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-rw-r--r--audio/filter/af_volume.c188
1 files changed, 0 insertions, 188 deletions
diff --git a/audio/filter/af_volume.c b/audio/filter/af_volume.c
deleted file mode 100644
index 8fffc08853..0000000000
--- a/audio/filter/af_volume.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
- * Copyright (C)2002 Anders Johansson ajh@atri.curtin.edu.au
- *
- * 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 <limits.h>
-
-#include "common/common.h"
-#include "af.h"
-#include "demux/demux.h"
-
-struct priv {
- float level; // User-specified gain level for each channel
- float rgain; // Replaygain level
- int rgain_track; // Enable/disable track based replaygain
- int rgain_album; // Enable/disable album based replaygain
- float rgain_preamp; // Set replaygain pre-amplification
- int rgain_clip; // Enable/disable clipping prevention
- float replaygain_fallback;
- int soft; // Enable/disable soft clipping
- int fast; // Use fix-point volume control
- int detach; // Detach if gain volume is neutral
- float cfg_volume;
- int warn;
-};
-
-// Convert to gain value from dB. input <= -200dB will become 0 gain.
-static float from_dB(float in, float k, float mi, float ma)
-{
- if (in <= -200)
- return 0.0;
- return pow(10.0, MPCLAMP(in, mi, ma) / k);
-}
-
-static int control(struct af_instance *af, int cmd, void *arg)
-{
- struct priv *s = af->priv;
-
- switch (cmd) {
- case AF_CONTROL_REINIT: {
- struct mp_audio *in = arg;
-
- mp_audio_copy_config(af->data, in);
- mp_audio_force_interleaved_format(af->data);
-
- if (s->fast && af_fmt_from_planar(in->format) != AF_FORMAT_FLOAT) {
- mp_audio_set_format(af->data, AF_FORMAT_S16);
- } else {
- mp_audio_set_format(af->data, AF_FORMAT_FLOAT);
- }
- if (af_fmt_is_planar(in->format))
- mp_audio_set_format(af->data, af_fmt_to_planar(af->data->format));
- s->rgain = 1.0;
- struct replaygain_data *rg = af->replaygain_data;
- if ((s->rgain_track || s->rgain_album) && rg) {
- MP_VERBOSE(af, "Replaygain: Track=%f/%f Album=%f/%f\n",
- rg->track_gain, rg->track_peak,
- rg->album_gain, rg->album_peak);
-
- float gain, peak;
- if (s->rgain_track) {
- gain = rg->track_gain;
- peak = rg->track_peak;
- } else {
- gain = rg->album_gain;
- peak = rg->album_peak;
- }
-
- gain += s->rgain_preamp;
- s->rgain = from_dB(gain, 20.0, -200.0, 60.0);
-
- MP_VERBOSE(af, "Applying replay-gain: %f\n", s->rgain);
-
- if (!s->rgain_clip) { // clipping prevention
- s->rgain = MPMIN(s->rgain, 1.0 / peak);
- MP_VERBOSE(af, "...with clipping prevention: %f\n", s->rgain);
- }
- } else if (s->replaygain_fallback) {
- s->rgain = from_dB(s->replaygain_fallback, 20.0, -200.0, 60.0);
- MP_VERBOSE(af, "Applying fallback gain: %f\n", s->rgain);
- }
- if (s->detach && fabs(s->level * s->rgain - 1.0) < 0.00001)
- return AF_DETACH;
- return af_test_output(af, in);
- }
- case AF_CONTROL_SET_VOLUME:
- s->level = *(float *)arg;
- MP_VERBOSE(af, "volume gain: %f\n", s->level);
- return AF_OK;
- }
- return AF_UNKNOWN;
-}
-
-static void filter_plane(struct af_instance *af, struct mp_audio *data, int p)
-{
- struct priv *s = af->priv;
-
- float level = s->level * s->rgain * from_dB(s->cfg_volume, 20.0, -200.0, 60.0);
- int num_samples = data->samples * data->spf;
-
- if (af_fmt_from_planar(af->data->format) == AF_FORMAT_S16) {
- int vol = 256.0 * level;
- if (vol != 256) {
- if (af_make_writeable(af, data) < 0)
- return; // oom
- int16_t *a = data->planes[p];
- for (int i = 0; i < num_samples; i++) {
- int x = (a[i] * vol) >> 8;
- a[i] = MPCLAMP(x, SHRT_MIN, SHRT_MAX);
- }
- }
- } else if (af_fmt_from_planar(af->data->format) == AF_FORMAT_FLOAT) {
- float vol = level;
- if (vol != 1.0) {
- if (af_make_writeable(af, data) < 0)
- return; // oom
- float *a = data->planes[p];
- for (int i = 0; i < num_samples; i++) {
- float x = a[i] * vol;
- a[i] = s->soft ? af_softclip(x) : MPCLAMP(x, -1.0, 1.0);
- }
- }
- }
-}
-
-static int filter(struct af_instance *af, struct mp_audio *data)
-{
- if (data) {
- for (int n = 0; n < data->num_planes; n++)
- filter_plane(af, data, n);
- af_add_output_frame(af, data);
- }
- return 0;
-}
-
-static int af_open(struct af_instance *af)
-{
- struct priv *s = af->priv;
- if (s->warn)
- MP_WARN(af, "This filter is deprecated. Use --volume directly.\n");
- af->control = control;
- af->filter_frame = filter;
- s->level = 1.0;
- return AF_OK;
-}
-
-#define OPT_BASE_STRUCT struct priv
-
-// Description of this filter
-const struct af_info af_info_volume = {
- .info = "Volume control audio filter",
- .name = "volume",
- .open = af_open,
- .priv_size = sizeof(struct priv),
- .options = (const struct m_option[]) {
- OPT_FLOATRANGE("volumedb", cfg_volume, 0, -200, 60),
- OPT_FLAG("replaygain-track", rgain_track, 0),
- OPT_FLAG("replaygain-album", rgain_album, 0),
- OPT_FLOATRANGE("replaygain-preamp", rgain_preamp, 0, -15, 15),
- OPT_FLAG("replaygain-clip", rgain_clip, 0),
- OPT_FLOATRANGE("replaygain-fallback", replaygain_fallback, 0, -200, 60),
- OPT_FLAG("softclip", soft, 0),
- OPT_FLAG("s16", fast, 0),
- OPT_FLAG("detach", detach, 0),
- OPT_FLAG("warn", warn, 0, OPTDEF_INT(1)),
- {0}
- },
-};
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