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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"
// TODO: Term() to free all allocs upon exit...
extern AHLCtxT g_AHLCtx;
PUBLIC int ParseHLBConfig() {
char * versionStr = NULL;
json_object * jAudioRoles = NULL;
json_object * jHALList = NULL;
json_object * jStateList = 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:o,s:o,s:o}", "version", &versionStr,"audio_roles",&jAudioRoles,"hal_list",&jHALList,"state_list",&jStateList);
if (err) {
AFB_ERROR("Invalid configuration file -> %s", configfile_path);
return 1;
}
// Parse and populate list of known states
g_AHLCtx.pDefaultStatesHT = g_hash_table_new(g_str_hash, g_str_equal);
int iStateListLength = json_object_array_length(jStateList);
for ( int i = 0; i < iStateListLength; i++)
{
char * pStateName = NULL;
char * pStateVal = NULL;
json_object * jStateobject = json_object_array_get_idx(jStateList,i);
err = wrap_json_unpack(jStateobject, "{s:s,s:s}", "name", &pStateName,"default_val",&pStateVal);
if (err) {
AFB_ERROR("Invalid state object -> %s", json_object_get_string(jStateobject));
return 1;
}
g_hash_table_insert(g_AHLCtx.pDefaultStatesHT, pStateName, pStateVal);
}
int iHALListLength = json_object_array_length(jHALList);
int iNumberOfRoles = json_object_array_length(jAudioRoles);
// 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_array_sized_new(FALSE, TRUE, sizeof(int), iNumberOfRoles);
g_AHLCtx.policyCtx.pAudioRoles = g_array_sized_new(FALSE, TRUE, sizeof(GString), iNumberOfRoles);
g_AHLCtx.policyCtx.pSourceEndpoints = g_ptr_array_sized_new(iNumberOfRoles);
g_AHLCtx.policyCtx.pSinkEndpoints = g_ptr_array_sized_new(iNumberOfRoles);
g_AHLCtx.policyCtx.iNumberRoles = iNumberOfRoles;
for (unsigned 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 (unsigned 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;
char * pRoleName = NULL;
int iNumOutDevices = 0;
int iNumInDevices = 0;
err = wrap_json_unpack(jAudioRole, "{s:s,s:i,s?o,s?o}", "name", &pRoleName,"priority",&priority,"output",&jOutputDevices,"input",&jInputDevices);
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);
GString * gRoleName = g_string_new( pRoleName );
g_array_append_val( g_AHLCtx.policyCtx.pAudioRoles, *gRoleName );
g_array_append_val( g_AHLCtx.policyCtx.pRolePriority, priority );
// 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;
}
}
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;
}
}
}
// 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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