gstreamer/ges/ges-xml-formatter.c
Thibault Saunier 24e2c88180 track-element: Add an API to list all set ControlBinding
API:
    ges_track_element_get_all_control_bindings
2014-11-10 16:22:40 +01:00

1339 lines
43 KiB
C

/* Gstreamer Editing Services
*
* Copyright (C) <2012> Thibault Saunier <thibault.saunier@collabora.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.
*/
/* TODO Determine error codes numbers */
#include <string.h>
#include <errno.h>
#include <locale.h>
#include "ges.h"
#include "ges-internal.h"
#define parent_class ges_xml_formatter_parent_class
G_DEFINE_TYPE (GESXmlFormatter, ges_xml_formatter, GES_TYPE_BASE_XML_FORMATTER);
#define API_VERSION 0
#define MINOR_VERSION 1
#define VERSION 0.1
#define COLLECT_STR_OPT (G_MARKUP_COLLECT_STRING | G_MARKUP_COLLECT_OPTIONAL)
#define _GET_PRIV(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GES_TYPE_XML_FORMATTER, GESXmlFormatterPrivate))
struct _GESXmlFormatterPrivate
{
gboolean ges_opened;
gboolean project_opened;
GString *str;
};
static inline void
_parse_ges_element (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
GESXmlFormatter * self, GError ** error)
{
const gchar *version, *properties;
guint api_version, min_version;
gchar **split_version = NULL;
if (g_strcmp0 (element_name, "ges")) {
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Missing <ges> element'", element_name);
return;
}
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error, G_MARKUP_COLLECT_STRING, "version", &version,
COLLECT_STR_OPT, "properties", &properties,
G_MARKUP_COLLECT_INVALID)) {
return;
}
split_version = g_strsplit (version, ".", 2);
if (split_version[1] == NULL)
goto failed;
errno = 0;
api_version = g_ascii_strtoull (split_version[0], NULL, 10);
if (errno || api_version != API_VERSION)
goto stroull_failed;
min_version = g_ascii_strtoull (split_version[1], NULL, 10);
if (min_version > MINOR_VERSION)
goto failed;
_GET_PRIV (self)->ges_opened = TRUE;
g_strfreev (split_version);
return;
failed:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', %s wrong version'", element_name, version);
if (split_version)
g_strfreev (split_version);
return;
stroull_failed:
GST_WARNING_OBJECT (self, "Error while strtoull: %s", g_strerror (errno));
goto failed;
}
static inline void
_parse_project (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
GESXmlFormatter * self, GError ** error)
{
const gchar *metadatas = NULL, *properties;
GESXmlFormatterPrivate *priv = _GET_PRIV (self);
if (g_strcmp0 (element_name, "project")) {
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Missing project element'", element_name);
} else {
priv->project_opened = TRUE;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
COLLECT_STR_OPT, "properties", &properties,
COLLECT_STR_OPT, "metadatas", &metadatas, G_MARKUP_COLLECT_INVALID))
return;
if (GES_FORMATTER (self)->project && metadatas)
ges_meta_container_add_metas_from_string (GES_META_CONTAINER
(GES_FORMATTER (self)->project), metadatas);
}
}
static inline void
_parse_encoding_profile (GMarkupParseContext * context,
const gchar * element_name, const gchar ** attribute_names,
const gchar ** attribute_values, GESXmlFormatter * self, GError ** error)
{
GstCaps *capsformat = NULL;
const gchar *name, *description, *type, *preset = NULL, *preset_name =
NULL, *format;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
G_MARKUP_COLLECT_STRING, "name", &name,
G_MARKUP_COLLECT_STRING, "description", &description,
G_MARKUP_COLLECT_STRING, "type", &type,
COLLECT_STR_OPT, "preset", &preset,
COLLECT_STR_OPT, "preset-name", &preset_name,
COLLECT_STR_OPT, "format", &format, G_MARKUP_COLLECT_INVALID))
return;
if (format)
capsformat = gst_caps_from_string (format);
ges_base_xml_formatter_add_encoding_profile (GES_BASE_XML_FORMATTER (self),
type, NULL, name, description, capsformat, preset, preset_name, 0, 0,
NULL, 0, FALSE, NULL, error);
}
static inline void
_parse_stream_profile (GMarkupParseContext * context,
const gchar * element_name, const gchar ** attribute_names,
const gchar ** attribute_values, GESXmlFormatter * self, GError ** error)
{
gboolean variableframerate = FALSE;
guint id = 0, presence = 0, pass = 0;
GstCaps *format_caps = NULL, *restriction_caps = NULL;
const gchar *parent, *strid, *type, *strpresence, *format = NULL,
*name = NULL, *description = NULL, *preset, *preset_name =
NULL, *restriction = NULL, *strpass = NULL, *strvariableframerate = NULL;
/* FIXME Looks like there is a bug in that function, if we put the parent
* at the beginning it set %NULL and not the real value... :/ */
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
G_MARKUP_COLLECT_STRING, "id", &strid,
G_MARKUP_COLLECT_STRING, "type", &type,
G_MARKUP_COLLECT_STRING, "presence", &strpresence,
COLLECT_STR_OPT, "format", &format,
COLLECT_STR_OPT, "name", &name,
COLLECT_STR_OPT, "description", &description,
COLLECT_STR_OPT, "preset", &preset,
COLLECT_STR_OPT, "preset-name", &preset_name,
COLLECT_STR_OPT, "restriction", &restriction,
COLLECT_STR_OPT, "pass", &strpass,
COLLECT_STR_OPT, "variableframerate", &strvariableframerate,
G_MARKUP_COLLECT_STRING, "parent", &parent, G_MARKUP_COLLECT_INVALID))
return;
errno = 0;
id = g_ascii_strtoll (strid, NULL, 10);
if (errno)
goto convertion_failed;
if (strpresence) {
presence = g_ascii_strtoll (strpresence, NULL, 10);
if (errno)
goto convertion_failed;
}
if (strpass) {
pass = g_ascii_strtoll (strpass, NULL, 10);
if (errno)
goto convertion_failed;
}
if (strvariableframerate) {
variableframerate = g_ascii_strtoll (strvariableframerate, NULL, 10);
if (errno)
goto convertion_failed;
}
if (format)
format_caps = gst_caps_from_string (format);
if (restriction)
restriction_caps = gst_caps_from_string (restriction);
ges_base_xml_formatter_add_encoding_profile (GES_BASE_XML_FORMATTER (self),
type, parent, name, description, format_caps, preset, preset_name, id,
presence, restriction_caps, pass, variableframerate, NULL, error);
return;
convertion_failed:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Wrong property type, error: %s'", element_name,
g_strerror (errno));
return;
}
static inline void
_parse_timeline (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
GESXmlFormatter * self, GError ** error)
{
const gchar *metadatas = NULL, *properties = NULL;
GESTimeline *timeline = GES_FORMATTER (self)->timeline;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
COLLECT_STR_OPT, "properties", &properties,
COLLECT_STR_OPT, "metadatas", &metadatas, G_MARKUP_COLLECT_INVALID))
return;
if (timeline == NULL)
return;
ges_base_xml_formatter_set_timeline_properties (GES_BASE_XML_FORMATTER (self),
timeline, properties, metadatas);
}
static inline void
_parse_asset (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
GESXmlFormatter * self, GError ** error)
{
GType extractable_type;
const gchar *id, *extractable_type_name, *metadatas = NULL, *properties =
NULL;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error, G_MARKUP_COLLECT_STRING, "id", &id,
G_MARKUP_COLLECT_STRING, "extractable-type-name",
&extractable_type_name,
COLLECT_STR_OPT, "properties", &properties,
COLLECT_STR_OPT, "metadatas", &metadatas, G_MARKUP_COLLECT_INVALID))
return;
extractable_type = g_type_from_name (extractable_type_name);
if (extractable_type == G_TYPE_NONE)
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s' invalid extractable_type %s'",
element_name, extractable_type_name);
else if (!g_type_is_a (extractable_type, GES_TYPE_EXTRACTABLE))
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', %s not an extractable_type'",
element_name, extractable_type_name);
else {
GstStructure *props = NULL;
if (properties)
props = gst_structure_from_string (properties, NULL);
ges_base_xml_formatter_add_asset (GES_BASE_XML_FORMATTER (self), id,
extractable_type, props, metadatas, error);
if (props)
gst_structure_free (props);
}
}
static inline void
_parse_track (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
GESXmlFormatter * self, GError ** error)
{
GstCaps *caps;
GESTrackType track_type;
GstStructure *props = NULL;
const gchar *strtrack_type, *strcaps, *strtrack_id, *metadatas =
NULL, *properties = NULL;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
G_MARKUP_COLLECT_STRING, "track-type", &strtrack_type,
G_MARKUP_COLLECT_STRING, "track-id", &strtrack_id,
COLLECT_STR_OPT, "properties", &properties,
COLLECT_STR_OPT, "metadatas", &metadatas,
G_MARKUP_COLLECT_STRING, "caps", &strcaps, G_MARKUP_COLLECT_INVALID))
return;
if ((caps = gst_caps_from_string (strcaps)) == NULL)
goto wrong_caps;
errno = 0;
track_type = g_ascii_strtoll (strtrack_type, NULL, 10);
if (errno)
goto convertion_failed;
if (properties) {
props = gst_structure_from_string (properties, NULL);
}
ges_base_xml_formatter_add_track (GES_BASE_XML_FORMATTER (self), track_type,
caps, strtrack_id, props, metadatas, error);
if (props)
gst_structure_free (props);
return;
wrong_caps:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Can not create caps: %s'", element_name, strcaps);
return;
convertion_failed:
gst_caps_unref (caps);
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Wrong property type, error: %s'", element_name,
g_strerror (errno));
return;
}
static inline void
_parse_layer (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
GESXmlFormatter * self, GError ** error)
{
GstStructure *props = NULL;
guint priority;
GType extractable_type = G_TYPE_NONE;
const gchar *metadatas = NULL, *properties = NULL, *strprio = NULL,
*extractable_type_name;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
G_MARKUP_COLLECT_STRING, "priority", &strprio,
COLLECT_STR_OPT, "extractable-type-name", &extractable_type_name,
COLLECT_STR_OPT, "properties", &properties,
COLLECT_STR_OPT, "metadatas", &metadatas, G_MARKUP_COLLECT_INVALID))
return;
if (extractable_type_name) {
extractable_type = g_type_from_name (extractable_type_name);
if (extractable_type == G_TYPE_NONE) {
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s' invalid extractable_type %s'",
element_name, extractable_type_name);
return;
} else if (!g_type_is_a (extractable_type, GES_TYPE_EXTRACTABLE)) {
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', %s not an extractable_type'",
element_name, extractable_type_name);
return;
}
}
if (properties) {
props = gst_structure_from_string (properties, NULL);
if (props == NULL)
goto wrong_properties;
}
errno = 0;
priority = g_ascii_strtoll (strprio, NULL, 10);
if (errno)
goto convertion_failed;
ges_base_xml_formatter_add_layer (GES_BASE_XML_FORMATTER (self),
extractable_type, priority, props, metadatas, error);
done:
if (props)
gst_structure_free (props);
return;
convertion_failed:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Wrong property type, error: %s'", element_name,
g_strerror (errno));
goto done;
wrong_properties:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', wrong layer properties '%s', could no be deserialized",
element_name, properties);
}
static inline void
_parse_clip (GMarkupParseContext * context,
const gchar * element_name, const gchar ** attribute_names,
const gchar ** attribute_values, GESXmlFormatter * self, GError ** error)
{
GType type;
GstStructure *props = NULL;
GESTrackType track_types;
GstClockTime start, inpoint = 0, duration, layer_prio;
const gchar *strid, *asset_id, *strstart, *strin, *strduration, *strrate,
*strtrack_types, *strtype, *metadatas = NULL, *properties =
NULL, *strlayer_prio;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
G_MARKUP_COLLECT_STRING, "id", &strid,
G_MARKUP_COLLECT_STRING, "type-name", &strtype,
G_MARKUP_COLLECT_STRING, "start", &strstart,
G_MARKUP_COLLECT_STRING, "duration", &strduration,
G_MARKUP_COLLECT_STRING, "asset-id", &asset_id,
G_MARKUP_COLLECT_STRING, "track-types", &strtrack_types,
G_MARKUP_COLLECT_STRING, "layer-priority", &strlayer_prio,
COLLECT_STR_OPT, "properties", &properties,
COLLECT_STR_OPT, "metadatas", &metadatas,
COLLECT_STR_OPT, "rate", &strrate,
COLLECT_STR_OPT, "inpoint", &strin, G_MARKUP_COLLECT_INVALID)) {
return;
}
type = g_type_from_name (strtype);
if (!g_type_is_a (type, GES_TYPE_CLIP))
goto wrong_type;
errno = 0;
track_types = g_ascii_strtoll (strtrack_types, NULL, 10);
if (errno)
goto convertion_failed;
layer_prio = g_ascii_strtoll (strlayer_prio, NULL, 10);
if (errno)
goto convertion_failed;
if (strin) {
inpoint = g_ascii_strtoull (strin, NULL, 10);
if (errno)
goto convertion_failed;
}
start = g_ascii_strtoull (strstart, NULL, 10);
if (errno)
goto convertion_failed;
duration = g_ascii_strtoull (strduration, NULL, 10);
if (errno)
goto convertion_failed;
if (properties) {
props = gst_structure_from_string (properties, NULL);
if (props == NULL)
goto wrong_properties;
}
ges_base_xml_formatter_add_clip (GES_BASE_XML_FORMATTER (self),
strid, asset_id, type, start, inpoint, duration, layer_prio,
track_types, props, metadatas, error);
if (props)
gst_structure_free (props);
return;
wrong_properties:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Clip %s properties '%s', could no be deserialized",
element_name, asset_id, properties);
return;
convertion_failed:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Wrong property type, error: %s'", element_name,
g_strerror (errno));
return;
wrong_type:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', %s not a GESClip'", element_name, strtype);
}
static inline void
_parse_binding (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
GESXmlFormatter * self, GError ** error)
{
const gchar *type = NULL, *source_type = NULL, *timed_values =
NULL, *property_name = NULL, *mode = NULL, *track_id = NULL;
gchar **pairs, **tmp;
gchar *pair;
GSList *list = NULL;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
G_MARKUP_COLLECT_STRING, "type", &type,
G_MARKUP_COLLECT_STRING, "source_type", &source_type,
G_MARKUP_COLLECT_STRING, "property", &property_name,
G_MARKUP_COLLECT_STRING, "mode", &mode,
G_MARKUP_COLLECT_STRING, "track_id", &track_id,
G_MARKUP_COLLECT_STRING, "values", &timed_values,
G_MARKUP_COLLECT_INVALID)) {
return;
}
pairs = g_strsplit (timed_values, " ", 0);
for (tmp = pairs; tmp != NULL; tmp += 1) {
gchar **value_pair;
pair = *tmp;
if (pair == NULL)
break;
if (strlen (pair)) {
GstTimedValue *value;
value = g_slice_new (GstTimedValue);
value_pair = g_strsplit (pair, ":", 0);
value->timestamp = g_ascii_strtoull (value_pair[0], NULL, 10);
value->value = g_ascii_strtod (value_pair[1], NULL);
list = g_slist_append (list, value);
g_strfreev (value_pair);
}
}
g_strfreev (pairs);
ges_base_xml_formatter_add_control_binding (GES_BASE_XML_FORMATTER (self),
type,
source_type,
property_name, (gint) g_ascii_strtoll (mode, NULL, 10), track_id, list);
}
static inline void
_parse_source (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
GESXmlFormatter * self, GError ** error)
{
GstStructure *children_props = NULL;
const gchar *track_id = NULL, *children_properties = NULL;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
G_MARKUP_COLLECT_STRING, "track-id", &track_id,
COLLECT_STR_OPT, "children-properties", &children_properties,
G_MARKUP_COLLECT_INVALID)) {
return;
}
if (children_properties) {
children_props = gst_structure_from_string (children_properties, NULL);
if (children_props == NULL)
goto wrong_children_properties;
}
ges_base_xml_formatter_add_source (GES_BASE_XML_FORMATTER (self), track_id,
children_props);
if (children_props)
gst_structure_free (children_props);
return;
wrong_children_properties:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', children properties '%s', could no be deserialized",
element_name, children_properties);
}
static inline void
_parse_effect (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
GESXmlFormatter * self, GError ** error)
{
GType type;
GstStructure *children_props = NULL, *props = NULL;
const gchar *asset_id = NULL, *strtype = NULL, *track_id =
NULL, *metadatas = NULL, *properties = NULL, *track_type = NULL,
*children_properties = NULL, *clip_id;
if (!g_markup_collect_attributes (element_name, attribute_names,
attribute_values, error,
COLLECT_STR_OPT, "metadatas", &metadatas,
G_MARKUP_COLLECT_STRING, "asset-id", &asset_id,
G_MARKUP_COLLECT_STRING, "clip-id", &clip_id,
G_MARKUP_COLLECT_STRING, "type-name", &strtype,
G_MARKUP_COLLECT_STRING, "track-id", &track_id,
COLLECT_STR_OPT, "children-properties", &children_properties,
COLLECT_STR_OPT, "track-type", &track_type,
COLLECT_STR_OPT, "properties", &properties,
G_MARKUP_COLLECT_INVALID)) {
return;
}
type = g_type_from_name (strtype);
if (!g_type_is_a (type, GES_TYPE_BASE_EFFECT))
goto wrong_type;
if (children_properties) {
children_props = gst_structure_from_string (children_properties, NULL);
if (children_props == NULL)
goto wrong_children_properties;
}
if (properties) {
props = gst_structure_from_string (properties, NULL);
if (props == NULL)
goto wrong_properties;
}
ges_base_xml_formatter_add_track_element (GES_BASE_XML_FORMATTER (self),
type, asset_id, track_id, clip_id, children_props, props, metadatas,
error);
out:
if (props)
gst_structure_free (props);
if (children_props)
gst_structure_free (children_props);
return;
wrong_properties:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Effect %s properties '%s', could no be deserialized",
element_name, asset_id, properties);
goto out;
wrong_children_properties:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', Effect %s children properties '%s', could no be deserialized",
element_name, asset_id, children_properties);
goto out;
wrong_type:
g_set_error (error, G_MARKUP_ERROR,
G_MARKUP_ERROR_INVALID_CONTENT,
"element '%s', %s not a GESBaseEffect'", element_name, strtype);
}
static void
_parse_element_start (GMarkupParseContext * context, const gchar * element_name,
const gchar ** attribute_names, const gchar ** attribute_values,
gpointer self, GError ** error)
{
GESXmlFormatterPrivate *priv = _GET_PRIV (self);
if (!G_UNLIKELY (priv->ges_opened))
_parse_ges_element (context, element_name, attribute_names,
attribute_values, self, error);
else if (!G_UNLIKELY (priv->project_opened))
_parse_project (context, element_name, attribute_names, attribute_values,
self, error);
else if (g_strcmp0 (element_name, "encoding-profile") == 0)
_parse_encoding_profile (context, element_name, attribute_names,
attribute_values, self, error);
else if (g_strcmp0 (element_name, "stream-profile") == 0)
_parse_stream_profile (context, element_name, attribute_names,
attribute_values, self, error);
else if (g_strcmp0 (element_name, "timeline") == 0)
_parse_timeline (context, element_name, attribute_names, attribute_values,
self, error);
else if (g_strcmp0 (element_name, "asset") == 0)
_parse_asset (context, element_name, attribute_names, attribute_values,
self, error);
else if (g_strcmp0 (element_name, "track") == 0)
_parse_track (context, element_name, attribute_names,
attribute_values, self, error);
else if (g_strcmp0 (element_name, "layer") == 0)
_parse_layer (context, element_name, attribute_names,
attribute_values, self, error);
else if (g_strcmp0 (element_name, "clip") == 0)
_parse_clip (context, element_name, attribute_names,
attribute_values, self, error);
else if (g_strcmp0 (element_name, "source") == 0)
_parse_source (context, element_name, attribute_names,
attribute_values, self, error);
else if (g_strcmp0 (element_name, "effect") == 0)
_parse_effect (context, element_name, attribute_names,
attribute_values, self, error);
else if (g_strcmp0 (element_name, "binding") == 0)
_parse_binding (context, element_name, attribute_names,
attribute_values, self, error);
else
GST_LOG_OBJECT (self, "Element %s not handled", element_name);
}
static void
_parse_element_end (GMarkupParseContext * context,
const gchar * element_name, gpointer self, GError ** error)
{
/*GESXmlFormatterPrivate *priv = _GET_PRIV (self); */
}
static void
_error_parsing (GMarkupParseContext * context, GError * error,
gpointer user_data)
{
GST_WARNING ("Error accured when parsing %s", error->message);
}
/***********************************************
* *
* Saving implementation *
* *
***********************************************/
/* XML writting utils */
static inline void
append_escaped (GString * str, gchar * tmpstr)
{
g_string_append (str, tmpstr);
g_free (tmpstr);
}
static inline gboolean
_can_serialize_spec (GParamSpec * spec)
{
if (!(spec->flags & G_PARAM_WRITABLE)) {
GST_DEBUG ("%s from %s is not writable",
spec->name, g_type_name (spec->owner_type));
return FALSE;
} else if (spec->flags & G_PARAM_CONSTRUCT_ONLY) {
GST_DEBUG ("%s from %s is construct only",
spec->name, g_type_name (spec->owner_type));
return FALSE;
} else if (spec->flags & GES_PARAM_NO_SERIALIZATION &&
g_type_is_a (spec->owner_type, GES_TYPE_TIMELINE_ELEMENT)) {
GST_DEBUG ("%s from %s is set as GES_PARAM_NO_SERIALIZATION",
spec->name, g_type_name (spec->owner_type));
return FALSE;
} else if (g_type_is_a (G_PARAM_SPEC_VALUE_TYPE (spec), G_TYPE_OBJECT)) {
GST_DEBUG ("%s from %s contains GObject, can't serialize that.",
spec->name, g_type_name (spec->owner_type));
return FALSE;
} else if ((g_type_is_a (spec->owner_type, GST_TYPE_OBJECT) &&
!g_strcmp0 (spec->name, "name"))) {
GST_DEBUG ("We do not want to serialize the name of GstObjects.");
return FALSE;
} else if (G_PARAM_SPEC_VALUE_TYPE (spec) == G_TYPE_GTYPE) {
GST_DEBUG ("%s from %s contains a GType, can't serialize.",
spec->name, g_type_name (spec->owner_type));
return FALSE;
}
return TRUE;
}
static inline void
_init_value_from_spec_for_serialization (GValue * value, GParamSpec * spec)
{
if (g_type_is_a (spec->value_type, G_TYPE_ENUM) ||
g_type_is_a (spec->value_type, G_TYPE_FLAGS))
g_value_init (value, G_TYPE_INT);
else
g_value_init (value, spec->value_type);
}
static gchar *
_serialize_properties (GObject * object, const gchar * fieldname, ...)
{
gchar *ret;
guint n_props, j;
GParamSpec *spec, **pspecs;
GObjectClass *class = G_OBJECT_GET_CLASS (object);
GstStructure *structure = gst_structure_new_empty ("properties");
pspecs = g_object_class_list_properties (class, &n_props);
for (j = 0; j < n_props; j++) {
GValue val = { 0 };
spec = pspecs[j];
if (spec->value_type == GST_TYPE_CAPS) {
GstCaps *caps;
g_object_get (object, spec->name, &caps, NULL);
gst_structure_set (structure, spec->name, G_TYPE_STRING,
gst_caps_to_string (caps), NULL);
} else if (_can_serialize_spec (spec)) {
_init_value_from_spec_for_serialization (&val, spec);
g_object_get_property (object, spec->name, &val);
gst_structure_set_value (structure, spec->name, &val);
g_value_unset (&val);
}
}
g_free (pspecs);
if (fieldname) {
va_list varargs;
va_start (varargs, fieldname);
gst_structure_remove_fields_valist (structure, fieldname, varargs);
va_end (varargs);
}
ret = gst_structure_to_string (structure);
gst_structure_free (structure);
return ret;
}
static inline void
_save_assets (GString * str, GESProject * project)
{
char *properties, *metas;
GESAsset *asset;
GList *assets, *tmp;
assets = ges_project_list_assets (project, GES_TYPE_EXTRACTABLE);
for (tmp = assets; tmp; tmp = tmp->next) {
asset = GES_ASSET (tmp->data);
properties = _serialize_properties (G_OBJECT (asset), NULL);
metas = ges_meta_container_metas_to_string (GES_META_CONTAINER (asset));
append_escaped (str,
g_markup_printf_escaped
(" <asset id='%s' extractable-type-name='%s' properties='%s' metadatas='%s' />\n",
ges_asset_get_id (asset),
g_type_name (ges_asset_get_extractable_type (asset)), properties,
metas));
g_free (properties);
g_free (metas);
}
g_list_free_full (assets, gst_object_unref);
}
static inline void
_save_tracks (GString * str, GESTimeline * timeline)
{
gchar *strtmp, *metas;
GESTrack *track;
GList *tmp, *tracks;
char *properties;
guint nb_tracks = 0;
tracks = ges_timeline_get_tracks (timeline);
for (tmp = tracks; tmp; tmp = tmp->next) {
track = GES_TRACK (tmp->data);
properties = _serialize_properties (G_OBJECT (track), NULL);
strtmp = gst_caps_to_string (ges_track_get_caps (track));
metas = ges_meta_container_metas_to_string (GES_META_CONTAINER (track));
append_escaped (str,
g_markup_printf_escaped
(" <track caps='%s' track-type='%i' track-id='%i' properties='%s' metadatas='%s'/>\n",
strtmp, track->type, nb_tracks++, properties, metas));
g_free (strtmp);
g_free (metas);
g_free (properties);
}
g_list_free_full (tracks, gst_object_unref);
}
static inline void
_save_children_properties (GString * str, GESTrackElement * trackelement)
{
GstStructure *structure;
GParamSpec **pspecs, *spec;
guint i, n_props;
pspecs = ges_track_element_list_children_properties (trackelement, &n_props);
structure = gst_structure_new_empty ("properties");
for (i = 0; i < n_props; i++) {
GValue val = { 0 };
spec = pspecs[i];
if (_can_serialize_spec (spec)) {
_init_value_from_spec_for_serialization (&val, spec);
ges_track_element_get_child_property_by_pspec (trackelement, spec, &val);
gst_structure_set_value (structure, spec->name, &val);
g_value_unset (&val);
}
g_param_spec_unref (spec);
}
g_free (pspecs);
append_escaped (str,
g_markup_printf_escaped (" children-properties='%s'",
gst_structure_to_string (structure)));
gst_structure_free (structure);
}
/* TODO : Use this function for every track element with controllable properties */
static inline void
_save_keyframes (GString * str, GESTrackElement * trackelement, gint index)
{
GHashTable *bindings_hashtable;
GHashTableIter iter;
gpointer key, value;
bindings_hashtable =
ges_track_element_get_all_control_bindings (trackelement);
g_hash_table_iter_init (&iter, bindings_hashtable);
/* We iterate over the bindings, and save the timed values */
while (g_hash_table_iter_next (&iter, &key, &value)) {
if (GST_IS_DIRECT_CONTROL_BINDING ((GstControlBinding *) value)) {
GstControlSource *source;
GstDirectControlBinding *binding;
binding = (GstDirectControlBinding *) value;
g_object_get (binding, "control-source", &source, NULL);
if (GST_IS_INTERPOLATION_CONTROL_SOURCE (source)) {
GList *timed_values, *tmp;
GstInterpolationMode mode;
append_escaped (str,
g_markup_printf_escaped
(" <binding type='direct' source_type='interpolation' property='%s'",
(gchar *) key));
g_object_get (source, "mode", &mode, NULL);
append_escaped (str, g_markup_printf_escaped (" mode='%d'", mode));
append_escaped (str, g_markup_printf_escaped (" track_id='%d'", index));
append_escaped (str, g_markup_printf_escaped (" values ='"));
timed_values =
gst_timed_value_control_source_get_all
(GST_TIMED_VALUE_CONTROL_SOURCE (source));
for (tmp = timed_values; tmp; tmp = tmp->next) {
gchar strbuf[G_ASCII_DTOSTR_BUF_SIZE];
GstTimedValue *value;
value = (GstTimedValue *) tmp->data;
append_escaped (str, g_markup_printf_escaped (" %" G_GUINT64_FORMAT
":%s ", value->timestamp, g_ascii_dtostr (strbuf,
G_ASCII_DTOSTR_BUF_SIZE, value->value)));
}
append_escaped (str, g_markup_printf_escaped ("'/>\n"));
} else
GST_DEBUG ("control source not in [interpolation]");
} else
GST_DEBUG ("Binding type not in [direct]");
}
}
static inline void
_save_effect (GString * str, guint clip_id, GESTrackElement * trackelement,
GESTimeline * timeline)
{
GESTrack *tck;
GList *tmp, *tracks;
gchar *properties, *metas;
guint track_id = 0;
tck = ges_track_element_get_track (trackelement);
if (tck == NULL) {
GST_WARNING_OBJECT (trackelement, " Not in any track, can not save it");
return;
}
tracks = ges_timeline_get_tracks (timeline);
for (tmp = tracks; tmp; tmp = tmp->next) {
if (tmp->data == tck)
break;
track_id++;
}
g_list_free_full (tracks, gst_object_unref);
properties = _serialize_properties (G_OBJECT (trackelement), "start",
"in-point", "duration", "locked", "max-duration", "name", NULL);
metas =
ges_meta_container_metas_to_string (GES_META_CONTAINER (trackelement));
append_escaped (str,
g_markup_printf_escaped (" <effect asset-id='%s' clip-id='%u'"
" type-name='%s' track-type='%i' track-id='%i' properties='%s' metadatas='%s'",
ges_extractable_get_id (GES_EXTRACTABLE (trackelement)), clip_id,
g_type_name (G_OBJECT_TYPE (trackelement)), tck->type, track_id,
properties, metas));
g_free (properties);
g_free (metas);
_save_children_properties (str, trackelement);
append_escaped (str, g_markup_printf_escaped (">\n"));
_save_keyframes (str, trackelement, -1);
append_escaped (str, g_markup_printf_escaped (" </effect>\n"));
}
static inline void
_save_layers (GString * str, GESTimeline * timeline)
{
gchar *properties, *metas;
GESLayer *layer;
GESClip *clip;
GList *tmplayer, *tmpclip, *clips;
guint nbclips = 0;
for (tmplayer = timeline->layers; tmplayer; tmplayer = tmplayer->next) {
guint priority;
layer = GES_LAYER (tmplayer->data);
priority = ges_layer_get_priority (layer);
properties = _serialize_properties (G_OBJECT (layer), "priority", NULL);
metas = ges_meta_container_metas_to_string (GES_META_CONTAINER (layer));
append_escaped (str,
g_markup_printf_escaped
(" <layer priority='%i' properties='%s' metadatas='%s'>\n",
priority, properties, metas));
g_free (properties);
g_free (metas);
clips = ges_layer_get_clips (layer);
for (tmpclip = clips; tmpclip; tmpclip = tmpclip->next) {
GList *effects, *tmpeffect;
GList *tmptrackelement;
GList *tracks;
clip = GES_CLIP (tmpclip->data);
effects = ges_clip_get_top_effects (clip);
/* We escape all mandatrorry properties that are handled sparetely
* and vtype for StandarTransition as it is the asset ID */
properties = _serialize_properties (G_OBJECT (clip),
"supported-formats", "rate", "in-point", "start", "duration",
"max-duration", "priority", "vtype", "uri", NULL);
append_escaped (str,
g_markup_printf_escaped (" <clip id='%i' asset-id='%s'"
" type-name='%s' layer-priority='%i' track-types='%i' start='%"
G_GUINT64_FORMAT "' duration='%" G_GUINT64_FORMAT "' inpoint='%"
G_GUINT64_FORMAT "' rate='%d' properties='%s' >\n", nbclips,
ges_extractable_get_id (GES_EXTRACTABLE (clip)),
g_type_name (G_OBJECT_TYPE (clip)), priority,
ges_clip_get_supported_formats (clip), _START (clip),
_DURATION (clip), _INPOINT (clip), 0, properties));
g_free (properties);
for (tmpeffect = effects; tmpeffect; tmpeffect = tmpeffect->next)
_save_effect (str, nbclips, GES_TRACK_ELEMENT (tmpeffect->data),
timeline);
tracks = ges_timeline_get_tracks (timeline);
for (tmptrackelement = GES_CONTAINER_CHILDREN (clip); tmptrackelement;
tmptrackelement = tmptrackelement->next) {
gint index;
if (!GES_IS_SOURCE (tmptrackelement->data))
continue;
index =
g_list_index (tracks,
ges_track_element_get_track (tmptrackelement->data));
append_escaped (str,
g_markup_printf_escaped (" <source track-id='%i'", index));
_save_children_properties (str, tmptrackelement->data);
append_escaped (str, g_markup_printf_escaped (">\n"));
_save_keyframes (str, tmptrackelement->data, index);
append_escaped (str, g_markup_printf_escaped (" </source>\n"));
}
g_list_free_full (tracks, gst_object_unref);
g_string_append (str, " </clip>\n");
nbclips++;
}
g_string_append (str, " </layer>\n");
}
}
static inline void
_save_timeline (GString * str, GESTimeline * timeline)
{
gchar *properties = NULL, *metas = NULL;
properties = _serialize_properties (G_OBJECT (timeline), "update", "name",
"async-handling", "message-forward", NULL);
ges_meta_container_set_uint64 (GES_META_CONTAINER (timeline), "duration",
ges_timeline_get_duration (timeline));
metas = ges_meta_container_metas_to_string (GES_META_CONTAINER (timeline));
append_escaped (str,
g_markup_printf_escaped
(" <timeline properties='%s' metadatas='%s'>\n", properties, metas));
_save_tracks (str, timeline);
_save_layers (str, timeline);
g_string_append (str, " </timeline>\n");
g_free (properties);
g_free (metas);
}
static void
_save_stream_profiles (GString * str, GstEncodingProfile * sprof,
const gchar * profilename, guint id)
{
gchar *tmpc;
GstCaps *tmpcaps;
const gchar *preset, *preset_name, *name, *description;
append_escaped (str,
g_markup_printf_escaped
(" <stream-profile parent='%s' id='%d' type='%s' "
"presence='%d' ", profilename, id,
gst_encoding_profile_get_type_nick (sprof),
gst_encoding_profile_get_presence (sprof)));
tmpcaps = gst_encoding_profile_get_format (sprof);
if (tmpcaps) {
tmpc = gst_caps_to_string (tmpcaps);
append_escaped (str, g_markup_printf_escaped ("format='%s' ", tmpc));
gst_caps_unref (tmpcaps);
g_free (tmpc);
}
name = gst_encoding_profile_get_name (sprof);
if (name)
append_escaped (str, g_markup_printf_escaped ("name='%s' ", name));
description = gst_encoding_profile_get_description (sprof);
if (description)
append_escaped (str, g_markup_printf_escaped ("description='%s' ",
description));
preset = gst_encoding_profile_get_preset (sprof);
if (preset)
append_escaped (str, g_markup_printf_escaped ("preset='%s' ", preset));
preset_name = gst_encoding_profile_get_preset_name (sprof);
if (preset_name)
append_escaped (str, g_markup_printf_escaped ("preset-name='%s' ",
preset_name));
tmpcaps = gst_encoding_profile_get_restriction (sprof);
if (tmpcaps) {
tmpc = gst_caps_to_string (tmpcaps);
append_escaped (str, g_markup_printf_escaped ("restriction='%s' ", tmpc));
gst_caps_unref (tmpcaps);
g_free (tmpc);
}
if (GST_IS_ENCODING_VIDEO_PROFILE (sprof)) {
GstEncodingVideoProfile *vp = (GstEncodingVideoProfile *) sprof;
append_escaped (str,
g_markup_printf_escaped ("pass='%d' variableframerate='%i' ",
gst_encoding_video_profile_get_pass (vp),
gst_encoding_video_profile_get_variableframerate (vp)));
}
g_string_append (str, "/>\n");
}
static inline void
_save_encoding_profiles (GString * str, GESProject * project)
{
GstCaps *profformat;
const gchar *profname, *profdesc, *profpreset, *proftype, *profpresetname;
const GList *tmp;
for (tmp = ges_project_list_encoding_profiles (project); tmp; tmp = tmp->next) {
GstEncodingProfile *prof = GST_ENCODING_PROFILE (tmp->data);
profname = gst_encoding_profile_get_name (prof);
profdesc = gst_encoding_profile_get_description (prof);
profpreset = gst_encoding_profile_get_preset (prof);
profpresetname = gst_encoding_profile_get_preset_name (prof);
proftype = gst_encoding_profile_get_type_nick (prof);
append_escaped (str,
g_markup_printf_escaped
(" <encoding-profile name='%s' description='%s' type='%s' ",
profname, profdesc, proftype));
if (profpreset)
append_escaped (str, g_markup_printf_escaped ("preset='%s' ",
profpreset));
if (profpresetname)
append_escaped (str, g_markup_printf_escaped ("preset-name='%s' ",
profpresetname));
profformat = gst_encoding_profile_get_format (prof);
if (profformat) {
gchar *format = gst_caps_to_string (profformat);
append_escaped (str, g_markup_printf_escaped ("format='%s' ", format));
g_free (format);
gst_caps_unref (profformat);
}
g_string_append (str, ">\n");
if (GST_IS_ENCODING_CONTAINER_PROFILE (prof)) {
guint i = 0;
const GList *tmp2;
GstEncodingContainerProfile *container_prof;
container_prof = GST_ENCODING_CONTAINER_PROFILE (prof);
for (tmp2 = gst_encoding_container_profile_get_profiles (container_prof);
tmp2; tmp2 = tmp2->next, i++) {
GstEncodingProfile *sprof = (GstEncodingProfile *) tmp2->data;
_save_stream_profiles (str, sprof, profname, i);
}
}
append_escaped (str,
g_markup_printf_escaped (" </encoding-profile>\n"));
}
}
static GString *
_save (GESFormatter * formatter, GESTimeline * timeline, GError ** error)
{
GString *str;
GESProject *project;
gchar *properties = NULL, *metas = NULL;
GESXmlFormatterPrivate *priv;
priv = _GET_PRIV (formatter);
project = formatter->project;
str = priv->str = g_string_new (NULL);
g_string_append_printf (str, "<ges version='%i.%i'>\n", API_VERSION,
MINOR_VERSION);
properties = _serialize_properties (G_OBJECT (project), NULL);
metas = ges_meta_container_metas_to_string (GES_META_CONTAINER (project));
append_escaped (str,
g_markup_printf_escaped (" <project properties='%s' metadatas='%s'>\n",
properties, metas));
g_free (properties);
g_free (metas);
g_string_append (str, " <encoding-profiles>\n");
_save_encoding_profiles (str, project);
g_string_append (str, " </encoding-profiles>\n");
g_string_append (str, " <ressources>\n");
_save_assets (str, project);
g_string_append (str, " </ressources>\n");
_save_timeline (str, timeline);
g_string_append (str, "</project>\n</ges>");
priv->str = NULL;
return str;
}
/***********************************************
* *
* GObject virtual methods implementation *
* *
***********************************************/
static void
_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
}
static void
_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
}
static void
ges_xml_formatter_init (GESXmlFormatter * self)
{
GESXmlFormatterPrivate *priv = _GET_PRIV (self);
priv->project_opened = FALSE;
}
static void
ges_xml_formatter_class_init (GESXmlFormatterClass * self_class)
{
GObjectClass *object_class = G_OBJECT_CLASS (self_class);
GESBaseXmlFormatterClass *basexmlformatter_class;
basexmlformatter_class = GES_BASE_XML_FORMATTER_CLASS (self_class);
g_type_class_add_private (self_class, sizeof (GESXmlFormatterPrivate));
object_class->get_property = _get_property;
object_class->set_property = _set_property;
basexmlformatter_class->content_parser.start_element = _parse_element_start;
basexmlformatter_class->content_parser.end_element = _parse_element_end;
basexmlformatter_class->content_parser.text = NULL;
basexmlformatter_class->content_parser.passthrough = NULL;
basexmlformatter_class->content_parser.error = _error_parsing;
ges_formatter_class_register_metas (GES_FORMATTER_CLASS (self_class),
"ges", "GStreamer Editing Services project files",
"xges", "application/ges", VERSION, GST_RANK_PRIMARY);
basexmlformatter_class->save = _save;
}
#undef COLLECT_STR_OPT