Alexandre Lision | 7c6f4a6 | 2013-09-05 13:27:01 -0400 | [diff] [blame] | 1 | /* |
| 2 | ** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> |
| 3 | ** |
| 4 | ** This program is free software ; you can redistribute it and/or modify |
| 5 | ** it under the terms of the GNU Lesser General Public License as published by |
| 6 | ** the Free Software Foundation ; either version 2.1 of the License, or |
| 7 | ** (at your option) any later version. |
| 8 | ** |
| 9 | ** This program 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 |
| 12 | ** GNU Lesser General Public License for more details. |
| 13 | ** |
| 14 | ** You should have received a copy of the GNU Lesser General Public License |
| 15 | ** along with this program ; if not, write to the Free Software |
| 16 | ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | |
| 20 | #include "sfconfig.h" |
| 21 | |
| 22 | #include <stdio.h> |
| 23 | #include <fcntl.h> |
| 24 | #include <string.h> |
| 25 | #include <ctype.h> |
| 26 | #include <time.h> |
| 27 | #include <math.h> |
| 28 | |
| 29 | #if HAVE_UNISTD_H |
| 30 | #include <unistd.h> |
| 31 | #endif |
| 32 | |
| 33 | #include "sndfile.h" |
| 34 | #include "sfendian.h" |
| 35 | #include "common.h" |
| 36 | |
| 37 | #if (ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_LIBS) |
| 38 | |
| 39 | #include <ogg/ogg.h> |
| 40 | |
| 41 | #include "ogg.h" |
| 42 | |
| 43 | typedef struct |
| 44 | { int32_t serialno ; |
| 45 | |
| 46 | |
| 47 | void * state ; |
| 48 | } OPCM_PRIVATE ; |
| 49 | |
| 50 | static int opcm_read_header (SF_PRIVATE * psf) ; |
| 51 | static int opcm_close (SF_PRIVATE *psf) ; |
| 52 | |
| 53 | int |
| 54 | ogg_pcm_open (SF_PRIVATE *psf) |
| 55 | { OGG_PRIVATE* odata = psf->container_data ; |
| 56 | OPCM_PRIVATE* opcm = calloc (1, sizeof (OPCM_PRIVATE)) ; |
| 57 | int error = 0 ; |
| 58 | |
| 59 | if (odata == NULL) |
| 60 | { psf_log_printf (psf, "%s : odata is NULL???\n", __func__) ; |
| 61 | return SFE_INTERNAL ; |
| 62 | } ; |
| 63 | |
| 64 | psf->codec_data = opcm ; |
| 65 | if (opcm == NULL) |
| 66 | return SFE_MALLOC_FAILED ; |
| 67 | |
| 68 | if (psf->file.mode == SFM_RDWR) |
| 69 | return SFE_BAD_MODE_RW ; |
| 70 | |
| 71 | if (psf->file.mode == SFM_READ) |
| 72 | { /* Call this here so it only gets called once, so no memory is leaked. */ |
| 73 | ogg_sync_init (&odata->osync) ; |
| 74 | |
| 75 | if ((error = opcm_read_header (psf))) |
| 76 | return error ; |
| 77 | |
| 78 | #if 0 |
| 79 | psf->read_short = opcm_read_s ; |
| 80 | psf->read_int = opcm_read_i ; |
| 81 | psf->read_float = opcm_read_f ; |
| 82 | psf->read_double = opcm_read_d ; |
| 83 | psf->sf.frames = opcm_length (psf) ; |
| 84 | #endif |
| 85 | } ; |
| 86 | |
| 87 | psf->codec_close = opcm_close ; |
| 88 | |
| 89 | if (psf->file.mode == SFM_WRITE) |
| 90 | { |
| 91 | #if 0 |
| 92 | /* Set the default opcm quality here. */ |
| 93 | vdata->quality = 0.4 ; |
| 94 | |
| 95 | psf->write_header = opcm_write_header ; |
| 96 | psf->write_short = opcm_write_s ; |
| 97 | psf->write_int = opcm_write_i ; |
| 98 | psf->write_float = opcm_write_f ; |
| 99 | psf->write_double = opcm_write_d ; |
| 100 | #endif |
| 101 | |
| 102 | psf->sf.frames = SF_COUNT_MAX ; /* Unknown really */ |
| 103 | psf->str_flags = SF_STR_ALLOW_START ; |
| 104 | } ; |
| 105 | |
| 106 | psf->bytewidth = 1 ; |
| 107 | psf->blockwidth = psf->bytewidth * psf->sf.channels ; |
| 108 | |
| 109 | #if 0 |
| 110 | psf->seek = opcm_seek ; |
| 111 | psf->command = opcm_command ; |
| 112 | #endif |
| 113 | |
| 114 | /* FIXME, FIXME, FIXME : Hack these here for now and correct later. */ |
| 115 | psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_SPEEX ; |
| 116 | psf->sf.sections = 1 ; |
| 117 | |
| 118 | psf->datalength = 1 ; |
| 119 | psf->dataoffset = 0 ; |
| 120 | /* End FIXME. */ |
| 121 | |
| 122 | return error ; |
| 123 | } /* ogg_pcm_open */ |
| 124 | |
| 125 | static int |
| 126 | opcm_read_header (SF_PRIVATE * UNUSED (psf)) |
| 127 | { |
| 128 | return 0 ; |
| 129 | } /* opcm_read_header */ |
| 130 | |
| 131 | static int |
| 132 | opcm_close (SF_PRIVATE * UNUSED (psf)) |
| 133 | { |
| 134 | |
| 135 | |
| 136 | return 0 ; |
| 137 | } /* opcm_close */ |
| 138 | |
| 139 | |
| 140 | |
| 141 | /* |
| 142 | encoded_speex_frames = (frames_per_packet * Packets) |
| 143 | = 1 * 272 |
| 144 | = 272 |
| 145 | |
| 146 | audio_samples = encoded_speex_frames * frame_size |
| 147 | = 272 * 640 |
| 148 | = 174080 |
| 149 | |
| 150 | duration = audio_samples / rate |
| 151 | = 174080 / 44100 |
| 152 | = 3.947 |
| 153 | */ |
| 154 | |
| 155 | #else /* ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_LIBS */ |
| 156 | |
| 157 | int |
| 158 | ogg_pcm_open (SF_PRIVATE *psf) |
| 159 | { |
| 160 | psf_log_printf (psf, "This version of libsndfile was compiled without Ogg/Speex support.\n") ; |
| 161 | return SFE_UNIMPLEMENTED ; |
| 162 | } /* ogg_pcm_open */ |
| 163 | |
| 164 | #endif |