diff options
Diffstat (limited to 'ahl-binding/ahl-config.c')
| -rw-r--r-- | ahl-binding/ahl-config.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/ahl-binding/ahl-config.c b/ahl-binding/ahl-config.c new file mode 100644 index 0000000..5e3de08 --- /dev/null +++ b/ahl-binding/ahl-config.c @@ -0,0 +1,178 @@ +/* + * 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; +} |