1 /* 2 * gstmpegtsdescriptor.h - 3 * Copyright (C) 2013 Edward Hervey 4 * 5 * Authors: 6 * Edward Hervey <edward@collabora.com> 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Library General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Library General Public License for more details. 17 * 18 * You should have received a copy of the GNU Library General Public 19 * License along with this library; if not, write to the 20 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 21 * Boston, MA 02110-1301, USA. 22 * 23 * Some parts of this code come from the Fluendo MPEG Demuxer plugin. 24 * 25 * The Initial Developer of the Original Code is Fluendo, S.L. 26 * Portions created by Fluendo, S.L. are Copyright (C) 2005 27 * Fluendo, S.L. All Rights Reserved. 28 * 29 * Contributor(s): Wim Taymans <wim@fluendo.com> 30 */ 31 32 #ifndef GST_MPEGTS_DESCRIPTOR_H 33 #define GST_MPEGTS_DESCRIPTOR_H 34 35 #include <gst/gst.h> 36 #include <gst/mpegts/mpegts-prelude.h> 37 38 G_BEGIN_DECLS 39 40 /* 41 * descriptor_tag TS PS Identification 42 * 0 n/a n/a Reserved 43 * 1 n/a n/a Reserved 44 * 2 X X video_stream_descriptor 45 * 3 X X audio_stream_descriptor 46 * 4 X X hierarchy_descriptor 47 * 5 X X registration_descriptor 48 * 6 X X data_stream_alignment_descriptor 49 * 7 X X target_background_grid_descriptor 50 * 8 X X video_window_descriptor 51 * 9 X X CA_descriptor 52 * 10 X X ISO_639_language_descriptor 53 * 11 X X system_clock_descriptor 54 * 12 X X multiplex_buffer_utilization_descriptor 55 * 13 X X copyright_descriptor 56 * 14 X maximum bitrate descriptor 57 * 15 X X private data indicator descriptor 58 * 16 X X smoothing buffer descriptor 59 * 17 X STD_descriptor 60 * 18 X X IBP descriptor 61 * 19-63 n/a n/a ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved 62 * 64-255 n/a n/a User Private 63 */ 64 65 /** 66 * GstMpegtsDescriptorType: 67 * 68 * The type of #GstMpegtsDescriptor 69 * 70 * These values correspond to the registered descriptor type from 71 * the base MPEG-TS specifications (ITU H.222.0 | ISO/IEC 13818-1). 72 * 73 * Consult the relevant specifications for more details. 74 */ 75 typedef enum { 76 /* 0-18 ISO/IEC 13818-1 (H222.0 06/2012) */ 77 GST_MTS_DESC_RESERVED_00 = 0x00, 78 GST_MTS_DESC_RESERVED_01 = 0x01, 79 GST_MTS_DESC_VIDEO_STREAM = 0x02, 80 GST_MTS_DESC_AUDIO_STREAM = 0x03, 81 GST_MTS_DESC_HIERARCHY = 0x04, 82 GST_MTS_DESC_REGISTRATION = 0x05, 83 GST_MTS_DESC_DATA_STREAM_ALIGNMENT = 0x06, 84 GST_MTS_DESC_TARGET_BACKGROUND_GRID = 0x07, 85 GST_MTS_DESC_VIDEO_WINDOW = 0x08, 86 GST_MTS_DESC_CA = 0x09, 87 GST_MTS_DESC_ISO_639_LANGUAGE = 0x0A, 88 GST_MTS_DESC_SYSTEM_CLOCK = 0x0B, 89 GST_MTS_DESC_MULTIPLEX_BUFFER_UTILISATION = 0x0C, 90 GST_MTS_DESC_COPYRIGHT = 0x0D, 91 GST_MTS_DESC_MAXIMUM_BITRATE = 0x0E, 92 GST_MTS_DESC_PRIVATE_DATA_INDICATOR = 0x0F, 93 GST_MTS_DESC_SMOOTHING_BUFFER = 0x10, 94 GST_MTS_DESC_STD = 0x11, 95 GST_MTS_DESC_IBP = 0x12, 96 97 /* 19-26 Defined in ISO/IEC 13818-6 (Extensions for DSM-CC) */ 98 GST_MTS_DESC_DSMCC_CAROUSEL_IDENTIFIER = 0x13, 99 GST_MTS_DESC_DSMCC_ASSOCIATION_TAG = 0x14, 100 GST_MTS_DESC_DSMCC_DEFERRED_ASSOCIATION_TAG = 0x15, 101 /* 0x16 is reserved (so far) */ 102 GST_MTS_DESC_DSMCC_NPT_REFERENCE = 0x17, 103 GST_MTS_DESC_DSMCC_NPT_ENDPOINT = 0x18, 104 GST_MTS_DESC_DSMCC_STREAM_MODE = 0x19, 105 GST_MTS_DESC_DSMCC_STREAM_EVENT = 0x1A, 106 107 /* 27-54 Later additions to ISO/IEC 13818-1 (H222.0 06/2012) */ 108 GST_MTS_DESC_MPEG4_VIDEO = 0x1B, 109 GST_MTS_DESC_MPEG4_AUDIO = 0x1C, 110 GST_MTS_DESC_IOD = 0x1D, 111 GST_MTS_DESC_SL = 0x1E, 112 GST_MTS_DESC_FMC = 0x1F, 113 GST_MTS_DESC_EXTERNAL_ES_ID = 0x20, 114 GST_MTS_DESC_MUX_CODE = 0x21, 115 GST_MTS_DESC_FMX_BUFFER_SIZE = 0x22, 116 GST_MTS_DESC_MULTIPLEX_BUFFER = 0x23, 117 GST_MTS_DESC_CONTENT_LABELING = 0x24, 118 GST_MTS_DESC_METADATA_POINTER = 0x25, 119 GST_MTS_DESC_METADATA = 0x26, 120 GST_MTS_DESC_METADATA_STD = 0x27, 121 GST_MTS_DESC_AVC_VIDEO = 0x28, 122 /* defined in ISO/IEC 13818-11, MPEG-2 IPMP */ 123 GST_MTS_DESC_IPMP = 0x29, 124 GST_MTS_DESC_AVC_TIMING_AND_HRD = 0x2A, 125 GST_MTS_DESC_MPEG2_AAC_AUDIO = 0x2B, 126 GST_MTS_DESC_FLEX_MUX_TIMING = 0x2C, 127 GST_MTS_DESC_MPEG4_TEXT = 0x2D, 128 GST_MTS_DESC_MPEG4_AUDIO_EXTENSION = 0x2E, 129 GST_MTS_DESC_AUXILIARY_VIDEO_STREAM = 0x2F, 130 GST_MTS_DESC_SVC_EXTENSION = 0x30, 131 GST_MTS_DESC_MVC_EXTENSION = 0x31, 132 GST_MTS_DESC_J2K_VIDEO = 0x32, 133 GST_MTS_DESC_MVC_OPERATION_POINT = 0x33, 134 GST_MTS_DESC_MPEG2_STEREOSCOPIC_VIDEO_FORMAT = 0x34, 135 GST_MTS_DESC_STEREOSCOPIC_PROGRAM_INFO = 0x35, 136 GST_MTS_DESC_STEREOSCOPIC_VIDEO_INFO = 0x36, 137 138 /* 55-63 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved */ 139 } GstMpegtsDescriptorType; 140 141 /** 142 * GstMpegtsMiscDescriptorType: 143 * 144 * The type of #GstMpegtsDescriptor 145 * 146 * These values correspond to miscellaneous descriptor types that are 147 * not yet identified from known specifications. 148 */ 149 typedef enum { 150 /* 0x80 - 0xFE are user defined */ 151 GST_MTS_DESC_DTG_LOGICAL_CHANNEL = 0x83, /* from DTG D-Book, only present in NIT */ 152 } GstMpegtsMiscDescriptorType; 153 154 /** 155 * GstMpegtsSCTEDescriptorType: 156 * 157 * These values correspond to the ones defined by SCTE (amongst other in ANSI/SCTE 57) 158 * 159 * Since: 1.20 160 */ 161 typedef enum { 162 GST_MTS_DESC_SCTE_STUFFING = 0x80, 163 GST_MTS_DESC_SCTE_AC3 = 0x81, 164 GST_MTS_DESC_SCTE_FRAME_RATE = 0x82, 165 GST_MTS_DESC_SCTE_EXTENDED_VIDEO = 0x83, 166 GST_MTS_DESC_SCTE_COMPONENT_NAME = 0x84, 167 GST_MTS_DESC_SCTE_FREQUENCY_SPEC = 0x90, 168 GST_MTS_DESC_SCTE_MODULATION_PARAMS = 0x91, 169 GST_MTS_DESC_SCTE_TRANSPORT_STREAM_ID = 0x92 170 } GstMpegtsSCTEDescriptorType; 171 172 173 174 typedef struct _GstMpegtsDescriptor GstMpegtsDescriptor; 175 176 #define GST_TYPE_MPEGTS_DESCRIPTOR (gst_mpegts_descriptor_get_type()) 177 GST_MPEGTS_API 178 GType gst_mpegts_descriptor_get_type (void); 179 180 /** 181 * GstMpegtsDescriptor: 182 * @tag: the type of descriptor 183 * @tag_extension: the extended type (if @descriptor_tag is 0x7f) 184 * @length: the length of the descriptor content (excluding tag/length field) 185 * @data: the full descriptor data (including tag, extension, length). The first 186 * two bytes are the @tag and @length. 187 * 188 * Mpeg-TS descriptor (ISO/IEC 13818-1). 189 */ 190 struct _GstMpegtsDescriptor 191 { 192 guint8 tag; 193 guint8 tag_extension; 194 guint8 length; 195 guint8 *data; 196 197 /*< private >*/ 198 /* Padding for future extension */ 199 gpointer _gst_reserved[GST_PADDING]; 200 }; 201 202 GST_MPEGTS_API 203 void gst_mpegts_descriptor_free (GstMpegtsDescriptor *desc); 204 205 GST_MPEGTS_API 206 GPtrArray *gst_mpegts_parse_descriptors (guint8 * buffer, gsize buf_len); 207 208 GST_MPEGTS_API 209 const GstMpegtsDescriptor * gst_mpegts_find_descriptor (GPtrArray *descriptors, 210 guint8 tag); 211 212 GST_MPEGTS_API 213 const GstMpegtsDescriptor * gst_mpegts_find_descriptor_with_extension (GPtrArray *descriptors, 214 guint8 tag, guint8 tag_extension); 215 /** 216 * GstMpegtsRegistrationId: 217 * @GST_MTS_REGISTRATION_0: Undefined registration id 218 * @GST_MTS_REGISTRATION_AC_3: Audio AC-3, ATSC A/52 219 * @GST_MTS_REGISTRATION_AC_4: Audio AC-4, ETSI 103 190-2 220 * @GST_MTS_REGISTRATION_CUEI: SCTE 35, "Digital Program Insertion Cueing Message" 221 * @GST_MTS_REGISTRATION_drac: Dirac Video codec 222 * @GST_MTS_REGISTRATION_DTS1: DTS Audio 223 * @GST_MTS_REGISTRATION_DTS2: DTS Audio 224 * @GST_MTS_REGISTRATION_DTS3: DTS Audio 225 * @GST_MTS_REGISTRATION_EAC3: Enhanced AC-3 (i.e. EAC3) 226 * @GST_MTS_REGISTRATION_ETV1: Cablelabs ETV 227 * @GST_MTS_REGISTRATION_BSSD: SMPTE 302M, Mapping of AES3 Data in mpeg-ts 228 * @GST_MTS_REGISTRATION_GA94: ATSC A/53 compliant stream (i.e. ATSC) 229 * @GST_MTS_REGISTRATION_HDMV: Blu-ray, "System Description Blu-ray Disc 230 * Read-Only Format part 3 Audio Visual Basic Specifications" 231 * @GST_MTS_REGISTRATION_KLVA: SMPTE RP217 : Non-synchronized Mapping of KLV 232 * Packets in mpeg-ts 233 * @GST_MTS_REGISTRATION_OPUS: Opus Audio 234 * @GST_MTS_REGISTRATION_TSHV: HDV (Sony) 235 * @GST_MTS_REGISTRATION_VC_1: Video VC-1, SMPTE RP227 "VC-1 Bitstream Transport Encodings" 236 * @GST_MTS_REGISTRATION_OTHER_HEVC: HEVC / h265 237 * 238 * Well-known registration ids, expressed as native-endian 32bit integers. These 239 * are used in descriptors of type %GST_MTS_DESC_REGISTRATION. Unless specified 240 * otherwise (by use of the "OTHER" prefix), they are all registered by the 241 * [SMPTE Registration Authority](https://smpte-ra.org/) or specified in 242 * "official" documentation for the given format. 243 * 244 * Since: 1.20 245 */ 246 247 /** 248 * REG_TO_UINT32: (skip) (attributes doc.skip=true) 249 */ 250 #define REG_TO_UINT32(a,b,c,d)((a) << 24 | (b) << 16 | (c) << 8 | (d)) 251 252 typedef enum { 253 GST_MTS_REGISTRATION_0 = 0, 254 255 /* SMPTE-RA registered */ 256 GST_MTS_REGISTRATION_AC_3 = REG_TO_UINT32 ('A', 'C', '-', '3'), 257 GST_MTS_REGISTRATION_CUEI = REG_TO_UINT32 ('C', 'U', 'E', 'I'), 258 GST_MTS_REGISTRATION_drac = REG_TO_UINT32 ('d', 'r', 'a', 'c'), 259 GST_MTS_REGISTRATION_DTS1 = REG_TO_UINT32 ('D', 'T', 'S', '1'), 260 GST_MTS_REGISTRATION_DTS2 = REG_TO_UINT32 ('D', 'T', 'S', '2'), 261 GST_MTS_REGISTRATION_DTS3 = REG_TO_UINT32 ('D', 'T', 'S', '3'), 262 GST_MTS_REGISTRATION_BSSD = REG_TO_UINT32 ('B', 'S', 'S', 'D'), 263 GST_MTS_REGISTRATION_EAC3 = REG_TO_UINT32 ('E', 'A', 'C', '3'), 264 GST_MTS_REGISTRATION_ETV1 = REG_TO_UINT32 ('E', 'T', 'V', '1'), 265 GST_MTS_REGISTRATION_GA94 = REG_TO_UINT32 ('G', 'A', '9', '4'), 266 GST_MTS_REGISTRATION_HDMV = REG_TO_UINT32 ('H', 'D', 'M', 'V'), 267 GST_MTS_REGISTRATION_KLVA = REG_TO_UINT32 ('K', 'L', 'V', 'A'), 268 GST_MTS_REGISTRATION_OPUS = REG_TO_UINT32 ('O', 'P', 'U', 'S'), 269 GST_MTS_REGISTRATION_TSHV = REG_TO_UINT32 ('T', 'S', 'H', 'V'), 270 GST_MTS_REGISTRATION_VC_1 = REG_TO_UINT32 ('V', 'C', '-', '1'), 271 272 /* Self-registered by formats, but not in SMPTE-RA registry */ 273 GST_MTS_REGISTRATION_AC_4 = REG_TO_UINT32 ('A', 'C', '-', '4'), 274 275 /* Found elsewhere */ 276 GST_MTS_REGISTRATION_OTHER_HEVC = REG_TO_UINT32 ('H', 'E', 'V', 'C') 277 } GstMpegtsRegistrationId; 278 279 /* GST_MTS_DESC_REGISTRATION (0x05) */ 280 281 GST_MPEGTS_API 282 GstMpegtsDescriptor *gst_mpegts_descriptor_from_registration ( 283 const gchar *format_identifier, 284 guint8 *additional_info, gsize additional_info_length); 285 286 GST_MPEGTS_API 287 gboolean gst_mpegts_descriptor_parse_registration(GstMpegtsDescriptor *descriptor, 288 guint32 *registration_id, 289 guint8 **additional_info, 290 gsize *additional_info_length); 291 292 /* GST_MTS_DESC_CA (0x09) */ 293 294 GST_MPEGTS_API 295 gboolean gst_mpegts_descriptor_parse_ca (GstMpegtsDescriptor *descriptor, 296 guint16 *ca_system_id, 297 guint16 *ca_pid, 298 const guint8 **private_data, 299 gsize *private_data_size); 300 301 /* GST_MTS_DESC_ISO_639_LANGUAGE (0x0A) */ 302 /** 303 * GstMpegtsISO639AudioType: 304 * 305 * Type of audio streams 306 * 307 * Defined in ITU H.222.0 Table 2-60 308 */ 309 typedef enum { 310 GST_MPEGTS_AUDIO_TYPE_UNDEFINED = 0, 311 GST_MPEGTS_AUDIO_TYPE_CLEAN_EFFECTS, 312 GST_MPEGTS_AUDIO_TYPE_HEARING_IMPAIRED, 313 GST_MPEGTS_AUDIO_TYPE_VISUAL_IMPAIRED_COMMENTARY 314 } GstMpegtsIso639AudioType; 315 316 typedef struct _GstMpegtsISO639LanguageDescriptor GstMpegtsISO639LanguageDescriptor; 317 struct _GstMpegtsISO639LanguageDescriptor 318 { 319 guint nb_language; 320 gchar *language[64]; 321 GstMpegtsIso639AudioType audio_type[64]; 322 }; 323 324 #define GST_TYPE_MPEGTS_ISO_639_LANGUAGE (gst_mpegts_iso_639_language_get_type ()) 325 GST_MPEGTS_API 326 GType gst_mpegts_iso_639_language_get_type (void); 327 328 GST_MPEGTS_API 329 void gst_mpegts_iso_639_language_descriptor_free (GstMpegtsISO639LanguageDescriptor * desc); 330 331 GST_MPEGTS_API 332 gboolean gst_mpegts_descriptor_parse_iso_639_language (const GstMpegtsDescriptor *descriptor, 333 GstMpegtsISO639LanguageDescriptor **res); 334 335 GST_MPEGTS_API 336 gboolean gst_mpegts_descriptor_parse_iso_639_language_idx (const GstMpegtsDescriptor *descriptor, 337 guint idx, gchar **lang, 338 GstMpegtsIso639AudioType *audio_type); 339 340 GST_MPEGTS_API 341 guint gst_mpegts_descriptor_parse_iso_639_language_nb (const GstMpegtsDescriptor *descriptor); 342 343 GST_MPEGTS_API 344 GstMpegtsDescriptor * gst_mpegts_descriptor_from_iso_639_language (const gchar * language); 345 346 347 348 /* GST_MTS_DESC_DTG_LOGICAL_CHANNEL (0x83) */ 349 typedef struct _GstMpegtsLogicalChannelDescriptor GstMpegtsLogicalChannelDescriptor; 350 typedef struct _GstMpegtsLogicalChannel GstMpegtsLogicalChannel; 351 352 struct _GstMpegtsLogicalChannel 353 { 354 guint16 service_id; 355 gboolean visible_service; 356 guint16 logical_channel_number; 357 }; 358 359 struct _GstMpegtsLogicalChannelDescriptor 360 { 361 guint nb_channels; 362 GstMpegtsLogicalChannel channels[64]; 363 }; 364 365 #define GST_TYPE_MPEGTS_LOGICAL_CHANNEL_DESCRIPTOR (gst_mpegts_logical_channel_descriptor_get_type()) 366 367 GST_MPEGTS_API 368 GType gst_mpegts_logical_channel_descriptor_get_type(void); 369 370 #define GST_TYPE_MPEGTS_LOGICAL_CHANNEL (gst_mpegts_logical_channel_get_type()) 371 372 GST_MPEGTS_API 373 GType gst_mpegts_logical_channel_get_type(void); 374 375 /* FIXME : Maybe make two methods. One for getting the number of channels, 376 * and the other for getting the content for one channel ? */ 377 GST_MPEGTS_API 378 gboolean 379 gst_mpegts_descriptor_parse_logical_channel (const GstMpegtsDescriptor *descriptor, 380 GstMpegtsLogicalChannelDescriptor *res); 381 382 GST_MPEGTS_API 383 GstMpegtsDescriptor * 384 gst_mpegts_descriptor_from_custom (guint8 tag, const guint8 *data, gsize length); 385 386 387 GST_MPEGTS_API 388 GstMpegtsDescriptor * 389 gst_mpegts_descriptor_from_custom_with_extension (guint8 tag, guint8 tag_extension, const guint8 *data, gsize length); 390 391 G_END_DECLS 392 393 #endif /* GST_MPEGTS_DESCRIPTOR_H */ 394