| /* |
| * GStreamer |
| * Copyright (C) 2008-2009 Julien Isorce <julien.isorce@gmail.com> |
| * Copyright (C) 2014-2015 Jan Schmidt <jan@centricular.com> |
| * |
| * 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., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <string.h> |
| |
| #include <gdk/gdk.h> |
| #if defined (GDK_WINDOWING_X11) |
| #include <X11/Xlib.h> |
| #endif |
| |
| #include <gst/gst.h> |
| #include <gtk/gtk.h> |
| #include <gst/video/video-info.h> |
| |
| #include "../gstgtk.h" |
| #include "mviewwidget.h" |
| |
| /* Until playbin properties support dynamic changes, |
| * use our own glviewconvert */ |
| #define USE_GLCONVERT_FOR_INPUT 1 |
| |
| typedef struct _localstate |
| { |
| GstVideoMultiviewFramePacking in_mode; |
| GstVideoMultiviewFlags out_mode; |
| GstVideoMultiviewFlags in_flags, out_flags; |
| } LocalState; |
| |
| static GstBusSyncReply |
| create_window (GstBus * bus, GstMessage * message, GtkWidget * widget) |
| { |
| if (gst_gtk_handle_need_context (bus, message, NULL)) |
| return GST_BUS_DROP; |
| |
| /* ignore anything but 'prepare-window-handle' element messages */ |
| if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT) |
| return GST_BUS_PASS; |
| |
| if (!gst_is_video_overlay_prepare_window_handle_message (message)) |
| return GST_BUS_PASS; |
| |
| /* do not call gdk_window_ensure_native for the first time here because |
| * we are in a different thread than the main thread */ |
| gst_video_overlay_set_gtk_window (GST_VIDEO_OVERLAY (GST_MESSAGE_SRC |
| (message)), widget); |
| |
| gst_message_unref (message); |
| |
| return GST_BUS_DROP; |
| } |
| |
| static void |
| end_stream_cb (GstBus * bus, GstMessage * message, GstElement * pipeline) |
| { |
| switch (GST_MESSAGE_TYPE (message)) { |
| case GST_MESSAGE_EOS: |
| g_print ("End of stream\n"); |
| |
| gst_element_set_state (pipeline, GST_STATE_NULL); |
| gst_object_unref (pipeline); |
| gtk_main_quit (); |
| break; |
| case GST_MESSAGE_ERROR: |
| { |
| gchar *debug = NULL; |
| GError *err = NULL; |
| |
| gst_message_parse_error (message, &err, &debug); |
| |
| g_print ("Error: %s\n", err->message); |
| g_error_free (err); |
| |
| if (debug) { |
| g_print ("Debug details: %s\n", debug); |
| g_free (debug); |
| } |
| |
| gst_element_set_state (pipeline, GST_STATE_NULL); |
| gst_object_unref (pipeline); |
| gtk_main_quit (); |
| break; |
| } |
| default: |
| break; |
| } |
| } |
| |
| static gboolean |
| draw_cb (GtkWidget * widget, cairo_t * cr, GstElement * videosink) |
| { |
| gst_video_overlay_expose (GST_VIDEO_OVERLAY (videosink)); |
| return FALSE; |
| } |
| |
| static gboolean |
| resize_cb (GtkWidget * widget, GdkEvent * event, gpointer sink) |
| { |
| GtkAllocation allocation; |
| gint scale = 1; |
| |
| #if GTK_CHECK_VERSION(3, 10, 0) |
| scale = gtk_widget_get_scale_factor (widget); |
| #endif |
| |
| gtk_widget_get_allocation (widget, &allocation); |
| gst_video_overlay_set_render_rectangle (GST_VIDEO_OVERLAY (sink), |
| allocation.x * scale, allocation.y * scale, allocation.width * scale, |
| allocation.height * scale); |
| |
| return G_SOURCE_CONTINUE; |
| } |
| |
| static void |
| destroy_cb (GtkWidget * widget, GdkEvent * event, GstElement * pipeline) |
| { |
| gst_element_set_state (pipeline, GST_STATE_NULL); |
| gst_object_unref (pipeline); |
| |
| gtk_main_quit (); |
| } |
| |
| static void |
| button_state_ready_cb (GtkWidget * widget, GstElement * pipeline) |
| { |
| gst_element_set_state (pipeline, GST_STATE_READY); |
| } |
| |
| static void |
| button_state_paused_cb (GtkWidget * widget, GstElement * pipeline) |
| { |
| gst_element_set_state (pipeline, GST_STATE_PAUSED); |
| } |
| |
| static void |
| button_state_playing_cb (GtkWidget * widget, GstElement * pipeline) |
| { |
| gst_element_set_state (pipeline, GST_STATE_PLAYING); |
| } |
| |
| static gboolean |
| set_mview_mode (GtkWidget * combo, GObject * target, const gchar * prop_name) |
| { |
| gchar *mview_mode = NULL; |
| GEnumClass *p_class; |
| GEnumValue *v; |
| GParamSpec *p = |
| g_object_class_find_property (G_OBJECT_GET_CLASS (target), prop_name); |
| |
| g_return_val_if_fail (p != NULL, FALSE); |
| |
| p_class = G_PARAM_SPEC_ENUM (p)->enum_class; |
| g_return_val_if_fail (p_class != NULL, FALSE); |
| |
| g_object_get (G_OBJECT (combo), "active-id", &mview_mode, NULL); |
| g_return_val_if_fail (mview_mode != NULL, FALSE); |
| |
| v = g_enum_get_value_by_nick (p_class, mview_mode); |
| g_return_val_if_fail (v != NULL, FALSE); |
| |
| g_object_set (target, prop_name, v->value, NULL); |
| |
| return FALSE; |
| } |
| |
| static gboolean |
| set_mview_input_mode (GtkWidget * widget, gpointer data) |
| { |
| #if USE_GLCONVERT_FOR_INPUT |
| return set_mview_mode (widget, G_OBJECT (data), "input-mode-override"); |
| #else |
| return set_mview_mode (widget, G_OBJECT (data), "video-multiview-mode"); |
| #endif |
| } |
| |
| static gboolean |
| set_mview_output_mode (GtkWidget * widget, gpointer data) |
| { |
| GstElement *sink = gst_bin_get_by_name (GST_BIN (data), "sink"); |
| set_mview_mode (widget, G_OBJECT (sink), "output-multiview-mode"); |
| gst_object_unref (GST_OBJECT (sink)); |
| return FALSE; |
| } |
| |
| static void |
| input_flags_changed (GObject * gobject, GParamSpec * pspec, gpointer user_data) |
| { |
| GObject *target = G_OBJECT (user_data); |
| GstVideoMultiviewFlags flags; |
| |
| g_object_get (gobject, "flags", &flags, NULL); |
| #if USE_GLCONVERT_FOR_INPUT |
| g_object_set (target, "input-flags-override", flags, NULL); |
| #else |
| g_object_set (target, "video-multiview-flags", flags, NULL); |
| #endif |
| } |
| |
| static void |
| output_flags_changed (GObject * gobject, GParamSpec * pspec, gpointer user_data) |
| { |
| GObject *target = G_OBJECT (user_data); |
| GstVideoMultiviewFlags flags; |
| GstElement *sink = gst_bin_get_by_name (GST_BIN (target), "sink"); |
| |
| g_object_get (gobject, "flags", &flags, NULL); |
| g_object_set (G_OBJECT (sink), "output-multiview-flags", flags, NULL); |
| |
| gst_object_unref (GST_OBJECT (sink)); |
| } |
| |
| static void |
| downmix_method_changed (GObject * gobject, GParamSpec * pspec, gpointer user_data) |
| { |
| GObject *target = G_OBJECT (user_data); |
| GstGLStereoDownmix downmix_method; |
| GstElement *sink = gst_bin_get_by_name (GST_BIN (target), "sink"); |
| |
| g_object_get (gobject, "downmix-mode", &downmix_method, NULL); |
| g_object_set (sink, "output-multiview-downmix-mode", downmix_method, NULL); |
| gst_object_unref (GST_OBJECT (sink)); |
| } |
| |
| static const gchar * |
| enum_value_to_nick (GType enum_type, guint value) |
| { |
| GEnumClass *enum_info; |
| GEnumValue *v; |
| const gchar *nick; |
| |
| enum_info = (GEnumClass *) (g_type_class_ref (enum_type)); |
| g_return_val_if_fail (enum_info != NULL, NULL); |
| |
| v = g_enum_get_value (enum_info, value); |
| g_return_val_if_fail (v != NULL, NULL); |
| |
| nick = v->value_nick; |
| |
| g_type_class_unref (enum_info); |
| |
| return nick; |
| } |
| |
| static void |
| detect_mode_from_uri (LocalState * state, const gchar * uri) |
| { |
| if (strstr (uri, "HSBS")) { |
| state->in_mode = GST_VIDEO_MULTIVIEW_FRAME_PACKING_SIDE_BY_SIDE; |
| state->in_flags = GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT; |
| } else if (strstr (uri, "SBS")) { |
| state->in_mode = GST_VIDEO_MULTIVIEW_FRAME_PACKING_SIDE_BY_SIDE; |
| if (g_regex_match_simple ("half", uri, G_REGEX_CASELESS, |
| (GRegexMatchFlags) 0)) { |
| state->in_flags = GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT; |
| } |
| } |
| } |
| |
| gint |
| main (gint argc, gchar * argv[]) |
| { |
| LocalState state; |
| GtkWidget *area, *combo, *w; |
| const gchar *uri; |
| |
| #if defined (GDK_WINDOWING_X11) |
| XInitThreads (); |
| #endif |
| |
| gst_init (&argc, &argv); |
| gtk_init (&argc, &argv); |
| |
| if (argc < 2) { |
| g_print ("Usage: 3dvideo <uri-to-play>\n"); |
| return 1; |
| } |
| |
| uri = argv[1]; |
| |
| GstElement *pipeline = gst_element_factory_make ("playbin", NULL); |
| GstBin *sinkbin = (GstBin *) gst_parse_bin_from_description ("glupload ! glcolorconvert ! glviewconvert name=viewconvert ! glimagesink name=sink", TRUE, NULL); |
| #if USE_GLCONVERT_FOR_INPUT |
| GstElement *glconvert = gst_bin_get_by_name (sinkbin, "viewconvert"); |
| #endif |
| GstElement *videosink = gst_bin_get_by_name (sinkbin, "sink"); |
| |
| /* Get defaults */ |
| g_object_get (pipeline, "video-multiview-mode", &state.in_mode, |
| "video-multiview-flags", &state.in_flags, NULL); |
| gst_child_proxy_get (GST_CHILD_PROXY (videosink), "sink::output-multiview-mode", &state.out_mode, |
| "sink::output-multiview-flags", &state.out_flags, NULL); |
| |
| detect_mode_from_uri (&state, uri); |
| |
| g_return_val_if_fail (pipeline != NULL, 1); |
| g_return_val_if_fail (videosink != NULL, 1); |
| |
| g_object_set (G_OBJECT (pipeline), "video-sink", sinkbin, NULL); |
| g_object_set (G_OBJECT (pipeline), "uri", uri, NULL); |
| |
| #if USE_GLCONVERT_FOR_INPUT |
| g_object_set (G_OBJECT (glconvert), "input-mode-override", state.in_mode, |
| NULL); |
| g_object_set (G_OBJECT (glconvert), "input-flags-override", state.in_flags, |
| NULL); |
| #else |
| g_object_set (G_OBJECT (pipeline), "video-multiview-mode", state.in_mode, |
| NULL); |
| g_object_set (G_OBJECT (pipeline), "video-multiview-flags", state.in_flags, |
| NULL); |
| #endif |
| |
| /* Connect to bus for signal handling */ |
| GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); |
| gst_bus_add_signal_watch (bus); |
| g_signal_connect (bus, "message::error", G_CALLBACK (end_stream_cb), |
| pipeline); |
| g_signal_connect (bus, "message::warning", G_CALLBACK (end_stream_cb), |
| pipeline); |
| g_signal_connect (bus, "message::eos", G_CALLBACK (end_stream_cb), pipeline); |
| |
| gst_element_set_state (pipeline, GST_STATE_READY); |
| |
| area = gtk_drawing_area_new (); |
| gst_bus_set_sync_handler (bus, (GstBusSyncHandler) create_window, area, NULL); |
| gst_object_unref (bus); |
| |
| /* Toplevel window */ |
| GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL); |
| gtk_window_set_default_size (GTK_WINDOW (window), 800, 600); |
| gtk_window_set_title (GTK_WINDOW (window), "Stereoscopic video demo"); |
| GdkGeometry geometry; |
| geometry.min_width = 1; |
| geometry.min_height = 1; |
| geometry.max_width = -1; |
| geometry.max_height = -1; |
| gtk_window_set_geometry_hints (GTK_WINDOW (window), window, &geometry, |
| GDK_HINT_MIN_SIZE); |
| |
| GtkWidget *vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2); |
| gtk_container_add (GTK_CONTAINER (window), vbox); |
| |
| /* area where the video is drawn */ |
| gtk_box_pack_start (GTK_BOX (vbox), area, TRUE, TRUE, 0); |
| |
| /* Buttons to control the pipeline state */ |
| GtkWidget *table = gtk_grid_new (); |
| gtk_container_add (GTK_CONTAINER (vbox), table); |
| |
| GtkWidget *button_state_ready = gtk_button_new_with_label ("Stop"); |
| g_signal_connect (G_OBJECT (button_state_ready), "clicked", |
| G_CALLBACK (button_state_ready_cb), pipeline); |
| gtk_grid_attach (GTK_GRID (table), button_state_ready, 1, 0, 1, 1); |
| gtk_widget_show (button_state_ready); |
| |
| //control state paused |
| GtkWidget *button_state_paused = gtk_button_new_with_label ("Pause"); |
| g_signal_connect (G_OBJECT (button_state_paused), "clicked", |
| G_CALLBACK (button_state_paused_cb), pipeline); |
| gtk_grid_attach (GTK_GRID (table), button_state_paused, 2, 0, 1, 1); |
| gtk_widget_show (button_state_paused); |
| |
| //control state playing |
| GtkWidget *button_state_playing = gtk_button_new_with_label ("Play"); |
| g_signal_connect (G_OBJECT (button_state_playing), "clicked", |
| G_CALLBACK (button_state_playing_cb), pipeline); |
| gtk_grid_attach (GTK_GRID (table), button_state_playing, 3, 0, 1, 1); |
| //gtk_widget_show (button_state_playing); |
| |
| w = gst_mview_widget_new (FALSE); |
| combo = GST_MVIEW_WIDGET (w)->mode_selector; |
| gtk_combo_box_set_active_id (GTK_COMBO_BOX (combo), |
| enum_value_to_nick (GST_TYPE_VIDEO_MULTIVIEW_FRAME_PACKING, |
| state.in_mode)); |
| #if USE_GLCONVERT_FOR_INPUT |
| g_signal_connect (G_OBJECT (combo), "changed", |
| G_CALLBACK (set_mview_input_mode), glconvert); |
| #else |
| g_signal_connect (G_OBJECT (combo), "changed", |
| G_CALLBACK (set_mview_input_mode), pipeline); |
| #endif |
| |
| g_object_set (G_OBJECT (w), "flags", state.in_flags, NULL); |
| #if USE_GLCONVERT_FOR_INPUT |
| g_signal_connect (G_OBJECT (w), "notify::flags", |
| G_CALLBACK (input_flags_changed), glconvert); |
| #else |
| g_signal_connect (G_OBJECT (w), "notify::flags", |
| G_CALLBACK (input_flags_changed), pipeline); |
| #endif |
| gtk_container_add (GTK_CONTAINER (vbox), w); |
| |
| w = gst_mview_widget_new (TRUE); |
| combo = GST_MVIEW_WIDGET (w)->mode_selector; |
| gtk_combo_box_set_active_id (GTK_COMBO_BOX (combo), |
| enum_value_to_nick (GST_TYPE_VIDEO_MULTIVIEW_MODE, state.out_mode)); |
| g_signal_connect (G_OBJECT (combo), "changed", |
| G_CALLBACK (set_mview_output_mode), videosink); |
| |
| g_object_set (G_OBJECT (w), "flags", state.out_flags, NULL); |
| g_signal_connect (G_OBJECT (w), "notify::flags", |
| G_CALLBACK (output_flags_changed), videosink); |
| g_signal_connect (G_OBJECT (w), "notify::downmix-mode", |
| G_CALLBACK (downmix_method_changed), videosink); |
| gtk_container_add (GTK_CONTAINER (vbox), w); |
| |
| //configure the pipeline |
| g_signal_connect (G_OBJECT (window), "delete-event", G_CALLBACK (destroy_cb), |
| pipeline); |
| |
| gtk_widget_realize (area); |
| |
| /* Redraw needed when paused or stopped (PAUSED or READY) */ |
| g_signal_connect (area, "draw", G_CALLBACK (draw_cb), videosink); |
| g_signal_connect(area, "configure-event", G_CALLBACK(resize_cb), videosink); |
| |
| gtk_widget_show_all (window); |
| |
| gst_element_set_state (pipeline, GST_STATE_PLAYING); |
| |
| gtk_main (); |
| |
| return 0; |
| } |