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4a402c1c7d
Found via `codespell` https://bugzilla.gnome.org/show_bug.cgi?id=795610
871 lines
21 KiB
C
871 lines
21 KiB
C
/* GStreamer
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* Copyright (C) 2013 Collabora Ltd.
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* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:gstcapsfeatures
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* @title: GstCapsFeatures
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* @short_description: A set of features in caps
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* @see_also: #GstCaps
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*
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* #GstCapsFeatures can optionally be set on a #GstCaps to add requirements
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* for additional features for a specific #GstStructure. Caps structures with
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* the same name but with a non-equal set of caps features are not compatible.
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* If a pad supports multiple sets of features it has to add multiple equal
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* structures with different feature sets to the caps.
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*
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* Empty #GstCapsFeatures are equivalent with the #GstCapsFeatures that only
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* contain #GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY. ANY #GstCapsFeatures as
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* created by gst_caps_features_new_any() are equal to any other #GstCapsFeatures
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* and can be used to specify that any #GstCapsFeatures would be supported, e.g.
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* for elements that don't touch buffer memory. #GstCaps with ANY #GstCapsFeatures
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* are considered non-fixed and during negotiation some #GstCapsFeatures have
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* to be selected.
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*
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* Examples for caps features would be the requirement of a specific #GstMemory
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* types or the requirement of having a specific #GstMeta on the buffer. Features
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* are given as a string of the format "memory:GstMemoryTypeName" or
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* "meta:GstMetaAPIName".
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*
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* Since: 1.2
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include "gst_private.h"
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#include "gstcapsfeatures.h"
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#include <gst/gst.h>
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GST_DEBUG_CATEGORY_STATIC (gst_caps_features_debug);
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#define GST_CAT_DEFAULT gst_caps_features_debug
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struct _GstCapsFeatures
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{
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GType type;
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gint *parent_refcount;
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GArray *array;
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gboolean is_any;
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};
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GType _gst_caps_features_type = 0;
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static gint static_caps_features_parent_refcount = G_MAXINT;
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GstCapsFeatures *_gst_caps_features_any = NULL;
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GstCapsFeatures *_gst_caps_features_memory_system_memory = NULL;
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static GQuark _gst_caps_feature_memory_system_memory = 0;
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G_DEFINE_BOXED_TYPE (GstCapsFeatures, gst_caps_features,
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gst_caps_features_copy, gst_caps_features_free);
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#define IS_MUTABLE(features) \
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(!features->parent_refcount || \
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g_atomic_int_get (features->parent_refcount) == 1)
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static void
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gst_caps_features_transform_to_string (const GValue * src_value,
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GValue * dest_value);
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void
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_priv_gst_caps_features_initialize (void)
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{
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GST_DEBUG_CATEGORY_INIT (gst_caps_features_debug, "caps-features", 0,
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"GstCapsFeatures debug");
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_gst_caps_features_type = gst_caps_features_get_type ();
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_gst_caps_feature_memory_system_memory =
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g_quark_from_static_string (GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY);
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g_value_register_transform_func (_gst_caps_features_type, G_TYPE_STRING,
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gst_caps_features_transform_to_string);
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_gst_caps_features_any = gst_caps_features_new_any ();
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gst_caps_features_set_parent_refcount (_gst_caps_features_any,
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&static_caps_features_parent_refcount);
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_gst_caps_features_memory_system_memory =
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gst_caps_features_new_id (_gst_caps_feature_memory_system_memory, 0);
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gst_caps_features_set_parent_refcount
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(_gst_caps_features_memory_system_memory,
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&static_caps_features_parent_refcount);
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}
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void
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_priv_gst_caps_features_cleanup (void)
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{
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gst_caps_features_set_parent_refcount (_gst_caps_features_any, NULL);
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gst_caps_features_free (_gst_caps_features_any);
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_gst_caps_features_any = NULL;
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gst_caps_features_set_parent_refcount
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(_gst_caps_features_memory_system_memory, NULL);
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gst_caps_features_free (_gst_caps_features_memory_system_memory);
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_gst_caps_features_memory_system_memory = NULL;
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}
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gboolean
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gst_is_caps_features (gconstpointer obj)
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{
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const GstCapsFeatures *features = obj;
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return (obj != NULL && features->type == _gst_caps_features_type);
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}
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static gboolean
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gst_caps_feature_name_is_valid (const gchar * feature)
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{
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#ifndef G_DISABLE_CHECKS
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while (TRUE) {
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if (g_ascii_isalpha (*feature))
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feature++;
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else if (*feature == ':')
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break;
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else
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return FALSE;
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}
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if (*feature != ':')
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return FALSE;
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feature++;
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if (*feature == '\0' || !g_ascii_isalpha (*feature))
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return FALSE;
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while (TRUE) {
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if (g_ascii_isalnum (*feature))
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feature++;
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else if (*feature == '\0')
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break;
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else
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return FALSE;
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}
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#endif
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return TRUE;
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}
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/**
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* gst_caps_features_new_empty:
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*
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* Creates a new, empty #GstCapsFeatures.
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*
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* Free-function: gst_caps_features_free
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*
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* Returns: (transfer full): a new, empty #GstCapsFeatures
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*
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* Since: 1.2
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*/
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GstCapsFeatures *
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gst_caps_features_new_empty (void)
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{
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GstCapsFeatures *features;
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features = g_slice_new (GstCapsFeatures);
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features->type = _gst_caps_features_type;
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features->parent_refcount = NULL;
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features->array = g_array_new (FALSE, FALSE, sizeof (GQuark));
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features->is_any = FALSE;
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GST_TRACE ("created caps features %p", features);
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return features;
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}
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/**
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* gst_caps_features_new_any:
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*
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* Creates a new, ANY #GstCapsFeatures. This will be equal
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* to any other #GstCapsFeatures but caps with these are
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* unfixed.
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*
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* Free-function: gst_caps_features_free
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*
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* Returns: (transfer full): a new, ANY #GstCapsFeatures
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*
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* Since: 1.2
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*/
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GstCapsFeatures *
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gst_caps_features_new_any (void)
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{
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GstCapsFeatures *features;
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features = gst_caps_features_new_empty ();
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features->is_any = TRUE;
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return features;
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}
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/**
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* gst_caps_features_new:
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* @feature1: name of first feature to set
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* @...: additional features
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*
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* Creates a new #GstCapsFeatures with the given features.
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* The last argument must be %NULL.
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*
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* Free-function: gst_caps_features_free
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*
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* Returns: (transfer full): a new, empty #GstCapsFeatures
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*
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* Since: 1.2
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*/
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GstCapsFeatures *
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gst_caps_features_new (const gchar * feature1, ...)
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{
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GstCapsFeatures *features;
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va_list varargs;
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g_return_val_if_fail (feature1 != NULL, NULL);
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va_start (varargs, feature1);
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features = gst_caps_features_new_valist (feature1, varargs);
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va_end (varargs);
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return features;
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}
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/**
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* gst_caps_features_new_valist:
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* @feature1: name of first feature to set
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* @varargs: variable argument list
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*
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* Creates a new #GstCapsFeatures with the given features.
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*
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* Free-function: gst_caps_features_free
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*
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* Returns: (transfer full): a new, empty #GstCapsFeatures
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*
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* Since: 1.2
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*/
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GstCapsFeatures *
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gst_caps_features_new_valist (const gchar * feature1, va_list varargs)
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{
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GstCapsFeatures *features;
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g_return_val_if_fail (feature1 != NULL, NULL);
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features = gst_caps_features_new_empty ();
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while (feature1) {
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gst_caps_features_add (features, feature1);
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feature1 = va_arg (varargs, const gchar *);
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}
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return features;
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}
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/**
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* gst_caps_features_new_id:
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* @feature1: name of first feature to set
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* @...: additional features
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*
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* Creates a new #GstCapsFeatures with the given features.
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* The last argument must be 0.
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*
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* Free-function: gst_caps_features_free
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*
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* Returns: (transfer full): a new, empty #GstCapsFeatures
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*
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* Since: 1.2
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*/
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GstCapsFeatures *
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gst_caps_features_new_id (GQuark feature1, ...)
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{
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GstCapsFeatures *features;
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va_list varargs;
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g_return_val_if_fail (feature1 != 0, NULL);
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va_start (varargs, feature1);
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features = gst_caps_features_new_id_valist (feature1, varargs);
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va_end (varargs);
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return features;
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}
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/**
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* gst_caps_features_new_id_valist:
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* @feature1: name of first feature to set
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* @varargs: variable argument list
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*
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* Creates a new #GstCapsFeatures with the given features.
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*
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* Free-function: gst_caps_features_free
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*
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* Returns: (transfer full): a new, empty #GstCapsFeatures
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*
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* Since: 1.2
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*/
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GstCapsFeatures *
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gst_caps_features_new_id_valist (GQuark feature1, va_list varargs)
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{
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GstCapsFeatures *features;
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g_return_val_if_fail (feature1 != 0, NULL);
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features = gst_caps_features_new_empty ();
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while (feature1) {
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gst_caps_features_add_id (features, feature1);
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feature1 = va_arg (varargs, GQuark);
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}
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return features;
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}
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/**
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* gst_caps_features_set_parent_refcount:
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* @features: a #GstCapsFeatures
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* @refcount: (in): a pointer to the parent's refcount
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*
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* Sets the parent_refcount field of #GstCapsFeatures. This field is used to
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* determine whether a caps features is mutable or not. This function should only be
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* called by code implementing parent objects of #GstCapsFeatures, as described in
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* the MT Refcounting section of the design documents.
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*
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* Returns: %TRUE if the parent refcount could be set.
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*
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* Since: 1.2
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*/
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gboolean
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gst_caps_features_set_parent_refcount (GstCapsFeatures * features,
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gint * refcount)
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{
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g_return_val_if_fail (features != NULL, FALSE);
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/* if we have a parent_refcount already, we can only clear
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* if with a NULL refcount */
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if (features->parent_refcount) {
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if (refcount != NULL) {
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g_return_val_if_fail (refcount == NULL, FALSE);
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return FALSE;
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}
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} else {
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if (refcount == NULL) {
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g_return_val_if_fail (refcount != NULL, FALSE);
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return FALSE;
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}
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}
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features->parent_refcount = refcount;
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return TRUE;
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}
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/**
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* gst_caps_features_copy:
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* @features: a #GstCapsFeatures to duplicate
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*
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* Duplicates a #GstCapsFeatures and all its values.
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*
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* Free-function: gst_caps_features_free
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*
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* Returns: (transfer full): a new #GstCapsFeatures.
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*
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* Since: 1.2
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*/
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GstCapsFeatures *
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gst_caps_features_copy (const GstCapsFeatures * features)
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{
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GstCapsFeatures *copy;
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guint i, n;
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g_return_val_if_fail (features != NULL, NULL);
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copy = gst_caps_features_new_empty ();
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n = gst_caps_features_get_size (features);
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for (i = 0; i < n; i++)
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gst_caps_features_add_id (copy, gst_caps_features_get_nth_id (features, i));
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copy->is_any = features->is_any;
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return copy;
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}
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/**
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* gst_caps_features_free:
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* @features: (in) (transfer full): the #GstCapsFeatures to free
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*
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* Frees a #GstCapsFeatures and all its values. The caps features must not
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* have a parent when this function is called.
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*
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* Since: 1.2
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*/
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void
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gst_caps_features_free (GstCapsFeatures * features)
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{
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g_return_if_fail (features != NULL);
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g_return_if_fail (features->parent_refcount == NULL);
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g_array_free (features->array, TRUE);
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#ifdef USE_POISONING
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memset (features, 0xff, sizeof (GstCapsFeatures));
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#endif
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GST_TRACE ("free caps features %p", features);
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g_slice_free (GstCapsFeatures, features);
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}
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/**
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* gst_caps_features_to_string:
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* @features: a #GstCapsFeatures
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*
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* Converts @features to a human-readable string representation.
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*
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* For debugging purposes its easier to do something like this:
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* |[<!-- language="C" -->
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* GST_LOG ("features is %" GST_PTR_FORMAT, features);
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* ]|
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* This prints the features in human readable form.
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*
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* Free-function: g_free
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*
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* Returns: (transfer full): a pointer to string allocated by g_malloc().
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* g_free() after usage.
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*
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* Since: 1.2
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*/
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gchar *
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gst_caps_features_to_string (const GstCapsFeatures * features)
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{
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GString *s;
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g_return_val_if_fail (features != NULL, NULL);
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s = g_string_sized_new (FEATURES_ESTIMATED_STRING_LEN (features));
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priv_gst_caps_features_append_to_gstring (features, s);
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return g_string_free (s, FALSE);
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}
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void
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priv_gst_caps_features_append_to_gstring (const GstCapsFeatures * features,
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GString * s)
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{
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guint i, n;
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g_return_if_fail (features != NULL);
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if (features->array->len == 0 && features->is_any) {
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g_string_append (s, "ANY");
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return;
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}
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n = features->array->len;
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for (i = 0; i < n; i++) {
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GQuark *quark = &g_array_index (features->array, GQuark, i);
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g_string_append (s, g_quark_to_string (*quark));
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if (i + 1 < n)
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g_string_append (s, ", ");
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}
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}
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/**
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* gst_caps_features_from_string:
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* @features: a string representation of a #GstCapsFeatures.
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*
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* Creates a #GstCapsFeatures from a string representation.
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*
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* Free-function: gst_caps_features_free
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*
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* Returns: (transfer full) (nullable): a new #GstCapsFeatures or
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* %NULL when the string could not be parsed. Free with
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* gst_caps_features_free() after use.
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*
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* Since: 1.2
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*/
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GstCapsFeatures *
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gst_caps_features_from_string (const gchar * features)
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{
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GstCapsFeatures *ret;
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gboolean escape = FALSE;
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const gchar *features_orig = features;
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const gchar *feature;
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ret = gst_caps_features_new_empty ();
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if (!features || *features == '\0')
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return ret;
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if (strcmp (features, "ANY") == 0) {
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ret->is_any = TRUE;
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return ret;
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}
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/* Skip trailing spaces */
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while (*features == ' ')
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features++;
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feature = features;
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while (TRUE) {
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gchar c = *features;
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if (c == '\\') {
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escape = TRUE;
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features++;
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continue;
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} else if ((!escape && c == ',') || c == '\0') {
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guint len = features - feature + 1;
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gchar *tmp;
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gchar *p;
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if (len == 1) {
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g_warning ("Failed deserialize caps features '%s'", features_orig);
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|
gst_caps_features_free (ret);
|
|
return NULL;
|
|
}
|
|
|
|
tmp = g_malloc (len);
|
|
memcpy (tmp, feature, len - 1);
|
|
tmp[len - 1] = '\0';
|
|
|
|
p = tmp + len - 1;
|
|
while (*p == ' ') {
|
|
*p = '\0';
|
|
p--;
|
|
}
|
|
|
|
if (strstr (tmp, " ") != NULL || *tmp == '\0') {
|
|
g_free (tmp);
|
|
g_warning ("Failed deserialize caps features '%s'", features_orig);
|
|
gst_caps_features_free (ret);
|
|
return NULL;
|
|
}
|
|
|
|
gst_caps_features_add (ret, tmp);
|
|
g_free (tmp);
|
|
|
|
if (c == '\0')
|
|
break;
|
|
|
|
/* Skip to the next value */
|
|
features++;
|
|
while (*features == ' ')
|
|
features++;
|
|
feature = features;
|
|
} else {
|
|
escape = FALSE;
|
|
features++;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_get_size:
|
|
* @features: a #GstCapsFeatures.
|
|
*
|
|
* Returns the number of features in @features.
|
|
*
|
|
* Returns: The number of features in @features.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
guint
|
|
gst_caps_features_get_size (const GstCapsFeatures * features)
|
|
{
|
|
g_return_val_if_fail (features != NULL, 0);
|
|
|
|
return features->array->len;
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_get_nth:
|
|
* @features: a #GstCapsFeatures.
|
|
* @i: index of the feature
|
|
*
|
|
* Returns the @i-th feature of @features.
|
|
*
|
|
* Returns: (nullable): The @i-th feature of @features.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
const gchar *
|
|
gst_caps_features_get_nth (const GstCapsFeatures * features, guint i)
|
|
{
|
|
const gchar *feature;
|
|
GQuark quark;
|
|
|
|
g_return_val_if_fail (features != NULL, NULL);
|
|
|
|
quark = gst_caps_features_get_nth_id (features, i);
|
|
if (!quark)
|
|
return NULL;
|
|
|
|
feature = g_quark_to_string (quark);
|
|
return feature;
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_get_nth_id:
|
|
* @features: a #GstCapsFeatures.
|
|
* @i: index of the feature
|
|
*
|
|
* Returns the @i-th feature of @features.
|
|
*
|
|
* Returns: The @i-th feature of @features.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
GQuark
|
|
gst_caps_features_get_nth_id (const GstCapsFeatures * features, guint i)
|
|
{
|
|
GQuark *quark;
|
|
|
|
g_return_val_if_fail (features != NULL, 0);
|
|
g_return_val_if_fail (i < features->array->len, 0);
|
|
|
|
quark = &g_array_index (features->array, GQuark, i);
|
|
|
|
return *quark;
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_contains:
|
|
* @features: a #GstCapsFeatures.
|
|
* @feature: a feature
|
|
*
|
|
* Check if @features contains @feature.
|
|
*
|
|
* Returns: %TRUE if @features contains @feature.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
gboolean
|
|
gst_caps_features_contains (const GstCapsFeatures * features,
|
|
const gchar * feature)
|
|
{
|
|
g_return_val_if_fail (features != NULL, FALSE);
|
|
g_return_val_if_fail (feature != NULL, FALSE);
|
|
|
|
return gst_caps_features_contains_id (features,
|
|
g_quark_from_string (feature));
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_contains_id:
|
|
* @features: a #GstCapsFeatures.
|
|
* @feature: a feature
|
|
*
|
|
* Check if @features contains @feature.
|
|
*
|
|
* Returns: %TRUE if @features contains @feature.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
gboolean
|
|
gst_caps_features_contains_id (const GstCapsFeatures * features, GQuark feature)
|
|
{
|
|
guint i, n;
|
|
|
|
g_return_val_if_fail (features != NULL, FALSE);
|
|
g_return_val_if_fail (feature != 0, FALSE);
|
|
|
|
if (features->is_any)
|
|
return TRUE;
|
|
|
|
n = features->array->len;
|
|
if (n == 0)
|
|
return feature == _gst_caps_feature_memory_system_memory;
|
|
|
|
for (i = 0; i < n; i++) {
|
|
if (gst_caps_features_get_nth_id (features, i) == feature)
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_is_equal:
|
|
* @features1: a #GstCapsFeatures.
|
|
* @features2: a #GstCapsFeatures.
|
|
*
|
|
* Check if @features1 and @features2 are equal.
|
|
*
|
|
* Returns: %TRUE if @features1 and @features2 are equal.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
gboolean
|
|
gst_caps_features_is_equal (const GstCapsFeatures * features1,
|
|
const GstCapsFeatures * features2)
|
|
{
|
|
guint i, n;
|
|
|
|
g_return_val_if_fail (features1 != NULL, FALSE);
|
|
g_return_val_if_fail (features2 != NULL, FALSE);
|
|
|
|
if (features1->is_any || features2->is_any)
|
|
return TRUE;
|
|
|
|
/* Check for the sysmem==empty case */
|
|
if (features1->array->len == 0 && features2->array->len == 0)
|
|
return TRUE;
|
|
if (features1->array->len == 0 && features2->array->len == 1
|
|
&& gst_caps_features_contains_id (features2,
|
|
_gst_caps_feature_memory_system_memory))
|
|
return TRUE;
|
|
if (features2->array->len == 0 && features1->array->len == 1
|
|
&& gst_caps_features_contains_id (features1,
|
|
_gst_caps_feature_memory_system_memory))
|
|
return TRUE;
|
|
|
|
if (features1->array->len != features2->array->len)
|
|
return FALSE;
|
|
|
|
n = features1->array->len;
|
|
for (i = 0; i < n; i++)
|
|
if (!gst_caps_features_contains_id (features2,
|
|
gst_caps_features_get_nth_id (features1, i)))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_is_any:
|
|
* @features: a #GstCapsFeatures.
|
|
*
|
|
* Check if @features is %GST_CAPS_FEATURES_ANY.
|
|
*
|
|
* Returns: %TRUE if @features is %GST_CAPS_FEATURES_ANY.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
gboolean
|
|
gst_caps_features_is_any (const GstCapsFeatures * features)
|
|
{
|
|
g_return_val_if_fail (features != NULL, FALSE);
|
|
|
|
return features->is_any;
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_add:
|
|
* @features: a #GstCapsFeatures.
|
|
* @feature: a feature.
|
|
*
|
|
* Adds @feature to @features.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
gst_caps_features_add (GstCapsFeatures * features, const gchar * feature)
|
|
{
|
|
g_return_if_fail (features != NULL);
|
|
g_return_if_fail (IS_MUTABLE (features));
|
|
g_return_if_fail (feature != NULL);
|
|
g_return_if_fail (!features->is_any);
|
|
|
|
gst_caps_features_add_id (features, g_quark_from_string (feature));
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_add_id:
|
|
* @features: a #GstCapsFeatures.
|
|
* @feature: a feature.
|
|
*
|
|
* Adds @feature to @features.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
gst_caps_features_add_id (GstCapsFeatures * features, GQuark feature)
|
|
{
|
|
g_return_if_fail (features != NULL);
|
|
g_return_if_fail (IS_MUTABLE (features));
|
|
g_return_if_fail (feature != 0);
|
|
g_return_if_fail (!features->is_any);
|
|
|
|
if (!gst_caps_feature_name_is_valid (g_quark_to_string (feature))) {
|
|
g_warning ("Invalid caps feature name: %s", g_quark_to_string (feature));
|
|
return;
|
|
}
|
|
|
|
/* If features is empty it will contain sysmem, however
|
|
* we want to add it explicitly if it is attempted to be
|
|
* added as first features
|
|
*/
|
|
if (features->array->len > 0
|
|
&& gst_caps_features_contains_id (features, feature))
|
|
return;
|
|
|
|
g_array_append_val (features->array, feature);
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_remove:
|
|
* @features: a #GstCapsFeatures.
|
|
* @feature: a feature.
|
|
*
|
|
* Removes @feature from @features.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
gst_caps_features_remove (GstCapsFeatures * features, const gchar * feature)
|
|
{
|
|
g_return_if_fail (features != NULL);
|
|
g_return_if_fail (IS_MUTABLE (features));
|
|
g_return_if_fail (feature != NULL);
|
|
|
|
gst_caps_features_remove_id (features, g_quark_from_string (feature));
|
|
}
|
|
|
|
/**
|
|
* gst_caps_features_remove_id:
|
|
* @features: a #GstCapsFeatures.
|
|
* @feature: a feature.
|
|
*
|
|
* Removes @feature from @features.
|
|
*
|
|
* Since: 1.2
|
|
*/
|
|
void
|
|
gst_caps_features_remove_id (GstCapsFeatures * features, GQuark feature)
|
|
{
|
|
guint i, n;
|
|
|
|
g_return_if_fail (features != NULL);
|
|
g_return_if_fail (IS_MUTABLE (features));
|
|
g_return_if_fail (feature != 0);
|
|
|
|
n = features->array->len;
|
|
for (i = 0; i < n; i++) {
|
|
GQuark quark = gst_caps_features_get_nth_id (features, i);
|
|
|
|
if (quark == feature) {
|
|
g_array_remove_index_fast (features->array, i);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_caps_features_transform_to_string (const GValue * src_value,
|
|
GValue * dest_value)
|
|
{
|
|
g_return_if_fail (src_value != NULL);
|
|
g_return_if_fail (dest_value != NULL);
|
|
|
|
dest_value->data[0].v_pointer =
|
|
gst_caps_features_to_string (src_value->data[0].v_pointer);
|
|
}
|