diff options
Diffstat (limited to 'extensions/audio-video-properties/totem-properties-view.c')
| -rw-r--r-- | extensions/audio-video-properties/totem-properties-view.c | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/extensions/audio-video-properties/totem-properties-view.c b/extensions/audio-video-properties/totem-properties-view.c new file mode 100644 index 0000000..5957d05 --- /dev/null +++ b/extensions/audio-video-properties/totem-properties-view.c @@ -0,0 +1,416 @@ +/* + * Copyright (C) 2003 Andrew Sobala <aes@gnome.org> + * Copyright (C) 2004 Bastien Nocera <hadess@hadess.net> + * + * 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 <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 <math.h> + +struct TotemPropertiesViewPriv { + NautilusPropertiesModel *model; + GListStore *store; + GstDiscoverer *disco; +}; + +static GObjectClass *parent_class = NULL; +static void totem_properties_view_finalize (GObject *object); + +G_DEFINE_TYPE (TotemPropertiesView, totem_properties_view, G_TYPE_OBJECT) + +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 +append_item (TotemPropertiesView *props, + const char *name, + const char *value) +{ + g_autoptr (NautilusPropertiesItem) item = NULL; + + item = nautilus_properties_item_new (name, value); + + g_list_store_append (props->priv->store, item); +} + +/* Copied from bacon-video-widget-properties.c + * Copyright (C) 2002 Bastien Nocera + */ +static char * +time_to_string_text (gint64 msecs) +{ + char *secs, *mins, *hours, *string; + int sec, min, hour, _time; + + _time = (int) (msecs / 1000); + sec = _time % 60; + _time = _time - sec; + min = (_time % (60*60)) / 60; + _time = _time - (min * 60); + hour = _time / (60*60); + + hours = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE, "%d hour", "%d hours", hour), hour); + + mins = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE, "%d minute", + "%d minutes", min), min); + + secs = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE, "%d second", + "%d seconds", sec), sec); + + if (hour > 0) + { + /* 5 hours 2 minutes 12 seconds */ + string = g_strdup_printf (C_("time", "%s %s %s"), hours, mins, secs); + } else if (min > 0) { + /* 2 minutes 12 seconds */ + string = g_strdup_printf (C_("time", "%s %s"), mins, secs); + } else if (sec > 0) { + /* 10 seconds */ + string = g_strdup (secs); + } else { + /* 0 seconds */ + string = g_strdup (_("0 seconds")); + } + + g_free (hours); + g_free (mins); + g_free (secs); + + return string; +} + +static void +update_general (TotemPropertiesView *props, + const GstTagList *list) +{ + struct { + const char *tag_name; + const char *title; + } items[] = { + { GST_TAG_TITLE, N_("Title") }, + { GST_TAG_ARTIST, N_("Artist") }, + { GST_TAG_ALBUM, N_("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) { + append_item (props, gettext (items[i].title), 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)) { + + append_item (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); + append_item (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); + append_item (props, _("Year"), string); + g_free (string); + } +} + +static void +set_codec (TotemPropertiesView *props, + GstDiscovererStreamInfo *info, + const char *title) +{ + 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) + 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); + append_item (props, title, string); + g_free (string); + } + gst_caps_unref (caps); + } +} + +static void +set_bitrate (TotemPropertiesView *props, + guint bitrate, + const char *title) +{ + char *string; + + if (!bitrate) { + return; + } + string = g_strdup_printf (_("%d kbps"), bitrate / 1000); + append_item (props, title, string); + g_free (string); +} + +static void +update_video (TotemPropertiesView *props, + GstDiscovererVideoInfo *info) +{ + guint width, height; + guint fps_n, fps_d; + float framerate = 0.0; + 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); + append_item (props, _("Dimensions"), string); + g_free (string); + + set_codec (props, (GstDiscovererStreamInfo *) info, _("Video Codec")); + set_bitrate (props, gst_discoverer_video_info_get_bitrate (info), _("Video Bit Rate")); + + /* 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) { + framerate = (float) fps_n / (float) fps_d; + } + + if (framerate > 1.0) { + string = g_strdup_printf (g_dngettext (GETTEXT_PACKAGE, + "%0.2f frame per second", + "%0.2f frames per second", + (int) (ceilf (framerate))), + framerate); + append_item (props, _("Frame Rate"), string); + g_free (string); + } +} + +static void +update_audio (TotemPropertiesView *props, + GstDiscovererAudioInfo *info) +{ + guint samplerate, channels; + + set_codec (props, (GstDiscovererStreamInfo *) info, _("Audio Codec")); + + set_bitrate (props, gst_discoverer_audio_info_get_bitrate (info), _("Audio Bit Rate")); + + samplerate = gst_discoverer_audio_info_get_sample_rate (info); + if (samplerate) { + char *string; + string = g_strdup_printf (_("%d Hz"), samplerate); + append_item (props, _("Sample Rate"), string); + g_free (string); + } + + 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 + } + append_item (props, _("Channels"), string); + g_free (string); + } +} + +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; + g_autofree char *duration_string = NULL; + GstDiscovererStreamInfo *sinfo; + + if (error) { + g_warning ("Couldn't get information about '%s': %s", + gst_discoverer_info_get_uri (info), + error->message); + append_item (props, _("Oops! Something went wrong."), 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 = _("Audio and Video Properties"); + else if (has_audio) + label = _("Audio Properties"); + else + label = _("Video Properties"); + + nautilus_properties_model_set_title (props->priv->model, label); + + /* General */ + duration = gst_discoverer_info_get_duration (info); + duration_string = time_to_string_text (duration / GST_SECOND * 1000); + append_item (props, _("Duration"), duration_string); + + 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->store = g_list_store_new (NAUTILUS_TYPE_PROPERTIES_ITEM); + + props->priv->model = nautilus_properties_model_new (_("Audio/Video Properties"), + G_LIST_MODEL (props->priv->store)); + + 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_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); + + 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; + } + } +} + +NautilusPropertiesModel * +totem_properties_view_new (const char *location) +{ + TotemPropertiesView *props; + + props = g_object_new (TOTEM_TYPE_PROPERTIES_VIEW, NULL); + + totem_properties_view_set_location (props, location); + + g_object_weak_ref (G_OBJECT (props->priv->model), (GWeakNotify) g_object_unref, props); + + return props->priv->model; +} |