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gtkglsink: Port to GstGtkBaseSink base class

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=752441
This commit is contained in:
Nicolas Dufresne 2015-07-16 16:49:32 -04:00
parent 0a4c1d8b52
commit 5584005f96
2 changed files with 64 additions and 394 deletions
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422
ext/gtk/gstgtkglsink.c
View file

@ -28,33 +28,14 @@
#endif
#include "gstgtkglsink.h"
#include "gtkgstglwidget.h"
GST_DEBUG_CATEGORY (gst_debug_gtk_gl_sink);
#define GST_CAT_DEFAULT gst_debug_gtk_gl_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_gl_sink_finalize (GObject * object);
static void gst_gtk_gl_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * param_spec);
static void gst_gtk_gl_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * param_spec);
static gboolean gst_gtk_gl_sink_start (GstBaseSink * bsink);
static gboolean gst_gtk_gl_sink_stop (GstBaseSink * bsink);
static gboolean gst_gtk_gl_sink_query (GstBaseSink * bsink, GstQuery * query);
static GstStateChangeReturn
gst_gtk_gl_sink_change_state (GstElement * element, GstStateChange transition);
static void gst_gtk_gl_sink_get_times (GstBaseSink * bsink, GstBuffer * buf,
GstClockTime * start, GstClockTime * end);
static gboolean gst_gtk_gl_sink_set_caps (GstBaseSink * bsink, GstCaps * caps);
static GstFlowReturn gst_gtk_gl_sink_show_frame (GstVideoSink * bsink,
GstBuffer * buf);
static gboolean gst_gtk_gl_sink_propose_allocation (GstBaseSink * bsink,
GstQuery * query);
@ -65,191 +46,41 @@ GST_STATIC_PAD_TEMPLATE ("sink",
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
(GST_CAPS_FEATURE_MEMORY_GL_MEMORY, "RGBA")));
enum
{
PROP_0,
PROP_WIDGET,
PROP_FORCE_ASPECT_RATIO,
PROP_PIXEL_ASPECT_RATIO,
PROP_IGNORE_ALPHA,
};
enum
{
SIGNAL_0,
LAST_SIGNAL
};
#define gst_gtk_gl_sink_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstGtkGLSink, gst_gtk_gl_sink,
GST_TYPE_VIDEO_SINK, GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_gl_sink,
GST_TYPE_GTK_BASE_SINK, GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_gl_sink,
"gtkglsink", 0, "Gtk Video Sink"));
static void
gst_gtk_gl_sink_class_init (GstGtkGLSinkClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseSinkClass *gstbasesink_class;
GstVideoSinkClass *gstvideosink_class;
GstGtkBaseSinkClass *gstgtkbasesink_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasesink_class = (GstBaseSinkClass *) klass;
gstvideosink_class = (GstVideoSinkClass *) klass;
gstgtkbasesink_class = (GstGtkBaseSinkClass *) klass;
gobject_class->set_property = gst_gtk_gl_sink_set_property;
gobject_class->get_property = gst_gtk_gl_sink_get_property;
gstbasesink_class->query = gst_gtk_gl_sink_query;
gstbasesink_class->propose_allocation = gst_gtk_gl_sink_propose_allocation;
gstbasesink_class->start = gst_gtk_gl_sink_start;
gstbasesink_class->stop = gst_gtk_gl_sink_stop;
gstgtkbasesink_class->create_widget = gtk_gst_gl_widget_new;
gstgtkbasesink_class->window_title = "Gtk+ GL renderer";
gst_element_class_set_metadata (gstelement_class, "Gtk Video Sink",
"Sink/Video", "A video sink that renders to a GtkWidget",
"Matthew Waters <matthew@centricular.com>");
g_object_class_install_property (gobject_class, PROP_WIDGET,
g_param_spec_object ("widget", "Gtk Widget",
"The GtkWidget to place in the widget heirachy",
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));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_gtk_gl_sink_template));
gobject_class->finalize = gst_gtk_gl_sink_finalize;
gstelement_class->change_state = gst_gtk_gl_sink_change_state;
gstbasesink_class->query = gst_gtk_gl_sink_query;
gstbasesink_class->set_caps = gst_gtk_gl_sink_set_caps;
gstbasesink_class->get_times = gst_gtk_gl_sink_get_times;
gstbasesink_class->propose_allocation = gst_gtk_gl_sink_propose_allocation;
gstbasesink_class->stop = gst_gtk_gl_sink_stop;
gstvideosink_class->show_frame = gst_gtk_gl_sink_show_frame;
}
static void
gst_gtk_gl_sink_init (GstGtkGLSink * 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_gl_sink_finalize (GObject * object)
{
GstGtkGLSink *gtk_sink = GST_GTK_GL_SINK (object);;
g_clear_object (&gtk_sink->widget);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
widget_destroy_cb (GtkWidget * widget, GstGtkGLSink * gtk_sink)
{
GST_OBJECT_LOCK (gtk_sink);
g_clear_object (&gtk_sink->widget);
GST_OBJECT_UNLOCK (gtk_sink);
}
static GtkGstBaseWidget *
gst_gtk_gl_sink_get_widget (GstGtkGLSink * 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;
}
gtk_sink->widget = (GtkGstBaseWidget *) gtk_gst_gl_widget_new ();
gtk_sink->bind_force_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, otherwise the destruction of the container will
* make this widget disapear possibly before we are done. */
gst_object_ref_sink (gtk_sink->widget);
g_signal_connect (gtk_sink->widget, "destroy",
G_CALLBACK (widget_destroy_cb), gtk_sink);
return gtk_sink->widget;
}
static void
gst_gtk_gl_sink_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstGtkGLSink *gtk_sink;
gtk_sink = GST_GTK_GL_SINK (object);
switch (prop_id) {
case PROP_WIDGET:
g_value_set_object (value, gst_gtk_gl_sink_get_widget (gtk_sink));
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_gl_sink_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGtkGLSink *gtk_sink = GST_GTK_GL_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 gboolean
@ -263,9 +94,8 @@ gst_gtk_gl_sink_query (GstBaseSink * bsink, GstQuery * query)
{
const gchar *context_type;
GstContext *context, *old_context;
gboolean ret;
ret = gst_gl_handle_context_query ((GstElement *) gtk_sink, query,
res = gst_gl_handle_context_query ((GstElement *) gtk_sink, query,
&gtk_sink->display, &gtk_sink->gtk_context);
if (gtk_sink->display)
@ -289,13 +119,11 @@ gst_gtk_gl_sink_query (GstBaseSink * bsink, GstQuery * query)
gst_query_set_context (query, context);
gst_context_unref (context);
ret = gtk_sink->context != NULL;
res = gtk_sink->context != NULL;
}
GST_LOG_OBJECT (gtk_sink, "context query of type %s %i", context_type,
ret);
if (ret)
return ret;
res);
break;
}
default:
res = GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);
@ -306,180 +134,59 @@ gst_gtk_gl_sink_query (GstBaseSink * bsink, GstQuery * query)
}
static gboolean
gst_gtk_gl_sink_stop (GstBaseSink * bsink)
gst_gtk_gl_sink_start (GstBaseSink * bsink)
{
GstGtkBaseSink *base_sink = GST_GTK_BASE_SINK (bsink);
GstGtkGLSink *gtk_sink = GST_GTK_GL_SINK (bsink);
GtkGstGLWidget *gst_widget;
if (!GST_BASE_SINK_CLASS (parent_class)->start (bsink))
return FALSE;
/* After this point, gtk_sink->widget will always be set */
gst_widget = GTK_GST_GL_WIDGET (base_sink->widget);
if (!gtk_gst_gl_widget_init_winsys (gst_widget))
return FALSE;
gtk_sink->display = gtk_gst_gl_widget_get_display (gst_widget);
gtk_sink->context = gtk_gst_gl_widget_get_context (gst_widget);
gtk_sink->gtk_context = gtk_gst_gl_widget_get_gtk_context (gst_widget);
if (!gtk_sink->display || !gtk_sink->context || !gtk_sink->gtk_context)
return FALSE;
return TRUE;
}
static GstStateChangeReturn
gst_gtk_gl_sink_change_state (GstElement * element, GstStateChange transition)
{
GstGtkGLSink *gtk_sink = GST_GTK_GL_SINK (element);
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GtkWidget *toplevel;
GST_DEBUG ("changing state: %s => %s",
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:{
GtkGstGLWidget *gst_widget;
if (gst_gtk_gl_sink_get_widget (gtk_sink) == NULL)
return GST_STATE_CHANGE_FAILURE;
/* After this point, gtk_sink->widget will always be set */
gst_widget = GTK_GST_GL_WIDGET (gtk_sink->widget);
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (gst_widget));
if (!gtk_widget_is_toplevel (toplevel)) {
GtkWidget *window;
/* User did not add widget its own UI, let's popup a new GtkWindow to
* make gst-launch-1.0 work. */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size (GTK_WINDOW (window), 640, 480);
gtk_window_set_title (GTK_WINDOW (window), "Gtk+ OpenGL renderer");
gtk_container_add (GTK_CONTAINER (window), toplevel);
gtk_widget_show_all (window);
}
if (!gtk_gst_gl_widget_init_winsys (gst_widget))
return GST_STATE_CHANGE_FAILURE;
gtk_sink->display = gtk_gst_gl_widget_get_display (gst_widget);
gtk_sink->context = gtk_gst_gl_widget_get_context (gst_widget);
gtk_sink->gtk_context = gtk_gst_gl_widget_get_gtk_context (gst_widget);
if (!gtk_sink->display || !gtk_sink->context || !gtk_sink->gtk_context)
return GST_STATE_CHANGE_FAILURE;
break;
}
case GST_STATE_CHANGE_READY_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
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;
case GST_STATE_CHANGE_READY_TO_NULL:
if (gtk_sink->display) {
gst_object_unref (gtk_sink->display);
gtk_sink->display = NULL;
}
if (gtk_sink->context) {
gst_object_unref (gtk_sink->context);
gtk_sink->context = NULL;
}
if (gtk_sink->gtk_context) {
gst_object_unref (gtk_sink->gtk_context);
gtk_sink->gtk_context = NULL;
}
break;
default:
break;
}
return ret;
}
static void
gst_gtk_gl_sink_get_times (GstBaseSink * bsink, GstBuffer * buf,
GstClockTime * start, GstClockTime * end)
{
GstGtkGLSink *gtk_sink;
gtk_sink = GST_GTK_GL_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_gl_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
static gboolean
gst_gtk_gl_sink_stop (GstBaseSink * bsink)
{
GstGtkGLSink *gtk_sink = GST_GTK_GL_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_sink->display) {
gst_object_unref (gtk_sink->display);
gtk_sink->display = NULL;
}
if (!gtk_gst_base_widget_set_caps (gtk_sink->widget, caps))
return FALSE;
if (gtk_sink->context) {
gst_object_unref (gtk_sink->context);
gtk_sink->context = NULL;
}
GST_OBJECT_UNLOCK (gtk_sink);
if (gtk_sink->gtk_context) {
gst_object_unref (gtk_sink->gtk_context);
gtk_sink->gtk_context = NULL;
}
return TRUE;
}
static GstFlowReturn
gst_gtk_gl_sink_show_frame (GstVideoSink * vsink, GstBuffer * buf)
{
GstGtkGLSink *gtk_sink;
GST_TRACE ("rendering buffer:%p", buf);
gtk_sink = GST_GTK_GL_SINK (vsink);
GST_OBJECT_LOCK (vsink);
if (gtk_sink->widget == NULL) {
GST_OBJECT_UNLOCK (vsink);
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 (vsink);
return GST_FLOW_OK;
}
static gboolean
gst_gtk_gl_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
{
GstGtkGLSink *gtk_sink = GST_GTK_GL_SINK (bsink);
GstBufferPool *pool;
GstBufferPool *pool = NULL;
GstStructure *config;
GstCaps *caps;
guint size;
@ -493,27 +200,7 @@ gst_gtk_gl_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
if (caps == NULL)
goto no_caps;
if ((pool = gtk_sink->pool))
gst_object_ref (pool);
if (pool != NULL) {
GstCaps *pcaps;
/* we had a pool, check caps */
GST_DEBUG_OBJECT (gtk_sink, "check existing pool caps");
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL);
if (!gst_caps_is_equal (caps, pcaps)) {
GST_DEBUG_OBJECT (gtk_sink, "pool has different caps");
/* different caps, we can't use this pool */
gst_object_unref (pool);
pool = NULL;
}
gst_structure_free (config);
}
if (pool == NULL && need_pool) {
if (need_pool) {
GstVideoInfo info;
if (!gst_video_info_from_caps (&info, caps))
@ -529,9 +216,8 @@ gst_gtk_gl_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query)
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
if (!gst_buffer_pool_set_config (pool, config))
goto config_failed;
}
/* we need at least 2 buffer because we hold on to the last one */
if (pool) {
/* we need at least 2 buffer because we hold on to the last one */
gst_query_add_allocation_pool (query, pool, size, 2, 0);
gst_object_unref (pool);
}

36
ext/gtk/gstgtkglsink.h
View file

@ -27,14 +27,9 @@
#include <gst/video/video.h>
#include <gst/gl/gl.h>
typedef struct _GstGtkGLSink GstGtkGLSink;
typedef struct _GstGtkGLSinkClass GstGtkGLSinkClass;
#include "gstgtkbasesink.h"
#include <gtkgstglwidget.h>
G_BEGIN_DECLS
GType gst_gtk_gl_sink_get_type (void);
#define GST_TYPE_GTK_GL_SINK (gst_gtk_gl_sink_get_type())
#define GST_GTK_GL_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GTK_GL_SINK,GstGtkGLSink))
#define GST_GTK_GL_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GTK_GL_SINK,GstGtkGLSinkClass))
@ -42,6 +37,13 @@ GType gst_gtk_gl_sink_get_type (void);
#define GST_IS_GTK_GL_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GTK_GL_SINK))
#define GST_GTK_GL_SINK_CAST(obj) ((GstGtkGLSink*)(obj))
G_BEGIN_DECLS
typedef struct _GstGtkGLSink GstGtkGLSink;
typedef struct _GstGtkGLSinkClass GstGtkGLSinkClass;
GType gst_gtk_gl_sink_get_type (void);
/**
* GstGtkGLSink:
*
@ -50,12 +52,7 @@ GType gst_gtk_gl_sink_get_type (void);
struct _GstGtkGLSink
{
/* <private> */
GstVideoSink parent;
GtkGstBaseWidget *widget;
GstVideoInfo v_info;
GstBufferPool *pool;
GstGtkBaseSink parent;
GstGLDisplay *display;
GstGLContext *context;
@ -63,17 +60,6 @@ struct _GstGtkGLSink
GstGLUpload *upload;
GstBuffer *uploaded_buffer;
/* properties */
gboolean force_aspect_ratio;
GBinding *bind_force_aspect_ratio;
gint par_n;
gint par_d;
GBinding *bind_pixel_aspect_ratio;
gboolean ignore_alpha;
GBinding *bind_ignore_alpha;
};
/**
@ -84,11 +70,9 @@ struct _GstGtkGLSink
struct _GstGtkGLSinkClass
{
/* <private> */
GstVideoSinkClass object_class;
GstGtkBaseSinkClass object_class;
};
GstGtkGLSink * gst_gtk_gl_sink_new (void);
G_END_DECLS
#endif /* __GST_GTK_GL_SINK_H__ */