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arvviewer.c
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/* Aravis - Digital camera library
*
* Copyright © 2009-2016 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 <[email protected]>
*/
#include <gtk/gtk.h>
#include <gst/gst.h>
#include <gst/app/gstappsrc.h>
#include <gst/video/videooverlay.h>
#include <gdk/gdkx.h>
#include <arv.h>
#include <math.h>
#include <memory.h>
#include <libnotify/notify.h>
static gboolean has_autovideo_sink = FALSE;
static gboolean has_gtksink = FALSE;
static gboolean has_gtkglsink = 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",
"bayer2rgb"
};
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);
}
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;
}
typedef struct {
GtkApplication parent_instance;
ArvCamera *camera;
char *camera_name;
ArvStream *stream;
ArvBuffer *last_buffer;
GstElement *pipeline;
GstElement *appsrc;
GstElement *transform;
guint rotation;
gboolean flip_vertical;
gboolean flip_horizontal;
double exposure_min, exposure_max;
NotifyNotification *notification;
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 *pixel_format_combo;
GtkWidget *camera_x;
GtkWidget *camera_y;
GtkWidget *camera_binning_x;
GtkWidget *camera_binning_y;
GtkWidget *camera_width;
GtkWidget *camera_height;
GtkWidget *video_frame;
GtkWidget *trigger_combo_box;
GtkWidget *frame_rate_entry;
GtkWidget *exposure_spin_button;
GtkWidget *gain_spin_button;
GtkWidget *exposure_hscale;
GtkWidget *gain_hscale;
GtkWidget *auto_exposure_toggle;
GtkWidget *auto_gain_toggle;
GtkWidget *acquisition_button;
gulong camera_selected;
gulong exposure_spin_changed;
gulong gain_spin_changed;
gulong exposure_hscale_changed;
gulong gain_hscale_changed;
gulong auto_gain_clicked;
gulong auto_exposure_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 pixel_format_changed;
guint gain_update_event;
guint exposure_update_event;
gboolean auto_socket_buffer;
gboolean packet_resend;
guint packet_timeout;
guint frame_retention;
gulong video_window_xid;
} ArvViewer;
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 packet_timeout,
guint frame_retention)
{
g_return_if_fail (viewer != NULL);
viewer->auto_socket_buffer = auto_socket_buffer;
viewer->packet_resend = packet_resend;
viewer->packet_timeout = packet_timeout;
viewer->frame_retention = frame_retention;
}
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 GstBuffer *
arv_to_gst_buffer (ArvBuffer *arv_buffer)
{
GstBuffer *buffer;
int arv_row_stride;
int width, height;
char *buffer_data;
size_t buffer_size;
buffer_data = (char *) arv_buffer_get_data (arv_buffer, &buffer_size);
arv_buffer_get_image_region (arv_buffer, NULL, NULL, &width, &height);
arv_row_stride = width * ARV_PIXEL_FORMAT_BIT_PER_PIXEL (arv_buffer_get_image_pixel_format (arv_buffer)) / 8;
/* Gstreamer requires row stride to be a multiple of 4 */
if ((arv_row_stride & 0x3) != 0) {
int gst_row_stride;
size_t size;
void *data;
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);
buffer = gst_buffer_new_wrapped (data, size);
} else {
buffer = gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY,
buffer_data, buffer_size,
0, buffer_size, NULL, NULL);
}
return buffer;
}
static void
new_buffer_cb (ArvStream *stream, ArvViewer *viewer)
{
ArvBuffer *arv_buffer;
arv_buffer = arv_stream_pop_buffer (stream);
if (arv_buffer == NULL)
return;
if (arv_buffer_get_status (arv_buffer) == ARV_BUFFER_STATUS_SUCCESS)
gst_app_src_push_buffer (GST_APP_SRC (viewer->appsrc), arv_to_gst_buffer (arv_buffer));
if (viewer->last_buffer != NULL)
arv_stream_push_buffer (stream, viewer->last_buffer);
viewer->last_buffer = arv_buffer;
}
static void
frame_rate_entry_cb (GtkEntry *entry, ArvViewer *viewer)
{
char *text;
double frame_rate;
text = (char *) gtk_entry_get_text (entry);
arv_camera_set_frame_rate (viewer->camera, g_strtod (text, NULL));
frame_rate = arv_camera_get_frame_rate (viewer->camera);
text = g_strdup_printf ("%g", frame_rate);
gtk_entry_set_text (entry, text);
g_free (text);
}
static gboolean
frame_rate_entry_focus_cb (GtkEntry *entry, GdkEventFocus *event,
ArvViewer *viewer)
{
frame_rate_entry_cb (entry, viewer);
return FALSE;
}
static void
exposure_spin_cb (GtkSpinButton *spin_button, ArvViewer *viewer)
{
double exposure = gtk_spin_button_get_value (spin_button);
double log_exposure = arv_viewer_value_to_log (exposure, viewer->exposure_min, viewer->exposure_max);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_exposure_toggle), FALSE);
arv_camera_set_exposure_time (viewer->camera, exposure);
g_signal_handler_block (viewer->exposure_hscale, viewer->exposure_hscale_changed);
gtk_range_set_value (GTK_RANGE (viewer->exposure_hscale), log_exposure);
g_signal_handler_unblock (viewer->exposure_hscale, viewer->exposure_hscale_changed);
}
static void
gain_spin_cb (GtkSpinButton *spin_button, ArvViewer *viewer)
{
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));
g_signal_handler_block (viewer->gain_hscale, viewer->gain_hscale_changed);
gtk_range_set_value (GTK_RANGE (viewer->gain_hscale), gtk_spin_button_get_value (spin_button));
g_signal_handler_unblock (viewer->gain_hscale, viewer->gain_hscale_changed);
}
static void
exposure_scale_cb (GtkRange *range, ArvViewer *viewer)
{
double log_exposure = gtk_range_get_value (range);
double exposure = arv_viewer_value_from_log (log_exposure, viewer->exposure_min, viewer->exposure_max);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_exposure_toggle), FALSE);
arv_camera_set_exposure_time (viewer->camera, exposure);
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)
{
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (viewer->auto_gain_toggle), FALSE);
arv_camera_set_gain (viewer->camera, gtk_range_get_value (range));
g_signal_handler_block (viewer->gain_spin_button, viewer->gain_spin_changed);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->gain_spin_button), gtk_range_get_value (range));
g_signal_handler_unblock (viewer->gain_spin_button, viewer->gain_spin_changed);
}
gboolean
update_exposure_cb (void *data)
{
ArvViewer *viewer = data;
double exposure;
double log_exposure;
exposure = arv_camera_get_exposure_time (viewer->camera);
log_exposure = arv_viewer_value_to_log (exposure, viewer->exposure_min, viewer->exposure_max);
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), log_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);
update_exposure_ui (viewer, is_auto);
}
static gboolean
update_gain_cb (void *data)
{
ArvViewer *viewer = data;
double gain;
gain = arv_camera_get_gain (viewer->camera);
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), 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);
}
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);
update_gain_ui (viewer, is_auto);
}
void
snapshot_cb (GtkButton *button, ArvViewer *viewer)
{
GFile *file;
char *path;
char *filename;
GDateTime *date;
char *date_string;
int width, height;
const char *data;
const char *pixel_format;
size_t size;
g_return_if_fail (ARV_IS_CAMERA (viewer->camera));
g_return_if_fail (ARV_IS_BUFFER (viewer->last_buffer));
pixel_format = arv_camera_get_pixel_format_as_string (viewer->camera);
arv_buffer_get_image_region (viewer->last_buffer, NULL, NULL, &width, &height);
data = arv_buffer_get_data (viewer->last_buffer, &size);
path = g_build_filename (g_get_user_special_dir (G_USER_DIRECTORY_PICTURES),
"Aravis", NULL);
file = g_file_new_for_path (path);
g_free (path);
g_file_make_directory (file, NULL, NULL);
g_object_unref (file);
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),
arv_camera_get_device_id (viewer->camera),
width,
height,
pixel_format != NULL ? pixel_format : "Unknown",
date_string);
path = g_build_filename (g_get_user_special_dir (G_USER_DIRECTORY_PICTURES),
"Aravis", filename, NULL);
g_file_set_contents (path, data, size, NULL);
if (viewer->notification) {
notify_notification_update (viewer->notification,
"Snapshot saved to Image folder",
path,
"gtk-save");
notify_notification_show (viewer->notification, NULL);
}
g_free (path);
g_free (filename);
g_free (date_string);
g_date_time_unref (date);
}
static void
update_transform (ArvViewer *viewer)
{
static const gint methods[4][4] = {
{0, 1, 2, 3},
{4, 6, 5, 7},
{5, 7, 4, 6},
{2, 3, 0, 1}
};
int index = (viewer->flip_horizontal ? 1 : 0) + (viewer->flip_vertical ? 2 : 0);
g_object_set (viewer->transform, "method", methods[index][viewer->rotation % 4], NULL);
}
static void
rotate_cw_cb (GtkButton *button, ArvViewer *viewer)
{
viewer->rotation = (viewer->rotation + 1) % 4;
update_transform (viewer);
}
static void
flip_horizontal_cb (GtkToggleButton *toggle, ArvViewer *viewer)
{
viewer->flip_horizontal = gtk_toggle_button_get_active (toggle);
update_transform (viewer);
}
static void
flip_vertical_cb (GtkToggleButton *toggle, ArvViewer *viewer)
{
viewer->flip_vertical = gtk_toggle_button_get_active (toggle);
update_transform (viewer);
}
static void
stream_cb (void *user_data, ArvStreamCallbackType type, ArvBuffer *buffer)
{
if (type == ARV_STREAM_CALLBACK_TYPE_INIT) {
if (!arv_make_thread_realtime (10) &&
!arv_make_thread_high_priority (-10))
g_warning ("Failed to make stream thread high priority");
}
}
static void
update_camera_region (ArvViewer *viewer)
{
gint x, y, width, height;
gint dx, dy;
gint min, max;
g_signal_handler_block (viewer->camera_x, viewer->camera_x_changed);
g_signal_handler_block (viewer->camera_y, viewer->camera_y_changed);
g_signal_handler_block (viewer->camera_width, viewer->camera_width_changed);
g_signal_handler_block (viewer->camera_height, viewer->camera_height_changed);
g_signal_handler_block (viewer->camera_binning_x, viewer->camera_binning_x_changed);
g_signal_handler_block (viewer->camera_binning_y, viewer->camera_binning_y_changed);
arv_camera_get_region (viewer->camera, &x, &y, &width, &height);
arv_camera_get_binning (viewer->camera, &dx, &dy);
arv_camera_get_x_binning_bounds (viewer->camera, &min, &max);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->camera_binning_x), min, max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->camera_binning_x), 1, 10);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->camera_binning_x), dx);
arv_camera_get_y_binning_bounds (viewer->camera, &min, &max);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->camera_binning_y), min, max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->camera_binning_y), 1, 10);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->camera_binning_y), dy);
arv_camera_get_x_offset_bounds (viewer->camera, &min, &max);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->camera_x), min, max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->camera_x), 1, 10);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->camera_x), x);
arv_camera_get_y_offset_bounds (viewer->camera, &min, &max);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->camera_y), min, max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->camera_y), 1, 10);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->camera_y), y);
arv_camera_get_width_bounds (viewer->camera, &min, &max);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->camera_width), min, max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->camera_width), 1, 10);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->camera_width), width);
arv_camera_get_height_bounds (viewer->camera, &min, &max);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->camera_height), min, max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->camera_height), 1, 10);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (viewer->camera_height), height);
g_signal_handler_unblock (viewer->camera_x, viewer->camera_x_changed);
g_signal_handler_unblock (viewer->camera_y, viewer->camera_y_changed);
g_signal_handler_unblock (viewer->camera_width, viewer->camera_width_changed);
g_signal_handler_unblock (viewer->camera_height, viewer->camera_height_changed);
g_signal_handler_unblock (viewer->camera_binning_x, viewer->camera_binning_x_changed);
g_signal_handler_unblock (viewer->camera_binning_y, viewer->camera_binning_y_changed);
}
void
camera_region_cb (GtkSpinButton *spin_button, ArvViewer *viewer)
{
int x = gtk_spin_button_get_value (GTK_SPIN_BUTTON (viewer->camera_x));
int y = gtk_spin_button_get_value (GTK_SPIN_BUTTON (viewer->camera_y));
int width = gtk_spin_button_get_value (GTK_SPIN_BUTTON (viewer->camera_width));
int height = gtk_spin_button_get_value (GTK_SPIN_BUTTON (viewer->camera_height));
arv_camera_set_region (viewer->camera, x, y, width, height);
update_camera_region (viewer);
}
void
camera_binning_cb (GtkSpinButton *spin_button, ArvViewer *viewer)
{
int dx = gtk_spin_button_get_value (GTK_SPIN_BUTTON (viewer->camera_binning_x));
int dy = gtk_spin_button_get_value (GTK_SPIN_BUTTON (viewer->camera_binning_y));
arv_camera_set_binning (viewer->camera, dx, dy);
update_camera_region (viewer);
}
void
pixel_format_combo_cb (GtkComboBoxText *combo, ArvViewer *viewer)
{
char *pixel_format;
pixel_format = gtk_combo_box_text_get_active_text (combo);
arv_camera_set_pixel_format_from_string (viewer->camera, pixel_format);
g_free (pixel_format);
}
void
update_device_list_cb (GtkToolButton *button, ArvViewer *viewer)
{
GtkListStore *list_store;
GtkTreeIter iter;
unsigned int n_devices;
unsigned int i;
gtk_widget_set_sensitive (viewer->video_mode_button, FALSE);
gtk_widget_set_sensitive (viewer->camera_parameters, FALSE);
g_signal_handler_block (gtk_tree_view_get_selection (GTK_TREE_VIEW (viewer->camera_tree)), viewer->camera_selected);
list_store = GTK_LIST_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (viewer->camera_tree)));
gtk_list_store_clear (list_store);
arv_update_device_list ();
n_devices = arv_get_n_devices ();
for (i = 0; i < n_devices; i++) {
gtk_list_store_append (list_store, &iter);
gtk_list_store_set (list_store, &iter,
0, arv_get_device_id (i),
1, arv_get_device_protocol (i),
2, arv_get_device_vendor (i),
3, arv_get_device_model (i),
4, arv_get_device_serial_nbr (i),
-1);
}
g_signal_handler_unblock (gtk_tree_view_get_selection (GTK_TREE_VIEW (viewer->camera_tree)), viewer->camera_selected);
}
static void
remove_widget (GtkWidget *widget, gpointer data)
{
gtk_container_remove (data, widget);
g_object_unref (widget);
}
static void
stop_video (ArvViewer *viewer)
{
if (GST_IS_PIPELINE (viewer->pipeline))
gst_element_set_state (viewer->pipeline, GST_STATE_NULL);
if (ARV_IS_STREAM (viewer->stream))
arv_stream_set_emit_signals (viewer->stream, FALSE);
g_clear_object (&viewer->stream);
g_clear_object (&viewer->pipeline);
viewer->appsrc = NULL;
g_clear_object (&viewer->last_buffer);
if (ARV_IS_CAMERA (viewer->camera))
arv_camera_stop_acquisition (viewer->camera);
gtk_container_foreach (GTK_CONTAINER (viewer->video_frame), remove_widget, viewer->video_frame);
}
static GstBusSyncReply
bus_sync_handler (GstBus *bus, GstMessage *message, gpointer user_data)
{
ArvViewer *viewer = user_data;
if (!gst_is_video_overlay_prepare_window_handle_message(message))
return GST_BUS_PASS;
if (viewer->video_window_xid != 0) {
GstVideoOverlay *videooverlay;
videooverlay = GST_VIDEO_OVERLAY (GST_MESSAGE_SRC (message));
gst_video_overlay_set_window_handle (videooverlay, viewer->video_window_xid);
} else {
g_warning ("Should have obtained video_window_xid by now!");
}
gst_message_unref (message);
return GST_BUS_DROP;
}
static gboolean
start_video (ArvViewer *viewer)
{
GstElement *videoconvert;
GstElement *videosink;
GstCaps *caps;
ArvPixelFormat pixel_format;
double frame_rate;
double gain_min, gain_max;
unsigned payload;
unsigned i;
gint width, height;
char *string;
const char *caps_string;
gboolean auto_gain, auto_exposure;
gboolean is_frame_rate_available;
gboolean is_exposure_available;
gboolean is_exposure_auto_available;
gboolean is_gain_available;
gboolean is_gain_auto_available;
if (!ARV_IS_CAMERA (viewer->camera))
return FALSE;
stop_video (viewer);
viewer->rotation = 0;
viewer->stream = arv_camera_create_stream (viewer->camera, stream_cb, NULL);
if (viewer->stream == NULL) {
g_object_unref (viewer->camera);
viewer->camera = NULL;
return FALSE;
}
if (ARV_IS_GV_STREAM (viewer->stream)) {
if (viewer->auto_socket_buffer)
g_object_set (viewer->stream,
"socket-buffer", ARV_GV_STREAM_SOCKET_BUFFER_AUTO,
"socket-buffer-size", 0,
NULL);
if (!viewer->packet_resend)
g_object_set (viewer->stream,
"packet-resend", ARV_GV_STREAM_PACKET_RESEND_NEVER,
NULL);
g_object_set (viewer->stream,
"packet-timeout", (unsigned) viewer->packet_timeout * 1000,
"frame-retention", (unsigned) viewer->frame_retention * 1000,
NULL);
}
arv_stream_set_emit_signals (viewer->stream, TRUE);
payload = arv_camera_get_payload (viewer->camera);
for (i = 0; i < 50; i++)
arv_stream_push_buffer (viewer->stream, arv_buffer_new (payload, NULL));
arv_camera_get_region (viewer->camera, NULL, NULL, &width, &height);
pixel_format = arv_camera_get_pixel_format (viewer->camera);
arv_camera_get_exposure_time_bounds (viewer->camera, &viewer->exposure_min, &viewer->exposure_max);
arv_camera_get_gain_bounds (viewer->camera, &gain_min, &gain_max);
frame_rate = arv_camera_get_frame_rate (viewer->camera);
auto_gain = arv_camera_get_gain_auto (viewer->camera) != ARV_AUTO_OFF;
auto_exposure = arv_camera_get_gain_auto (viewer->camera) != ARV_AUTO_OFF;
is_frame_rate_available = arv_camera_is_frame_rate_available (viewer->camera);
is_exposure_available = arv_camera_is_exposure_time_available (viewer->camera);
is_exposure_auto_available = arv_camera_is_exposure_auto_available (viewer->camera);
is_gain_available = arv_camera_is_gain_available (viewer->camera);
is_gain_auto_available = arv_camera_is_gain_auto_available (viewer->camera);
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->exposure_hscale, viewer->exposure_hscale_changed);
g_signal_handler_block (viewer->exposure_spin_button, viewer->exposure_spin_changed);
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);
gtk_spin_button_set_range (GTK_SPIN_BUTTON (viewer->gain_spin_button), gain_min, gain_max);
gtk_spin_button_set_increments (GTK_SPIN_BUTTON (viewer->gain_spin_button), 1, 10);
gtk_range_set_range (GTK_RANGE (viewer->exposure_hscale), 0.0, 1.0);
gtk_range_set_range (GTK_RANGE (viewer->gain_hscale), gain_min, gain_max);
gtk_widget_set_sensitive (viewer->frame_rate_entry, is_frame_rate_available);
string = g_strdup_printf ("%g", frame_rate);
gtk_entry_set_text (GTK_ENTRY (viewer->frame_rate_entry), string);
g_free (string);
gtk_widget_set_sensitive (viewer->gain_hscale, is_gain_available);
gtk_widget_set_sensitive (viewer->gain_spin_button, is_gain_available);
gtk_widget_set_sensitive (viewer->exposure_hscale, is_exposure_available);
gtk_widget_set_sensitive (viewer->exposure_spin_button, is_exposure_available);
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->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) != ARV_AUTO_OFF;
auto_exposure = arv_camera_get_exposure_time_auto (viewer->camera) != ARV_AUTO_OFF;
update_gain_ui (viewer, auto_gain);
update_exposure_ui (viewer, auto_exposure);
g_signal_handler_block (viewer->auto_gain_toggle, viewer->auto_gain_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_exposure_toggle), auto_exposure);
gtk_widget_set_sensitive (viewer->auto_gain_toggle, is_gain_auto_available);
gtk_widget_set_sensitive (viewer->auto_exposure_toggle, is_exposure_auto_available);
g_signal_handler_unblock (viewer->auto_gain_toggle, viewer->auto_gain_clicked);
g_signal_handler_unblock (viewer->auto_exposure_toggle, viewer->auto_exposure_clicked);
caps_string = arv_pixel_format_to_gst_caps_string (pixel_format);
if (caps_string == NULL) {
g_message ("GStreamer cannot understand the camera pixel format: 0x%x!\n", (int) pixel_format);
stop_video (viewer);
return FALSE;
}
arv_camera_start_acquisition (viewer->camera);
viewer->pipeline = gst_pipeline_new ("pipeline");
viewer->appsrc = gst_element_factory_make ("appsrc", NULL);
videoconvert = gst_element_factory_make ("videoconvert", NULL);
viewer->transform = gst_element_factory_make ("videoflip", NULL);
gst_bin_add_many (GST_BIN (viewer->pipeline), viewer->appsrc, videoconvert, viewer->transform, NULL);
if (g_str_has_prefix (caps_string, "video/x-bayer")) {
GstElement *bayer2rgb;
bayer2rgb = gst_element_factory_make ("bayer2rgb", NULL);
gst_bin_add (GST_BIN (viewer->pipeline), bayer2rgb);
gst_element_link_many (viewer->appsrc, bayer2rgb, videoconvert, viewer->transform, NULL);
} else {
gst_element_link_many (viewer->appsrc, videoconvert, viewer->transform, NULL);
}
if (has_gtksink || has_gtkglsink) {
GtkWidget *video_widget;
videosink = gst_element_factory_make ("gtkglsink", NULL);
if (GST_IS_ELEMENT (videosink)) {
GstElement *glupload;
glupload = gst_element_factory_make ("glupload", NULL);
gst_bin_add_many (GST_BIN (viewer->pipeline), glupload, videosink, NULL);
gst_element_link_many (viewer->transform, glupload, videosink, NULL);
} else {
videosink = gst_element_factory_make ("gtksink", NULL);
gst_element_link_many (viewer->transform, videosink, NULL);
}
g_object_get (videosink, "widget", &video_widget, NULL);
gtk_container_add (GTK_CONTAINER (viewer->video_frame), video_widget);
gtk_widget_show (video_widget);
g_object_set(G_OBJECT (video_widget), "force-aspect-ratio", TRUE, NULL);
gtk_widget_set_size_request (video_widget, 640, 480);
} else {
videosink = gst_element_factory_make ("autovideosink", NULL);
gst_bin_add (GST_BIN (viewer->pipeline), videosink);
gst_element_link_many (viewer->transform, videosink, NULL);
}
g_object_set(G_OBJECT (videosink), "sync", FALSE, NULL);
caps = gst_caps_from_string (caps_string);
gst_caps_set_simple (caps,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
"framerate", GST_TYPE_FRACTION, 0, 1,
NULL);
gst_app_src_set_caps (GST_APP_SRC (viewer->appsrc), caps);
gst_caps_unref (caps);
g_object_set(G_OBJECT (viewer->appsrc), "format", GST_FORMAT_TIME, "is-live", TRUE, "do-timestamp", TRUE, NULL);
if (!has_gtkglsink && !has_gtksink) {
GstBus *bus;
bus = gst_pipeline_get_bus (GST_PIPELINE (viewer->pipeline));
gst_bus_set_sync_handler (bus, (GstBusSyncHandler) bus_sync_handler, viewer, NULL);
gst_object_unref (bus);
}
gst_element_set_state (viewer->pipeline, GST_STATE_PLAYING);
g_signal_connect (viewer->stream, "new-buffer", G_CALLBACK (new_buffer_cb), viewer);
return TRUE;
}
static gboolean
select_camera_list_mode (gpointer user_data)
{
ArvViewer *viewer = user_data;
select_mode (viewer, ARV_VIEWER_MODE_CAMERA_LIST);
update_device_list_cb (GTK_TOOL_BUTTON (viewer->refresh_button), viewer);
return FALSE;
}
static void
control_lost_cb (ArvCamera *camera, ArvViewer *viewer)
{
g_main_context_invoke (NULL, select_camera_list_mode, viewer);
}
static void
stop_camera (ArvViewer *viewer)
{
gtk_widget_set_sensitive (viewer->camera_parameters, FALSE);
gtk_widget_set_sensitive (viewer->video_mode_button, FALSE);
stop_video (viewer);
g_clear_object (&viewer->camera);
g_clear_pointer (&viewer->camera_name, g_free);
}
static gboolean
start_camera (ArvViewer *viewer, const char *camera_id)
{
GtkTreeIter iter;
GtkListStore *list_store;
gint64 *pixel_formats;
const char *pixel_format_string;
const char **pixel_format_strings;
guint i, n_pixel_formats, n_pixel_format_strings, n_valid_formats;
gboolean binning_available;
stop_camera (viewer);
viewer->camera = arv_camera_new (camera_id);
if (!ARV_IS_CAMERA (viewer->camera))
return FALSE;
viewer->camera_name = g_strdup (camera_id);
gtk_widget_set_sensitive (viewer->camera_parameters, TRUE);
arv_camera_set_chunk_mode (viewer->camera, FALSE);
update_camera_region (viewer);
g_signal_handler_block (viewer->pixel_format_combo, viewer->pixel_format_changed);
list_store = GTK_LIST_STORE (gtk_combo_box_get_model (GTK_COMBO_BOX (viewer->pixel_format_combo)));
gtk_list_store_clear (list_store);
n_valid_formats = 0;
pixel_format_strings = arv_camera_get_available_pixel_formats_as_strings (viewer->camera, &n_pixel_format_strings);
pixel_formats = arv_camera_get_available_pixel_formats (viewer->camera, &n_pixel_formats);
g_assert (n_pixel_formats == n_pixel_format_strings);
pixel_format_string = arv_camera_get_pixel_format_as_string (viewer->camera);
for (i = 0; i < n_pixel_formats; i++) {
if (arv_pixel_format_to_gst_caps_string (pixel_formats[i]) != NULL) {
gtk_list_store_append (list_store, &iter);
gtk_list_store_set (list_store, &iter, 0, pixel_format_strings[i], -1);
if (g_strcmp0 (pixel_format_strings[i], pixel_format_string) == 0)
gtk_combo_box_set_active (GTK_COMBO_BOX (viewer->pixel_format_combo), n_valid_formats);
n_valid_formats++;
}
}
g_free (pixel_formats);