mirror of
https://github.com/mpv-player/mpv
synced 2024-12-30 11:02:10 +00:00
31a10f7c38
In most places where af_fmt2bits is called to get the bits/sample, the result is immediately converted to bytes/sample. Avoid this by getting bytes/sample directly by introducing af_fmt2bps.
72 lines
2.8 KiB
C
72 lines
2.8 KiB
C
/*
|
|
* 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 MP_AUDIO_H
|
|
#define MP_AUDIO_H
|
|
|
|
#include "format.h"
|
|
#include "chmap.h"
|
|
|
|
// Audio data chunk
|
|
struct mp_audio {
|
|
int samples; // number of samples in data (per channel)
|
|
void *planes[MP_NUM_CHANNELS]; // data buffer (one per plane)
|
|
int rate; // sample rate
|
|
struct mp_chmap channels; // channel layout, use mp_audio_set_*() to set
|
|
int format; // format (AF_FORMAT_...), use mp_audio_set_format() to set
|
|
// Redundant fields, for convenience
|
|
int sstride; // distance between 2 samples in bytes on a plane
|
|
// interleaved: bps * nch
|
|
// planar: bps
|
|
int nch; // number of channels (redundant with chmap)
|
|
int spf; // sub-samples per sample on each plane
|
|
int num_planes; // number of planes
|
|
int bps; // size of sub-samples (af_fmt2bps(format))
|
|
|
|
// private
|
|
int allocated[MP_NUM_CHANNELS]; // use mp_audio_get_allocated_size()
|
|
};
|
|
|
|
void mp_audio_set_format(struct mp_audio *mpa, int format);
|
|
void mp_audio_set_num_channels(struct mp_audio *mpa, int num_channels);
|
|
void mp_audio_set_channels_old(struct mp_audio *mpa, int num_channels);
|
|
void mp_audio_set_channels(struct mp_audio *mpa, const struct mp_chmap *chmap);
|
|
void mp_audio_copy_config(struct mp_audio *dst, const struct mp_audio *src);
|
|
bool mp_audio_config_equals(const struct mp_audio *a, const struct mp_audio *b);
|
|
bool mp_audio_config_valid(const struct mp_audio *mpa);
|
|
|
|
char *mp_audio_fmt_to_str(int srate, const struct mp_chmap *chmap, int format);
|
|
char *mp_audio_config_to_str(struct mp_audio *mpa);
|
|
|
|
void mp_audio_force_interleaved_format(struct mp_audio *mpa);
|
|
|
|
int mp_audio_psize(struct mp_audio *mpa);
|
|
|
|
void mp_audio_set_null_data(struct mp_audio *mpa);
|
|
|
|
void mp_audio_realloc(struct mp_audio *mpa, int samples);
|
|
void mp_audio_realloc_min(struct mp_audio *mpa, int samples);
|
|
int mp_audio_get_allocated_size(struct mp_audio *mpa);
|
|
|
|
void mp_audio_fill_silence(struct mp_audio *mpa, int start, int length);
|
|
|
|
void mp_audio_copy(struct mp_audio *dst, int dst_offset,
|
|
struct mp_audio *src, int src_offset, int length);
|
|
void mp_audio_skip_samples(struct mp_audio *data, int samples);
|
|
|
|
#endif
|