+++ /dev/null
-/*
-** Copyright (C) 2002-2011 Erik de Castro Lopo <erikd@mega-nerd.com>
-** Copyright (C) 2007 John ffitch
-**
-** 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 HAVE_EXTERNAL_LIBS
-
-#include <ogg/ogg.h>
-
-#include "ogg.h"
-
-static int ogg_close (SF_PRIVATE *psf) ;
-static int ogg_stream_classify (SF_PRIVATE *psf, OGG_PRIVATE * odata) ;
-static int ogg_page_classify (SF_PRIVATE * psf, const ogg_page * og) ;
-
-int
-ogg_open (SF_PRIVATE *psf)
-{ OGG_PRIVATE* odata = calloc (1, sizeof (OGG_PRIVATE)) ;
- sf_count_t pos = psf_ftell (psf) ;
- int error = 0 ;
-
- psf->container_data = odata ;
- psf->container_close = ogg_close ;
-
- if (psf->file.mode == SFM_RDWR)
- return SFE_BAD_MODE_RW ;
-
- if (psf->file.mode == SFM_READ)
- if ((error = ogg_stream_classify (psf, odata)) != 0)
- return error ;
-
- /* Reset everything to an initial state. */
- ogg_sync_clear (&odata->osync) ;
- ogg_stream_clear (&odata->ostream) ;
- psf_fseek (psf, pos, SEEK_SET) ;
-
- switch (psf->sf.format)
- { case SF_FORMAT_OGG | SF_FORMAT_VORBIS :
- return ogg_vorbis_open (psf) ;
-
- case SF_FORMAT_OGGFLAC :
- free (psf->container_data) ;
- psf->container_data = NULL ;
- psf->container_close = NULL ;
- return flac_open (psf) ;
-
-#if ENABLE_EXPERIMENTAL_CODE
- case SF_FORMAT_OGG | SF_FORMAT_SPEEX :
- return ogg_speex_open (psf) ;
-
- case SF_FORMAT_OGG | SF_FORMAT_PCM_16 :
- case SF_FORMAT_OGG | SF_FORMAT_PCM_24 :
- return ogg_pcm_open (psf) ;
-#endif
-
- default :
- break ;
- } ;
-
- psf_log_printf (psf, "%s : mode should be SFM_READ or SFM_WRITE.\n", __func__) ;
- return SFE_INTERNAL ;
-} /* ogg_open */
-
-
-static int
-ogg_close (SF_PRIVATE *psf)
-{ OGG_PRIVATE* odata = psf->container_data ;
-
- ogg_sync_clear (&odata->osync) ;
- ogg_stream_clear (&odata->ostream) ;
-
- return 0 ;
-} /* ogg_close */
-
-static int
-ogg_stream_classify (SF_PRIVATE *psf, OGG_PRIVATE* odata)
-{ char *buffer ;
- int bytes, nn ;
-
- /* Call this here so it only gets called once, so no memory is leaked. */
- ogg_sync_init (&odata->osync) ;
-
- odata->eos = 0 ;
-
- /* Weird stuff happens if these aren't called. */
- ogg_stream_reset (&odata->ostream) ;
- ogg_sync_reset (&odata->osync) ;
-
- /*
- ** Grab some data at the head of the stream. We want the first page
- ** (which is guaranteed to be small and only contain the Vorbis
- ** stream initial header) We need the first page to get the stream
- ** serialno.
- */
-
- /* Expose the buffer */
- buffer = ogg_sync_buffer (&odata->osync, 4096L) ;
-
- /* Grab the part of the header that has already been read. */
- memcpy (buffer, psf->header, psf->headindex) ;
- bytes = psf->headindex ;
-
- /* Submit a 4k block to libvorbis' Ogg layer */
- bytes += psf_fread (buffer + psf->headindex, 1, 4096 - psf->headindex, psf) ;
- ogg_sync_wrote (&odata->osync, bytes) ;
-
- /* Get the first page. */
- if ((nn = ogg_sync_pageout (&odata->osync, &odata->opage)) != 1)
- {
- /* Have we simply run out of data? If so, we're done. */
- if (bytes < 4096)
- return 0 ;
-
- /* Error case. Must not be Vorbis data */
- psf_log_printf (psf, "Input does not appear to be an Ogg bitstream.\n") ;
- return SFE_MALFORMED_FILE ;
- } ;
-
- /*
- ** Get the serial number and set up the rest of decode.
- ** Serialno first ; use it to set up a logical stream.
- */
- ogg_stream_clear (&odata->ostream) ;
- ogg_stream_init (&odata->ostream, ogg_page_serialno (&odata->opage)) ;
-
- if (ogg_stream_pagein (&odata->ostream, &odata->opage) < 0)
- { /* Error ; stream version mismatch perhaps. */
- psf_log_printf (psf, "Error reading first page of Ogg bitstream data\n") ;
- return SFE_MALFORMED_FILE ;
- } ;
-
- if (ogg_stream_packetout (&odata->ostream, &odata->opacket) != 1)
- { /* No page? must not be vorbis. */
- psf_log_printf (psf, "Error reading initial header packet.\n") ;
- return SFE_MALFORMED_FILE ;
- } ;
-
- odata->codec = ogg_page_classify (psf, &odata->opage) ;
-
- switch (odata->codec)
- { case OGG_VORBIS :
- psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_VORBIS ;
- return 0 ;
-
- case OGG_FLAC :
- case OGG_FLAC0 :
- psf->sf.format = SF_FORMAT_OGGFLAC ;
- return 0 ;
-
- case OGG_SPEEX :
- psf->sf.format = SF_FORMAT_OGG | SF_FORMAT_SPEEX ;
- return 0 ;
-
- case OGG_PCM :
- psf_log_printf (psf, "Detected Ogg/PCM data. This is not supported yet.\n") ;
- return SFE_UNIMPLEMENTED ;
-
- default :
- break ;
- } ;
-
- psf_log_printf (psf, "This Ogg bitstream contains some uknown data type.\n") ;
- return SFE_UNIMPLEMENTED ;
-} /* ogg_stream_classify */
-
-/*==============================================================================
-*/
-
-static struct
-{ const char *str, *name ;
- int len, codec ;
-} codec_lookup [] =
-{ { "Annodex", "Annodex", 8, OGG_ANNODEX },
- { "AnxData", "AnxData", 7, OGG_ANXDATA },
- { "\177FLAC", "Flac1", 5, OGG_FLAC },
- { "fLaC", "Flac0", 4, OGG_FLAC0 },
- { "PCM ", "PCM", 8, OGG_PCM },
- { "Speex", "Speex", 5, OGG_SPEEX },
- { "\001vorbis", "Vorbis", 7, OGG_VORBIS },
-} ;
-
-static int
-ogg_page_classify (SF_PRIVATE * psf, const ogg_page * og)
-{ int k, len ;
-
- for (k = 0 ; k < ARRAY_LEN (codec_lookup) ; k++)
- { if (codec_lookup [k].len > og->body_len)
- continue ;
-
- if (memcmp (og->body, codec_lookup [k].str, codec_lookup [k].len) == 0)
- { psf_log_printf (psf, "Ogg stream data : %s\n", codec_lookup [k].name) ;
- psf_log_printf (psf, "Stream serialno : %010D\n", (int64_t) ogg_page_serialno (og)) ;
- return codec_lookup [k].codec ;
- } ;
- } ;
-
- len = og->body_len < 8 ? og->body_len : 8 ;
-
- psf_log_printf (psf, "Ogg_stream data : '") ;
- for (k = 0 ; k < len ; k++)
- psf_log_printf (psf, "%c", isprint (og->body [k]) ? og->body [k] : '.') ;
- psf_log_printf (psf, "' ") ;
- for (k = 0 ; k < len ; k++)
- psf_log_printf (psf, " %02x", og->body [k] & 0xff) ;
- psf_log_printf (psf, "\n") ;
-
- return 0 ;
-} /* ogg_page_classify */
-
-#else /* HAVE_EXTERNAL_LIBS */
-
-int
-ogg_open (SF_PRIVATE *psf)
-{
- psf_log_printf (psf, "This version of libsndfile was compiled without Ogg/Vorbis support.\n") ;
- return SFE_UNIMPLEMENTED ;
-} /* ogg_open */
-
-#endif
projects / Faustine.git / blobdiff