| 1 | /* |
| 2 | * MPEG2 transport stream defines |
| 3 | * Copyright (c) 2003 Fabrice Bellard |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | #ifndef AVFORMAT_MPEGTS_H |
| 23 | #define AVFORMAT_MPEGTS_H |
| 24 | |
| 25 | #include "avformat.h" |
| 26 | |
| 27 | #define TS_FEC_PACKET_SIZE 204 |
| 28 | #define TS_DVHS_PACKET_SIZE 192 |
| 29 | #define TS_PACKET_SIZE 188 |
| 30 | #define TS_MAX_PACKET_SIZE 204 |
| 31 | |
| 32 | #define NB_PID_MAX 8192 |
| 33 | #define MAX_SECTION_SIZE 4096 |
| 34 | |
| 35 | /* pids */ |
| 36 | #define PAT_PID 0x0000 |
| 37 | #define SDT_PID 0x0011 |
| 38 | |
| 39 | /* table ids */ |
| 40 | #define PAT_TID 0x00 |
| 41 | #define PMT_TID 0x02 |
| 42 | #define M4OD_TID 0x05 |
| 43 | #define SDT_TID 0x42 |
| 44 | |
| 45 | #define STREAM_TYPE_VIDEO_MPEG1 0x01 |
| 46 | #define STREAM_TYPE_VIDEO_MPEG2 0x02 |
| 47 | #define STREAM_TYPE_AUDIO_MPEG1 0x03 |
| 48 | #define STREAM_TYPE_AUDIO_MPEG2 0x04 |
| 49 | #define STREAM_TYPE_PRIVATE_SECTION 0x05 |
| 50 | #define STREAM_TYPE_PRIVATE_DATA 0x06 |
| 51 | #define STREAM_TYPE_AUDIO_AAC 0x0f |
| 52 | #define STREAM_TYPE_AUDIO_AAC_LATM 0x11 |
| 53 | #define STREAM_TYPE_VIDEO_MPEG4 0x10 |
| 54 | #define STREAM_TYPE_VIDEO_H264 0x1b |
| 55 | #define STREAM_TYPE_VIDEO_HEVC 0x24 |
| 56 | #define STREAM_TYPE_VIDEO_CAVS 0x42 |
| 57 | #define STREAM_TYPE_VIDEO_VC1 0xea |
| 58 | #define STREAM_TYPE_VIDEO_DIRAC 0xd1 |
| 59 | |
| 60 | #define STREAM_TYPE_AUDIO_AC3 0x81 |
| 61 | #define STREAM_TYPE_AUDIO_DTS 0x82 |
| 62 | #define STREAM_TYPE_AUDIO_TRUEHD 0x83 |
| 63 | |
| 64 | typedef struct MpegTSContext MpegTSContext; |
| 65 | |
| 66 | MpegTSContext *avpriv_mpegts_parse_open(AVFormatContext *s); |
| 67 | int avpriv_mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt, |
| 68 | const uint8_t *buf, int len); |
| 69 | void avpriv_mpegts_parse_close(MpegTSContext *ts); |
| 70 | |
| 71 | typedef struct SLConfigDescr { |
| 72 | int use_au_start; |
| 73 | int use_au_end; |
| 74 | int use_rand_acc_pt; |
| 75 | int use_padding; |
| 76 | int use_timestamps; |
| 77 | int use_idle; |
| 78 | int timestamp_res; |
| 79 | int timestamp_len; |
| 80 | int ocr_len; |
| 81 | int au_len; |
| 82 | int inst_bitrate_len; |
| 83 | int degr_prior_len; |
| 84 | int au_seq_num_len; |
| 85 | int packet_seq_num_len; |
| 86 | } SLConfigDescr; |
| 87 | |
| 88 | typedef struct Mp4Descr { |
| 89 | int es_id; |
| 90 | int dec_config_descr_len; |
| 91 | uint8_t *dec_config_descr; |
| 92 | SLConfigDescr sl; |
| 93 | } Mp4Descr; |
| 94 | |
| 95 | /** |
| 96 | * Parse an MPEG-2 descriptor |
| 97 | * @param[in] fc Format context (used for logging only) |
| 98 | * @param st Stream |
| 99 | * @param stream_type STREAM_TYPE_xxx |
| 100 | * @param pp Descriptor buffer pointer |
| 101 | * @param desc_list_end End of buffer |
| 102 | * @return <0 to stop processing |
| 103 | */ |
| 104 | int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type, |
| 105 | const uint8_t **pp, const uint8_t *desc_list_end, |
| 106 | Mp4Descr *mp4_descr, int mp4_descr_count, int pid, |
| 107 | MpegTSContext *ts); |
| 108 | |
| 109 | /** |
| 110 | * Check presence of H264 startcode |
| 111 | * @return <0 to stop processing |
| 112 | */ |
| 113 | int ff_check_h264_startcode(AVFormatContext *s, const AVStream *st, const AVPacket *pkt); |
| 114 | |
| 115 | #endif /* AVFORMAT_MPEGTS_H */ |