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-rw-r--r--audio/filter/af_sweep.c92
1 files changed, 0 insertions, 92 deletions
diff --git a/audio/filter/af_sweep.c b/audio/filter/af_sweep.c
deleted file mode 100644
index 5f338638ed..0000000000
--- a/audio/filter/af_sweep.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
- *
- * 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 "config.h"
-#include "af.h"
-
-typedef struct af_sweep_s{
- double x;
- double delta;
-}af_sweept;
-
-
-// Initialization and runtime control
-static int control(struct af_instance* af, int cmd, void* arg)
-{
- struct mp_audio *data= (struct mp_audio*)arg;
-
- switch(cmd){
- case AF_CONTROL_REINIT:
- mp_audio_copy_config(af->data, data);
- mp_audio_set_format(af->data, AF_FORMAT_S16);
-
- return af_test_output(af, data);
- }
- return AF_UNKNOWN;
-}
-
-static int filter_frame(struct af_instance *af, struct mp_audio *data)
-{
- if (!data)
- return 0;
- if (af_make_writeable(af, data) < 0) {
- talloc_free(data);
- return 0;
- }
-
- af_sweept *s = af->priv;
- int i, j;
- int16_t *in = (int16_t*)data->planes[0];
- int chans = data->nch;
- int in_len = data->samples;
-
- for(i=0; i<in_len; i++){
- for(j=0; j<chans; j++)
- in[i*chans+j]= 32000*sin(s->x*s->x);
- s->x += s->delta;
- if(2*s->x*s->delta >= 3.141592) s->x=0;
- }
-
- af_add_output_frame(af, data);
- return 0;
-}
-
-static int af_open(struct af_instance* af){
- af->control=control;
- af->filter_frame = filter_frame;
- return AF_OK;
-}
-
-#define OPT_BASE_STRUCT af_sweept
-const struct af_info af_info_sweep = {
- .info = "sine sweep",
- .name = "sweep",
- .open = af_open,
- .priv_size = sizeof(af_sweept),
- .options = (const struct m_option[]) {
- OPT_DOUBLE("delta", delta, 0),
- {0}
- },
-};