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gstreamer/gst-libs/gst/mpegts/gstmpegtsdescriptor.h
Edward Hervey 3665e8543a gst-libs: New Mpeg-TS support library 
Exposes various MPEG-TS (ISO/IEC 13818-1) and DVB (EN 300 468) Section
Information as well as descriptors for usage by plugins and applications.

This replaces entirely the old GstStructure-based system for conveying
mpeg-ts information to applications and other plugins.

Parsing and validation is done on a "when-needed" basis. This ensures
the minimal overhead for elements and applications creating and using
sections and descriptors.

Since all information is made available, this also allows applications
to parse custom sections and descriptors.

Right now the library is targeted towards parsing, but the structures
could be used in the future to allow applications to create and inject
sections and descriptors (for usage by various mpeg-ts elements).

https://bugzilla.gnome.org/show_bug.cgi?id=702724
2013-07-03 09:17:25 +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_MPEGTS_DESCRIPTOR_H
#define GST_MPEGTS_DESCRIPTOR_H
#include <gst/gst.h>
/*
* descriptor_tag TS PS Identification
* 0 n/a n/a Reserved
* 1 n/a n/a Reserved
* 2 X X video_stream_descriptor
* 3 X X audio_stream_descriptor
* 4 X X hierarchy_descriptor
* 5 X X registration_descriptor
* 6 X X data_stream_alignment_descriptor
* 7 X X target_background_grid_descriptor
* 8 X X video_window_descriptor
* 9 X X CA_descriptor
* 10 X X ISO_639_language_descriptor
* 11 X X system_clock_descriptor
* 12 X X multiplex_buffer_utilization_descriptor
* 13 X X copyright_descriptor
* 14 X maximum bitrate descriptor
* 15 X X private data indicator descriptor
* 16 X X smoothing buffer descriptor
* 17 X STD_descriptor
* 18 X X IBP descriptor
* 19-63 n/a n/a ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved
* 64-255 n/a n/a User Private
*/
/**
* GstMpegTSDescriptorType:
*
* The type of #GstMpegTSDescriptor
*
* Consult the relevant specifications for more details.
*/
typedef enum {
/* 0-18 ISO/IEC 13818-1 (H222.0 06/2012) */
GST_MTS_DESC_RESERVED_00 = 0x00,
GST_MTS_DESC_RESERVED_01 = 0x01,
GST_MTS_DESC_VIDEO_STREAM = 0x02,
GST_MTS_DESC_AUDIO_STREAM = 0x03,
GST_MTS_DESC_HIERARCHY = 0x04,
GST_MTS_DESC_REGISTRATION = 0x05,
GST_MTS_DESC_DATA_STREAM_ALIGNMENT = 0x06,
GST_MTS_DESC_TARGET_BACKGROUND_GRID = 0x07,
GST_MTS_DESC_VIDEO_WINDOW = 0x08,
GST_MTS_DESC_CA = 0x09,
GST_MTS_DESC_ISO_639_LANGUAGE = 0x0A,
GST_MTS_DESC_SYSTEM_CLOCK = 0x0B,
GST_MTS_DESC_MULTIPLEX_BUFFER_UTILISATION = 0x0C,
GST_MTS_DESC_COPYRIGHT = 0x0D,
GST_MTS_DESC_MAXIMUM_BITRATE = 0x0E,
GST_MTS_DESC_PRIVATE_DATA_INDICATOR = 0x0F,
GST_MTS_DESC_SMOOTHING_BUFFER = 0x10,
GST_MTS_DESC_STD = 0x11,
GST_MTS_DESC_IBP = 0x12,
/* 19-26 Defined in ISO/IEC 13818-6 (Extensions for DSM-CC) */
GST_MTS_DESC_DSMCC_CAROUSEL_IDENTIFIER = 0x13,
GST_MTS_DESC_DSMCC_ASSOCIATION_TAG = 0x14,
GST_MTS_DESC_DSMCC_DEFERRED_ASSOCIATION_TAG = 0x15,
/* 0x16 is reserved (so far) */
GST_MTS_DESC_DSMCC_NPT_REFERENCE = 0x17,
GST_MTS_DESC_DSMCC_NPT_ENDPOINT = 0x18,
GST_MTS_DESC_DSMCC_STREAM_MODE = 0x19,
GST_MTS_DESC_DSMCC_STREAM_EVENT = 0x1A,
/* 27-54 Later additions to ISO/IEC 13818-1 (H222.0 06/2012) */
GST_MTS_DESC_MPEG4_VIDEO = 0x1B,
GST_MTS_DESC_MPEG4_AUDIO = 0x1C,
GST_MTS_DESC_IOD = 0x1D,
GST_MTS_DESC_SL = 0x1E,
GST_MTS_DESC_FMC = 0x1F,
GST_MTS_DESC_EXTERNAL_ES_ID = 0x20,
GST_MTS_DESC_MUX_CODE = 0x21,
GST_MTS_DESC_FMX_BUFFER_SIZE = 0x22,
GST_MTS_DESC_MULTIPLEX_BUFFER = 0x23,
GST_MTS_DESC_CONTENT_LABELING = 0x24,
GST_MTS_DESC_METADATA_POINTER = 0x25,
GST_MTS_DESC_METADATA = 0x26,
GST_MTS_DESC_METADATA_STD = 0x27,
GST_MTS_DESC_AVC_VIDEO = 0x28,
/* defined in ISO/IEC 13818-11, MPEG-2 IPMP */
GST_MTS_DESC_IPMP = 0x29,
GST_MTS_DESC_AVC_TIMING_AND_HRD = 0x2A,
GST_MTS_DESC_MPEG2_AAC_AUDIO = 0x2B,
GST_MTS_DESC_FLEX_MUX_TIMING = 0x2C,
GST_MTS_DESC_MPEG4_TEXT = 0x2D,
GST_MTS_DESC_MPEG4_AUDIO_EXTENSION = 0x2E,
GST_MTS_DESC_AUXILIARY_VIDEO_STREAM = 0x2F,
GST_MTS_DESC_SVC_EXTENSION = 0x30,
GST_MTS_DESC_MVC_EXTENSION = 0x31,
GST_MTS_DESC_J2K_VIDEO = 0x32,
GST_MTS_DESC_MVC_OPERATION_POINT = 0x33,
GST_MTS_DESC_MPEG2_STEREOSCOPIC_VIDEO_FORMAT = 0x34,
GST_MTS_DESC_STEREOSCOPIC_PROGRAM_INFO = 0x35,
GST_MTS_DESC_STEREOSCOPIC_VIDEO_INFO = 0x36,
/* 55-63 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved */
/* 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,
/* 0x7D and 0x7E are reserved for future use */
GST_MTS_DESC_DVB_EXTENSION = 0x7F,
/* 0x80 - 0xFE are user defined */
GST_MTS_DESC_AC3_AUDIO_STREAM = 0x81,
GST_MTS_DESC_DTG_LOGICAL_CHANNEL = 0x83, /* from DTG D-Book */
/* ATSC A/65 2009 */
GST_MTS_DESC_ATSC_STUFFING = 0x80,
GST_MTS_DESC_ATSC_AC3 = 0x83,
GST_MTS_DESC_ATSC_CAPTION_SERVICE = 0x86,
GST_MTS_DESC_ATSC_CONTENT_ADVISORY = 0x87,
GST_MTS_DESC_ATSC_EXTENDED_CHANNEL_NAME = 0xA0,
GST_MTS_DESC_ATSC_SERVICE_LOCATION = 0xA1,
GST_MTS_DESC_ATSC_TIME_SHIFTED_SERVICE = 0xA2,
GST_MTS_DESC_ATSC_COMPONENT_NAME = 0xA3,
GST_MTS_DESC_ATSC_DCC_DEPARTING_REQUEST = 0xA8,
GST_MTS_DESC_ATSC_DCC_ARRIVING_REQUEST = 0xA9,
GST_MTS_DESC_ATSC_REDISTRIBUTION_CONTROL = 0xAA,
GST_MTS_DESC_ATSC_GENRE = 0xAB,
GST_MTS_DESC_ATSC_PRIVATE_INFORMATION = 0xAD,
/* ATSC A/53:3 2009 */
GST_MTS_DESC_ATSC_ENHANCED_SIGNALING = 0xB2,
/* ATSC A/90 */
GST_MTS_DESC_ATSC_DATA_SERVICE = 0xA4,
GST_MTS_DESC_ATSC_PID_COUNT = 0xA5,
GST_MTS_DESC_ATSC_DOWNLOAD_DESCRIPTOR = 0xA6,
GST_MTS_DESC_ATSC_MULTIPROTOCOL_ENCAPSULATION = 0xA7,
GST_MTS_DESC_ATSC_MODULE_LINK = 0xB4,
GST_MTS_DESC_ATSC_CRC32 = 0xB5,
GST_MTS_DESC_ATSC_GROUP_LINK = 0xB8,
/* ISDB ARIB B10 v4.6 */
GST_MTS_DESC_ISDB_HIERARCHICAL_TRANSMISSION = 0xC0,
GST_MTS_DESC_ISDB_DIGITAL_COPY_CONTROL = 0xC1,
GST_MTS_DESC_ISDB_NETWORK_IDENTIFICATION = 0xC2,
GST_MTS_DESC_ISDB_PARTIAL_TS_TIME = 0xc3,
GST_MTS_DESC_ISDB_AUDIO_COMPONENT = 0xc4,
GST_MTS_DESC_ISDB_HYPERLINK = 0xc5,
GST_MTS_DESC_ISDB_TARGET_REGION = 0xc6,
GST_MTS_DESC_ISDB_DATA_CONTENT = 0xc7,
GST_MTS_DESC_ISDB_VIDEO_DECODE_CONTROL = 0xc8,
GST_MTS_DESC_ISDB_DOWNLOAD_CONTENT = 0xc9,
GST_MTS_DESC_ISDB_CA_EMM_TS = 0xca,
GST_MTS_DESC_ISDB_CA_CONTRACT_INFORMATION = 0xcb,
GST_MTS_DESC_ISDB_CA_SERVICE = 0xcc,
GST_MTS_DESC_ISDB_TS_INFORMATION = 0xcd,
GST_MTS_DESC_ISDB_EXTENDED_BROADCASTER = 0xce,
GST_MTS_DESC_ISDB_LOGO_TRANSMISSION = 0xcf,
GST_MTS_DESC_ISDB_BASIC_LOCAL_EVENT = 0xd0,
GST_MTS_DESC_ISDB_REFERENCE = 0xd1,
GST_MTS_DESC_ISDB_NODE_RELATION = 0xd2,
GST_MTS_DESC_ISDB_SHORT_NODE_INFORMATION = 0xd3,
GST_MTS_DESC_ISDB_STC_REFERENCE = 0xd4,
GST_MTS_DESC_ISDB_SERIES = 0xd5,
GST_MTS_DESC_ISDB_EVENT_GROUP = 0xd6,
GST_MTS_DESC_ISDB_SI_PARAMETER = 0xd7,
GST_MTS_DESC_ISDB_BROADCASTER_NAME = 0xd8,
GST_MTS_DESC_ISDB_COMPONENT_GROUP = 0xd9,
GST_MTS_DESC_ISDB_SI_PRIME_TS = 0xda,
GST_MTS_DESC_ISDB_BOARD_INFORMATION = 0xdb,
GST_MTS_DESC_ISDB_LDT_LINKAGE = 0xdc,
GST_MTS_DESC_ISDB_CONNECTED_TRANSMISSION = 0xdd,
GST_MTS_DESC_ISDB_CONTENT_AVAILABILITY = 0xde,
/* ... */
GST_MTS_DESC_ISDB_SERVICE_GROUP = 0xe0
} GstMpegTSDescriptorType;
typedef struct _GstMpegTSDescriptor GstMpegTSDescriptor;
#define GST_TYPE_MPEGTS_DESCRIPTOR (gst_mpegts_descriptor_get_type())
GType gst_mpegts_descriptor_get_type (void);
/**
* GstMpegTSDescriptor:
* @descriptor_tag: the type of descriptor
* @descriptor_tag_extension: the extended type (if @descriptor_tag is 0x7f)
* @descriptor_length: the length of the descriptor content (excluding tag/length field)
* @descriptor_data: the full descriptor data (including tag, extension, length)
*
* Mpeg-TS descriptor (ISO/IEC 13818-1).
*/
struct _GstMpegTSDescriptor
{
GstMpegTSDescriptorType descriptor_tag;
guint8 descriptor_tag_extension;
guint8 descriptor_length;
const guint8 *descriptor_data;
};
GArray *gst_mpegts_parse_descriptors (guint8 * buffer, gsize buf_len);
const GstMpegTSDescriptor * gst_mpegts_find_descriptor (GArray *descriptors,
guint8 tag);
/* GST_MTS_DESC_ISO_639_LANGUAGE (0x0A) */
/**
* GstMpegTSISO639AudioType:
*
* Type of audio streams
*
* Defined in ITU H.222.0 Table 2-60
*/
typedef enum {
GST_MPEGTS_AUDIO_TYPE_UNDEFINED = 0,
GST_MPEGTS_AUDIO_TYPE_CLEAN_EFFECTS,
GST_MPEGTS_AUDIO_TYPE_HEARING_IMPAIRED,
GST_MPEGTS_AUDIO_TYPE_VISUAL_IMPAIRED_COMMENTARY
} GstMpegTSIso639AudioType;
/* FIXME: Make two methods. One for getting the number of languages,
* and the other for getting the (allocated, null-terminated) language
* and audio type */
typedef struct _GstMpegTSISO639LanguageDescriptor GstMpegTSISO639LanguageDescriptor;
struct _GstMpegTSISO639LanguageDescriptor
{
guint nb_language;
gchar language[64][3];
GstMpegTSIso639AudioType audio_type[64];
};
gboolean gst_mpegts_descriptor_parse_iso_639_language (const GstMpegTSDescriptor *descriptor,
GstMpegTSISO639LanguageDescriptor *res);
/* 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);
/* FIXME : Implement */
/* 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;
/* FIXME : enum type for service_type ? */
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_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 */
/* GST_MTS_DESC_DTG_LOGICAL_CHANNEL (0x83) */
typedef struct _GstMpegTSLogicalChannelDescriptor GstMpegTSLogicalChannelDescriptor;
typedef struct _GstMpegTSLogicalChannel GstMpegTSLogicalChannel;
struct _GstMpegTSLogicalChannel
{
guint16 service_id;
gboolean visible_service;
guint16 logical_channel_number;
};
struct _GstMpegTSLogicalChannelDescriptor
{
guint nb_channels;
GstMpegTSLogicalChannel channels[64];
};
/* FIXME : Maybe make two methods. One for getting the number of channels,
* and the other for getting the content for one channel ? */
gboolean
gst_mpegts_descriptor_parse_logical_channel (const GstMpegTSDescriptor *descriptor,
GstMpegTSLogicalChannelDescriptor *res);
#endif /* GST_MPEGTS_DESCRIPTOR_H */
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