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gstreamer/gst-libs/gst/mpegts/gst-dvb-descriptor.h
Edward Hervey f36e0bca83 mpegts: Add support for parsing DVB Subtitling descriptor (0x59) 
Essentially works in the same vein as the iso639 descriptor code
2013-10-11 10:21:25 +02:00

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/*
* gstmpegtsdescriptor.h -
* Copyright (C) 2013 Edward Hervey
*
* Authors:
* Edward Hervey <edward@collabora.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* Some parts of this code come from the Fluendo MPEG Demuxer plugin.
*
* The Initial Developer of the Original Code is Fluendo, S.L.
* Portions created by Fluendo, S.L. are Copyright (C) 2005
* Fluendo, S.L. All Rights Reserved.
*
* Contributor(s): Wim Taymans <wim@fluendo.com>
*/
#ifndef GST_DVB_DESCRIPTOR_H
#define GST_DVB_DESCRIPTOR_H
#include <gst/gst.h>
/**
* GstMpegTsDVBDescriptorType:
*
* The type of #GstMpegTsDescriptor
*
* These values correspond to the registered descriptor type from
* the various DVB specifications.
*
* Consult the relevant specifications for more details.
*/
typedef enum {
/* 64-127 DVB tags ETSI EN 300 468
* (Specification for Service Information (SI) in DVB systems)
*/
GST_MTS_DESC_DVB_NETWORK_NAME = 0x40,
GST_MTS_DESC_DVB_SERVICE_LIST = 0x41,
GST_MTS_DESC_DVB_STUFFING = 0x42,
GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM = 0x43,
GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM = 0x44,
GST_MTS_DESC_DVB_VBI_DATA = 0x45,
GST_MTS_DESC_DVB_VBI_TELETEXT = 0x46,
GST_MTS_DESC_DVB_BOUQUET_NAME = 0x47,
GST_MTS_DESC_DVB_SERVICE = 0x48,
GST_MTS_DESC_DVB_COUNTRY_AVAILABILITY = 0x49,
GST_MTS_DESC_DVB_LINKAGE = 0x4A,
GST_MTS_DESC_DVB_NVOD_REFERENCE = 0x4B,
GST_MTS_DESC_DVB_TIME_SHIFTED_SERVICE = 0x4C,
GST_MTS_DESC_DVB_SHORT_EVENT = 0x4D,
GST_MTS_DESC_DVB_EXTENDED_EVENT = 0x4E,
GST_MTS_DESC_DVB_TIME_SHIFTED_EVENT = 0x4F,
GST_MTS_DESC_DVB_COMPONENT = 0x50,
GST_MTS_DESC_DVB_MOSAIC = 0x51,
GST_MTS_DESC_DVB_STREAM_IDENTIFIER = 0x52,
GST_MTS_DESC_DVB_CA_IDENTIFIER = 0x53,
GST_MTS_DESC_DVB_CONTENT = 0x54,
GST_MTS_DESC_DVB_PARENTAL_RATING = 0x55,
GST_MTS_DESC_DVB_TELETEXT = 0x56,
GST_MTS_DESC_DVB_TELEPHONE = 0x57,
GST_MTS_DESC_DVB_LOCAL_TIME_OFFSET = 0x58,
GST_MTS_DESC_DVB_SUBTITLING = 0x59,
GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM = 0x5A,
GST_MTS_DESC_DVB_MULTILINGUAL_NETWORK_NAME = 0x5B,
GST_MTS_DESC_DVB_MULTILINGUAL_BOUQUET_NAME = 0x5C,
GST_MTS_DESC_DVB_MULTILINGUAL_SERVICE_NAME = 0x5D,
GST_MTS_DESC_DVB_MULTILINGUAL_COMPONENT = 0x5E,
GST_MTS_DESC_DVB_PRIVATE_DATA_SPECIFIER = 0x5F,
GST_MTS_DESC_DVB_SERVICE_MOVE = 0x60,
GST_MTS_DESC_DVB_SHORT_SMOOTHING_BUFFER = 0x61,
GST_MTS_DESC_DVB_FREQUENCY_LIST = 0x62,
GST_MTS_DESC_DVB_PARTIAL_TRANSPORT_STREAM = 0x63,
GST_MTS_DESC_DVB_DATA_BROADCAST = 0x64,
GST_MTS_DESC_DVB_SCRAMBLING = 0x65,
GST_MTS_DESC_DVB_DATA_BROADCAST_ID = 0x66,
GST_MTS_DESC_DVB_TRANSPORT_STREAM = 0x67,
GST_MTS_DESC_DVB_DSNG = 0x68,
GST_MTS_DESC_DVB_PDC = 0x69,
GST_MTS_DESC_DVB_AC3 = 0x6A,
GST_MTS_DESC_DVB_ANCILLARY_DATA = 0x6B,
GST_MTS_DESC_DVB_CELL_LIST = 0x6C,
GST_MTS_DESC_DVB_CELL_FREQUENCY_LINK = 0x6D,
GST_MTS_DESC_DVB_ANNOUNCEMENT_SUPPORT = 0x6E,
GST_MTS_DESC_DVB_APPLICATION_SIGNALLING = 0x6F,
GST_MTS_DESC_DVB_ADAPTATION_FIELD_DATA = 0x70,
GST_MTS_DESC_DVB_SERVICE_IDENTIFIER = 0x71,
GST_MTS_DESC_DVB_SERVICE_AVAILABILITY = 0x72,
GST_MTS_DESC_DVB_DEFAULT_AUTHORITY = 0x73,
GST_MTS_DESC_DVB_RELATED_CONTENT = 0x74,
GST_MTS_DESC_DVB_TVA_ID = 0x75,
GST_MTS_DESC_DVB_CONTENT_IDENTIFIER = 0x76,
GST_MTS_DESC_DVB_TIMESLICE_FEC_IDENTIFIER = 0x77,
GST_MTS_DESC_DVB_ECM_REPETITION_RATE = 0x78,
GST_MTS_DESC_DVB_S2_SATELLITE_DELIVERY_SYSTEM = 0x79,
GST_MTS_DESC_DVB_ENHANCED_AC3 = 0x7A,
GST_MTS_DESC_DVB_DTS = 0x7B,
GST_MTS_DESC_DVB_AAC = 0x7C,
GST_MTS_DESC_DVB_XAIT_LOCATION = 0x7D,
GST_MTS_DESC_DVB_FTA_CONTENT_MANAGEMENT = 0x7E,
GST_MTS_DESC_DVB_EXTENSION = 0x7F,
} GstMpegTsDVBDescriptorType;
/* GST_MTS_DESC_DVB_CAROUSEL_IDENTIFIER (0x13) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_NETWORK_NAME (0x40) */
gboolean gst_mpegts_descriptor_parse_dvb_network_name (const GstMpegTsDescriptor *descriptor,
gchar **name);
/* GST_MTS_DESC_DVB_SATELLITE_DELIVERY_SYSTEM (0x43) */
typedef struct _GstMpegTsSatelliteDeliverySystemDescriptor GstMpegTsSatelliteDeliverySystemDescriptor;
typedef enum {
GST_MPEGTS_MODULATION_QPSK = 0,
GST_MPEGTS_MODULATION_QAM_16,
GST_MPEGTS_MODULATION_QAM_32,
GST_MPEGTS_MODULATION_QAM_64,
GST_MPEGTS_MODULATION_QAM_128,
GST_MPEGTS_MODULATION_QAM_256,
GST_MPEGTS_MODULATION_QAM_AUTO,
GST_MPEGTS_MODULATION_VSB_8,
GST_MPEGTS_MODULATION_VSB_16,
GST_MPEGTS_MODULATION_PSK_8,
GST_MPEGTS_MODULATION_APSK_16,
GST_MPEGTS_MODULATION_APSK_32,
GST_MPEGTS_MODULATION_DQPSK,
GST_MPEGTS_MODULATION_QAM_4_NR_,
GST_MPEGTS_MODULATION_NONE
} GstMpegTsModulationType;
typedef enum {
GST_MPEGTS_FEC_NONE = 0,
GST_MPEGTS_FEC_1_2,
GST_MPEGTS_FEC_2_3,
GST_MPEGTS_FEC_3_4,
GST_MPEGTS_FEC_4_5,
GST_MPEGTS_FEC_5_6,
GST_MPEGTS_FEC_6_7,
GST_MPEGTS_FEC_7_8,
GST_MPEGTS_FEC_8_9,
GST_MPEGTS_FEC_AUTO,
GST_MPEGTS_FEC_3_5,
GST_MPEGTS_FEC_9_10,
GST_MPEGTS_FEC_2_5
} GstMpegTsDVBCodeRate;
typedef enum {
GST_MPEGTS_ROLLOFF_35 = 0,
GST_MPEGTS_ROLLOFF_20,
GST_MPEGTS_ROLLOFF_25,
GST_MPEGTS_ROLLOFF_RESERVED,
GST_MPEGTS_ROLLOFF_AUTO
} GstMpegTsSatelliteRolloff;
typedef enum {
GST_MPEGTS_POLARIZATION_LINEAR_HORIZONTAL = 0,
GST_MPEGTS_POLARIZATION_LINEAR_VERTICAL,
GST_MPEGTS_POLARIZATION_CIRCULAR_LEFT,
GST_MPEGTS_POLARIZATION_CIRCULAR_RIGHT
} GstMpegTsSatellitePolarizationType;
/**
* GstMpegTsSatelliteDeliverySystemDescriptor:
* @frequency: the frequency in kHz (kiloHertz)
* @orbital_position: the orbital position in degrees
* @west_east: If %TRUE, the satellite is in the eastern part of the orbit,
* else in the western part.
* @polarization: The polarization of the transmitted signal
* @roll_off: Roll-off factor used in DVB-S2
* @modulation_system: modulation system, %TRUE if DVB-S2, else DVB-S
* @modulation_type: Modulation scheme used
* @symbol_rate: Symbol rate (in symbols per second)
* @fec_inner: inner FEC scheme used
*
* Satellite Delivery System Descriptor (EN 300 468 v.1.13.1)
*/
struct _GstMpegTsSatelliteDeliverySystemDescriptor
{
guint32 frequency;
gfloat orbital_position;
gboolean west_east;
GstMpegTsSatellitePolarizationType polarization;
GstMpegTsSatelliteRolloff roll_off;
gboolean modulation_system;
GstMpegTsModulationType modulation_type;
guint32 symbol_rate;
GstMpegTsDVBCodeRate fec_inner;
};
gboolean gst_mpegts_descriptor_parse_satellite_delivery_system (const GstMpegTsDescriptor *descriptor,
GstMpegTsSatelliteDeliverySystemDescriptor *res);
/* GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM (0x44) */
typedef enum {
GST_MPEGTS_CABLE_OUTER_FEC_UNDEFINED = 0,
GST_MPEGTS_CABLE_OUTER_FEC_NONE,
GST_MPEGTS_CABLE_OUTER_FEC_RS_204_188,
} GstMpegTsCableOuterFECScheme;
typedef struct _GstMpegTsCableDeliverySystemDescriptor GstMpegTsCableDeliverySystemDescriptor;
/**
* GstMpegTsCableDeliverySystemDescriptor:
* @frequency: the frequency in Hz (Hertz)
* @outer_fec: the outer FEC scheme used
* @modulation: Modulation scheme used
* @symbol_rate: Symbol rate (in symbols per second)
* @fec_inner: inner FEC scheme used
*
* Cable Delivery System Descriptor (EN 300 468 v.1.13.1)
*/
struct _GstMpegTsCableDeliverySystemDescriptor
{
guint32 frequency;
GstMpegTsCableOuterFECScheme outer_fec;
GstMpegTsModulationType modulation;
guint32 symbol_rate;
GstMpegTsDVBCodeRate fec_inner;
};
gboolean gst_mpegts_descriptor_parse_cable_delivery_system (const GstMpegTsDescriptor *descriptor,
GstMpegTsCableDeliverySystemDescriptor *res);
/* GST_MTS_DESC_DVB_SERVICE (0x48) */
/**
* GstMpegTsDVBServiceType:
*
* The type of service of a channel.
*
* As specified in Table 87 of ETSI EN 300 468 v1.13.1
*/
typedef enum {
GST_DVB_SERVICE_RESERVED_00 = 0x00,
GST_DVB_SERVICE_DIGITAL_TELEVISION,
GST_DVB_SERVICE_DIGITAL_RADIO_SOUND,
GST_DVB_SERVICE_TELETEXT,
GST_DVB_SERVICE_NVOD_REFERENCE,
GST_DVB_SERVICE_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_MOSAIC,
GST_DVB_SERVICE_FM_RADIO,
GST_DVB_SERVICE_DVB_SRM,
GST_DVB_SERVICE_RESERVED_09,
GST_DVB_SERVICE_ADVANCED_CODEC_DIGITAL_RADIO_SOUND,
GST_DVB_SERVICE_ADVANCED_CODEC_MOSAIC,
GST_DVB_SERVICE_DATA_BROADCAST,
GST_DVB_SERVICE_RESERVED_0D_COMMON_INTERFACE,
GST_DVB_SERVICE_RCS_MAP,
GST_DVB_SERVICE_RCS_FLS,
GST_DVB_SERVICE_DVB_MHP,
GST_DVB_SERVICE_MPEG2_HD_DIGITAL_TELEVISION,
/* 0x12 - 015 Reserved for future use */
GST_DVB_SERVICE_ADVANCED_CODEC_SD_DIGITAL_TELEVISION = 0x16,
GST_DVB_SERVICE_ADVANCED_CODEC_SD_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_ADVANCED_CODEC_SD_NVOD_REFERENCE,
GST_DVB_SERVICE_ADVANCED_CODEC_HD_DIGITAL_TELEVISION,
GST_DVB_SERVICE_ADVANCED_CODEC_HD_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_ADVANCED_CODEC_HD_NVOD_REFERENCE,
GST_DVB_SERVICE_ADVANCED_CODEC_STEREO_HD_DIGITAL_TELEVISION,
GST_DVB_SERVICE_ADVANCED_CODEC_STEREO_HD_NVOD_TIME_SHIFTED,
GST_DVB_SERVICE_ADVANCED_CODEC_STEREO_HD_NVOD_REFERENCE,
/* 0x1F - 0x7f Reserved for future use */
/* 0x80 - 0xfe user defined */
/* 0xff Reserved for future use */
GST_DVB_SERVICE_RESERVED_FF
} GstMpegTsDVBServiceType;
gboolean gst_mpegts_descriptor_parse_dvb_service (const GstMpegTsDescriptor *descriptor,
GstMpegTsDVBServiceType *service_type,
gchar **service_name,
gchar **provider_name);
/* GST_MTS_DESC_DVB_SHORT_EVENT (0x4D) */
gboolean gst_mpegts_descriptor_parse_dvb_short_event (const GstMpegTsDescriptor *descriptor,
gchar **language_code,
gchar **event_name,
gchar **text);
/* GST_MTS_DESC_DVB_EXTENDED_EVENT (0x4E) */
typedef struct _GstMpegTsExtendedEventDescriptor GstMpegTsExtendedEventDescriptor;
typedef struct _GstMpegTsExtendedEventItem GstMpegTsExtendedEventItem;
/* FIXME : Maybe make a separate method for getting a specific item entry ? */
struct _GstMpegTsExtendedEventItem
{
gchar *item_description;
gchar *item;
};
struct _GstMpegTsExtendedEventDescriptor
{
guint8 descriptor_number;
guint8 last_descriptor_number;
gchar language_code[3];
guint8 nb_items;
GstMpegTsExtendedEventItem items[128];
gchar *text;
};
gboolean gst_mpegts_descriptor_parse_dvb_extended_event (const GstMpegTsDescriptor *descriptor,
GstMpegTsExtendedEventDescriptor *res);
/* GST_MTS_DESC_DVB_COMPONENT (0x50) */
typedef struct _GstMpegTsComponentDescriptor GstMpegTsComponentDescriptor;
struct _GstMpegTsComponentDescriptor
{
guint8 stream_content;
guint8 component_type;
guint8 component_tag;
/* FIXME : Make it a separate (allocated, null-terminated) return value */
gchar language_code[3];
gchar *text;
};
gboolean gst_mpegts_descriptor_parse_dvb_component (const GstMpegTsDescriptor *descriptor,
GstMpegTsComponentDescriptor *res);
/* GST_MTS_DESC_DVB_STREAM_IDENTIFIER (0x52) */
gboolean gst_mpegts_descriptor_parse_dvb_stream_identifier (const GstMpegTsDescriptor *descriptor,
guint8 *component_tag);
/* GST_MTS_DESC_DVB_SUBTITLING (0x59) */
gboolean gst_mpegts_descriptor_parse_dvb_subtitling_idx (const GstMpegTsDescriptor *descriptor,
guint idx, gchar (*lang)[4],
guint8 *type, guint16 *composition_page_id,
guint16 *ancillary_page_id);
guint gst_mpegts_descriptor_parse_dvb_subtitling_nb (const GstMpegTsDescriptor *descriptor);
/* GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM (0x5A) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_FREQUENCY_LIST (0x62) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_DATA_BROADCAST (0x64) */
/* FIXME: Implement */
/* GST_MTS_DESC_DVB_DATA_BROADCAST_ID (0x66) */
/* FIXME : Implement */
/* GST_MTS_DESC_DVB_AC3 (0x6a) */
/* FIXME : Implement */
#endif /* GST_MPEGTS_DESCRIPTOR_H */
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