gstreamer/ges/ges-timeline-file-source.c
Thibault Saunier 3ca5e7bcaa ges: Let user set TimelineObject URI while not containing any TrackObject
In the case of not properly set uri, we can keep using the same
TimelineFileSource changing its URI until its TrackObject could be created.

This is particularly usefull in the case of formatter trying to load filesource
when the file has been moved
2012-01-11 11:56:17 -03:00

428 lines
12 KiB
C

/* GStreamer Editing Services
* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
* 2009 Nokia Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
/**
* SECTION:ges-timeline-filesource
* @short_description: An object for manipulating media files in a GESTimeline
*
* Represents all the output streams from a particular uri. It is assumed that
* the URI points to a file of some type.
*/
#include "ges-internal.h"
#include "ges-timeline-file-source.h"
#include "ges-timeline-source.h"
#include "ges-track-filesource.h"
#include "ges-track-image-source.h"
#include "ges-track-audio-test-source.h"
G_DEFINE_TYPE (GESTimelineFileSource, ges_timeline_filesource,
GES_TYPE_TIMELINE_SOURCE);
struct _GESTimelineFileSourcePrivate
{
gchar *uri;
gboolean mute;
gboolean is_image;
guint64 maxduration;
};
enum
{
PROP_0,
PROP_URI,
PROP_MAX_DURATION,
PROP_MUTE,
PROP_IS_IMAGE,
};
static GESTrackObject
* ges_timeline_filesource_create_track_object (GESTimelineObject * obj,
GESTrack * track);
void
ges_timeline_filesource_set_uri (GESTimelineFileSource * self, gchar * uri);
static void
ges_timeline_filesource_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GESTimelineFileSourcePrivate *priv = GES_TIMELINE_FILE_SOURCE (object)->priv;
switch (property_id) {
case PROP_URI:
g_value_set_string (value, priv->uri);
break;
case PROP_MUTE:
g_value_set_boolean (value, priv->mute);
break;
case PROP_MAX_DURATION:
g_value_set_uint64 (value, priv->maxduration);
break;
case PROP_IS_IMAGE:
g_value_set_boolean (value, priv->is_image);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_timeline_filesource_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GESTimelineFileSource *tfs = GES_TIMELINE_FILE_SOURCE (object);
switch (property_id) {
case PROP_URI:
ges_timeline_filesource_set_uri (tfs, g_value_dup_string (value));
break;
case PROP_MUTE:
ges_timeline_filesource_set_mute (tfs, g_value_get_boolean (value));
break;
case PROP_MAX_DURATION:
ges_timeline_filesource_set_max_duration (tfs,
g_value_get_uint64 (value));
break;
case PROP_IS_IMAGE:
ges_timeline_filesource_set_is_image (tfs, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_timeline_filesource_finalize (GObject * object)
{
GESTimelineFileSourcePrivate *priv = GES_TIMELINE_FILE_SOURCE (object)->priv;
if (priv->uri)
g_free (priv->uri);
G_OBJECT_CLASS (ges_timeline_filesource_parent_class)->finalize (object);
}
static void
ges_timeline_filesource_class_init (GESTimelineFileSourceClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GESTimelineObjectClass *timobj_class = GES_TIMELINE_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (GESTimelineFileSourcePrivate));
object_class->get_property = ges_timeline_filesource_get_property;
object_class->set_property = ges_timeline_filesource_set_property;
object_class->finalize = ges_timeline_filesource_finalize;
/**
* GESTimelineFileSource:uri:
*
* The location of the file/resource to use.
*/
g_object_class_install_property (object_class, PROP_URI,
g_param_spec_string ("uri", "URI", "uri of the resource",
NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTimelineFileSource:max-duration:
*
* The maximum duration (in nanoseconds) of the file.
*
* If not set before adding the object to a layer, it will be discovered
* asynchronously. Connect to 'notify::max-duration' to be notified of it.
*/
g_object_class_install_property (object_class, PROP_MAX_DURATION,
g_param_spec_uint64 ("max-duration", "Maximum duration",
"The duration of the file", 0, G_MAXUINT64, GST_CLOCK_TIME_NONE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTimelineFileSource:mute:
*
* Whether the sound will be played or not.
*/
g_object_class_install_property (object_class, PROP_MUTE,
g_param_spec_boolean ("mute", "Mute", "Mute audio track",
FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTimelineFileSource:is-image:
*
* Whether this filesource represents a still image or not. This must be set
* before create_track_objects is called.
*/
g_object_class_install_property (object_class, PROP_IS_IMAGE,
g_param_spec_boolean ("is-image", "Is still image",
"Whether the timeline object represents a still image or not",
FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
timobj_class->create_track_object =
ges_timeline_filesource_create_track_object;
timobj_class->need_fill_track = FALSE;
}
static void
ges_timeline_filesource_init (GESTimelineFileSource * self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
GES_TYPE_TIMELINE_FILE_SOURCE, GESTimelineFileSourcePrivate);
/* Setting the duration to -1 by default. */
GES_TIMELINE_OBJECT (self)->duration = GST_CLOCK_TIME_NONE;
}
/**
* ges_timeline_filesource_set_mute:
* @self: the #GESTimelineFileSource on which to mute or unmute the audio track
* @mute: %TRUE to mute @self audio track, %FALSE to unmute it
*
* Sets whether the audio track of this timeline object is muted or not.
*
*/
void
ges_timeline_filesource_set_mute (GESTimelineFileSource * self, gboolean mute)
{
GList *tmp, *trackobjects;
GESTimelineObject *object = (GESTimelineObject *) self;
GST_DEBUG ("self:%p, mute:%d", self, mute);
self->priv->mute = mute;
/* Go over tracked objects, and update 'active' status on all audio objects */
trackobjects = ges_timeline_object_get_track_objects (object);
for (tmp = trackobjects; tmp; tmp = tmp->next) {
GESTrackObject *trackobject = (GESTrackObject *) tmp->data;
if (ges_track_object_get_track (trackobject)->type == GES_TRACK_TYPE_AUDIO)
ges_track_object_set_active (trackobject, !mute);
g_object_unref (GES_TRACK_OBJECT (tmp->data));
}
g_list_free (trackobjects);
}
/**
* ges_timeline_filesource_set_max_duration:
* @self: the #GESTimelineFileSource to set the maximum duration on
* @maxduration: the maximum duration of @self
*
* Sets the maximum duration (in nanoseconds) of the file.
*
*/
void
ges_timeline_filesource_set_max_duration (GESTimelineFileSource * self,
guint64 maxduration)
{
GESTimelineObject *object = GES_TIMELINE_OBJECT (self);
GList *tmp, *tckobjs;
self->priv->maxduration = maxduration;
if (object->duration == GST_CLOCK_TIME_NONE || object->duration == 0) {
/* If we don't have a valid duration, use the max duration */
g_object_set (self, "duration", self->priv->maxduration - object->inpoint,
NULL);
}
tckobjs = ges_timeline_object_get_track_objects (GES_TIMELINE_OBJECT (self));
for (tmp = tckobjs; tmp; tmp = g_list_next (tmp)) {
g_object_set (tmp->data, "max-duration", maxduration, NULL);
/* We free the list in the same loop */
g_object_unref (tmp->data);
g_list_free_1 (tmp);
}
}
/**
* ges_timeline_filesource_set_supported_formats:
* @self: the #GESTimelineFileSource to set supported formats on
* @supportedformats: the #GESTrackType defining formats supported by @self
*
* Sets the formats supported by the file.
*
*/
void
ges_timeline_filesource_set_supported_formats (GESTimelineFileSource * self,
GESTrackType supportedformats)
{
ges_timeline_object_set_supported_formats (GES_TIMELINE_OBJECT (self),
supportedformats);
}
/**
* ges_timeline_filesource_set_is_image:
* @self: the #GESTimelineFileSource
* @is_image: %TRUE if @self is a still image, %FALSE otherwise
*
* Sets whether the timeline object is a still image or not.
*/
void
ges_timeline_filesource_set_is_image (GESTimelineFileSource * self,
gboolean is_image)
{
self->priv->is_image = is_image;
}
/**
* ges_timeline_filesource_is_muted:
* @self: the #GESTimelineFileSource
*
* Lets you know if the audio track of @self is muted or not.
*
* Returns: %TRUE if the audio track of @self is muted, %FALSE otherwise.
*/
gboolean
ges_timeline_filesource_is_muted (GESTimelineFileSource * self)
{
return self->priv->mute;
}
/**
* ges_timeline_filesource_get_max_duration:
* @self: the #GESTimelineFileSource
*
* Get the duration of the object.
*
* Returns: The duration of @self.
*/
guint64
ges_timeline_filesource_get_max_duration (GESTimelineFileSource * self)
{
return self->priv->maxduration;
}
/**
* ges_timeline_filesource_is_image:
* @self: the #GESTimelineFileSource
*
* Lets you know if @self is an image or not.
*
* Returns: %TRUE if @self is a still image %FALSE otherwise.
*/
gboolean
ges_timeline_filesource_is_image (GESTimelineFileSource * self)
{
return self->priv->is_image;
}
/**
* ges_timeline_filesource_get_uri:
* @self: the #GESTimelineFileSource
*
* Get the location of the resource.
*
* Returns: The location of the resource.
*/
const gchar *
ges_timeline_filesource_get_uri (GESTimelineFileSource * self)
{
return self->priv->uri;
}
/**
* ges_timeline_filesource_get_supported_formats:
* @self: the #GESTimelineFileSource
*
* Get the formats supported by @self.
*
* Returns: The formats supported by @self.
*/
GESTrackType
ges_timeline_filesource_get_supported_formats (GESTimelineFileSource * self)
{
return ges_timeline_object_get_supported_formats (GES_TIMELINE_OBJECT (self));
}
static GESTrackObject *
ges_timeline_filesource_create_track_object (GESTimelineObject * obj,
GESTrack * track)
{
GESTimelineFileSourcePrivate *priv = GES_TIMELINE_FILE_SOURCE (obj)->priv;
GESTrackObject *res;
if (!(ges_timeline_object_get_supported_formats (obj) & track->type)) {
GST_DEBUG ("We don't support this track format");
return NULL;
}
if (priv->is_image) {
if (track->type != GES_TRACK_TYPE_VIDEO) {
GST_DEBUG ("Object is still image, not adding any audio source");
return NULL;
} else {
GST_DEBUG ("Creating a GESTrackImageSource");
res = (GESTrackObject *) ges_track_image_source_new (priv->uri);
}
}
else {
GST_DEBUG ("Creating a GESTrackFileSource");
/* FIXME : Implement properly ! */
res = (GESTrackObject *) ges_track_filesource_new (priv->uri);
/* If mute and track is audio, deactivate the track object */
if (track->type == GES_TRACK_TYPE_AUDIO && priv->mute)
ges_track_object_set_active (res, FALSE);
}
return res;
}
/**
* ges_timeline_filesource_new:
* @uri: the URI the source should control
*
* Creates a new #GESTimelineFileSource for the provided @uri.
*
* Returns: The newly created #GESTimelineFileSource, or NULL if there was an
* error.
*/
GESTimelineFileSource *
ges_timeline_filesource_new (gchar * uri)
{
GESTimelineFileSource *res = NULL;
if (gst_uri_is_valid (uri))
res = g_object_new (GES_TYPE_TIMELINE_FILE_SOURCE, "uri", uri, NULL);
return res;
}
void
ges_timeline_filesource_set_uri (GESTimelineFileSource * self, gchar * uri)
{
GESTimelineObject *tlobj = GES_TIMELINE_OBJECT (self);
GList *tckobjs = ges_timeline_object_get_track_objects (tlobj);
if (tckobjs) {
/* FIXME handle this case properly */
GST_WARNING_OBJECT (tlobj, "Can not change uri when already"
"containing TrackObjects");
return;
}
self->priv->uri = uri;
}