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/*
* The sample format system used lin libaf is based on bitmasks.
* The format definition only refers to the storage format,
* not the resolution.
*
* 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.
*/
#ifndef MPLAYER_AF_FORMAT_H
#define MPLAYER_AF_FORMAT_H
#include <stdbool.h>
#include "misc/bstr.h"
// Signed/unsigned
#define AF_FORMAT_SI (0<<0) // Signed
#define AF_FORMAT_US (1<<0) // Unsigned
#define AF_FORMAT_SIGN_MASK (1<<0)
// Bits used
// Some code assumes they're sorted by size.
#define AF_FORMAT_8BIT (0<<1)
#define AF_FORMAT_16BIT (1<<1)
#define AF_FORMAT_24BIT (2<<1)
#define AF_FORMAT_32BIT (3<<1)
#define AF_FORMAT_64BIT (4<<1)
#define AF_FORMAT_BITS_MASK (7<<1)
// Fixed/floating point/special
#define AF_FORMAT_I (1<<4) // Int
#define AF_FORMAT_F (2<<4) // Foating point
#define AF_FORMAT_S (4<<4) // special (IEC61937)
#define AF_FORMAT_TYPE_MASK (7<<4)
// Interleaving (planar formats have data for each channel in separate planes)
#define AF_FORMAT_INTERLEAVED (0<<7) // must be 0
#define AF_FORMAT_PLANAR (1<<7)
#define AF_FORMAT_INTERLEAVING_MASK (1<<7)
#define AF_FORMAT_S_CODEC(n) ((n)<<8)
#define AF_FORMAT_S_CODEC_MASK (15 <<8) // 16 codecs max.
#define AF_FORMAT_MASK ((1<<12)-1)
#define AF_INTP (AF_FORMAT_I|AF_FORMAT_PLANAR)
#define AF_FLTP (AF_FORMAT_F|AF_FORMAT_PLANAR)
#define AF_FORMAT_S_(n) (AF_FORMAT_S_CODEC(n)|AF_FORMAT_S|AF_FORMAT_16BIT)
// actual sample formats
enum af_format {
AF_FORMAT_UNKNOWN = 0,
AF_FORMAT_U8 = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_8BIT),
AF_FORMAT_S8 = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_8BIT),
AF_FORMAT_U16 = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_16BIT),
AF_FORMAT_S16 = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_16BIT),
AF_FORMAT_U24 = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_24BIT),
AF_FORMAT_S24 = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_24BIT),
AF_FORMAT_U32 = (AF_FORMAT_I|AF_FORMAT_US|AF_FORMAT_32BIT),
AF_FORMAT_S32 = (AF_FORMAT_I|AF_FORMAT_SI|AF_FORMAT_32BIT),
AF_FORMAT_FLOAT = (AF_FORMAT_F|AF_FORMAT_32BIT),
AF_FORMAT_DOUBLE = (AF_FORMAT_F|AF_FORMAT_64BIT),
// Planar variants
AF_FORMAT_U8P = (AF_INTP|AF_FORMAT_US|AF_FORMAT_8BIT),
AF_FORMAT_S16P = (AF_INTP|AF_FORMAT_SI|AF_FORMAT_16BIT),
AF_FORMAT_S32P = (AF_INTP|AF_FORMAT_SI|AF_FORMAT_32BIT),
AF_FORMAT_FLOATP = (AF_FLTP|AF_FORMAT_32BIT),
AF_FORMAT_DOUBLEP = (AF_FLTP|AF_FORMAT_64BIT),
// All of these use IEC61937 framing, and otherwise pretend to be like PCM.
AF_FORMAT_S_AAC = AF_FORMAT_S_(0),
AF_FORMAT_S_AC3 = AF_FORMAT_S_(1),
AF_FORMAT_S_DTS = AF_FORMAT_S_(2),
AF_FORMAT_S_DTSHD = AF_FORMAT_S_(3),
AF_FORMAT_S_EAC3 = AF_FORMAT_S_(4),
AF_FORMAT_S_MP3 = AF_FORMAT_S_(5),
AF_FORMAT_S_TRUEHD = AF_FORMAT_S_(6),
};
#define AF_FORMAT_IS_IEC61937(f) (((f) & AF_FORMAT_TYPE_MASK) == AF_FORMAT_S)
#define AF_FORMAT_IS_SPECIAL(f) AF_FORMAT_IS_IEC61937(f)
struct af_fmt_entry {
const char *name;
int format;
};
extern const struct af_fmt_entry af_fmtstr_table[];
int af_str2fmt_short(bstr str);
const char *af_fmt_to_str(int format);
int af_fmt2bps(int format);
int af_fmt2bits(int format);
int af_fmt_change_bits(int format, int bits);
int af_fmt_to_planar(int format);
int af_fmt_from_planar(int format);
bool af_fmt_is_planar(int format);
// Amount of bytes that contain audio of the given duration, aligned to frames.
int af_fmt_seconds_to_bytes(int format, float seconds, int channels, int samplerate);
bool af_fmt_is_valid(int format);
void af_fill_silence(void *dst, size_t bytes, int format);
int af_format_conversion_score(int dst_format, int src_format);
#endif /* MPLAYER_AF_FORMAT_H */
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