| 1 | /* |
| 2 | * This file is part of DisOrder |
| 3 | * Copyright (C) 2007-2010 Richard Kettlewell |
| 4 | * |
| 5 | * This program is free software: you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation, either version 3 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | */ |
| 18 | /** @file server/decode.h |
| 19 | * @brief General-purpose decoder for use by speaker process |
| 20 | */ |
| 21 | #ifndef DECODE_H |
| 22 | #define DECODE_H |
| 23 | |
| 24 | #include "disorder-server.h" |
| 25 | #include "hreader.h" |
| 26 | #include "speaker-protocol.h" |
| 27 | |
| 28 | #define INPUT_BUFFER_SIZE 1048576 |
| 29 | |
| 30 | /** @brief Output file */ |
| 31 | extern FILE *outputfp; |
| 32 | |
| 33 | /** @brief Input filename */ |
| 34 | extern const char *path; |
| 35 | |
| 36 | /** @brief Input buffer */ |
| 37 | extern char input_buffer[INPUT_BUFFER_SIZE]; |
| 38 | |
| 39 | /** @brief Number of bytes read into buffer */ |
| 40 | extern int input_count; |
| 41 | |
| 42 | /** @brief Write an 8-bit word */ |
| 43 | static inline void output_8(int n) { |
| 44 | if(putc(n, outputfp) < 0) |
| 45 | disorder_fatal(errno, "decoding %s: output error", path); |
| 46 | } |
| 47 | |
| 48 | /** @brief Write a 16-bit word in bigendian format */ |
| 49 | static inline void output_16(uint16_t n) { |
| 50 | if(putc(n >> 8, outputfp) < 0 |
| 51 | || putc(n, outputfp) < 0) |
| 52 | disorder_fatal(errno, "decoding %s: output error", path); |
| 53 | } |
| 54 | |
| 55 | /** @brief Write a 24-bit word in bigendian format */ |
| 56 | static inline void output_24(uint32_t n) { |
| 57 | if(putc(n >> 16, outputfp) < 0 |
| 58 | || putc(n >> 8, outputfp) < 0 |
| 59 | || putc(n, outputfp) < 0) |
| 60 | disorder_fatal(errno, "decoding %s: output error", path); |
| 61 | } |
| 62 | |
| 63 | /** @brief Write a 32-bit word in bigendian format */ |
| 64 | static inline void output_32(uint32_t n) { |
| 65 | if(putc(n >> 24, outputfp) < 0 |
| 66 | || putc(n >> 16, outputfp) < 0 |
| 67 | || putc(n >> 8, outputfp) < 0 |
| 68 | || putc(n, outputfp) < 0) |
| 69 | disorder_fatal(errno, "decoding %s: output error", path); |
| 70 | } |
| 71 | |
| 72 | void output_header(int rate, |
| 73 | int channels, |
| 74 | int bits, |
| 75 | int nbytes, |
| 76 | int endian); |
| 77 | |
| 78 | void decode_mp3(void); |
| 79 | void decode_ogg(void); |
| 80 | void decode_wav(void); |
| 81 | void decode_flac(void); |
| 82 | |
| 83 | #endif /* DECODE_H */ |
| 84 | |
| 85 | /* |
| 86 | Local Variables: |
| 87 | c-basic-offset:2 |
| 88 | comment-column:40 |
| 89 | fill-column:79 |
| 90 | indent-tabs-mode:nil |
| 91 | End: |
| 92 | */ |