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/*
* Copyright (C) 2017 "Audiokinetic Inc"
* Author Francois Thibault <fthibault@audiokinetic.com>
*
* 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
#include <stdio.h>
#include <string.h>
#include <json-c/json.h>
#include "wrap-json.h"
#include "ahl-binding.h"
extern AHLCtxT g_AHLCtx;
int ParseHLBConfig() {
char * versionStr = NULL;
json_object * jAudioRoles = NULL;
json_object * jHALList = NULL;
char * policyModule = NULL;
// TODO: This should be retrieve from binding startup arguments
char configfile_path[256];
sprintf(configfile_path, "%s/opt/config/ahl-config.json", getenv("HOME"));
AFB_INFO("High-level config file -> %s\n", configfile_path);
// Open configuration file
json_object *config_JFile=json_object_from_file(configfile_path);
if(config_JFile == NULL)
{
AFB_ERROR("Error: Can't open configuration file -> %s",configfile_path);
return 1;
}
int err = wrap_json_unpack(config_JFile, "{s:s,s:s,s:o,s:o}", "version", &versionStr,"policy_module", &policyModule,"audio_roles",&jAudioRoles,"hal_list",&jHALList);
if (err) {
AFB_ERROR("Invalid configuration file -> %s", configfile_path);
return 1;
}
AFB_INFO("Version: %s", versionStr);
AFB_INFO("Policy module: %s", policyModule);
int iHALListLength = json_object_array_length(jHALList);
int iNumberOfRoles = json_object_array_length(jAudioRoles);
g_AHLCtx.policyCtx.iNumberRoles = iNumberOfRoles;
// Dynamically allocated based on number or roles found
g_AHLCtx.pHALList = g_array_sized_new(FALSE, TRUE, sizeof(GString), iHALListLength);
g_AHLCtx.policyCtx.pRolePriority = g_hash_table_new(g_str_hash, g_str_equal);
g_AHLCtx.policyCtx.pAudioRoles = g_array_sized_new(FALSE, TRUE, sizeof(GString), iNumberOfRoles);
g_AHLCtx.policyCtx.pInterruptBehavior = g_array_sized_new(FALSE, TRUE, sizeof(int), iNumberOfRoles);
g_AHLCtx.policyCtx.pSourceEndpoints = g_ptr_array_sized_new(iNumberOfRoles);
g_AHLCtx.policyCtx.pSinkEndpoints = g_ptr_array_sized_new(iNumberOfRoles);
g_AHLCtx.policyCtx.pEventList = g_ptr_array_sized_new(iNumberOfRoles);
for (int i = 0; i < iHALListLength; i++)
{
char * pHAL = NULL;
json_object * jHAL = json_object_array_get_idx(jHALList,i);
pHAL = (char *)json_object_get_string(jHAL);
GString * gHALName = g_string_new( pHAL );
g_array_append_val( g_AHLCtx.pHALList, *gHALName );
// Set dependency on HAL
err = afb_daemon_require_api_v2(pHAL,1) ;
if( err != 0 )
{
AFB_ERROR("Audio high level API could not set dependenvy on API: %s",pHAL);
return 1;
}
}
for (int i = 0; i < iNumberOfRoles; i++)
{
int priority = 0;
json_object * jAudioRole = json_object_array_get_idx(jAudioRoles,i);
json_object * jOutputDevices = NULL;
json_object * jInputDevices = NULL;
json_object * jEvents = NULL;
char * pRoleName = NULL;
char * pInteruptBehavior = NULL;
int iNumOutDevices = 0;
int iNumInDevices = 0;
int iNumEvents = 0;
err = wrap_json_unpack(jAudioRole, "{s:s,s:i,s:s,s?o,s?o,s?o}",
"name", &pRoleName,
"priority",&priority,
"interupt_behavior",&pInteruptBehavior,
"output",&jOutputDevices,
"input",&jInputDevices,
"events",&jEvents
);
if (err) {
AFB_ERROR("Invalid audio role configuration : %s", json_object_to_json_string(jAudioRole));
return 1;
}
if (jOutputDevices)
iNumOutDevices = json_object_array_length(jOutputDevices);
if (jInputDevices)
iNumInDevices = json_object_array_length(jInputDevices);
if (jEvents)
iNumEvents = json_object_array_length(jEvents);
GString * gRoleName = g_string_new( pRoleName );
g_array_append_val( g_AHLCtx.policyCtx.pAudioRoles, *gRoleName );
g_hash_table_insert(g_AHLCtx.policyCtx.pRolePriority, pRoleName, GINT_TO_POINTER(priority));
// Map interupt behavior string to enum value
InterruptedBehaviorT interuptBehavior = AHL_INTERRUPTEDBEHAVIOR_CONTINUE;
if ( strcasecmp(pInteruptBehavior,AHL_INTERRUPTEDBEHAVIOR_CONTINUE_STR) == 0 ) {
interuptBehavior = AHL_INTERRUPTEDBEHAVIOR_CONTINUE;
}
else if ( strcasecmp(pInteruptBehavior,AHL_INTERRUPTEDBEHAVIOR_CANCEL_STR) == 0 ) {
interuptBehavior = AHL_INTERRUPTEDBEHAVIOR_CANCEL;
}
else if ( strcasecmp(pInteruptBehavior,AHL_INTERRUPTEDBEHAVIOR_PAUSE_STR) == 0 ) {
interuptBehavior = AHL_INTERRUPTEDBEHAVIOR_PAUSE;
}
else {
AFB_ERROR("Unknown interrupt behavior : %s", pInteruptBehavior);
return 1;
}
g_array_append_val(g_AHLCtx.policyCtx.pInterruptBehavior, interuptBehavior);
// Sources
GArray * pRoleSourceDeviceArray = g_array_new(FALSE, TRUE, sizeof(EndpointInfoT));
g_ptr_array_add(g_AHLCtx.policyCtx.pSourceEndpoints,pRoleSourceDeviceArray);
if (iNumInDevices) {
err = EnumerateSources(jInputDevices,i,pRoleName);
if (err) {
AFB_ERROR("Invalid input devices : %s", json_object_to_json_string(jInputDevices));
return 1;
}
}
// Sinks
GArray * pRoleSinkDeviceArray = g_array_new(FALSE, TRUE, sizeof(EndpointInfoT));
g_ptr_array_add(g_AHLCtx.policyCtx.pSinkEndpoints,pRoleSinkDeviceArray);
if (iNumOutDevices) {
err = EnumerateSinks(jOutputDevices,i,pRoleName);
if (err) {
AFB_ERROR("Invalid output devices : %s", json_object_to_json_string(jOutputDevices));
return 1;
}
}
// Events
GArray * pEventsArray = g_array_new(FALSE, TRUE, sizeof(GString));
g_ptr_array_add(g_AHLCtx.policyCtx.pEventList,pEventsArray);
// Parse and validate list of available events
for (int i = 0; i < iNumEvents; i++)
{
json_object * jEvent = json_object_array_get_idx(jEvents,i);
char * pEventName = (char *)json_object_get_string(jEvent);
GString * gsEventName = g_string_new(pEventName);
g_array_append_val(pEventsArray, *gsEventName);
}
}
// Build lists of all device URI referenced in config file (input/output)
AFB_DEBUG ("Audio high-level - Parse high-level audio configuration done");
return 0;
}
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