/*
** Copyright (C) 1999-2005 Erik de Castro Lopo <erikd@mega-nerd.com>
** Copyright (C) 2004-2005 David Viens <davidv@plogue.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	<string.h>
#include	<ctype.h>
#include	<time.h>

#include	"sndfile.h"
#include	"sfendian.h"
#include	"common.h"
#include	"wav_w64.h"

/*  Known WAVEFORMATEXTENSIBLE GUIDS.  */
static const EXT_SUBFORMAT MSGUID_SUBTYPE_PCM =
{	0x00000001, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;

static const EXT_SUBFORMAT MSGUID_SUBTYPE_MS_ADPCM =
{	0x00000002, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;

static const EXT_SUBFORMAT MSGUID_SUBTYPE_IEEE_FLOAT =
{	0x00000003, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;

static const EXT_SUBFORMAT MSGUID_SUBTYPE_ALAW =
{	0x00000006, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;

static const EXT_SUBFORMAT MSGUID_SUBTYPE_MULAW =
{	0x00000007, 0x0000, 0x0010, {	0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 }
} ;

/*
** the next two are from
** http://dream.cs.bath.ac.uk/researchdev/wave-ex/bformat.html
*/

static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM =
{	0x00000001, 0x0721, 0x11d3, {	0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
} ;

static const EXT_SUBFORMAT MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_IEEE_FLOAT =
{	0x00000003, 0x0721, 0x11d3, {	0x86, 0x44, 0xC8, 0xC1, 0xCA, 0x00, 0x00, 0x00 }
} ;


#if 0
/* maybe interesting one day to read the following through sf_read_raw */
/* http://www.bath.ac.uk/~masrwd/pvocex/pvocex.html */
static const EXT_SUBFORMAT MSGUID_SUBTYPE_PVOCEX =
{	0x8312B9C2, 0x2E6E, 0x11d4, {	0xA8, 0x24, 0xDE, 0x5B, 0x96, 0xC3, 0xAB, 0x21 }
} ;
#endif

/*------------------------------------------------------------------------------
 * Private static functions.
 */

static int
wavex_write_guid_equal (const EXT_SUBFORMAT * first, const EXT_SUBFORMAT * second)
{	return !memcmp (first, second, sizeof (EXT_SUBFORMAT)) ;
} /* wavex_write_guid_equal */



int
wav_w64_read_fmt_chunk (SF_PRIVATE *psf, WAV_FMT *wav_fmt, int structsize)
{	int	bytesread, k, bytespersec = 0 ;

	memset (wav_fmt, 0, sizeof (WAV_FMT)) ;

	if (structsize < 16)
		return SFE_WAV_FMT_SHORT ;

	/* assume psf->rwf_endian is already properly set */

	/* Read the minimal WAV file header here. */
	bytesread = psf_binheader_readf (psf, "224422",
					&(wav_fmt->format), &(wav_fmt->min.channels),
					&(wav_fmt->min.samplerate), &(wav_fmt->min.bytespersec),
					&(wav_fmt->min.blockalign), &(wav_fmt->min.bitwidth)) ;

	psf_log_printf (psf, "  Format        : 0x%X => %s\n", wav_fmt->format, wav_w64_format_str (wav_fmt->format)) ;
	psf_log_printf (psf, "  Channels      : %d\n", wav_fmt->min.channels) ;
	psf_log_printf (psf, "  Sample Rate   : %d\n", wav_fmt->min.samplerate) ;
	psf_log_printf (psf, "  Block Align   : %d\n", wav_fmt->min.blockalign) ;

	if (wav_fmt->format == WAVE_FORMAT_PCM && wav_fmt->min.bitwidth == 24 &&
			wav_fmt->min.blockalign == 4 * wav_fmt->min.channels)
	{
		psf_log_printf (psf, "\nInvalid file generated by Syntrillium's Cooledit!\n"
				"Treating as WAVE_FORMAT_IEEE_FLOAT 32 bit floating point file.\n\n") ;
		psf_log_printf (psf, "  Bit Width     : 24 (should be 32)\n") ;
		wav_fmt->min.bitwidth = 32 ;
		wav_fmt->format = WAVE_FORMAT_IEEE_FLOAT ;
		}
	else if (wav_fmt->min.bitwidth == 0)
	{	switch (wav_fmt->format)
		{	case WAVE_FORMAT_GSM610 :
			case WAVE_FORMAT_IPP_ITU_G_723_1 :
					psf_log_printf (psf, "  Bit Width     : %d\n", wav_fmt->min.bitwidth) ;
					break ;
			default :
					psf_log_printf (psf, "  Bit Width     : %d (should not be 0)\n", wav_fmt->min.bitwidth) ;
			}
		}
	else
	{	switch (wav_fmt->format)
		{	case WAVE_FORMAT_GSM610 :
			case WAVE_FORMAT_IPP_ITU_G_723_1 :
		psf_log_printf (psf, "  Bit Width     : %d (should be 0)\n", wav_fmt->min.bitwidth) ;
					break ;
			default :
					psf_log_printf (psf, "  Bit Width     : %d\n", wav_fmt->min.bitwidth) ;
			}
		} ;

	psf->sf.samplerate	= wav_fmt->min.samplerate ;
	psf->sf.frames 		= 0 ;					/* Correct this when reading data chunk. */
	psf->sf.channels	= wav_fmt->min.channels ;

	switch (wav_fmt->format)
	{	case WAVE_FORMAT_PCM :
		case WAVE_FORMAT_IEEE_FLOAT :
				bytespersec = wav_fmt->min.samplerate * wav_fmt->min.blockalign ;
				if (wav_fmt->min.bytespersec != (unsigned) bytespersec)
					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->min.bytespersec, bytespersec) ;
				else
					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->min.bytespersec) ;

				psf->bytewidth = BITWIDTH2BYTES (wav_fmt->min.bitwidth) ;
				break ;

		case WAVE_FORMAT_ALAW :
		case WAVE_FORMAT_MULAW :
				if (wav_fmt->min.bytespersec / wav_fmt->min.blockalign != wav_fmt->min.samplerate)
					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->min.bytespersec, wav_fmt->min.samplerate * wav_fmt->min.blockalign) ;
				else
					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->min.bytespersec) ;

				psf->bytewidth = 1 ;
				if (structsize >= 18)
				{	bytesread += psf_binheader_readf (psf, "2", &(wav_fmt->size20.extrabytes)) ;
					psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->size20.extrabytes) ;
					} ;
				break ;

		case WAVE_FORMAT_IMA_ADPCM :
				if (wav_fmt->min.bitwidth != 4)
					return SFE_WAV_ADPCM_NOT4BIT ;
				if (wav_fmt->min.channels < 1 || wav_fmt->min.channels > 2)
					return SFE_WAV_ADPCM_CHANNELS ;

				bytesread +=
				psf_binheader_readf (psf, "22", &(wav_fmt->ima.extrabytes), &(wav_fmt->ima.samplesperblock)) ;

				bytespersec = (wav_fmt->ima.samplerate * wav_fmt->ima.blockalign) / wav_fmt->ima.samplesperblock ;
				if (wav_fmt->ima.bytespersec != (unsigned) bytespersec)
					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->ima.bytespersec, bytespersec) ;
				else
					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->ima.bytespersec) ;

				psf->bytewidth = 2 ;
				psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->ima.extrabytes) ;
				psf_log_printf (psf, "  Samples/Block : %d\n", wav_fmt->ima.samplesperblock) ;
				break ;

		case WAVE_FORMAT_MS_ADPCM :
				if (wav_fmt->msadpcm.bitwidth != 4)
					return SFE_WAV_ADPCM_NOT4BIT ;
				if (wav_fmt->msadpcm.channels < 1 || wav_fmt->msadpcm.channels > 2)
					return SFE_WAV_ADPCM_CHANNELS ;

				bytesread +=
				psf_binheader_readf (psf, "222", &(wav_fmt->msadpcm.extrabytes),
						&(wav_fmt->msadpcm.samplesperblock), &(wav_fmt->msadpcm.numcoeffs)) ;

				bytespersec = (wav_fmt->min.samplerate * wav_fmt->min.blockalign) / wav_fmt->msadpcm.samplesperblock ;
				if (wav_fmt->min.bytespersec == (unsigned) bytespersec)
					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->min.bytespersec) ;
				else if (wav_fmt->min.bytespersec == (wav_fmt->min.samplerate / wav_fmt->msadpcm.samplesperblock) * wav_fmt->min.blockalign)
					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d (MS BUG!))\n", wav_fmt->min.bytespersec, bytespersec) ;
				else
					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->min.bytespersec, bytespersec) ;


				psf->bytewidth = 2 ;
				psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->msadpcm.extrabytes) ;
				psf_log_printf (psf, "  Samples/Block : %d\n", wav_fmt->msadpcm.samplesperblock) ;
				if (wav_fmt->msadpcm.numcoeffs > SIGNED_SIZEOF (MS_ADPCM_WAV_FMT) / SIGNED_SIZEOF (int))
				{	psf_log_printf (psf, "  No. of Coeffs : %d ****\n", wav_fmt->msadpcm.numcoeffs) ;
					wav_fmt->msadpcm.numcoeffs = SIGNED_SIZEOF (MS_ADPCM_WAV_FMT) / SIGNED_SIZEOF (int) ;
					}
				else
					psf_log_printf (psf, "  No. of Coeffs : %d\n", wav_fmt->msadpcm.numcoeffs) ;

				psf_log_printf (psf, "    Index   Coeffs1   Coeffs2\n") ;
				for (k = 0 ; k < wav_fmt->msadpcm.numcoeffs ; k++)
				{	bytesread +=
					psf_binheader_readf (psf, "22", &(wav_fmt->msadpcm.coeffs [k].coeff1), &(wav_fmt->msadpcm.coeffs [k].coeff2)) ;
					LSF_SNPRINTF (psf->u.cbuf, sizeof (psf->u.cbuf), "     %2d     %7d   %7d\n", k, wav_fmt->msadpcm.coeffs [k].coeff1, wav_fmt->msadpcm.coeffs [k].coeff2) ;
					psf_log_printf (psf, psf->u.cbuf) ;
					} ;
				break ;

		case WAVE_FORMAT_GSM610 :
				if (wav_fmt->gsm610.channels != 1 || wav_fmt->gsm610.blockalign != 65)
					return SFE_WAV_GSM610_FORMAT ;

				bytesread +=
				psf_binheader_readf (psf, "22", &(wav_fmt->gsm610.extrabytes), &(wav_fmt->gsm610.samplesperblock)) ;

				if (wav_fmt->gsm610.samplesperblock != 320)
					return SFE_WAV_GSM610_FORMAT ;

				bytespersec = (wav_fmt->gsm610.samplerate * wav_fmt->gsm610.blockalign) / wav_fmt->gsm610.samplesperblock ;
				if (wav_fmt->gsm610.bytespersec != (unsigned) bytespersec)
					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->gsm610.bytespersec, bytespersec) ;
				else
					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->gsm610.bytespersec) ;

				psf->bytewidth = 2 ;
				psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->gsm610.extrabytes) ;
				psf_log_printf (psf, "  Samples/Block : %d\n", wav_fmt->gsm610.samplesperblock) ;
				break ;

		case WAVE_FORMAT_EXTENSIBLE :
				if (wav_fmt->ext.bytespersec / wav_fmt->ext.blockalign != wav_fmt->ext.samplerate)
					psf_log_printf (psf, "  Bytes/sec     : %d (should be %d)\n", wav_fmt->ext.bytespersec, wav_fmt->ext.samplerate * wav_fmt->ext.blockalign) ;
				else
					psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->ext.bytespersec) ;

				bytesread +=
				psf_binheader_readf (psf, "224", &(wav_fmt->ext.extrabytes), &(wav_fmt->ext.validbits),
						&(wav_fmt->ext.channelmask)) ;

				psf_log_printf (psf, "  Valid Bits    : %d\n", wav_fmt->ext.validbits) ;
				psf_log_printf (psf, "  Channel Mask  : 0x%X\n", wav_fmt->ext.channelmask) ;

				bytesread +=
				psf_binheader_readf (psf, "422", &(wav_fmt->ext.esf.esf_field1), &(wav_fmt->ext.esf.esf_field2),
						&(wav_fmt->ext.esf.esf_field3)) ;

				/* compare the esf_fields with each known GUID? and print? */
				psf_log_printf (psf, "  Subformat\n") ;
				psf_log_printf (psf, "    esf_field1 : 0x%X\n", wav_fmt->ext.esf.esf_field1) ;
				psf_log_printf (psf, "    esf_field2 : 0x%X\n", wav_fmt->ext.esf.esf_field2) ;
				psf_log_printf (psf, "    esf_field3 : 0x%X\n", wav_fmt->ext.esf.esf_field3) ;
				psf_log_printf (psf, "    esf_field4 : ") ;
				for (k = 0 ; k < 8 ; k++)
				{	bytesread += psf_binheader_readf (psf, "1", &(wav_fmt->ext.esf.esf_field4 [k])) ;
					psf_log_printf (psf, "0x%X ", wav_fmt->ext.esf.esf_field4 [k] & 0xFF) ;
					} ;
				psf_log_printf (psf, "\n") ;
				psf->bytewidth = BITWIDTH2BYTES (wav_fmt->ext.bitwidth) ;

				/* Compare GUIDs for known ones. */
				if (wavex_write_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_PCM)
					|| wavex_write_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM))
				{	psf->sf.format = SF_FORMAT_WAVEX | u_bitwidth_to_subformat (psf->bytewidth * 8) ;
					psf_log_printf (psf, "    format : pcm\n") ;
					}
				else if (wavex_write_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_MS_ADPCM))
				{	psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_MS_ADPCM) ;
					psf_log_printf (psf, "    format : ms adpcm\n") ;
					}
				else if (wavex_write_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_IEEE_FLOAT)
						|| wavex_write_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_AMBISONIC_B_FORMAT_PCM))
				{	psf->sf.format = SF_FORMAT_WAVEX | ((psf->bytewidth == 8) ? SF_FORMAT_DOUBLE : SF_FORMAT_FLOAT) ;
					psf_log_printf (psf, "    format : IEEE float\n") ;
					}
				else if (wavex_write_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_ALAW))
				{	psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_ALAW) ;
					psf_log_printf (psf, "    format : A-law\n") ;
					}
				else if (wavex_write_guid_equal (&wav_fmt->ext.esf, &MSGUID_SUBTYPE_MULAW))
				{	psf->sf.format = (SF_FORMAT_WAVEX | SF_FORMAT_ULAW) ;
					psf_log_printf (psf, "    format : u-law\n") ;
					}
				else
					return SFE_UNIMPLEMENTED ;
				break ;

		case WAVE_FORMAT_G721_ADPCM :
				psf_log_printf (psf, "  Bytes/sec     : %d\n", wav_fmt->g72x.bytespersec) ;
				if (structsize >= 20)
				{	bytesread += psf_binheader_readf (psf, "22", &(wav_fmt->g72x.extrabytes), &(wav_fmt->g72x.auxblocksize)) ;
					if (wav_fmt->g72x.extrabytes == 0)
						psf_log_printf (psf, "  Extra Bytes   : %d (should be 2)\n", wav_fmt->g72x.extrabytes) ;
					else
						psf_log_printf (psf, "  Extra Bytes   : %d\n", wav_fmt->g72x.extrabytes) ;
						psf_log_printf (psf, "  Aux Blk Size  : %d\n", wav_fmt->g72x.auxblocksize) ;
					}
				else if (structsize == 18)
				{	bytesread += psf_binheader_readf (psf, "2", &(wav_fmt->g72x.extrabytes)) ;
					psf_log_printf (psf, "  Extra Bytes   : %d%s\n", wav_fmt->g72x.extrabytes, wav_fmt->g72x.extrabytes != 0 ? " (should be 0)" : "") ;
					}
				else
					psf_log_printf (psf, "*** 'fmt ' chunk should be bigger than this!\n") ;
				break ;

		default :
				psf_log_printf (psf, "*** No 'fmt ' chunk dumper for this format!\n") ;
				break ;
		} ;

	if (bytesread > structsize)
	{	psf_log_printf (psf, "*** wav_w64_read_fmt_chunk (bytesread > structsize)\n") ;
		return SFE_W64_FMT_SHORT ;
		}
	else
		psf_binheader_readf (psf, "j", structsize - bytesread) ;

	psf->blockwidth = wav_fmt->min.channels * psf->bytewidth ;

	return 0 ;
} /* wav_w64_read_fmt_chunk */

void
wavex_write_guid (SF_PRIVATE *psf, const EXT_SUBFORMAT * subformat)
{
	psf_binheader_writef (psf, "422b", subformat->esf_field1,
					subformat->esf_field2, subformat->esf_field3,
					subformat->esf_field4, make_size_t (8)) ;
} /* wavex_write_guid */


/*==============================================================================
*/

typedef struct
{	int			ID ;
	const char	*name ;
} WAV_FORMAT_DESC ;

#define STR(x)			#x
#define FORMAT_TYPE(x)	{ x, STR (x) }

static WAV_FORMAT_DESC wave_descs [] =
{	FORMAT_TYPE	(WAVE_FORMAT_PCM),
	FORMAT_TYPE (WAVE_FORMAT_MS_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_IEEE_FLOAT),
	FORMAT_TYPE (WAVE_FORMAT_VSELP),
	FORMAT_TYPE (WAVE_FORMAT_IBM_CVSD),
	FORMAT_TYPE (WAVE_FORMAT_ALAW),
	FORMAT_TYPE (WAVE_FORMAT_MULAW),
	FORMAT_TYPE (WAVE_FORMAT_OKI_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_IMA_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_MEDIASPACE_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_SIERRA_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_G723_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_DIGISTD),
	FORMAT_TYPE (WAVE_FORMAT_DIGIFIX),
	FORMAT_TYPE (WAVE_FORMAT_DIALOGIC_OKI_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_MEDIAVISION_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_CU_CODEC),
	FORMAT_TYPE (WAVE_FORMAT_YAMAHA_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_SONARC),
	FORMAT_TYPE (WAVE_FORMAT_DSPGROUP_TRUESPEECH),
	FORMAT_TYPE (WAVE_FORMAT_ECHOSC1),
	FORMAT_TYPE (WAVE_FORMAT_AUDIOFILE_AF36),
	FORMAT_TYPE (WAVE_FORMAT_APTX),
	FORMAT_TYPE (WAVE_FORMAT_AUDIOFILE_AF10),
	FORMAT_TYPE (WAVE_FORMAT_PROSODY_1612),
	FORMAT_TYPE (WAVE_FORMAT_LRC),
	FORMAT_TYPE (WAVE_FORMAT_DOLBY_AC2),
	FORMAT_TYPE (WAVE_FORMAT_GSM610),
	FORMAT_TYPE (WAVE_FORMAT_MSNAUDIO),
	FORMAT_TYPE (WAVE_FORMAT_ANTEX_ADPCME),
	FORMAT_TYPE (WAVE_FORMAT_CONTROL_RES_VQLPC),
	FORMAT_TYPE (WAVE_FORMAT_DIGIREAL),
	FORMAT_TYPE (WAVE_FORMAT_DIGIADPCM),
	FORMAT_TYPE (WAVE_FORMAT_CONTROL_RES_CR10),
	FORMAT_TYPE (WAVE_FORMAT_NMS_VBXADPCM),
	FORMAT_TYPE (WAVE_FORMAT_ROLAND_RDAC),
	FORMAT_TYPE (WAVE_FORMAT_ECHOSC3),
	FORMAT_TYPE (WAVE_FORMAT_ROCKWELL_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_ROCKWELL_DIGITALK),
	FORMAT_TYPE (WAVE_FORMAT_XEBEC),
	FORMAT_TYPE (WAVE_FORMAT_G721_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_G728_CELP),
	FORMAT_TYPE (WAVE_FORMAT_MSG723),
	FORMAT_TYPE (WAVE_FORMAT_MPEG),
	FORMAT_TYPE (WAVE_FORMAT_RT24),
	FORMAT_TYPE (WAVE_FORMAT_PAC),
	FORMAT_TYPE (WAVE_FORMAT_MPEGLAYER3),
	FORMAT_TYPE (WAVE_FORMAT_LUCENT_G723),
	FORMAT_TYPE (WAVE_FORMAT_CIRRUS),
	FORMAT_TYPE (WAVE_FORMAT_ESPCM),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE),
	FORMAT_TYPE (WAVE_FORMAT_CANOPUS_ATRAC),
	FORMAT_TYPE (WAVE_FORMAT_G726_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_G722_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_DSAT),
	FORMAT_TYPE (WAVE_FORMAT_DSAT_DISPLAY),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_BYTE_ALIGNED),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC8),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC10),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC16),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_AC20),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT24),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT29),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_RT29HW),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_VR12),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_VR18),
	FORMAT_TYPE (WAVE_FORMAT_VOXWARE_TQ40),
	FORMAT_TYPE (WAVE_FORMAT_SOFTSOUND),
	FORMAT_TYPE (WAVE_FORMAT_VOXARE_TQ60),
	FORMAT_TYPE (WAVE_FORMAT_MSRT24),
	FORMAT_TYPE (WAVE_FORMAT_G729A),
	FORMAT_TYPE (WAVE_FORMAT_MVI_MV12),
	FORMAT_TYPE (WAVE_FORMAT_DF_G726),
	FORMAT_TYPE (WAVE_FORMAT_DF_GSM610),
	FORMAT_TYPE (WAVE_FORMAT_ONLIVE),
	FORMAT_TYPE (WAVE_FORMAT_SBC24),
	FORMAT_TYPE (WAVE_FORMAT_DOLBY_AC3_SPDIF),
	FORMAT_TYPE (WAVE_FORMAT_ZYXEL_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_PHILIPS_LPCBB),
	FORMAT_TYPE (WAVE_FORMAT_PACKED),
	FORMAT_TYPE (WAVE_FORMAT_RHETOREX_ADPCM),
	FORMAT_TYPE (IBM_FORMAT_MULAW),
	FORMAT_TYPE (IBM_FORMAT_ALAW),
	FORMAT_TYPE (IBM_FORMAT_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_VIVO_G723),
	FORMAT_TYPE (WAVE_FORMAT_VIVO_SIREN),
	FORMAT_TYPE (WAVE_FORMAT_DIGITAL_G723),
	FORMAT_TYPE (WAVE_FORMAT_CREATIVE_ADPCM),
	FORMAT_TYPE (WAVE_FORMAT_CREATIVE_FASTSPEECH8),
	FORMAT_TYPE (WAVE_FORMAT_CREATIVE_FASTSPEECH10),
	FORMAT_TYPE (WAVE_FORMAT_QUARTERDECK),
	FORMAT_TYPE (WAVE_FORMAT_FM_TOWNS_SND),
	FORMAT_TYPE (WAVE_FORMAT_BZV_DIGITAL),
	FORMAT_TYPE (WAVE_FORMAT_VME_VMPCM),
	FORMAT_TYPE (WAVE_FORMAT_OLIGSM),
	FORMAT_TYPE (WAVE_FORMAT_OLIADPCM),
	FORMAT_TYPE (WAVE_FORMAT_OLICELP),
	FORMAT_TYPE (WAVE_FORMAT_OLISBC),
	FORMAT_TYPE (WAVE_FORMAT_OLIOPR),
	FORMAT_TYPE (WAVE_FORMAT_LH_CODEC),
	FORMAT_TYPE (WAVE_FORMAT_NORRIS),
	FORMAT_TYPE (WAVE_FORMAT_SOUNDSPACE_MUSICOMPRESS),
	FORMAT_TYPE (WAVE_FORMAT_DVM),
	FORMAT_TYPE (WAVE_FORMAT_INTERWAV_VSC112),
	FORMAT_TYPE (WAVE_FORMAT_IPP_ITU_G_723_1),
	FORMAT_TYPE (WAVE_FORMAT_EXTENSIBLE),
} ;

char const*
wav_w64_format_str (int k)
{	int lower, upper, mid ;

	lower = -1 ;
	upper = sizeof (wave_descs) / sizeof (WAV_FORMAT_DESC) ;

	/* binary search */
	if ((wave_descs [0].ID <= k) && (k <= wave_descs [upper - 1].ID))
	{
		while (lower + 1 < upper)
		{	mid = (upper + lower) / 2 ;

			if (k == wave_descs [mid].ID)
				return wave_descs [mid].name ;
			if (k < wave_descs [mid].ID)
				upper = mid ;
			else
				lower = mid ;
			} ;
		} ;

	return "Unknown format" ;
} /* wav_w64_format_str */

int
wav_w64_srate2blocksize (int srate_chan_product)
{	if (srate_chan_product < 12000)
		return 256 ;
	if (srate_chan_product < 23000)
		return 512 ;
	if (srate_chan_product < 44000)
		return 1024 ;
	return 2048 ;
} /* srate2blocksize */
/*
** Do not edit or modify anything in this comment block.
** The arch-tag line is a file identity tag for the GNU Arch
** revision control system.
**
** arch-tag: 43c1b1dd-8abd-43da-a8cd-44da914b64a5
*/
