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arvviewer.c
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arvviewer.c
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/* Aravis - Digital camera library
*
* Copyright © 2009-2019 Emmanuel Pacaud
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* Author: Emmanuel Pacaud <emmanuel.pacaud@free.fr>
*/
#include "libxml/parser.h"
#include <gtk/gtk.h>
#include <gst/gst.h>
#include <gst/app/gstappsrc.h>
#include <gst/video/videooverlay.h>
#include <gst/video/video.h>
#include <arv.h>
#include <arvdebugprivate.h>
#include <arvviewer.h>
#include <math.h>
#include <memory.h>
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h> // for GDK_WINDOW_XID
#endif
#ifdef GDK_WINDOWING_WIN32
#include <gdk/gdkwin32.h> // for GDK_WINDOW_HWND
#endif
#define ARV_VIEWER_NOTIFICATION_TIMEOUT 10
#define ARV_VIEWER_N_BUFFERS 10
static gboolean has_autovideo_sink = FALSE;
static gboolean has_gtksink = FALSE;
static gboolean has_gtkglsink = FALSE;
static gboolean has_bayer2rgb = FALSE;
static gboolean
gstreamer_plugin_check (void)
{
static gsize check_done = 0;
static gboolean check_success = FALSE;
if (g_once_init_enter (&check_done)) {
GstRegistry *registry;
GstPluginFeature *feature;
unsigned int i;
gboolean success = TRUE;
static char *plugins[] = {
"appsrc",
"videoconvert",
"videoflip"
};
registry = gst_registry_get ();
for (i = 0; i < G_N_ELEMENTS (plugins); i++) {
feature = gst_registry_lookup_feature (registry, plugins[i]);
if (!GST_IS_PLUGIN_FEATURE (feature)) {
g_print ("Gstreamer plugin '%s' is missing.\n", plugins[i]);
success = FALSE;
}
else
g_object_unref (feature);
}
feature = gst_registry_lookup_feature (registry, "autovideosink");
if (GST_IS_PLUGIN_FEATURE (feature)) {
has_autovideo_sink = TRUE;
g_object_unref (feature);
}
feature = gst_registry_lookup_feature (registry, "gtksink");
if (GST_IS_PLUGIN_FEATURE (feature)) {
has_gtksink = TRUE;
g_object_unref (feature);
}
feature = gst_registry_lookup_feature (registry, "gtkglsink");
if (GST_IS_PLUGIN_FEATURE (feature)) {
has_gtkglsink = TRUE;
g_object_unref (feature);
}
feature = gst_registry_lookup_feature (registry, "bayer2rgb");
if (GST_IS_PLUGIN_FEATURE (feature)) {
has_bayer2rgb = TRUE;
g_object_unref (feature);
}
if (!has_autovideo_sink && !has_gtkglsink && !has_gtksink) {
g_print ("Missing GStreamer video output plugin (autovideosink, gtksink or gtkglsink)\n");
success = FALSE;
}
if (!success)
g_print ("Check your gstreamer installation.\n");
/* Kludge, prevent autoloading of coglsink, which doesn't seem to work for us */
feature = gst_registry_lookup_feature (registry, "coglsink");
if (GST_IS_PLUGIN_FEATURE (feature)) {
gst_plugin_feature_set_rank (feature, GST_RANK_NONE);
g_object_unref (feature);
}
check_success = success;
g_once_init_leave (&check_done, 1);
}
return check_success;
}
struct _ArvViewer {
GtkApplication parent_instance;
ArvCamera *camera;
char *camera_name;
ArvStream *stream;
ArvBuffer *last_buffer;
guint component_id;
GstElement *pipeline;
GstElement *appsrc;
GstElement *transform;
GstElement *videosink;
guint rotation;
gboolean flip_vertical;
gboolean flip_horizontal;
double gain_min, gain_max;
double exposure_min, exposure_max;
ArvGcRepresentation gain_representation;
ArvGcRepresentation exposure_time_representation;
GtkWidget *main_window;
GtkWidget *main_stack;
GtkWidget *main_headerbar;
GtkWidget *camera_box;
GtkWidget *refresh_button;
GtkWidget *video_mode_button;
GtkWidget *camera_tree;
GtkWidget *back_button;
GtkWidget *snapshot_button;
GtkWidget *rotate_cw_button;
GtkWidget *flip_vertical_toggle;
GtkWidget *flip_horizontal_toggle;
GtkWidget *camera_parameters;
GtkWidget *component_label;
GtkWidget *component_combo;
GtkWidget *component_check;
GtkWidget *pixel_format_combo;
GtkWidget *camera_x;
GtkWidget *camera_y;
GtkWidget *camera_position_label;
GtkWidget *camera_position_units;
GtkWidget *camera_binning_x;
GtkWidget *camera_binning_y;
GtkWidget *camera_binning_label;
GtkWidget *camera_binning_units;
GtkWidget *camera_width;
GtkWidget *camera_height;
GtkWidget *video_box;
GtkWidget *video_frame;
GtkWidget *fps_label;
GtkWidget *image_label;
GtkWidget *trigger_combo_box;
GtkWidget *frame_rate_entry;
GtkWidget *exposure_spin_button;
GtkWidget *exposure_hscale;
GtkWidget *auto_exposure_toggle;
GtkWidget *gain_spin_button;
GtkWidget *gain_hscale;
GtkWidget *auto_gain_toggle;
GtkWidget *black_level_spin_button;
GtkWidget *black_level_hscale;
GtkWidget *auto_black_level_toggle;
GtkWidget *acquisition_button;
GtkWidget *notification_revealer;
GtkWidget *notification_label;
GtkWidget *notification_details;
GtkWidget *notification_dismiss;
guint notification_timeout;
gulong camera_selected;
gulong exposure_spin_changed;
gulong exposure_hscale_changed;
gulong auto_exposure_clicked;
gulong gain_spin_changed;
gulong gain_hscale_changed;
gulong auto_gain_clicked;
gulong black_level_spin_changed;
gulong black_level_hscale_changed;
gulong auto_black_level_clicked;
gulong camera_x_changed;
gulong camera_y_changed;
gulong camera_binning_x_changed;
gulong camera_binning_y_changed;
gulong camera_width_changed;
gulong camera_height_changed;
gulong component_changed;
gulong component_toggled;
gulong pixel_format_changed;
gulong rotate_cw_clicked;
gulong flip_vertical_clicked;
gulong flip_horizontal_clicked;
guint gain_update_event;
guint black_level_update_event;
guint exposure_update_event;
guint status_bar_update_event;
gint64 last_status_bar_update_time_ms;
guint64 last_n_images;
guint64 last_n_bytes;
gboolean auto_socket_buffer;
gboolean packet_resend;
guint initial_packet_timeout;
guint packet_timeout;
guint frame_retention;
ArvRegisterCachePolicy register_cache_policy;
ArvRangeCheckPolicy range_check_policy;
ArvUvUsbMode usb_mode;
gulong video_window_xid;
};
typedef GtkApplicationClass ArvViewerClass;
G_DEFINE_TYPE (ArvViewer, arv_viewer, GTK_TYPE_APPLICATION)
typedef enum {
ARV_VIEWER_MODE_CAMERA_LIST,
ARV_VIEWER_MODE_VIDEO
} ArvViewerMode;
static void select_mode (ArvViewer *viewer, ArvViewerMode mode);
void
arv_viewer_set_options (ArvViewer *viewer,
gboolean auto_socket_buffer,
gboolean packet_resend,
guint initial_packet_timeout,
guint packet_timeout,
guint frame_retention,
ArvRegisterCachePolicy register_cache_policy,
ArvRangeCheckPolicy range_check_policy,
ArvUvUsbMode usb_mode)
{
g_return_if_fail (viewer != NULL);
viewer->auto_socket_buffer = auto_socket_buffer;
viewer->packet_resend = packet_resend;
viewer->initial_packet_timeout = initial_packet_timeout;
viewer->packet_timeout = packet_timeout;
viewer->frame_retention = frame_retention;
viewer->register_cache_policy = register_cache_policy;
viewer->range_check_policy = range_check_policy;
viewer->usb_mode = usb_mode;
}
static double
arv_viewer_value_to_log (double value, double min, double max)
{
if (min >= max)
return 1.0;
if (value < min)
return 0.0;
return (log10 (value) - log10 (min)) / (log10 (max) - log10 (min));
}
static double
arv_viewer_value_from_log (double value, double min, double max)
{
if (min <= 0.0 || max <= 0)
return 0.0;
if (value > 1.0)
return max;
if (value < 0.0)
return min;
return pow (10.0, (value * (log10 (max) - log10 (min)) + log10 (min)));
}
static void
notification_dismiss_clicked_cb (GtkButton *dismiss, ArvViewer *viewer)
{
if (viewer->notification_timeout > 0)
g_source_remove (viewer->notification_timeout);
gtk_revealer_set_reveal_child (GTK_REVEALER (viewer->notification_revealer), FALSE);
viewer->notification_timeout = 0;
}
static gboolean
hide_notification (gpointer user_data)
{
ArvViewer *viewer = user_data;
gtk_revealer_set_reveal_child (GTK_REVEALER (viewer->notification_revealer), FALSE);
viewer->notification_timeout = 0;
return G_SOURCE_REMOVE;
}
static void
arv_viewer_show_notification (ArvViewer *viewer, const char *message, const char *details)
{
g_return_if_fail (ARV_IS_VIEWER (viewer));
g_return_if_fail (message != NULL);
if (viewer->notification_timeout > 0)
g_source_remove (viewer->notification_timeout);
gtk_revealer_set_reveal_child (GTK_REVEALER (viewer->notification_revealer), FALSE);
gtk_label_set_text (GTK_LABEL (viewer->notification_label), message);
if (details != NULL) {
g_autofree char *text = g_strdup_printf ("<small>%s</small>", details);
gtk_widget_show (viewer->notification_details);
gtk_label_set_markup (GTK_LABEL (viewer->notification_details), text);
} else {
gtk_widget_hide (viewer->notification_details);
}
gtk_revealer_set_reveal_child (GTK_REVEALER (viewer->notification_revealer), TRUE);
viewer->notification_timeout = g_timeout_add_seconds (ARV_VIEWER_NOTIFICATION_TIMEOUT, hide_notification, viewer);
}
typedef struct {
GWeakRef stream;
ArvBuffer* arv_buffer;
void *data;
} ArvGstBufferReleaseData;
static void
gst_buffer_release_cb (void *user_data)
{
ArvGstBufferReleaseData* release_data = user_data;
ArvStream* stream = g_weak_ref_get (&release_data->stream);
g_free (release_data->data);
if (stream) {
gint n_input_buffers, n_output_buffers, n_buffer_filling;
arv_stream_get_n_owned_buffers (stream, &n_input_buffers, &n_output_buffers, &n_buffer_filling);
arv_debug_viewer ("push buffer (input:%d,output:%d,filling:%d)",
n_input_buffers, n_output_buffers, n_buffer_filling);
arv_stream_push_buffer (stream, release_data->arv_buffer);
g_object_unref (stream);
} else {
arv_info_viewer ("invalid stream object");
g_object_unref (release_data->arv_buffer);
}
g_weak_ref_clear (&release_data->stream);
g_free (release_data);
}
static GstBuffer *
arv_to_gst_buffer (ArvBuffer *arv_buffer, guint part_id, ArvStream *stream)
{
ArvGstBufferReleaseData* release_data;
int arv_row_stride;
int width, height;
char *buffer_data;
size_t buffer_size;
size_t size;
void *data;
buffer_data = (char *) arv_buffer_get_part_data (arv_buffer, part_id, &buffer_size);
arv_buffer_get_part_region (arv_buffer, part_id, NULL, NULL, &width, &height);
arv_row_stride = width * ARV_PIXEL_FORMAT_BIT_PER_PIXEL (arv_buffer_get_part_pixel_format (arv_buffer, part_id)) / 8;
release_data = g_new0 (ArvGstBufferReleaseData, 1);
g_weak_ref_init (&release_data->stream, stream);
release_data->arv_buffer = arv_buffer;
/* Gstreamer requires row stride to be a multiple of 4 */
if ((arv_row_stride & 0x3) != 0) {
int gst_row_stride;
int i;
gst_row_stride = (arv_row_stride & ~(0x3)) + 4;
size = height * gst_row_stride;
data = g_malloc (size);
for (i = 0; i < height; i++)
memcpy (((char *) data) + i * gst_row_stride, buffer_data + i * arv_row_stride, arv_row_stride);
release_data->data = data;
} else {
data = buffer_data;
size = buffer_size;
}
return gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
data, size, 0, size,
release_data, gst_buffer_release_cb);
}
static void
new_buffer_cb (ArvStream *stream, ArvViewer *viewer)
{
ArvBuffer *arv_buffer;
gint n_input_buffers, n_output_buffers, n_buffer_filling;
arv_buffer = arv_stream_pop_buffer (stream);
if (arv_buffer == NULL)
return;
arv_stream_get_n_owned_buffers (stream, &n_input_buffers, &n_output_buffers, &n_buffer_filling);
arv_debug_viewer ("pop buffer (input:%d,output:%d,filling:%d)",
n_input_buffers, n_output_buffers, n_buffer_filling);
if (arv_buffer_get_status (arv_buffer) == ARV_BUFFER_STATUS_SUCCESS &&
/* Ensure there is still available buffers for the stream thread */
n_input_buffers + n_output_buffers + n_buffer_filling > 0) {
size_t size;
gint part_id;
part_id = arv_buffer_find_component(arv_buffer, viewer->component_id);
if (part_id < 0)
part_id = 0;
arv_buffer_get_part_data (arv_buffer, part_id, &size);
g_clear_object( &viewer->last_buffer );
viewer->last_buffer = g_object_ref( arv_buffer );
gst_app_src_push_buffer (GST_APP_SRC (viewer->appsrc), arv_to_gst_buffer (arv_buffer, part_id, stream));
} else {
arv_debug_viewer ("push discarded buffer");
arv_stream_push_buffer (stream, arv_buffer);
}
}
static void
_apply_frame_rate (GtkEntry *entry, ArvViewer *viewer, gboolean grab_focus)
{
char *text;
double frame_rate;
text = (char *) gtk_entry_get_text (entry);
arv_camera_set_frame_rate (viewer->camera, g_strtod (text, NULL), NULL);
frame_rate = arv_camera_get_frame_rate (viewer->camera, NULL);
text = g_strdup_printf ("%g", frame_rate);
gtk_entry_set_text (entry, text);
if (grab_focus)
gtk_widget_grab_focus (GTK_WIDGET(entry));
g_free (text);
}
static void
frame_rate_entry_cb (GtkEntry *entry, ArvViewer *viewer)
{
_apply_frame_rate (entry, viewer, TRUE);
}
static gboolean
frame_rate_entry_focus_cb (GtkEntry *entry, GdkEventFocus *event,
ArvViewer *viewer)
{
_apply_frame_rate (entry, viewer, FALSE);
return FALSE;
}
static void
exposure_spin_cb (GtkSpinButton *spin_button, ArvViewer *viewer)
{
double exposure = gtk_spin_button_get_value (spin_button);
double scaled_exposure = viewer->exposure_time_representation == ARV_GC_REPRESENTATION_LOGARITHMIC ?
arv_viewer_value_to_log (exposure, viewer->exposure_min, viewer->exposure_max) : exposure;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_exposure_toggle), FALSE);
arv_camera_set_exposure_time (viewer->camera, exposure, NULL);
g_signal_handler_block (viewer->exposure_hscale, viewer->exposure_hscale_changed);
gtk_range_set_value (GTK_RANGE (viewer->exposure_hscale), scaled_exposure);
gtk_widget_grab_focus (GTK_WIDGET (spin_button));
g_signal_handler_unblock (viewer->exposure_hscale, viewer->exposure_hscale_changed);
}
static void
gain_spin_cb (GtkSpinButton *spin_button, ArvViewer *viewer)
{
double gain = gtk_spin_button_get_value (spin_button);
double scaled_gain = viewer->gain_representation == ARV_GC_REPRESENTATION_LOGARITHMIC ?
arv_viewer_value_to_log (gain, viewer->gain_min, viewer->gain_max) : gain;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_gain_toggle), FALSE);
arv_camera_set_gain (viewer->camera, gtk_spin_button_get_value (spin_button), NULL);
g_signal_handler_block (viewer->gain_hscale, viewer->gain_hscale_changed);
gtk_range_set_value (GTK_RANGE (viewer->gain_hscale), scaled_gain);
gtk_widget_grab_focus (GTK_WIDGET (spin_button));
g_signal_handler_unblock (viewer->gain_hscale, viewer->gain_hscale_changed);
}
static void
black_level_spin_cb (GtkSpinButton *spin_button, ArvViewer *viewer)
{
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_black_level_toggle), FALSE);
arv_camera_set_black_level (viewer->camera, gtk_spin_button_get_value (spin_button), NULL);
g_signal_handler_block (viewer->black_level_hscale, viewer->black_level_hscale_changed);
gtk_range_set_value (GTK_RANGE (viewer->black_level_hscale), gtk_spin_button_get_value (spin_button));
gtk_widget_grab_focus (GTK_WIDGET (spin_button));
g_signal_handler_unblock (viewer->black_level_hscale, viewer->black_level_hscale_changed);
}
static void
exposure_scale_cb (GtkRange *range, ArvViewer *viewer)
{
double scaled_exposure = gtk_range_get_value (range);
double exposure = viewer->exposure_time_representation == ARV_GC_REPRESENTATION_LOGARITHMIC ?
arv_viewer_value_from_log (scaled_exposure, viewer->exposure_min, viewer->exposure_max) : scaled_exposure;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_exposure_toggle), FALSE);
arv_camera_set_exposure_time (viewer->camera, exposure, NULL);
g_signal_handler_block (viewer->exposure_spin_button, viewer->exposure_spin_changed);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->exposure_spin_button), exposure);
g_signal_handler_unblock (viewer->exposure_spin_button, viewer->exposure_spin_changed);
}
static void
gain_scale_cb (GtkRange *range, ArvViewer *viewer)
{
double scaled_gain = gtk_range_get_value (range);
double gain = viewer->gain_representation == ARV_GC_REPRESENTATION_LOGARITHMIC ?
arv_viewer_value_from_log (scaled_gain, viewer->gain_min, viewer->gain_max) : scaled_gain;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_gain_toggle), FALSE);
arv_camera_set_gain (viewer->camera, gain, NULL);
g_signal_handler_block (viewer->gain_spin_button, viewer->gain_spin_changed);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->gain_spin_button), gain);
g_signal_handler_unblock (viewer->gain_spin_button, viewer->gain_spin_changed);
}
static void
black_level_scale_cb (GtkRange *range, ArvViewer *viewer)
{
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_black_level_toggle), FALSE);
arv_camera_set_black_level (viewer->camera, gtk_range_get_value (range), NULL);
g_signal_handler_block (viewer->black_level_spin_button, viewer->black_level_spin_changed);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->black_level_spin_button), gtk_range_get_value (range));
g_signal_handler_unblock (viewer->black_level_spin_button, viewer->black_level_spin_changed);
}
static gboolean
update_exposure_cb (void *data)
{
ArvViewer *viewer = data;
double exposure;
double scaled_exposure;
exposure = arv_camera_get_exposure_time (viewer->camera, NULL);
scaled_exposure = viewer->exposure_time_representation == ARV_GC_REPRESENTATION_LOGARITHMIC ?
arv_viewer_value_to_log (exposure, viewer->exposure_min, viewer->exposure_max) : exposure;
g_signal_handler_block (viewer->exposure_hscale, viewer->exposure_hscale_changed);
g_signal_handler_block (viewer->exposure_spin_button, viewer->exposure_spin_changed);
gtk_range_set_value (GTK_RANGE (viewer->exposure_hscale), scaled_exposure);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->exposure_spin_button), exposure);
g_signal_handler_unblock (viewer->exposure_spin_button, viewer->exposure_spin_changed);
g_signal_handler_unblock (viewer->exposure_hscale, viewer->exposure_hscale_changed);
return TRUE;
}
static void
update_exposure_ui (ArvViewer *viewer, gboolean is_auto)
{
update_exposure_cb (viewer);
if (viewer->exposure_update_event > 0) {
g_source_remove (viewer->exposure_update_event);
viewer->exposure_update_event = 0;
}
if (is_auto)
viewer->exposure_update_event = g_timeout_add_seconds (1, update_exposure_cb, viewer);
}
static void
auto_exposure_cb (GtkToggleButton *toggle, ArvViewer *viewer)
{
gboolean is_auto;
is_auto = gtk_toggle_button_get_active (toggle);
arv_camera_set_exposure_time_auto (viewer->camera, is_auto ? ARV_AUTO_CONTINUOUS : ARV_AUTO_OFF, NULL);
update_exposure_ui (viewer, is_auto);
}
static gboolean
update_gain_cb (void *data)
{
ArvViewer *viewer = data;
double gain;
double scaled_gain;
gain = arv_camera_get_gain (viewer->camera, NULL);
scaled_gain = viewer->gain_representation == ARV_GC_REPRESENTATION_LOGARITHMIC ?
arv_viewer_value_to_log (gain, viewer->gain_min, viewer->gain_max) : gain;
g_signal_handler_block (viewer->gain_hscale, viewer->gain_hscale_changed);
g_signal_handler_block (viewer->gain_spin_button, viewer->gain_spin_changed);
gtk_range_set_value (GTK_RANGE (viewer->gain_hscale), scaled_gain);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->gain_spin_button), gain);
g_signal_handler_unblock (viewer->gain_spin_button, viewer->gain_spin_changed);
g_signal_handler_unblock (viewer->gain_hscale, viewer->gain_hscale_changed);
return TRUE;
}
static void
update_gain_ui (ArvViewer *viewer, gboolean is_auto)
{
update_gain_cb (viewer);
if (viewer->gain_update_event > 0) {
g_source_remove (viewer->gain_update_event);
viewer->gain_update_event = 0;
}
if (is_auto)
viewer->gain_update_event = g_timeout_add_seconds (1, update_gain_cb, viewer);
}
static void
auto_gain_cb (GtkToggleButton *toggle, ArvViewer *viewer)
{
gboolean is_auto;
is_auto = gtk_toggle_button_get_active (toggle);
arv_camera_set_gain_auto (viewer->camera, is_auto ? ARV_AUTO_CONTINUOUS : ARV_AUTO_OFF, NULL);
update_gain_ui (viewer, is_auto);
}
static gboolean
update_black_level_cb (void *data)
{
ArvViewer *viewer = data;
double black_level;
black_level = arv_camera_get_black_level (viewer->camera, NULL);
g_signal_handler_block (viewer->black_level_hscale, viewer->black_level_hscale_changed);
g_signal_handler_block (viewer->black_level_spin_button, viewer->black_level_spin_changed);
gtk_range_set_value (GTK_RANGE (viewer->black_level_hscale), black_level);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->black_level_spin_button), black_level);
g_signal_handler_unblock (viewer->black_level_spin_button, viewer->black_level_spin_changed);
g_signal_handler_unblock (viewer->black_level_hscale, viewer->black_level_hscale_changed);
return TRUE;
}
static void
update_black_level_ui (ArvViewer *viewer, gboolean is_auto)
{
update_black_level_cb (viewer);
if (viewer->black_level_update_event > 0) {
g_source_remove (viewer->black_level_update_event);
viewer->black_level_update_event = 0;
}
if (is_auto)
viewer->black_level_update_event = g_timeout_add_seconds (1, update_black_level_cb, viewer);
}
static void
auto_black_level_cb (GtkToggleButton *toggle, ArvViewer *viewer)
{
gboolean is_auto;
is_auto = gtk_toggle_button_get_active (toggle);
arv_camera_set_black_level_auto (viewer->camera, is_auto ? ARV_AUTO_CONTINUOUS : ARV_AUTO_OFF, NULL);
update_black_level_ui (viewer, is_auto);
}
static void
set_camera_widgets(ArvViewer *viewer)
{
g_autofree char *string = NULL;
gboolean is_frame_rate_available;
gboolean is_gain_available;
gboolean auto_gain;
double black_level_min, black_level_max;
gboolean is_black_level_available;
gboolean auto_black_level;
gboolean is_exposure_available;
gboolean auto_exposure;
g_signal_handler_block (viewer->gain_hscale, viewer->gain_hscale_changed);
g_signal_handler_block (viewer->gain_spin_button, viewer->gain_spin_changed);
g_signal_handler_block (viewer->black_level_hscale, viewer->black_level_hscale_changed);
g_signal_handler_block (viewer->black_level_spin_button, viewer->black_level_spin_changed);
g_signal_handler_block (viewer->exposure_hscale, viewer->exposure_hscale_changed);
g_signal_handler_block (viewer->exposure_spin_button, viewer->exposure_spin_changed);
arv_camera_get_exposure_time_bounds (viewer->camera, &viewer->exposure_min, &viewer->exposure_max, NULL);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->exposure_spin_button),
viewer->exposure_min, viewer->exposure_max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->exposure_spin_button), 200.0, 1000.0);
arv_camera_get_gain_bounds (viewer->camera, &viewer->gain_min, &viewer->gain_max, NULL);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->gain_spin_button), viewer->gain_min, viewer->gain_max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->gain_spin_button), 1, 10);
arv_camera_get_black_level_bounds (viewer->camera, &black_level_min, &black_level_max, NULL);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->black_level_spin_button), black_level_min, black_level_max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->black_level_spin_button), 1, 10);
gtk_range_set_range (GTK_RANGE (viewer->black_level_hscale), black_level_min, black_level_max);
is_frame_rate_available = arv_camera_is_frame_rate_available (viewer->camera, NULL);
gtk_widget_set_sensitive (viewer->frame_rate_entry, is_frame_rate_available);
string = g_strdup_printf ("%g", arv_camera_get_frame_rate (viewer->camera, NULL));
gtk_entry_set_text (GTK_ENTRY (viewer->frame_rate_entry), string);
is_gain_available = arv_camera_is_gain_available (viewer->camera, NULL);
if (is_gain_available) {
viewer->gain_representation = arv_camera_get_gain_representation(viewer->camera);
if (viewer->gain_representation == ARV_GC_REPRESENTATION_UNDEFINED) {
if (viewer->gain_min < viewer->gain_max)
viewer->gain_representation = ARV_GC_REPRESENTATION_LINEAR;
else
viewer->gain_representation = ARV_GC_REPRESENTATION_PURE_NUMBER;
}
switch(viewer->gain_representation){
case ARV_GC_REPRESENTATION_UNDEFINED:
case ARV_GC_REPRESENTATION_LINEAR:
gtk_range_set_range (GTK_RANGE (viewer->gain_hscale),
viewer->gain_min, viewer->gain_max);
gtk_widget_set_sensitive (viewer->gain_hscale, is_gain_available);
gtk_widget_set_sensitive (viewer->gain_spin_button, is_gain_available);
break;
case ARV_GC_REPRESENTATION_LOGARITHMIC:
gtk_range_set_range (GTK_RANGE (viewer->gain_hscale), 0.0, 1.0);
gtk_widget_set_sensitive (viewer->gain_hscale, is_gain_available);
gtk_widget_set_sensitive (viewer->gain_spin_button, is_gain_available);
break;
case ARV_GC_REPRESENTATION_PURE_NUMBER:
gtk_widget_set_sensitive (viewer->gain_hscale, FALSE);
gtk_widget_set_sensitive (viewer->gain_spin_button, is_gain_available);
break;
default:
gtk_widget_set_sensitive (viewer->gain_hscale, FALSE);
gtk_widget_set_sensitive (viewer->gain_spin_button, FALSE);
}
} else {
gtk_widget_set_sensitive (viewer->gain_hscale, FALSE);
gtk_widget_set_sensitive (viewer->gain_spin_button, FALSE);
}
is_black_level_available = arv_camera_is_black_level_available (viewer->camera, NULL);
gtk_widget_set_sensitive (viewer->black_level_hscale, is_black_level_available);
gtk_widget_set_sensitive (viewer->black_level_spin_button, is_black_level_available);
is_exposure_available = arv_camera_is_exposure_time_available (viewer->camera, NULL);
if (is_exposure_available){
if (viewer->exposure_min < viewer->exposure_max)
if (viewer->exposure_min > 0)
viewer->exposure_time_representation = ARV_GC_REPRESENTATION_LOGARITHMIC;
else
viewer->exposure_time_representation = ARV_GC_REPRESENTATION_LINEAR;
else
viewer->exposure_time_representation = ARV_GC_REPRESENTATION_PURE_NUMBER;
switch (viewer->exposure_time_representation) {
case ARV_GC_REPRESENTATION_UNDEFINED:
case ARV_GC_REPRESENTATION_LINEAR:
gtk_range_set_range (GTK_RANGE (viewer->exposure_hscale),
viewer->exposure_min, viewer->exposure_max);
break;
case ARV_GC_REPRESENTATION_LOGARITHMIC:
gtk_range_set_range (GTK_RANGE (viewer->exposure_hscale), 0.0, 1.0);
gtk_widget_set_sensitive (viewer->exposure_hscale, TRUE);
gtk_widget_set_sensitive (viewer->exposure_spin_button, TRUE);
break;
case ARV_GC_REPRESENTATION_PURE_NUMBER:
gtk_widget_set_sensitive (viewer->exposure_hscale, FALSE);
gtk_widget_set_sensitive (viewer->exposure_spin_button, TRUE);
break;
default:
gtk_widget_set_sensitive (viewer->exposure_hscale, FALSE);
gtk_widget_set_sensitive (viewer->exposure_spin_button, FALSE);
}
}else{
gtk_widget_set_sensitive (viewer->exposure_hscale, FALSE);
gtk_widget_set_sensitive (viewer->exposure_spin_button, FALSE);
}
g_signal_handler_unblock (viewer->gain_hscale, viewer->gain_hscale_changed);
g_signal_handler_unblock (viewer->gain_spin_button, viewer->gain_spin_changed);
g_signal_handler_unblock (viewer->black_level_hscale, viewer->black_level_hscale_changed);
g_signal_handler_unblock (viewer->black_level_spin_button, viewer->black_level_spin_changed);
g_signal_handler_unblock (viewer->exposure_hscale, viewer->exposure_hscale_changed);
g_signal_handler_unblock (viewer->exposure_spin_button, viewer->exposure_spin_changed);
auto_gain = arv_camera_get_gain_auto (viewer->camera, NULL) != ARV_AUTO_OFF;
auto_black_level = arv_camera_get_black_level_auto (viewer->camera, NULL) != ARV_AUTO_OFF;
auto_exposure = arv_camera_get_exposure_time_auto (viewer->camera, NULL) != ARV_AUTO_OFF;
update_gain_ui (viewer, auto_gain);
update_black_level_ui (viewer, auto_black_level);
update_exposure_ui (viewer, auto_exposure);
g_signal_handler_block (viewer->auto_gain_toggle, viewer->auto_gain_clicked);
g_signal_handler_block (viewer->auto_black_level_toggle, viewer->auto_black_level_clicked);
g_signal_handler_block (viewer->auto_exposure_toggle, viewer->auto_exposure_clicked);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_gain_toggle), auto_gain);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_black_level_toggle), auto_black_level);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_exposure_toggle), auto_exposure);
gtk_widget_set_sensitive (viewer->auto_gain_toggle,
arv_camera_is_gain_auto_available (viewer->camera, NULL));
gtk_widget_set_sensitive (viewer->auto_black_level_toggle,
arv_camera_is_black_level_auto_available (viewer->camera, NULL));
gtk_widget_set_sensitive (viewer->auto_exposure_toggle,
arv_camera_is_exposure_auto_available (viewer->camera, NULL));
g_signal_handler_unblock (viewer->auto_gain_toggle, viewer->auto_gain_clicked);
g_signal_handler_unblock (viewer->auto_black_level_toggle, viewer->auto_black_level_clicked);
g_signal_handler_unblock (viewer->auto_exposure_toggle, viewer->auto_exposure_clicked);
}
static gboolean
_save_gst_sample_to_file (GstSample *sample, const char *path, const char *mime_type, GError **error)
{
GstSample *converted;
GstCaps *caps;
GstBuffer *gst_buffer;
gboolean success = FALSE;
g_return_val_if_fail (GST_IS_SAMPLE (sample), FALSE);
caps = gst_caps_from_string (mime_type);
converted = gst_video_convert_sample (sample, caps, GST_CLOCK_TIME_NONE, NULL);
gst_caps_unref (caps);
gst_buffer = gst_sample_get_buffer (converted);
if (gst_buffer) {
GstMapInfo map;
gst_buffer_map (gst_buffer, &map, GST_MAP_READ);
success = g_file_set_contents (path, (void *) map.data, map.size, error);
gst_buffer_unmap (gst_buffer, &map);
} else
gst_sample_unref (converted);
return success;
}
static void
snapshot_cb (GtkButton *button, ArvViewer *viewer)
{
GtkFileFilter *filter;
GtkFileFilter *filter_all;
GtkWidget *dialog;
GstSample *sample = NULL;
ArvBuffer *buffer = NULL;
char *path;
char *filename;
GDateTime *date;
char *date_string;
int width, height;
const char *data;
const char *pixel_format;
size_t size;
gint result;
if (GST_IS_ELEMENT (viewer->videosink))
sample = gst_base_sink_get_last_sample (GST_BASE_SINK (viewer->videosink));
if (ARV_IS_BUFFER (viewer->last_buffer))
buffer = g_object_ref (viewer->last_buffer);
if (!ARV_IS_BUFFER (buffer) && !GST_IS_SAMPLE (sample)) {
arv_viewer_show_notification (viewer, "No buffer available", NULL);
return;
}
g_return_if_fail (ARV_IS_CAMERA (viewer->camera));
pixel_format = arv_camera_get_pixel_format_as_string (viewer->camera, NULL);
arv_buffer_get_image_region (buffer, NULL, NULL, &width, &height);
data = arv_buffer_get_image_data (buffer, &size);
date = g_date_time_new_now_local ();
date_string = g_date_time_format (date, "%Y-%m-%d-%H:%M:%S");
filename = g_strdup_printf ("%s-%s-%d-%d-%s-%s.raw",
arv_camera_get_vendor_name (viewer->camera, NULL),
arv_camera_get_device_serial_number (viewer->camera, NULL),
width,
height,
pixel_format != NULL ? pixel_format : "Unknown",
date_string);
g_free (date_string);
g_date_time_unref (date);
path = g_build_filename (g_get_user_special_dir (G_USER_DIRECTORY_PICTURES), filename, NULL);
dialog = gtk_file_chooser_dialog_new ("Save Snapshot", GTK_WINDOW (viewer->main_window),
GTK_FILE_CHOOSER_ACTION_SAVE,
"_Cancel",
GTK_RESPONSE_CANCEL,
"_Save",
GTK_RESPONSE_ACCEPT,
NULL);
gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE);
gtk_file_chooser_set_filename (GTK_FILE_CHOOSER (dialog), path);
gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (dialog), filename);
filter_all = gtk_file_filter_new ();
gtk_file_filter_set_name (filter_all, "Supported image formats");
if (GST_IS_SAMPLE (sample)) {
filter = gtk_file_filter_new ();
gtk_file_filter_add_mime_type (filter, "image/png");
gtk_file_filter_add_mime_type (filter_all, "image/png");
gtk_file_filter_set_name (filter, "PNG (*.png)");
gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
filter = gtk_file_filter_new ();
gtk_file_filter_add_mime_type (filter, "image/jpeg");
gtk_file_filter_add_mime_type (filter_all, "image/jpeg");
gtk_file_filter_set_name (filter, "JPEG (*.jpeg)");
gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
}
if (ARV_IS_BUFFER (buffer)) {
filter = gtk_file_filter_new ();
gtk_file_filter_add_pattern (filter, "*.raw");
gtk_file_filter_add_pattern (filter_all, "*.raw");
gtk_file_filter_set_name (filter, "Raw images (*.raw)");
gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter);
}
gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog), filter_all);
gtk_file_chooser_set_filter (GTK_FILE_CHOOSER (dialog), filter_all);
g_free (path);
g_free (filename);
result = gtk_dialog_run (GTK_DIALOG (dialog));
if (result == GTK_RESPONSE_ACCEPT) {
g_autoptr (GError) error = NULL;
g_autofree char * content_type = NULL;
gboolean success = FALSE;