diff -r 4c282e7dd6d3 -r 5505e8908944 gst_plugins_good/gst/camerabin/gstcamerabinphotography.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst_plugins_good/gst/camerabin/gstcamerabinphotography.c Fri Jan 22 09:59:59 2010 +0200 @@ -0,0 +1,222 @@ +/* + * GStreamer + * Copyright (C) 2008 Nokia Corporation + * + * 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 +#endif + +#include "gstcamerabinphotography.h" +#include "gstcamerabin.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)) + +#define GST_PHOTOGRAPHY_IMPL_TEMPLATE(function_name, param_type) \ +static gboolean \ +gst_camerabin_set_ ## function_name (GstPhotography *photo, param_type param) \ +{ \ + 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_set_ ## function_name (GST_PHOTOGRAPHY (camera->src_vid_src), param); \ + } \ + return ret; \ +} \ +static gboolean \ +gst_camerabin_get_ ## function_name (GstPhotography *photo, param_type * param) \ +{ \ + 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_ ## function_name (GST_PHOTOGRAPHY (camera->src_vid_src), param); \ + } \ + return ret; \ +} + +GST_PHOTOGRAPHY_IMPL_TEMPLATE (ev_compensation, gfloat); +GST_PHOTOGRAPHY_IMPL_TEMPLATE (iso_speed, guint); +GST_PHOTOGRAPHY_IMPL_TEMPLATE (white_balance_mode, GstWhiteBalanceMode); +GST_PHOTOGRAPHY_IMPL_TEMPLATE (colour_tone_mode, GstColourToneMode); +GST_PHOTOGRAPHY_IMPL_TEMPLATE (flash_mode, GstFlashMode); + +static gboolean +gst_camerabin_set_zoom (GstPhotography * photo, gfloat zoom) +{ + GstCameraBin *camera; + + g_return_val_if_fail (photo != NULL, FALSE); + + camera = GST_CAMERABIN (photo); + + /* camerabin can zoom by itself */ + g_object_set (camera, "zoom", (gint) (CLAMP (zoom, 1.0, 10.0) * 100), NULL); + + return TRUE; +} + +static gboolean +gst_camerabin_get_zoom (GstPhotography * photo, gfloat * zoom) +{ + GstCameraBin *camera; + gint cb_zoom = 0; + + g_return_val_if_fail (photo != NULL, FALSE); + + camera = GST_CAMERABIN (photo); + + g_object_get (camera, "zoom", &cb_zoom, NULL); + *zoom = (gfloat) (cb_zoom / 100.0); + + return TRUE; +} + +static gboolean +gst_camerabin_set_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 (scene_mode == GST_PHOTOGRAPHY_SCENE_MODE_NIGHT) { + 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, "user-res-fps", camera->width, + camera->height, 0, 0, 0); + } 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, "user-res-fps", camera->width, + camera->height, camera->pre_night_fps_n, camera->pre_night_fps_d, 0); + } + } + + if (PHOTOGRAPHY_IS_OK (camera->src_vid_src)) { + ret = gst_photography_set_scene_mode (GST_PHOTOGRAPHY (camera->src_vid_src), + scene_mode); + } + 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); + } +} + + +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->set_zoom = gst_camerabin_set_zoom; + iface->get_zoom = gst_camerabin_get_zoom; + + iface->get_capabilities = gst_camerabin_get_capabilities; + + iface->set_autofocus = gst_camerabin_set_autofocus; +}