mirror of https://github.com/mpv-player/mpv
70 lines
1.8 KiB
C
70 lines
1.8 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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#include "af.h"
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struct priv {
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double speed;
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};
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static int control(struct af_instance *af, int cmd, void *arg)
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{
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struct priv *priv = af->priv;
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switch (cmd) {
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case AF_CONTROL_REINIT: {
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struct mp_audio *in = arg;
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struct mp_audio orig_in = *in;
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struct mp_audio *out = af->data;
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mp_audio_copy_config(out, in);
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out->rate = in->rate * priv->speed;
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return mp_audio_config_equals(in, &orig_in) ? AF_OK : AF_FALSE;
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}
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case AF_CONTROL_SET_PLAYBACK_SPEED_RESAMPLE: {
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priv->speed = *(double *)arg;
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return AF_OK;
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}
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}
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return AF_UNKNOWN;
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}
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static int filter(struct af_instance *af, struct mp_audio *data, int flags)
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{
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mp_audio_copy_config(data, af->data);
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return 0;
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}
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static int af_open(struct af_instance *af)
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{
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struct priv *priv = af->priv;
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af->control = control;
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af->filter = filter;
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priv->speed = 1.0;
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return AF_OK;
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}
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#define OPT_BASE_STRUCT struct priv
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const struct af_info af_info_forcespeed = {
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.info = "Force audio speed",
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.name = "forcespeed",
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.open = af_open,
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.priv_size = sizeof(struct priv),
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};
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