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/********************************************************************
*
* Copyright (c) 2002 Artur Polaczynski (Ar't) All rights reserved.
* <artii@o2.pl> LGPL-2.1
* $ArtId: info_mac.h,v 1.6 2003/04/13 11:24:10 art Exp $
********************************************************************/
/*
* 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
*/
#ifndef INFO_MAC_H
#define INFO_MAC_H
/** \file info_mac.h
\brief Get information from MonkeyAudio file.
Usage:
\code
StreamInfoMac Info;
if (info_mac_read(fn, &Info)) {
printf("File \"%s\" not found or is read protected!\n", fn);
return;
}
printf("%",Info.fields...);
\endcode
*/
/**
\name Compression level
*/
/*\{*/
#define COMPRESSION_LEVEL_FAST 1000 /**< fast */
#define COMPRESSION_LEVEL_NORMAL 2000 /**< optimal average time/compression ratio */
#define COMPRESSION_LEVEL_HIGH 3000 /**< higher compression ratio */
#define COMPRESSION_LEVEL_EXTRA_HIGH 4000 /**< very slowly */
#define COMPRESSION_LEVEL_INSANE 5000 /**< ??? */
/*\}*/
/** All information from mac file
* \struct StreamInfoMac
**/
typedef struct
{
unsigned int ByteLength; /**< file length - tags size */
unsigned int FileSize; /**< real file size */
int SampleFreq; /**< sample frequency */
unsigned int Channels; /**< number of chanels */
int Duration; /**< duratiom in ms */
unsigned int Version; /**< version of current file */
unsigned int Bitrate; /**< bitrate of current file (bps) */
unsigned int Compresion; /**< compresion profile */
unsigned int Flags; /**< flags */
unsigned int Frames; /**< number of frames */
unsigned int SamplesPerFrame; /**< samples per frame */
unsigned int Samples; /**< number of samples */
unsigned int BitsPerSample; /**< bits per sample */
unsigned int UncompresedSize; /**< uncomprese size of file */
float CompresionRatio; /**< compresion ratio */
unsigned int PeakLevel; /**< peak level */
float PeakRatio; /**< peak ratio */
const char *CompresionName; /**< compresion profile as string */
unsigned int EncoderVersion; /**< version of encoder used */
} StreamInfoMac;
/**
Read all mac info from filename
\param fn File name
\param Info StreamInfoMac Structure for all information
\retval 0 ok
\retval 1 file not found or write protected
\retval 2 not monkey's audio file
*/
int
info_mac_read(const char *fn, StreamInfoMac * Info);
#endif /* INFO_MAC_H */
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