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394 lines
14 KiB
C
394 lines
14 KiB
C
/*
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* gstmpegtsdescriptor.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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* Some parts of this code come from the Fluendo MPEG Demuxer plugin.
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*
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* The Initial Developer of the Original Code is Fluendo, S.L.
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* Portions created by Fluendo, S.L. are Copyright (C) 2005
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* Fluendo, S.L. All Rights Reserved.
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*
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* Contributor(s): Wim Taymans <wim@fluendo.com>
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*/
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#ifndef GST_MPEGTS_DESCRIPTOR_H
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#define GST_MPEGTS_DESCRIPTOR_H
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#include <gst/gst.h>
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#include <gst/mpegts/mpegts-prelude.h>
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G_BEGIN_DECLS
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/*
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* descriptor_tag TS PS Identification
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* 0 n/a n/a Reserved
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* 1 n/a n/a Reserved
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* 2 X X video_stream_descriptor
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* 3 X X audio_stream_descriptor
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* 4 X X hierarchy_descriptor
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* 5 X X registration_descriptor
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* 6 X X data_stream_alignment_descriptor
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* 7 X X target_background_grid_descriptor
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* 8 X X video_window_descriptor
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* 9 X X CA_descriptor
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* 10 X X ISO_639_language_descriptor
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* 11 X X system_clock_descriptor
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* 12 X X multiplex_buffer_utilization_descriptor
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* 13 X X copyright_descriptor
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* 14 X maximum bitrate descriptor
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* 15 X X private data indicator descriptor
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* 16 X X smoothing buffer descriptor
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* 17 X STD_descriptor
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* 18 X X IBP descriptor
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* 19-63 n/a n/a ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved
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* 64-255 n/a n/a User Private
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*/
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/**
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* GstMpegtsDescriptorType:
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*
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* The type of #GstMpegtsDescriptor
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*
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* These values correspond to the registered descriptor type from
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* the base MPEG-TS specifications (ITU H.222.0 | ISO/IEC 13818-1).
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*
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* Consult the relevant specifications for more details.
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*/
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typedef enum {
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/* 0-18 ISO/IEC 13818-1 (H222.0 06/2012) */
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GST_MTS_DESC_RESERVED_00 = 0x00,
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GST_MTS_DESC_RESERVED_01 = 0x01,
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GST_MTS_DESC_VIDEO_STREAM = 0x02,
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GST_MTS_DESC_AUDIO_STREAM = 0x03,
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GST_MTS_DESC_HIERARCHY = 0x04,
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GST_MTS_DESC_REGISTRATION = 0x05,
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GST_MTS_DESC_DATA_STREAM_ALIGNMENT = 0x06,
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GST_MTS_DESC_TARGET_BACKGROUND_GRID = 0x07,
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GST_MTS_DESC_VIDEO_WINDOW = 0x08,
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GST_MTS_DESC_CA = 0x09,
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GST_MTS_DESC_ISO_639_LANGUAGE = 0x0A,
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GST_MTS_DESC_SYSTEM_CLOCK = 0x0B,
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GST_MTS_DESC_MULTIPLEX_BUFFER_UTILISATION = 0x0C,
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GST_MTS_DESC_COPYRIGHT = 0x0D,
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GST_MTS_DESC_MAXIMUM_BITRATE = 0x0E,
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GST_MTS_DESC_PRIVATE_DATA_INDICATOR = 0x0F,
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GST_MTS_DESC_SMOOTHING_BUFFER = 0x10,
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GST_MTS_DESC_STD = 0x11,
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GST_MTS_DESC_IBP = 0x12,
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/* 19-26 Defined in ISO/IEC 13818-6 (Extensions for DSM-CC) */
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GST_MTS_DESC_DSMCC_CAROUSEL_IDENTIFIER = 0x13,
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GST_MTS_DESC_DSMCC_ASSOCIATION_TAG = 0x14,
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GST_MTS_DESC_DSMCC_DEFERRED_ASSOCIATION_TAG = 0x15,
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/* 0x16 is reserved (so far) */
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GST_MTS_DESC_DSMCC_NPT_REFERENCE = 0x17,
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GST_MTS_DESC_DSMCC_NPT_ENDPOINT = 0x18,
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GST_MTS_DESC_DSMCC_STREAM_MODE = 0x19,
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GST_MTS_DESC_DSMCC_STREAM_EVENT = 0x1A,
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/* 27-54 Later additions to ISO/IEC 13818-1 (H222.0 06/2012) */
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GST_MTS_DESC_MPEG4_VIDEO = 0x1B,
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GST_MTS_DESC_MPEG4_AUDIO = 0x1C,
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GST_MTS_DESC_IOD = 0x1D,
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GST_MTS_DESC_SL = 0x1E,
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GST_MTS_DESC_FMC = 0x1F,
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GST_MTS_DESC_EXTERNAL_ES_ID = 0x20,
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GST_MTS_DESC_MUX_CODE = 0x21,
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GST_MTS_DESC_FMX_BUFFER_SIZE = 0x22,
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GST_MTS_DESC_MULTIPLEX_BUFFER = 0x23,
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GST_MTS_DESC_CONTENT_LABELING = 0x24,
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GST_MTS_DESC_METADATA_POINTER = 0x25,
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GST_MTS_DESC_METADATA = 0x26,
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GST_MTS_DESC_METADATA_STD = 0x27,
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GST_MTS_DESC_AVC_VIDEO = 0x28,
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/* defined in ISO/IEC 13818-11, MPEG-2 IPMP */
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GST_MTS_DESC_IPMP = 0x29,
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GST_MTS_DESC_AVC_TIMING_AND_HRD = 0x2A,
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GST_MTS_DESC_MPEG2_AAC_AUDIO = 0x2B,
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GST_MTS_DESC_FLEX_MUX_TIMING = 0x2C,
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GST_MTS_DESC_MPEG4_TEXT = 0x2D,
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GST_MTS_DESC_MPEG4_AUDIO_EXTENSION = 0x2E,
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GST_MTS_DESC_AUXILIARY_VIDEO_STREAM = 0x2F,
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GST_MTS_DESC_SVC_EXTENSION = 0x30,
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GST_MTS_DESC_MVC_EXTENSION = 0x31,
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GST_MTS_DESC_J2K_VIDEO = 0x32,
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GST_MTS_DESC_MVC_OPERATION_POINT = 0x33,
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GST_MTS_DESC_MPEG2_STEREOSCOPIC_VIDEO_FORMAT = 0x34,
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GST_MTS_DESC_STEREOSCOPIC_PROGRAM_INFO = 0x35,
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GST_MTS_DESC_STEREOSCOPIC_VIDEO_INFO = 0x36,
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/* 55-63 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved */
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} GstMpegtsDescriptorType;
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/**
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* GstMpegtsMiscDescriptorType:
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*
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* The type of #GstMpegtsDescriptor
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*
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* These values correspond to miscellaneous descriptor types that are
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* not yet identified from known specifications.
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*/
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typedef enum {
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/* 0x80 - 0xFE are user defined */
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GST_MTS_DESC_DTG_LOGICAL_CHANNEL = 0x83, /* from DTG D-Book, only present in NIT */
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} GstMpegtsMiscDescriptorType;
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/**
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* GstMpegtsSCTEDescriptorType:
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*
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* These values correspond to the ones defined by SCTE (amongst other in ANSI/SCTE 57)
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*
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* Since: 1.20
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*/
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typedef enum {
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GST_MTS_DESC_SCTE_STUFFING = 0x80,
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GST_MTS_DESC_SCTE_AC3 = 0x81,
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GST_MTS_DESC_SCTE_FRAME_RATE = 0x82,
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GST_MTS_DESC_SCTE_EXTENDED_VIDEO = 0x83,
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GST_MTS_DESC_SCTE_COMPONENT_NAME = 0x84,
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GST_MTS_DESC_SCTE_FREQUENCY_SPEC = 0x90,
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GST_MTS_DESC_SCTE_MODULATION_PARAMS = 0x91,
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GST_MTS_DESC_SCTE_TRANSPORT_STREAM_ID = 0x92
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} GstMpegtsSCTEDescriptorType;
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typedef struct _GstMpegtsDescriptor GstMpegtsDescriptor;
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#define GST_TYPE_MPEGTS_DESCRIPTOR (gst_mpegts_descriptor_get_type())
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GST_MPEGTS_API
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GType gst_mpegts_descriptor_get_type (void);
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/**
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* GstMpegtsDescriptor:
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* @tag: the type of descriptor
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* @tag_extension: the extended type (if @descriptor_tag is 0x7f)
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* @length: the length of the descriptor content (excluding tag/length field)
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* @data: the full descriptor data (including tag, extension, length). The first
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* two bytes are the @tag and @length.
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*
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* Mpeg-TS descriptor (ISO/IEC 13818-1).
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*/
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struct _GstMpegtsDescriptor
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{
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guint8 tag;
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guint8 tag_extension;
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guint8 length;
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guint8 *data;
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/*< private >*/
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/* Padding for future extension */
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gpointer _gst_reserved[GST_PADDING];
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};
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GST_MPEGTS_API
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void gst_mpegts_descriptor_free (GstMpegtsDescriptor *desc);
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GST_MPEGTS_API
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GPtrArray *gst_mpegts_parse_descriptors (guint8 * buffer, gsize buf_len);
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GST_MPEGTS_API
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const GstMpegtsDescriptor * gst_mpegts_find_descriptor (GPtrArray *descriptors,
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guint8 tag);
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GST_MPEGTS_API
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const GstMpegtsDescriptor * gst_mpegts_find_descriptor_with_extension (GPtrArray *descriptors,
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guint8 tag, guint8 tag_extension);
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/**
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* GstMpegtsRegistrationId:
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* @GST_MTS_REGISTRATION_0: Undefined registration id
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* @GST_MTS_REGISTRATION_AC_3: Audio AC-3, ATSC A/52
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* @GST_MTS_REGISTRATION_AC_4: Audio AC-4, ETSI 103 190-2
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* @GST_MTS_REGISTRATION_CUEI: SCTE 35, "Digital Program Insertion Cueing Message"
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* @GST_MTS_REGISTRATION_drac: Dirac Video codec
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* @GST_MTS_REGISTRATION_DTS1: DTS Audio
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* @GST_MTS_REGISTRATION_DTS2: DTS Audio
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* @GST_MTS_REGISTRATION_DTS3: DTS Audio
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* @GST_MTS_REGISTRATION_EAC3: Enhanced AC-3 (i.e. EAC3)
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* @GST_MTS_REGISTRATION_ETV1: Cablelabs ETV
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* @GST_MTS_REGISTRATION_BSSD: SMPTE 302M, Mapping of AES3 Data in mpeg-ts
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* @GST_MTS_REGISTRATION_GA94: ATSC A/53 compliant stream (i.e. ATSC)
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* @GST_MTS_REGISTRATION_HDMV: Blu-ray, "System Description Blu-ray Disc
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* Read-Only Format part 3 Audio Visual Basic Specifications"
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* @GST_MTS_REGISTRATION_KLVA: SMPTE RP217 : Non-synchronized Mapping of KLV
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* Packets in mpeg-ts
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* @GST_MTS_REGISTRATION_OPUS: Opus Audio
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* @GST_MTS_REGISTRATION_TSHV: HDV (Sony)
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* @GST_MTS_REGISTRATION_VC_1: Video VC-1, SMPTE RP227 "VC-1 Bitstream Transport Encodings"
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* @GST_MTS_REGISTRATION_OTHER_HEVC: HEVC / h265
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*
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* Well-known registration ids, expressed as native-endian 32bit integers. These
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* are used in descriptors of type %GST_MTS_DESC_REGISTRATION. Unless specified
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* otherwise (by use of the "OTHER" prefix), they are all registered by the
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* [SMPTE Registration Authority](https://smpte-ra.org/) or specified in
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* "official" documentation for the given format.
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*
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* Since: 1.20
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*/
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/**
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* REG_TO_UINT32: (skip) (attributes doc.skip=true)
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*/
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#define REG_TO_UINT32(a,b,c,d)((a) << 24 | (b) << 16 | (c) << 8 | (d))
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typedef enum {
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GST_MTS_REGISTRATION_0 = 0,
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/* SMPTE-RA registered */
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GST_MTS_REGISTRATION_AC_3 = REG_TO_UINT32 ('A', 'C', '-', '3'),
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GST_MTS_REGISTRATION_CUEI = REG_TO_UINT32 ('C', 'U', 'E', 'I'),
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GST_MTS_REGISTRATION_drac = REG_TO_UINT32 ('d', 'r', 'a', 'c'),
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GST_MTS_REGISTRATION_DTS1 = REG_TO_UINT32 ('D', 'T', 'S', '1'),
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GST_MTS_REGISTRATION_DTS2 = REG_TO_UINT32 ('D', 'T', 'S', '2'),
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GST_MTS_REGISTRATION_DTS3 = REG_TO_UINT32 ('D', 'T', 'S', '3'),
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GST_MTS_REGISTRATION_BSSD = REG_TO_UINT32 ('B', 'S', 'S', 'D'),
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GST_MTS_REGISTRATION_EAC3 = REG_TO_UINT32 ('E', 'A', 'C', '3'),
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GST_MTS_REGISTRATION_ETV1 = REG_TO_UINT32 ('E', 'T', 'V', '1'),
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GST_MTS_REGISTRATION_GA94 = REG_TO_UINT32 ('G', 'A', '9', '4'),
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GST_MTS_REGISTRATION_HDMV = REG_TO_UINT32 ('H', 'D', 'M', 'V'),
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GST_MTS_REGISTRATION_KLVA = REG_TO_UINT32 ('K', 'L', 'V', 'A'),
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GST_MTS_REGISTRATION_OPUS = REG_TO_UINT32 ('O', 'P', 'U', 'S'),
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GST_MTS_REGISTRATION_TSHV = REG_TO_UINT32 ('T', 'S', 'H', 'V'),
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GST_MTS_REGISTRATION_VC_1 = REG_TO_UINT32 ('V', 'C', '-', '1'),
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/* Self-registered by formats, but not in SMPTE-RA registry */
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GST_MTS_REGISTRATION_AC_4 = REG_TO_UINT32 ('A', 'C', '-', '4'),
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/* Found elsewhere */
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GST_MTS_REGISTRATION_OTHER_HEVC = REG_TO_UINT32 ('H', 'E', 'V', 'C')
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} GstMpegtsRegistrationId;
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/* GST_MTS_DESC_REGISTRATION (0x05) */
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GST_MPEGTS_API
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GstMpegtsDescriptor *gst_mpegts_descriptor_from_registration (
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const gchar *format_identifier,
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guint8 *additional_info, gsize additional_info_length);
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GST_MPEGTS_API
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gboolean gst_mpegts_descriptor_parse_registration(GstMpegtsDescriptor *descriptor,
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guint32 *registration_id,
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guint8 **additional_info,
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gsize *additional_info_length);
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/* GST_MTS_DESC_CA (0x09) */
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GST_MPEGTS_API
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gboolean gst_mpegts_descriptor_parse_ca (GstMpegtsDescriptor *descriptor,
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guint16 *ca_system_id,
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guint16 *ca_pid,
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const guint8 **private_data,
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gsize *private_data_size);
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/* GST_MTS_DESC_ISO_639_LANGUAGE (0x0A) */
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/**
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* GstMpegtsISO639AudioType:
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*
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* Type of audio streams
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*
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* Defined in ITU H.222.0 Table 2-60
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*/
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typedef enum {
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GST_MPEGTS_AUDIO_TYPE_UNDEFINED = 0,
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GST_MPEGTS_AUDIO_TYPE_CLEAN_EFFECTS,
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GST_MPEGTS_AUDIO_TYPE_HEARING_IMPAIRED,
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GST_MPEGTS_AUDIO_TYPE_VISUAL_IMPAIRED_COMMENTARY
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} GstMpegtsIso639AudioType;
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typedef struct _GstMpegtsISO639LanguageDescriptor GstMpegtsISO639LanguageDescriptor;
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struct _GstMpegtsISO639LanguageDescriptor
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{
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guint nb_language;
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gchar *language[64];
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GstMpegtsIso639AudioType audio_type[64];
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};
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#define GST_TYPE_MPEGTS_ISO_639_LANGUAGE (gst_mpegts_iso_639_language_get_type ())
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GST_MPEGTS_API
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GType gst_mpegts_iso_639_language_get_type (void);
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GST_MPEGTS_API
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void gst_mpegts_iso_639_language_descriptor_free (GstMpegtsISO639LanguageDescriptor * desc);
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GST_MPEGTS_API
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gboolean gst_mpegts_descriptor_parse_iso_639_language (const GstMpegtsDescriptor *descriptor,
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GstMpegtsISO639LanguageDescriptor **res);
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GST_MPEGTS_API
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gboolean gst_mpegts_descriptor_parse_iso_639_language_idx (const GstMpegtsDescriptor *descriptor,
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guint idx, gchar **lang,
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GstMpegtsIso639AudioType *audio_type);
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GST_MPEGTS_API
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guint gst_mpegts_descriptor_parse_iso_639_language_nb (const GstMpegtsDescriptor *descriptor);
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GST_MPEGTS_API
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GstMpegtsDescriptor * gst_mpegts_descriptor_from_iso_639_language (const gchar * language);
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/* GST_MTS_DESC_DTG_LOGICAL_CHANNEL (0x83) */
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typedef struct _GstMpegtsLogicalChannelDescriptor GstMpegtsLogicalChannelDescriptor;
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typedef struct _GstMpegtsLogicalChannel GstMpegtsLogicalChannel;
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struct _GstMpegtsLogicalChannel
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{
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guint16 service_id;
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gboolean visible_service;
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guint16 logical_channel_number;
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};
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struct _GstMpegtsLogicalChannelDescriptor
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{
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guint nb_channels;
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GstMpegtsLogicalChannel channels[64];
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};
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#define GST_TYPE_MPEGTS_LOGICAL_CHANNEL_DESCRIPTOR (gst_mpegts_logical_channel_descriptor_get_type())
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GST_MPEGTS_API
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GType gst_mpegts_logical_channel_descriptor_get_type(void);
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#define GST_TYPE_MPEGTS_LOGICAL_CHANNEL (gst_mpegts_logical_channel_get_type())
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GST_MPEGTS_API
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GType gst_mpegts_logical_channel_get_type(void);
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/* FIXME : Maybe make two methods. One for getting the number of channels,
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* and the other for getting the content for one channel ? */
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GST_MPEGTS_API
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gboolean
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gst_mpegts_descriptor_parse_logical_channel (const GstMpegtsDescriptor *descriptor,
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GstMpegtsLogicalChannelDescriptor *res);
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GST_MPEGTS_API
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GstMpegtsDescriptor *
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gst_mpegts_descriptor_from_custom (guint8 tag, const guint8 *data, gsize length);
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GST_MPEGTS_API
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GstMpegtsDescriptor *
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gst_mpegts_descriptor_from_custom_with_extension (guint8 tag, guint8 tag_extension, const guint8 *data, gsize length);
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G_END_DECLS
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#endif /* GST_MPEGTS_DESCRIPTOR_H */
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