add audio-video-properties plugin

1 files changed, 389 insertions, 0 deletions

diff --git a/audio-video-properties/totem-properties-view.c b/audio-video-properties/totem-properties-view.c
new file mode 100644
index 0000000..8bae081
--- /dev/null
+++ b/audio-video-properties/totem-properties-view.c
@@ -0,0 +1,389 @@
+/*
+ * Copyright (C) 2003  Andrew Sobala <[email protected]>
+ * Copyright (C) 2004  Bastien Nocera <[email protected]>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <config.h>
+
+#include <gtk/gtk.h>
+#include <glib/gi18n-lib.h>
+
+#define GST_USE_UNSTABLE_API 1
+#include <gst/tag/tag.h>
+#include <gst/pbutils/pbutils.h>
+
+#include "totem-properties-view.h"
+#include "bacon-video-widget-properties.h"
+
+struct TotemPropertiesViewPriv {
+	GtkWidget *label;
+	GtkWidget *vbox;
+	BaconVideoWidgetProperties *props;
+	GstDiscoverer *disco;
+};
+
+static GObjectClass *parent_class = NULL;
+static void totem_properties_view_finalize (GObject *object);
+
+G_DEFINE_TYPE (TotemPropertiesView, totem_properties_view, GTK_TYPE_GRID)
+
+void
+totem_properties_view_register_type (GTypeModule *module)
+{
+	totem_properties_view_get_type ();
+}
+
+static void
+totem_properties_view_class_init (TotemPropertiesViewClass *class)
+{
+	parent_class = g_type_class_peek_parent (class);
+	G_OBJECT_CLASS (class)->finalize = totem_properties_view_finalize;
+}
+
+static void
+update_general (TotemPropertiesView *props,
+		const GstTagList    *list)
+{
+	struct {
+		const char *tag_name;
+		const char *widget;
+	} items[] = {
+		{ GST_TAG_TITLE, "title" },
+		{ GST_TAG_ARTIST, "artist" },
+		{ GST_TAG_ALBUM, "album" },
+	};
+	guint i;
+        GDate *date;
+	GstDateTime *datetime;
+	gchar *comment;
+
+	for (i = 0; i < G_N_ELEMENTS(items); i++) {
+		char *string;
+
+		if (gst_tag_list_get_string_index (list, items[i].tag_name, 0, &string) != FALSE) {
+			bacon_video_widget_properties_set_label (props->priv->props,
+								 items[i].widget,
+								 string);
+			g_free (string);
+		}
+	}
+
+	/* Comment else use Description defined by:
+	 * http://xiph.org/vorbis/doc/v-comment.html */
+	if (gst_tag_list_get_string (list, GST_TAG_COMMENT, &comment) ||
+		gst_tag_list_get_string (list, GST_TAG_DESCRIPTION, &comment)) {
+
+		bacon_video_widget_properties_set_label (props->priv->props,
+							 "comment",
+							 comment);
+		g_free (comment);
+        }
+
+	/* Date */
+        if (gst_tag_list_get_date (list, GST_TAG_DATE, &date)) {
+		char *string;
+
+		string = g_strdup_printf ("%d", g_date_get_year (date));
+		g_date_free (date);
+		bacon_video_widget_properties_set_label (props->priv->props,
+							 "year",
+							 string);
+		g_free (string);
+        } else if (gst_tag_list_get_date_time (list, GST_TAG_DATE_TIME, &datetime)) {
+		char *string;
+
+		string = g_strdup_printf ("%d", gst_date_time_get_year (datetime));
+		gst_date_time_unref (datetime);
+		bacon_video_widget_properties_set_label (props->priv->props,
+							 "year",
+							 string);
+		g_free (string);
+	}
+}
+
+static void
+set_codec (TotemPropertiesView     *props,
+	   GstDiscovererStreamInfo *info,
+	   const char              *widget)
+{
+	GstCaps *caps;
+	const char *nick;
+
+	nick = gst_discoverer_stream_info_get_stream_type_nick (info);
+	if (g_str_equal (nick, "audio") == FALSE &&
+	    g_str_equal (nick, "video") == FALSE &&
+	    g_str_equal (nick, "container") == FALSE) {
+		bacon_video_widget_properties_set_label (props->priv->props,
+							 widget,
+							 _("N/A"));
+		return;
+	}
+
+	caps = gst_discoverer_stream_info_get_caps (info);
+	if (caps) {
+		if (gst_caps_is_fixed (caps)) {
+			char *string;
+
+			string = gst_pb_utils_get_codec_description (caps);
+			bacon_video_widget_properties_set_label (props->priv->props,
+								 widget,
+								 string);
+			g_free (string);
+		}
+		gst_caps_unref (caps);
+	}
+}
+
+static void
+set_bitrate (TotemPropertiesView    *props,
+	     guint                   bitrate,
+	     const char             *widget)
+{
+	char *string;
+
+	if (!bitrate) {
+		bacon_video_widget_properties_set_label (props->priv->props,
+							 widget,
+							 C_("Stream bit rate", "N/A"));
+		return;
+	}
+	string = g_strdup_printf (_("%d kbps"), bitrate / 1000);
+	bacon_video_widget_properties_set_label (props->priv->props,
+						 widget,
+						 string);
+	g_free (string);
+}
+
+static void
+update_video (TotemPropertiesView    *props,
+	      GstDiscovererVideoInfo *info)
+{
+	guint width, height;
+	guint fps_n, fps_d;
+	char *string;
+
+	width = gst_discoverer_video_info_get_width (info);
+	height = gst_discoverer_video_info_get_height (info);
+	string = g_strdup_printf (N_("%d × %d"), width, height);
+	bacon_video_widget_properties_set_label (props->priv->props,
+						 "dimensions",
+						 string);
+	g_free (string);
+
+	set_codec (props, (GstDiscovererStreamInfo *) info, "vcodec");
+	set_bitrate (props, gst_discoverer_video_info_get_bitrate (info), "video_bitrate");
+
+	/* Round up/down to the nearest integer framerate */
+	fps_n = gst_discoverer_video_info_get_framerate_num (info);
+	fps_d = gst_discoverer_video_info_get_framerate_denom (info);
+	if (fps_d > 0.0)
+		bacon_video_widget_properties_set_framerate (props->priv->props,
+							     (float) fps_n / (float) fps_d);
+	else
+		bacon_video_widget_properties_set_framerate (props->priv->props, 0.0);
+}
+
+static void
+update_audio (TotemPropertiesView    *props,
+	      GstDiscovererAudioInfo *info)
+{
+	guint samplerate, channels;
+
+	set_codec (props, (GstDiscovererStreamInfo *) info, "acodec");
+
+	set_bitrate (props, gst_discoverer_audio_info_get_bitrate (info), "audio_bitrate");
+
+	samplerate = gst_discoverer_audio_info_get_sample_rate (info);
+	if (samplerate) {
+		char *string;
+		string = g_strdup_printf (_("%d Hz"), samplerate);
+		bacon_video_widget_properties_set_label (props->priv->props,
+							 "samplerate",
+							 string);
+		g_free (string);
+	} else {
+		bacon_video_widget_properties_set_label (props->priv->props,
+							 "samplerate",
+							 C_("Sample rate", "N/A"));
+	}
+
+	channels = gst_discoverer_audio_info_get_channels (info);
+	if (channels) {
+		char *string;
+
+		if (channels > 2) {
+			string = g_strdup_printf ("%s %d.1", _("Surround"), channels - 1);
+		} else if (channels == 1) {
+			string = g_strdup (_("Mono"));
+		} else if (channels == 2) {
+			string = g_strdup (_("Stereo"));
+		} else {
+			string = g_strdup (""); //Should not happen
+		}
+		bacon_video_widget_properties_set_label (props->priv->props,
+							 "channels",
+							 string);
+		g_free (string);
+	} else {
+		bacon_video_widget_properties_set_label (props->priv->props,
+							 "channels",
+							 C_("Number of audio channels", "N/A"));
+	}
+}
+
+static void
+discovered_cb (GstDiscoverer       *discoverer,
+	       GstDiscovererInfo   *info,
+	       GError              *error,
+	       TotemPropertiesView *props)
+{
+	GList *video_streams, *audio_streams;
+	const GstTagList *taglist;
+	gboolean has_audio, has_video;
+	const char *label;
+        GstClockTime duration;
+        GstDiscovererStreamInfo *sinfo;
+
+	if (error) {
+		g_warning ("Couldn't get information about '%s': %s",
+			   gst_discoverer_info_get_uri (info),
+			   error->message);
+		return;
+	}
+
+	video_streams = gst_discoverer_info_get_video_streams (info);
+	has_video = (video_streams != NULL);
+	audio_streams = gst_discoverer_info_get_audio_streams (info);
+	has_audio = (audio_streams != NULL);
+
+	if (has_audio == has_video)
+		label = N_("Audio/Video");
+	else if (has_audio)
+		label = N_("Audio");
+	else
+		label = N_("Video");
+
+	gtk_label_set_text (GTK_LABEL (props->priv->label), _(label));
+
+	/* Widgets */
+	bacon_video_widget_properties_set_has_type (props->priv->props,
+						    has_video,
+						    has_audio);
+
+	/* General */
+        duration = gst_discoverer_info_get_duration (info);
+        bacon_video_widget_properties_set_duration (props->priv->props, duration / GST_SECOND * 1000);
+
+        sinfo = gst_discoverer_info_get_stream_info (info);
+        if (sinfo) {
+		set_codec (props, sinfo, "container");
+		gst_discoverer_stream_info_unref (sinfo);
+	}
+
+	taglist = gst_discoverer_info_get_tags (info);
+	update_general (props, taglist);
+
+	/* Video and Audio */
+	if (video_streams)
+		update_video (props, video_streams->data);
+	if (audio_streams)
+		update_audio (props, audio_streams->data);
+
+	gst_discoverer_stream_info_list_free (video_streams);
+	gst_discoverer_stream_info_list_free (audio_streams);
+}
+
+static void
+totem_properties_view_init (TotemPropertiesView *props)
+{
+	GError *err = NULL;
+
+	props->priv = g_new0 (TotemPropertiesViewPriv, 1);
+
+	props->priv->vbox = bacon_video_widget_properties_new ();
+	gtk_grid_attach (GTK_GRID (props), props->priv->vbox, 0, 0, 1, 1);
+	gtk_widget_show (GTK_WIDGET (props));
+
+	props->priv->props = BACON_VIDEO_WIDGET_PROPERTIES (props->priv->vbox);
+
+	props->priv->disco = gst_discoverer_new (GST_SECOND * 60, &err);
+	if (props->priv->disco == NULL) {
+		g_warning ("Could not create discoverer object: %s", err->message);
+		g_error_free (err);
+		return;
+	}
+	g_signal_connect (props->priv->disco, "discovered",
+			  G_CALLBACK (discovered_cb), props);
+}
+
+static void
+totem_properties_view_finalize (GObject *object)
+{
+	TotemPropertiesView *props;
+
+	props = TOTEM_PROPERTIES_VIEW (object);
+
+	if (props->priv != NULL) {
+		if (props->priv->disco) {
+			g_signal_handlers_disconnect_by_func (props->priv->disco,
+							      discovered_cb,
+							      props);
+			gst_discoverer_stop (props->priv->disco);
+			g_clear_object (&props->priv->disco);
+		}
+		g_clear_object (&props->priv->label);
+		g_free (props->priv);
+	}
+	props->priv = NULL;
+
+	G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+totem_properties_view_set_location (TotemPropertiesView *props,
+				    const char          *location)
+{
+	g_assert (TOTEM_IS_PROPERTIES_VIEW (props));
+
+	if (props->priv->disco)
+		gst_discoverer_stop (props->priv->disco);
+
+	bacon_video_widget_properties_reset (props->priv->props);
+
+	if (location != NULL && props->priv->disco != NULL) {
+		gst_discoverer_start (props->priv->disco);
+
+		if (gst_discoverer_discover_uri_async (props->priv->disco, location) == FALSE) {
+			g_warning ("Couldn't add %s to list", location);
+			return;
+		}
+	}
+}
+
+GtkWidget *
+totem_properties_view_new (const char *location, GtkWidget *label)
+{
+	TotemPropertiesView *self;
+
+	self = g_object_new (TOTEM_TYPE_PROPERTIES_VIEW, NULL);
+	g_object_ref (label);
+	self->priv->label = label;
+	totem_properties_view_set_location (self, location);
+
+	return GTK_WIDGET (self);
+}