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https://github.com/mpv-player/mpv
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57048c7393
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.)
69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_DEC_AUDIO_H
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#define MPLAYER_DEC_AUDIO_H
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#include "audio/chmap.h"
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#include "audio/audio.h"
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#include "demux/demux.h"
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#include "demux/stheader.h"
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struct mp_audio_buffer;
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struct mp_decoder_list;
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struct dec_audio {
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struct mp_log *log;
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struct MPOpts *opts;
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struct mpv_global *global;
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bool spdif_passthrough;
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const struct ad_functions *ad_driver;
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struct sh_stream *header;
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struct af_stream *afilter;
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char *decoder_desc;
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int init_retries;
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struct mp_audio_pool *pool;
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struct mp_audio decode_format;
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struct mp_audio *waiting; // used on format-change
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// set by decoder
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int bitrate; // input bitrate, can change with VBR sources
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// last known pts value in output from decoder
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double pts;
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// number of samples output by decoder after last known pts
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int pts_offset;
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// For free use by the ad_driver
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void *priv;
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};
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enum {
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AD_OK = 0,
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AD_ERR = -1,
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AD_EOF = -2,
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AD_NEW_FMT = -3,
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AD_WAIT = -4,
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};
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struct mp_decoder_list *audio_decoder_list(void);
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int audio_init_best_codec(struct dec_audio *d_audio);
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int audio_decode(struct dec_audio *d_audio, struct mp_audio_buffer *outbuf,
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int minsamples);
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int initial_audio_decode(struct dec_audio *d_audio);
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void audio_reset_decoding(struct dec_audio *d_audio);
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void audio_uninit(struct dec_audio *d_audio);
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#endif /* MPLAYER_DEC_AUDIO_H */
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