playback/player: Add GTK+ sample application

This commit is contained in:
Sebastian Dröge 2014-07-30 16:18:01 +02:00
parent be4f88ef41
commit 3352d5aee0
2 changed files with 235 additions and 0 deletions

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CFLAGS ?= -Wall -O2 -g
PKGCONFIG ?= pkg-config
LIBS := $(shell $(PKGCONFIG) --libs --cflags gstreamer-1.0 gstreamer-video-1.0 gtk+-3.0) -lm
all: gtk-play
clean:
rm -f gtk-play
SOURCES = \
gtk-play.c \
../lib/gstplayer.c
HEADERS = \
../lib/gstplayer.h
gtk-play: $(SOURCES) $(HEADERS)
$(CC) -o $@ $(SOURCES) $(CFLAGS) $(LIBS) -I../lib

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#include <string.h>
#include <gst/gst.h>
#include <gst/video/videooverlay.h>
#include <gdk/gdk.h>
#if defined (GDK_WINDOWING_X11)
#include <gdk/gdkx.h>
#elif defined (GDK_WINDOWING_WIN32)
#include <gdk/gdkwin32.h>
#elif defined (GDK_WINDOWING_QUARTZ)
#include <gdk/gdkquartz.h>
#endif
#include <gtk/gtk.h>
#include "../lib/gstplayer.h"
typedef struct
{
GstPlayer *player;
gchar *uri;
GtkWidget *window;
GtkWidget *play_button, *pause_button;
GtkWidget *seekbar;
GtkWidget *video_area;
gulong seekbar_value_changed_signal_id;
} GtkPlay;
static void
delete_event_cb (GtkWidget * widget, GdkEvent * event, GtkPlay * play)
{
gst_player_stop (play->player);
gtk_main_quit ();
}
static void
video_area_realize_cb (GtkWidget * widget, GtkPlay * play)
{
GdkWindow *window = gtk_widget_get_window (widget);
guintptr window_handle;
if (!gdk_window_ensure_native (window))
g_error ("Couldn't create native window needed for GstXOverlay!");
#if defined (GDK_WINDOWING_WIN32)
window_handle = (guintptr) GDK_WINDOW_HWND (window);
#elif defined (GDK_WINDOWING_QUARTZ)
window_handle = gdk_quartz_window_get_nsview (window);
#elif defined (GDK_WINDOWING_X11)
window_handle = GDK_WINDOW_XID (window);
#endif
g_object_set (play->player, "window-handle", (gpointer) window_handle, NULL);
}
static void
play_clicked_cb (GtkButton * button, GtkPlay * play)
{
gst_player_play (play->player);
}
static void
pause_clicked_cb (GtkButton * button, GtkPlay * play)
{
gst_player_pause (play->player);
}
static void
seekbar_value_changed_cb (GtkRange * range, GtkPlay * play)
{
gdouble value = gtk_range_get_value (GTK_RANGE (play->seekbar));
gst_player_seek (play->player, gst_util_uint64_scale (value, GST_SECOND, 1));
}
static void
create_ui (GtkPlay * play)
{
GtkWidget *controls, *main_hbox, *main_vbox;
play->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_signal_connect (G_OBJECT (play->window), "delete-event",
G_CALLBACK (delete_event_cb), play);
play->video_area = gtk_drawing_area_new ();
gtk_widget_set_double_buffered (play->video_area, FALSE);
g_signal_connect (play->video_area, "realize",
G_CALLBACK (video_area_realize_cb), play);
play->play_button =
gtk_button_new_from_icon_name ("media-playback-start",
GTK_ICON_SIZE_BUTTON);
g_signal_connect (G_OBJECT (play->play_button), "clicked",
G_CALLBACK (play_clicked_cb), play);
play->pause_button =
gtk_button_new_from_icon_name ("media-playback-pause",
GTK_ICON_SIZE_BUTTON);
g_signal_connect (G_OBJECT (play->pause_button), "clicked",
G_CALLBACK (pause_clicked_cb), play);
play->seekbar =
gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL, 0, 100, 1);
gtk_scale_set_draw_value (GTK_SCALE (play->seekbar), 0);
play->seekbar_value_changed_signal_id =
g_signal_connect (G_OBJECT (play->seekbar), "value-changed",
G_CALLBACK (seekbar_value_changed_cb), play);
controls = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_pack_start (GTK_BOX (controls), play->play_button, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (controls), play->pause_button, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (controls), play->seekbar, TRUE, TRUE, 2);
main_hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_pack_start (GTK_BOX (main_hbox), play->video_area, TRUE, TRUE, 0);
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_box_pack_start (GTK_BOX (main_vbox), main_hbox, TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (main_vbox), controls, FALSE, FALSE, 0);
gtk_container_add (GTK_CONTAINER (play->window), main_vbox);
gtk_widget_realize (play->video_area);
gtk_widget_show_all (play->window);
gtk_widget_hide (play->video_area);
}
static void
play_clear (GtkPlay * play)
{
g_free (play->uri);
g_object_unref (play->player);
}
static void
duration_changed_cb (GstPlayer * unused, GstClockTime duration, GtkPlay * play)
{
gtk_range_set_range (GTK_RANGE (play->seekbar), 0,
(gdouble) duration / GST_SECOND);
}
static void
position_updated_cb (GstPlayer * unused, GstClockTime position, GtkPlay * play)
{
g_signal_handler_block (play->seekbar, play->seekbar_value_changed_signal_id);
gtk_range_set_value (GTK_RANGE (play->seekbar),
(gdouble) position / GST_SECOND);
g_signal_handler_unblock (play->seekbar,
play->seekbar_value_changed_signal_id);
}
static void
video_dimensions_changed_cb (GstPlayer * unused, gint width, gint height,
GtkPlay * play)
{
gtk_widget_show (play->video_area);
}
int
main (gint argc, gchar ** argv)
{
GtkPlay play;
GOptionContext *ctx;
GOptionEntry options[] = {
{NULL}
};
GError *err = NULL;
memset (&play, 0, sizeof (play));
g_set_prgname ("gtk-play");
ctx = g_option_context_new ("FILE|URI");
g_option_context_add_main_entries (ctx, options, NULL);
g_option_context_add_group (ctx, gtk_get_option_group (TRUE));
g_option_context_add_group (ctx, gst_init_get_option_group ());
if (!g_option_context_parse (ctx, &argc, &argv, &err)) {
g_print ("Error initializing: %s\n", GST_STR_NULL (err->message));
return 1;
}
g_option_context_free (ctx);
// FIXME: Add support for playlists and stuff
play.uri = g_strdup (argv[1]);
if (!play.uri) {
g_print ("Usage: %s FILE|URI\n", argv[0]);
return 1;
}
play.player = gst_player_new (TRUE);
if (!gst_uri_is_valid (play.uri)) {
gchar *uri = gst_filename_to_uri (play.uri, NULL);
g_free (play.uri);
play.uri = uri;
}
g_object_set (play.player, "uri", play.uri, NULL);
create_ui (&play);
g_signal_connect (play.player, "position-updated",
G_CALLBACK (position_updated_cb), &play);
g_signal_connect (play.player, "duration-changed",
G_CALLBACK (duration_changed_cb), &play);
g_signal_connect (play.player, "video-dimensions-changed",
G_CALLBACK (video_dimensions_changed_cb), &play);
gst_player_pause (play.player);
gtk_main ();
play_clear (&play);
return 0;
}