| /* |
| ** Copyright (C) 2008-2011 Erik de Castro Lopo <erikd@mega-nerd.com> |
| ** |
| ** This program is free software ; you can redistribute it and/or modify |
| ** it under the terms of the GNU Lesser General Public License as published by |
| ** the Free Software Foundation ; either version 2.1 of the License, or |
| ** (at your option) any later version. |
| ** |
| ** This program is distributed in the hope that it will be useful, |
| ** but WITHOUT ANY WARRANTY ; without even the implied warranty of |
| ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| ** GNU Lesser General Public License for more details. |
| ** |
| ** You should have received a copy of the GNU Lesser General Public License |
| ** along with this program ; if not, write to the Free Software |
| ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| |
| #include "sfconfig.h" |
| |
| #include <stdio.h> |
| #include <fcntl.h> |
| #include <string.h> |
| #include <ctype.h> |
| #include <time.h> |
| #include <math.h> |
| |
| #if HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif |
| |
| #include "sndfile.h" |
| #include "sfendian.h" |
| #include "common.h" |
| |
| #if (ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_LIBS) |
| |
| #include <ogg/ogg.h> |
| |
| #include "ogg.h" |
| |
| typedef struct |
| { int32_t serialno ; |
| |
| |
| void * state ; |
| } OPCM_PRIVATE ; |
| |
| static int opcm_read_header (SF_PRIVATE * psf) ; |
| static int opcm_close (SF_PRIVATE *psf) ; |
| |
| int |
| ogg_pcm_open (SF_PRIVATE *psf) |
| { OGG_PRIVATE* odata = psf->container_data ; |
| OPCM_PRIVATE* opcm = calloc (1, sizeof (OPCM_PRIVATE)) ; |
| int error = 0 ; |
| |
| if (odata == NULL) |
| { psf_log_printf (psf, "%s : odata is NULL???\n", __func__) ; |
| return SFE_INTERNAL ; |
| } ; |
| |
| psf->codec_data = opcm ; |
| if (opcm == NULL) |
| return SFE_MALLOC_FAILED ; |
| |
| if (psf->file.mode == SFM_RDWR) |
| return SFE_BAD_MODE_RW ; |
| |
| if (psf->file.mode == SFM_READ) |
| { /* Call this here so it only gets called once, so no memory is leaked. */ |
| ogg_sync_init (&odata->osync) ; |
| |
| if ((error = opcm_read_header (psf))) |
| return error ; |
| |
| #if 0 |
| psf->read_short = opcm_read_s ; |
| psf->read_int = opcm_read_i ; |
| psf->read_float = opcm_read_f ; |
| psf->read_double = opcm_read_d ; |
| psf->sf.frames = opcm_length (psf) ; |
| #endif |
| } ; |
| |
| psf->codec_close = opcm_close ; |
| |
| if (psf->file.mode == SFM_WRITE) |
| { |
| #if 0 |
| /* Set the default opcm quality here. */ |
| vdata->quality = 0.4 ; |
| |
| psf->write_header = opcm_write_header ; |
| psf->write_short = opcm_write_s ; |
| psf->write_int = opcm_write_i ; |
| psf->write_float = opcm_write_f ; |
| psf->write_double = opcm_write_d ; |
| #endif |
| |
| psf->sf.frames = SF_COUNT_MAX ; /* Unknown really */ |
| psf->str_flags = SF_STR_ALLOW_START ; |
| } ; |
| |
| psf->bytewidth = 1 ; |
| psf->blockwidth = psf->bytewidth * psf->sf.channels ; |
| |
| #if 0 |
| psf->seek = opcm_seek ; |
| psf->command = opcm_command ; |
| #endif |
| |
| /* FIXME, FIXME, FIXME : Hack these here for now and correct later. */ |
| psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_SPEEX ; |
| psf->sf.sections = 1 ; |
| |
| psf->datalength = 1 ; |
| psf->dataoffset = 0 ; |
| /* End FIXME. */ |
| |
| return error ; |
| } /* ogg_pcm_open */ |
| |
| static int |
| opcm_read_header (SF_PRIVATE * UNUSED (psf)) |
| { |
| return 0 ; |
| } /* opcm_read_header */ |
| |
| static int |
| opcm_close (SF_PRIVATE * UNUSED (psf)) |
| { |
| |
| |
| return 0 ; |
| } /* opcm_close */ |
| |
| |
| |
| /* |
| encoded_speex_frames = (frames_per_packet * Packets) |
| = 1 * 272 |
| = 272 |
| |
| audio_samples = encoded_speex_frames * frame_size |
| = 272 * 640 |
| = 174080 |
| |
| duration = audio_samples / rate |
| = 174080 / 44100 |
| = 3.947 |
| */ |
| |
| #else /* ENABLE_EXPERIMENTAL_CODE && HAVE_EXTERNAL_LIBS */ |
| |
| int |
| ogg_pcm_open (SF_PRIVATE *psf) |
| { |
| psf_log_printf (psf, "This version of libsndfile was compiled without Ogg/Speex support.\n") ; |
| return SFE_UNIMPLEMENTED ; |
| } /* ogg_pcm_open */ |
| |
| #endif |