colour_tone_mode (GST_PHOTOGRAPHY
(camera->src_vid_src), colour_tone_mode);
}
return ret;
}
static gboolean
gst_camerabin_get_colour_tone_mode (GstPhotography * photo,
GstColourToneMode * colour_tone_mode)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_get_colour_tone_mode (GST_PHOTOGRAPHY
(camera->src_vid_src), colour_tone_mode);
}
return ret;
}
static gboolean
gst_camerabin_set_flash_mode (GstPhotography * photo, GstFlashMode flash_mode)
{
GstCameraBin *camera;
gboolean ret = TRUE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* Cache the setting */
camera->photo_settings.flash_mode = flash_mode;
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_set_flash_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
flash_mode);
}
return ret;
}
static gboolean
gst_camerabin_get_flash_mode (GstPhotography * photo, GstFlashMode * flash_mode)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_get_flash_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
flash_mode);
}
return ret;
}
static gboolean
gst_camerabin_set_scene_mode (GstPhotography * photo, GstSceneMode scene_mode)
{
GstCameraBin *camera;
gboolean ret = TRUE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* Cache the setting */
camera->photo_settings.scene_mode = scene_mode;
gst_camerabin_handle_scene_mode (camera, scene_mode);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_set_scene_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
scene_mode);
if (ret) {
gst_photography_get_config (GST_PHOTOGRAPHY (camera->src_vid_src),
&camera->photo_settings);
}
}
return ret;
}
static gboolean
gst_camerabin_get_scene_mode (GstPhotography * photo, GstSceneMode * scene_mode)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_get_scene_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
scene_mode);
}
return ret;
}
static GstPhotoCaps
gst_camerabin_get_capabilities (GstPhotography * photo)
{
GstCameraBin *camera;
/* camerabin can zoom by itself */
GstPhotoCaps pcaps = GST_PHOTOGRAPHY_CAPS_ZOOM;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (GST_IS_ELEMENT (camera->src_vid_src) &&
gst_element_implements_interface (camera->src_vid_src,
GST_TYPE_PHOTOGRAPHY)) {
GstPhotography *p2 = GST_PHOTOGRAPHY (camera->src_vid_src);
pcaps |= gst_photography_get_capabilities (p2);
}
return pcaps;
}
static void
gst_camerabin_set_autofocus (GstPhotography * photo, gboolean on)
{
GstCameraBin *camera;
g_return_if_fail (photo != NULL);
camera = GST_CAMERABIN (photo);
GST_DEBUG_OBJECT (camera, "setting autofocus %s", on ? "ON" : "OFF");
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
gst_photography_set_autofocus (GST_PHOTOGRAPHY (camera->src_vid_src), on);
}
}
static gboolean
gst_camerabin_get_aperture (GstPhotography * photo, guint * aperture)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_get_aperture (GST_PHOTOGRAPHY (camera->src_vid_src),
aperture);
}
return ret;
}
static void
gst_camerabin_set_aperture (GstPhotography * photo, guint aperture)
{
GstCameraBin *camera;
g_return_if_fail (photo != NULL);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
gst_photography_set_aperture (GST_PHOTOGRAPHY (camera->src_vid_src),
aperture);
}
}
static gboolean
gst_camerabin_get_exposure (GstPhotography * photo, guint32 * exposure)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret = gst_photography_get_exposure (GST_PHOTOGRAPHY (camera->src_vid_src),
exposure);
}
return ret;
}
static void
gst_camerabin_set_exposure (GstPhotography * photo, guint32 exposure)
{
GstCameraBin *camera;
g_return_if_fail (photo != NULL);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
gst_photography_set_exposure (GST_PHOTOGRAPHY (camera->src_vid_src),
exposure);
}
}
static gboolean
gst_camerabin_set_config (GstPhotography * photo, GstPhotoSettings * config)
{
GstCameraBin *camera;
gboolean ret = TRUE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* Cache the settings */
memcpy (&camera->photo_settings, config, sizeof (GstPhotoSettings));
/* Handle night mode */
gst_camerabin_handle_scene_mode (camera, config->scene_mode);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_set_config (GST_PHOTOGRAPHY (camera->src_vid_src),
config);
}
return ret;
}
static gboolean
gst_camerabin_get_config (GstPhotography * photo, GstPhotoSettings * config)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_get_config (GST_PHOTOGRAPHY (camera->src_vid_src),
config);
}
return ret;
}
static void
gst_camerabin_handle_scene_mode (GstCameraBin * camera, GstSceneMode scene_mode)
{
if (scene_mode == GST_PHOTOGRAPHY_SCENE_MODE_NIGHT) {
if (!camera->night_mode) {
GST_DEBUG ("enabling night mode, lowering fps");
/* Make camerabin select the lowest allowed frame rate */
camera->night_mode = TRUE;
/* Remember frame rate before setting night mode */
camera->pre_night_fps_n = camera->fps_n;
camera->pre_night_fps_d = camera->fps_d;
g_signal_emit_by_name (camera, "set-video-resolution-fps", camera->width,
camera->height, 0, 1, NULL);
} else {
GST_DEBUG ("night mode already enabled");
}
} else {
if (camera->night_mode) {
GST_DEBUG ("disabling night mode, restoring fps to %d/%d",
camera->pre_night_fps_n, camera->pre_night_fps_d);
camera->night_mode = FALSE;
g_signal_emit_by_name (camera, "set-video-resolution-fps", camera->width,
camera->height, camera->pre_night_fps_n, camera->pre_night_fps_d, 0);
}
}
}
static gboolean
gst_camerabin_set_flicker_mode (GstPhotography * photo,
GstFlickerReductionMode flicker_mode)
{
GstCameraBin *camera;
gboolean ret = TRUE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* Cache the setting */
camera->photo_settings.flicker_mode = flicker_mode;
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_set_flicker_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
flicker_mode);
}
return ret;
}
static gboolean
gst_camerabin_get_flicker_mode (GstPhotography * photo,
GstFlickerReductionMode * flicker_mode)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_get_flicker_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
flicker_mode);
}
return ret;
}
static gboolean
gst_camerabin_set_focus_mode (GstPhotography * photo, GstFocusMode focus_mode)
{
GstCameraBin *camera;
gboolean ret = TRUE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
/* Cache the setting */
camera->photo_settings.focus_mode = focus_mode;
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_set_focus_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
focus_mode);
}
return ret;
}
static gboolean
gst_camerabin_get_focus_mode (GstPhotography * photo, GstFocusMode * focus_mode)
{
GstCameraBin *camera;
gboolean ret = FALSE;
g_return_val_if_fail (photo != NULL, FALSE);
camera = GST_CAMERABIN (photo);
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
ret =
gst_photography_get_focus_mode (GST_PHOTOGRAPHY (camera->src_vid_src),
focus_mode);
}
return ret;
}
gboolean
gst_camerabin_photography_get_property (GstCameraBin * camera, guint prop_id,
GValue * value)
{
gboolean ret = FALSE;
GST_DEBUG_OBJECT (camera, "Photointerface property: %d", prop_id);
switch (prop_id) {
case ARG_WB_MODE:
{
GstWhiteBalanceMode wb_mode;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_WB_MODE ====");
if (gst_camerabin_get_white_balance_mode ((GstPhotography *) camera,
&wb_mode)) {
g_value_set_enum (value, wb_mode);
}
ret = TRUE;
break;
}
case ARG_COLOUR_TONE:
{
GstColourToneMode tone;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_COLOUR_TONE ====");
if (gst_camerabin_get_colour_tone_mode ((GstPhotography *) camera, &tone)) {
g_value_set_enum (value, tone);
}
ret = TRUE;
break;
}
case ARG_SCENE_MODE:
{
GstSceneMode scene;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_SCENE_MODE ====");
if (gst_camerabin_get_scene_mode ((GstPhotography *) camera, &scene)) {
g_value_set_enum (value, scene);
}
ret = TRUE;
break;
}
case ARG_FLASH_MODE:
{
GstFlashMode flash;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_FLASH_MODE ====");
if (gst_camerabin_get_flash_mode ((GstPhotography *) camera, &flash)) {
g_value_set_enum (value, flash);
}
ret = TRUE;
break;
}
case ARG_CAPABILITIES:
{
gulong capabilities;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_CAPABILITIES ====");
capabilities =
(gulong) gst_camerabin_get_capabilities ((GstPhotography *) camera);
g_value_set_ulong (value, capabilities);
ret = TRUE;
break;
}
case ARG_EV_COMP:
{
gfloat ev_comp;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_EV_COMP ====");
if (gst_camerabin_get_ev_compensation ((GstPhotography *) camera,
&ev_comp)) {
g_value_set_float (value, ev_comp);
}
ret = TRUE;
break;
}
case ARG_ISO_SPEED:
{
guint iso_speed;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_ISO_SPEED ====");
if (gst_camerabin_get_iso_speed ((GstPhotography *) camera, &iso_speed)) {
g_value_set_uint (value, iso_speed);
}
ret = TRUE;
break;
}
case ARG_APERTURE:
{
guint aperture;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_APERTURE ====");
if (gst_camerabin_get_aperture ((GstPhotography *) camera, &aperture)) {
g_value_set_uint (value, aperture);
}
ret = TRUE;
break;
}
case ARG_EXPOSURE:
{
guint32 exposure;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_EXPOSURE ====");
if (gst_camerabin_get_exposure ((GstPhotography *) camera, &exposure)) {
g_value_set_uint (value, exposure);
}
ret = TRUE;
break;
}
case ARG_IMAGE_CAPTURE_SUPPORTED_CAPS:
{
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_IMAGE_CAPTURE_CAPS ====");
if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) {
g_object_get_property (G_OBJECT (camera->src_vid_src),
"image-capture-supported-caps", value);
} else {
g_object_get_property (G_OBJECT (camera), "video-source-caps", value);
}
ret = TRUE;
break;
}
case ARG_FLICKER_MODE:
{
GstFlickerReductionMode mode;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_FLICKER_MODE ====");
if (gst_camerabin_get_flicker_mode ((GstPhotography *) camera, &mode)) {
g_value_set_enum (value, mode);
}
ret = TRUE;
break;
}
case ARG_FOCUS_MODE:
{
GstFocusMode mode;
GST_DEBUG_OBJECT (camera, "==== GETTING PROP_FOCUS_MODE ====");
if (gst_camerabin_get_focus_mode ((GstPhotography *) camera, &mode)) {
g_value_set_enum (value, mode);
}
ret = TRUE;
break;
}
default:
break;
}
return ret;
}
/*
*
*/
gboolean
gst_camerabin_photography_set_property (GstCameraBin * camera, guint prop_id,
const GValue * value)
{
gboolean ret = FALSE;
switch (prop_id) {
case ARG_WB_MODE:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_WB_MODE ====");
gst_camerabin_set_white_balance_mode ((GstPhotography *) camera,
g_value_get_enum (value));
ret = TRUE;
break;
case ARG_COLOUR_TONE:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_COLOUR_TONE ====");
gst_camerabin_set_colour_tone_mode ((GstPhotography *) camera,
g_value_get_enum (value));
ret = TRUE;
break;
case ARG_SCENE_MODE:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_SCENE_MODE ====");
gst_camerabin_set_scene_mode ((GstPhotography *) camera,
g_value_get_enum (value));
ret = TRUE;
break;
case ARG_FLASH_MODE:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_FLASH_MODE ====");
gst_camerabin_set_flash_mode ((GstPhotography *) camera,
g_value_get_enum (value));
ret = TRUE;
break;
case ARG_EV_COMP:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_EV_COMP ====");
gst_camerabin_set_ev_compensation ((GstPhotography *) camera,
g_value_get_float (value));
ret = TRUE;
break;
case ARG_ISO_SPEED:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_ISO_SPEED ====");
gst_camerabin_set_iso_speed ((GstPhotography *) camera,
g_value_get_uint (value));
ret = TRUE;
break;
case ARG_APERTURE:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_APERTURE ====");
gst_camerabin_set_aperture ((GstPhotography *) camera,
g_value_get_uint (value));
ret = TRUE;
break;
case ARG_EXPOSURE:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_EXPOSURE ====");
gst_camerabin_set_exposure ((GstPhotography *) camera,
g_value_get_uint (value));
ret = TRUE;
break;
case ARG_FLICKER_MODE:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_FLICKER_MODE ====");
gst_camerabin_set_flicker_mode ((GstPhotography *) camera,
g_value_get_enum (value));
ret = TRUE;
break;
case ARG_FOCUS_MODE:
GST_DEBUG_OBJECT (camera, "==== SETTING PROP_FOCUS_MODE ====");
gst_camerabin_set_focus_mode ((GstPhotography *) camera,
g_value_get_enum (value));
ret = TRUE;
break;
default:
break;
}
return ret;
}
void
gst_camerabin_photography_init (GstPhotographyInterface * iface)
{
GST_DEBUG_CATEGORY_INIT (camerabinphoto_debug, "camerabinphoto", 0,
"Camerabin photography interface debugging");
GST_INFO ("initing");
iface->set_ev_compensation = gst_camerabin_set_ev_compensation;
iface->get_ev_compensation = gst_camerabin_get_ev_compensation;
iface->set_iso_speed = gst_camerabin_set_iso_speed;
iface->get_iso_speed = gst_camerabin_get_iso_speed;
iface->set_white_balance_mode = gst_camerabin_set_white_balance_mode;
iface->get_white_balance_mode = gst_camerabin_get_white_balance_mode;
iface->set_colour_tone_mode = gst_camerabin_set_colour_tone_mode;
iface->get_colour_tone_mode = gst_camerabin_get_colour_tone_mode;
iface->set_scene_mode = gst_camerabin_set_scene_mode;
iface->get_scene_mode = gst_camerabin_get_scene_mode;
iface->set_flash_mode = gst_camerabin_set_flash_mode;
iface->get_flash_mode = gst_camerabin_get_flash_mode;
iface->get_capabilities = gst_camerabin_get_capabilities;
iface->set_autofocus = gst_camerabin_set_autofocus;
iface->set_config = gst_camerabin_set_config;
iface->get_config = gst_camerabin_get_config;
}