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98 lines
3 KiB
C
98 lines
3 KiB
C
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/* GStreamer
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* Copyright (C) 2015 Sebastian Dröge <sebastian@centricular.com>
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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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#include "gstrtputils.h"
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typedef struct
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{
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GstElement *element;
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GstBuffer *outbuf;
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GQuark copy_tag;
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} CopyMetaData;
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static gboolean
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foreach_metadata_copy (GstBuffer * inbuf, GstMeta ** meta, gpointer user_data)
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{
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CopyMetaData *data = user_data;
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GstElement *element = data->element;
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GstBuffer *outbuf = data->outbuf;
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GQuark copy_tag = data->copy_tag;
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const GstMetaInfo *info = (*meta)->info;
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const gchar *const *tags = gst_meta_api_type_get_tags (info->api);
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if (!tags || (copy_tag != 0 && g_strv_length ((gchar **) tags) == 1
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&& gst_meta_api_type_has_tag (info->api, copy_tag))) {
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GstMetaTransformCopy copy_data = { FALSE, 0, -1 };
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GST_DEBUG_OBJECT (element, "copy metadata %s", g_type_name (info->api));
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/* simply copy then */
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info->transform_func (outbuf, *meta, inbuf,
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_gst_meta_transform_copy, ©_data);
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} else {
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GST_DEBUG_OBJECT (element, "not copying metadata %s",
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g_type_name (info->api));
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}
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return TRUE;
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}
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/* TODO: Should probably make copy_tag an array at some point */
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void
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gst_rtp_copy_meta (GstElement * element, GstBuffer * outbuf, GstBuffer * inbuf,
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GQuark copy_tag)
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{
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CopyMetaData data = { element, outbuf, copy_tag };
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gst_buffer_foreach_meta (inbuf, foreach_metadata_copy, &data);
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}
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typedef struct
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{
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GstElement *element;
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GQuark keep_tag;
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} DropMetaData;
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static gboolean
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foreach_metadata_drop (GstBuffer * inbuf, GstMeta ** meta, gpointer user_data)
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{
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DropMetaData *data = user_data;
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GstElement *element = data->element;
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GQuark keep_tag = data->keep_tag;
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const GstMetaInfo *info = (*meta)->info;
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const gchar *const *tags = gst_meta_api_type_get_tags (info->api);
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if (!tags || (keep_tag != 0 && g_strv_length ((gchar **) tags) == 1
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&& gst_meta_api_type_has_tag (info->api, keep_tag))) {
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GST_DEBUG_OBJECT (element, "keeping metadata %s", g_type_name (info->api));
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} else {
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GST_DEBUG_OBJECT (element, "dropping metadata %s", g_type_name (info->api));
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*meta = NULL;
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}
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return TRUE;
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}
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/* TODO: Should probably make keep_tag an array at some point */
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void
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gst_rtp_drop_meta (GstElement * element, GstBuffer * buf, GQuark keep_tag)
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{
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DropMetaData data = { element, keep_tag };
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gst_buffer_foreach_meta (buf, foreach_metadata_drop, &data);
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}
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