kopia lustrzana https://github.com/F5OEO/tstools
219 wiersze
9.4 KiB
C
219 wiersze
9.4 KiB
C
/*
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* Datastructures and definitions useful for working with H.222 data,
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* whether it be Transport Stream or Program Stream
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the MPEG TS, PS and ES tools.
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*
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* The Initial Developer of the Original Code is Amino Communications Ltd.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Amino Communications Ltd, Swavesey, Cambridge UK
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*
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* ***** END LICENSE BLOCK *****
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*/
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#ifndef _h222_defns
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#define _h222_defns
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// Include our function definition(s)
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// -- this is actually just the function for returning a string
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// representing a stream type (according to the following table),
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// which *used* to be a macro, defined in this header file.
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#include "h222_fns.h"
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// ------------------------------------------------------------
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// H.222.0 Table 2-29: Stream type assignments, as amended by
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// H.222.0 (2000) Amendment 3
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//
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// Value Description
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// ===== ============================
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// 00 ITU-T | ISO/IEC Reserved
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// 01 ISO/IEC 11172-2 Video
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// 02 ITU-T Rec. H.262 | ISO/IEC 13818-2 Video or ISO/IEC 11172-2
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// constrained parameter video stream
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// 03 ISO/IEC 11172-3 Audio
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// 04 ISO/IEC 13818-3 Audio
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// 05 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 private_sections
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// 06 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 PES packets containing
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// private data -- traditionally DVB Dolby (AC-3)
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// 07 ISO/IEC 13522 MHEG
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// 08 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Annex A DSM CC
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// 09 ITU-T Rec. H.222.1
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// 0A ISO/IEC 13818-6 type A
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// 0B ISO/IEC 13818-6 type B
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// 0C ISO/IEC 13818-6 type C
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// 0D ISO/IEC 13818-6 type D
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// 0E ITU-T Rec. H.222.0 | ISO/IEC 13818-1 auxiliary
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// 0F ISO/IEC 13818-7 Audio with ADTS transport syntax
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// 10 ISO/IEC 14496-2 Visual
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// 11 ISO/IEC 14496-3 Audio with the LATM transport syntax as defined
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// in ISO/IEC 14496-3 / AMD 1
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// 12 ISO/IEC 14496-1 SL-packetized stream or FlexMux stream carried
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// in PES packets
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// 13 ISO/IEC 14496-1 SL-packetized stream or FlexMux stream carried
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// in ISO/IEC14496_sections.
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// 14 ISO/IEC 13818-6 Synchronized Download Protocol
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// 15 Metadata carried in PES packets
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// 16 Metadata carried in metadata_sections
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// 17 Metadata carried in ISO/IEC 13818-6 Data Carousel
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// 18 Metadata carried in ISO/IEC 13818-6 Object Carousel
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// 19 Metadata carried in ISO/IEC 13818-6 Synchronized Download Protocol
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// 1A IPMP stream (defined in ISO/IEC 13818-11, MPEG-2 IPMP)
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// 1B AVC video stream as defined in ITU-T Rec. H.264 | ISO/IEC 14496-10
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// Video
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// 1C-7E ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Reserved
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// 7F IPMP stream
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// 80-FF User Private
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// 81 Traditionally ATSC Dolby (AC-3)
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#define MPEG1_VIDEO_STREAM_TYPE 0x01
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#define MPEG2_VIDEO_STREAM_TYPE 0x02 // H.262
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#define AVC_VIDEO_STREAM_TYPE 0x1B // MPEG-4 part10 - H.264
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#define AVS_VIDEO_STREAM_TYPE 0x42 // AVS -- Chinese standard
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#define DVB_DOLBY_AUDIO_STREAM_TYPE 0x06 // [1]
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#define ATSC_DOLBY_AUDIO_STREAM_TYPE 0x81 // [1]
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#define MPEG2_AUDIO_STREAM_TYPE 0x04
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#define MPEG1_AUDIO_STREAM_TYPE 0x03
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#define ADTS_AUDIO_STREAM_TYPE 0x0F // AAC ADTS
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#define MPEG4_PART2_VIDEO_STREAM_TYPE 0x10
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#define LATM_AUDIO_STREAM_TYPE 0x11 // How much do we support this?
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#define H265_VIDEO_STREAM_TYPE 0x24
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#define DOLBY_DVB_STREAM_TYPE 0x06 // [1]
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#define DOLBY_ATSC_STREAM_TYPE 0x81 // [1]
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// [1] In DVB (the European transmission standard) Dolby (AC-3) audio is
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// carried in stream type 0x06, but in ATSC (the USA standard), stream
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// type 0x81 is used. Note that both of these are essentially just saying
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// that the data is a private stream, so technically one needs to set
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// descriptors in the PMT as well to say we really mean Dolby (AC-3)
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// Also, in DVB, other types of stream can be in 0x06.
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#define IS_VIDEO_STREAM_TYPE(s) ((s)==MPEG1_VIDEO_STREAM_TYPE || \
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(s)==MPEG2_VIDEO_STREAM_TYPE || \
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(s)==AVC_VIDEO_STREAM_TYPE || \
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(s)==H265_VIDEO_STREAM_TYPE || \
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(s)==AVS_VIDEO_STREAM_TYPE || \
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(s)==MPEG4_PART2_VIDEO_STREAM_TYPE)
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// Although I include Dolby in the "standard" audio types, beware that the
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// stream type usage is not specified by H.222 itself - it is "convention"
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// (albeit a standardised convention) how private streams are used to transmit
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// Dolby. There is a case to be made that, at any one time, we should not
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// recognise *both* potential Dolby stream types, but just one or the other
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// (see [1] above) according to the standard the user is expecting. On the
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// other hand, practice seems to be to use the stream types only in the
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// expected manner.
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#define IS_DOLBY_STREAM_TYPE(s) ((s)==DOLBY_DVB_STREAM_TYPE || \
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(s)==DOLBY_ATSC_STREAM_TYPE)
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#define IS_AUDIO_STREAM_TYPE(s) ((s)==MPEG1_AUDIO_STREAM_TYPE || \
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(s)==MPEG2_AUDIO_STREAM_TYPE || \
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(s)==ADTS_AUDIO_STREAM_TYPE || \
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(s)==LATM_AUDIO_STREAM_TYPE || \
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IS_DOLBY_STREAM_TYPE((s)))
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// ------------------------------------------------------------
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// Stream ids, as used in PES headers
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// H.222.0 Table 2-18: Stream_id assignments, as amended by
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// H.222.0 (2000) Amendment 3
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//
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// Note Hex stream_id stream coding
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// ==== === ========= =============
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// 1 BC 1011 1100 program_stream_map
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// 2 BD 1011 1101 private_stream_1
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// BE 1011 1110 padding_stream
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// 3 BF 1011 1111 private_stream_2
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// C0-DF 110x xxxx ISO/IEC 13818-3 or ISO/IEC 11172-3 or
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// ISO/IEC 13818-7 or ISO/IEC 14496-3 audio stream
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// number x xxxx
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// Ex 1110 xxxx ITU-T Rec. H.262 | ISO/IEC 13818-2, ISO/IEC 11172-2,
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// ISO/IEC 14496-2 or ITU-T Rec. H.264 | ISO/IEC
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// 14496-10 video stream number xxxx
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// 3 F0 1111 0000 ECM_stream
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// F1 1111 0001 EMM_stream
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// 5 F2 1111 0010 ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Annex A or
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// ISO/IEC 13818-6_DSMCC_stream
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// 2 F3 1111 0011 ISO/IEC_13522_stream
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// 6 F4 1111 0100 ITU-T Rec. H.222.1 type A
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// 6 F5 1111 0101 ITU-T Rec. H.222.1 type B
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// 6 F6 1111 0110 ITU-T Rec. H.222.1 type C
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// 6 F7 1111 0111 ITU-T Rec. H.222.1 type D
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// 6 F8 1111 1000 ITU-T Rec. H.222.1 type E
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// 7 F9 1111 1001 ancillary_stream
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// FA 1111 1010 ISO/IEC14496-1_SL-packetized_stream
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// FB 1111 1011 ISO/IEC14496-1_FlexMux_stream
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// FC 1111 1100 descriptive data stream
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// FD 1111 1101 reserved data stream
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// FE 1111 1110 reserved data stream
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// 4 FF 1111 1111 program_stream_directory
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//
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// The notation x means that the values '0' or '1' are both permitted and
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// results in the same stream type. The stream number is given by the values
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// taken by the x's.
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//
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// NOTES
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// 1 PES packets of type program_stream_map have unique syntax specified
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// in 2.5.4.1.
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// 2 PES packets of type private_stream_1 and ISO/IEC_13552_stream follow
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// the same PES packet syntax as those for ITU-T Rec. H.262 | ISO/IEC
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// 13818-2 video and ISO/IEC 13818-3 audio streams.
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// 3 PES packets of type private_stream_2, ECM_stream and EMM_stream
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// are similar to private_stream_1 except no syntax is specified after
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// PES_packet_length field.
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// 4 PES packets of type program_stream_directory have a unique syntax
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// specified in 2.5.5.
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// 5 PES packets of type DSM-CC_stream have a unique syntax specified
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// in ISO/IEC 13818- 6.
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// 6 This stream_id is associated with stream_type 0x09 in Table 2-29.
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// 7 This stream_id is only used in PES packets, which carry data from
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// a Program Stream or an ISO/IEC 11172-1 System Stream, in a Transport
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// Stream (refer to 2.4.3.7).
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#define PADDING_STREAM_ID 0xBE
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#define PRIVATE1_AUDIO_STREAM_ID 0xBD
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#define PRIVATE2_AUDIO_STREAM_ID 0xBF
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#define DEFAULT_VIDEO_STREAM_ID 0xE0 // i.e., stream 0
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#define DEFAULT_AUDIO_STREAM_ID 0xC0 // i.e., stream 0
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#define IS_AUDIO_STREAM_ID(id) ((id)==0xBD || ((id) >= 0xC0 && (id) <= 0xDF))
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#define IS_VIDEO_STREAM_ID(id) ((id) >= 0xE0 && (id) <= 0xEF)
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// ------------------------------------------------------------
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// Timing info (used in reporting on packets). Initialise to all zeroes...
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struct timing
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{
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uint64_t first_pcr;
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uint64_t last_pcr;
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int first_pcr_packet;
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int last_pcr_packet;
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int had_first_pcr; // FALSE until we've started
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};
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typedef struct timing *timing_p;
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#endif // _h222_defns
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// Local Variables:
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// tab-width: 8
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// indent-tabs-mode: nil
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// c-basic-offset: 2
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// End:
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// vim: set tabstop=8 shiftwidth=2 expandtab:
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