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mpv/audio/decode/dec_audio.h
wm4 57048c7393 audio: add --audio-spdif as new method for enabling passthrough
This provides a new method for enabling spdif passthrough. The old
method via --ad (--ad=spdif:ac3 etc.) is deprecated. The deprecated
method will probably stop working at some point.

This also supports PCM fallback. One caveat is that it will lose at
least 1 audio packet in doing so. (I don't care enough to prevent this.)

(This is named after the old S/PDIF connector, because it uses the same
underlying technology as far as the higher level protoco is concerned.
Also, the user should be renamed that passthrough is backwards.)
2015-06-05 22:42:59 +02:00

69 lines
2.0 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 MPLAYER_DEC_AUDIO_H
#define MPLAYER_DEC_AUDIO_H
#include "audio/chmap.h"
#include "audio/audio.h"
#include "demux/demux.h"
#include "demux/stheader.h"
struct mp_audio_buffer;
struct mp_decoder_list;
struct dec_audio {
struct mp_log *log;
struct MPOpts *opts;
struct mpv_global *global;
bool spdif_passthrough;
const struct ad_functions *ad_driver;
struct sh_stream *header;
struct af_stream *afilter;
char *decoder_desc;
int init_retries;
struct mp_audio_pool *pool;
struct mp_audio decode_format;
struct mp_audio *waiting; // used on format-change
// set by decoder
int bitrate; // input bitrate, can change with VBR sources
// last known pts value in output from decoder
double pts;
// number of samples output by decoder after last known pts
int pts_offset;
// For free use by the ad_driver
void *priv;
};
enum {
AD_OK = 0,
AD_ERR = -1,
AD_EOF = -2,
AD_NEW_FMT = -3,
AD_WAIT = -4,
};
struct mp_decoder_list *audio_decoder_list(void);
int audio_init_best_codec(struct dec_audio *d_audio);
int audio_decode(struct dec_audio *d_audio, struct mp_audio_buffer *outbuf,
int minsamples);
int initial_audio_decode(struct dec_audio *d_audio);
void audio_reset_decoding(struct dec_audio *d_audio);
void audio_uninit(struct dec_audio *d_audio);
#endif /* MPLAYER_DEC_AUDIO_H */