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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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161 lines
4.5 KiB
C
161 lines
4.5 KiB
C
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/* GStreamer
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*
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* Copyright (C) 2019 Collabora Ltd.
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* Author: Stéphane Cerveau <scerveau@collabora.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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#include "gstmpdhelper.h"
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#include "gstmpdbaseurlnode.h"
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#include <gst/pbutils/pbutils.h>
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#define GST_CAT_DEFAULT gst_dash_demux2_debug
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gboolean
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gst_mpd_helper_get_mpd_type (xmlNode * a_node,
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const gchar * property_name, GstMPDFileType * property_value)
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{
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xmlChar *prop_string;
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gboolean exists = FALSE;
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*property_value = GST_MPD_FILE_TYPE_STATIC; /* default */
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prop_string = xmlGetProp (a_node, (const xmlChar *) property_name);
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if (prop_string) {
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if (xmlStrcmp (prop_string, (xmlChar *) "OnDemand") == 0
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|| xmlStrcmp (prop_string, (xmlChar *) "static") == 0) {
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exists = TRUE;
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*property_value = GST_MPD_FILE_TYPE_STATIC;
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GST_LOG (" - %s: static", property_name);
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} else if (xmlStrcmp (prop_string, (xmlChar *) "Live") == 0
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|| xmlStrcmp (prop_string, (xmlChar *) "dynamic") == 0) {
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exists = TRUE;
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*property_value = GST_MPD_FILE_TYPE_DYNAMIC;
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GST_LOG (" - %s: dynamic", property_name);
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} else {
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GST_WARNING ("failed to parse MPD type property %s from xml string %s",
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property_name, prop_string);
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}
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xmlFree (prop_string);
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}
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return exists;
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}
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gboolean
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gst_mpd_helper_get_SAP_type (xmlNode * a_node,
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const gchar * property_name, GstMPDSAPType * property_value)
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{
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xmlChar *prop_string;
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guint prop_SAP_type = 0;
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gboolean exists = FALSE;
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prop_string = xmlGetProp (a_node, (const xmlChar *) property_name);
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if (prop_string) {
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if (sscanf ((gchar *) prop_string, "%u", &prop_SAP_type) == 1
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&& prop_SAP_type <= 6) {
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exists = TRUE;
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*property_value = (GstMPDSAPType) prop_SAP_type;
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GST_LOG (" - %s: %u", property_name, prop_SAP_type);
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} else {
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GST_WARNING
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("failed to parse unsigned integer property %s from xml string %s",
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property_name, prop_string);
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}
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xmlFree (prop_string);
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}
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return exists;
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}
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const gchar *
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gst_mpd_helper_mimetype_to_caps (const gchar * mimeType)
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{
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if (mimeType == NULL)
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return NULL;
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if (strcmp (mimeType, "video/mp2t") == 0) {
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return "video/mpegts, systemstream=(bool) true";
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} else if (strcmp (mimeType, "video/mp4") == 0) {
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return "video/quicktime";
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} else if (strcmp (mimeType, "audio/mp4") == 0) {
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return "audio/x-m4a";
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} else if (strcmp (mimeType, "text/vtt") == 0) {
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return "application/x-subtitle-vtt";
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} else
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return mimeType;
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}
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/* Some top-level mime types directly tell us which
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* codec is inside */
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GstCaps *
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gst_mpd_helper_mimetype_to_codec_caps (const gchar * mimeType)
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{
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if (mimeType == NULL)
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return NULL;
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if (strcmp (mimeType, "text/vtt") == 0)
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return gst_caps_new_empty_simple ("application/x-subtitle-vtt");
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return NULL;
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}
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/*
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* Combine a base url with the current stream base url from the list of
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* baseURLs. Takes ownership of base and returns a new base.
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*/
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GstUri *
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gst_mpd_helper_combine_urls (GstUri * base, GList * list, gchar ** query,
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guint idx)
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{
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GstMPDBaseURLNode *baseURL;
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GstUri *ret = base;
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if (list != NULL) {
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baseURL = g_list_nth_data (list, idx);
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if (!baseURL) {
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baseURL = list->data;
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}
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ret = gst_uri_from_string_with_base (base, baseURL->baseURL);
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gst_uri_unref (base);
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if (ret && query) {
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g_free (*query);
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*query = gst_uri_get_query_string (ret);
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if (*query) {
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ret = gst_uri_make_writable (ret);
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gst_uri_set_query_table (ret, NULL);
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}
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}
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}
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return ret;
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}
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/* comparison functions */
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int
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gst_mpd_helper_strncmp_ext (const char *s1, const char *s2)
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{
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if (s1 == NULL && s2 == NULL)
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return 0;
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if (s1 == NULL && s2 != NULL)
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return 1;
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if (s2 == NULL && s1 != NULL)
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return 1;
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return strncmp (s1, s2, strlen (s2));
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}
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