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FFmpeg/libavformat/mpegts.h
Marton Balint f5b83d5419 avformat/mpegtsenc: allow any sensible PID for elementary and PMT PIDs 
This sets the range of the first automatically assigned PMT PID or elementary
stream PID parameters to [0x20, 0x1ffa]. You can still assign manually a PID
for a stream using AVStream->id in the wider [0x10, 0x1ffe] range as specified
by ISO13818-1. But since DVB and ATSC both reserves some PIDs, let's not allow
them to be automatically assigned.

Also make sure that assigned PID numbers are valid and fix the error message
for the previous PID collision checks.

Signed-off-by: Marton Balint <cus@passwd.hu>
2019-12-03 11:00:10 +01:00

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/*
* MPEG-2 transport stream defines
* Copyright (c) 2003 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_MPEGTS_H
#define AVFORMAT_MPEGTS_H
#include "avformat.h"
#define TS_FEC_PACKET_SIZE 204
#define TS_DVHS_PACKET_SIZE 192
#define TS_PACKET_SIZE 188
#define TS_MAX_PACKET_SIZE 204
#define NB_PID_MAX 8192
#define USUAL_SECTION_SIZE 1024 /* except EIT which is limited to 4096 */
#define MAX_SECTION_SIZE 4096
/* pids */
#define PAT_PID 0x0000 /* Program Association Table */
#define CAT_PID 0x0001 /* Conditional Access Table */
#define TSDT_PID 0x0002 /* Transport Stream Description Table */
#define IPMP_PID 0x0003
/* PID from 0x0004 to 0x000F are reserved */
#define NIT_PID 0x0010 /* Network Information Table */
#define SDT_PID 0x0011 /* Service Description Table */
#define BAT_PID 0x0011 /* Bouquet Association Table */
#define EIT_PID 0x0012 /* Event Information Table */
#define RST_PID 0x0013 /* Running Status Table */
#define TDT_PID 0x0014 /* Time and Date Table */
#define TOT_PID 0x0014
#define NET_SYNC_PID 0x0015
#define RNT_PID 0x0016 /* RAR Notification Table */
/* PID from 0x0017 to 0x001B are reserved for future use */
/* PID value 0x001C allocated to link-local inband signalling shall not be
* used on any broadcast signals. It shall only be used between devices in a
* controlled environment. */
#define LINK_LOCAL_PID 0x001C
#define MEASUREMENT_PID 0x001D
#define DIT_PID 0x001E /* Discontinuity Information Table */
#define SIT_PID 0x001F /* Selection Information Table */
/* PID from 0x0020 to 0x1FFA may be assigned as needed to PMT, elementary
* streams and other data tables */
#define FIRST_OTHER_PID 0x0020
#define LAST_OTHER_PID 0x1FFA
/* PID 0x1FFB is used by DigiCipher 2/ATSC MGT metadata */
/* PID from 0x1FFC to 0x1FFE may be assigned as needed to PMT, elementary
* streams and other data tables */
#define NULL_PID 0x1FFF /* Null packet (used for fixed bandwidth padding) */
/* table ids */
#define PAT_TID 0x00 /* Program Association section */
#define CAT_TID 0x01 /* Conditional Access section */
#define PMT_TID 0x02 /* Program Map section */
#define TSDT_TID 0x03 /* Transport Stream Description section */
/* TID from 0x04 to 0x3F are reserved */
#define M4OD_TID 0x05
#define NIT_TID 0x40 /* Network Information section - actual network */
#define ONIT_TID 0x41 /* Network Information section - other network */
#define SDT_TID 0x42 /* Service Description section - actual TS */
/* TID from 0x43 to 0x45 are reserved for future use */
#define OSDT_TID 0x46 /* Service Descrition section - other TS */
/* TID from 0x47 to 0x49 are reserved for future use */
#define BAT_TID 0x4A /* Bouquet Association section */
#define UNT_TID 0x4B /* Update Notification Table section */
#define DFI_TID 0x4C /* Downloadable Font Info section */
/* TID 0x4D is reserved for future use */
#define EIT_TID 0x4E /* Event Information section - actual TS */
#define OEIT_TID 0x4F /* Event Information section - other TS */
#define EITS_START_TID 0x50 /* Event Information section schedule - actual TS */
#define EITS_END_TID 0x5F /* Event Information section schedule - actual TS */
#define OEITS_START_TID 0x60 /* Event Information section schedule - other TS */
#define OEITS_END_TID 0x6F /* Event Information section schedule - other TS */
#define TDT_TID 0x70 /* Time Date section */
#define RST_TID 0x71 /* Running Status section */
#define ST_TID 0x72 /* Stuffing section */
#define TOT_TID 0x73 /* Time Offset section */
#define AIT_TID 0x74 /* Application Inforamtion section */
#define CT_TID 0x75 /* Container section */
#define RCT_TID 0x76 /* Related Content section */
#define CIT_TID 0x77 /* Content Identifier section */
#define MPE_FEC_TID 0x78 /* MPE-FEC section */
#define RPNT_TID 0x79 /* Resolution Provider Notification section */
#define MPE_IFEC_TID 0x7A /* MPE-IFEC section */
#define PROTMT_TID 0x7B /* Protection Message section */
/* TID from 0x7C to 0x7D are reserved for future use */
#define DIT_TID 0x7E /* Discontinuity Information section */
#define SIT_TID 0x7F /* Selection Information section */
/* TID from 0x80 to 0xFE are user defined */
/* TID 0xFF is reserved */
#define STREAM_TYPE_VIDEO_MPEG1 0x01
#define STREAM_TYPE_VIDEO_MPEG2 0x02
#define STREAM_TYPE_AUDIO_MPEG1 0x03
#define STREAM_TYPE_AUDIO_MPEG2 0x04
#define STREAM_TYPE_PRIVATE_SECTION 0x05
#define STREAM_TYPE_PRIVATE_DATA 0x06
#define STREAM_TYPE_AUDIO_AAC 0x0f
#define STREAM_TYPE_AUDIO_AAC_LATM 0x11
#define STREAM_TYPE_VIDEO_MPEG4 0x10
#define STREAM_TYPE_METADATA 0x15
#define STREAM_TYPE_VIDEO_H264 0x1b
#define STREAM_TYPE_VIDEO_HEVC 0x24
#define STREAM_TYPE_VIDEO_CAVS 0x42
#define STREAM_TYPE_VIDEO_VC1 0xea
#define STREAM_TYPE_VIDEO_DIRAC 0xd1
#define STREAM_TYPE_AUDIO_AC3 0x81
#define STREAM_TYPE_AUDIO_DTS 0x82
#define STREAM_TYPE_AUDIO_TRUEHD 0x83
#define STREAM_TYPE_AUDIO_EAC3 0x87
typedef struct MpegTSContext MpegTSContext;
MpegTSContext *avpriv_mpegts_parse_open(AVFormatContext *s);
int avpriv_mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt,
const uint8_t *buf, int len);
void avpriv_mpegts_parse_close(MpegTSContext *ts);
typedef struct SLConfigDescr {
int use_au_start;
int use_au_end;
int use_rand_acc_pt;
int use_padding;
int use_timestamps;
int use_idle;
int timestamp_res;
int timestamp_len;
int ocr_len;
int au_len;
int inst_bitrate_len;
int degr_prior_len;
int au_seq_num_len;
int packet_seq_num_len;
} SLConfigDescr;
typedef struct Mp4Descr {
int es_id;
int dec_config_descr_len;
uint8_t *dec_config_descr;
SLConfigDescr sl;
} Mp4Descr;
/**
* Parse an MPEG-2 descriptor
* @param[in] fc Format context (used for logging only)
* @param st Stream
* @param stream_type STREAM_TYPE_xxx
* @param pp Descriptor buffer pointer
* @param desc_list_end End of buffer
* @return <0 to stop processing
*/
int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type,
const uint8_t **pp, const uint8_t *desc_list_end,
Mp4Descr *mp4_descr, int mp4_descr_count, int pid,
MpegTSContext *ts);
/**
* Check presence of H264 startcode
* @return <0 to stop processing
*/
int ff_check_h264_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt);
#endif /* AVFORMAT_MPEGTS_H */
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