mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-04 23:46:43 +00:00
bbe084de9d
Use the GTK scaling factor to scale the video allocation so video displays correctly on hi-dpi screens
444 lines
13 KiB
C++
444 lines
13 KiB
C++
/*
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* GStreamer
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* Copyright (C) 2008-2009 Julien Isorce <julien.isorce@gmail.com>
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* Copyright (C) 2014-2015 Jan Schmidt <jan@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <gdk/gdk.h>
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#if defined (GDK_WINDOWING_X11)
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#include <X11/Xlib.h>
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#endif
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#include <gst/gst.h>
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#include <gtk/gtk.h>
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#include <gst/video/video-info.h>
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#include "../gstgtk.h"
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#include "mviewwidget.h"
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/* Until playbin properties support dynamic changes,
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* use our own glviewconvert */
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#define USE_GLCONVERT_FOR_INPUT 1
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typedef struct _localstate
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{
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GstVideoMultiviewFramePacking in_mode;
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GstVideoMultiviewFlags out_mode;
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GstVideoMultiviewFlags in_flags, out_flags;
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} LocalState;
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static GstBusSyncReply
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create_window (GstBus * bus, GstMessage * message, GtkWidget * widget)
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{
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if (gst_gtk_handle_need_context (bus, message, NULL))
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return GST_BUS_DROP;
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/* ignore anything but 'prepare-window-handle' element messages */
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if (GST_MESSAGE_TYPE (message) != GST_MESSAGE_ELEMENT)
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return GST_BUS_PASS;
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if (!gst_is_video_overlay_prepare_window_handle_message (message))
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return GST_BUS_PASS;
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/* do not call gdk_window_ensure_native for the first time here because
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* we are in a different thread than the main thread */
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gst_video_overlay_set_gtk_window (GST_VIDEO_OVERLAY (GST_MESSAGE_SRC
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(message)), widget);
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gst_message_unref (message);
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return GST_BUS_DROP;
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}
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static void
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end_stream_cb (GstBus * bus, GstMessage * message, GstElement * pipeline)
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{
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switch (GST_MESSAGE_TYPE (message)) {
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case GST_MESSAGE_EOS:
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g_print ("End of stream\n");
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (pipeline);
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gtk_main_quit ();
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break;
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case GST_MESSAGE_ERROR:
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{
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gchar *debug = NULL;
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GError *err = NULL;
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gst_message_parse_error (message, &err, &debug);
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g_print ("Error: %s\n", err->message);
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g_error_free (err);
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if (debug) {
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g_print ("Debug details: %s\n", debug);
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g_free (debug);
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}
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (pipeline);
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gtk_main_quit ();
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break;
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}
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default:
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break;
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}
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}
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static gboolean
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draw_cb (GtkWidget * widget, cairo_t * cr, GstElement * videosink)
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{
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gst_video_overlay_expose (GST_VIDEO_OVERLAY (videosink));
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return FALSE;
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}
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static gboolean
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resize_cb (GtkWidget * widget, GdkEvent * event, gpointer sink)
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{
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GtkAllocation allocation;
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gint scale = 1;
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#if GTK_CHECK_VERSION(3, 10, 0)
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scale = gtk_widget_get_scale_factor (widget);
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#endif
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gtk_widget_get_allocation (widget, &allocation);
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gst_video_overlay_set_render_rectangle (GST_VIDEO_OVERLAY (sink),
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allocation.x * scale, allocation.y * scale, allocation.width * scale,
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allocation.height * scale);
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return G_SOURCE_CONTINUE;
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}
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static void
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destroy_cb (GtkWidget * widget, GdkEvent * event, GstElement * pipeline)
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{
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (pipeline);
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gtk_main_quit ();
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}
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static void
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button_state_ready_cb (GtkWidget * widget, GstElement * pipeline)
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{
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gst_element_set_state (pipeline, GST_STATE_READY);
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}
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static void
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button_state_paused_cb (GtkWidget * widget, GstElement * pipeline)
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{
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gst_element_set_state (pipeline, GST_STATE_PAUSED);
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}
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static void
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button_state_playing_cb (GtkWidget * widget, GstElement * pipeline)
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{
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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}
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static gboolean
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set_mview_mode (GtkWidget * combo, GObject * target, const gchar * prop_name)
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{
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gchar *mview_mode = NULL;
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GEnumClass *p_class;
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GEnumValue *v;
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GParamSpec *p =
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g_object_class_find_property (G_OBJECT_GET_CLASS (target), prop_name);
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g_return_val_if_fail (p != NULL, FALSE);
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p_class = G_PARAM_SPEC_ENUM (p)->enum_class;
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g_return_val_if_fail (p_class != NULL, FALSE);
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g_object_get (G_OBJECT (combo), "active-id", &mview_mode, NULL);
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g_return_val_if_fail (mview_mode != NULL, FALSE);
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v = g_enum_get_value_by_nick (p_class, mview_mode);
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g_return_val_if_fail (v != NULL, FALSE);
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g_object_set (target, prop_name, v->value, NULL);
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return FALSE;
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}
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static gboolean
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set_mview_input_mode (GtkWidget * widget, gpointer data)
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{
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#if USE_GLCONVERT_FOR_INPUT
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return set_mview_mode (widget, G_OBJECT (data), "input-mode-override");
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#else
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return set_mview_mode (widget, G_OBJECT (data), "video-multiview-mode");
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#endif
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}
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static gboolean
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set_mview_output_mode (GtkWidget * widget, gpointer data)
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{
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GstElement *sink = gst_bin_get_by_name (GST_BIN (data), "sink");
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set_mview_mode (widget, G_OBJECT (sink), "output-multiview-mode");
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gst_object_unref (GST_OBJECT (sink));
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return FALSE;
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}
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static void
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input_flags_changed (GObject * gobject, GParamSpec * pspec, gpointer user_data)
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{
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GObject *target = G_OBJECT (user_data);
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GstVideoMultiviewFlags flags;
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g_object_get (gobject, "flags", &flags, NULL);
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#if USE_GLCONVERT_FOR_INPUT
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g_object_set (target, "input-flags-override", flags, NULL);
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#else
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g_object_set (target, "video-multiview-flags", flags, NULL);
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#endif
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}
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static void
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output_flags_changed (GObject * gobject, GParamSpec * pspec, gpointer user_data)
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{
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GObject *target = G_OBJECT (user_data);
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GstVideoMultiviewFlags flags;
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GstElement *sink = gst_bin_get_by_name (GST_BIN (target), "sink");
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g_object_get (gobject, "flags", &flags, NULL);
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g_object_set (G_OBJECT (sink), "output-multiview-flags", flags, NULL);
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gst_object_unref (GST_OBJECT (sink));
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}
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static void
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downmix_method_changed (GObject * gobject, GParamSpec * pspec, gpointer user_data)
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{
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GObject *target = G_OBJECT (user_data);
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GstGLStereoDownmix downmix_method;
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GstElement *sink = gst_bin_get_by_name (GST_BIN (target), "sink");
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g_object_get (gobject, "downmix-mode", &downmix_method, NULL);
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g_object_set (sink, "output-multiview-downmix-mode", downmix_method, NULL);
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gst_object_unref (GST_OBJECT (sink));
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}
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static const gchar *
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enum_value_to_nick (GType enum_type, guint value)
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{
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GEnumClass *enum_info;
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GEnumValue *v;
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const gchar *nick;
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enum_info = (GEnumClass *) (g_type_class_ref (enum_type));
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g_return_val_if_fail (enum_info != NULL, NULL);
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v = g_enum_get_value (enum_info, value);
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g_return_val_if_fail (v != NULL, NULL);
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nick = v->value_nick;
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g_type_class_unref (enum_info);
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return nick;
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}
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static void
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detect_mode_from_uri (LocalState * state, const gchar * uri)
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{
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if (strstr (uri, "HSBS")) {
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state->in_mode = GST_VIDEO_MULTIVIEW_FRAME_PACKING_SIDE_BY_SIDE;
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state->in_flags = GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT;
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} else if (strstr (uri, "SBS")) {
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state->in_mode = GST_VIDEO_MULTIVIEW_FRAME_PACKING_SIDE_BY_SIDE;
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if (g_regex_match_simple ("half", uri, G_REGEX_CASELESS,
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(GRegexMatchFlags) 0)) {
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state->in_flags = GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT;
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}
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}
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}
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gint
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main (gint argc, gchar * argv[])
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{
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LocalState state;
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GtkWidget *area, *combo, *w;
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const gchar *uri;
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#if defined (GDK_WINDOWING_X11)
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XInitThreads ();
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#endif
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gst_init (&argc, &argv);
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gtk_init (&argc, &argv);
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if (argc < 2) {
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g_print ("Usage: 3dvideo <uri-to-play>\n");
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return 1;
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}
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uri = argv[1];
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GstElement *pipeline = gst_element_factory_make ("playbin", NULL);
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GstBin *sinkbin = (GstBin *) gst_parse_bin_from_description ("glupload ! glcolorconvert ! glviewconvert name=viewconvert ! glimagesink name=sink", TRUE, NULL);
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#if USE_GLCONVERT_FOR_INPUT
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GstElement *glconvert = gst_bin_get_by_name (sinkbin, "viewconvert");
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#endif
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GstElement *videosink = gst_bin_get_by_name (sinkbin, "sink");
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/* Get defaults */
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g_object_get (pipeline, "video-multiview-mode", &state.in_mode,
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"video-multiview-flags", &state.in_flags, NULL);
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gst_child_proxy_get (GST_CHILD_PROXY (videosink), "sink::output-multiview-mode", &state.out_mode,
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"sink::output-multiview-flags", &state.out_flags, NULL);
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detect_mode_from_uri (&state, uri);
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g_return_val_if_fail (pipeline != NULL, 1);
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g_return_val_if_fail (videosink != NULL, 1);
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g_object_set (G_OBJECT (pipeline), "video-sink", sinkbin, NULL);
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g_object_set (G_OBJECT (pipeline), "uri", uri, NULL);
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#if USE_GLCONVERT_FOR_INPUT
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g_object_set (G_OBJECT (glconvert), "input-mode-override", state.in_mode,
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NULL);
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g_object_set (G_OBJECT (glconvert), "input-flags-override", state.in_flags,
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NULL);
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#else
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g_object_set (G_OBJECT (pipeline), "video-multiview-mode", state.in_mode,
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NULL);
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g_object_set (G_OBJECT (pipeline), "video-multiview-flags", state.in_flags,
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NULL);
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#endif
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/* Connect to bus for signal handling */
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GstBus *bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
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gst_bus_add_signal_watch (bus);
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g_signal_connect (bus, "message::error", G_CALLBACK (end_stream_cb),
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pipeline);
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g_signal_connect (bus, "message::warning", G_CALLBACK (end_stream_cb),
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pipeline);
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g_signal_connect (bus, "message::eos", G_CALLBACK (end_stream_cb), pipeline);
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gst_element_set_state (pipeline, GST_STATE_READY);
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area = gtk_drawing_area_new ();
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gst_bus_set_sync_handler (bus, (GstBusSyncHandler) create_window, area, NULL);
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gst_object_unref (bus);
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/* Toplevel window */
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GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
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gtk_window_set_title (GTK_WINDOW (window), "Stereoscopic video demo");
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GdkGeometry geometry;
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geometry.min_width = 1;
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geometry.min_height = 1;
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geometry.max_width = -1;
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geometry.max_height = -1;
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gtk_window_set_geometry_hints (GTK_WINDOW (window), window, &geometry,
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GDK_HINT_MIN_SIZE);
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GtkWidget *vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
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gtk_container_add (GTK_CONTAINER (window), vbox);
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/* area where the video is drawn */
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gtk_box_pack_start (GTK_BOX (vbox), area, TRUE, TRUE, 0);
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/* Buttons to control the pipeline state */
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GtkWidget *table = gtk_grid_new ();
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gtk_container_add (GTK_CONTAINER (vbox), table);
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GtkWidget *button_state_ready = gtk_button_new_with_label ("Stop");
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g_signal_connect (G_OBJECT (button_state_ready), "clicked",
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G_CALLBACK (button_state_ready_cb), pipeline);
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gtk_grid_attach (GTK_GRID (table), button_state_ready, 1, 0, 1, 1);
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gtk_widget_show (button_state_ready);
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//control state paused
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GtkWidget *button_state_paused = gtk_button_new_with_label ("Pause");
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g_signal_connect (G_OBJECT (button_state_paused), "clicked",
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G_CALLBACK (button_state_paused_cb), pipeline);
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gtk_grid_attach (GTK_GRID (table), button_state_paused, 2, 0, 1, 1);
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gtk_widget_show (button_state_paused);
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//control state playing
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GtkWidget *button_state_playing = gtk_button_new_with_label ("Play");
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g_signal_connect (G_OBJECT (button_state_playing), "clicked",
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G_CALLBACK (button_state_playing_cb), pipeline);
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gtk_grid_attach (GTK_GRID (table), button_state_playing, 3, 0, 1, 1);
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//gtk_widget_show (button_state_playing);
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w = gst_mview_widget_new (FALSE);
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combo = GST_MVIEW_WIDGET (w)->mode_selector;
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gtk_combo_box_set_active_id (GTK_COMBO_BOX (combo),
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enum_value_to_nick (GST_TYPE_VIDEO_MULTIVIEW_FRAME_PACKING,
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state.in_mode));
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#if USE_GLCONVERT_FOR_INPUT
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g_signal_connect (G_OBJECT (combo), "changed",
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G_CALLBACK (set_mview_input_mode), glconvert);
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#else
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g_signal_connect (G_OBJECT (combo), "changed",
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G_CALLBACK (set_mview_input_mode), pipeline);
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#endif
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g_object_set (G_OBJECT (w), "flags", state.in_flags, NULL);
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#if USE_GLCONVERT_FOR_INPUT
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g_signal_connect (G_OBJECT (w), "notify::flags",
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G_CALLBACK (input_flags_changed), glconvert);
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#else
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g_signal_connect (G_OBJECT (w), "notify::flags",
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G_CALLBACK (input_flags_changed), pipeline);
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#endif
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gtk_container_add (GTK_CONTAINER (vbox), w);
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w = gst_mview_widget_new (TRUE);
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combo = GST_MVIEW_WIDGET (w)->mode_selector;
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gtk_combo_box_set_active_id (GTK_COMBO_BOX (combo),
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enum_value_to_nick (GST_TYPE_VIDEO_MULTIVIEW_MODE, state.out_mode));
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g_signal_connect (G_OBJECT (combo), "changed",
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G_CALLBACK (set_mview_output_mode), videosink);
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g_object_set (G_OBJECT (w), "flags", state.out_flags, NULL);
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g_signal_connect (G_OBJECT (w), "notify::flags",
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G_CALLBACK (output_flags_changed), videosink);
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g_signal_connect (G_OBJECT (w), "notify::downmix-mode",
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G_CALLBACK (downmix_method_changed), videosink);
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gtk_container_add (GTK_CONTAINER (vbox), w);
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//configure the pipeline
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g_signal_connect (G_OBJECT (window), "delete-event", G_CALLBACK (destroy_cb),
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pipeline);
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gtk_widget_realize (area);
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/* Redraw needed when paused or stopped (PAUSED or READY) */
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g_signal_connect (area, "draw", G_CALLBACK (draw_cb), videosink);
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g_signal_connect(area, "configure-event", G_CALLBACK(resize_cb), videosink);
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gtk_widget_show_all (window);
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gst_element_set_state (pipeline, GST_STATE_PLAYING);
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gtk_main ();
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return 0;
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}
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