/* * 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> G_BEGIN_DECLS /* * 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 * * These values correspond to the registered descriptor type from * the base MPEG-TS specifications (ITU H.222.0 | ISO/IEC 13818-1). * * 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 */ } GstMpegTsDescriptorType; /** * GstMpegTsMiscDescriptorType: * * The type of #GstMpegTsDescriptor * * These values correspond to miscellaneous descriptor types that are * not yet identified from known specifications. */ typedef enum { /* 0x80 - 0xFE are user defined */ GST_MTS_DESC_AC3_AUDIO_STREAM = 0x81, GST_MTS_DESC_DTG_LOGICAL_CHANNEL = 0x83, /* from DTG D-Book */ } GstMpegTsMiscDescriptorType; /** * GstMpegTsATSCDescriptorType: * * These values correspond to the registered descriptor type from * the various ATSC specifications. * * Consult the relevant specifications for more details. */ typedef enum { /* 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, } GstMpegTsATSCDescriptorType; /** * GstMpegTsISDBDescriptorType: * * These values correspond to the registered descriptor type from * the various ISDB specifications. * * Consult the relevant specifications for more details. */ typedef enum { /* 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 } GstMpegTsISDBDescriptorType; typedef struct _GstMpegTsDescriptor GstMpegTsDescriptor; #define GST_TYPE_MPEGTS_DESCRIPTOR (gst_mpegts_descriptor_get_type()) GType gst_mpegts_descriptor_get_type (void); /** * GstMpegTsDescriptor: * @tag: the type of descriptor * @tag_extension: the extended type (if @descriptor_tag is 0x7f) * @length: the length of the descriptor content (excluding tag/length field) * @data: the full descriptor data (including tag, extension, length). The first * two bytes are the @tag and @tag_extension. * * Mpeg-TS descriptor (ISO/IEC 13818-1). */ struct _GstMpegTsDescriptor { guint8 tag; guint8 tag_extension; guint8 length; guint8 *data; }; GPtrArray *gst_mpegts_parse_descriptors (guint8 * buffer, gsize buf_len); const GstMpegTsDescriptor * gst_mpegts_find_descriptor (GPtrArray *descriptors, guint8 tag); /* GST_MTS_DESC_REGISTRATION (0x05) */ GstMpegTsDescriptor *gst_mpegts_descriptor_from_registration ( const gchar *format_identifier, guint8 *additional_info, gsize additional_info_length); /* 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; 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); gboolean gst_mpegts_descriptor_parse_iso_639_language_idx (const GstMpegTsDescriptor *descriptor, guint idx, gchar (*lang)[4], GstMpegTsIso639AudioType *audio_type); guint gst_mpegts_descriptor_parse_iso_639_language_nb (const GstMpegTsDescriptor *descriptor); /* 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); GstMpegTsDescriptor * gst_mpegts_descriptor_from_custom (guint8 tag, const guint8 *data, gsize length); G_END_DECLS #endif /* GST_MPEGTS_DESCRIPTOR_H */