Пример #1
0
gchar *
ges_project_try_updating_id (GESProject * project, GESAsset * asset,
    GError * error)
{
  gchar *new_id = NULL;

  g_return_val_if_fail (GES_IS_PROJECT (project), NULL);
  g_return_val_if_fail (GES_IS_ASSET (asset), NULL);
  g_return_val_if_fail (error, NULL);

  GST_DEBUG_OBJECT (project, "Try to proxy %s", ges_asset_get_id (asset));
  if (ges_asset_request_id_update (asset, &new_id, error) == FALSE) {
    GST_DEBUG_OBJECT (project, "Type: %s can not be proxied for id: %s",
        g_type_name (G_OBJECT_TYPE (asset)), ges_asset_get_id (asset));

    return NULL;
  }

  if (new_id == NULL)
    g_signal_emit (project, _signals[MISSING_URI_SIGNAL], 0, error, asset,
        &new_id);

  if (new_id) {
    if (!ges_asset_set_proxy (asset, new_id)) {
      g_free (new_id);
      new_id = NULL;
    }
  }

  g_hash_table_remove (project->priv->loading_assets, ges_asset_get_id (asset));

  return new_id;
}
static inline GESClip *
_add_object_to_layer (GESBaseXmlFormatterPrivate * priv, const gchar * id,
    GESLayer * layer, GESAsset * asset, GstClockTime start,
    GstClockTime inpoint, GstClockTime duration,
    GESTrackType track_types, const gchar * metadatas,
    GstStructure * properties)
{
  GESClip *clip = ges_layer_add_asset (layer,
      asset, start, inpoint, duration, track_types);

  if (clip == NULL) {
    GST_WARNING_OBJECT (clip, "Could not add object from asset: %s",
        ges_asset_get_id (asset));

    return NULL;
  }

  if (metadatas)
    ges_meta_container_add_metas_from_string (GES_META_CONTAINER (clip),
        metadatas);

  if (properties)
    gst_structure_foreach (properties,
        (GstStructureForeachFunc) set_property_foreach, clip);

  g_hash_table_insert (priv->containers, g_strdup (id), gst_object_ref (clip));
  return clip;
}
Пример #3
0
static void
new_asset_cb (GESAsset * source, GAsyncResult * res, GESProject * project)
{
  GError *error = NULL;
  gchar *possible_id = NULL;
  const gchar *id = ges_asset_get_id (source);
  GESAsset *asset = ges_asset_request_finish (res, &error);

  if (error) {
    possible_id = ges_project_try_updating_id (project, source, error);
    if (possible_id == NULL) {
      g_hash_table_remove (project->priv->loading_assets, id);
      g_hash_table_add (project->priv->loaded_with_error, g_strdup (id));
      g_signal_emit (project, _signals[ERROR_LOADING_ASSET], 0, error, id,
          ges_asset_get_extractable_type (source));

      return;
    }

    ges_project_create_asset (project, possible_id,
        ges_asset_get_extractable_type (source));

    g_free (possible_id);
    g_error_free (error);
    return;
  }

  ges_project_add_asset (project, asset);
  if (asset)
    gst_object_unref (asset);
}
static void
extractable_set_asset (GESExtractable * self, GESAsset * asset)
{
  GEnumClass *enum_class;
  GESVideoStandardTransitionType value;
  GESTransitionClip *trans = GES_TRANSITION_CLIP (self);
  const gchar *vtype = ges_asset_get_id (asset);

  /* Update the transition type if we actually changed it */
  if (g_strcmp0 (vtype, trans->priv->vtype_name)) {
    guint index;

    value = GES_VIDEO_STANDARD_TRANSITION_TYPE_CROSSFADE;
    enum_class = g_type_class_peek (GES_VIDEO_STANDARD_TRANSITION_TYPE_TYPE);

    /* Find the in value in use */
    for (index = 0; index < enum_class->n_values; index++) {
      if (g_strcmp0 (enum_class->values[index].value_nick, vtype) == 0) {
        value = enum_class->values[index].value;
        break;
      }
    }
    ges_transition_clip_update_vtype_internal (GES_CLIP (self), value, FALSE);
  }
}
Пример #5
0
/**
 * ges_project_add_asset:
 * @project: A #GESProject
 * @asset: (transfer none): A #GESAsset to add to @project
 *
 * Adds a #Asset to @project, the project will keep a reference on
 * @asset.
 *
 * Returns: %TRUE if the asset could be added %FALSE it was already
 * in the project
 */
gboolean
ges_project_add_asset (GESProject * project, GESAsset * asset)
{
  g_return_val_if_fail (GES_IS_PROJECT (project), FALSE);

  if (g_hash_table_lookup (project->priv->assets, ges_asset_get_id (asset)))
    return FALSE;

  g_hash_table_insert (project->priv->assets,
      g_strdup (ges_asset_get_id (asset)), gst_object_ref (asset));

  g_hash_table_remove (project->priv->loading_assets, ges_asset_get_id (asset));
  GST_DEBUG_OBJECT (project, "Asset added: %s", ges_asset_get_id (asset));
  g_signal_emit (project, _signals[ASSET_ADDED_SIGNAL], 0, asset);

  return TRUE;
}
Пример #6
0
static void
_send_error_loading_asset (GESProject * project, GESAsset * asset,
    GError * error)
{
  const gchar *id = ges_asset_get_id (asset);

  GST_DEBUG_OBJECT (project, "Sending error loading asset for %s", id);
  g_hash_table_remove (project->priv->loading_assets, id);
  g_hash_table_add (project->priv->loaded_with_error, g_strdup (id));
  g_signal_emit (project, _signals[ERROR_LOADING_ASSET], 0, error, id,
      ges_asset_get_extractable_type (asset));
}
Пример #7
0
static gboolean
_load_project (GESProject * project, GESTimeline * timeline, GError ** error)
{
  GError *lerr = NULL;
  GESProjectPrivate *priv;
  GESFormatter *formatter;

  priv = GES_PROJECT (project)->priv;

  if (priv->uri == NULL) {
    EmitLoadedInIdle *data = g_slice_new (EmitLoadedInIdle);

    GST_LOG_OBJECT (project, "%s, Loading an empty timeline %s"
        " as no URI set yet", GST_OBJECT_NAME (timeline),
        ges_asset_get_id (GES_ASSET (project)));

    data->timeline = gst_object_ref (timeline);
    data->project = gst_object_ref (project);

    /* Make sure the signal is emitted after the functions ends */
    g_idle_add ((GSourceFunc) _emit_loaded_in_idle, data);
    return TRUE;
  }

  if (priv->formatter_asset == NULL)
    priv->formatter_asset = _find_formatter_asset_for_uri (priv->uri);

  if (priv->formatter_asset == NULL)
    goto failed;

  formatter = GES_FORMATTER (ges_asset_extract (priv->formatter_asset, &lerr));
  if (lerr) {
    GST_WARNING_OBJECT (project, "Could not create the formatter: %s",
        (*error)->message);

    goto failed;
  }

  ges_project_add_formatter (GES_PROJECT (project), formatter);
  ges_formatter_load_from_uri (formatter, timeline, priv->uri, &lerr);
  if (lerr) {
    GST_WARNING_OBJECT (project, "Could not load the timeline,"
        " returning: %s", lerr->message);
    goto failed;
  }

  return TRUE;

failed:
  if (lerr)
    g_propagate_error (error, lerr);
  return FALSE;
}
Пример #8
0
/**
 * ges_project_remove_asset:
 * @project: A #GESProject
 * @asset: (transfer none): A #GESAsset to remove from @project
 *
 * remove a @asset to from @project.
 *
 * Returns: %TRUE if the asset could be removed %FALSE otherwise
 */
gboolean
ges_project_remove_asset (GESProject * project, GESAsset * asset)
{
  gboolean ret;

  g_return_val_if_fail (GES_IS_PROJECT (project), FALSE);

  ret = g_hash_table_remove (project->priv->assets, ges_asset_get_id (asset));
  g_signal_emit (project, _signals[ASSET_REMOVED_SIGNAL], 0, asset);

  return ret;
}
static void
_fill_track_type (GESAsset * asset)
{
  GESTrackType ttype;
  gchar *bin_desc;
  const gchar *id = ges_asset_get_id (asset);

  bin_desc = ges_effect_assect_id_get_type_and_bindesc (id, &ttype, NULL);

  if (bin_desc) {
    ges_track_element_asset_set_track_type (GES_TRACK_ELEMENT_ASSET (asset),
        ttype);
  } else {
    GST_WARNING_OBJECT (asset, "No track type set, you should"
        " specify one in [audio, video] as first component" " in the asset id");
  }
}
Пример #10
0
gchar *
ges_project_try_updating_id (GESProject * project, GESAsset * asset,
    GError * error)
{
  gchar *new_id = NULL;
  const gchar *id;

  g_return_val_if_fail (GES_IS_PROJECT (project), NULL);
  g_return_val_if_fail (GES_IS_ASSET (asset), NULL);
  g_return_val_if_fail (error, NULL);

  id = ges_asset_get_id (asset);
  GST_DEBUG_OBJECT (project, "Try to proxy %s", id);
  if (ges_asset_request_id_update (asset, &new_id, error) == FALSE) {
    GST_DEBUG_OBJECT (project, "Type: %s can not be proxied for id: %s "
        "and error: %s", g_type_name (G_OBJECT_TYPE (asset)), id,
        error->message);
    _send_error_loading_asset (project, asset, error);

    return NULL;
  }

  if (new_id == NULL) {
    GST_DEBUG_OBJECT (project, "Sending 'missing-uri' signal for %s", id);
    g_signal_emit (project, _signals[MISSING_URI_SIGNAL], 0, error, asset,
        &new_id);
  }

  if (new_id) {
    GST_DEBUG_OBJECT (project, "new id found: %s", new_id);
    if (!ges_asset_set_proxy (asset, new_id)) {
      g_free (new_id);
      new_id = NULL;
    }
  } else {
    GST_DEBUG_OBJECT (project, "No new id found for %s", id);
  }

  g_hash_table_remove (project->priv->loading_assets, id);

  if (new_id == NULL)
    _send_error_loading_asset (project, asset, error);


  return new_id;
}
Пример #11
0
static void
asset_created_cb (GObject * source, GAsyncResult * res, gpointer udata)
{
  GList *tracks, *tmp;
  GESAsset *asset;
  GESLayer *layer;
  GESUriClip *tlfs;

  GError *error = NULL;

  asset = ges_asset_request_finish (res, &error);
  ASSERT_OBJECT_REFCOUNT (asset, "1 for us + for the cache + 1 taken "
      "by g_simple_async_result_complete_in_idle", 3);
  fail_unless (error == NULL);
  fail_if (asset == NULL);
  fail_if (g_strcmp0 (ges_asset_get_id (asset), av_uri));

  layer = GES_LAYER (g_async_result_get_user_data (res));
  tlfs = GES_URI_CLIP (ges_layer_add_asset (layer,
          asset, 0, 0, GST_CLOCK_TIME_NONE, GES_TRACK_TYPE_UNKNOWN));
  fail_unless (GES_IS_URI_CLIP (tlfs));
  fail_if (g_strcmp0 (ges_uri_clip_get_uri (tlfs), av_uri));
  assert_equals_uint64 (_DURATION (tlfs), GST_SECOND);

  fail_unless (ges_clip_get_supported_formats
      (GES_CLIP (tlfs)) & GES_TRACK_TYPE_VIDEO);
  fail_unless (ges_clip_get_supported_formats
      (GES_CLIP (tlfs)) & GES_TRACK_TYPE_AUDIO);

  tracks = ges_timeline_get_tracks (ges_layer_get_timeline (layer));
  for (tmp = tracks; tmp; tmp = tmp->next) {
    GList *trackelements = ges_track_get_elements (GES_TRACK (tmp->data));

    assert_equals_int (g_list_length (trackelements), 1);
    fail_unless (GES_IS_VIDEO_URI_SOURCE (trackelements->data)
        || GES_IS_AUDIO_URI_SOURCE (trackelements->data));
    g_list_free_full (trackelements, gst_object_unref);
  }
  g_list_free_full (tracks, gst_object_unref);

  gst_object_unref (asset);
  g_main_loop_quit (mainloop);
}
Пример #12
0
static void
new_asset_cb (GESAsset * source, GAsyncResult * res, NewAssetUData * udata)
{
  GError *error = NULL;

  GESAsset *asset = ges_asset_request_finish (res, &error);

  GST_DEBUG_OBJECT (udata->layer, "%" GST_PTR_FORMAT " Asset loaded, "
      "setting its asset", udata->clip);

  if (error) {
    GESProject *project = udata->layer->timeline ?
        GES_PROJECT (ges_extractable_get_asset (GES_EXTRACTABLE
            (udata->layer->timeline))) : NULL;
    if (project) {
      gchar *possible_id;

      possible_id = ges_project_try_updating_id (project, source, error);
      if (possible_id) {
        ges_asset_request_async (ges_asset_get_extractable_type (source),
            possible_id, NULL, (GAsyncReadyCallback) new_asset_cb, udata);
        g_free (possible_id);
        return;
      }
    }

    GST_ERROR ("Asset could not be created for uri %s, error: %s",
        ges_asset_get_id (asset), error->message);

  } else {
    GESProject *project = udata->layer->timeline ?
        GES_PROJECT (ges_extractable_get_asset (GES_EXTRACTABLE
            (udata->layer->timeline))) : NULL;
    ges_extractable_set_asset (GES_EXTRACTABLE (udata->clip), asset);

    ges_project_add_asset (project, asset);
    ges_layer_add_clip (udata->layer, udata->clip);
  }

  gst_object_unref (asset);
  g_slice_free (NewAssetUData, udata);
}
Пример #13
0
void
ges_asset_cache_put (GESAsset * asset, GSimpleAsyncResult * res)
{
  GType extractable_type;
  const gchar *asset_id;
  GESAssetCacheEntry *entry;

  /* Needing to work with the cache, taking the lock */
  asset_id = ges_asset_get_id (asset);
  extractable_type = asset->priv->extractable_type;

  LOCK_CACHE;
  if (!(entry = _lookup_entry (extractable_type, asset_id))) {
    GHashTable *entries_table;

    entries_table = g_hash_table_lookup (type_entries_table,
        _extractable_type_name (extractable_type));
    if (entries_table == NULL) {
      entries_table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,
          _free_entries);

      g_hash_table_insert (type_entries_table,
          g_strdup (_extractable_type_name (extractable_type)), entries_table);
    }

    entry = g_slice_new0 (GESAssetCacheEntry);

    entry->asset = asset;
    if (res)
      entry->results = g_list_prepend (entry->results, res);
    g_hash_table_insert (entries_table, (gpointer) g_strdup (asset_id),
        (gpointer) entry);
  } else {
    if (res) {
      GST_DEBUG ("%s already in cache, adding result %p", asset_id, res);
      entry->results = g_list_prepend (entry->results, res);
    }
  }
  UNLOCK_CACHE;
}
Пример #14
0
/**
 * ges_layer_add_asset:
 * @layer: a #GESLayer
 * @asset: The asset to add to
 * @start: The start value to set on the new #GESClip
 * @inpoint: The inpoint value to set on the new #GESClip
 * @duration: The duration value to set on the new #GESClip
 * @track_types: The #GESTrackType to set on the the new #GESClip
 *
 * Creates Clip from asset, adds it to layer and
 * returns a reference to it.
 *
 * Returns: (transfer none): Created #GESClip
 */
GESClip *
ges_layer_add_asset (GESLayer * layer,
    GESAsset * asset, GstClockTime start, GstClockTime inpoint,
    GstClockTime duration, GESTrackType track_types)
{
  GESClip *clip;

  g_return_val_if_fail (GES_IS_LAYER (layer), NULL);
  g_return_val_if_fail (GES_IS_ASSET (asset), NULL);
  g_return_val_if_fail (g_type_is_a (ges_asset_get_extractable_type
          (asset), GES_TYPE_CLIP), NULL);

  GST_DEBUG_OBJECT (layer, "Adding asset %s with: start: %" GST_TIME_FORMAT
      " inpoint: %" GST_TIME_FORMAT " duration: %" GST_TIME_FORMAT
      " track types: %d (%s)", ges_asset_get_id (asset), GST_TIME_ARGS (start),
      GST_TIME_ARGS (inpoint), GST_TIME_ARGS (duration), track_types,
      ges_track_type_name (track_types));

  clip = GES_CLIP (ges_asset_extract (asset, NULL));
  _set_start0 (GES_TIMELINE_ELEMENT (clip), start);
  _set_inpoint0 (GES_TIMELINE_ELEMENT (clip), inpoint);
  if (track_types != GES_TRACK_TYPE_UNKNOWN)
    ges_clip_set_supported_formats (clip, track_types);

  if (GST_CLOCK_TIME_IS_VALID (duration)) {
    _set_duration0 (GES_TIMELINE_ELEMENT (clip), duration);
  }

  if (!ges_layer_add_clip (layer, clip)) {
    gst_object_unref (clip);

    return NULL;
  }

  return clip;
}
Пример #15
0
static gboolean
extractable_set_asset (GESExtractable * self, GESAsset * asset)
{
  gboolean res = TRUE;
  GESUriClip *uriclip = GES_URI_CLIP (self);
  GESUriClipAsset *uri_clip_asset;
  GESClip *clip = GES_CLIP (self);
  GESLayer *layer = ges_clip_get_layer (clip);
  GList *tmp;
  GESTimelineElement *audio_source = NULL, *video_source = NULL;

  g_return_val_if_fail (GES_IS_URI_CLIP_ASSET (asset), FALSE);

  uri_clip_asset = GES_URI_CLIP_ASSET (asset);
  if (GST_CLOCK_TIME_IS_VALID (GES_TIMELINE_ELEMENT_DURATION (clip)) == FALSE)
    _set_duration0 (GES_TIMELINE_ELEMENT (uriclip),
        ges_uri_clip_asset_get_duration (uri_clip_asset));

  ges_timeline_element_set_max_duration (GES_TIMELINE_ELEMENT (uriclip),
      ges_uri_clip_asset_get_duration (uri_clip_asset));
  ges_uri_clip_set_is_image (uriclip,
      ges_uri_clip_asset_is_image (uri_clip_asset));

  if (ges_clip_get_supported_formats (clip) == GES_TRACK_TYPE_UNKNOWN) {
    ges_clip_set_supported_formats (clip,
        ges_clip_asset_get_supported_formats (GES_CLIP_ASSET (uri_clip_asset)));
  }

  GES_TIMELINE_ELEMENT (uriclip)->asset = asset;

  if (layer) {
    GList *children = ges_container_get_children (GES_CONTAINER (self), TRUE);

    for (tmp = children; tmp; tmp = tmp->next) {
      if (GES_IS_SOURCE (tmp->data)) {
        GESTrack *track = ges_track_element_get_track (tmp->data);

        if (track->type == GES_TRACK_TYPE_AUDIO)
          audio_source = gst_object_ref (tmp->data);
        else if (track->type == GES_TRACK_TYPE_VIDEO)
          video_source = gst_object_ref (tmp->data);

        ges_track_remove_element (track, tmp->data);
        ges_container_remove (GES_CONTAINER (self), tmp->data);
      }
    }
    g_list_free_full (children, g_object_unref);

    gst_object_ref (clip);

    ges_layer_remove_clip (layer, clip);
    res = ges_layer_add_clip (layer, clip);

    for (tmp = GES_CONTAINER_CHILDREN (self); tmp; tmp = tmp->next) {
      if (GES_IS_SOURCE (tmp->data)) {
        GESTrack *track = ges_track_element_get_track (tmp->data);

        if (track->type == GES_TRACK_TYPE_AUDIO && audio_source)
          ges_track_element_copy_properties (audio_source, tmp->data);
        else if (track->type == GES_TRACK_TYPE_VIDEO && video_source)
          ges_track_element_copy_properties (video_source, tmp->data);
      }
    }

    g_clear_object (&audio_source);
    g_clear_object (&video_source);
    gst_object_unref (clip);
    gst_object_unref (layer);
  }

  if (res) {
    g_free (uriclip->priv->uri);
    uriclip->priv->uri = g_strdup (ges_asset_get_id (asset));
  }

  return res;
}
static void
new_asset_cb (GESAsset * source, GAsyncResult * res, PendingAsset * passet)
{
  GError *error = NULL;
  gchar *possible_id = NULL;
  GList *tmp, *pendings = NULL;
  GESFormatter *self = passet->formatter;
  const gchar *id = ges_asset_get_id (source);
  GESBaseXmlFormatterPrivate *priv = _GET_PRIV (self);
  GESAsset *asset = ges_asset_request_finish (res, &error);

  if (error) {
    GST_LOG_OBJECT (self, "Error %s creating asset id: %s", error->message, id);

    /* We set the metas on the Asset to give hints to the user */
    if (passet->metadatas)
      ges_meta_container_add_metas_from_string (GES_META_CONTAINER (source),
          passet->metadatas);
    if (passet->properties)
      gst_structure_foreach (passet->properties,
          (GstStructureForeachFunc) set_property_foreach, source);

    possible_id = ges_project_try_updating_id (GES_FORMATTER (self)->project,
        source, error);

    if (possible_id == NULL) {
      GST_WARNING_OBJECT (self, "Abandoning creation of asset %s with ID %s"
          "- Error: %s", g_type_name (G_OBJECT_TYPE (source)), id,
          error->message);

      pendings = g_hash_table_lookup (priv->assetid_pendingclips, id);
      for (tmp = pendings; tmp; tmp = tmp->next)
        _free_pending_clip (priv, (PendingClip *) tmp->data);

      _free_pending_asset (priv, passet);
      goto done;
    }

    /* We got a possible ID replacement for that asset, create it, and
     * make sure the assetid_pendingclips will use it */
    ges_asset_request_async (ges_asset_get_extractable_type (source),
        possible_id, NULL, (GAsyncReadyCallback) new_asset_cb, passet);
    ges_project_add_loading_asset (GES_FORMATTER (self)->project,
        ges_asset_get_extractable_type (source), possible_id);

    pendings = g_hash_table_lookup (priv->assetid_pendingclips, id);
    if (pendings) {
      g_hash_table_remove (priv->assetid_pendingclips, id);
      g_hash_table_insert (priv->assetid_pendingclips,
          g_strdup (possible_id), pendings);

      /* pendings should no be freed */
      pendings = NULL;
    }
    goto done;
  }

  /* now that we have the GESAsset, we create the GESClips */
  pendings = g_hash_table_lookup (priv->assetid_pendingclips, id);
  GST_DEBUG_OBJECT (self, "Asset created with ID %s, now creating pending "
      " Clips, nb pendings: %i", id, g_list_length (pendings));
  for (tmp = pendings; tmp; tmp = tmp->next) {
    GList *tmpeffect;
    GESClip *clip;
    PendingClip *pend = (PendingClip *) tmp->data;

    clip =
        _add_object_to_layer (priv, pend->id, pend->layer, asset,
        pend->start, pend->inpoint, pend->duration, pend->track_types,
        pend->metadatas, pend->properties);

    if (clip == NULL)
      continue;

    _add_children_properties (priv, pend->children_props, clip);
    _add_pending_bindings (priv, pend->pending_bindings, clip);

    GST_DEBUG_OBJECT (self, "Adding %i effect to new object",
        g_list_length (pend->effects));
    for (tmpeffect = pend->effects; tmpeffect; tmpeffect = tmpeffect->next) {
      PendingEffects *peffect = (PendingEffects *) tmpeffect->data;

      /* We keep a ref as _free_pending_effect unrefs it */
      _add_track_element (self, clip, gst_object_ref (peffect->trackelement),
          peffect->track_id, peffect->children_properties, peffect->properties);
    }
    _free_pending_clip (priv, pend);
  }

  /* And now add to the project */
  ges_project_add_asset (self->project, asset);
  gst_object_unref (self);

  _free_pending_asset (priv, passet);

done:
  if (asset)
    gst_object_unref (asset);
  if (possible_id)
    g_free (possible_id);

  if (pendings) {
    g_hash_table_remove (priv->assetid_pendingclips, id);
    g_list_free (pendings);
  }

  if (g_hash_table_size (priv->assetid_pendingclips) == 0 &&
      priv->pending_assets == NULL)
    _loading_done (self);
}
Пример #17
0
/**
 * ges_project_save:
 * @project: A #GESProject to save
 * @timeline: The #GESTimeline to save, it must have been extracted from @project
 * @uri: The uri where to save @project and @timeline
 * @formatter_asset: (allow-none): The formatter asset to use or %NULL. If %NULL,
 * will try to save in the same format as the one from which the timeline as been loaded
 * or default to the formatter with highest rank
 * @overwrite: %TRUE to overwrite file if it exists
 * @error: (out) (allow-none): An error to be set in case something wrong happens or %NULL
 *
 * Save the timeline of @project to @uri. You should make sure that @timeline
 * is one of the timelines that have been extracted from @project
 * (using ges_asset_extract (@project);)
 *
 * Returns: %TRUE if the project could be save, %FALSE otherwize
 */
gboolean
ges_project_save (GESProject * project, GESTimeline * timeline,
    const gchar * uri, GESAsset * formatter_asset, gboolean overwrite,
    GError ** error)
{
  GESAsset *tl_asset;
  gboolean ret = TRUE;
  GESFormatter *formatter = NULL;

  g_return_val_if_fail (GES_IS_PROJECT (project), FALSE);
  g_return_val_if_fail (formatter_asset == NULL ||
      g_type_is_a (ges_asset_get_extractable_type (formatter_asset),
          GES_TYPE_FORMATTER), FALSE);
  g_return_val_if_fail ((error == NULL || *error == NULL), FALSE);

  tl_asset = ges_extractable_get_asset (GES_EXTRACTABLE (timeline));
  if (tl_asset == NULL && project->priv->uri == NULL) {
    GESAsset *asset = ges_asset_cache_lookup (GES_TYPE_PROJECT, uri);

    if (asset) {
      GST_WARNING_OBJECT (project, "Trying to save project to %s but we already"
          "have %" GST_PTR_FORMAT " for that uri, can not save", uri, asset);
      goto out;
    }

    GST_DEBUG_OBJECT (project, "Timeline %" GST_PTR_FORMAT " has no asset"
        " we have no uri set, so setting ourself as asset", timeline);

    ges_extractable_set_asset (GES_EXTRACTABLE (timeline), GES_ASSET (project));
  } else if (tl_asset != GES_ASSET (project)) {
    GST_WARNING_OBJECT (project, "Timeline %" GST_PTR_FORMAT
        " not created by this project can not save", timeline);

    ret = FALSE;
    goto out;
  }

  if (formatter_asset == NULL)
    formatter_asset = gst_object_ref (ges_formatter_get_default ());

  formatter = GES_FORMATTER (ges_asset_extract (formatter_asset, error));
  if (formatter == NULL) {
    GST_WARNING_OBJECT (project, "Could not create the formatter %p %s: %s",
        formatter_asset, ges_asset_get_id (formatter_asset),
        (error && *error) ? (*error)->message : "Unknown Error");

    ret = FALSE;
    goto out;
  }

  ges_project_add_formatter (project, formatter);
  ret = ges_formatter_save_to_uri (formatter, timeline, uri, overwrite, error);
  if (ret && project->priv->uri == NULL)
    ges_project_set_uri (project, uri);

out:
  if (formatter_asset)
    gst_object_unref (formatter_asset);
  ges_project_remove_formatter (project, formatter);

  return ret;
}