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/*
* Copyright (C) 2005 Alex Beregszaszi
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <limits.h>
#include "audio/filter/af.h"
int af_fmt2bits(int format)
{
if (AF_FORMAT_IS_AC3(format)) return 16;
if (format == AF_FORMAT_UNKNOWN)
return 0;
switch(format & AF_FORMAT_BITS_MASK)
{
case AF_FORMAT_8BIT: return 8;
case AF_FORMAT_16BIT: return 16;
case AF_FORMAT_24BIT: return 24;
case AF_FORMAT_32BIT: return 32;
case AF_FORMAT_64BIT: return 64;
}
return 0;
}
/* Convert format to str input str is a buffer for the
converted string, size is the size of the buffer */
char* af_fmt2str(int format, char* str, int size)
{
const char *name = af_fmt2str_short(format);
snprintf(str, size, "%s", name);
return str;
}
const struct af_fmt_entry af_fmtstr_table[] = {
{ "mpeg2", AF_FORMAT_MPEG2 },
{ "ac3le", AF_FORMAT_AC3_LE },
{ "ac3be", AF_FORMAT_AC3_BE },
{ "ac3ne", AF_FORMAT_AC3_NE },
{ "iec61937le", AF_FORMAT_IEC61937_LE },
{ "iec61937be", AF_FORMAT_IEC61937_BE },
{ "iec61937ne", AF_FORMAT_IEC61937_NE },
{ "u8", AF_FORMAT_U8 },
{ "s8", AF_FORMAT_S8 },
{ "u16le", AF_FORMAT_U16_LE },
{ "u16be", AF_FORMAT_U16_BE },
{ "u16ne", AF_FORMAT_U16_NE },
{ "s16le", AF_FORMAT_S16_LE },
{ "s16be", AF_FORMAT_S16_BE },
{ "s16ne", AF_FORMAT_S16_NE },
{ "u24le", AF_FORMAT_U24_LE },
{ "u24be", AF_FORMAT_U24_BE },
{ "u24ne", AF_FORMAT_U24_NE },
{ "s24le", AF_FORMAT_S24_LE },
{ "s24be", AF_FORMAT_S24_BE },
{ "s24ne", AF_FORMAT_S24_NE },
{ "u32le", AF_FORMAT_U32_LE },
{ "u32be", AF_FORMAT_U32_BE },
{ "u32ne", AF_FORMAT_U32_NE },
{ "s32le", AF_FORMAT_S32_LE },
{ "s32be", AF_FORMAT_S32_BE },
{ "s32ne", AF_FORMAT_S32_NE },
{ "floatle", AF_FORMAT_FLOAT_LE },
{ "floatbe", AF_FORMAT_FLOAT_BE },
{ "floatne", AF_FORMAT_FLOAT_NE },
{ "doublele", AF_FORMAT_DOUBLE_LE },
{ "doublebe", AF_FORMAT_DOUBLE_BE },
{ "doublene", AF_FORMAT_DOUBLE_NE },
{0}
};
const char *af_fmt2str_short(int format)
{
int i;
for (i = 0; af_fmtstr_table[i].name; i++)
if (af_fmtstr_table[i].format == format)
return af_fmtstr_table[i].name;
return "??";
}
int af_fmt_seconds_to_bytes(int format, float seconds, int channels, int samplerate)
{
int bps = (af_fmt2bits(format) / 8);
int framelen = channels * bps;
int bytes = seconds * bps * samplerate;
if (bytes % framelen)
bytes += framelen - (bytes % framelen);
return bytes;
}
int af_str2fmt_short(bstr str)
{
for (int i = 0; af_fmtstr_table[i].name; i++)
if (!bstrcasecmp0(str, af_fmtstr_table[i].name))
return af_fmtstr_table[i].format;
return 0;
}
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