summaryrefslogtreecommitdiffstats
path: root/audio/filter/af_channels.c
diff options
context:
space:
mode:
Diffstat (limited to 'audio/filter/af_channels.c')
-rw-r--r--audio/filter/af_channels.c255
1 files changed, 0 insertions, 255 deletions
diff --git a/audio/filter/af_channels.c b/audio/filter/af_channels.c
deleted file mode 100644
index 7cd7810d08..0000000000
--- a/audio/filter/af_channels.c
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
- * Audio filter that adds and removes channels, according to the
- * command line parameter channels. It is stupid and can only add
- * silence or copy channels, not mix or filter.
- *
- * Original author: Anders
- *
- * 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 "common/common.h"
-#include "af.h"
-
-#define FR 0
-#define TO 1
-
-typedef struct af_channels_s{
- int route[AF_NCH][2];
- int nch, nr;
- int router;
- char *routes;
-}af_channels_t;
-
-// Local function for copying data
-static void copy(struct af_instance *af, void* in, void* out,
- int ins, int inos,int outs, int outos, int len, int bps)
-{
- switch(bps){
- case 1:{
- int8_t* tin = (int8_t*)in;
- int8_t* tout = (int8_t*)out;
- tin += inos;
- tout += outos;
- len = len/ins;
- while(len--){
- *tout=*tin;
- tin +=ins;
- tout+=outs;
- }
- break;
- }
- case 2:{
- int16_t* tin = (int16_t*)in;
- int16_t* tout = (int16_t*)out;
- tin += inos;
- tout += outos;
- len = len/(2*ins);
- while(len--){
- *tout=*tin;
- tin +=ins;
- tout+=outs;
- }
- break;
- }
- case 3:{
- int8_t* tin = (int8_t*)in;
- int8_t* tout = (int8_t*)out;
- tin += 3 * inos;
- tout += 3 * outos;
- len = len / ( 3 * ins);
- while (len--) {
- tout[0] = tin[0];
- tout[1] = tin[1];
- tout[2] = tin[2];
- tin += 3 * ins;
- tout += 3 * outs;
- }
- break;
- }
- case 4:{
- int32_t* tin = (int32_t*)in;
- int32_t* tout = (int32_t*)out;
- tin += inos;
- tout += outos;
- len = len/(4*ins);
- while(len--){
- *tout=*tin;
- tin +=ins;
- tout+=outs;
- }
- break;
- }
- case 8:{
- int64_t* tin = (int64_t*)in;
- int64_t* tout = (int64_t*)out;
- tin += inos;
- tout += outos;
- len = len/(8*ins);
- while(len--){
- *tout=*tin;
- tin +=ins;
- tout+=outs;
- }
- break;
- }
- default:
- MP_ERR(af, "Unsupported number of bytes/sample: %i"
- " please report this error on the MPlayer mailing list. \n",bps);
- }
-}
-
-// Make sure the routes are sane
-static int check_routes(struct af_instance *af, int nin, int nout)
-{
- af_channels_t* s = af->priv;
- int i;
- if((s->nr < 1) || (s->nr > AF_NCH)){
- MP_ERR(af, "The number of routing pairs must be"
- " between 1 and %i. Current value is %i\n",AF_NCH,s->nr);
- return AF_ERROR;
- }
-
- for(i=0;i<s->nr;i++){
- if((s->route[i][FR] >= nin) || (s->route[i][TO] >= nout)){
- MP_ERR(af, "Invalid routing in pair nr. %i.\n", i);
- return AF_ERROR;
- }
- }
- return AF_OK;
-}
-
-// Initialization and runtime control
-static int control(struct af_instance* af, int cmd, void* arg)
-{
- af_channels_t* s = af->priv;
- switch(cmd){
- case AF_CONTROL_REINIT: ;
-
- struct mp_chmap chmap;
- mp_chmap_set_unknown(&chmap, s->nch);
- mp_audio_set_channels(af->data, &chmap);
-
- // Set default channel assignment
- if(!s->router){
- int i;
- // Make sure this filter isn't redundant
- if(af->data->nch == ((struct mp_audio*)arg)->nch)
- return AF_DETACH;
-
- // If mono: fake stereo
- if(((struct mp_audio*)arg)->nch == 1){
- s->nr = MPMIN(af->data->nch,2);
- for(i=0;i<s->nr;i++){
- s->route[i][FR] = 0;
- s->route[i][TO] = i;
- }
- }
- else{
- s->nr = MPMIN(af->data->nch, ((struct mp_audio*)arg)->nch);
- for(i=0;i<s->nr;i++){
- s->route[i][FR] = i;
- s->route[i][TO] = i;
- }
- }
- }
-
- af->data->rate = ((struct mp_audio*)arg)->rate;
- mp_audio_force_interleaved_format((struct mp_audio*)arg);
- mp_audio_set_format(af->data, ((struct mp_audio*)arg)->format);
- return check_routes(af,((struct mp_audio*)arg)->nch,af->data->nch);
- }
- return AF_UNKNOWN;
-}
-
-static int filter_frame(struct af_instance *af, struct mp_audio *c)
-{
- af_channels_t* s = af->priv;
- int i;
-
- if (!c)
- return 0;
-
- struct mp_audio *l = mp_audio_pool_get(af->out_pool, &af->fmt_out, c->samples);
- if (!l) {
- talloc_free(c);
- return -1;
- }
- mp_audio_copy_attributes(l, c);
-
- // Reset unused channels
- memset(l->planes[0],0,mp_audio_psize(c) / c->nch * l->nch);
-
- if(AF_OK == check_routes(af,c->nch,l->nch))
- for(i=0;i<s->nr;i++)
- copy(af, c->planes[0],l->planes[0],c->nch,s->route[i][FR],
- l->nch,s->route[i][TO],mp_audio_psize(c),c->bps);
-
- talloc_free(c);
- af_add_output_frame(af, l);
- return 0;
-}
-
-// Allocate memory and set function pointers
-static int af_open(struct af_instance* af){
- af->control=control;
- af->filter_frame = filter_frame;
- af_channels_t *s = af->priv;
-
- MP_WARN(af, "This filter is deprecated (no replacement).\n");
-
- // If router scan commandline for routing pairs
- if(s->routes && s->routes[0]){
- char* cp = s->routes;
- int ch = 0;
- // Scan for pairs on commandline
- do {
- int n = 0;
- if (ch >= AF_NCH) {
- MP_FATAL(af, "Can't have more than %d routes.\n", AF_NCH);
- return AF_ERROR;
- }
- sscanf(cp, "%i-%i%n" ,&s->route[ch][FR], &s->route[ch][TO], &n);
- MP_VERBOSE(af, "Routing from channel %i to"
- " channel %i\n",s->route[ch][FR],s->route[ch][TO]);
- cp = &cp[n];
- ch++;
- } while(*cp == ',' && *(cp++));
- s->nr = ch;
- if (s->nr > 0)
- s->router = 1;
- }
-
- return AF_OK;
-}
-
-#define OPT_BASE_STRUCT af_channels_t
-const struct af_info af_info_channels = {
- .info = "Insert or remove channels",
- .name = "channels",
- .open = af_open,
- .priv_size = sizeof(af_channels_t),
- .options = (const struct m_option[]) {
- OPT_INTRANGE("nch", nch, 0, 1, AF_NCH, OPTDEF_INT(2)),
- OPT_STRING("routes", routes, 0),
- {0}
- },
-};
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-28 01:02:04 +0000