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Diffstat (limited to 'ahl-utilities/ahl-policy-utils.h')
| -rwxr-xr-x | ahl-utilities/ahl-policy-utils.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/ahl-utilities/ahl-policy-utils.h b/ahl-utilities/ahl-policy-utils.h new file mode 100755 index 0000000..3c20020 --- /dev/null +++ b/ahl-utilities/ahl-policy-utils.h @@ -0,0 +1,154 @@ +/* + * 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. + */ + +#ifndef AHL_POLICY_UTILS_INCLUDE +#define AHL_POLICY_UTILS_INCLUDE + +#include <json-c/json.h> + +#define AHL_POLICY_ACCEPT 1 +#define AHL_POLICY_REJECT 0 +#define AHL_POLICY_UTIL_SUCCESS 0 +#define AHL_POLICY_UTIL_FAIL 1 + +#define AHL_UNDEFINED -1 + +typedef int endpointID_t; +typedef int streamID_t; + +typedef enum StreamEvent { + STREAM_EVENT_START = 0, // Stream is inactive + STREAM_EVENT_STOP, // Stream is running + STREAM_EVENT_PAUSE, // Audio stream paused + STREAM_EVENT_RESUME, // Audio stream resumed + STREAM_EVENT_MUTED, // Audio stream muted + STREAM_EVENT_UNMUTED, // Audio stream unmuted + STREAM_EVENT_MAXVALUE // Enum count, keep at the end +} StreamEventT; + +typedef enum StreamMute { + STREAM_UNMUTED = 0, // Stream is not muted + STREAM_MUTED, // Stream is muted + STREAM_MUTE_MAXVALUE, // Enum count, keep at the end +} StreamMuteT; + +typedef enum EndpointType { + ENDPOINTTYPE_SOURCE = 0, // source devices + ENDPOINTTYPE_SINK, // sink devices + ENDPOINTTYPE_MAXVALUE // Enum count, keep at the end +} EndpointTypeT; + +typedef enum StreamState { + STREAM_STATE_IDLE = 0, // Stream is inactive + STREAM_STATE_RUNNING, // Stream is active and running + STREAM_STATE_PAUSED, // Stream is active but paused + STREAM_STATE_MAXVALUE // Enum count, keep at the end +} StreamStateT; + +// Define default behavior of audio role when interrupting lower priority sources +typedef enum InterruptBehavior { + INTERRUPTBEHAVIOR_CONTINUE = 0, // Continue to play lower priority source when interrupted (e.g. media may be ducked) + INTERRUPTBEHAVIOR_CANCEL, // Abort playback of lower priority source when interrupted (e.g. non-important HMI feedback that does not make sense later) + INTERRUPTBEHAVIOR_PAUSE, // Pause lower priority source when interrupted, to be resumed afterwards (e.g. non-temporal guidance) + INTERRUPTBEHAVIOR_MAXVALUE, // Enum count, keep at the end +} InterruptBehaviorT; + +typedef enum DeviceURIType { + DEVICEURITYPE_ALSA_HW = 0, // Alsa hardware device URI + DEVICEURITYPE_ALSA_DMIX, // Alsa Dmix device URI (only for playback devices) + DEVICEURITYPE_ALSA_DSNOOP, // Alsa DSnoop device URI (only for capture devices) + DEVICEURITYPE_ALSA_SOFTVOL, // Alsa softvol device URI + DEVICEURITYPE_ALSA_PLUG, // Alsa plug device URI + DEVICEURITYPE_ALSA_OTHER, // Alsa domain URI device of unspecified type + DEVICEURITYPE_NOT_ALSA, // Unknown (not ALSA domain) + DEVICEURITYPE_MAXVALUE // Enum count, keep at the end +} DeviceURITypeT; + +// CPU endianness assumed in all formats +typedef enum SampleType { + AHL_FORMAT_UNKNOWN = -1, // Unknown + AHL_FORMAT_U8 = 0, // Unsigned 8 bit + AHL_FORMAT_S16, // Signed 16 bit Little Endian + AHL_FORMAT_S24, // Signed 24 bit Little Endian using low three bytes in 32-bit word + AHL_FORMAT_S32, // Signed 32 bit Little Endian + AHL_FORMAT_FLOAT, // Float 32 bit Little Endian, Range -1.0 to 1.0 + AHL_FORMAT_FLOAT64, // Float 64 bit Little Endian, Range -1.0 to 1.0 + AHL_FORMAT_IEC958, // IEC-958 Little Endian (SPDIF) + AHL_FORMAT_MU_LAW, // Mu-Law + AHL_FORMAT_A_LAW, // A-Law + AHL_FORMAT_IMA_ADPCM, // Ima-ADPCM + AHL_FORMAT_MPEG, // MPEG + AHL_FORMAT_GSM, // GSM + AHL_FORMAT_G723, // G723 + AHL_FORMAT_DSD, // Direct stream digital + AHL_FORMAT_MAXVALUE, // Enum count, keep at the end +} SampleTypeT; + +typedef struct AudioFormat { + int sampleRate; // Sample rate + int numChannels; // Number of channels + SampleTypeT sampleType; // Sample type + // TODO: Interleaving? + // TODO: Sample sub format? +} AudioFormatT; + +typedef struct AlsaDeviceInfo { + int cardNum; // HW card number + int deviceNum; // HW device number + int subDeviceNum; // HW sub device number +} AlsaDeviceInfoT; + +typedef enum EndpointSelectionMode { + ENDPOINTSELMODE_AUTO = 0, // Automatic endpoint selection based on config priority + ENDPOINTSELMODE_MANUAL, // Explicit endpoint selection + ENDPOINTSELMODEMAXVALUE, // Enum count, keep at the end +} EndpointSelectionModeT; + +typedef struct EndPointInterfaceInfo { + endpointID_t endpointID; // Unique endpoint ID (per type) + EndpointTypeT type; // Source or sink device + char * gsDeviceName; // Unique device card name + char * gsDisplayName; // Application display name + char * gsDeviceURI; // Associated URI + char * gsDeviceDomain; // Device URI domain (e.g. alsa or pulse) + DeviceURITypeT deviceURIType; // Device URI type (includes audio domain information) + char * gsHALAPIName; // HAL associated with the device (for volume control) + char * pRoleName; // Role string identifier (from role config but could be programatically overriden later) + AlsaDeviceInfoT alsaInfo; // ALSA specific device information + AudioFormatT format; // Preferred audio format supported (later could be array of supported formats) + int iVolume; // Storage for current endpoint volume (policy effected). + json_object *pPropTableJ; //Property Table +} EndPointInterfaceInfoT; + +typedef struct StreamInterfaceInfo { + streamID_t streamID; // Stream unique ID + StreamStateT streamState; // Stream activity state + StreamMuteT streamMute; // Stream mute state + char * pRoleName; // Role string identifier (from role config but could be programatically overriden later) + int iPriority; // Role normalized priority (0-100) (from role config but could be programatically overriden later) + InterruptBehaviorT eInterruptBehavior; // Role behavior when interrupting lower priority streams (from role config but could be programatically overriden later) + EndPointInterfaceInfoT endpoint; +} StreamInterfaceInfoT; + +void Add_Endpoint_Property_Double( json_object * io_pPropertyArray, char * in_pPropertyName, double in_dPropertyValue); +void Add_Endpoint_Property_Int( json_object * io_pPropertyArray, char * in_pPropertyName, int in_iPropertyValue); +void Add_Endpoint_Property_String( json_object * io_pPropertyArray, char * in_pPropertyName, const char * in_pPropertyValue); +int F(EndPointInterfaceInfoT * pEndpoint, json_object **ppEndpointJ); +int JSONToEndpoint(json_object *pEndpointJ, EndPointInterfaceInfoT * pStream); +int StreamToJSON(StreamInterfaceInfoT * pPolicyStream, json_object **ppStreamJ); +int JSONToStream(json_object *pStreamJ, StreamInterfaceInfoT * pPolicyStream); + +#endif // AHL_POLICY_UTILS_INCLUDE |