380 lines
8.6 KiB
C
380 lines
8.6 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Authored By Matthew Allum <mallum@openedhand.com>
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*
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* Copyright (C) 2006 OpenedHand
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:clutter-media
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* @short_description: An interface for controlling playback of media data.
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*
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* #ClutterMedia is an interface for controlling playback of media data.
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*/
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#include "config.h"
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#include "clutter-media.h"
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#include "clutter-main.h"
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#include "clutter-enum-types.h"
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#include "clutter-private.h" /* for DBG */
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static void clutter_media_base_init (gpointer g_class);
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GType
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clutter_media_get_type (void)
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{
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static GType media_type = 0;
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if (!media_type)
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{
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static const GTypeInfo media_info =
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{
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sizeof (ClutterMediaInterface),
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clutter_media_base_init,
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NULL,
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};
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media_type = g_type_register_static (G_TYPE_INTERFACE, "ClutterMedia",
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&media_info, 0);
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}
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return media_type;
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}
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static void
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clutter_media_base_init (gpointer g_iface)
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{
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static gboolean initialized = FALSE;
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if (!initialized)
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{
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initialized = TRUE;
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/* props */
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g_object_interface_install_property
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(g_iface,
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g_param_spec_string
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("uri",
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"URI",
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"The loaded URI.",
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NULL,
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G_PARAM_READWRITE |
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G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
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G_PARAM_STATIC_BLURB));
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g_object_interface_install_property
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(g_iface,
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g_param_spec_boolean
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("playing",
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"Playing",
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"TRUE if playing.",
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FALSE,
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G_PARAM_READWRITE |
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G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
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G_PARAM_STATIC_BLURB));
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g_object_interface_install_property
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(g_iface,
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g_param_spec_int
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("position",
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"Position",
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"The position in the current stream in seconds.",
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0, G_MAXINT, 0,
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G_PARAM_READWRITE |
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G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
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G_PARAM_STATIC_BLURB));
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g_object_interface_install_property
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(g_iface,
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g_param_spec_double
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("volume",
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"Volume",
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"The audio volume.",
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0, 100, 50,
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G_PARAM_READWRITE |
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G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
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G_PARAM_STATIC_BLURB));
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g_object_interface_install_property
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(g_iface,
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g_param_spec_boolean
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("can-seek",
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"Can seek",
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"TRUE if the current stream is seekable.",
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FALSE,
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G_PARAM_READABLE |
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G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
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G_PARAM_STATIC_BLURB));
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g_object_interface_install_property
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(g_iface,
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g_param_spec_int
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("buffer-percent",
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"Buffer percent",
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"The percentage the current stream buffer is filled.",
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0, 100, 0,
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G_PARAM_READABLE |
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G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
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G_PARAM_STATIC_BLURB));
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g_object_interface_install_property
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(g_iface,
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g_param_spec_int
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("duration",
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"Duration",
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"The duration of the current stream in seconds.",
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0, G_MAXINT, 0,
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G_PARAM_READABLE |
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G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
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G_PARAM_STATIC_BLURB));
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/* signals */
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g_signal_new ("metadata-available",
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CLUTTER_TYPE_MEDIA,
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (ClutterMediaInterface,
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metadata_available),
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NULL, NULL,
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g_cclosure_marshal_VOID__POINTER,
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G_TYPE_NONE, 1, G_TYPE_POINTER);
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g_signal_new ("eos",
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CLUTTER_TYPE_MEDIA,
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (ClutterMediaInterface,
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eos),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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g_signal_new ("error",
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CLUTTER_TYPE_MEDIA,
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (ClutterMediaInterface,
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error),
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NULL, NULL,
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g_cclosure_marshal_VOID__POINTER,
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G_TYPE_NONE, 1, G_TYPE_POINTER);
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}
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}
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/**
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* clutter_media_set_uri:
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* @media: #ClutterMedia object
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* @uri: Uri
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*
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* Sets the uri of @media to @uri.
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*/
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void
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clutter_media_set_uri (ClutterMedia *media,
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const char *uri)
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{
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g_return_if_fail (CLUTTER_IS_MEDIA(media));
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CLUTTER_MEDIA_GET_INTERFACE (media)->set_uri (media, uri);
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}
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/**
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* clutter_media_get_uri:
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* @media: A #ClutterMedia object
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*
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* Retrieves the URI from @media.
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*
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* Return value: The URI as a string.
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*/
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const char*
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clutter_media_get_uri (ClutterMedia *media)
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{
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g_return_val_if_fail (CLUTTER_IS_MEDIA(media), NULL);
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return CLUTTER_MEDIA_GET_INTERFACE (media)->get_uri (media);
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}
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/**
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* clutter_media_set_playing:
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* @media: A #ClutterMedia object
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* @playing: TRUE to start playing, FALSE to stop.
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*
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* Starts or stops @media playing.
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*/
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void
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clutter_media_set_playing (ClutterMedia *media,
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gboolean playing)
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{
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g_return_if_fail (CLUTTER_IS_MEDIA(media));
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CLUTTER_MEDIA_GET_INTERFACE (media)->set_playing (media, playing);
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}
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/**
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* clutter_media_get_playing:
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* @media: A #ClutterMedia object
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*
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* Retrieves the state of @media.
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*
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* Return value: TRUE if playing, FALSE if stopped.
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*/
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gboolean
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clutter_media_get_playing (ClutterMedia *media)
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{
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g_return_val_if_fail (CLUTTER_IS_MEDIA(media), FALSE);
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return CLUTTER_MEDIA_GET_INTERFACE (media)->get_playing (media);
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}
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/**
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* clutter_media_set_position:
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* @media: A #ClutterMedia object
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* @position: The desired position.
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*
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* Sets the playback position of @media to @position.
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*/
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void
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clutter_media_set_position (ClutterMedia *media,
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int position)
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{
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g_return_if_fail (CLUTTER_IS_MEDIA(media));
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CLUTTER_MEDIA_GET_INTERFACE (media)->set_position (media, position);
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}
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/**
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* clutter_media_get_position:
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* @media: A #ClutterMedia object
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*
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* Retrieves the position of @media.
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*
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* Return value: The playback position.
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*/
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int
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clutter_media_get_position (ClutterMedia *media)
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{
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g_return_val_if_fail (CLUTTER_IS_MEDIA(media), 0);
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return CLUTTER_MEDIA_GET_INTERFACE (media)->get_position (media);
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}
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/**
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* clutter_media_set_volume:
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* @media: A #ClutterMedia object
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* @volume: The volume as a double between 0.0 and 1.0
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*
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* Sets the playback volume of @media to @volume.
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*/
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void
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clutter_media_set_volume (ClutterMedia *media,
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double volume)
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{
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g_return_if_fail (CLUTTER_IS_MEDIA(media));
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CLUTTER_MEDIA_GET_INTERFACE (media)->set_position (media, volume);
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}
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/**
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* clutter_media_get_volume:
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* @media: A #ClutterMedia object
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*
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* Retrieves the playback volume of @media.
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*
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* Return value: The playback volume between 0.0 and 1.0
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*/
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double
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clutter_media_get_volume (ClutterMedia *media)
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{
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g_return_val_if_fail (CLUTTER_IS_MEDIA(media), 0.0);
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return CLUTTER_MEDIA_GET_INTERFACE (media)->get_volume (media);
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}
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/**
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* clutter_media_get_can_seek:
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* @media: A #ClutterMedia object
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*
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* Retrieves whether @media is seekable or not.
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*
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* Return value: TRUE if @media can seek, FALSE otherwise.
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*/
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gboolean
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clutter_media_get_can_seek (ClutterMedia *media)
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{
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g_return_val_if_fail (CLUTTER_IS_MEDIA(media), FALSE);
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return CLUTTER_MEDIA_GET_INTERFACE (media)->can_seek (media);
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}
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/**
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* clutter_media_get_buffer_percent:
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* @media: A #ClutterMedia object
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*
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* Retrieves the amount of the stream that is buffered.
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*
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* Return value: percentage value
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*/
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int
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clutter_media_get_buffer_percent (ClutterMedia *media)
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{
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g_return_val_if_fail (CLUTTER_IS_MEDIA(media), 0);
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return CLUTTER_MEDIA_GET_INTERFACE (media)->get_buffer_percent (media);
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}
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/**
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* clutter_media_get_duration:
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* @media: A #ClutterMedia object
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*
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* Retrieves the duration of the media stream that @media represents.
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*
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* Return value: The length of the media stream.
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*/
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int
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clutter_media_get_duration (ClutterMedia *media)
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{
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g_return_val_if_fail (CLUTTER_IS_MEDIA(media), 0);
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return CLUTTER_MEDIA_GET_INTERFACE (media)->get_duration (media);
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}
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/* helper funcs */
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/**
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* clutter_media_set_filename:
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* @media: A #ClutterMedia object
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* @filename: A filename to media file.
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*
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* Converts a filesystem path to a uri and calls clutter_media_set_uri
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*/
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void
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clutter_media_set_filename (ClutterMedia *media, const gchar *filename)
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{
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gchar *uri;
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if (filename[0] != '/')
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uri = g_strdup_printf ("file://%s/%s", g_get_current_dir (), filename);
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else
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uri = g_strdup_printf ("file://%s", filename);
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clutter_media_set_uri (media, uri);
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g_free(uri);
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}
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