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A modern, network-enabled music player platform built on Rockbox technology. rockboxd.tsiry-sandratraina.com
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * * Stream definitions for MPEG * * Copyright (c) 2007 Michael Sevakis * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/#ifndef MPEG_STREAM_H#define MPEG_STREAM_H
/* Codes for various header byte sequences - MSB represents lowest memory address */#define PACKET_START_CODE_PREFIX 0x00000100ul#define END_CODE 0x000001b9ul#define PACK_START_CODE 0x000001baul#define SYSTEM_HEADER_START_CODE 0x000001bbul
/* p = base pointer, b0 - b4 = byte offsets from p *//* We only care about the MS 32 bits of the 33 and so the ticks are 45kHz */#define TS_FROM_HEADER(p, b0) \ ((uint32_t)((((p)[(b0)+0] & 0x0e) << 28) | \ (((p)[(b0)+1] ) << 21) | \ (((p)[(b0)+2] & 0xfe) << 13) | \ (((p)[(b0)+3] ) << 6) | \ (((p)[(b0)+4] ) >> 2)))
#define TS_CHECK_MARKERS(p, b0) \ (((((p)[(b0)+0] & 0x01) << 2) | \ (((p)[(b0)+2] & 0x01) << 1) | \ (((p)[(b0)+4] & 0x01) )) == 0x07)
/* Get the SCR in our 45kHz ticks. Ignore the 9-bit extension */#define MPEG2_PACK_HEADER_SCR(p, b0) \ ((uint32_t)((((p)[(b0)+0] & 0x38) << 26) | \ (((p)[(b0)+0] & 0x03) << 27) | \ (((p)[(b0)+1] ) << 19) | \ (((p)[(b0)+2] & 0xf8) << 11) | \ (((p)[(b0)+2] & 0x03) << 12) | \ (((p)[(b0)+3] ) << 4) | \ (((p)[(b0)+4] ) >> 4)))
#define MPEG2_CHECK_PACK_SCR_MARKERS(ph, b0) \ (((((ph)[(b0)+0] & 0x04) ) | \ (((ph)[(b0)+2] & 0x04) >> 1) | \ (((ph)[(b0)+4] & 0x04) >> 2)) == 0x07)
#define INVALID_TIMESTAMP (~(uint32_t)0)#define MAX_TIMESTAMP (INVALID_TIMESTAMP-1)#define TS_SECOND (45000) /* Timestamp ticks per second */#define TC_SECOND (27000000) /* MPEG timecode ticks per second */
/* These values immediately follow the start code prefix '00 00 01' */
/* Video start codes */#define MPEG_START_PICTURE 0x00#define MPEG_START_SLICE_FIRST 0x01#define MPEG_START_SLICE_LAST 0xaf#define MPEG_START_RESERVED_1 0xb0#define MPEG_START_RESERVED_2 0xb1#define MPEG_START_USER_DATA 0xb2#define MPEG_START_SEQUENCE_HEADER 0xb3#define MPEG_START_SEQUENCE_ERROR 0xb4#define MPEG_START_EXTENSION 0xb5#define MPEG_START_RESERVED_3 0xb6#define MPEG_START_SEQUENCE_END 0xb7#define MPEG_START_GOP 0xb8
/* Stream IDs */#define MPEG_STREAM_PROGRAM_END 0xb9#define MPEG_STREAM_PACK_HEADER 0xba#define MPEG_STREAM_SYSTEM_HEADER 0xbb#define MPEG_STREAM_PROGRAM_STREAM_MAP 0xbc#define MPEG_STREAM_PRIVATE_1 0xbd#define MPEG_STREAM_PADDING 0xbe#define MPEG_STREAM_PRIVATE_2 0xbf#define MPEG_STREAM_AUDIO_FIRST 0xc0#define MPEG_STREAM_AUDIO_LAST 0xcf#define MPEG_STREAM_VIDEO_FIRST 0xe0#define MPEG_STREAM_VIDEO_LAST 0xef#define MPEG_STREAM_ECM 0xf0#define MPEG_STREAM_EMM 0xf1/* ITU-T Rec. H.222.0 | ISO/IEC 13818-1 Annex A or * ISO/IEC 13818-6_DSMCC_stream */#define MPEG_STREAM_MISC_1 0xf2/* ISO/IEC_13522_stream */#define MPEG_STREAM_MISC_2 0xf3/* ITU-T Rec. H.222.1 type A - E */#define MPEG_STREAM_MISC_3 0xf4#define MPEG_STREAM_MISC_4 0xf5#define MPEG_STREAM_MISC_5 0xf6#define MPEG_STREAM_MISC_6 0xf7#define MPEG_STREAM_MISC_7 0xf8#define MPEG_STREAM_ANCILLARY 0xf9#define MPEG_STREAM_RESERVED_FIRST 0xfa#define MPEG_STREAM_RESERVED_LAST 0xfe/* Program stream directory */#define MPEG_STREAM_PROGRAM_DIRECTORY 0xff
#define STREAM_IS_AUDIO(s) (((s) & 0xf0) == 0xc0)#define STREAM_IS_VIDEO(s) (((s) & 0xf0) == 0xe0)
#define MPEG_MAX_PACKET_SIZE (64*1024+16)
/* Largest MPEG audio frame - MPEG1, Layer II, 384kbps, 32kHz, pad */#define MPA_MAX_FRAME_SIZE 1729
#endif /* MPEG_STREAM_H */