mirror of
https://github.com/mpv-player/mpv
synced 2024-12-21 22:30:22 +00:00
74ab902dea
This is considered a worthless feature. Note that alaw/mulaw/adpcm input is unaffected: such data is handed to libavcodec and "decoded" to linear PCM.
132 lines
3.5 KiB
C
132 lines
3.5 KiB
C
/*
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* Copyright (C) 2005 Alex Beregszaszi
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include <limits.h>
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#include "audio/filter/af.h"
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int af_fmt2bits(int format)
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{
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if (AF_FORMAT_IS_AC3(format)) return 16;
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return (format & AF_FORMAT_BITS_MASK)+8;
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// return (((format & AF_FORMAT_BITS_MASK)>>3)+1) * 8;
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#if 0
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switch(format & AF_FORMAT_BITS_MASK)
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{
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case AF_FORMAT_8BIT: return 8;
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case AF_FORMAT_16BIT: return 16;
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case AF_FORMAT_24BIT: return 24;
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case AF_FORMAT_32BIT: return 32;
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case AF_FORMAT_48BIT: return 48;
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}
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#endif
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return -1;
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}
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int af_bits2fmt(int bits)
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{
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return (bits/8 - 1) << 3;
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}
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/* Convert format to str input str is a buffer for the
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converted string, size is the size of the buffer */
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char* af_fmt2str(int format, char* str, int size)
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{
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const char *name = af_fmt2str_short(format);
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if (name) {
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snprintf(str, size, "%s", name);
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} else {
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snprintf(str, size, "%#x", format);
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}
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return str;
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}
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const struct af_fmt_entry af_fmtstr_table[] = {
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{ "mpeg2", AF_FORMAT_MPEG2 },
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{ "ac3le", AF_FORMAT_AC3_LE },
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{ "ac3be", AF_FORMAT_AC3_BE },
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{ "ac3ne", AF_FORMAT_AC3_NE },
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{ "iec61937le", AF_FORMAT_IEC61937_LE },
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{ "iec61937be", AF_FORMAT_IEC61937_BE },
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{ "iec61937ne", AF_FORMAT_IEC61937_NE },
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{ "u8", AF_FORMAT_U8 },
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{ "s8", AF_FORMAT_S8 },
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{ "u16le", AF_FORMAT_U16_LE },
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{ "u16be", AF_FORMAT_U16_BE },
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{ "u16ne", AF_FORMAT_U16_NE },
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{ "s16le", AF_FORMAT_S16_LE },
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{ "s16be", AF_FORMAT_S16_BE },
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{ "s16ne", AF_FORMAT_S16_NE },
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{ "u24le", AF_FORMAT_U24_LE },
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{ "u24be", AF_FORMAT_U24_BE },
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{ "u24ne", AF_FORMAT_U24_NE },
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{ "s24le", AF_FORMAT_S24_LE },
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{ "s24be", AF_FORMAT_S24_BE },
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{ "s24ne", AF_FORMAT_S24_NE },
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{ "u32le", AF_FORMAT_U32_LE },
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{ "u32be", AF_FORMAT_U32_BE },
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{ "u32ne", AF_FORMAT_U32_NE },
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{ "s32le", AF_FORMAT_S32_LE },
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{ "s32be", AF_FORMAT_S32_BE },
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{ "s32ne", AF_FORMAT_S32_NE },
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{ "floatle", AF_FORMAT_FLOAT_LE },
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{ "floatbe", AF_FORMAT_FLOAT_BE },
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{ "floatne", AF_FORMAT_FLOAT_NE },
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{0}
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};
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const char *af_fmt2str_short(int format)
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{
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int i;
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for (i = 0; af_fmtstr_table[i].name; i++)
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if (af_fmtstr_table[i].format == format)
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return af_fmtstr_table[i].name;
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return "??";
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}
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static bool af_fmt_valid(int format)
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{
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return (format & AF_FORMAT_MASK) == format;
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}
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int af_str2fmt_short(bstr str)
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{
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if (bstr_startswith0(str, "0x")) {
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bstr rest;
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int fmt = bstrtoll(str, &rest, 16);
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if (rest.len == 0 && af_fmt_valid(fmt))
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return fmt;
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}
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for (int i = 0; af_fmtstr_table[i].name; i++)
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if (!bstrcasecmp0(str, af_fmtstr_table[i].name))
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return af_fmtstr_table[i].format;
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return -1;
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}
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