Josh Coalson | 26560dd | 2001-02-08 00:38:41 +0000 | [diff] [blame] | 1 | /* libFLAC - Free Lossless Audio Codec library |
Josh Coalson | 70118f6 | 2001-01-16 20:17:53 +0000 | [diff] [blame] | 2 | * Copyright (C) 2000,2001 Josh Coalson |
Josh Coalson | bb7f6b9 | 2000-12-10 04:09:52 +0000 | [diff] [blame] | 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Library General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This library is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Library General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Library General Public |
| 15 | * License along with this library; if not, write to the |
| 16 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 17 | * Boston, MA 02111-1307, USA. |
| 18 | */ |
| 19 | |
| 20 | #include <assert.h> |
| 21 | #include <stdio.h> |
| 22 | #include "FLAC/format.h" |
| 23 | |
Josh Coalson | bb7f6b9 | 2000-12-10 04:09:52 +0000 | [diff] [blame] | 24 | const byte FLAC__STREAM_SYNC_STRING[4] = { 'f','L','a','C' }; |
| 25 | const unsigned FLAC__STREAM_SYNC = 0x664C6143; |
| 26 | const unsigned FLAC__STREAM_SYNC_LEN = 32; /* bits */; |
| 27 | |
Josh Coalson | 2013572 | 2001-02-23 21:05:53 +0000 | [diff] [blame] | 28 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN = 16; /* bits */ |
| 29 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN = 16; /* bits */ |
| 30 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN = 24; /* bits */ |
| 31 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN = 24; /* bits */ |
| 32 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN = 20; /* bits */ |
| 33 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN = 3; /* bits */ |
| 34 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN = 5; /* bits */ |
| 35 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN = 36; /* bits */ |
| 36 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN = 128; /* bits */ |
| 37 | const unsigned FLAC__STREAM_METADATA_STREAMINFO_LENGTH = 34; /* bytes */ |
| 38 | |
Josh Coalson | 52c44e9 | 2001-02-23 23:11:34 +0000 | [diff] [blame] | 39 | const unsigned FLAC__STREAM_METADATA_APPLICATION_ID_LEN = 32; /* bits */ |
Josh Coalson | bb7f6b9 | 2000-12-10 04:09:52 +0000 | [diff] [blame] | 40 | |
Josh Coalson | c5d08e0 | 2001-04-10 19:13:50 +0000 | [diff] [blame^] | 41 | const unsigned FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN = 64; /* bits */ |
| 42 | const unsigned FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN = 64; /* bits */ |
| 43 | const unsigned FLAC__STREAM_METADATA_SEEKPOINT_BLOCK_OFFSET_LEN = 16; /* bits */ |
| 44 | const unsigned FLAC__STREAM_METADATA_SEEKPOINT_LEN = 18; /* bytes */ |
| 45 | |
Josh Coalson | bb7f6b9 | 2000-12-10 04:09:52 +0000 | [diff] [blame] | 46 | const unsigned FLAC__STREAM_METADATA_IS_LAST_LEN = 1; /* bits */ |
| 47 | const unsigned FLAC__STREAM_METADATA_TYPE_LEN = 7; /* bits */ |
| 48 | const unsigned FLAC__STREAM_METADATA_LENGTH_LEN = 24; /* bits */ |
| 49 | |
Josh Coalson | 215af57 | 2001-03-27 01:15:58 +0000 | [diff] [blame] | 50 | const unsigned FLAC__FRAME_HEADER_SYNC = 0x3ffe; |
| 51 | const unsigned FLAC__FRAME_HEADER_SYNC_LEN = 14; /* bits */ |
| 52 | const unsigned FLAC__FRAME_HEADER_RESERVED_LEN = 2; /* bits */ |
| 53 | const unsigned FLAC__FRAME_HEADER_BLOCK_SIZE_LEN = 4; /* bits */ |
Josh Coalson | bb7f6b9 | 2000-12-10 04:09:52 +0000 | [diff] [blame] | 54 | const unsigned FLAC__FRAME_HEADER_SAMPLE_RATE_LEN = 4; /* bits */ |
| 55 | const unsigned FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN = 4; /* bits */ |
| 56 | const unsigned FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN = 3; /* bits */ |
| 57 | const unsigned FLAC__FRAME_HEADER_ZERO_PAD_LEN = 1; /* bits */ |
Josh Coalson | 215af57 | 2001-03-27 01:15:58 +0000 | [diff] [blame] | 58 | const unsigned FLAC__FRAME_HEADER_CRC_LEN = 8; /* bits */ |
| 59 | |
| 60 | const unsigned FLAC__FRAME_FOOTER_CRC_LEN = 16; /* bits */ |
Josh Coalson | bb7f6b9 | 2000-12-10 04:09:52 +0000 | [diff] [blame] | 61 | |
| 62 | const unsigned FLAC__ENTROPY_CODING_METHOD_TYPE_LEN = 2; /* bits */ |
| 63 | const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN = 4; /* bits */ |
| 64 | const unsigned FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN = 4; /* bits */ |
| 65 | |
Josh Coalson | 75d0a0b | 2001-01-24 00:42:16 +0000 | [diff] [blame] | 66 | const char *FLAC__EntropyCodingMethodTypeString[] = { |
| 67 | "PARTITIONED_RICE" |
| 68 | }; |
| 69 | |
Josh Coalson | 6dcea51 | 2001-01-23 23:07:36 +0000 | [diff] [blame] | 70 | const unsigned FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN = 4; /* bits */ |
| 71 | const unsigned FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN = 5; /* bits */ |
Josh Coalson | bb7f6b9 | 2000-12-10 04:09:52 +0000 | [diff] [blame] | 72 | |
Josh Coalson | 215af57 | 2001-03-27 01:15:58 +0000 | [diff] [blame] | 73 | const unsigned FLAC__SUBFRAME_ZERO_PAD_LEN = 1; /* bits */ |
| 74 | const unsigned FLAC__SUBFRAME_TYPE_LEN = 6; /* bits */ |
| 75 | const unsigned FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN = 1; /* bits */ |
| 76 | |
| 77 | const unsigned FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK = 0x00; |
| 78 | const unsigned FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK = 0x02; |
| 79 | const unsigned FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK = 0x10; |
| 80 | const unsigned FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK = 0x40; |
Josh Coalson | 75d0a0b | 2001-01-24 00:42:16 +0000 | [diff] [blame] | 81 | |
| 82 | const char *FLAC__SubframeTypeString[] = { |
| 83 | "CONSTANT", |
| 84 | "VERBATIM", |
| 85 | "FIXED", |
| 86 | "LPC" |
| 87 | }; |
| 88 | |
| 89 | const char *FLAC__ChannelAssignmentString[] = { |
| 90 | "INDEPENDENT", |
| 91 | "LEFT_SIDE", |
| 92 | "RIGHT_SIDE", |
| 93 | "MID_SIDE" |
| 94 | }; |
| 95 | |
| 96 | const char *FLAC__MetaDataTypeString[] = { |
Josh Coalson | 2013572 | 2001-02-23 21:05:53 +0000 | [diff] [blame] | 97 | "STREAMINFO", |
| 98 | "PADDING", |
| 99 | "APPLICATION" |
Josh Coalson | 75d0a0b | 2001-01-24 00:42:16 +0000 | [diff] [blame] | 100 | }; |