1 | //buffer.h: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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5 | * |
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6 | * This file is part of libroar a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * libroar is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | * NOTE for everyone want's to change something and send patches: |
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24 | * read README and HACKING! There a addition information on |
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25 | * the license of this document you need to read before you send |
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26 | * any patches. |
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27 | * |
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28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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29 | * or libpulse*: |
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30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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31 | * and are therefore GPL. Because of this it may be illigal to use |
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32 | * them with any software that uses libesd, libartsc or libpulse*. |
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33 | */ |
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34 | |
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35 | #ifndef _LIBROAR_BUFFER_H_ |
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36 | #define _LIBROAR_BUFFER_H_ |
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37 | |
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38 | #include <roaraudio.h> |
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39 | |
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40 | struct roar_buffer { |
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41 | size_t len; |
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42 | size_t user_len; |
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43 | void * data; |
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44 | void * user_data; |
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45 | void * meta; |
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46 | struct roar_buffer * next; |
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47 | }; |
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48 | |
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49 | struct roar_buffer_stats { |
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50 | int parts; |
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51 | int bytes; |
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52 | int memory_usage; |
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53 | }; |
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54 | |
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55 | #define roar_buffer_next(a) roar_buffer_delete(*(a), (a)) |
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56 | |
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57 | int roar_buffer_new (struct roar_buffer ** buf, size_t len); |
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58 | int roar_buffer_free (struct roar_buffer * buf); |
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59 | int roar_buffer_delete (struct roar_buffer * buf, struct roar_buffer ** next); |
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60 | int roar_buffer_add (struct roar_buffer * buf, struct roar_buffer * next); |
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61 | |
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62 | int roar_buffer_get_next (struct roar_buffer * buf, struct roar_buffer ** next); |
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63 | |
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64 | int roar_buffer_get_data (struct roar_buffer * buf, void ** data); |
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65 | |
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66 | int roar_buffer_set_offset (struct roar_buffer * buf, size_t off); |
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67 | |
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68 | int roar_buffer_shift_out (struct roar_buffer ** buf, void * data, size_t * len); |
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69 | |
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70 | int roar_buffer_set_meta (struct roar_buffer * buf, void * meta); |
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71 | int roar_buffer_get_meta (struct roar_buffer * buf, void ** meta); |
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72 | |
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73 | int roar_buffer_set_len (struct roar_buffer * buf, size_t len); |
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74 | int roar_buffer_get_len (struct roar_buffer * buf, size_t * len); |
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75 | |
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76 | int roar_buffer_duplicate (struct roar_buffer * buf, struct roar_buffer ** copy); |
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77 | |
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78 | int roar_buffer_ring_stats (struct roar_buffer * buf, struct roar_buffer_stats * stats); |
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79 | |
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80 | #endif |
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81 | |
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82 | //ll |
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