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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 mpv.
*
* mpv 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.
*
* mpv 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 mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MPLAYER_AF_FORMAT_H
#define MPLAYER_AF_FORMAT_H
#include <stdbool.h>
#include "misc/bstr.h"
enum af_format {
AF_FORMAT_UNKNOWN = 0,
AF_FORMAT_U8,
AF_FORMAT_S16,
AF_FORMAT_S24,
AF_FORMAT_S32,
AF_FORMAT_FLOAT,
AF_FORMAT_DOUBLE,
// Planar variants
AF_FORMAT_U8P,
AF_FORMAT_S16P,
AF_FORMAT_S32P,
AF_FORMAT_FLOATP,
AF_FORMAT_DOUBLEP,
// All of these use IEC61937 framing, and otherwise pretend to be like PCM.
AF_FORMAT_S_AAC,
AF_FORMAT_S_AC3,
AF_FORMAT_S_DTS,
AF_FORMAT_S_DTSHD,
AF_FORMAT_S_EAC3,
AF_FORMAT_S_MP3,
AF_FORMAT_S_TRUEHD,
AF_FORMAT_COUNT
};
#define AF_FORMAT_IS_IEC61937(f) af_fmt_is_spdif(f)
#define AF_FORMAT_IS_SPECIAL(f) af_fmt_is_spdif(f)
#define AF_FORMAT_IS_FLOAT(f) af_fmt_is_float(f)
#define AF_FORMAT_IS_PLANAR(f) af_fmt_is_planar(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);
bool af_fmt_unsigned(int format);
bool af_fmt_is_float(int format);
bool af_fmt_is_int(int format);
bool af_fmt_is_planar(int format);
bool af_fmt_is_spdif(int format);
int af_fmt_to_planar(int format);
int af_fmt_from_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);
int af_format_sample_alignment(int format);
#endif /* MPLAYER_AF_FORMAT_H */
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