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290 lines
8.8 KiB
C
290 lines
8.8 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 Nokia Corporation
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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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library 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:ges-timeline-filesource
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* @short_description: An object for manipulating media files in a GESTimeline
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*
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* Represents all the output treams from a particular uri. It is assumed that
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* the URI points to a file of some type.
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*/
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#include "ges-internal.h"
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#include "ges-timeline-file-source.h"
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#include "ges-timeline-source.h"
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#include "ges-track-filesource.h"
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#include "ges-track-image-source.h"
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#include "ges-track-audio-test-source.h"
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G_DEFINE_TYPE (GESTimelineFileSource, ges_tl_filesource,
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GES_TYPE_TIMELINE_SOURCE);
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enum
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{
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PROP_0,
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PROP_URI,
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PROP_MAX_DURATION,
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PROP_MUTE,
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PROP_SUPPORTED_FORMATS,
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PROP_IS_IMAGE,
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};
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static void
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ges_tl_filesource_set_mute (GESTimelineFileSource * self, gboolean mute);
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static void
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ges_tl_filesource_set_max_duration (GESTimelineFileSource * self,
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guint64 maxduration);
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static GESTrackObject
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* ges_tl_filesource_create_track_object (GESTimelineObject * obj,
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GESTrack * track);
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static void
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ges_tl_filesource_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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GESTimelineFileSource *tfs = GES_TIMELINE_FILE_SOURCE (object);
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switch (property_id) {
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case PROP_URI:
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g_value_set_string (value, tfs->uri);
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break;
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case PROP_MUTE:
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g_value_set_boolean (value, tfs->mute);
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break;
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case PROP_MAX_DURATION:
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g_value_set_uint64 (value, tfs->maxduration);
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break;
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case PROP_SUPPORTED_FORMATS:
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g_value_set_flags (value, tfs->supportedformats);
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break;
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case PROP_IS_IMAGE:
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g_value_set_boolean (value, tfs->is_image);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ges_tl_filesource_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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GESTimelineFileSource *tfs = GES_TIMELINE_FILE_SOURCE (object);
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switch (property_id) {
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case PROP_URI:
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tfs->uri = g_value_dup_string (value);
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break;
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case PROP_MUTE:
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ges_tl_filesource_set_mute (tfs, g_value_get_boolean (value));
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break;
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case PROP_MAX_DURATION:
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ges_tl_filesource_set_max_duration (tfs, g_value_get_uint64 (value));
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break;
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case PROP_SUPPORTED_FORMATS:
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tfs->supportedformats = g_value_get_flags (value);
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break;
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case PROP_IS_IMAGE:
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tfs->is_image = g_value_get_boolean (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ges_tl_filesource_dispose (GObject * object)
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{
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G_OBJECT_CLASS (ges_tl_filesource_parent_class)->dispose (object);
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}
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static void
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ges_tl_filesource_finalize (GObject * object)
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{
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GESTimelineFileSource *tfs = GES_TIMELINE_FILE_SOURCE (object);
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if (tfs->uri)
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g_free (tfs->uri);
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G_OBJECT_CLASS (ges_tl_filesource_parent_class)->finalize (object);
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}
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static void
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ges_tl_filesource_class_init (GESTimelineFileSourceClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GESTimelineObjectClass *timobj_class = GES_TIMELINE_OBJECT_CLASS (klass);
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object_class->get_property = ges_tl_filesource_get_property;
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object_class->set_property = ges_tl_filesource_set_property;
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object_class->dispose = ges_tl_filesource_dispose;
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object_class->finalize = ges_tl_filesource_finalize;
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/**
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* GESTimelineFileSource:uri:
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*
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* The location of the file/resource to use.
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*/
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g_object_class_install_property (object_class, PROP_URI,
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g_param_spec_string ("uri", "URI", "uri of the resource",
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NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
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/**
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* GESTimelineFileSource:max-duration:
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*
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* The maximum duration (in nanoseconds) of the file.
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*
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* If not set before adding the object to a layer, it will be discovered
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* asynchronously. Connect to 'notify::max-duration' to be notified of it.
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*/
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g_object_class_install_property (object_class, PROP_MAX_DURATION,
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g_param_spec_uint64 ("max-duration", "Maximum duration",
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"The duration of the file", 0, G_MAXUINT64, GST_CLOCK_TIME_NONE,
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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/**
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* GESTimelineFileSource:mute:
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*
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* Whether the sound will be played or not.
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*/
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g_object_class_install_property (object_class, PROP_MUTE,
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g_param_spec_boolean ("mute", "Mute", "Mute audio track",
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FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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/**
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* GESTimelineFileSource:supported-formats:
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*
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* Whether the sound will be played or not.
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*/
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g_object_class_install_property (object_class, PROP_SUPPORTED_FORMATS,
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g_param_spec_flags ("supported-formats", "Supported formats",
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"Formats supported by the file", GES_TYPE_TRACK_TYPE,
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GES_TRACK_TYPE_UNKNOWN, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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/**
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* GESTimelineFileSource:is-image:
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*
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* Whether this filesource represents a still image or not. This must be set
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* before create_track_objects is called.
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*/
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g_object_class_install_property (object_class, PROP_IS_IMAGE,
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g_param_spec_boolean ("is-image", "Is still image",
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"Whether the timeline object represents a still image or not",
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FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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timobj_class->create_track_object = ges_tl_filesource_create_track_object;
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timobj_class->need_fill_track = FALSE;
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}
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static void
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ges_tl_filesource_init (GESTimelineFileSource * self)
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{
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/* Setting the duration to -1 by default. */
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GES_TIMELINE_OBJECT (self)->duration = GST_CLOCK_TIME_NONE;
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}
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static void
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ges_tl_filesource_set_mute (GESTimelineFileSource * self, gboolean mute)
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{
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GList *tmp, *trackobjects;
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GESTimelineObject *object = (GESTimelineObject *) self;
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GST_DEBUG ("self:%p, mute:%d", self, mute);
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self->mute = mute;
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/* Go over tracked objects, and update 'active' status on all audio objects */
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trackobjects = ges_timeline_object_get_track_objects (object);
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for (tmp = trackobjects; tmp; tmp = tmp->next) {
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GESTrackObject *trackobject = (GESTrackObject *) tmp->data;
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if (trackobject->track->type == GES_TRACK_TYPE_AUDIO)
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ges_track_object_set_active (trackobject, !mute);
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g_object_unref (GES_TRACK_OBJECT (tmp->data));
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}
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g_list_free (trackobjects);
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}
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static void
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ges_tl_filesource_set_max_duration (GESTimelineFileSource * self,
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guint64 maxduration)
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{
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GESTimelineObject *object = GES_TIMELINE_OBJECT (self);
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self->maxduration = maxduration;
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if (object->duration == GST_CLOCK_TIME_NONE || object->duration == 0) {
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/* If we don't have a valid duration, use the max duration */
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g_object_set (self, "duration", self->maxduration - object->inpoint, NULL);
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}
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}
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static GESTrackObject *
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ges_tl_filesource_create_track_object (GESTimelineObject * obj,
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GESTrack * track)
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{
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GESTimelineFileSource *tfs = (GESTimelineFileSource *) obj;
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GESTrackObject *res;
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if (!(tfs->supportedformats & track->type)) {
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GST_DEBUG ("We don't support this track format");
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return NULL;
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}
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if (tfs->is_image) {
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if (track->type != GES_TRACK_TYPE_VIDEO) {
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GST_DEBUG ("Object is still image, creating silent audio source");
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res = (GESTrackObject *) ges_track_audio_test_source_new ();
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} else {
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GST_DEBUG ("Creating a GESTrackImageSource");
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res = (GESTrackObject *) ges_track_image_source_new (tfs->uri);
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}
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}
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else {
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GST_DEBUG ("Creating a GESTrackFileSource");
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/* FIXME : Implement properly ! */
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res = (GESTrackObject *) ges_track_filesource_new (tfs->uri);
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/* If mute and track is audio, deactivate the track object */
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if (track->type == GES_TRACK_TYPE_AUDIO && tfs->mute)
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ges_track_object_set_active (res, FALSE);
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}
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return res;
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}
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/**
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* ges_timeline_filesource_new:
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* @uri: the URI the source should control
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*
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* Creates a new #GESTimelineFileSource for the provided @uri.
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*
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* Returns: The newly created #GESTimelineFileSource, or NULL if there was an
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* error.
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*/
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GESTimelineFileSource *
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ges_timeline_filesource_new (gchar * uri)
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{
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/* FIXME : Check for validity/existence of URI */
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return g_object_new (GES_TYPE_TIMELINE_FILE_SOURCE, "uri", uri, NULL);
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}
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