gstreamer/ges/ges-timeline-file-source.c
2012-12-30 23:12:28 -03:00

499 lines
14 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, 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-asset-file-source.h"
#include "ges-asset-track-object.h"
#include "ges-extractable.h"
#include "ges-track-image-source.h"
#include "ges-track-audio-test-source.h"
static void ges_extractable_interface_init (GESExtractableInterface * iface);
G_DEFINE_TYPE_WITH_CODE (GESTimelineFileSource, ges_timeline_filesource,
GES_TYPE_TIMELINE_SOURCE,
G_IMPLEMENT_INTERFACE (GES_TYPE_EXTRACTABLE,
ges_extractable_interface_init));
GESExtractableInterface *parent_extractable_iface;
struct _GESTimelineFileSourcePrivate
{
gchar *uri;
gboolean mute;
gboolean is_image;
};
enum
{
PROP_0,
PROP_URI,
PROP_MUTE,
PROP_IS_IMAGE,
PROP_SUPPORTED_FORMATS,
};
static GList *ges_timeline_filesource_create_track_objects (GESTimelineObject *
obj, GESTrackType type);
static GESTrackObject
* ges_timeline_filesource_create_track_object (GESTimelineObject * obj,
GESTrackType type);
void ges_timeline_filesource_set_uri (GESTimelineFileSource * self,
gchar * uri);
static void
filesource_set_max_duration (GESTimelineObject * object, guint64 maxduration);
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_IS_IMAGE:
g_value_set_boolean (value, priv->is_image);
break;
case PROP_SUPPORTED_FORMATS:
g_value_set_flags (value,
ges_timeline_object_get_supported_formats (GES_TIMELINE_OBJECT
(object)));
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_IS_IMAGE:
ges_timeline_filesource_set_is_image (tfs, g_value_get_boolean (value));
break;
case PROP_SUPPORTED_FORMATS:
ges_timeline_object_set_supported_formats (GES_TIMELINE_OBJECT (tfs),
g_value_get_flags (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_ONLY));
/**
* 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));
/* Redefine the supported formats property so the default value is UNKNOWN
* and not AUDIO | VIDEO */
g_object_class_install_property (object_class, PROP_SUPPORTED_FORMATS,
g_param_spec_flags ("supported-formats",
"Supported formats", "Formats supported by the file",
GES_TYPE_TRACK_TYPE, GES_TRACK_TYPE_UNKNOWN,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
timobj_class->create_track_objects =
ges_timeline_filesource_create_track_objects;
timobj_class->create_track_object =
ges_timeline_filesource_create_track_object;
timobj_class->set_max_duration = filesource_set_max_duration;
timobj_class->need_fill_track = FALSE;
}
static gchar *
extractable_check_id (GType type, const gchar * id)
{
if (gst_uri_is_valid (id))
return g_strdup (id);
return NULL;
}
static GParameter *
extractable_get_parameters_from_id (const gchar * id, guint * n_params)
{
GParameter *params = g_new0 (GParameter, 2);
params[0].name = "uri";
g_value_init (&params[0].value, G_TYPE_STRING);
g_value_set_string (&params[0].value, id);
*n_params = 1;
return params;
}
static gchar *
extractable_get_id (GESExtractable * self)
{
return g_strdup (GES_TIMELINE_FILE_SOURCE (self)->priv->uri);
}
static void
extractable_set_asset (GESExtractable * self, GESAsset * asset)
{
GESTimelineFileSource *tfs = GES_TIMELINE_FILE_SOURCE (self);
GESAssetFileSource *filesource_asset = GES_ASSET_FILESOURCE (asset);
GESTimelineObject *tlobj = GES_TIMELINE_OBJECT (self);
if (GST_CLOCK_TIME_IS_VALID (tlobj->duration) == FALSE)
ges_timeline_object_set_duration (GES_TIMELINE_OBJECT (tfs),
ges_asset_filesource_get_duration (filesource_asset));
ges_timeline_filesource_set_max_duration (tfs,
ges_asset_filesource_get_duration (filesource_asset));
ges_timeline_filesource_set_is_image (tfs,
ges_asset_filesource_is_image (filesource_asset));
if (ges_timeline_object_get_supported_formats (tlobj) ==
GES_TRACK_TYPE_UNKNOWN) {
ges_timeline_object_set_supported_formats (tlobj,
ges_asset_timeline_object_get_supported_formats
(GES_ASSET_TIMELINE_OBJECT (filesource_asset)));
}
GES_TIMELINE_OBJECT (tfs)->asset = asset;
}
static void
ges_extractable_interface_init (GESExtractableInterface * iface)
{
iface->asset_type = GES_TYPE_ASSET_FILESOURCE;
iface->check_id = (GESExtractableCheckId) extractable_check_id;
iface->get_parameters_from_id = extractable_get_parameters_from_id;
iface->get_id = extractable_get_id;
iface->set_asset = extractable_set_asset;
}
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)
{
ges_timeline_object_set_max_duration (GES_TIMELINE_OBJECT (self),
maxduration);
}
void
filesource_set_max_duration (GESTimelineObject * object, guint64 maxduration)
{
GList *tmp, *tckobjs;
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 (object, "duration", maxduration - object->inpoint, NULL);
}
tckobjs = ges_timeline_object_get_track_objects (object);
for (tmp = tckobjs; tmp; tmp = g_list_next (tmp)) {
ges_track_object_set_max_duration (GES_TRACK_OBJECT (tmp->data),
maxduration);
}
g_list_free_full (tckobjs, g_object_unref);
}
/**
* 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 ges_timeline_object_get_max_duration (GES_TIMELINE_OBJECT (self));
}
/**
* 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;
}
static GList *
ges_timeline_filesource_create_track_objects (GESTimelineObject * obj,
GESTrackType type)
{
GList *res = NULL;
const GList *tmp, *stream_assets;
g_return_val_if_fail (obj->asset, NULL);
stream_assets =
ges_asset_filesource_get_stream_assets (GES_ASSET_FILESOURCE
(obj->asset));
for (tmp = stream_assets; tmp; tmp = tmp->next) {
GESAssetTrackObject *asset = GES_ASSET_TRACK_OBJECT (tmp->data);
if (ges_asset_track_object_get_track_type (asset) == type)
res = g_list_prepend (res, ges_asset_extract (GES_ASSET (asset), NULL));
}
return res;
}
static GESTrackObject *
ges_timeline_filesource_create_track_object (GESTimelineObject * obj,
GESTrackType type)
{
GESTimelineFileSourcePrivate *priv = GES_TIMELINE_FILE_SOURCE (obj)->priv;
GESTrackObject *res;
if (priv->is_image) {
if (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 (type == GES_TRACK_TYPE_AUDIO && priv->mute)
ges_track_object_set_active (res, FALSE);
}
if (res)
ges_track_object_set_track_type (res, type);
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;
}