mirror of
https://github.com/mpv-player/mpv
synced 2024-12-28 18:12:22 +00:00
5fd8a1e04c
This rewrites the audio decode loop to some degree. Audio filters don't do refcounted frames yet, so af.c contains a hacky "emulation". Remove some of the weird heuristic-heavy code in dec_audio.c. Instead of estimating how much audio we need to filter, we always filter full frames. Maybe this should be adjusted later: in case filtering increases the volume of the audio data, we should try not to buffer too much filter output by reducing the input that is fed at once. For ad_spdif.c and ad_mpg123.c, we don't avoid extra copying yet - it doesn't seem worth the trouble.
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer 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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* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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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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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, char *audio_decoders);
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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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