kopia lustrzana https://github.com/kierank/libmpegts
231 wiersze
7.3 KiB
C
231 wiersze
7.3 KiB
C
/*****************************************************************************
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* libmpegts.h : libmpegts public API
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*****************************************************************************
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* Copyright (C) 2010 Kieran Kunhya
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
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*****************************************************************************/
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#ifndef LIBMPEGTS_H
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#define LIBMPEGTS_H
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/**** Version ****/
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#define LIBMPEGTS_API_VERSION_MAJOR 0
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#define LIBMPEGTS_API_VERSION_MINOR 1
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/**** Stream Formats ****/
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/* Generic */
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#define LIBMPEGTS_VIDEO_MPEG2 1
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#define LIBMPEGTS_VIDEO_H264 2
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#define LIBMPEGTS_AUDIO_MPEG1 32
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#define LIBMPEGTS_AUDIO_MPEG2 33
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#define LIBMPEGTS_AUDIO_ADTS 34
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#define LIBMPEGTS_AUDIO_LATM 35
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#define LIBMPEGTS_AUDIO_AC3 36
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#define LIBMPEGTS_AUDIO_EAC3 37
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#define LIBMPEGTS_AUDIO_LPCM 38 /* Blu-Ray only */
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#define LIBMPEGTS_AUDIO_DTS 39
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/* Blu-Ray Stream Formats */
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#define LIBMPEGTS_AUDIO_DOLBY_LOSSLESS 40 /* "Dolby Lossless audio stream for Primary audio" */
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#define LIBMPEGTS_AUDIO_DTS_HD 41 /* "DTS-HD audio stream except XLL for Primary audio" */
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#define LIBMPEGTS_AUDIO_DTS_HD_XLL 42 /* "DTS-HD audio stream XLL for Primary audio" */
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#define LIBMPEGTS_AUDIO_EAC3_SECONDARY 43 /* "Dolby Digital Plus audio stream for Secondary audio" */
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#define LIBMPEGTS_AUDIO_DTS_HD_SECONDARY 44 /* "DTS-HD LBR audio stream for Secondary audio" */
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#define LIBMPEGTS_SUB_PRESENTATION_GRAPHICS 45
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#define LIBMPEGTS_SUB_INTERACTIVE_GRAPHICS 46
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#define LIBMPEGTS_SUB_TEXT 47
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/* SMPTE Stream Formats */
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#define LIBMPEGTS_AUDIO_302M 96
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/* DVB Stream Formats */
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#define LIBMPEGTS_SUB_DVB 128
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/* Misc */
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#define LIBMPEGTS_TELETEXT 160
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/* Stream IDs */
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/* SMPTE 302M, AC3 and DVB subtitles use Private Stream 1 */
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#define LIBMPEGTS_STREAM_ID_PRIVATE_1 0xbd
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#define LIBMPEGTS_STREAM_ID_PRIVATE_2 0xbf
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/* MPEG Audio (all types): 0xc0-0xdf */
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#define LIBMPEGTS_STREAM_ID_MPEGAUDIO 0xc0
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/* MPEG Video (all types): 0xe0-0xef */
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#define LIBMPEGTS_STREAM_ID_MPEGVIDEO 0xe0
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/**** Blu-Ray Information ****/
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/* Blu-Ray Aspect Ratios */
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#define LIBMPEGTS_HDMV_AR_4_3 2
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#define LIBMPEGTS_HDMV_AR_16_9 3
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/* Blu-Ray Video Formats */
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#define LIBMPEGTS_HDMV_480I 1
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#define LIBMPEGTS_HDMV_576I 2
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#define LIBMPEGTS_HDMV_480P 3
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#define LIBMPEGTS_HDMV_1080I 4
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#define LIBMPEGTS_HDMV_720P 5
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#define LIBMPEGTS_HDMV_1080P 6
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#define LIBMPEGTS_HDMV_576P 7
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/* DVB-AU AND Blu-Ray Frame Rate */
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#define LIBMPEGTS_DVB_AU_23_976_FPS 1
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#define LIBMPEGTS_DVB_AU_24_FPS 2
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#define LIBMPEGTS_DVB_AU_25_FPS 3
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#define LIBMPEGTS_DVB_AU_29_97_FPS 4
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#define LIBMPEGTS_DVB_AU_30_FPS 5 /* Not allowed in Blu-Ray */
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#define LIBMPEGTS_DVB_AU_50_FPS 6
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#define LIBMPEGTS_DVB_AU_59_94_FPS 7
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#define LIBMPEGTS_DVB_AU_60_FPS 8 /* Not allowed in Blu-Ray */
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/**** DVB AU_information ****/
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/* DVB-AU Pic-Struct */
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#define LIBMPEGTS_DVB_AU_PIC_STRUCT_NONE 1
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#define LIBMPEGTS_DVB_AU_PIC_STRUCT_TOP_FIELD 2
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#define LIBMPEGTS_DVB_AU_PIC_STRUCT_BOT_FIELD 3
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/* DVB-AU Coding type MPEG-2 */
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#define LIBMPEGTS_CODING_TYPE_I 1
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#define LIBMPEGTS_CODING_TYPE_P 2
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#define LIBMPEGTS_CODING_TYPE_B 3
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/* DVB-AU Coding type H.264 */
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#define LIBMPEGTS_CODING_TYPE_SLICE_IDR (1<<3)
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#define LIBMPEGTS_CODING_TYPE_SLICE_I (1<<2)
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#define LIBMPEGTS_CODING_TYPE_SLICE_P (1<<1)
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#define LIBMPEGTS_CODING_TYPE_SLICE_B (1<<0)
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/* TS types: Packetised Elementary Stream,
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* Transport Stream, DVB, ATSC, CableLabs, ISDB, Generic (188 bytes),
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* Blu-Ray HDMV (192 bytes) */
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enum ts_type_t
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{
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TS_TYPE_DVB,
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TS_TYPE_ATSC,
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TS_TYPE_CABLELABS,
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TS_TYPE_ISDB,
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TS_TYPE_GENERIC,
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TS_TYPE_BLU_RAY,
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};
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/**** Levels and Profiles ****/
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/* MPEG-2 Levels */
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enum mpeg2_level_t
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{
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MPEG2_LEVEL_LOW,
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MPEG2_LEVEL_MAIN,
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MPEG2_LEVEL_HIGH_1440,
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MPEG2_LEVEL_HIGH,
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MPEG2_LEVEL_HIGHP,
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};
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/* MPEG-2 Profiles */
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enum mpeg2_profile_t
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{
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MPEG2_PROFILE_SIMPLE,
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MPEG2_PROFILE_MAIN,
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MPEG2_PROFILE_422,
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};
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/* H264 Profiles */
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enum h264_profile_t
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{
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H264_BASELINE,
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H264_MAIN,
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H264_HIGH,
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H264_HIGH_10,
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H264_HIGH_422,
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H264_HIGH_444_PRED,
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H264_HIGH_10_INTRA,
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H264_HIGH_422_INTRA,
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H264_HIGH_444_INTRA,
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H264_CAVLC_444_INTRA,
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};
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/* Opaque Structure */
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typedef struct ts_writer_t ts_writer_t;
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/* General Stream Information
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*
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* PID
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* stream_format - Use stream formats above
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* stream_id - See Table 2-22 in ISO 13818-1
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* lang_code - ISO 639 Part 2 Language code (some non-standard codes exist)
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* * has_stream_identifier - Set to 1 if stream identifier is present
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* * stream_identifier - Stream identifier value FIXME all
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*
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* dvb_au - write DVB AU_information elements (video streams only)
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* dvb_au_frame_rate - DVB AU_information frame rate code (see above #defines)
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*
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* hdmv_frame_rate - For H.264 "Frame-rate = time_scale/num_units_in_tick/2" TODO MPEG-2 (see above #defines)
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* hdmv_aspect_ratio - either LIBMPEGTS_HDMV_AR_4_3 or LIBMPEGTS_HDMV_AR_16_9
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* hdmv_video_format - Video format (see above #defines)
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* */
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typedef struct ts_stream_t
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{
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int pid;
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int stream_format;
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int stream_id;
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char *lang_code;
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int dvb_au;
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int dvb_au_frame_rate;
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int hdmv_frame_rate;
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int hdmv_aspect_ratio;
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int hdmv_video_format;
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} ts_stream_t;
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/***** Additional Codec-Specific functions *****/
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/* Some formats may require extra information. Setup the relevant information using the following functions */
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/* Video */
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/* Setup / Update MPEG Video
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* Mandatory before writing any MPEG Video Stream.
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*
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* MPEG-2 Video Stream
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*
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* level - MPEG-2 level
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* profile - MPEG-2 profile
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* vbv_maxrate - maximum bitrate into the vbv in bits/s
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* vbv_bufsize - vbv buffer size
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* frame_rate - MPEG-2 framerate code
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*
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* AVC Stream
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*
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* level_idc / profile_idc are as defined in the H.264 Specification.
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* vbv_maxrate - maximum bitrate into the vbv in bits/s
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* vbv_bufsize - vbv buffer size
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* frame_rate - not used in AVC
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*
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* The only supported H.264 files are those with a Buffering Period SEI at each keyframe but nal_hrd_parameters_present set to 0.
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* This is owing to bugs/inconsistencies in the TS specification. This does not apply to Blu-Ray.
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*/
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/* Setup / Update SMPTE 302M Stream
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* Mandatory before writing any 302M Stream.
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*
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* bit_depth - 16, 20 or 24 bits per sample.
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* num_channels - 2, 4, 6 or 8 channels.
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*
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* As per SMPTE 302M the sample rate can only be 48000Hz.
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* Notes: The PTS of a SMPTE 302M frame shall be within 2ms of the corresponding video frame
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* It is the responsibility of the calling application to encapsulate the SMPTE 302M data. */
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int ts_setup_302m_stream( ts_writer_t *w, int pid, int bit_depth, int num_channels );
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#endif
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