gstreamer/subprojects/gst-editing-services/ges/ges-uri-asset.c
Thibault Saunier 98e5c5e862 ges: Implement a new GESDiscovererManager object
Allowing better control over the way discovery happens and allowing
us to expose a proper API.

This also adds the potential of implementing more multi-threaded
discovery in a clean way in the future.

This allows us to cleanly expose the new
GstDiscoverer::load-serialize-info signal.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3911>
2023-04-29 06:54:10 -04:00

950 lines
26 KiB
C

/* GStreamer Editing Services
*
* Copyright (C) 2012 Thibault Saunier <thibault.saunier@collabora.com>
* Copyright (C) 2012 Volodymyr Rudyi <vladimir.rudoy@gmail.com>
*
* 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: gesuriasset
* @title: GESUriClipAsset
* @short_description: A GESAsset subclass specialized in GESUriClip extraction
*
* The #GESUriClipAsset is a special #GESAsset that lets you handle
* the media file to use inside the GStreamer Editing Services. It has APIs that
* let you get information about the medias. Also, the tags found in the media file are
* set as Metadata of the Asset.
*/
#include "ges-discoverer-manager.h"
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <gst/pbutils/pbutils.h>
#include "ges.h"
#include "ges-internal.h"
#include "ges-track-element-asset.h"
#define DEFAULT_DISCOVERY_TIMEOUT (60 * GST_SECOND)
static GHashTable *parent_newparent_table = NULL;
static void discoverer_discovered_cb (GstDiscoverer * discoverer,
GstDiscovererInfo * info, GError * err, gpointer user_data);
static void
initable_iface_init (GInitableIface * initable_iface)
{
/* We can not iniate synchronously */
initable_iface->init = NULL;
}
/* TODO: We should monitor files here, and add some way of reporting changes
* to user
*/
enum
{
PROP_0,
PROP_DURATION,
PROP_IS_NESTED_TIMELINE,
PROP_LAST
};
static GParamSpec *properties[PROP_LAST];
struct _GESUriClipAssetPrivate
{
GstDiscovererInfo *info;
GstClockTime duration;
GstClockTime max_duration;
gboolean is_image;
gboolean is_nested_timeline;
GList *asset_trackfilesources;
};
typedef struct
{
GMainLoop *ml;
GESAsset *asset;
GError *error;
} RequestSyncData;
struct _GESUriSourceAssetPrivate
{
GstDiscovererStreamInfo *sinfo;
GESUriClipAsset *creator_asset;
const gchar *uri;
};
G_DEFINE_TYPE_WITH_CODE (GESUriClipAsset, ges_uri_clip_asset,
GES_TYPE_SOURCE_CLIP_ASSET, G_ADD_PRIVATE (GESUriClipAsset)
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, initable_iface_init));
static void
ges_uri_clip_asset_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GESUriClipAssetPrivate *priv = GES_URI_CLIP_ASSET (object)->priv;
switch (property_id) {
case PROP_DURATION:
g_value_set_uint64 (value, priv->duration);
break;
case PROP_IS_NESTED_TIMELINE:
g_value_set_boolean (value, priv->is_nested_timeline);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_uri_clip_asset_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GESUriClipAssetPrivate *priv = GES_URI_CLIP_ASSET (object)->priv;
switch (property_id) {
case PROP_DURATION:
priv->duration = g_value_get_uint64 (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static GESAssetLoadingReturn
_start_loading (GESAsset * asset, GError ** error)
{
gboolean ret;
const gchar *uri;
GESDiscovererManager *manager = ges_discoverer_manager_get_default ();
uri = ges_asset_get_id (asset);
GST_DEBUG_OBJECT (manager, "Started loading %s", uri);
ret = ges_discoverer_manager_start_discovery (manager, uri);
gst_object_unref (manager);
if (ret)
return GES_ASSET_LOADING_ASYNC;
return GES_ASSET_LOADING_ERROR;
}
static gboolean
_request_id_update (GESAsset * self, gchar ** proposed_new_id, GError * error)
{
if (error->domain == GST_RESOURCE_ERROR &&
(error->code == GST_RESOURCE_ERROR_NOT_FOUND ||
error->code == GST_RESOURCE_ERROR_OPEN_READ)) {
const gchar *uri = ges_asset_get_id (self);
GFile *parent, *file = g_file_new_for_uri (uri);
/* Check if we have the new parent in cache */
parent = g_file_get_parent (file);
if (parent) {
GFile *new_parent = g_hash_table_lookup (parent_newparent_table, parent);
if (new_parent) {
gchar *basename = g_file_get_basename (file);
GFile *new_file = g_file_get_child (new_parent, basename);
/* FIXME Handle the GCancellable */
if (g_file_query_exists (new_file, NULL)) {
*proposed_new_id = g_file_get_uri (new_file);
GST_DEBUG_OBJECT (self, "Proposing path: %s as proxy",
*proposed_new_id);
}
gst_object_unref (new_file);
g_free (basename);
}
gst_object_unref (parent);
}
gst_object_unref (file);
return TRUE;
}
return FALSE;
}
static gboolean
ges_uri_source_asset_get_natural_framerate (GESTrackElementAsset * asset,
gint * framerate_n, gint * framerate_d)
{
GESUriSourceAssetPrivate *priv = GES_URI_SOURCE_ASSET (asset)->priv;
if (!GST_IS_DISCOVERER_VIDEO_INFO (priv->sinfo))
return FALSE;
*framerate_d =
gst_discoverer_video_info_get_framerate_denom (GST_DISCOVERER_VIDEO_INFO
(priv->sinfo));
*framerate_n =
gst_discoverer_video_info_get_framerate_num (GST_DISCOVERER_VIDEO_INFO
(priv->sinfo));
if ((*framerate_n == 0 && *framerate_d == 1) || *framerate_d == 0
|| *framerate_d == G_MAXINT) {
GST_INFO_OBJECT (asset, "No framerate information about the file.");
*framerate_n = 0;
*framerate_d = -1;
return FALSE;
}
return TRUE;
}
static gboolean
_get_natural_framerate (GESClipAsset * self, gint * framerate_n,
gint * framerate_d)
{
GList *tmp;
for (tmp = (GList *)
ges_uri_clip_asset_get_stream_assets (GES_URI_CLIP_ASSET (self)); tmp;
tmp = tmp->next) {
if (ges_track_element_asset_get_natural_framerate (tmp->data, framerate_n,
framerate_d))
return TRUE;
}
return FALSE;
}
static void
_asset_proxied (GESAsset * self, const gchar * new_uri)
{
const gchar *uri = ges_asset_get_id (self);
GFile *parent, *new_parent, *new_file = g_file_new_for_uri (new_uri),
*file = g_file_new_for_uri (uri);
parent = g_file_get_parent (file);
new_parent = g_file_get_parent (new_file);
g_hash_table_insert (parent_newparent_table, parent, new_parent);
gst_object_unref (file);
gst_object_unref (new_file);
}
static void
ges_uri_clip_asset_dispose (GObject * object)
{
GESUriClipAsset *self = GES_URI_CLIP_ASSET (object);
GESUriClipAssetPrivate *prif = self->priv;
if (prif->asset_trackfilesources) {
g_list_free_full (prif->asset_trackfilesources,
(GDestroyNotify) gst_object_unref);
prif->asset_trackfilesources = NULL;
}
gst_clear_object (&prif->info);
G_OBJECT_CLASS (ges_uri_clip_asset_parent_class)->dispose (object);
}
static void
ges_uri_clip_asset_class_init (GESUriClipAssetClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = ges_uri_clip_asset_get_property;
object_class->set_property = ges_uri_clip_asset_set_property;
object_class->dispose = ges_uri_clip_asset_dispose;
GES_ASSET_CLASS (klass)->start_loading = _start_loading;
GES_ASSET_CLASS (klass)->request_id_update = _request_id_update;
GES_ASSET_CLASS (klass)->inform_proxy = _asset_proxied;
GES_CLIP_ASSET_CLASS (klass)->get_natural_framerate = _get_natural_framerate;
klass->discovered = discoverer_discovered_cb;
/**
* GESUriClipAsset:duration:
*
* The duration (in nanoseconds) of the media file
*/
properties[PROP_DURATION] =
g_param_spec_uint64 ("duration", "Duration", "The duration to use", 0,
G_MAXUINT64, GST_CLOCK_TIME_NONE, G_PARAM_READWRITE);
g_object_class_install_property (object_class, PROP_DURATION,
properties[PROP_DURATION]);
/**
* GESUriClipAsset:is-nested-timeline:
*
* The duration (in nanoseconds) of the media file
*
* Since: 1.18
*/
properties[PROP_IS_NESTED_TIMELINE] =
g_param_spec_boolean ("is-nested-timeline", "Is nested timeline",
"Whether this is a nested timeline", FALSE, G_PARAM_READABLE);
g_object_class_install_property (object_class, PROP_IS_NESTED_TIMELINE,
properties[PROP_IS_NESTED_TIMELINE]);
_ges_uri_asset_ensure_setup (klass);
}
static void
ges_uri_clip_asset_init (GESUriClipAsset * self)
{
GESUriClipAssetPrivate *priv;
priv = self->priv = ges_uri_clip_asset_get_instance_private (self);
priv->info = NULL;
priv->max_duration = priv->duration = GST_CLOCK_TIME_NONE;
priv->is_image = FALSE;
}
static void
_create_uri_source_asset (GESUriClipAsset * asset,
GstDiscovererStreamInfo * sinfo, GESTrackType type)
{
GESAsset *src_asset;
GESUriSourceAssetPrivate *src_priv;
GESUriClipAssetPrivate *priv = asset->priv;
gchar *stream_id =
g_strdup (gst_discoverer_stream_info_get_stream_id (sinfo));
if (stream_id == NULL) {
GST_WARNING_OBJECT (asset,
"No stream ID, ignoring stream info: %p off type: %s", sinfo,
ges_track_type_name (type));
return;
}
if (type == GES_TRACK_TYPE_VIDEO) {
src_asset = ges_asset_request (GES_TYPE_VIDEO_URI_SOURCE, stream_id, NULL);
} else if (type == GES_TRACK_TYPE_AUDIO) {
src_asset = ges_asset_request (GES_TYPE_AUDIO_URI_SOURCE, stream_id, NULL);
} else {
GST_INFO_OBJECT (asset,
"Unknown track type %d, not creating any asset backing it", type);
return;
}
g_free (stream_id);
src_priv = GES_URI_SOURCE_ASSET (src_asset)->priv;
src_priv->uri = ges_asset_get_id (GES_ASSET (asset));
src_priv->sinfo = gst_object_ref (sinfo);
src_priv->creator_asset = asset;
ges_track_element_asset_set_track_type (GES_TRACK_ELEMENT_ASSET
(src_asset), type);
priv->is_image |=
ges_uri_source_asset_is_image (GES_URI_SOURCE_ASSET (src_asset));
priv->asset_trackfilesources =
g_list_append (priv->asset_trackfilesources, src_asset);
}
static void
ges_uri_clip_asset_set_info (GESUriClipAsset * self, GstDiscovererInfo * info)
{
GList *tmp, *stream_list;
GESTrackType supportedformats = GES_TRACK_TYPE_UNKNOWN;
GESUriClipAssetPrivate *priv = GES_URI_CLIP_ASSET (self)->priv;
const GstTagList *tlist = gst_discoverer_info_get_tags (info);
/* Extract infos from the GstDiscovererInfo */
stream_list = gst_discoverer_info_get_stream_list (info);
for (tmp = stream_list; tmp; tmp = tmp->next) {
GESTrackType type = GES_TRACK_TYPE_UNKNOWN;
GstDiscovererStreamInfo *sinf = (GstDiscovererStreamInfo *) tmp->data;
if (GST_IS_DISCOVERER_AUDIO_INFO (sinf)) {
if (supportedformats == GES_TRACK_TYPE_UNKNOWN)
supportedformats = GES_TRACK_TYPE_AUDIO;
else
supportedformats |= GES_TRACK_TYPE_AUDIO;
type = GES_TRACK_TYPE_AUDIO;
} else if (GST_IS_DISCOVERER_VIDEO_INFO (sinf)) {
if (supportedformats == GES_TRACK_TYPE_UNKNOWN)
supportedformats = GES_TRACK_TYPE_VIDEO;
else
supportedformats |= GES_TRACK_TYPE_VIDEO;
type = GES_TRACK_TYPE_VIDEO;
}
GST_DEBUG_OBJECT (self, "Creating GESUriSourceAsset for stream: %s",
gst_discoverer_stream_info_get_stream_id (sinf));
_create_uri_source_asset (self, sinf, type);
}
ges_clip_asset_set_supported_formats (GES_CLIP_ASSET
(self), supportedformats);
if (stream_list)
gst_discoverer_stream_info_list_free (stream_list);
if (tlist)
gst_tag_list_get_boolean (tlist, "is-ges-timeline",
&priv->is_nested_timeline);
if (priv->is_image == FALSE) {
priv->max_duration = priv->duration =
gst_discoverer_info_get_duration (info);
if (priv->is_nested_timeline)
priv->max_duration = GST_CLOCK_TIME_NONE;
}
/* else we keep #GST_CLOCK_TIME_NONE */
priv->info = gst_object_ref (info);
}
static void
_set_meta_file_size (const gchar * uri, GESUriClipAsset * asset)
{
GError *error = NULL;
GFileInfo *file_info = NULL;
guint64 file_size;
GFile *gfile = NULL;
GESMetaContainer *container = GES_META_CONTAINER (asset);
gfile = g_file_new_for_uri (uri);
file_info = g_file_query_info (gfile, "standard::size",
G_FILE_QUERY_INFO_NONE, NULL, &error);
if (!error) {
file_size = g_file_info_get_attribute_uint64 (file_info, "standard::size");
ges_meta_container_register_meta_uint64 (container, GES_META_READ_WRITE,
"file-size", file_size);
} else {
g_error_free (error);
}
if (gfile)
g_object_unref (gfile);
if (file_info)
g_object_unref (file_info);
}
static void
_set_meta_foreach (const GstTagList * tags, const gchar * tag,
GESMetaContainer * container)
{
GValue value = { 0 };
if (gst_tag_list_copy_value (&value, tags, tag)) {
ges_meta_container_set_meta (container, tag, &value);
g_value_unset (&value);
} else {
GST_INFO ("Could not set metadata: %s", tag);
}
}
static void
discoverer_discovered_cb (GstDiscoverer * _object,
GstDiscovererInfo * info, GError * err, gpointer user_data)
{
GError *error = NULL;
const GstTagList *tags;
const gchar *uri = gst_discoverer_info_get_uri (info);
GESUriClipAsset *mfs =
GES_URI_CLIP_ASSET (ges_asset_cache_lookup (GES_TYPE_URI_CLIP, uri));
tags = gst_discoverer_info_get_tags (info);
if (tags)
gst_tag_list_foreach (tags, (GstTagForeachFunc) _set_meta_foreach, mfs);
_set_meta_file_size (uri, mfs);
if (gst_discoverer_info_get_result (info) == GST_DISCOVERER_OK
|| gst_discoverer_info_get_result (info) ==
GST_DISCOVERER_MISSING_PLUGINS) {
ges_uri_clip_asset_set_info (mfs, info);
} else {
if (err) {
error = g_error_copy (err);
} else {
error = g_error_new (GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_FAILED,
"Stream %s discovering failed (error code: %d)",
uri, gst_discoverer_info_get_result (info));
}
}
ges_asset_cache_set_loaded (GES_TYPE_URI_CLIP, uri, error);
if (error)
g_error_free (error);
}
static void
asset_ready_cb (GESAsset * source, GAsyncResult * res, RequestSyncData * data)
{
data->asset = ges_asset_request_finish (res, &data->error);
if (data->error) {
gchar *possible_uri = ges_uri_asset_try_update_id (data->error, source);
if (possible_uri) {
ges_asset_try_proxy (source, possible_uri);
g_clear_error (&data->error);
ges_asset_request_async (GES_TYPE_URI_CLIP, possible_uri, NULL,
(GAsyncReadyCallback) asset_ready_cb, data);
g_free (possible_uri);
return;
}
}
g_main_loop_quit (data->ml);
}
/* API implementation */
/**
* ges_uri_clip_asset_get_info:
* @self: Target asset
*
* Gets #GstDiscovererInfo about the file
*
* Returns: (transfer none): #GstDiscovererInfo of specified asset
*/
GstDiscovererInfo *
ges_uri_clip_asset_get_info (const GESUriClipAsset * self)
{
g_return_val_if_fail (GES_IS_URI_CLIP_ASSET ((GESUriClipAsset *) self), NULL);
return self->priv->info;
}
/**
* ges_uri_clip_asset_get_duration:
* @self: a #GESUriClipAsset
*
* Gets duration of the file represented by @self
*
* Returns: The duration of @self
*/
GstClockTime
ges_uri_clip_asset_get_duration (GESUriClipAsset * self)
{
g_return_val_if_fail (GES_IS_URI_CLIP_ASSET (self), GST_CLOCK_TIME_NONE);
return self->priv->duration;
}
/**
* ges_uri_clip_asset_get_max_duration:
* @self: a #GESUriClipAsset
*
* Gets maximum duration of the file represented by @self,
* it is usually the same as GESUriClipAsset::duration,
* but in the case of nested timelines, for example, they
* are different as those can be extended 'infinitely'.
*
* Returns: The maximum duration of @self
*
* Since: 1.18
*/
GstClockTime
ges_uri_clip_asset_get_max_duration (GESUriClipAsset * self)
{
g_return_val_if_fail (GES_IS_URI_CLIP_ASSET (self), GST_CLOCK_TIME_NONE);
return self->priv->max_duration;
}
/**
* ges_uri_clip_asset_is_image:
* @self: a #GESUriClipAsset
*
* Gets Whether the file represented by @self is an image or not
*
* Returns: Whether the file represented by @self is an image or not
*
* Since: 1.18
*/
gboolean
ges_uri_clip_asset_is_image (GESUriClipAsset * self)
{
g_return_val_if_fail (GES_IS_URI_CLIP_ASSET (self), FALSE);
return self->priv->is_image;
}
/**
* ges_uri_clip_asset_new:
* @uri: The URI of the file for which to create a #GESUriClipAsset
* @cancellable: optional %GCancellable object, %NULL to ignore.
* @callback: (scope async): a #GAsyncReadyCallback to call when the initialization is finished
* @user_data: The user data to pass when @callback is called
*
* Creates a #GESUriClipAsset for @uri
*
* Example of request of a GESUriClipAsset:
* |[
* // The request callback
* static void
* filesource_asset_loaded_cb (GESAsset * source, GAsyncResult * res, gpointer user_data)
* {
* GError *error = NULL;
* GESUriClipAsset *filesource_asset;
*
* filesource_asset = ges_uri_clip_asset_finish (res, &error);
* if (filesource_asset) {
* gst_print ("The file: %s is usable as a FileSource, it is%s an image and lasts %" GST_TIME_FORMAT,
* ges_asset_get_id (GES_ASSET (filesource_asset))
* ges_uri_clip_asset_is_image (filesource_asset) ? "" : " not",
* GST_TIME_ARGS (ges_uri_clip_asset_get_duration (filesource_asset));
* } else {
* gst_print ("The file: %s is *not* usable as a FileSource because: %s",
* ges_asset_get_id (source), error->message);
* }
*
* gst_object_unref (mfs);
* }
*
* // The request:
* ges_uri_clip_asset_new (uri, (GAsyncReadyCallback) filesource_asset_loaded_cb, user_data);
* ]|
*/
void
ges_uri_clip_asset_new (const gchar * uri, GCancellable * cancellable,
GAsyncReadyCallback callback, gpointer user_data)
{
ges_asset_request_async (GES_TYPE_URI_CLIP, uri, cancellable,
callback, user_data);
}
/**
* ges_uri_clip_asset_finish:
* @res: The #GAsyncResult from which to get the newly created #GESUriClipAsset
* @error: An error to be set in case something wrong happens or %NULL
*
* Finalize the request of an async #GESUriClipAsset
*
* Returns: (transfer full): The #GESUriClipAsset previously requested
*
* Since: 1.16
*/
GESUriClipAsset *
ges_uri_clip_asset_finish (GAsyncResult * res, GError ** error)
{
GESAsset *asset;
g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
asset = ges_asset_request_finish (res, error);
if (asset != NULL) {
return GES_URI_CLIP_ASSET (asset);
}
return NULL;
}
/**
* ges_uri_clip_asset_request_sync:
* @uri: The URI of the file for which to create a #GESUriClipAsset.
* You can also use multi file uris for #GESMultiFileSource.
* @error: An error to be set in case something wrong happens or %NULL
*
* Creates a #GESUriClipAsset for @uri synchonously. You should avoid
* to use it in application, and rather create #GESUriClipAsset asynchronously
*
* Returns: (transfer full): A reference to the requested asset or %NULL if
* an error happened
*/
GESUriClipAsset *
ges_uri_clip_asset_request_sync (const gchar * uri, GError ** error)
{
GError *lerror = NULL;
GESUriClipAsset *asset;
RequestSyncData data = { 0, };
asset = GES_URI_CLIP_ASSET (ges_asset_request (GES_TYPE_URI_CLIP, uri,
&lerror));
if (asset)
return asset;
data.ml = g_main_loop_new (NULL, TRUE);
ges_asset_request_async (GES_TYPE_URI_CLIP, uri, NULL,
(GAsyncReadyCallback) asset_ready_cb, &data);
g_main_loop_run (data.ml);
g_main_loop_unref (data.ml);
if (data.error) {
GST_ERROR ("Got an error requesting asset: %s", data.error->message);
if (error != NULL)
g_propagate_error (error, data.error);
return NULL;
}
return GES_URI_CLIP_ASSET (data.asset);
}
/**
* ges_uri_clip_asset_class_set_timeout:
* @klass: The #GESUriClipAssetClass on which to set the discoverer timeout
* @timeout: The timeout to set
*
* Sets the timeout of #GESUriClipAsset loading
*
* Deprecated: 1.24: ges_discoverer_manager_set_timeout() should be used instead
*/
void
ges_uri_clip_asset_class_set_timeout (GESUriClipAssetClass * klass,
GstClockTime timeout)
{
g_return_if_fail (GES_IS_URI_CLIP_ASSET_CLASS (klass));
ges_discoverer_manager_set_timeout (ges_discoverer_manager_get_default (),
timeout);
}
/**
* ges_uri_clip_asset_get_stream_assets:
* @self: A #GESUriClipAsset
*
* Get the GESUriSourceAsset @self containes
*
* Returns: (transfer none) (element-type GESUriSourceAsset): a
* #GList of #GESUriSourceAsset
*/
const GList *
ges_uri_clip_asset_get_stream_assets (GESUriClipAsset * self)
{
g_return_val_if_fail (GES_IS_URI_CLIP_ASSET (self), FALSE);
return self->priv->asset_trackfilesources;
}
/*****************************************************************
* GESUriSourceAsset implementation *
*****************************************************************/
G_DEFINE_TYPE_WITH_PRIVATE (GESUriSourceAsset, ges_uri_source_asset,
GES_TYPE_TRACK_ELEMENT_ASSET);
static GESExtractable *
_extract (GESAsset * asset, GError ** error)
{
gchar *uri = NULL;
GESTrackElement *trackelement;
GESUriSourceAssetPrivate *priv = GES_URI_SOURCE_ASSET (asset)->priv;
if (GST_IS_DISCOVERER_STREAM_INFO (priv->sinfo) == FALSE) {
GST_WARNING_OBJECT (asset, "Can not extract as no strean info set");
return NULL;
}
if (priv->uri == NULL) {
GST_WARNING_OBJECT (asset, "Can not extract as no uri set");
return NULL;
}
uri = g_strdup (priv->uri);
if (g_str_has_prefix (priv->uri, GES_MULTI_FILE_URI_PREFIX))
trackelement = GES_TRACK_ELEMENT (ges_multi_file_source_new (uri));
else if (GST_IS_DISCOVERER_VIDEO_INFO (priv->sinfo))
trackelement = GES_TRACK_ELEMENT (ges_video_uri_source_new (uri));
else
trackelement = GES_TRACK_ELEMENT (ges_audio_uri_source_new (uri));
ges_track_element_set_track_type (trackelement,
ges_track_element_asset_get_track_type (GES_TRACK_ELEMENT_ASSET (asset)));
g_free (uri);
return GES_EXTRACTABLE (trackelement);
}
static void
ges_uri_source_asset_dispose (GObject * object)
{
GESUriSourceAsset *self = GES_URI_SOURCE_ASSET (object);
GESUriSourceAssetPrivate *priv = self->priv;
gst_clear_object (&priv->sinfo);
G_OBJECT_CLASS (ges_uri_source_asset_parent_class)->dispose (object);
}
static void
ges_uri_source_asset_class_init (GESUriSourceAssetClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = ges_uri_source_asset_dispose;
GES_ASSET_CLASS (klass)->extract = _extract;
GES_TRACK_ELEMENT_ASSET_CLASS (klass)->get_natural_framerate =
ges_uri_source_asset_get_natural_framerate;
}
static void
ges_uri_source_asset_init (GESUriSourceAsset * self)
{
GESUriSourceAssetPrivate *priv;
priv = self->priv = ges_uri_source_asset_get_instance_private (self);
priv->sinfo = NULL;
priv->creator_asset = NULL;
priv->uri = NULL;
}
/**
* ges_uri_source_asset_get_stream_info:
* @asset: A #GESUriClipAsset
*
* Get the #GstDiscovererStreamInfo user by @asset
*
* Returns: (transfer none): a #GESUriClipAsset
*/
GstDiscovererStreamInfo *
ges_uri_source_asset_get_stream_info (GESUriSourceAsset * asset)
{
g_return_val_if_fail (GES_IS_URI_SOURCE_ASSET (asset), NULL);
return asset->priv->sinfo;
}
const gchar *
ges_uri_source_asset_get_stream_uri (GESUriSourceAsset * asset)
{
g_return_val_if_fail (GES_IS_URI_SOURCE_ASSET (asset), NULL);
return asset->priv->uri;
}
/**
* ges_uri_source_asset_get_filesource_asset:
* @asset: A #GESUriClipAsset
*
* Get the #GESUriClipAsset @self is contained in
*
* Returns: a #GESUriClipAsset
*/
const GESUriClipAsset *
ges_uri_source_asset_get_filesource_asset (GESUriSourceAsset * asset)
{
g_return_val_if_fail (GES_IS_URI_SOURCE_ASSET (asset), NULL);
return asset->priv->creator_asset;
}
/**
* ges_uri_source_asset_is_image:
* @asset: A #GESUriClipAsset
*
* Check if @asset contains a single image
*
* Returns: %TRUE if the video stream corresponds to an image (i.e. only
* contains one frame)
*
* Since: 1.18
*/
gboolean
ges_uri_source_asset_is_image (GESUriSourceAsset * asset)
{
g_return_val_if_fail (GES_IS_URI_SOURCE_ASSET (asset), FALSE);
if (!GST_IS_DISCOVERER_VIDEO_INFO (asset->priv->sinfo))
return FALSE;
return gst_discoverer_video_info_is_image ((GstDiscovererVideoInfo *)
asset->priv->sinfo);
}
void
_ges_uri_asset_cleanup (void)
{
if (parent_newparent_table) {
g_hash_table_destroy (parent_newparent_table);
parent_newparent_table = NULL;
}
gst_clear_object (&GES_URI_CLIP_ASSET_CLASS (g_type_class_peek
(GES_TYPE_URI_CLIP_ASSET))->discoverer);
ges_discoverer_manager_cleanup ();
}
gboolean
_ges_uri_asset_ensure_setup (gpointer uriasset_class)
{
GESUriClipAssetClass *klass;
GError *err;
GstClockTime timeout;
const gchar *timeout_str;
GstDiscoverer *discoverer = NULL;
g_return_val_if_fail (GES_IS_URI_CLIP_ASSET_CLASS (uriasset_class), FALSE);
klass = GES_URI_CLIP_ASSET_CLASS (uriasset_class);
timeout = DEFAULT_DISCOVERY_TIMEOUT;
errno = 0;
timeout_str = g_getenv ("GES_DISCOVERY_TIMEOUT");
if (timeout_str)
timeout = g_ascii_strtod (timeout_str, NULL) * GST_SECOND;
else
errno = 10;
if (errno)
timeout = DEFAULT_DISCOVERY_TIMEOUT;
/* The class structure keeps weak pointers on the discoverers so they
* can be properly cleaned up in _ges_uri_asset_cleanup(). */
if (!klass->discoverer) {
GESDiscovererManager *manager = ges_discoverer_manager_get_default ();
ges_discoverer_manager_set_timeout (manager, timeout);
g_signal_connect (manager, "discovered",
G_CALLBACK (discoverer_discovered_cb), NULL);
discoverer = gst_discoverer_new (timeout, &err);
if (!discoverer) {
GST_ERROR ("Could not create discoverer: %s", err->message);
g_error_free (err);
return FALSE;
}
/* Keep legacy handling of discoverer, even if not used */
klass->discoverer = klass->sync_discoverer = discoverer;
g_object_add_weak_pointer (G_OBJECT (discoverer),
(gpointer *) & klass->discoverer);
g_object_add_weak_pointer (G_OBJECT (discoverer),
(gpointer *) & klass->sync_discoverer);
g_signal_connect (klass->discoverer, "discovered",
G_CALLBACK (klass->discovered), NULL);
gst_discoverer_start (klass->discoverer);
}
/* We just start the discoverer and let it live */
if (parent_newparent_table == NULL) {
parent_newparent_table = g_hash_table_new_full (g_file_hash,
(GEqualFunc) g_file_equal, g_object_unref, g_object_unref);
}
return TRUE;
}