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/*
* Copyright (C) 2017 "Audiokinetic Inc"
*
* 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;
static InterruptBehaviorT InterruptBehaviorToEnum(char * in_pInterruptBehaviorStr)
{
g_assert_nonnull(in_pInterruptBehaviorStr);
if (strcasecmp(in_pInterruptBehaviorStr,AHL_INTERRUPTBEHAVIOR_CONTINUE)==0) {
return INTERRUPTBEHAVIOR_CONTINUE;
}
else if (strcasecmp(in_pInterruptBehaviorStr,AHL_INTERRUPTBEHAVIOR_CANCEL)==0) {
return INTERRUPTBEHAVIOR_CANCEL;
}
else if (strcasecmp(in_pInterruptBehaviorStr,AHL_INTERRUPTBEHAVIOR_PAUSE)==0) {
return INTERRUPTBEHAVIOR_PAUSE;
}
else
return INTERRUPTBEHAVIOR_MAXVALUE;
}
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];
if(getenv("AHL_CONFIG_FILE") == NULL)
{
AFB_ERROR("Please Set Environnement Variable AHL_CONFIG_FILE");
return 1;
}
sprintf(configfile_path, "%s", getenv("AHL_CONFIG_FILE"));
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("High-level audio API version: %s", "1.0.0");
AFB_INFO("Config version: %s", versionStr);
AFB_INFO("Policy module: %s", policyModule);
int iHALListLength = json_object_array_length(jHALList);
g_AHLCtx.policyCtx.pHALList = g_ptr_array_new_with_free_func(g_free);
int iNumberOfRoles = json_object_array_length(jAudioRoles);
g_AHLCtx.policyCtx.pRoleInfo = g_hash_table_new(g_str_hash, g_str_equal);
for (int i = 0; i < iHALListLength; i++)
{
char * pHAL = NULL;
json_object * jHAL = json_object_array_get_idx(jHALList,i);
if (jHAL) {
pHAL = (char *)json_object_get_string(jHAL);
char * pHALName = g_strdup( pHAL );
g_ptr_array_add( g_AHLCtx.policyCtx.pHALList, pHALName );
// Set dependency on HAL specified
err = afb_daemon_require_api_v2(pHAL,1) ;
if( err != 0 )
{
AFB_ERROR("Audio high level API could not set dependency 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 * jActions = NULL;
char * pRoleName = NULL;
char * pInteruptBehavior = NULL;
int iNumOutDevices = 0;
int iNumInDevices = 0;
int iNumActions = 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,
"actions",&jActions
);
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 (jActions)
iNumActions = json_object_array_length(jActions);
RoleInfoT * pRoleInfo = (RoleInfoT*) malloc(sizeof(RoleInfoT));
memset(pRoleInfo,0,sizeof(RoleInfoT));
pRoleInfo->pRoleName = g_strdup( pRoleName );
pRoleInfo->iPriority = priority;
pRoleInfo->eInterruptBehavior = InterruptBehaviorToEnum(pInteruptBehavior);
// Actions
pRoleInfo->pActionList = g_ptr_array_new_with_free_func(g_free);
// Parse and validate list of available actions
for (int i = 0; i < iNumActions; i++)
{
json_object * jAction = json_object_array_get_idx(jActions,i);
char * pActionName = (char *)json_object_get_string(jAction);
if (pActionName)
g_ptr_array_add(pRoleInfo->pActionList, g_strdup(pActionName));
}
// Sources
pRoleInfo->pSourceEndpoints = g_ptr_array_new_with_free_func(g_free);
if (iNumInDevices) {
err = EnumerateDevices(jInputDevices,pRoleName,ENDPOINTTYPE_SOURCE,pRoleInfo->pSourceEndpoints);
if (err) {
AFB_ERROR("Invalid input devices : %s", json_object_to_json_string(jInputDevices));
return 1;
}
}
// Sinks
pRoleInfo->pSinkEndpoints = g_ptr_array_new_with_free_func(g_free);
if (iNumOutDevices) {
err = EnumerateDevices(jOutputDevices,pRoleName,ENDPOINTTYPE_SINK,pRoleInfo->pSinkEndpoints);
if (err) {
AFB_ERROR("Invalid output devices : %s", json_object_to_json_string(jOutputDevices));
return 1;
}
}
g_hash_table_insert(g_AHLCtx.policyCtx.pRoleInfo, pRoleInfo->pRoleName, pRoleInfo);
}
// 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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