mirror of https://github.com/mpv-player/mpv
142 lines
3.6 KiB
C
142 lines
3.6 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 <stdlib.h>
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#include <libavutil/common.h>
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#include "mpvcore/m_option.h"
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#include "audio/format.h"
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#include "af.h"
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struct priv {
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struct m_config *config;
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int in_format;
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int in_srate;
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struct mp_chmap in_channels;
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int out_format;
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int out_srate;
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struct mp_chmap out_channels;
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int fail;
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struct mp_audio data;
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struct mp_audio temp;
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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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if (priv->in_format != AF_FORMAT_UNKNOWN)
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mp_audio_set_format(in, priv->in_format);
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if (priv->in_channels.num)
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mp_audio_set_channels(in, &priv->in_channels);
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if (priv->in_srate)
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in->rate = priv->in_srate;
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mp_audio_copy_config(out, in);
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if (priv->out_format != AF_FORMAT_UNKNOWN)
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mp_audio_set_format(out, priv->out_format);
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if (priv->out_channels.num)
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mp_audio_set_channels(out, &priv->out_channels);
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if (priv->out_srate)
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out->rate = priv->out_srate;
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if (in->nch != out->nch || in->bps != out->bps) {
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mp_msg(MSGT_AFILTER, MSGL_ERR,
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"[af_force] Forced input/output formats are incompatible.\n");
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return AF_ERROR;
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}
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if (priv->fail) {
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mp_msg(MSGT_AFILTER, MSGL_ERR, "[af_force] Failing on purpose.\n");
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return AF_ERROR;
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}
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return mp_audio_config_equals(in, &orig_in) ? AF_OK : AF_FALSE;
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}
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}
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return AF_UNKNOWN;
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}
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static struct mp_audio *play(struct af_instance *af, struct mp_audio *data)
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{
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struct priv *priv = af->priv;
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struct mp_audio *r = &priv->temp;
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*r = *af->data;
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r->audio = data->audio;
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r->len = data->len;
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return r;
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}
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static void uninit(struct af_instance *af)
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{
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}
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static int af_open(struct af_instance *af)
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{
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af->control = control;
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af->uninit = uninit;
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af->play = play;
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af->mul = 1;
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struct priv *priv = af->priv;
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af->data = &priv->data;
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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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struct af_info af_info_force = {
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"Force audio format",
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"force",
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"",
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"",
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0,
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af_open,
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.priv_size = sizeof(struct priv),
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.priv_defaults = &(const struct priv) {
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.in_format = AF_FORMAT_UNKNOWN,
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.out_format = AF_FORMAT_UNKNOWN,
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},
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.options = (const struct m_option[]) {
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OPT_AUDIOFORMAT("format", in_format, 0),
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OPT_INTRANGE("srate", in_srate, 0, 1000, 8*48000),
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OPT_CHMAP("channels", in_channels, CONF_MIN, .min = 0),
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OPT_AUDIOFORMAT("out-format", out_format, 0),
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OPT_INTRANGE("out-srate", out_srate, 0, 1000, 8*48000),
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OPT_CHMAP("out-channels", out_channels, CONF_MIN, .min = 0),
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OPT_FLAG("fail", fail, 0),
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{0}
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},
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};
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