Commit a12f8df0 authored by Tim-Philipp Müller's avatar Tim-Philipp Müller 🐠
parents 192b447e 3bdb3a89
# preamble
NULL =
BUILT_SOURCES =
CLEANFILES =
EXTRA_DIST =
DISTCLEANFILES =
lib_LTLIBRARIES =
# source
sources = \
gtkgstbasewidget.c \
gtkgstbasewidget.h \
gtkgstwidget.c \
gtkgstwidget.h \
gstgtkbasesink.c \
gstgtkbasesink.h \
gstgtksink.c \
gstgtksink.h \
gstgtkutils.c \
gstgtkutils.h \
gstplugin.c \
$(NULL)
libgstgtk_la_CFLAGS = \
$(GST_PLUGINS_BAD_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS) \
$(GST_GL_CFLAGS) \
$(GST_CFLAGS) \
$(GTK3_CFLAGS)
libgstgtk_la_LIBADD = \
$(GST_PLUGINS_BASE_LIBS) \
-lgstvideo-$(GST_API_VERSION) \
$(GST_BASE_LIBS) \
$(GTK3_LIBS)
libgstgtk_la_SOURCES = $(sources)
libgstgtk_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
if USE_GTK3_GL
if USE_GL
libgstgtk_la_SOURCES += gstgtkglsink.c gstgtkglsink.h gtkgstglwidget.c gtkgstglwidget.h
libgstgtk_la_LIBADD += $(GST_GL_LIBS)
endif
endif
plugin_LTLIBRARIES = libgstgtk.la
/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@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.
*/
/**
* SECTION:gtkgstsink
* @title: GstGtkBaseSink
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstgtkbasesink.h"
#include "gstgtkutils.h"
GST_DEBUG_CATEGORY (gst_debug_gtk_base_sink);
#define GST_CAT_DEFAULT gst_debug_gtk_base_sink
#define DEFAULT_FORCE_ASPECT_RATIO TRUE
#define DEFAULT_PAR_N 0
#define DEFAULT_PAR_D 1
#define DEFAULT_IGNORE_ALPHA TRUE
static void gst_gtk_base_sink_finalize (GObject * object);
static void gst_gtk_base_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * param_spec);
static void gst_gtk_base_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * param_spec);
static gboolean gst_gtk_base_sink_start (GstBaseSink * bsink);
static gboolean gst_gtk_base_sink_stop (GstBaseSink * bsink);
static GstStateChangeReturn
gst_gtk_base_sink_change_state (GstElement * element,
GstStateChange transition);
static void gst_gtk_base_sink_get_times (GstBaseSink * bsink, GstBuffer * buf,
GstClockTime * start, GstClockTime * end);
static gboolean gst_gtk_base_sink_set_caps (GstBaseSink * bsink,
GstCaps * caps);
static GstFlowReturn gst_gtk_base_sink_show_frame (GstVideoSink * bsink,
GstBuffer * buf);
static void
gst_gtk_base_sink_navigation_interface_init (GstNavigationInterface * iface);
enum
{
PROP_0,
PROP_WIDGET,
PROP_FORCE_ASPECT_RATIO,
PROP_PIXEL_ASPECT_RATIO,
PROP_IGNORE_ALPHA,
};
#define gst_gtk_base_sink_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstGtkBaseSink, gst_gtk_base_sink,
GST_TYPE_VIDEO_SINK,
G_IMPLEMENT_INTERFACE (GST_TYPE_NAVIGATION,
gst_gtk_base_sink_navigation_interface_init);
GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_base_sink,
"gtkbasesink", 0, "Gtk Video Sink base class"));
static void
gst_gtk_base_sink_class_init (GstGtkBaseSinkClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSinkClass *gstbasesink_class;
GstVideoSinkClass *gstvideosink_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasesink_class = (GstBaseSinkClass *) klass;
gstvideosink_class = (GstVideoSinkClass *) klass;
gobject_class->set_property = gst_gtk_base_sink_set_property;
gobject_class->get_property = gst_gtk_base_sink_get_property;
g_object_class_install_property (gobject_class, PROP_WIDGET,
g_param_spec_object ("widget", "Gtk Widget",
"The GtkWidget to place in the widget hierarchy "
"(must only be get from the GTK main thread)",
GTK_TYPE_WIDGET, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean ("force-aspect-ratio",
"Force aspect ratio",
"When enabled, scaling will respect original aspect ratio",
DEFAULT_FORCE_ASPECT_RATIO,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PIXEL_ASPECT_RATIO,
gst_param_spec_fraction ("pixel-aspect-ratio", "Pixel Aspect Ratio",
"The pixel aspect ratio of the device", DEFAULT_PAR_N, DEFAULT_PAR_D,
G_MAXINT, 1, 1, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_IGNORE_ALPHA,
g_param_spec_boolean ("ignore-alpha", "Ignore Alpha",
"When enabled, alpha will be ignored and converted to black",
DEFAULT_IGNORE_ALPHA, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gobject_class->finalize = gst_gtk_base_sink_finalize;
gstelement_class->change_state = gst_gtk_base_sink_change_state;
gstbasesink_class->set_caps = gst_gtk_base_sink_set_caps;
gstbasesink_class->get_times = gst_gtk_base_sink_get_times;
gstbasesink_class->start = gst_gtk_base_sink_start;
gstbasesink_class->stop = gst_gtk_base_sink_stop;
gstvideosink_class->show_frame = gst_gtk_base_sink_show_frame;
}
static void
gst_gtk_base_sink_init (GstGtkBaseSink * gtk_sink)
{
gtk_sink->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
gtk_sink->par_n = DEFAULT_PAR_N;
gtk_sink->par_d = DEFAULT_PAR_D;
gtk_sink->ignore_alpha = DEFAULT_IGNORE_ALPHA;
}
static void
gst_gtk_base_sink_finalize (GObject * object)
{
GstGtkBaseSink *gtk_sink = GST_GTK_BASE_SINK (object);
GST_OBJECT_LOCK (gtk_sink);
if (gtk_sink->window && gtk_sink->window_destroy_id)
g_signal_handler_disconnect (gtk_sink->window, gtk_sink->window_destroy_id);
if (gtk_sink->widget && gtk_sink->widget_destroy_id)
g_signal_handler_disconnect (gtk_sink->widget, gtk_sink->widget_destroy_id);
g_clear_object (&gtk_sink->widget);
GST_OBJECT_UNLOCK (gtk_sink);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
widget_destroy_cb (GtkWidget * widget, GstGtkBaseSink * gtk_sink)
{
GST_OBJECT_LOCK (gtk_sink);
g_clear_object (&gtk_sink->widget);
GST_OBJECT_UNLOCK (gtk_sink);
}
static void
window_destroy_cb (GtkWidget * widget, GstGtkBaseSink * gtk_sink)
{
GST_OBJECT_LOCK (gtk_sink);
gtk_sink->window = NULL;
GST_OBJECT_UNLOCK (gtk_sink);
}
static GtkGstBaseWidget *
gst_gtk_base_sink_get_widget (GstGtkBaseSink * gtk_sink)
{
if (gtk_sink->widget != NULL)
return gtk_sink->widget;
/* Ensure GTK is initialized, this has no side effect if it was already
* initialized. Also, we do that lazily, so the application can be first */
if (!gtk_init_check (NULL, NULL)) {
GST_ERROR_OBJECT (gtk_sink, "Could not ensure GTK initialization.");
return NULL;
}
g_assert (GST_GTK_BASE_SINK_GET_CLASS (gtk_sink)->create_widget);
gtk_sink->widget = (GtkGstBaseWidget *)
GST_GTK_BASE_SINK_GET_CLASS (gtk_sink)->create_widget ();
gtk_sink->bind_aspect_ratio =
g_object_bind_property (gtk_sink, "force-aspect-ratio", gtk_sink->widget,
"force-aspect-ratio", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
gtk_sink->bind_pixel_aspect_ratio =
g_object_bind_property (gtk_sink, "pixel-aspect-ratio", gtk_sink->widget,
"pixel-aspect-ratio", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
gtk_sink->bind_ignore_alpha =
g_object_bind_property (gtk_sink, "ignore-alpha", gtk_sink->widget,
"ignore-alpha", G_BINDING_BIDIRECTIONAL | G_BINDING_SYNC_CREATE);
/* Take the floating ref, other wise the destruction of the container will
* make this widget disapear possibly before we are done. */
gst_object_ref_sink (gtk_sink->widget);
gtk_sink->widget_destroy_id = g_signal_connect (gtk_sink->widget, "destroy",
G_CALLBACK (widget_destroy_cb), gtk_sink);
/* back pointer */
gtk_gst_base_widget_set_element (GTK_GST_BASE_WIDGET (gtk_sink->widget),
GST_ELEMENT (gtk_sink));
return gtk_sink->widget;
}
static void
gst_gtk_base_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstGtkBaseSink *gtk_sink = GST_GTK_BASE_SINK (object);
switch (prop_id) {
case PROP_WIDGET:
{
GObject *widget = NULL;
GST_OBJECT_LOCK (gtk_sink);
if (gtk_sink->widget != NULL)
widget = G_OBJECT (gtk_sink->widget);
GST_OBJECT_UNLOCK (gtk_sink);
if (!widget)
widget =
gst_gtk_invoke_on_main ((GThreadFunc) gst_gtk_base_sink_get_widget,
gtk_sink);
g_value_set_object (value, widget);
break;
}
case PROP_FORCE_ASPECT_RATIO:
g_value_set_boolean (value, gtk_sink->force_aspect_ratio);
break;
case PROP_PIXEL_ASPECT_RATIO:
gst_value_set_fraction (value, gtk_sink->par_n, gtk_sink->par_d);
break;
case PROP_IGNORE_ALPHA:
g_value_set_boolean (value, gtk_sink->ignore_alpha);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gtk_base_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGtkBaseSink *gtk_sink = GST_GTK_BASE_SINK (object);
switch (prop_id) {
case PROP_FORCE_ASPECT_RATIO:
gtk_sink->force_aspect_ratio = g_value_get_boolean (value);
break;
case PROP_PIXEL_ASPECT_RATIO:
gtk_sink->par_n = gst_value_get_fraction_numerator (value);
gtk_sink->par_d = gst_value_get_fraction_denominator (value);
break;
case PROP_IGNORE_ALPHA:
gtk_sink->ignore_alpha = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_gtk_base_sink_navigation_send_event (GstNavigation * navigation,
GstStructure * structure)
{
GstGtkBaseSink *sink = GST_GTK_BASE_SINK (navigation);
GstEvent *event;
GstPad *pad;
event = gst_event_new_navigation (structure);
pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (sink));
GST_TRACE_OBJECT (sink, "navigation event %" GST_PTR_FORMAT, structure);
if (GST_IS_PAD (pad) && GST_IS_EVENT (event)) {
if (!gst_pad_send_event (pad, gst_event_ref (event))) {
/* If upstream didn't handle the event we'll post a message with it
* for the application in case it wants to do something with it */
gst_element_post_message (GST_ELEMENT_CAST (sink),
gst_navigation_message_new_event (GST_OBJECT_CAST (sink), event));
}
gst_event_unref (event);
gst_object_unref (pad);
}
}
static void
gst_gtk_base_sink_navigation_interface_init (GstNavigationInterface * iface)
{
iface->send_event = gst_gtk_base_sink_navigation_send_event;
}
static gboolean
gst_gtk_base_sink_start_on_main (GstBaseSink * bsink)
{
GstGtkBaseSink *gst_sink = GST_GTK_BASE_SINK (bsink);
GstGtkBaseSinkClass *klass = GST_GTK_BASE_SINK_GET_CLASS (bsink);
GtkWidget *toplevel;
if (gst_gtk_base_sink_get_widget (gst_sink) == NULL)
return FALSE;
/* After this point, gtk_sink->widget will always be set */
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (gst_sink->widget));
if (!gtk_widget_is_toplevel (toplevel)) {
/* sanity check */
g_assert (klass->window_title);
/* User did not add widget its own UI, let's popup a new GtkWindow to
* make gst-launch-1.0 work. */
gst_sink->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size (GTK_WINDOW (gst_sink->window), 640, 480);
gtk_window_set_title (GTK_WINDOW (gst_sink->window), klass->window_title);
gtk_container_add (GTK_CONTAINER (gst_sink->window), toplevel);
gst_sink->window_destroy_id = g_signal_connect (gst_sink->window, "destroy",
G_CALLBACK (window_destroy_cb), gst_sink);
}
return TRUE;
}
static gboolean
gst_gtk_base_sink_start (GstBaseSink * bsink)
{
return ! !gst_gtk_invoke_on_main ((GThreadFunc)
gst_gtk_base_sink_start_on_main, bsink);
}
static gboolean
gst_gtk_base_sink_stop_on_main (GstBaseSink * bsink)
{
GstGtkBaseSink *gst_sink = GST_GTK_BASE_SINK (bsink);
if (gst_sink->window) {
gtk_widget_destroy (gst_sink->window);
gst_sink->window = NULL;
gst_sink->widget = NULL;
}
return TRUE;
}
static gboolean
gst_gtk_base_sink_stop (GstBaseSink * bsink)
{
GstGtkBaseSink *gst_sink = GST_GTK_BASE_SINK (bsink);
if (gst_sink->window)
return ! !gst_gtk_invoke_on_main ((GThreadFunc)
gst_gtk_base_sink_stop_on_main, bsink);
return TRUE;
}
static void
gst_gtk_widget_show_all_and_unref (GtkWidget * widget)
{
gtk_widget_show_all (widget);
g_object_unref (widget);
}
static GstStateChangeReturn
gst_gtk_base_sink_change_state (GstElement * element, GstStateChange transition)
{
GstGtkBaseSink *gtk_sink = GST_GTK_BASE_SINK (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GST_DEBUG_OBJECT (element, "changing state: %s => %s",
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
{
GtkWindow *window = NULL;
GST_OBJECT_LOCK (gtk_sink);
if (gtk_sink->window)
window = g_object_ref (gtk_sink->window);
GST_OBJECT_UNLOCK (gtk_sink);
if (window)
gst_gtk_invoke_on_main ((GThreadFunc) gst_gtk_widget_show_all_and_unref,
window);
break;
}
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_OBJECT_LOCK (gtk_sink);
if (gtk_sink->widget)
gtk_gst_base_widget_set_buffer (gtk_sink->widget, NULL);
GST_OBJECT_UNLOCK (gtk_sink);
break;
default:
break;
}
return ret;
}
static void
gst_gtk_base_sink_get_times (GstBaseSink * bsink, GstBuffer * buf,
GstClockTime * start, GstClockTime * end)
{
GstGtkBaseSink *gtk_sink;
gtk_sink = GST_GTK_BASE_SINK (bsink);
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
*start = GST_BUFFER_TIMESTAMP (buf);
if (GST_BUFFER_DURATION_IS_VALID (buf))
*end = *start + GST_BUFFER_DURATION (buf);
else {
if (GST_VIDEO_INFO_FPS_N (&gtk_sink->v_info) > 0) {
*end = *start +
gst_util_uint64_scale_int (GST_SECOND,
GST_VIDEO_INFO_FPS_D (&gtk_sink->v_info),
GST_VIDEO_INFO_FPS_N (&gtk_sink->v_info));
}
}
}
}
gboolean
gst_gtk_base_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
{
GstGtkBaseSink *gtk_sink = GST_GTK_BASE_SINK (bsink);
GST_DEBUG ("set caps with %" GST_PTR_FORMAT, caps);
if (!gst_video_info_from_caps (&gtk_sink->v_info, caps))
return FALSE;
GST_OBJECT_LOCK (gtk_sink);
if (gtk_sink->widget == NULL) {
GST_OBJECT_UNLOCK (gtk_sink);
GST_ELEMENT_ERROR (gtk_sink, RESOURCE, NOT_FOUND,
("%s", "Output widget was destroyed"), (NULL));
return FALSE;
}
if (!gtk_gst_base_widget_set_format (gtk_sink->widget, &gtk_sink->v_info)) {
GST_OBJECT_UNLOCK (gtk_sink);
return FALSE;
}
GST_OBJECT_UNLOCK (gtk_sink);
return TRUE;
}
static GstFlowReturn
gst_gtk_base_sink_show_frame (GstVideoSink * vsink, GstBuffer * buf)
{
GstGtkBaseSink *gtk_sink;
GST_TRACE ("rendering buffer:%p", buf);
gtk_sink = GST_GTK_BASE_SINK (vsink);
GST_OBJECT_LOCK (vsink);
if (gtk_sink->widget == NULL) {
GST_OBJECT_UNLOCK (gtk_sink);
GST_ELEMENT_ERROR (gtk_sink, RESOURCE, NOT_FOUND,
("%s", "Output widget was destroyed"), (NULL));
return GST_FLOW_ERROR;
}
gtk_gst_base_widget_set_buffer (gtk_sink->widget, buf);
GST_OBJECT_UNLOCK (gtk_sink);
return GST_FLOW_OK;
}
/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@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.
*/
#ifndef __GST_GTK_BASE_SINK_H__
#define __GST_GTK_BASE_SINK_H__
#include <gtk/gtk.h>
#include <gst/gst.h>
#include <gst/video/gstvideosink.h>
#include <gst/video/video.h>
#include "gtkgstbasewidget.h"
#define GST_TYPE_GTK_BASE_SINK (gst_gtk_base_sink_get_type())
#define GST_GTK_BASE_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GTK_BASE_SINK,GstGtkBaseSink))
#define GST_GTK_BASE_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GTK_BASE_SINK,GstGtkBaseSinkClass))
#define GST_GTK_BASE_SINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GTK_BASE_SINK, GstGtkBaseSinkClass))
#define GST_IS_GTK_BASE_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GTK_BASE_SINK))
#define GST_IS_GTK_BASE_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GTK_BASE_SINK))
#define GST_GTK_BASE_SINK_CAST(obj) ((GstGtkBaseSink*)(obj))
G_BEGIN_DECLS
typedef struct _GstGtkBaseSink GstGtkBaseSink;
typedef struct _GstGtkBaseSinkClass GstGtkBaseSinkClass;
GType gst_gtk_base_sink_get_type (void);
/**
* GstGtkBaseSink:
*
* Opaque #GstGtkBaseSink object
*/
struct _GstGtkBaseSink
{
/* <private> */
GstVideoSink parent;
GstVideoInfo v_info;
GtkGstBaseWidget *widget;
/* properties */
gboolean force_aspect_ratio;
GBinding *bind_aspect_ratio;
gint par_n;
gint par_d;
GBinding *bind_pixel_aspect_ratio;
gboolean ignore_alpha;
GBinding *bind_ignore_alpha;
GtkWidget *window;
gulong widget_destroy_id;
gulong window_destroy_id;
};
/**
* GstGtkBaseSinkClass:
*
* The #GstGtkBaseSinkClass struct only contains private data
*/
struct _GstGtkBaseSinkClass
{
GstVideoSinkClass object_class;
/* metadata */
const gchar *window_title;
/* virtuals */
GtkWidget* (*create_widget) (void);
};
G_END_DECLS
#endif /* __GST_GTK_BASE_SINK_H__ */
/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@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.