mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 00:02:13 +00:00
a0884c82a9
This function chooses the best match to a given samplerate from a provided list. This can be used, for example, by the ao to decide what samplerate to use for output.
84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
/*
|
|
* 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 <stddef.h>
|
|
#include <stdbool.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
|
|
};
|
|
|
|
const char *af_fmt_to_str(int format);
|
|
|
|
int af_fmt_to_bytes(int format);
|
|
int af_fmt_change_bytes(int format, int bytes);
|
|
|
|
bool af_fmt_is_valid(int format);
|
|
bool af_fmt_is_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);
|
|
bool af_fmt_is_pcm(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);
|
|
|
|
void af_fill_silence(void *dst, size_t bytes, int format);
|
|
|
|
void af_get_best_sample_formats(int src_format, int out_formats[AF_FORMAT_COUNT]);
|
|
int af_select_best_samplerate(int src_sampelrate, const int *available);
|
|
|
|
int af_format_sample_alignment(int format);
|
|
|
|
#endif /* MPLAYER_AF_FORMAT_H */
|