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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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2575 lines
74 KiB
C
2575 lines
74 KiB
C
/*
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* gstmpegtsdescriptor.c -
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* Copyright (C) 2013 Edward Hervey
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*
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* Authors:
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* Edward Hervey <edward@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 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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include "mpegts.h"
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#include "gstmpegts-private.h"
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/**
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* SECTION:gst-dvb-descriptor
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* @title: DVB variants of MPEG-TS descriptors
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* @short_description: Descriptors for the various DVB specifications
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* @include: gst/mpegts/mpegts.h
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*
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*/
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/*
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* TODO
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*
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* * Add common validation code for data presence and minimum/maximum expected
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* size.
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* * Add parsing methods for the following descriptors that were previously
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* handled in mpegtsbase:
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* * GST_MTS_DESC_DVB_DATA_BROADCAST_ID
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* * GST_MTS_DESC_DVB_CAROUSEL_IDENTIFIER
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*/
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#define BCD_UN(a) ((a) & 0x0f)
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#define BCD_DEC(a) (((a) >> 4) & 0x0f)
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#define BCD(a) (BCD_UN(a) + 10 * BCD_DEC(a))
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#define BCD_16(a) (BCD(a[1]) + 100 * BCD(a[0]))
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#define BCD_28(a) (BCD_DEC(a[3]) + 10 * BCD(a[2]) + 1000 * BCD(a[1]) + 100000 * BCD(a[0]))
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#define BCD_32(a) (BCD(a[3]) + 100 * BCD(a[2]) + 10000 * BCD(a[1]) + 1000000 * BCD(a[0]))
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#define DEFINE_STATIC_COPY_FUNCTION(type, name) \
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static type * _##name##_copy (type * source) \
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{ \
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return g_memdup2 (source, sizeof (type)); \
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}
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#define DEFINE_STATIC_FREE_FUNCTION(type, name) \
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static void _##name##_free (type * source) \
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{ \
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g_free (source); \
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}
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/* GST_MTS_DESC_DVB_NETWORK_NAME (0x40) */
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/**
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* gst_mpegts_descriptor_parse_dvb_network_name:
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* @descriptor: a %GST_MTS_DESC_DVB_NETWORK_NAME #GstMpegtsDescriptor
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* @name: (out) (transfer full): the extracted name
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*
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* Parses out the dvb network name from the @descriptor:
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*
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* Returns: %TRUE if the parsing happened correctly, else %FALSE.
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*/
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gboolean
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gst_mpegts_descriptor_parse_dvb_network_name (const GstMpegtsDescriptor *
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descriptor, gchar ** name)
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{
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g_return_val_if_fail (descriptor != NULL && name != NULL, FALSE);
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/* We need at least one byte of data for the string */
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__common_desc_checks (descriptor, GST_MTS_DESC_DVB_NETWORK_NAME, 1, FALSE);
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*name = get_encoding_and_convert ((gchar *) descriptor->data + 2,
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descriptor->data[1]);
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return TRUE;
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}
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/**
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* gst_mpegts_descriptor_from_dvb_network_name:
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* @name: the network name to set
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*
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* Creates a #GstMpegtsDescriptor to be a %GST_MTS_DESC_DVB_NETWORK_NAME,
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* with the network name @name. The data field of the #GstMpegtsDescriptor
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* will be allocated, and transferred to the caller.
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*
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* Returns: (transfer full): the #GstMpegtsDescriptor or %NULL on fail
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*/
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GstMpegtsDescriptor *
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gst_mpegts_descriptor_from_dvb_network_name (const gchar * name)
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{
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GstMpegtsDescriptor *descriptor;
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guint8 *converted_name;
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gsize size;
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g_return_val_if_fail (name != NULL, NULL);
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converted_name = dvb_text_from_utf8 (name, &size);
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if (size >= 256) {
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g_free (converted_name);
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return NULL;
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}
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if (!converted_name) {
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GST_WARNING ("Could not find proper encoding for string `%s`", name);
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return NULL;
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}
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descriptor = _new_descriptor (GST_MTS_DESC_DVB_NETWORK_NAME, size);
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memcpy (descriptor->data + 2, converted_name, size);
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g_free (converted_name);
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return descriptor;
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}
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/* GST_MTS_DESC_DVB_SERVICE_LIST (0x41) */
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DEFINE_STATIC_COPY_FUNCTION (GstMpegtsDVBServiceListItem,
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gst_mpegts_dvb_service_list_item);
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DEFINE_STATIC_FREE_FUNCTION (GstMpegtsDVBServiceListItem,
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gst_mpegts_dvb_service_list_item);
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G_DEFINE_BOXED_TYPE (GstMpegtsDVBServiceListItem,
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gst_mpegts_dvb_service_list_item,
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(GBoxedCopyFunc) _gst_mpegts_dvb_service_list_item_copy,
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(GFreeFunc) _gst_mpegts_dvb_service_list_item_free);
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/**
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* gst_mpegts_descriptor_parse_dvb_service_list:
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* @descriptor: a %GST_MTS_DESC_DVB_SERVICE_LIST #GstMpegtsDescriptor
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* @list: (out) (transfer full) (element-type GstMpegtsDVBServiceListItem):
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* the list of services
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*
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* Parses out a list of services from the @descriptor:
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*
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* Returns: %TRUE if the parsing happened correctly, else %FALSE.
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*/
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gboolean
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gst_mpegts_descriptor_parse_dvb_service_list (const GstMpegtsDescriptor *
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descriptor, GPtrArray ** list)
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{
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guint8 *data, i;
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g_return_val_if_fail (descriptor != NULL && list != NULL, FALSE);
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/* a entry has 3 bytes, 2 for service id, 1 for service type */
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__common_desc_checks (descriptor, GST_MTS_DESC_DVB_SERVICE_LIST, 3, FALSE);
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data = (guint8 *) descriptor->data + 2;
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*list = g_ptr_array_new_with_free_func ((GDestroyNotify)
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_gst_mpegts_dvb_service_list_item_free);
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for (i = 0; i < descriptor->length - 2; i += 3) {
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GstMpegtsDVBServiceListItem *item = g_new0 (GstMpegtsDVBServiceListItem, 1);
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g_ptr_array_add (*list, item);
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item->service_id = GST_READ_UINT16_BE (data);
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data += 2;
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item->type = *data;
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data += 1;
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}
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return TRUE;
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}
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/* GST_MTS_DESC_DVB_STUFFING (0x42) */
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/**
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* gst_mpegts_descriptor_parse_dvb_stuffing:
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* @descriptor: a %GST_MTS_DESC_DVB_STUFFING #GstMpegtsDescriptor
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* @stuffing_bytes: (out) (transfer full): the stuffing bytes
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*
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* Parses out the stuffing bytes from the @descriptor.
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*
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* Returns: %TRUE if the parsing happened correctly, else %FALSE.
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*/
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gboolean
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gst_mpegts_descriptor_parse_dvb_stuffing (const GstMpegtsDescriptor *
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descriptor, guint8 ** stuffing_bytes)
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{
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guint8 *data;
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g_return_val_if_fail (descriptor != NULL && stuffing_bytes != NULL, FALSE);
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__common_desc_check_base (descriptor, GST_MTS_DESC_DVB_STUFFING, FALSE);
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data = (guint8 *) descriptor->data + 2;
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*stuffing_bytes = g_memdup2 (data, descriptor->length);
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return TRUE;
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}
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/* GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM (0x43) */
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DEFINE_STATIC_COPY_FUNCTION (GstMpegtsSatelliteDeliverySystemDescriptor,
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gst_mpegts_satellite_delivery_system_descriptor);
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DEFINE_STATIC_FREE_FUNCTION (GstMpegtsSatelliteDeliverySystemDescriptor,
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gst_mpegts_satellite_delivery_system_descriptor);
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G_DEFINE_BOXED_TYPE (GstMpegtsSatelliteDeliverySystemDescriptor,
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gst_mpegts_satellite_delivery_system_descriptor,
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(GBoxedCopyFunc) _gst_mpegts_satellite_delivery_system_descriptor_copy,
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(GFreeFunc) _gst_mpegts_satellite_delivery_system_descriptor_free);
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/**
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* gst_mpegts_descriptor_parse_satellite_delivery_system:
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* @descriptor: a %GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM #GstMpegtsDescriptor
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* @res: (out) (transfer none): the #GstMpegtsSatelliteDeliverySystemDescriptor to fill
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*
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* Extracts the satellite delivery system information from @descriptor.
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*
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* Returns: %TRUE if parsing succeeded, else %FALSE.
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*/
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gboolean
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gst_mpegts_descriptor_parse_satellite_delivery_system (const GstMpegtsDescriptor
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* descriptor, GstMpegtsSatelliteDeliverySystemDescriptor * res)
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{
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guint8 *data;
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guint8 tmp;
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g_return_val_if_fail (descriptor != NULL && res != NULL, FALSE);
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/* This descriptor is always 11 bytes long */
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__common_desc_checks_exact (descriptor,
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GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM, 11, FALSE);
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data = (guint8 *) descriptor->data + 2;
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/* BCD coded frequency in GHz (decimal point occurs after the 3rd character)
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* So direct BCD gives us units of (GHz / 100 000) = 10 kHz*/
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res->frequency = BCD_32 (data) * 10;
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data += 4;
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/* BCD codec position in degrees (float pointer after the 3rd character) */
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res->orbital_position = (BCD_16 (data)) / 10.0;
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data += 2;
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tmp = *data;
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res->west_east = (tmp & 0x80) == 0x80;
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res->polarization = (tmp >> 7) & 0x03;
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res->modulation_system = (tmp & 0x04) == 0x04;
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if (res->modulation_system)
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res->roll_off = (tmp >> 3 & 0x03);
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else
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res->roll_off = GST_MPEGTS_ROLLOFF_AUTO;
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switch (tmp & 0x03) {
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case 0x00:
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res->modulation_type = GST_MPEGTS_MODULATION_QAM_AUTO;
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break;
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case 0x01:
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res->modulation_type = GST_MPEGTS_MODULATION_QPSK;
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break;
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case 0x02:
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res->modulation_type = GST_MPEGTS_MODULATION_PSK_8;
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break;
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case 0x03:
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res->modulation_type = GST_MPEGTS_MODULATION_QAM_16;
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break;
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default:
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res->modulation_type = GST_MPEGTS_MODULATION_QAM_AUTO;
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break;
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}
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data += 1;
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/* symbol_rate is in Msymbols/ (decimal point occurs after 3rd character) */
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/* So direct BCD gives us units of (Msymbol / 10 000) = 100 sym/s */
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res->symbol_rate = BCD_28 (data) * 100;
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data += 3;
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/* fec_inner */
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switch (*data >> 4) {
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case 0x01:
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res->fec_inner = GST_MPEGTS_FEC_1_2;
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break;
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case 0x02:
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res->fec_inner = GST_MPEGTS_FEC_2_3;
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break;
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case 0x03:
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res->fec_inner = GST_MPEGTS_FEC_3_4;
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break;
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case 0x04:
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res->fec_inner = GST_MPEGTS_FEC_5_6;
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break;
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case 0x05:
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res->fec_inner = GST_MPEGTS_FEC_7_8;
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break;
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case 0x06:
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res->fec_inner = GST_MPEGTS_FEC_8_9;
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break;
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case 0x07:
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res->fec_inner = GST_MPEGTS_FEC_3_5;
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break;
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case 0x08:
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res->fec_inner = GST_MPEGTS_FEC_4_5;
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break;
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case 0x09:
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res->fec_inner = GST_MPEGTS_FEC_9_10;
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break;
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case 0x0f:
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res->fec_inner = GST_MPEGTS_FEC_NONE;
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break;
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default:
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res->fec_inner = GST_MPEGTS_FEC_AUTO;
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break;
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}
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return TRUE;
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}
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/* GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM (0x44) */
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DEFINE_STATIC_COPY_FUNCTION (GstMpegtsCableDeliverySystemDescriptor,
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gst_mpegts_dvb_cable_delivery_system_descriptor);
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void gst_mpegts_dvb_cable_delivery_system_descriptor_free
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(GstMpegtsCableDeliverySystemDescriptor * source)
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{
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g_free (source);
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}
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G_DEFINE_BOXED_TYPE (GstMpegtsCableDeliverySystemDescriptor,
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gst_mpegts_dvb_cable_delivery_system_descriptor,
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(GBoxedCopyFunc) _gst_mpegts_dvb_cable_delivery_system_descriptor_copy,
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(GFreeFunc) gst_mpegts_dvb_cable_delivery_system_descriptor_free);
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/**
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* gst_mpegts_descriptor_parse_cable_delivery_system:
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* @descriptor: a %GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM #GstMpegtsDescriptor
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* @res: (out) (transfer none): the #GstMpegtsCableDeliverySystemDescriptor to fill
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*
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* Extracts the cable delivery system information from @descriptor.
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*
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* Returns: %TRUE if parsing succeeded, else %FALSE.
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*/
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gboolean
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gst_mpegts_descriptor_parse_cable_delivery_system (const GstMpegtsDescriptor *
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descriptor, GstMpegtsCableDeliverySystemDescriptor * res)
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{
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guint8 *data;
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g_return_val_if_fail (descriptor != NULL && res != NULL, FALSE);
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/* This descriptor is always 11 bytes long */
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__common_desc_checks_exact (descriptor,
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GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM, 11, FALSE);
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data = (guint8 *) descriptor->data + 2;
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/* BCD in MHz, decimal place after the fourth character */
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res->frequency = BCD_32 (data) * 100;
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data += 5;
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/* fec_out (4bits) */
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res->outer_fec = *data++ & 0x0f;
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switch (*data) {
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case 0x00:
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res->modulation = GST_MPEGTS_MODULATION_NONE;
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break;
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case 0x01:
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res->modulation = GST_MPEGTS_MODULATION_QAM_16;
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break;
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case 0x02:
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res->modulation = GST_MPEGTS_MODULATION_QAM_32;
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break;
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case 0x03:
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res->modulation = GST_MPEGTS_MODULATION_QAM_64;
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break;
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case 0x04:
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res->modulation = GST_MPEGTS_MODULATION_QAM_128;
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break;
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case 0x05:
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res->modulation = GST_MPEGTS_MODULATION_QAM_256;
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break;
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default:
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GST_WARNING ("Unsupported cable modulation type: 0x%02x", *data);
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res->modulation = GST_MPEGTS_MODULATION_NONE;
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break;
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}
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data += 1;
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/* symbol_rate is in Msymbols/ (decimal point occurs after 3rd character) */
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/* So direct BCD gives us units of (Msymbol / 10 000) = 100 sym/s */
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res->symbol_rate = BCD_28 (data) * 100;
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data += 3;
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/* fec_inner */
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switch (*data & 0xf) {
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case 0x00:
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res->fec_inner = GST_MPEGTS_FEC_AUTO;
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break;
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case 0x01:
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res->fec_inner = GST_MPEGTS_FEC_1_2;
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break;
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case 0x02:
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res->fec_inner = GST_MPEGTS_FEC_2_3;
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break;
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case 0x03:
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res->fec_inner = GST_MPEGTS_FEC_3_4;
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break;
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case 0x04:
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res->fec_inner = GST_MPEGTS_FEC_5_6;
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break;
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case 0x05:
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res->fec_inner = GST_MPEGTS_FEC_7_8;
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break;
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case 0x06:
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res->fec_inner = GST_MPEGTS_FEC_8_9;
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break;
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case 0x07:
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res->fec_inner = GST_MPEGTS_FEC_3_5;
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break;
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case 0x08:
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res->fec_inner = GST_MPEGTS_FEC_4_5;
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break;
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case 0x09:
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res->fec_inner = GST_MPEGTS_FEC_9_10;
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break;
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case 0x0f:
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res->fec_inner = GST_MPEGTS_FEC_NONE;
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break;
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default:
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res->fec_inner = GST_MPEGTS_FEC_AUTO;
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break;
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}
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return TRUE;
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}
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/* GST_MTS_DESC_DVB_BOUQUET_NAME (0x47) */
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/**
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* gst_mpegts_descriptor_parse_dvb_bouquet_name:
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* @bouquet_name: (out) (transfer full) (allow-none): the bouquet name
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*
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* Extracts the bouquet name from @descriptor.
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*
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* Returns: %TRUE if parsing succeeded, else %FALSE.
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*/
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gboolean
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gst_mpegts_descriptor_parse_dvb_bouquet_name (const GstMpegtsDescriptor *
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descriptor, gchar ** bouquet_name)
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{
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guint8 *data;
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g_return_val_if_fail (descriptor != NULL && bouquet_name != NULL, FALSE);
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__common_desc_checks (descriptor, GST_MTS_DESC_DVB_BOUQUET_NAME, 1, FALSE);
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data = (guint8 *) descriptor->data + 2;
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*bouquet_name =
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get_encoding_and_convert ((const gchar *) data, descriptor->length);
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return TRUE;
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}
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|
|
/* GST_MTS_DESC_DVB_SERVICE (0x48) */
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_service:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_SERVICE #GstMpegtsDescriptor
|
|
* @service_type: (out) (allow-none): the service type
|
|
* @service_name: (out) (transfer full) (allow-none): the service name
|
|
* @provider_name: (out) (transfer full) (allow-none): the provider name
|
|
*
|
|
* Extracts the dvb service information from @descriptor.
|
|
*
|
|
* Returns: %TRUE if parsing succeeded, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_service (const GstMpegtsDescriptor *
|
|
descriptor, GstMpegtsDVBServiceType * service_type, gchar ** service_name,
|
|
gchar ** provider_name)
|
|
{
|
|
guint8 *data;
|
|
|
|
g_return_val_if_fail (descriptor != NULL, FALSE);
|
|
/* Need at least 3 bytes (type and 2 bytes for the string length) */
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_SERVICE, 3, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
if (service_type)
|
|
*service_type = *data;
|
|
data += 1;
|
|
if (provider_name)
|
|
*provider_name = get_encoding_and_convert ((const gchar *) data + 1, *data);
|
|
data += *data + 1;
|
|
if (service_name)
|
|
*service_name = get_encoding_and_convert ((const gchar *) data + 1, *data);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_from_dvb_service:
|
|
* @service_type: Service type defined as a #GstMpegtsDVBServiceType
|
|
* @service_name: (allow-none): Name of the service
|
|
* @service_provider: (allow-none): Name of the service provider
|
|
*
|
|
* Fills a #GstMpegtsDescriptor to be a %GST_MTS_DESC_DVB_SERVICE.
|
|
* The data field of the #GstMpegtsDescriptor will be allocated,
|
|
* and transferred to the caller.
|
|
*
|
|
* Returns: (transfer full): the #GstMpegtsDescriptor or %NULL on fail
|
|
*/
|
|
GstMpegtsDescriptor *
|
|
gst_mpegts_descriptor_from_dvb_service (GstMpegtsDVBServiceType service_type,
|
|
const gchar * service_name, const gchar * service_provider)
|
|
{
|
|
GstMpegtsDescriptor *descriptor = NULL;
|
|
guint8 *conv_provider_name = NULL, *conv_service_name = NULL;
|
|
gsize provider_size = 0, service_size = 0;
|
|
guint8 *data;
|
|
|
|
if (service_provider) {
|
|
conv_provider_name = dvb_text_from_utf8 (service_provider, &provider_size);
|
|
|
|
if (!conv_provider_name) {
|
|
GST_WARNING ("Could not find proper encoding for string `%s`",
|
|
service_provider);
|
|
goto beach;
|
|
}
|
|
}
|
|
|
|
if (provider_size >= 256) {
|
|
GST_WARNING ("Service provider string too big (%" G_GSIZE_FORMAT " > 256)",
|
|
provider_size);
|
|
goto beach;
|
|
}
|
|
|
|
if (service_name) {
|
|
conv_service_name = dvb_text_from_utf8 (service_name, &service_size);
|
|
|
|
if (!conv_service_name) {
|
|
GST_WARNING ("Could not find proper encoding for string `%s`",
|
|
service_name);
|
|
goto beach;
|
|
}
|
|
}
|
|
|
|
if (service_size >= 256) {
|
|
GST_WARNING ("Service name string too big (%" G_GSIZE_FORMAT " > 256)",
|
|
service_size);
|
|
goto beach;
|
|
}
|
|
|
|
descriptor =
|
|
_new_descriptor (GST_MTS_DESC_DVB_SERVICE,
|
|
3 + provider_size + service_size);
|
|
|
|
data = descriptor->data + 2;
|
|
*data++ = service_type;
|
|
*data++ = provider_size;
|
|
if (conv_provider_name)
|
|
memcpy (data, conv_provider_name, provider_size);
|
|
|
|
data += provider_size;
|
|
*data++ = service_size;
|
|
if (conv_service_name)
|
|
memcpy (data, conv_service_name, service_size);
|
|
|
|
beach:
|
|
g_free (conv_service_name);
|
|
g_free (conv_provider_name);
|
|
|
|
return descriptor;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_LINKAGE (0x4A) */
|
|
static GstMpegtsDVBLinkageDescriptor *
|
|
_gst_mpegts_dvb_linkage_descriptor_copy (GstMpegtsDVBLinkageDescriptor * source)
|
|
{
|
|
GstMpegtsDVBLinkageDescriptor *copy;
|
|
|
|
copy = g_memdup2 (source, sizeof (GstMpegtsDVBLinkageDescriptor));
|
|
|
|
switch (source->linkage_type) {
|
|
case GST_MPEGTS_DVB_LINKAGE_MOBILE_HAND_OVER:
|
|
copy->linkage_data = g_memdup2 (source->linkage_data,
|
|
sizeof (GstMpegtsDVBLinkageMobileHandOver));
|
|
break;
|
|
case GST_MPEGTS_DVB_LINKAGE_EVENT:
|
|
copy->linkage_data = g_memdup2 (source->linkage_data,
|
|
sizeof (GstMpegtsDVBLinkageEvent));
|
|
break;
|
|
case GST_MPEGTS_DVB_LINKAGE_EXTENDED_EVENT:
|
|
copy->linkage_data = g_ptr_array_ref (source->linkage_data);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
copy->private_data_bytes = g_memdup2 (source->private_data_bytes,
|
|
source->private_data_length);
|
|
|
|
return copy;
|
|
}
|
|
|
|
void
|
|
gst_mpegts_dvb_linkage_descriptor_free (GstMpegtsDVBLinkageDescriptor * source)
|
|
{
|
|
if (source->linkage_data)
|
|
switch (source->linkage_type) {
|
|
case GST_MPEGTS_DVB_LINKAGE_MOBILE_HAND_OVER:
|
|
g_free (source->linkage_data);
|
|
break;
|
|
case GST_MPEGTS_DVB_LINKAGE_EVENT:
|
|
g_free (source->linkage_data);
|
|
break;
|
|
case GST_MPEGTS_DVB_LINKAGE_EXTENDED_EVENT:
|
|
g_ptr_array_unref (source->linkage_data);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
g_free (source->private_data_bytes);
|
|
g_free (source);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDVBLinkageDescriptor,
|
|
gst_mpegts_dvb_linkage_descriptor,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_linkage_descriptor_copy,
|
|
(GFreeFunc) gst_mpegts_dvb_linkage_descriptor_free);
|
|
|
|
DEFINE_STATIC_COPY_FUNCTION (GstMpegtsDVBLinkageMobileHandOver,
|
|
gst_mpegts_dvb_linkage_mobile_hand_over);
|
|
|
|
DEFINE_STATIC_FREE_FUNCTION (GstMpegtsDVBLinkageMobileHandOver,
|
|
gst_mpegts_dvb_linkage_mobile_hand_over);
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDVBLinkageMobileHandOver,
|
|
gst_mpegts_dvb_linkage_mobile_hand_over,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_linkage_mobile_hand_over_copy,
|
|
(GFreeFunc) _gst_mpegts_dvb_linkage_mobile_hand_over_free);
|
|
|
|
DEFINE_STATIC_COPY_FUNCTION (GstMpegtsDVBLinkageEvent,
|
|
gst_mpegts_dvb_linkage_event);
|
|
|
|
DEFINE_STATIC_FREE_FUNCTION (GstMpegtsDVBLinkageEvent,
|
|
gst_mpegts_dvb_linkage_event);
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDVBLinkageEvent,
|
|
gst_mpegts_dvb_linkage_event,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_linkage_event_copy,
|
|
(GFreeFunc) _gst_mpegts_dvb_linkage_event_free);
|
|
|
|
DEFINE_STATIC_COPY_FUNCTION (GstMpegtsDVBLinkageExtendedEvent,
|
|
gst_mpegts_dvb_linkage_extended_event);
|
|
|
|
DEFINE_STATIC_FREE_FUNCTION (GstMpegtsDVBLinkageExtendedEvent,
|
|
gst_mpegts_dvb_linkage_extended_event);
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDVBLinkageExtendedEvent,
|
|
gst_mpegts_dvb_linkage_extended_event,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_linkage_extended_event_copy,
|
|
(GFreeFunc) _gst_mpegts_dvb_linkage_extended_event_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_linkage:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_LINKAGE #GstMpegtsDescriptor
|
|
* @res: (out) (transfer full): the #GstMpegtsDVBLinkageDescriptor to fill
|
|
*
|
|
* Extracts the DVB linkage information from @descriptor.
|
|
*
|
|
* Returns: %TRUE if parsing succeeded, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_linkage (const GstMpegtsDescriptor * descriptor,
|
|
GstMpegtsDVBLinkageDescriptor ** desc)
|
|
{
|
|
guint i;
|
|
guint8 *data, *end;
|
|
GstMpegtsDVBLinkageDescriptor *res;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && desc != NULL, FALSE);
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_LINKAGE, 7, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
end = data + descriptor->length;
|
|
|
|
res = g_new0 (GstMpegtsDVBLinkageDescriptor, 1);
|
|
|
|
res->transport_stream_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
|
|
res->original_network_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
|
|
res->service_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
|
|
res->linkage_type = *data;
|
|
data += 1;
|
|
|
|
switch (res->linkage_type) {
|
|
case GST_MPEGTS_DVB_LINKAGE_MOBILE_HAND_OVER:{
|
|
GstMpegtsDVBLinkageMobileHandOver *hand_over;
|
|
|
|
if (end - data < 1)
|
|
goto fail;
|
|
|
|
hand_over = g_new0 (GstMpegtsDVBLinkageMobileHandOver, 1);
|
|
res->linkage_data = (gpointer) hand_over;
|
|
|
|
hand_over->origin_type = (*data) & 0x01;
|
|
hand_over->hand_over_type = (*data >> 4) & 0x0f;
|
|
data += 1;
|
|
|
|
if (hand_over->hand_over_type ==
|
|
GST_MPEGTS_DVB_LINKAGE_HAND_OVER_IDENTICAL
|
|
|| hand_over->hand_over_type ==
|
|
GST_MPEGTS_DVB_LINKAGE_HAND_OVER_LOCAL_VARIATION
|
|
|| hand_over->hand_over_type ==
|
|
GST_MPEGTS_DVB_LINKAGE_HAND_OVER_ASSOCIATED) {
|
|
if (end - data < 2)
|
|
goto fail;
|
|
|
|
hand_over->network_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
}
|
|
|
|
if (hand_over->origin_type == 0) {
|
|
if (end - data < 2)
|
|
goto fail;
|
|
|
|
hand_over->initial_service_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
}
|
|
break;
|
|
}
|
|
case GST_MPEGTS_DVB_LINKAGE_EVENT:{
|
|
GstMpegtsDVBLinkageEvent *event;
|
|
|
|
if (end - data < 3)
|
|
goto fail;
|
|
|
|
event = g_new0 (GstMpegtsDVBLinkageEvent, 1);
|
|
res->linkage_data = (gpointer) event;
|
|
|
|
event->target_event_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
event->target_listed = *data & 0x01;
|
|
event->event_simulcast = (*data >> 1) & 0x01;
|
|
data += 1;
|
|
break;
|
|
}
|
|
case GST_MPEGTS_DVB_LINKAGE_EXTENDED_EVENT:{
|
|
GPtrArray *ext_events;
|
|
ext_events = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_dvb_linkage_extended_event_free);
|
|
|
|
res->linkage_data = (gpointer) ext_events;
|
|
|
|
for (i = 0; i < *data++;) {
|
|
GstMpegtsDVBLinkageExtendedEvent *ext_event;
|
|
|
|
if (end - data < 3)
|
|
goto fail;
|
|
|
|
ext_event = g_new0 (GstMpegtsDVBLinkageExtendedEvent, 1);
|
|
g_ptr_array_add (res->linkage_data, ext_event);
|
|
|
|
ext_event->target_event_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
i += 2;
|
|
|
|
ext_event->target_listed = *data & 0x01;
|
|
ext_event->event_simulcast = (*data >> 1) & 0x01;
|
|
ext_event->link_type = (*data >> 3) & 0x03;
|
|
ext_event->target_id_type = (*data >> 5) & 0x03;
|
|
ext_event->original_network_id_flag = (*data >> 6) & 0x01;
|
|
ext_event->service_id_flag = (*data >> 7) & 0x01;
|
|
data += 1;
|
|
i += 1;
|
|
|
|
if (ext_event->target_id_type == 3) {
|
|
if (end - data < 2)
|
|
goto fail;
|
|
|
|
ext_event->user_defined_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
i += 2;
|
|
} else {
|
|
if (ext_event->target_id_type == 1) {
|
|
if (end - data < 2)
|
|
goto fail;
|
|
|
|
ext_event->target_transport_stream_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
i += 2;
|
|
}
|
|
if (ext_event->original_network_id_flag) {
|
|
if (end - data < 2)
|
|
goto fail;
|
|
|
|
ext_event->target_original_network_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
i += 2;
|
|
}
|
|
if (ext_event->service_id_flag) {
|
|
if (end - data < 2)
|
|
goto fail;
|
|
|
|
ext_event->target_service_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
i += 2;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
res->private_data_length = end - data;
|
|
res->private_data_bytes = g_memdup2 (data, res->private_data_length);
|
|
|
|
*desc = res;
|
|
|
|
return TRUE;
|
|
|
|
fail:
|
|
gst_mpegts_dvb_linkage_descriptor_free (res);
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* gst_mpegts_dvb_linkage_descriptor_get_mobile_hand_over:
|
|
* @desc: the #GstMpegtsDVBLinkageDescriptor
|
|
*
|
|
* Returns: The #GstMpegtsDVBLinkageMobileHandOver or %NULL if an error happened
|
|
*/
|
|
const GstMpegtsDVBLinkageMobileHandOver *
|
|
gst_mpegts_dvb_linkage_descriptor_get_mobile_hand_over (const
|
|
GstMpegtsDVBLinkageDescriptor * desc)
|
|
{
|
|
g_return_val_if_fail (desc != NULL, NULL);
|
|
g_return_val_if_fail (desc->linkage_type ==
|
|
GST_MPEGTS_DVB_LINKAGE_MOBILE_HAND_OVER, NULL);
|
|
|
|
return (const GstMpegtsDVBLinkageMobileHandOver *) desc->linkage_data;
|
|
}
|
|
|
|
/**
|
|
* gst_mpegts_dvb_linkage_descriptor_get_event:
|
|
* @desc: the #GstMpegtsDVBLinkageDescriptor
|
|
*
|
|
* Returns: The #GstMpegtsDVBLinkageEvent or %NULL if an error happened
|
|
*/
|
|
const GstMpegtsDVBLinkageEvent *
|
|
gst_mpegts_dvb_linkage_descriptor_get_event (const GstMpegtsDVBLinkageDescriptor
|
|
* desc)
|
|
{
|
|
g_return_val_if_fail (desc != NULL, NULL);
|
|
g_return_val_if_fail (desc->linkage_type ==
|
|
GST_MPEGTS_DVB_LINKAGE_EVENT, NULL);
|
|
|
|
return (const GstMpegtsDVBLinkageEvent *) desc->linkage_data;
|
|
}
|
|
|
|
/**
|
|
* gst_mpegts_dvb_linkage_descriptor_get_extended_event:
|
|
* @desc: the #GstMpegtsDVBLinkageDescriptor
|
|
*
|
|
* Returns: (element-type GstMpegtsDVBLinkageExtendedEvent): an #GstMpegtsDVBLinkageExtendedEvent array or %NULL if an error happened
|
|
*/
|
|
const GPtrArray *
|
|
gst_mpegts_dvb_linkage_descriptor_get_extended_event (const
|
|
GstMpegtsDVBLinkageDescriptor * desc)
|
|
{
|
|
g_return_val_if_fail (desc != NULL, NULL);
|
|
g_return_val_if_fail (desc->linkage_type ==
|
|
GST_MPEGTS_DVB_LINKAGE_EXTENDED_EVENT, NULL);
|
|
|
|
return (const GPtrArray *) desc->linkage_data;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_SHORT_EVENT (0x4D) */
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_short_event:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_SHORT_EVENT #GstMpegtsDescriptor
|
|
* @language_code: (out) (transfer full) (allow-none): the language code
|
|
* @event_name: (out) (transfer full) (allow-none): the event name
|
|
* @text: (out) (transfer full) (allow-none): the event text
|
|
*
|
|
* Extracts the DVB short event information from @descriptor.
|
|
*
|
|
* Returns: %TRUE if parsing succeeded, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_short_event (const GstMpegtsDescriptor *
|
|
descriptor, gchar ** language_code, gchar ** event_name, gchar ** text)
|
|
{
|
|
guint8 *data;
|
|
|
|
g_return_val_if_fail (descriptor != NULL, FALSE);
|
|
/* Need at least 5 bytes (3 for language code, 2 for each string length) */
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_SHORT_EVENT, 5, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
if (language_code)
|
|
*language_code = convert_lang_code (data);
|
|
|
|
data += 3;
|
|
if (event_name)
|
|
*event_name = get_encoding_and_convert ((const gchar *) data + 1, *data);
|
|
data += *data + 1;
|
|
if (text)
|
|
*text = get_encoding_and_convert ((const gchar *) data + 1, *data);
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_TELETEXT (0x56) */
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_teletext_idx:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_TELETEXT #GstMpegtsDescriptor
|
|
* @idx: The id of the teletext to get
|
|
* @language_code: (out) (transfer full) (allow-none): a null-terminated string
|
|
* @teletext_type: (out) (allow-none): #GstMpegtsDVBTeletextType
|
|
* @magazine_number: (out) (allow-none):
|
|
* @page_number: (out) (allow-none):
|
|
*
|
|
* Parses teletext number @idx in the @descriptor. The language is in ISO639 format.
|
|
*
|
|
* Returns: FALSE on out-of-bounds and errors
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_teletext_idx (const GstMpegtsDescriptor *
|
|
descriptor, guint idx, gchar ** language_code,
|
|
GstMpegtsDVBTeletextType * teletext_type, guint8 * magazine_number,
|
|
guint8 * page_number)
|
|
{
|
|
guint8 *data;
|
|
|
|
g_return_val_if_fail (descriptor != NULL, FALSE);
|
|
__common_desc_check_base (descriptor, GST_MTS_DESC_DVB_TELETEXT, FALSE);
|
|
|
|
if (descriptor->length / 5 <= idx)
|
|
return FALSE;
|
|
|
|
data = (guint8 *) descriptor->data + 2 + idx * 5;
|
|
|
|
if (language_code)
|
|
*language_code = convert_lang_code (data);
|
|
|
|
if (teletext_type)
|
|
*teletext_type = data[3] >> 3;
|
|
|
|
if (magazine_number)
|
|
*magazine_number = data[3] & 0x07;
|
|
|
|
if (page_number)
|
|
*page_number = data[4];
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_teletext_nb:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_TELETEXT #GstMpegtsDescriptor
|
|
*
|
|
* Find the number of teletext entries in @descriptor
|
|
*
|
|
* Returns: Number of teletext entries
|
|
*/
|
|
guint
|
|
gst_mpegts_descriptor_parse_dvb_teletext_nb (const GstMpegtsDescriptor *
|
|
descriptor)
|
|
{
|
|
g_return_val_if_fail (descriptor != NULL, 0);
|
|
__common_desc_check_base (descriptor, GST_MTS_DESC_DVB_TELETEXT, FALSE);
|
|
|
|
return descriptor->length / 5;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_SUBTITLING (0x59) */
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_subtitling_idx:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_SUBTITLING #GstMpegtsDescriptor
|
|
* @idx: Table id of the entry to parse
|
|
* @lang: (out) (transfer full): the language code
|
|
* @type: (out) (transfer none) (allow-none): the type of subtitling
|
|
* @composition_page_id: (out) (transfer none) (allow-none): the composition page id
|
|
* @ancillary_page_id: (out) (transfer none) (allow-none): the ancillary page id
|
|
*
|
|
* Extracts the DVB subtitling informatio from specific table id in @descriptor.
|
|
*
|
|
* Note: Use #gst_tag_get_language_code if you want to get the the
|
|
* ISO 639-1 language code from the returned ISO 639-2 one.
|
|
*
|
|
* Returns: %TRUE if parsing succeeded, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_subtitling_idx (const GstMpegtsDescriptor *
|
|
descriptor, guint idx, gchar ** lang, guint8 * type,
|
|
guint16 * composition_page_id, guint16 * ancillary_page_id)
|
|
{
|
|
guint8 *data;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && lang != NULL, FALSE);
|
|
__common_desc_check_base (descriptor, GST_MTS_DESC_DVB_SUBTITLING, FALSE);
|
|
|
|
/* If we went too far, return FALSE */
|
|
if (descriptor->length / 8 <= idx)
|
|
return FALSE;
|
|
|
|
data = (guint8 *) descriptor->data + 2 + idx * 8;
|
|
|
|
*lang = convert_lang_code (data);
|
|
|
|
data += 3;
|
|
|
|
if (type)
|
|
*type = *data;
|
|
data += 1;
|
|
if (composition_page_id)
|
|
*composition_page_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
if (ancillary_page_id)
|
|
*ancillary_page_id = GST_READ_UINT16_BE (data);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_subtitling_nb:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_SUBTITLING #GstMpegtsDescriptor
|
|
*
|
|
* Returns: The number of entries in @descriptor
|
|
*/
|
|
guint
|
|
gst_mpegts_descriptor_parse_dvb_subtitling_nb (const GstMpegtsDescriptor *
|
|
descriptor)
|
|
{
|
|
g_return_val_if_fail (descriptor != NULL, FALSE);
|
|
__common_desc_check_base (descriptor, GST_MTS_DESC_DVB_SUBTITLING, FALSE);
|
|
|
|
return descriptor->length / 8;
|
|
}
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_from_dvb_subtitling:
|
|
* @lang: (transfer none): a string containing the ISO639 language
|
|
* @type: subtitling type
|
|
* @composition: composition page id
|
|
* @ancillary: ancillary page id
|
|
*/
|
|
GstMpegtsDescriptor *
|
|
gst_mpegts_descriptor_from_dvb_subtitling (const gchar * lang,
|
|
guint8 type, guint16 composition, guint16 ancillary)
|
|
{
|
|
GstMpegtsDescriptor *descriptor;
|
|
guint8 *data;
|
|
|
|
g_return_val_if_fail (lang != NULL, NULL);
|
|
|
|
descriptor = _new_descriptor (GST_MTS_DESC_DVB_SUBTITLING, 8);
|
|
|
|
data = descriptor->data + 2;
|
|
|
|
memcpy (data, lang, 3);
|
|
data += 3;
|
|
|
|
*data++ = type;
|
|
|
|
GST_WRITE_UINT16_BE (data, composition);
|
|
data += 2;
|
|
|
|
GST_WRITE_UINT16_BE (data, ancillary);
|
|
|
|
return descriptor;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_EXTENDED_EVENT (0x4E) */
|
|
static GstMpegtsExtendedEventDescriptor *
|
|
_gst_mpegts_extended_event_descriptor_copy (GstMpegtsExtendedEventDescriptor *
|
|
source)
|
|
{
|
|
GstMpegtsExtendedEventDescriptor *copy;
|
|
|
|
copy = g_memdup2 (source, sizeof (GstMpegtsExtendedEventDescriptor));
|
|
copy->items = g_ptr_array_ref (source->items);
|
|
copy->text = g_strdup (source->text);
|
|
|
|
return copy;
|
|
}
|
|
|
|
void
|
|
gst_mpegts_extended_event_descriptor_free (GstMpegtsExtendedEventDescriptor *
|
|
source)
|
|
{
|
|
g_free (source->text);
|
|
g_free (source->language_code);
|
|
g_ptr_array_unref (source->items);
|
|
g_free (source);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsExtendedEventDescriptor,
|
|
gst_mpegts_extended_event_descriptor,
|
|
(GBoxedCopyFunc) _gst_mpegts_extended_event_descriptor_copy,
|
|
(GFreeFunc) gst_mpegts_extended_event_descriptor_free);
|
|
|
|
static GstMpegtsExtendedEventItem *
|
|
_gst_mpegts_extended_event_item_copy (GstMpegtsExtendedEventItem * source)
|
|
{
|
|
GstMpegtsExtendedEventItem *copy =
|
|
g_memdup2 (source, sizeof (GstMpegtsExtendedEventItem));
|
|
copy->item_description = g_strdup (source->item_description);
|
|
copy->item = g_strdup (source->item);
|
|
return copy;
|
|
}
|
|
|
|
static void
|
|
_gst_mpegts_extended_event_item_free (GstMpegtsExtendedEventItem * item)
|
|
{
|
|
g_free (item->item);
|
|
g_free (item->item_description);
|
|
g_free (item);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsExtendedEventItem,
|
|
gst_mpegts_extended_event_item,
|
|
(GBoxedCopyFunc) _gst_mpegts_extended_event_item_copy,
|
|
(GFreeFunc) _gst_mpegts_extended_event_item_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_extended_event:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_EXTENDED_EVENT #GstMpegtsDescriptor
|
|
* @res: (out) (transfer full): the #GstMpegtsExtendedEventDescriptor to fill
|
|
*
|
|
* Extracts the DVB extended event information from @descriptor.
|
|
*
|
|
* Returns: %TRUE if parsing succeeded, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_extended_event (const GstMpegtsDescriptor
|
|
* descriptor, GstMpegtsExtendedEventDescriptor ** desc)
|
|
{
|
|
guint8 *data, *pdata;
|
|
guint8 tmp, len_item;
|
|
GstMpegtsExtendedEventItem *item;
|
|
GstMpegtsExtendedEventDescriptor *res;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && desc != NULL, FALSE);
|
|
/* Need at least 6 bytes (1 for desc number, 3 for language code, 2 for the loop length) */
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_EXTENDED_EVENT, 6, FALSE);
|
|
|
|
res = g_new0 (GstMpegtsExtendedEventDescriptor, 1);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
tmp = *data;
|
|
res->descriptor_number = tmp >> 4;
|
|
res->last_descriptor_number = tmp & 0x0f;
|
|
|
|
data += 1;
|
|
|
|
res->language_code = convert_lang_code (data);
|
|
data += 3;
|
|
|
|
len_item = *data;
|
|
if (len_item > descriptor->length - 5) {
|
|
gst_mpegts_extended_event_descriptor_free (res);
|
|
return FALSE;
|
|
}
|
|
|
|
data += 1;
|
|
|
|
res->items = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_extended_event_item_free);
|
|
|
|
pdata = data + len_item;
|
|
while (data < pdata) {
|
|
item = g_new0 (GstMpegtsExtendedEventItem, 1);
|
|
item->item_description =
|
|
get_encoding_and_convert ((const gchar *) data + 1, *data);
|
|
|
|
data += *data + 1;
|
|
|
|
item->item = get_encoding_and_convert ((const gchar *) data + 1, *data);
|
|
|
|
data += *data + 1;
|
|
|
|
g_ptr_array_add (res->items, item);
|
|
}
|
|
if (pdata != data) {
|
|
gst_mpegts_extended_event_descriptor_free (res);
|
|
return FALSE;
|
|
}
|
|
res->text = get_encoding_and_convert ((const gchar *) data + 1, *data);
|
|
|
|
*desc = res;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_COMPONENT (0x50) */
|
|
static GstMpegtsComponentDescriptor *
|
|
_gst_mpegts_dvb_component_descriptor_copy (GstMpegtsComponentDescriptor *
|
|
source)
|
|
{
|
|
GstMpegtsComponentDescriptor *copy;
|
|
|
|
copy = g_memdup2 (source, sizeof (GstMpegtsComponentDescriptor));
|
|
copy->language_code = g_strdup (source->language_code);
|
|
copy->text = g_strdup (source->text);
|
|
|
|
return copy;
|
|
}
|
|
|
|
void
|
|
gst_mpegts_dvb_component_descriptor_free (GstMpegtsComponentDescriptor * source)
|
|
{
|
|
g_free (source->language_code);
|
|
g_free (source->text);
|
|
g_free (source);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsComponentDescriptor,
|
|
gst_mpegts_component_descriptor,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_component_descriptor_copy,
|
|
(GFreeFunc) gst_mpegts_dvb_component_descriptor_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_component:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_COMPONENT #GstMpegtsDescriptor
|
|
* @res: (out) (transfer full): the #GstMpegtsComponentDescriptor to fill
|
|
*
|
|
* Extracts the DVB component information from @descriptor.
|
|
*
|
|
* Returns: %TRUE if parsing succeeded, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_component (const GstMpegtsDescriptor
|
|
* descriptor, GstMpegtsComponentDescriptor ** res)
|
|
{
|
|
guint8 *data;
|
|
guint8 len;
|
|
GstMpegtsComponentDescriptor *desc;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && res != NULL, FALSE);
|
|
/* Need 6 bytes at least (1 for content, 1 for type, 1 for tag, 3 for language code) */
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_COMPONENT, 6, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
desc = g_new0 (GstMpegtsComponentDescriptor, 1);
|
|
|
|
desc->stream_content = *data & 0x0f;
|
|
data += 1;
|
|
|
|
desc->component_type = *data;
|
|
data += 1;
|
|
|
|
desc->component_tag = *data;
|
|
data += 1;
|
|
|
|
desc->language_code = convert_lang_code (data);
|
|
data += 3;
|
|
|
|
len = descriptor->length - 6;
|
|
if (len)
|
|
desc->text = get_encoding_and_convert ((const gchar *) data, len);
|
|
|
|
*res = desc;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_STREAM_IDENTIFIER (0x52) */
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_stream_identifier:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_CONTENT #GstMpegtsDescriptor
|
|
* @component_tag: (out) (transfer none): the component tag
|
|
*
|
|
* Extracts the component tag from @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_stream_identifier (const GstMpegtsDescriptor
|
|
* descriptor, guint8 * component_tag)
|
|
{
|
|
guint8 *data;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && component_tag != NULL, FALSE);
|
|
__common_desc_checks_exact (descriptor, GST_MTS_DESC_DVB_STREAM_IDENTIFIER,
|
|
1, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*component_tag = *data;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_CA_IDENTIFIER (0x53) */
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_ca_identifier:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_CA_IDENTIFIER #GstMpegtsDescriptor
|
|
* @list: (out) (transfer full) (element-type guint16): a list of ca identifier.
|
|
* Edge entry identifies the CA system. Allocations of the value of this field
|
|
* are found in http://www.dvbservices.com
|
|
*
|
|
* Extracts ca id's from @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_ca_identifier (const GstMpegtsDescriptor *
|
|
descriptor, GArray ** list)
|
|
{
|
|
guint8 *data;
|
|
guint16 tmp;
|
|
guint i;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && list != NULL, FALSE);
|
|
/* 2 bytes = one entry */
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_CA_IDENTIFIER, 2, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*list = g_array_new (FALSE, FALSE, sizeof (guint16));
|
|
|
|
for (i = 0; i < descriptor->length - 1; i += 2) {
|
|
tmp = GST_READ_UINT16_BE (data);
|
|
g_array_append_val (*list, tmp);
|
|
data += 2;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_CONTENT (0x54) */
|
|
|
|
DEFINE_STATIC_COPY_FUNCTION (GstMpegtsContent, gst_mpegts_content);
|
|
|
|
DEFINE_STATIC_FREE_FUNCTION (GstMpegtsContent, gst_mpegts_content);
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsContent,
|
|
gst_mpegts_content,
|
|
(GBoxedCopyFunc) _gst_mpegts_content_copy,
|
|
(GFreeFunc) _gst_mpegts_content_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_content:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_CONTENT #GstMpegtsDescriptor
|
|
* @content: (out) (transfer full) (element-type GstMpegtsContent): #GstMpegtsContent
|
|
*
|
|
* Extracts the DVB content information from @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_content (const GstMpegtsDescriptor
|
|
* descriptor, GPtrArray ** content)
|
|
{
|
|
guint8 *data;
|
|
guint8 len, tmp;
|
|
guint8 i;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && content != NULL, FALSE);
|
|
__common_desc_check_base (descriptor, GST_MTS_DESC_DVB_CONTENT, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
len = descriptor->length;
|
|
|
|
*content = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_content_free);
|
|
for (i = 0; i < len;) {
|
|
GstMpegtsContent *cont = g_new0 (GstMpegtsContent, 1);
|
|
tmp = *data;
|
|
cont->content_nibble_1 = (tmp & 0xf0) >> 4;
|
|
cont->content_nibble_2 = tmp & 0x0f;
|
|
data += 1;
|
|
cont->user_byte = *data;
|
|
data += 1;
|
|
i += 2;
|
|
g_ptr_array_add (*content, cont);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_PARENTAL_RATING (0x55) */
|
|
|
|
static GstMpegtsDVBParentalRatingItem *
|
|
_gst_mpegts_dvb_parental_rating_item_copy (GstMpegtsDVBParentalRatingItem *
|
|
source)
|
|
{
|
|
GstMpegtsDVBParentalRatingItem *copy =
|
|
g_memdup2 (source, sizeof (GstMpegtsDVBParentalRatingItem));
|
|
copy->country_code = g_strdup (source->country_code);
|
|
return copy;
|
|
}
|
|
|
|
static void
|
|
_gst_mpegts_dvb_parental_rating_item_free (GstMpegtsDVBParentalRatingItem *
|
|
item)
|
|
{
|
|
g_free (item->country_code);
|
|
g_free (item);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDVBParentalRatingItem,
|
|
gst_mpegts_dvb_parental_rating_item,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_parental_rating_item_copy,
|
|
(GFreeFunc) _gst_mpegts_dvb_parental_rating_item_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_parental_rating:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_PARENTAL_RATING #GstMpegtsDescriptor
|
|
* @rating: (out) (transfer full) (element-type GstMpegtsDVBParentalRatingItem):
|
|
* #GstMpegtsDVBParentalRatingItem
|
|
*
|
|
* Extracts the DVB parental rating information from @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_parental_rating (const GstMpegtsDescriptor
|
|
* descriptor, GPtrArray ** rating)
|
|
{
|
|
guint8 *data;
|
|
guint i;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && rating != NULL, FALSE);
|
|
__common_desc_check_base (descriptor, GST_MTS_DESC_DVB_PARENTAL_RATING,
|
|
FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*rating = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_dvb_parental_rating_item_free);
|
|
|
|
for (i = 0; i < descriptor->length - 3; i += 4) {
|
|
GstMpegtsDVBParentalRatingItem *item =
|
|
g_new0 (GstMpegtsDVBParentalRatingItem, 1);
|
|
g_ptr_array_add (*rating, item);
|
|
|
|
item->country_code = convert_lang_code (data);
|
|
data += 3;
|
|
|
|
if (g_strcmp0 (item->country_code, "BRA") == 0) {
|
|
/* brasil */
|
|
switch (*data & 0xf) {
|
|
case 1:
|
|
item->rating = 6;
|
|
break;
|
|
case 2:
|
|
item->rating = 10;
|
|
break;
|
|
case 3:
|
|
item->rating = 12;
|
|
break;
|
|
case 4:
|
|
item->rating = 14;
|
|
break;
|
|
case 5:
|
|
item->rating = 16;
|
|
break;
|
|
case 6:
|
|
item->rating = 18;
|
|
break;
|
|
default:
|
|
item->rating = 0;
|
|
break;
|
|
}
|
|
} else {
|
|
item->rating = (*data & 0xf) + 3;
|
|
}
|
|
|
|
data += 1;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM (0x5A) */
|
|
|
|
DEFINE_STATIC_COPY_FUNCTION (GstMpegtsTerrestrialDeliverySystemDescriptor,
|
|
gst_mpegts_terrestrial_delivery_system_descriptor);
|
|
|
|
DEFINE_STATIC_FREE_FUNCTION (GstMpegtsTerrestrialDeliverySystemDescriptor,
|
|
gst_mpegts_terrestrial_delivery_system_descriptor);
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsTerrestrialDeliverySystemDescriptor,
|
|
gst_mpegts_terrestrial_delivery_system_descriptor,
|
|
(GBoxedCopyFunc) _gst_mpegts_terrestrial_delivery_system_descriptor_copy,
|
|
(GFreeFunc) _gst_mpegts_terrestrial_delivery_system_descriptor_free);
|
|
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_terrestrial_delivery_system:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM #GstMpegtsDescriptor
|
|
* @res: (out) (transfer none): #GstMpegtsTerrestrialDeliverySystemDescriptor
|
|
*
|
|
* Parses out the terrestrial delivery system from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_terrestrial_delivery_system (const
|
|
GstMpegtsDescriptor * descriptor,
|
|
GstMpegtsTerrestrialDeliverySystemDescriptor * res)
|
|
{
|
|
guint8 *data;
|
|
guint8 tmp;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && res != NULL, FALSE);
|
|
/* Descriptor is always 11 bytes long */
|
|
__common_desc_checks_exact (descriptor,
|
|
GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM, 11, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
res->frequency = 0;
|
|
res->frequency = GST_READ_UINT32_BE (data);
|
|
res->frequency *= 10;
|
|
|
|
data += 4;
|
|
|
|
tmp = *data;
|
|
switch ((tmp >> 5) & 0x07) {
|
|
case 0:
|
|
res->bandwidth = 8000000;
|
|
break;
|
|
case 1:
|
|
res->bandwidth = 7000000;
|
|
break;
|
|
case 2:
|
|
res->bandwidth = 6000000;
|
|
break;
|
|
case 3:
|
|
res->bandwidth = 5000000;
|
|
break;
|
|
default:
|
|
res->bandwidth = 0;
|
|
break;
|
|
}
|
|
|
|
res->priority = (tmp >> 4) & 0x01;
|
|
res->time_slicing = (tmp >> 3) & 0x01;
|
|
res->mpe_fec = (tmp >> 2) & 0x01;
|
|
data += 1;
|
|
|
|
tmp = *data;
|
|
switch ((tmp >> 6) & 0x03) {
|
|
case 0:
|
|
res->constellation = GST_MPEGTS_MODULATION_QPSK;
|
|
break;
|
|
case 1:
|
|
res->constellation = GST_MPEGTS_MODULATION_QAM_16;
|
|
break;
|
|
case 2:
|
|
res->constellation = GST_MPEGTS_MODULATION_QAM_64;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch ((tmp >> 3) & 0x07) {
|
|
case 0:
|
|
res->hierarchy = GST_MPEGTS_HIERARCHY_NONE;
|
|
break;
|
|
case 1:
|
|
res->hierarchy = GST_MPEGTS_HIERARCHY_1;
|
|
break;
|
|
case 2:
|
|
res->hierarchy = GST_MPEGTS_HIERARCHY_2;
|
|
break;
|
|
case 3:
|
|
res->hierarchy = GST_MPEGTS_HIERARCHY_4;
|
|
break;
|
|
case 4:
|
|
res->hierarchy = GST_MPEGTS_HIERARCHY_NONE;
|
|
break;
|
|
case 5:
|
|
res->hierarchy = GST_MPEGTS_HIERARCHY_1;
|
|
break;
|
|
case 6:
|
|
res->hierarchy = GST_MPEGTS_HIERARCHY_2;
|
|
break;
|
|
case 7:
|
|
res->hierarchy = GST_MPEGTS_HIERARCHY_4;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch (tmp & 0x07) {
|
|
case 0:
|
|
res->code_rate_hp = GST_MPEGTS_FEC_1_2;
|
|
break;
|
|
case 1:
|
|
res->code_rate_hp = GST_MPEGTS_FEC_2_3;
|
|
break;
|
|
case 2:
|
|
res->code_rate_hp = GST_MPEGTS_FEC_3_4;
|
|
break;
|
|
case 3:
|
|
res->code_rate_hp = GST_MPEGTS_FEC_5_6;
|
|
break;
|
|
case 4:
|
|
res->code_rate_hp = GST_MPEGTS_FEC_7_8;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
data += 1;
|
|
|
|
tmp = *data;
|
|
switch ((tmp >> 5) & 0x07) {
|
|
case 0:
|
|
res->code_rate_lp = GST_MPEGTS_FEC_1_2;
|
|
break;
|
|
case 1:
|
|
res->code_rate_lp = GST_MPEGTS_FEC_2_3;
|
|
break;
|
|
case 2:
|
|
res->code_rate_lp = GST_MPEGTS_FEC_3_4;
|
|
break;
|
|
case 3:
|
|
res->code_rate_lp = GST_MPEGTS_FEC_5_6;
|
|
break;
|
|
case 4:
|
|
res->code_rate_lp = GST_MPEGTS_FEC_7_8;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch ((tmp >> 3) & 0x03) {
|
|
case 0:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_1_32;
|
|
break;
|
|
case 1:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_1_16;
|
|
break;
|
|
case 2:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_1_8;
|
|
break;
|
|
case 3:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_1_4;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch ((tmp >> 1) & 0x03) {
|
|
case 0:
|
|
res->transmission_mode = GST_MPEGTS_TRANSMISSION_MODE_2K;
|
|
break;
|
|
case 1:
|
|
res->transmission_mode = GST_MPEGTS_TRANSMISSION_MODE_8K;
|
|
break;
|
|
case 2:
|
|
res->transmission_mode = GST_MPEGTS_TRANSMISSION_MODE_4K;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
res->other_frequency = tmp & 0x01;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_MULTILINGUAL_NETWORK_NAME (0x5B) */
|
|
|
|
static GstMpegtsDvbMultilingualNetworkNameItem
|
|
* _gst_mpegts_dvb_multilingual_network_name_item_copy
|
|
(GstMpegtsDvbMultilingualNetworkNameItem * source)
|
|
{
|
|
GstMpegtsDvbMultilingualNetworkNameItem *copy =
|
|
g_memdup2 (source, sizeof (GstMpegtsDvbMultilingualNetworkNameItem));
|
|
copy->language_code = g_strdup (source->language_code);
|
|
copy->network_name = g_strdup (source->network_name);
|
|
return copy;
|
|
}
|
|
|
|
static void
|
|
_gst_mpegts_dvb_multilingual_network_name_item_free
|
|
(GstMpegtsDvbMultilingualNetworkNameItem * item)
|
|
{
|
|
g_free (item->network_name);
|
|
g_free (item->language_code);
|
|
g_free (item);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDvbMultilingualNetworkNameItem,
|
|
gst_mpegts_dvb_multilingual_network_name_item,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_multilingual_network_name_item_copy,
|
|
(GFreeFunc) _gst_mpegts_dvb_multilingual_network_name_item_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_multilingual_network_name:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_MULTILINGUAL_NETWORK_NAME
|
|
* #GstMpegtsDescriptor
|
|
* @network_name_items: (out) (transfer full) (element-type GstMpegtsDvbMultilingualNetworkNameItem):
|
|
* a #GstMpegtsDvbMultilingualNetworkNameItem
|
|
*
|
|
* Parses out the multilingual network name from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_multilingual_network_name (const
|
|
GstMpegtsDescriptor * descriptor, GPtrArray ** network_name_items)
|
|
{
|
|
guint8 *data, i, len;
|
|
GstMpegtsDvbMultilingualNetworkNameItem *item;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && network_name_items != NULL,
|
|
FALSE);
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_MULTILINGUAL_NETWORK_NAME,
|
|
5, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*network_name_items = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_dvb_multilingual_network_name_item_free);
|
|
|
|
for (i = 0; i < descriptor->length - 3;) {
|
|
item = g_new0 (GstMpegtsDvbMultilingualNetworkNameItem, 1);
|
|
g_ptr_array_add (*network_name_items, item);
|
|
item->language_code = convert_lang_code (data);
|
|
data += 3;
|
|
i += 3;
|
|
|
|
len = *data;
|
|
item->network_name =
|
|
get_encoding_and_convert ((const gchar *) data + 1, len);
|
|
data += len + 1;
|
|
i += len + 1;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_MULTILINGUAL_BOUQUET_NAME (0x5C) */
|
|
|
|
static GstMpegtsDvbMultilingualBouquetNameItem
|
|
* _gst_mpegts_dvb_multilingual_bouquet_name_item_copy
|
|
(GstMpegtsDvbMultilingualBouquetNameItem * source)
|
|
{
|
|
GstMpegtsDvbMultilingualBouquetNameItem *copy =
|
|
g_memdup2 (source, sizeof (GstMpegtsDvbMultilingualBouquetNameItem));
|
|
copy->bouquet_name = g_strdup (source->bouquet_name);
|
|
copy->language_code = g_strdup (source->language_code);
|
|
return copy;
|
|
}
|
|
|
|
static void
|
|
_gst_mpegts_dvb_multilingual_bouquet_name_item_free
|
|
(GstMpegtsDvbMultilingualBouquetNameItem * item)
|
|
{
|
|
g_free (item->language_code);
|
|
g_free (item->bouquet_name);
|
|
g_free (item);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDvbMultilingualBouquetNameItem,
|
|
gst_mpegts_dvb_multilingual_bouquet_name_item,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_multilingual_bouquet_name_item_copy,
|
|
(GFreeFunc) _gst_mpegts_dvb_multilingual_bouquet_name_item_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_multilingual_bouquet_name:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_MULTILINGUAL_BOUQUET_NAME
|
|
* #GstMpegtsDescriptor
|
|
* @bouquet_name_items: (out) (transfer full) (element-type GstMpegtsDvbMultilingualBouquetNameItem):
|
|
* a #GstMpegtsDvbMultilingualBouquetNameItem
|
|
*
|
|
* Parses out the multilingual bouquet name from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_multilingual_bouquet_name (const
|
|
GstMpegtsDescriptor * descriptor, GPtrArray ** bouquet_name_items)
|
|
{
|
|
guint8 *data, i, len;
|
|
GstMpegtsDvbMultilingualBouquetNameItem *item;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && bouquet_name_items != NULL,
|
|
FALSE);
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_MULTILINGUAL_BOUQUET_NAME,
|
|
5, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*bouquet_name_items = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_dvb_multilingual_bouquet_name_item_free);
|
|
|
|
for (i = 0; i < descriptor->length - 3;) {
|
|
item = g_new0 (GstMpegtsDvbMultilingualBouquetNameItem, 1);
|
|
g_ptr_array_add (*bouquet_name_items, item);
|
|
item->language_code = convert_lang_code (data);
|
|
data += 3;
|
|
i += 3;
|
|
|
|
len = *data;
|
|
item->bouquet_name =
|
|
get_encoding_and_convert ((const gchar *) data + 1, len);
|
|
data += len + 1;
|
|
i += len + 1;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_MULTILINGUAL_SERVICE_NAME (0x5D) */
|
|
|
|
static GstMpegtsDvbMultilingualServiceNameItem
|
|
* _gst_mpegts_dvb_multilingual_service_name_item_copy
|
|
(GstMpegtsDvbMultilingualServiceNameItem * source)
|
|
{
|
|
GstMpegtsDvbMultilingualServiceNameItem *copy =
|
|
g_memdup2 (source, sizeof (GstMpegtsDvbMultilingualServiceNameItem));
|
|
copy->language_code = g_strdup (source->language_code);
|
|
copy->service_name = g_strdup (source->service_name);
|
|
copy->provider_name = g_strdup (source->provider_name);
|
|
return copy;
|
|
}
|
|
|
|
static void
|
|
_gst_mpegts_dvb_multilingual_service_name_item_free
|
|
(GstMpegtsDvbMultilingualServiceNameItem * item)
|
|
{
|
|
g_free (item->provider_name);
|
|
g_free (item->service_name);
|
|
g_free (item->language_code);
|
|
g_free (item);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDvbMultilingualServiceNameItem,
|
|
gst_mpegts_dvb_multilingual_service_name_item,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_multilingual_service_name_item_copy,
|
|
(GFreeFunc) _gst_mpegts_dvb_multilingual_service_name_item_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_multilingual_service_name:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_MULTILINGUAL_SERVICE_NAME
|
|
* #GstMpegtsDescriptor
|
|
* @service_name_items: (out) (transfer full) (element-type GstMpegtsDvbMultilingualServiceNameItem):
|
|
* a #GstMpegtsDvbMultilingualServiceNameItem
|
|
*
|
|
* Parses out the multilingual service name from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_multilingual_service_name (const
|
|
GstMpegtsDescriptor * descriptor, GPtrArray ** service_name_items)
|
|
{
|
|
guint8 *data, i, len;
|
|
GstMpegtsDvbMultilingualServiceNameItem *item;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && service_name_items != NULL,
|
|
FALSE);
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_MULTILINGUAL_SERVICE_NAME,
|
|
7, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*service_name_items = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_dvb_multilingual_service_name_item_free);
|
|
|
|
for (i = 0; i < descriptor->length - 3;) {
|
|
item = g_new0 (GstMpegtsDvbMultilingualServiceNameItem, 1);
|
|
g_ptr_array_add (*service_name_items, item);
|
|
item->language_code = convert_lang_code (data);
|
|
data += 3;
|
|
i += 3;
|
|
|
|
len = *data;
|
|
item->provider_name =
|
|
get_encoding_and_convert ((const gchar *) data + 1, len);
|
|
data += len + 1;
|
|
i += len + 1;
|
|
|
|
len = *data;
|
|
item->service_name =
|
|
get_encoding_and_convert ((const gchar *) data + 1, len);
|
|
data += len + 1;
|
|
i += len + 1;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_MULTILINGUAL_COMPONENT (0x5E) */
|
|
|
|
static GstMpegtsDvbMultilingualComponentItem
|
|
* _gst_mpegts_dvb_multilingual_component_item_copy
|
|
(GstMpegtsDvbMultilingualComponentItem * source)
|
|
{
|
|
GstMpegtsDvbMultilingualComponentItem *copy =
|
|
g_memdup2 (source, sizeof (GstMpegtsDvbMultilingualComponentItem));
|
|
copy->description = g_strdup (source->description);
|
|
copy->language_code = g_strdup (source->language_code);
|
|
return copy;
|
|
}
|
|
|
|
static void
|
|
_gst_mpegts_dvb_multilingual_component_item_free
|
|
(GstMpegtsDvbMultilingualComponentItem * item)
|
|
{
|
|
g_free (item->language_code);
|
|
g_free (item->description);
|
|
g_free (item);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDvbMultilingualComponentItem,
|
|
gst_mpegts_dvb_multilingual_component_item,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_multilingual_component_item_copy,
|
|
(GFreeFunc) _gst_mpegts_dvb_multilingual_component_item_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_multilingual_component:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_MULTILINGUAL_COMPONENT
|
|
* #GstMpegtsDescriptor
|
|
* @component_tag: (out): the component tag
|
|
* @component_description_items: (out) (transfer full) (element-type GstMpegtsDvbMultilingualComponentItem):
|
|
* a #GstMpegtsDvbMultilingualComponentItem
|
|
*
|
|
* Parses out the multilingual component from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_multilingual_component (const
|
|
GstMpegtsDescriptor * descriptor, guint8 * component_tag,
|
|
GPtrArray ** component_description_items)
|
|
{
|
|
guint8 *data, i, len;
|
|
GstMpegtsDvbMultilingualComponentItem *item;
|
|
|
|
g_return_val_if_fail (descriptor != NULL
|
|
&& component_description_items != NULL && component_tag != NULL, FALSE);
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_MULTILINGUAL_COMPONENT, 6,
|
|
FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*component_tag = *data;
|
|
data += 1;
|
|
|
|
*component_description_items =
|
|
g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_dvb_multilingual_component_item_free);
|
|
|
|
for (i = 0; i < descriptor->length - 3;) {
|
|
item = g_new0 (GstMpegtsDvbMultilingualComponentItem, 1);
|
|
g_ptr_array_add (*component_description_items, item);
|
|
item->language_code = convert_lang_code (data);
|
|
data += 3;
|
|
i += 3;
|
|
|
|
len = *data;
|
|
item->description =
|
|
get_encoding_and_convert ((const gchar *) data + 1, len);
|
|
data += len + 1;
|
|
i += len + 1;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_PRIVATE_DATA_SPECIFIER (0x5F) */
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_private_data_specifier:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_PRIVATE_DATA_SPECIFIER #GstMpegtsDescriptor
|
|
* @private_data_specifier: (out): the private data specifier id
|
|
* registered by http://www.dvbservices.com/
|
|
* @private_data: (out) (transfer full) (allow-none) (array length=length): additional data or NULL
|
|
* @length: (out) (allow-none): length of @private_data
|
|
*
|
|
* Parses out the private data specifier from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_private_data_specifier (const
|
|
GstMpegtsDescriptor * descriptor, guint32 * private_data_specifier,
|
|
guint8 ** private_data, guint8 * length)
|
|
{
|
|
guint8 *data;
|
|
|
|
g_return_val_if_fail (descriptor != NULL
|
|
&& private_data_specifier != NULL, FALSE);
|
|
__common_desc_checks (descriptor,
|
|
GST_MTS_DESC_DVB_PRIVATE_DATA_SPECIFIER, 4, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*private_data_specifier = GST_READ_UINT32_BE (data);
|
|
|
|
if (length && private_data) {
|
|
*length = descriptor->length - 4;
|
|
|
|
*private_data = g_memdup2 (data + 4, *length);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_FREQUENCY_LIST (0x62) */
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_frequency_list:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_FREQUENCY_LIST #GstMpegtsDescriptor
|
|
* @offset: (out): %FALSE in Hz, %TRUE in kHz
|
|
* @list: (out) (transfer full) (element-type guint32): a list of all frequencies in Hz/kHz
|
|
* depending on @offset
|
|
*
|
|
* Parses out a list of frequencies from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_frequency_list (const GstMpegtsDescriptor
|
|
* descriptor, gboolean * offset, GArray ** list)
|
|
{
|
|
guint8 *data, type, len;
|
|
guint32 freq;
|
|
guint i;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && offset != NULL &&
|
|
list != NULL, FALSE);
|
|
/* 1 byte coding system, 4 bytes each frequency entry */
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_FREQUENCY_LIST, 5, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
type = *data & 0x03;
|
|
data += 1;
|
|
|
|
if (type == 1) {
|
|
/* satellite */
|
|
*offset = TRUE;
|
|
} else {
|
|
/* cable, terrestrial */
|
|
*offset = FALSE;
|
|
}
|
|
|
|
*list = g_array_new (FALSE, FALSE, sizeof (guint32));
|
|
|
|
len = descriptor->length - 1;
|
|
|
|
for (i = 0; i < len - 3; i += 4) {
|
|
switch (type) {
|
|
case 1:
|
|
freq = BCD_32 (data) * 10;
|
|
break;
|
|
case 2:
|
|
freq = BCD_32 (data) * 100;
|
|
break;
|
|
case 3:
|
|
freq = GST_READ_UINT32_BE (data) * 10;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
g_array_append_val (*list, freq);
|
|
data += 4;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_DATA_BROADCAST (0x64) */
|
|
static GstMpegtsDataBroadcastDescriptor *
|
|
_gst_mpegts_dvb_data_broadcast_descriptor_copy (GstMpegtsDataBroadcastDescriptor
|
|
* source)
|
|
{
|
|
GstMpegtsDataBroadcastDescriptor *copy;
|
|
|
|
copy = g_memdup2 (source, sizeof (GstMpegtsDataBroadcastDescriptor));
|
|
|
|
copy->selector_bytes = g_memdup2 (source->selector_bytes, source->length);
|
|
copy->language_code = g_strdup (source->language_code);
|
|
copy->text = g_strdup (source->text);
|
|
|
|
return copy;
|
|
}
|
|
|
|
void
|
|
gst_mpegts_dvb_data_broadcast_descriptor_free (GstMpegtsDataBroadcastDescriptor
|
|
* source)
|
|
{
|
|
g_free (source->selector_bytes);
|
|
g_free (source->language_code);
|
|
g_free (source->text);
|
|
g_free (source);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsDataBroadcastDescriptor,
|
|
gst_mpegts_dvb_data_broadcast_descriptor,
|
|
(GBoxedCopyFunc) _gst_mpegts_dvb_data_broadcast_descriptor_copy,
|
|
(GFreeFunc) gst_mpegts_dvb_data_broadcast_descriptor_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_data_broadcast:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_DATA_BROADCAST #GstMpegtsDescriptor
|
|
* @res: (out) (transfer full): #GstMpegtsDataBroadcastDescriptor
|
|
*
|
|
* Parses out the data broadcast from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_data_broadcast (const GstMpegtsDescriptor
|
|
* descriptor, GstMpegtsDataBroadcastDescriptor ** desc)
|
|
{
|
|
guint8 *data;
|
|
GstMpegtsDataBroadcastDescriptor *res;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && desc != NULL, FALSE);
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_DATA_BROADCAST, 8, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
res = g_new0 (GstMpegtsDataBroadcastDescriptor, 1);
|
|
|
|
res->data_broadcast_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
|
|
res->component_tag = *data;
|
|
data += 1;
|
|
|
|
res->length = *data;
|
|
data += 1;
|
|
|
|
res->selector_bytes = g_memdup2 (data, res->length);
|
|
data += res->length;
|
|
|
|
res->language_code = convert_lang_code (data);
|
|
data += 3;
|
|
|
|
res->text = get_encoding_and_convert ((const gchar *) data + 1, *data);
|
|
|
|
*desc = res;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_SCRAMBLING (0x65) */
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_scrambling:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_SCRAMBLING #GstMpegtsDescriptor
|
|
* @scrambling_mode: (out): This 8-bit field identifies the selected
|
|
* mode of the scrambling algorithm (#GstMpegtsDVBScramblingModeType).
|
|
* The technical details of the scrambling algorithm are available only
|
|
* to bona-fide users upon signature of a Non Disclosure Agreement (NDA)
|
|
* administered by the DVB Common Scrambling Algorithm Custodian.
|
|
*
|
|
* Parses out the scrambling mode from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_scrambling (const GstMpegtsDescriptor *
|
|
descriptor, GstMpegtsDVBScramblingModeType * scrambling_mode)
|
|
{
|
|
guint8 *data;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && scrambling_mode != NULL, FALSE);
|
|
__common_desc_checks_exact (descriptor, GST_MTS_DESC_DVB_SCRAMBLING, 1,
|
|
FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*scrambling_mode = *data;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_DVB_DATA_BROADCAST_ID (0x66) */
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_data_broadcast_id:
|
|
* @descriptor: a %GST_MTS_DESC_DVB_DATA_BROADCAST_ID #GstMpegtsDescriptor
|
|
* @data_broadcast_id: (out): the data broadcast id
|
|
* @id_selector_bytes: (out) (transfer full) (array length=len): the selector bytes, if present
|
|
* @len: (out): the length of @id_selector_bytes
|
|
*
|
|
* Parses out the data broadcast id from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_data_broadcast_id (const GstMpegtsDescriptor
|
|
* descriptor, guint16 * data_broadcast_id, guint8 ** id_selector_bytes,
|
|
guint8 * len)
|
|
{
|
|
guint8 *data;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && data_broadcast_id != NULL &&
|
|
id_selector_bytes != NULL, FALSE);
|
|
__common_desc_checks (descriptor, GST_MTS_DESC_DVB_DATA_BROADCAST_ID, 2,
|
|
FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 2;
|
|
|
|
*data_broadcast_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
|
|
*len = descriptor->length - 2;
|
|
|
|
*id_selector_bytes = g_memdup2 (data, *len);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GST_MTS_DESC_EXT_DVB_T2_DELIVERY_SYSTEM (0x7F && 0x04) */
|
|
static GstMpegtsT2DeliverySystemDescriptor
|
|
* _gst_mpegts_t2_delivery_system_descriptor_copy
|
|
(GstMpegtsT2DeliverySystemDescriptor * source)
|
|
{
|
|
GstMpegtsT2DeliverySystemDescriptor *copy;
|
|
|
|
copy = g_memdup2 (source, sizeof (GstMpegtsT2DeliverySystemDescriptor));
|
|
copy->cells = g_ptr_array_ref (source->cells);
|
|
|
|
return copy;
|
|
}
|
|
|
|
void gst_mpegts_t2_delivery_system_descriptor_free
|
|
(GstMpegtsT2DeliverySystemDescriptor * source)
|
|
{
|
|
g_ptr_array_unref (source->cells);
|
|
g_free (source);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsT2DeliverySystemDescriptor,
|
|
gst_mpegts_t2_delivery_system_descriptor,
|
|
(GBoxedCopyFunc) _gst_mpegts_t2_delivery_system_descriptor_copy,
|
|
(GFreeFunc) gst_mpegts_t2_delivery_system_descriptor_free);
|
|
|
|
DEFINE_STATIC_COPY_FUNCTION (GstMpegtsT2DeliverySystemCellExtension,
|
|
gst_mpegts_t2_delivery_system_cell_extension);
|
|
|
|
DEFINE_STATIC_FREE_FUNCTION (GstMpegtsT2DeliverySystemCellExtension,
|
|
gst_mpegts_t2_delivery_system_cell_extension);
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsT2DeliverySystemCellExtension,
|
|
gst_mpegts_t2_delivery_system_cell_extension,
|
|
(GBoxedCopyFunc) _gst_mpegts_t2_delivery_system_cell_extension_copy,
|
|
(GFreeFunc) _gst_mpegts_t2_delivery_system_cell_extension_free);
|
|
|
|
static GstMpegtsT2DeliverySystemCell *
|
|
_gst_mpegts_t2_delivery_system_cell_copy (GstMpegtsT2DeliverySystemCell
|
|
* source)
|
|
{
|
|
GstMpegtsT2DeliverySystemCell *copy =
|
|
g_memdup2 (source, sizeof (GstMpegtsT2DeliverySystemCell));
|
|
copy->centre_frequencies = g_array_ref (source->centre_frequencies);
|
|
copy->sub_cells = g_ptr_array_ref (source->sub_cells);
|
|
return copy;
|
|
}
|
|
|
|
static void
|
|
_gst_mpegts_t2_delivery_system_cell_free (GstMpegtsT2DeliverySystemCell * cell)
|
|
{
|
|
g_ptr_array_unref (cell->sub_cells);
|
|
g_array_unref (cell->centre_frequencies);
|
|
g_free (cell);
|
|
}
|
|
|
|
G_DEFINE_BOXED_TYPE (GstMpegtsT2DeliverySystemCell,
|
|
gst_mpegts_t2_delivery_system_cell,
|
|
(GBoxedCopyFunc) _gst_mpegts_t2_delivery_system_cell_copy,
|
|
(GFreeFunc) _gst_mpegts_t2_delivery_system_cell_free);
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_dvb_t2_delivery_system:
|
|
* @descriptor: a %GST_MTS_DESC_EXT_DVB_T2_DELIVERY_SYSTEM #GstMpegtsDescriptor
|
|
* @res: (out) (transfer full): #GstMpegtsT2DeliverySystemDescriptor
|
|
*
|
|
* Parses out the DVB-T2 delivery system from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_dvb_t2_delivery_system (const GstMpegtsDescriptor
|
|
* descriptor, GstMpegtsT2DeliverySystemDescriptor ** desc)
|
|
{
|
|
guint8 *data;
|
|
guint8 len, freq_len, sub_cell_len;
|
|
guint32 tmp_freq;
|
|
guint8 i;
|
|
GstMpegtsT2DeliverySystemDescriptor *res;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && desc != NULL, FALSE);
|
|
__common_desc_ext_checks (descriptor, GST_MTS_DESC_EXT_DVB_T2_DELIVERY_SYSTEM,
|
|
4, FALSE);
|
|
|
|
data = (guint8 *) descriptor->data + 3;
|
|
|
|
res = g_new0 (GstMpegtsT2DeliverySystemDescriptor, 1);
|
|
|
|
res->plp_id = *data;
|
|
data += 1;
|
|
|
|
res->t2_system_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
|
|
if (descriptor->length > 4) {
|
|
// FIXME: siso / miso
|
|
res->siso_miso = (*data >> 6) & 0x03;
|
|
switch ((*data >> 2) & 0x0f) {
|
|
case 0:
|
|
res->bandwidth = 8000000;
|
|
break;
|
|
case 1:
|
|
res->bandwidth = 7000000;
|
|
break;
|
|
case 2:
|
|
res->bandwidth = 6000000;
|
|
break;
|
|
case 3:
|
|
res->bandwidth = 5000000;
|
|
break;
|
|
case 4:
|
|
res->bandwidth = 10000000;
|
|
break;
|
|
case 5:
|
|
res->bandwidth = 1712000;
|
|
break;
|
|
default:
|
|
res->bandwidth = 0;
|
|
break;
|
|
}
|
|
data += 1;
|
|
|
|
switch ((*data >> 5) & 0x07) {
|
|
case 0:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_1_32;
|
|
break;
|
|
case 1:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_1_16;
|
|
break;
|
|
case 2:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_1_8;
|
|
break;
|
|
case 3:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_1_4;
|
|
break;
|
|
case 4:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_1_128;
|
|
break;
|
|
case 5:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_19_128;
|
|
break;
|
|
case 6:
|
|
res->guard_interval = GST_MPEGTS_GUARD_INTERVAL_19_256;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
switch ((*data >> 2) & 0x07) {
|
|
case 0:
|
|
res->transmission_mode = GST_MPEGTS_TRANSMISSION_MODE_2K;
|
|
break;
|
|
case 1:
|
|
res->transmission_mode = GST_MPEGTS_TRANSMISSION_MODE_8K;
|
|
break;
|
|
case 2:
|
|
res->transmission_mode = GST_MPEGTS_TRANSMISSION_MODE_4K;
|
|
break;
|
|
case 3:
|
|
res->transmission_mode = GST_MPEGTS_TRANSMISSION_MODE_1K;
|
|
break;
|
|
case 4:
|
|
res->transmission_mode = GST_MPEGTS_TRANSMISSION_MODE_16K;
|
|
break;
|
|
case 5:
|
|
res->transmission_mode = GST_MPEGTS_TRANSMISSION_MODE_32K;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
res->other_frequency = (*data >> 1) & 0x01;
|
|
res->tfs = (*data) & 0x01;
|
|
data += 1;
|
|
|
|
len = descriptor->length - 6;
|
|
|
|
res->cells = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_t2_delivery_system_cell_free);
|
|
|
|
for (i = 0; i < len;) {
|
|
GstMpegtsT2DeliverySystemCell *cell;
|
|
guint8 j, k;
|
|
|
|
cell = g_new0 (GstMpegtsT2DeliverySystemCell, 1);
|
|
g_ptr_array_add (res->cells, cell);
|
|
|
|
cell->cell_id = GST_READ_UINT16_BE (data);
|
|
data += 2;
|
|
i += 2;
|
|
|
|
cell->centre_frequencies = g_array_new (FALSE, FALSE, sizeof (guint32));
|
|
|
|
if (res->tfs == TRUE) {
|
|
freq_len = *data;
|
|
data += 1;
|
|
i += 1;
|
|
|
|
for (j = 0; j < freq_len;) {
|
|
tmp_freq = GST_READ_UINT32_BE (data) * 10;
|
|
g_array_append_val (cell->centre_frequencies, tmp_freq);
|
|
data += 4;
|
|
j += 4;
|
|
i += 4;
|
|
}
|
|
} else {
|
|
tmp_freq = GST_READ_UINT32_BE (data) * 10;
|
|
g_array_append_val (cell->centre_frequencies, tmp_freq);
|
|
data += 4;
|
|
i += 4;
|
|
}
|
|
sub_cell_len = (*data);
|
|
data += 1;
|
|
i += 1;
|
|
|
|
cell->sub_cells = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
_gst_mpegts_t2_delivery_system_cell_extension_free);
|
|
|
|
for (k = 0; k < sub_cell_len;) {
|
|
GstMpegtsT2DeliverySystemCellExtension *cell_ext;
|
|
cell_ext = g_new0 (GstMpegtsT2DeliverySystemCellExtension, 1);
|
|
|
|
g_ptr_array_add (cell->sub_cells, cell_ext);
|
|
cell_ext->cell_id_extension = *data;
|
|
data += 1;
|
|
|
|
cell_ext->transposer_frequency = GST_READ_UINT32_BE (data) * 10;
|
|
data += 4;
|
|
i += 5;
|
|
k += 5;
|
|
}
|
|
}
|
|
}
|
|
|
|
*desc = res;
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* gst_mpegts_descriptor_parse_audio_preselection_list:
|
|
* @descriptor: a %GST_MTS_DESC_EXT_DVB_AUDIO_PRESELECTION #GstMpegtsDescriptor
|
|
* @list: (out) (transfer full) (element-type GstMpegtsAudioPreselectionDescriptor):
|
|
* the list of audio preselection
|
|
*
|
|
* Parses out a list of audio preselection from the @descriptor.
|
|
*
|
|
* Returns: %TRUE if the parsing happened correctly, else %FALSE.
|
|
*
|
|
* Since: 1.20
|
|
*/
|
|
gboolean
|
|
gst_mpegts_descriptor_parse_audio_preselection_list (const GstMpegtsDescriptor
|
|
* descriptor, GPtrArray ** list)
|
|
{
|
|
guint8 *data;
|
|
guint8 i, num_preselections, num_aux_components, future_extension_length;
|
|
GstMpegtsAudioPreselectionDescriptor *item;
|
|
|
|
g_return_val_if_fail (descriptor != NULL && list != NULL, FALSE);
|
|
__common_desc_ext_check_base (descriptor,
|
|
GST_MTS_DESC_EXT_DVB_AUDIO_PRESELECTION, FALSE);
|
|
|
|
*list = g_ptr_array_new_with_free_func ((GDestroyNotify)
|
|
gst_mpegts_descriptor_parse_audio_preselection_free);
|
|
|
|
data = (guint8 *) descriptor->data + 3;
|
|
num_preselections = (guint8) ((*data & 0xF8) >> 3);
|
|
data += 1;
|
|
|
|
for (i = 0; i < num_preselections; i++) {
|
|
item = g_new0 (GstMpegtsAudioPreselectionDescriptor, 1);
|
|
g_ptr_array_add (*list, item);
|
|
|
|
item->preselection_id = (*data & 0xF8) >> 3;
|
|
item->audio_rendering_indication = *data & 0x7;
|
|
data += 1;
|
|
|
|
item->audio_description = (*data & 0x80) >> 7;
|
|
item->spoken_subtitles = (*data & 0x40) >> 6;
|
|
item->dialogue_enhancement = (*data & 0x20) >> 5;
|
|
item->interactivity_enabled = (*data & 0x10) >> 4;
|
|
item->language_code_present = (*data & 0x08) >> 3;
|
|
item->text_label_present = (*data & 0x04) >> 2;
|
|
item->multi_stream_info_present = (*data & 0x02) >> 1;
|
|
item->future_extension = (*data) & 0x01;
|
|
data += 1;
|
|
|
|
if (item->language_code_present == 1) {
|
|
item->language_code = convert_lang_code (data);
|
|
data += 3;
|
|
}
|
|
|
|
if (item->text_label_present == 1) {
|
|
item->message_id = *data;
|
|
data += 1;
|
|
}
|
|
|
|
if (item->multi_stream_info_present == 1) {
|
|
num_aux_components = (*data & 0xE0) >> 5;
|
|
data += 1;
|
|
for (i = 0; i < num_aux_components; i++) {
|
|
data += 1;
|
|
}
|
|
}
|
|
|
|
if (item->future_extension == 1) {
|
|
future_extension_length = *data & 0x1F;
|
|
data += 1;
|
|
for (i = 0; i < future_extension_length; i++) {
|
|
data += 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void gst_mpegts_descriptor_parse_audio_preselection_free
|
|
(GstMpegtsAudioPreselectionDescriptor * source)
|
|
{
|
|
if (source->language_code_present == 1) {
|
|
g_free (source->language_code);
|
|
}
|
|
g_free (source);
|
|
}
|
|
|
|
void gst_mpegts_descriptor_parse_audio_preselection_dump
|
|
(GstMpegtsAudioPreselectionDescriptor * source)
|
|
{
|
|
GST_DEBUG ("[Audio Preselection Descriptor]");
|
|
GST_DEBUG (" preselection_id: 0x%02x", source->preselection_id);
|
|
GST_DEBUG ("audio_rendering_indication: 0x%02x",
|
|
source->audio_rendering_indication);
|
|
GST_DEBUG (" audio_description: %d", source->audio_description);
|
|
GST_DEBUG (" spoken_subtitles: %d", source->spoken_subtitles);
|
|
GST_DEBUG (" dialogue_enhancement: %d", source->dialogue_enhancement);
|
|
GST_DEBUG (" interactivity_enabled: %d", source->interactivity_enabled);
|
|
GST_DEBUG (" language_code_present: %d", source->language_code_present);
|
|
GST_DEBUG (" text_label_present: %d", source->text_label_present);
|
|
GST_DEBUG (" multi_stream_info_present: %d",
|
|
source->multi_stream_info_present);
|
|
GST_DEBUG (" future_extension: %d", source->future_extension);
|
|
|
|
if (source->language_code_present == 1) {
|
|
GST_DEBUG (" language_code: %s", source->language_code);
|
|
}
|
|
if (source->text_label_present == 1) {
|
|
GST_DEBUG (" message_id: 0x%02x", source->message_id);
|
|
}
|
|
GST_DEBUG ("-------------------------------");
|
|
}
|