mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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0c6bb561e0
Adds the system time table structure and functions for convenient parsing of it and for getting the UTC datetime that it represents. Also adds its information dumping to the ts-parser example https://bugzilla.gnome.org/show_bug.cgi?id=730435
251 lines
7 KiB
C
251 lines
7 KiB
C
/*
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* mpegtspacketizer.h -
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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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#ifndef GST_ATSC_SECTION_H
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#define GST_ATSC_SECTION_H
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#include <gst/gst.h>
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#include <gst/mpegts/gstmpegtssection.h>
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#include <gst/mpegts/gstmpegtsdescriptor.h>
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G_BEGIN_DECLS
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/**
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* GstMpegTsSectionATSCTableID:
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*
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* Values for a #GstMpegTsSection table_id.
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*
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* These are the registered ATSC table_id variants.
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*
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* see also: #GstMpegTsSectionTableID
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*/
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typedef enum {
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/* ATSC (A/65) */
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GST_MTS_TABLE_ID_ATSC_MASTER_GUIDE = 0xC7,
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GST_MTS_TABLE_ID_ATSC_TERRESTRIAL_VIRTUAL_CHANNEL = 0xC8,
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GST_MTS_TABLE_ID_ATSC_CABLE_VIRTUAL_CHANNEL = 0xC9,
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GST_MTS_TABLE_ID_ATSC_RATING_REGION = 0xCA,
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GST_MTS_TABLE_ID_ATSC_EVENT_INFORMATION = 0xCB,
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GST_MTS_TABLE_ID_ATSC_CHANNEL_OR_EVENT_EXTENDED_TEXT = 0xCC,
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GST_MTS_TABLE_ID_ATSC_SYSTEM_TIME = 0xCD,
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/* ATSC (A/90) */
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GST_MTS_TABLE_ID_ATSC_DATA_EVENT = 0xCE,
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GST_MTS_TABLE_ID_ATSC_DATA_SERVICE = 0xCF,
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/* 0xD0 ?? */
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GST_MTS_TABLE_ID_ATSC_NETWORK_RESOURCE = 0xD1,
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GST_MTS_TABLE_ID_ATSC_LONG_TERM_SERVICE = 0xD2,
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GST_MTS_TABLE_ID_ATSC_DIRECTED_CHANNEL_CHANGE = 0xD3,
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GST_MTS_TABLE_ID_ATSC_DIRECTED_CHANNEL_CHANGE_SECTION_CODE = 0xD4,
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/* 0xD5 ?? */
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GST_MTS_TABLE_ID_ATSC_AGGREGATE_EVENT_INFORMATION = 0xD6,
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GST_MTS_TABLE_ID_ATSC_AGGREGATE_EXTENDED_TEXT = 0xD7,
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/* 0xD8 ?? */
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GST_MTS_TABLE_ID_ATSC_AGGREGATE_DATA_EVENT = 0xD9,
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GST_MTS_TABLE_ID_ATSC_SATELLITE_VIRTUAL_CHANNEL = 0xDA,
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} GstMpegTsSectionATSCTableID;
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/* TVCT/CVCT */
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#define GST_TYPE_MPEGTS_ATSC_VCT (gst_mpegts_atsc_vct_get_type ())
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#define GST_TYPE_MPEGTS_ATSC_VCT_SOURCE (gst_mpegts_atsc_vct_source_get_type ())
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typedef struct _GstMpegTsAtscVCTSource GstMpegTsAtscVCTSource;
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typedef struct _GstMpegTsAtscVCT GstMpegTsAtscVCT;
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/**
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* GstMpegTsAtscVCTSource:
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*
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* Source from a @GstMpegTsAtscVCT, can be used both for TVCT and CVCT tables
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*/
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struct _GstMpegTsAtscVCTSource
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{
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gchar *short_name;
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guint16 major_channel_number;
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guint16 minor_channel_number;
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guint8 modulation_mode;
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guint32 carrier_frequency;
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guint16 channel_TSID;
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guint16 program_number;
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/* FIXME: */
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guint8 ETM_location;
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gboolean access_controlled;
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gboolean hidden;
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gboolean path_select; /* CVCT only - reserved bit in TVCT */
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gboolean out_of_band; /* CVCT only - reserved bit in TVCT */
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gboolean hide_guide;
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/* FIXME: */
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guint8 service_type;
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guint16 source_id;
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GPtrArray *descriptors;
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};
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/**
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* GstMpegTsAtscVCT:
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*
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* Represents both:
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* Terrestrial Virtual Channel Table (A65)
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* Cable Virtual Channel Table (A65)
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*
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*/
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struct _GstMpegTsAtscVCT
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{
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guint16 transport_stream_id;
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guint8 protocol_version;
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GPtrArray *sources;
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GPtrArray *descriptors;
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};
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GType gst_mpegts_atsc_vct_get_type (void);
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GType gst_mpegts_atsc_vct_source_get_type (void);
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const GstMpegTsAtscVCT * gst_mpegts_section_get_atsc_tvct (GstMpegTsSection * section);
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const GstMpegTsAtscVCT * gst_mpegts_section_get_atsc_cvct (GstMpegTsSection * section);
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/* MGT */
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#define GST_TYPE_MPEGTS_ATSC_MGT (gst_mpegts_atsc_mgt_get_type ())
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#define GST_TYPE_MPEGTS_ATSC_MGT_TABLE (gst_mpegts_atsc_mgt_table_get_type ())
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typedef struct _GstMpegTsAtscMGTTable GstMpegTsAtscMGTTable;
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typedef struct _GstMpegTsAtscMGT GstMpegTsAtscMGT;
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typedef enum {
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GST_MPEG_TS_ATSC_MGT_TABLE_TYPE_EIT0 = 0x0100,
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GST_MPEG_TS_ATSC_MGT_TABLE_TYPE_EIT127 = 0x017F,
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GST_MPEG_TS_ATSC_MGT_TABLE_TYPE_ETT0 = 0x0200,
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GST_MPEG_TS_ATSC_MGT_TABLE_TYPE_ETT127 = 0x027F
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} GstMpegTsAtscMGTTableType;
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/**
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* GstMpegTsAtscMGTTable:
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*
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* Source from a @GstMpegTsAtscMGT
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*/
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struct _GstMpegTsAtscMGTTable
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{
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guint16 table_type;
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guint16 pid;
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guint8 version_number;
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guint32 number_bytes;
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GPtrArray *descriptors;
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};
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/**
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* GstMpegTsAtscMGT:
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*
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* Terrestrial Virtual Channel Table (A65)
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*
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*/
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struct _GstMpegTsAtscMGT
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{
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guint8 protocol_version;
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guint16 tables_defined;
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GPtrArray *tables;
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GPtrArray *descriptors;
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};
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GType gst_mpegts_atsc_mgt_get_type (void);
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GType gst_mpegts_atsc_mgt_table_get_type (void);
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const GstMpegTsAtscMGT * gst_mpegts_section_get_atsc_mgt (GstMpegTsSection * section);
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/* ETT */
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#define GST_TYPE_MPEGTS_ATSC_STRING_SEGMENT (gst_mpegts_atsc_string_segment_get_type())
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#define GST_TYPE_MPEGTS_ATSC_MULT_STRING (gst_mpegts_atsc_mult_string_get_type())
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#define GST_TYPE_MPEGTS_ATSC_ETT (gst_mpegts_atsc_ett_get_type())
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typedef struct _GstMpegTsAtscStringSegment GstMpegTsAtscStringSegment;
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typedef struct _GstMpegTsAtscMultString GstMpegTsAtscMultString;
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typedef struct _GstMpegTsAtscETT GstMpegTsAtscETT;
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struct _GstMpegTsAtscStringSegment {
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guint8 compression_type;
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guint8 mode;
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guint8 compressed_data_size;
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guint8 *compressed_data;
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gchar *cached_string;
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};
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const gchar * gst_mpegts_atsc_string_segment_get_string (GstMpegTsAtscStringSegment * seg);
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struct _GstMpegTsAtscMultString {
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gchar iso_639_langcode[4];
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GPtrArray *segments;
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};
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/**
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* GstMpegTsAtscETT:
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* @events: (element-type FIXME): List of texts
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*
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* Extended Text Table (ATSC)
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*
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*/
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struct _GstMpegTsAtscETT
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{
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guint16 protocol_version;
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guint32 etm_id;
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GPtrArray *messages;
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};
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GType gst_mpegts_atsc_string_segment_get_type (void);
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GType gst_mpegts_atsc_mult_string_get_type (void);
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GType gst_mpegts_atsc_ett_get_type (void);
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const GstMpegTsAtscETT *gst_mpegts_section_get_atsc_ett (GstMpegTsSection *section);
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/* STT */
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#define GST_TYPE_MPEGTS_ATSC_STT (gst_mpegts_atsc_stt_get_type ())
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typedef struct _GstMpegTsAtscSTT GstMpegTsAtscSTT;
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/**
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* GstMpegTsAtscSTT:
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*
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* System Time Table (A65)
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*
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*/
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struct _GstMpegTsAtscSTT
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{
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guint8 protocol_version;
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guint32 system_time;
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guint8 gps_utc_offset;
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gboolean ds_status;
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guint8 ds_dayofmonth;
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guint8 ds_hour;
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GPtrArray *descriptors;
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GstDateTime *utc_datetime;
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};
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GType gst_mpegts_atsc_stt_get_type (void);
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const GstMpegTsAtscSTT * gst_mpegts_section_get_atsc_stt (GstMpegTsSection * section);
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/* FIXME receive a non-const parameter but we only provide a const getter */
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GstDateTime * gst_mpegts_atsc_stt_get_datetime_utc (GstMpegTsAtscSTT * stt);
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G_END_DECLS
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#endif /* GST_MPEGTS_SECTION_H */
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