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/*
* Copyright (C) 2018 "IoT.bzh"
* Author Fulup Ar Foll <fulup@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#define _GNU_SOURCE // needed for vasprintf
#include "alsa-softmixer.h"
#include <string.h>
PUBLIC AlsaSndCtlT *ApiSourceFindSubdev(SoftMixerT *mixer, const char *target) {
// search for subdev into every registered source
for (int idx = 0; mixer->sources[idx]; idx++) {
if (mixer->sources[idx]->uid && !strcasecmp(mixer->sources[idx]->uid, target)) {
return mixer->sources[idx]->sndcard;
}
}
return NULL;
}
PUBLIC int ApiSourceAttach(SoftMixerT *mixer, AFB_ReqT request, const char *uid, json_object * argsJ) {
int index;
for (index = 0; index < mixer->max.sources; index++) {
if (!mixer->sources[index]) break;
}
if (index == mixer->max.sources) {
AFB_ReqFailF(request, "too-small", "mixer=%s max source=%d", mixer->uid, mixer->max.sources);
goto OnErrorExit;
}
switch (json_object_get_type(argsJ)) {
long count;
case json_type_object:
mixer->sources[index] = ApiPcmAttachOne(mixer, uid, SND_PCM_STREAM_CAPTURE, argsJ);
if (!mixer->sources[index]) {
AFB_ReqFailF(request, "invalid-syntax", "mixer=%s invalid source= %s", mixer->uid, json_object_get_string(argsJ));
goto OnErrorExit;
}
break;
case json_type_array:
count = json_object_array_length(argsJ);
if (count > (mixer->max.sources - index)) {
AFB_ReqFailF(request, "too-small", "mixer=%s max source=%d", mixer->uid, mixer->max.sources);
goto OnErrorExit;
}
for (int idx = 0; idx < count; idx++) {
json_object *sourceJ = json_object_array_get_idx(argsJ, idx);
mixer->sources[index + idx] = ApiPcmAttachOne(mixer, uid, SND_PCM_STREAM_CAPTURE, sourceJ);
if (!mixer->sources[index + idx]) {
AFB_ReqFailF(request, "invalid-syntax", "mixer=%s invalid source= %s", mixer->uid, json_object_get_string(sourceJ));
goto OnErrorExit;
}
}
break;
default:
AFB_ReqFailF(request, "invalid-syntax", "mixer=%s sources invalid argsJ= %s", mixer->uid, json_object_get_string(argsJ));
goto OnErrorExit;
}
return 0;
OnErrorExit:
return -1;
}
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