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/*
* Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2013 Stefano Pigozzi <stefano.pigozzi@gmail.com>
*
* Based on Michael Niedermayer's lavcresample.
*
* 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/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <math.h>
#include <assert.h>
#include "common/common.h"
#include "config.h"
#include "common/av_common.h"
#include "common/msg.h"
#include "filters/f_swresample.h"
#include "filters/filter_internal.h"
#include "filters/user_filters.h"
#include "options/m_config.h"
#include "options/m_option.h"
#include "options/options.h"
struct af_resample {
int allow_detach;
struct mp_resample_opts opts;
int global_normalize;
};
static void set_defaults(struct mpv_global *global, void *p)
{
struct af_resample *s = p;
struct mp_resample_opts *opts = &s->opts;
struct mp_resample_opts *src_opts =
mp_get_config_group(s, global, &resample_conf);
s->global_normalize = src_opts->normalize;
assert(!opts->avopts); // we don't set a default value, so it must be NULL
*opts = *src_opts;
opts->avopts = NULL;
struct m_option dummy = {.type = &m_option_type_keyvalue_list};
m_option_copy(&dummy, &opts->avopts, &src_opts->avopts);
}
#define OPT_BASE_STRUCT struct af_resample
static struct mp_filter *af_lavrresample_create(struct mp_filter *parent,
void *options)
{
struct af_resample *s = options;
if (s->opts.normalize < 0)
s->opts.normalize = s->global_normalize;
struct mp_swresample *swr = mp_swresample_create(parent, &s->opts);
if (!swr)
abort();
MP_WARN(swr->f, "This filter is deprecated! Use the --audio-resample- options"
" to customize resampling, or the --af=aresample filter.\n");
talloc_free(s);
return swr->f;
}
const struct mp_user_filter_entry af_lavrresample = {
.desc = {
.description = "Sample frequency conversion using libavresample",
.name = "lavrresample",
.priv_size = sizeof(struct af_resample),
.priv_defaults = &(const struct af_resample) {
.opts = MP_RESAMPLE_OPTS_DEF,
.allow_detach = 1,
},
.options = (const struct m_option[]) {
OPT_INTRANGE("filter-size", opts.filter_size, 0, 0, 32),
OPT_INTRANGE("phase-shift", opts.phase_shift, 0, 0, 30),
OPT_FLAG("linear", opts.linear, 0),
OPT_DOUBLE("cutoff", opts.cutoff, M_OPT_RANGE, .min = 0, .max = 1),
OPT_FLAG("detach", allow_detach, 0), // does nothing
OPT_CHOICE("normalize", opts.normalize, 0,
({"no", 0}, {"yes", 1}, {"auto", -1})),
OPT_KEYVALUELIST("o", opts.avopts, 0),
{0}
},
.set_defaults = set_defaults,
},
.create = af_lavrresample_create,
};
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