FS-4657 --resolve update libsndfile to its latest master

libs/libsndfile/src/ogg_pcm.c

@@ -0,0 +1,164 @@
+/*
+** Copyright (C) 2008-2012 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->strings.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