liblscp 1.0.0

Data Structures | Macros | Functions
client.c File Reference
`#include <locale.h>`
`#include "common.h"`
`#include <sys/time.h>`
`#include <sys/errno.h>`

## Data Structures
struct | _locale_t

## Macros
#define | LSCP_TIMEOUT_MSECS 500
#define | USE_GETADDRINFO 1

## Functions
const char * | lscp_client_package (void)
const char * | lscp_client_version (void)
const char * | lscp_client_build (void)
lscp_client_t * | lscp_client_create (const char *pszHost, int iPort, lscp_client_proc_t pfnCallback, void *pvData)
lscp_status_t | lscp_client_join (lscp_client_t *pClient)
lscp_status_t | lscp_client_destroy (lscp_client_t *pClient)
lscp_status_t | lscp_client_set_timeout (lscp_client_t *pClient, int iTimeout)
int | lscp_client_get_timeout (lscp_client_t *pClient)
bool | lscp_client_connection_lost (lscp_client_t *pClient)
lscp_status_t | lscp_client_query (lscp_client_t *pClient, const char *pszQuery)
const char * | lscp_client_get_result (lscp_client_t *pClient)
int | lscp_client_get_errno (lscp_client_t *pClient)
lscp_status_t | lscp_client_subscribe (lscp_client_t *pClient, lscp_event_t events)
lscp_status_t | lscp_client_unsubscribe (lscp_client_t *pClient, lscp_event_t events)
lscp_event_t | lscp_client_get_events (lscp_client_t *pClient)
lscp_status_t | lscp_load_instrument (lscp_client_t *pClient, const char *pszFileName, int iInstrIndex, int iSamplerChannel)
lscp_status_t | lscp_load_instrument_non_modal (lscp_client_t *pClient, const char *pszFileName, int iInstrIndex, int iSamplerChannel)
lscp_status_t | lscp_load_engine (lscp_client_t *pClient, const char *pszEngineName, int iSamplerChannel)
int | lscp_get_channels (lscp_client_t *pClient)
int * | lscp_list_channels (lscp_client_t *pClient)
int | lscp_add_channel (lscp_client_t *pClient)
lscp_status_t | lscp_remove_channel (lscp_client_t *pClient, int iSamplerChannel)
int | lscp_get_available_engines (lscp_client_t *pClient)
const char ** | lscp_list_available_engines (lscp_client_t *pClient)
lscp_engine_info_t * | lscp_get_engine_info (lscp_client_t *pClient, const char *pszEngineName)
lscp_channel_info_t * | lscp_get_channel_info (lscp_client_t *pClient, int iSamplerChannel)
int | lscp_get_channel_voice_count (lscp_client_t *pClient, int iSamplerChannel)
int | lscp_get_channel_stream_count (lscp_client_t *pClient, int iSamplerChannel)
int | lscp_get_channel_stream_usage (lscp_client_t *pClient, int iSamplerChannel)
lscp_buffer_fill_t * | lscp_get_channel_buffer_fill (lscp_client_t *pClient, lscp_usage_t usage_type, int iSamplerChannel)
lscp_status_t | lscp_set_channel_audio_type (lscp_client_t *pClient, int iSamplerChannel, const char *pszAudioDriver)
lscp_status_t | lscp_set_channel_audio_device (lscp_client_t *pClient, int iSamplerChannel, int iAudioDevice)
lscp_status_t | lscp_set_channel_audio_channel (lscp_client_t *pClient, int iSamplerChannel, int iAudioOut, int iAudioIn)
lscp_status_t | lscp_set_channel_midi_type (lscp_client_t *pClient, int iSamplerChannel, const char *pszMidiDriver)
lscp_status_t | lscp_set_channel_midi_device (lscp_client_t *pClient, int iSamplerChannel, int iMidiDevice)
lscp_status_t | lscp_set_channel_midi_port (lscp_client_t *pClient, int iSamplerChannel, int iMidiPort)
lscp_status_t | lscp_set_channel_midi_channel (lscp_client_t *pClient, int iSamplerChannel, int iMidiChannel)
lscp_status_t | lscp_set_channel_midi_map (lscp_client_t *pClient, int iSamplerChannel, int iMidiMap)
lscp_status_t | lscp_set_channel_volume (lscp_client_t *pClient, int iSamplerChannel, float fVolume)
lscp_status_t | lscp_set_channel_mute (lscp_client_t *pClient, int iSamplerChannel, int iMute)
lscp_status_t | lscp_set_channel_solo (lscp_client_t *pClient, int iSamplerChannel, int iSolo)
lscp_status_t | lscp_reset_channel (lscp_client_t *pClient, int iSamplerChannel)
lscp_status_t | lscp_reset_sampler (lscp_client_t *pClient)
lscp_server_info_t * | lscp_get_server_info (lscp_client_t *pClient)
int | lscp_get_total_voice_count (lscp_client_t *pClient)
int | lscp_get_total_voice_count_max (lscp_client_t *pClient)
float | lscp_get_volume (lscp_client_t *pClient)
lscp_status_t | lscp_set_volume (lscp_client_t *pClient, float fVolume)
int | lscp_get_voices (lscp_client_t *pClient)
lscp_status_t | lscp_set_voices (lscp_client_t *pClient, int iMaxVoices)
int | lscp_get_streams (lscp_client_t *pClient)
lscp_status_t | lscp_set_streams (lscp_client_t *pClient, int iMaxStreams)
int | lscp_create_fxsend (lscp_client_t *pClient, int iSamplerChannel, int iMidiController, const char *pszFxName)
lscp_status_t | lscp_destroy_fxsend (lscp_client_t *pClient, int iSamplerChannel, int iFxSend)
int | lscp_get_fxsends (lscp_client_t *pClient, int iSamplerChannel)
int * | lscp_list_fxsends (lscp_client_t *pClient, int iSamplerChannel)
lscp_fxsend_info_t * | lscp_get_fxsend_info (lscp_client_t *pClient, int iSamplerChannel, int iFxSend)
lscp_status_t | lscp_set_fxsend_name (lscp_client_t *pClient, int iSamplerChannel, int iFxSend, const char *pszFxName)
lscp_status_t | lscp_set_fxsend_audio_channel (lscp_client_t *pClient, int iSamplerChannel, int iFxSend, int iAudioSrc, int iAudioDst)
lscp_status_t | lscp_set_fxsend_midi_controller (lscp_client_t *pClient, int iSamplerChannel, int iFxSend, int iMidiController)
lscp_status_t | lscp_set_fxsend_level (lscp_client_t *pClient, int iSamplerChannel, int iFxSend, float fLevel)
int | lscp_add_midi_instrument_map (lscp_client_t *pClient, const char *pszMapName)
lscp_status_t | lscp_remove_midi_instrument_map (lscp_client_t *pClient, int iMidiMap)
int | lscp_get_midi_instrument_maps (lscp_client_t *pClient)
int * | lscp_list_midi_instrument_maps (lscp_client_t *pClient)
const char * | lscp_get_midi_instrument_map_name (lscp_client_t *pClient, int iMidiMap)
lscp_status_t | lscp_set_midi_instrument_map_name (lscp_client_t *pClient, int iMidiMap, const char *pszMapName)
lscp_status_t | lscp_map_midi_instrument (lscp_client_t *pClient, lscp_midi_instrument_t *pMidiInstr, const char *pszEngineName, const char *pszFileName, int iInstrIndex, float fVolume, lscp_load_mode_t load_mode, const char *pszName)
lscp_status_t | lscp_unmap_midi_instrument (lscp_client_t *pClient, lscp_midi_instrument_t *pMidiInstr)
int | lscp_get_midi_instruments (lscp_client_t *pClient, int iMidiMap)
lscp_midi_instrument_t * | lscp_list_midi_instruments (lscp_client_t *pClient, int iMidiMap)
lscp_midi_instrument_info_t * | lscp_get_midi_instrument_info (lscp_client_t *pClient, lscp_midi_instrument_t *pMidiInstr)
lscp_status_t | lscp_clear_midi_instruments (lscp_client_t *pClient, int iMidiMap)
lscp_status_t | lscp_edit_channel_instrument (lscp_client_t *pClient, int iSamplerChannel)

## Macro Definition Documentation

## ◆ LSCP_TIMEOUT_MSECS

#define LSCP_TIMEOUT_MSECS 500

## ◆ USE_GETADDRINFO

#define USE_GETADDRINFO 1

## Function Documentation

## ◆ lscp_add_channel()

int lscp_add_channel | ( | lscp_client_t * | pClient | ) |

Adding a new sampler channel: ADD CHANNEL

Parameters

  pClient | Pointer to client instance structure.

Returns
  The new sampler channel number identifier, or -1 in case of failure.

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_add_midi_instrument_map()

int lscp_add_midi_instrument_map | ( | lscp_client_t * | pClient,
|  | const char * | pszMapName
| ) |  |

Create a new MIDI instrument map: ADD MIDI_INSTRUMENT_MAP [<name>]

Parameters

  pClient | Pointer to client instance structure.
  pszMapName | MIDI instrument map name (optional)

Returns
  The new MIDI instrument map number identifier, or -1 in case of failure.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_clear_midi_instruments()

lscp_status_t lscp_clear_midi_instruments | ( | lscp_client_t * | pClient,
|  | int | iMidiMap
| ) |  |

Clear the MIDI instrumnet map: CLEAR MIDI_INSTRUMENTS ALL|<midi-map>

Parameters

  pClient | Pointer to client instance structure.
  iMidiMap | MIDI instrument map number, or LSCP_MIDI_MAP_ALL .

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, and lscp_client_query().

## ◆ lscp_client_build()

const char * lscp_client_build | ( | void |  | ) |

Retrieve the current client library build string.

References LSCP_BUILD.

## ◆ lscp_client_connection_lost()

bool lscp_client_connection_lost | ( | lscp_client_t * | pClient | ) |

Check whether connection to server is lost.

Parameters

  pClient | Pointer to client instance structure.

Returns
  `true` if client lost connection to server, `false` otherwise.

References lscp_client_get_errno().

## ◆ lscp_client_create()

lscp_client_t * lscp_client_create | ( | const char * | pszHost,
|  | int | iPort,
|  | lscp_client_proc_t | pfnCallback,
|  | void * | pvData
| ) |  |

Create a client instance, estabilishing a connection to a server hostname, which must be listening on the given port. A client callback function is also supplied for server notification event handling.

Parameters

  pszHost | Hostname of the linuxsampler listening server.
  iPort | Port number of the linuxsampler listening server.
  pfnCallback | Callback function to receive event notifications.
  pvData | User context opaque data, that will be passed to the callback function.

Returns
  The new client instance pointer if successfull, which shall be used on all subsequent client calls, NULL otherwise.

References closesocket, INVALID_SOCKET, lscp_cond_init, LSCP_EVENT_NONE, lscp_mutex_init, lscp_socket_agent_init(), lscp_socket_getopts(), lscp_socket_herror(), lscp_socket_perror(), LSCP_TIMEOUT_MSECS, and SOCKET_ERROR.

## ◆ lscp_client_destroy()

lscp_status_t lscp_client_destroy | ( | lscp_client_t * | pClient | ) |

Terminate and destroy a client instance.

Parameters

  pClient | Pointer to client instance structure.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References lscp_cond_destroy, LSCP_FAILED, lscp_mutex_destroy, lscp_mutex_lock, lscp_mutex_unlock, LSCP_OK, and lscp_socket_agent_free().

## ◆ lscp_client_get_errno()

int lscp_client_get_errno | ( | lscp_client_t * | pClient | ) |

Get the last error/warning number received.

Parameters

  pClient | Pointer to client instance structure.

Returns
  The numerical value of the last error or warning response code received.

Referenced by lscp_client_connection_lost().

## ◆ lscp_client_get_events()

lscp_event_t lscp_client_get_events | ( | lscp_client_t * | pClient | ) |

Getting current subscribed events.

Parameters

  pClient | Pointer to client instance structure.

Returns
  The current subscrived bit-wise OR'ed event flags.

References LSCP_EVENT_NONE.

## ◆ lscp_client_get_result()

const char * lscp_client_get_result | ( | lscp_client_t * | pClient | ) |

Get the last received result string. In case of error or warning, this is the text of the error or warning message issued.

Parameters

  pClient | Pointer to client instance structure.

Returns
  A pointer to the literal null-terminated result string as of the last command request.

Referenced by lscp_add_channel(), lscp_add_midi_instrument_map(), lscp_create_audio_device(), lscp_create_fxsend(), lscp_create_midi_device(), lscp_get_audio_devices(), lscp_get_available_audio_drivers(), lscp_get_available_engines(), lscp_get_available_midi_drivers(), lscp_get_channel_buffer_fill(), lscp_get_channel_stream_count(), lscp_get_channel_stream_usage(), lscp_get_channel_voice_count(), lscp_get_channels(), lscp_get_engine_info(), lscp_get_fxsends(), lscp_get_midi_devices(), lscp_get_midi_instrument_map_name(), lscp_get_midi_instrument_maps(), lscp_get_midi_instruments(), lscp_get_server_info(), lscp_get_streams(), lscp_get_total_voice_count(), lscp_get_total_voice_count_max(), lscp_get_voices(), lscp_list_audio_devices(), lscp_list_available_audio_drivers(), lscp_list_available_engines(), lscp_list_available_midi_drivers(), lscp_list_channels(), lscp_list_fxsends(), lscp_list_midi_devices(), lscp_list_midi_instrument_maps(), and lscp_list_midi_instruments().

## ◆ lscp_client_get_timeout()

int lscp_client_get_timeout | ( | lscp_client_t * | pClient | ) |

Get the client transaction timeout interval.

Parameters

  pClient | Pointer to client instance structure.

Returns
  The current timeout value milliseconds, -1 in case of failure.

## ◆ lscp_client_join()

lscp_status_t lscp_client_join | ( | lscp_client_t * | pClient | ) |

Wait for a client instance to terminate graciously.

Parameters

  pClient | Pointer to client instance structure.

References LSCP_FAILED, LSCP_OK, and lscp_socket_agent_join().

## ◆ lscp_client_package()

const char * lscp_client_package | ( | void |  | ) |

Retrieve the current client library version string.

References LSCP_PACKAGE.

## ◆ lscp_client_query()

lscp_status_t lscp_client_query | ( | lscp_client_t * | pClient,
|  | const char * | pszQuery
| ) |  |

Submit a command query line string to the server. The query string must be cr/lf and null terminated. Besides the return code, the specific server response to the command request is made available by the lscp_client_get_result and lscp_client_get_errno function calls.

Parameters

  pClient | Pointer to client instance structure.
  pszQuery | Command request line to be sent to server, must be cr/lf and null terminated.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_FAILED, lscp_mutex_lock, and lscp_mutex_unlock.

Referenced by lscp_clear_midi_instruments(), lscp_destroy_audio_device(), lscp_destroy_fxsend(), lscp_destroy_midi_device(), lscp_edit_channel_instrument(), lscp_load_engine(), lscp_load_instrument(), lscp_load_instrument_non_modal(), lscp_remove_channel(), lscp_remove_midi_instrument_map(), lscp_reset_channel(), lscp_reset_sampler(), lscp_set_audio_channel_param(), lscp_set_audio_device_param(), lscp_set_channel_audio_channel(), lscp_set_channel_audio_device(), lscp_set_channel_audio_type(), lscp_set_channel_midi_channel(), lscp_set_channel_midi_device(), lscp_set_channel_midi_map(), lscp_set_channel_midi_port(), lscp_set_channel_midi_type(), lscp_set_channel_mute(), lscp_set_channel_solo(), lscp_set_fxsend_audio_channel(), lscp_set_fxsend_midi_controller(), lscp_set_fxsend_name(), lscp_set_midi_device_param(), lscp_set_midi_instrument_map_name(), lscp_set_midi_port_param(), lscp_set_streams(), lscp_set_voices(), and lscp_unmap_midi_instrument().

## ◆ lscp_client_set_timeout()

lscp_status_t lscp_client_set_timeout | ( | lscp_client_t * | pClient,
|  | int | iTimeout
| ) |  |

Set the client transaction timeout interval.

Parameters

  pClient | Pointer to client instance structure.
  iTimeout | Transaction timeout in milliseconds.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_FAILED, and LSCP_OK.

## ◆ lscp_client_subscribe()

lscp_status_t lscp_client_subscribe | ( | lscp_client_t * | pClient,
|  | lscp_event_t | events
| ) |  |

Register frontend for receiving event messages by the sampler backend. Caution: since liblscp v0.5.5.4 you have to call lscp_client_subscribe() for each event you want to subscribe. That is the old bitflag approach was abondoned at this point. You can however still register all older events with one lscp_client_subscribe() call at once. Thus, the old behavior of this functions was not broken. Those older events are namely:

SUBSCRIBE CHANNEL_COUNT | VOICE_COUNT | STREAM_COUNT
| BUFFER_FILL | CHANNEL_INFO | TOTAL_VOICE_COUNT
| AUDIO_OUTPUT_DEVICE_COUNT | AUDIO_OUTPUT_DEVICE_INFO
| MIDI_INPUT_DEVICE_COUNT | MIDI_INPUT_DEVICE_INFO
| MIDI_INSTRUMENT_MAP_COUNT | MIDI_INSTRUMENT_MAP_INFO
| MIDI_INSTRUMENT_COUNT | MIDI_INSTRUMENT_INFO
| MISCELLANEOUS

The old events occupy the lower 16 bits (as bit flags), and all younger events enumerate the whole upper 16 bits range. The new, enumerated events are namely:

SUBSCRIBE CHANNEL_MIDI

Parameters

  pClient | Pointer to client instance structure.
  events | LSCP event to subscribe.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_EVENT_NONE, LSCP_FAILED, lscp_mutex_lock, and LSCP_OK.

## ◆ lscp_client_unsubscribe()

lscp_status_t lscp_client_unsubscribe | ( | lscp_client_t * | pClient,
|  | lscp_event_t | events
| ) |  |

Deregister frontend from receiving UDP event messages anymore. Caution: since liblscp v0.5.5.4 you have to call lscp_client_unsubscribe() for each event you want to unsubscribe. That is the old bitflag approach was abondoned at this point. You can however still register all older events with one lscp_client_subscribe() call at once. Thus, the old behavior of this functions was not broken. Those older events are namely:

UNSUBSCRIBE CHANNEL_COUNT | VOICE_COUNT | STREAM_COUNT
| BUFFER_FILL | CHANNEL_INFO | TOTAL_VOICE_COUNT
| AUDIO_OUTPUT_DEVICE_COUNT | AUDIO_OUTPUT_DEVICE_INFO
| MIDI_INPUT_DEVICE_COUNT | MIDI_INPUT_DEVICE_INFO
| MIDI_INSTRUMENT_MAP_COUNT | MIDI_INSTRUMENT_MAP_INFO
| MIDI_INSTRUMENT_COUNT | MIDI_INSTRUMENT_INFO
| MISCELLANEOUS

The old events occupy the lower 16 bits (as bit flags), and all younger events enumerate the whole upper 16 bits range. The new, enumerated events are namely:

UNSUBSCRIBE CHANNEL_MIDI

Parameters

  pClient | Pointer to client instance structure.
  events | LSCP event to unsubscribe.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_EVENT_CHANNEL_COUNT, LSCP_FAILED, lscp_mutex_lock, and LSCP_OK.

## ◆ lscp_client_version()

const char * lscp_client_version | ( | void |  | ) |

Retrieve the current client library version string.

References LSCP_VERSION.

## ◆ lscp_create_fxsend()

int lscp_create_fxsend | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iMidiController,
|  | const char * | pszFxName
| ) |  |

Add an effect send to a sampler channel: CREATE FX_SEND <sampler-channel> <midi-ctrl> [<fx-name>]

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iMidiController | MIDI controller used to alter the effect, usually a number between 0 and 127.
  pszFxName | Optional name for the effect send entity, does not have to be unique.

Returns
  The new effect send number identifier, or -1 in case of failure.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_destroy_fxsend()

lscp_status_t lscp_destroy_fxsend | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iFxSend
| ) |  |

Remove an effect send from a sampler channel: DESTROY FX_SEND <sampler-channel> <fx-send-id>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iFxSend | Effect send number.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_edit_channel_instrument()

lscp_status_t lscp_edit_channel_instrument | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel
| ) |  |

Open an instrument editor application for the instrument on the given sampler channel: EDIT CHANNEL INSTRUMENT <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler Channel.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_get_available_engines()

int lscp_get_available_engines | ( | lscp_client_t * | pClient | ) |

Getting all available engines count: GET AVAILABLE_ENGINES

Parameters

  pClient | Pointer to client instance structure.

Returns
  The current total number of sampler engines on success, -1 otherwise.

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_channel_buffer_fill()

lscp_buffer_fill_t * lscp_get_channel_buffer_fill | ( | lscp_client_t * | pClient,
|  | lscp_usage_t | usage_type,
|  | int | iSamplerChannel
| ) |  |

Current fill state of disk stream buffers: GET CHANNEL BUFFER_FILL {BYTES|PERCENTAGE} <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  usage_type | Usage type to be returned, either LSCP_USAGE_BYTES, or LSCP_USAGE_PERCENTAGE.
  iSamplerChannel | Sampler channel number.

Returns
  A pointer to a lscp_buffer_fill_t structure, with the information of the current disk stream buffer fill usage, for the given sampler channel, or NULL in case of failure.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_get_channel_stream_count(), lscp_mutex_lock, lscp_mutex_unlock, LSCP_OK, LSCP_USAGE_BYTES, _lscp_buffer_fill_t::stream_id, and _lscp_buffer_fill_t::stream_usage.

## ◆ lscp_get_channel_info()

lscp_channel_info_t * lscp_get_channel_info | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel
| ) |  |

Getting sampler channel informations: GET CHANNEL INFO <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.

Returns
  A pointer to a lscp_channel_info_t structure, with all the information of the given sampler channel, or NULL in case of failure.

References LSCP_BUFSIZ, and lscp_mutex_lock.

## ◆ lscp_get_channel_stream_count()

int lscp_get_channel_stream_count | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel
| ) |  |

Current number of active disk streams: GET CHANNEL STREAM_COUNT <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.

Returns
  The number of active disk streams on success, -1 otherwise.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

Referenced by lscp_get_channel_buffer_fill().

## ◆ lscp_get_channel_stream_usage()

int lscp_get_channel_stream_usage | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel
| ) |  |

Current least usage of active disk streams.

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.

Returns
  The usage percentage of the least filled active disk stream on success, -1 otherwise.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_channel_voice_count()

int lscp_get_channel_voice_count | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel
| ) |  |

Current number of active voices: GET CHANNEL VOICE_COUNT <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.

Returns
  The number of voices currently active, -1 in case of failure.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_channels()

int lscp_get_channels | ( | lscp_client_t * | pClient | ) |

Current number of sampler channels: GET CHANNELS

Parameters

  pClient | Pointer to client instance structure.

Returns
  The current total number of sampler channels on success, -1 otherwise.

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_engine_info()

lscp_engine_info_t * lscp_get_engine_info | ( | lscp_client_t * | pClient,
|  | const char * | pszEngineName
| ) |  |

Getting information about an engine. GET ENGINE INFO <engine-name>

Parameters

  pClient | Pointer to client instance structure.
  pszEngineName | Engine name.

Returns
  A pointer to a lscp_engine_info_t structure, with all the information of the given sampler engine, or NULL in case of failure.

References _lscp_engine_info_t::description, LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, LSCP_OK, and _lscp_engine_info_t::version.

## ◆ lscp_get_fxsend_info()

lscp_fxsend_info_t * lscp_get_fxsend_info | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iFxSend
| ) |  |

Getting effect send information GET FX_SEND INFO <sampler-channel> <fx-send-id>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iFxSend | Effect send number.

Returns
  A pointer to a lscp_fxsend_info_t structure, with the information of the given FX send, or NULL in case of failure.

References LSCP_BUFSIZ, and lscp_mutex_lock.

## ◆ lscp_get_fxsends()

int lscp_get_fxsends | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel
| ) |  |

Get amount of effect sends on a sampler channel: GET FX_SENDS <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.

Returns
  The current total number of effect sends of the sampler channel on success, -1 otherwise.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_midi_instrument_info()

lscp_midi_instrument_info_t * lscp_get_midi_instrument_info | ( | lscp_client_t * | pClient,
|  | lscp_midi_instrument_t * | pMidiInstr
| ) |  |

Getting information about a MIDI instrument map entry: GET MIDI_INSTRUMENT INFO <midi-map> <midi-bank> <midi-prog>

Parameters

  pClient | Pointer to client instance structure.
  pMidiInstr | MIDI instrument bank and program parameter key.

Returns
  A pointer to a lscp_midi_instrument_info_t structure, with all the information of the given MIDI instrument map entry, or NULL in case of failure.

References _lscp_midi_instrument_t::bank, LSCP_BUFSIZ, lscp_mutex_lock, _lscp_midi_instrument_t::map, and _lscp_midi_instrument_t::prog.

## ◆ lscp_get_midi_instrument_map_name()

const char * lscp_get_midi_instrument_map_name | ( | lscp_client_t * | pClient,
|  | int | iMidiMap
| ) |  |

Getting a MIDI instrument map name: GET MIDI_INSTRUMENT_MAP INFO <midi-map>

Parameters

  pClient | Pointer to client instance structure.
  iMidiMap | MIDI instrument map number.

Returns
  The MIDI instrument map name on success, NULL on failure.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_midi_instrument_maps()

int lscp_get_midi_instrument_maps | ( | lscp_client_t * | pClient | ) |

Get amount of existing MIDI instrument maps: GET MIDI_INSTRUMENT_MAPS

Parameters

  pClient | Pointer to client instance structure.

Returns
  The current total number of MIDI instrument maps on success, -1 otherwise.

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_midi_instruments()

int lscp_get_midi_instruments | ( | lscp_client_t * | pClient,
|  | int | iMidiMap
| ) |  |

Get the total count of MIDI instrument map entries: GET MIDI_INSTRUMENTS ALL|<midi-map>

Parameters

  pClient | Pointer to client instance structure.
  iMidiMap | MIDI instrument map number, or LSCP_MIDI_MAP_ALL .

Returns
  The current total number of MIDI instrument map entries on success, -1 otherwise.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_server_info()

lscp_server_info_t * lscp_get_server_info | ( | lscp_client_t * | pClient | ) |

Getting information about the server. GET SERVER INFO

Parameters

  pClient | Pointer to client instance structure.

Returns
  A pointer to a lscp_server_info_t structure, with all the information of the current connected server, or NULL in case of failure.

References _lscp_server_info_t::description, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, LSCP_OK, _lscp_server_info_t::protocol_version, and _lscp_server_info_t::version.

## ◆ lscp_get_streams()

int lscp_get_streams | ( | lscp_client_t * | pClient | ) |

Get global disk streams limit setting:

GET STREAMS

This value reflects the maximum amount of disk streams a sampler engine processes simultaniously.

Parameters

  pClient | Pointer to client instance structure.

Returns
  The current global maximum amount of disk streams limit or a negative value on error (e.g. if sampler doesn't support this command).

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_total_voice_count()

int lscp_get_total_voice_count | ( | lscp_client_t * | pClient | ) |

Current total number of active voices: GET TOTAL_VOICE_COUNT

Parameters

  pClient | Pointer to client instance structure.

Returns
  The total number of voices currently active, -1 in case of failure.

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_total_voice_count_max()

int lscp_get_total_voice_count_max | ( | lscp_client_t * | pClient | ) |

Maximum amount of active voices: GET TOTAL_VOICE_COUNT_MAX

Parameters

  pClient | Pointer to client instance structure.

Returns
  The maximum amount of voices currently active, -1 in case of failure.

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_voices()

int lscp_get_voices | ( | lscp_client_t * | pClient | ) |

Get global voice limit setting:

GET VOICES

This value reflects the maximum amount of voices a sampler engine processes simultaniously before voice stealing kicks in.

Parameters

  pClient | Pointer to client instance structure.

Returns
  The current global maximum amount of voices limit or a negative value on error (e.g. if sampler doesn't support this command).

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_get_volume()

float lscp_get_volume | ( | lscp_client_t * | pClient | ) |

Get global volume attenuation: GET VOLUME

Parameters

  pClient | Pointer to client instance structure.

Returns
  The global volume as positive floating point value usually in the range between 0.0 and 1.0; in case of failure 0.0 is returned.

References lscp_mutex_lock.

## ◆ lscp_list_available_engines()

const char ** lscp_list_available_engines | ( | lscp_client_t * | pClient | ) |

Getting all available engines: LIST AVAILABLE_ENGINES

Parameters

  pClient | Pointer to client instance structure.

Returns
  A NULL terminated array of engine name strings, or NULL in case of failure.

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_list_channels()

int * lscp_list_channels | ( | lscp_client_t * | pClient | ) |

List current sampler channels number identifiers: LIST CHANNELS

Parameters

  pClient | Pointer to client instance structure.

Returns
  An array of the sampler channels identifiers as positive integers, terminated with -1 on success, NULL otherwise.

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_list_fxsends()

int * lscp_list_fxsends | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel
| ) |  |

List all effect sends on a sampler channel: LIST FX_SENDS <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.

Returns
  An array of the effect sends identifiers as positive integers, terminated with -1 on success, NULL otherwise.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_list_midi_instrument_maps()

int * lscp_list_midi_instrument_maps | ( | lscp_client_t * | pClient | ) |

Getting all created MIDI instrument maps: LIST MIDI_INSTRUMENT_MAPS

Parameters

  pClient | Pointer to client instance structure.

Returns
  An array of the MIDI instrument map identifiers as positive integers, terminated with -1 on success, NULL otherwise.

References lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_list_midi_instruments()

lscp_midi_instrument_t * lscp_list_midi_instruments | ( | lscp_client_t * | pClient,
|  | int | iMidiMap
| ) |  |

Getting indeces of all MIDI instrument map entries: LIST MIDI_INSTRUMENTS ALL|<midi-map>

Parameters

  pClient | Pointer to client instance structure.
  iMidiMap | MIDI instrument map number, or LSCP_MIDI_MAP_ALL .

Returns
  An array of lscp_midi_instrument_t, terminated with the {-1,-1,-1} triplet, NULL otherwise.

References LSCP_BUFSIZ, lscp_client_get_result(), lscp_mutex_lock, lscp_mutex_unlock, and LSCP_OK.

## ◆ lscp_load_engine()

lscp_status_t lscp_load_engine | ( | lscp_client_t * | pClient,
|  | const char * | pszEngineName,
|  | int | iSamplerChannel
| ) |  |

Loading a sampler engine: LOAD ENGINE <engine-name> <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  pszEngineName | Engine name.
  iSamplerChannel | Sampler channel number.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_load_instrument()

lscp_status_t lscp_load_instrument | ( | lscp_client_t * | pClient,
|  | const char * | pszFileName,
|  | int | iInstrIndex,
|  | int | iSamplerChannel
| ) |  |

Loading an instrument: LOAD INSTRUMENT <filename> <instr-index> <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  pszFileName | Instrument file name.
  iInstrIndex | Instrument index number.
  iSamplerChannel | Sampler Channel.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_load_instrument_non_modal()

lscp_status_t lscp_load_instrument_non_modal | ( | lscp_client_t * | pClient,
|  | const char * | pszFileName,
|  | int | iInstrIndex,
|  | int | iSamplerChannel
| ) |  |

Loading an instrument in the background (non modal): LOAD INSTRUMENT NON_MODAL <filename> <instr-index> <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  pszFileName | Instrument file name.
  iInstrIndex | Instrument index number.
  iSamplerChannel | Sampler Channel.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_map_midi_instrument()

lscp_status_t lscp_map_midi_instrument | ( | lscp_client_t * | pClient,
|  | lscp_midi_instrument_t * | pMidiInstr,
|  | const char * | pszEngineName,
|  | const char * | pszFileName,
|  | int | iInstrIndex,
|  | float | fVolume,
|  | lscp_load_mode_t | load_mode,
|  | const char * | pszName
| ) |  |

Create or replace a MIDI instrumnet map entry: MAP MIDI_INSTRUMENT <midi-map> <midi-bank> <midi-prog> <engine-name> <filename> <instr-index> <volume> [<load-mode> [<name>]}

Parameters

  pClient | Pointer to client instance structure.
  pMidiInstr | MIDI instrument bank and program parameter key.
  pszEngineName | Engine name.
  pszFileName | Instrument file name.
  iInstrIndex | Instrument index number.
  fVolume | Reflects the master volume of the instrument as a positive floating point number, where a value less than 1.0 for attenuation, and greater than 1.0 for amplification.
  load_mode | Instrument load life-time strategy, either LSCP_LOAD_DEFAULT, or LSCP_LOAD_ON_DEMAND, or LSCP_LOAD_ON_DEMAND_HOLD, or LSCP_LOAD_PERSISTENT.
  pszName | Instrument custom name for the map entry (optional).

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References _lscp_midi_instrument_t::bank, LSCP_BUFSIZ, LSCP_FAILED, _lscp_midi_instrument_t::map, and _lscp_midi_instrument_t::prog.

## ◆ lscp_remove_channel()

lscp_status_t lscp_remove_channel | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel
| ) |  |

Removing a sampler channel: REMOVE CHANNEL <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_remove_midi_instrument_map()

lscp_status_t lscp_remove_midi_instrument_map | ( | lscp_client_t * | pClient,
|  | int | iMidiMap
| ) |  |

Delete one particular or all MIDI instrument maps: REMOVE MIDI_INSTRUMENT_MAP <midi-map>

Parameters

  pClient | Pointer to client instance structure.
  iMidiMap | MIDI instrument map number.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_reset_channel()

lscp_status_t lscp_reset_channel | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel
| ) |  |

Resetting a sampler channel: RESET CHANNEL <sampler-channel>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_reset_sampler()

lscp_status_t lscp_reset_sampler | ( | lscp_client_t * | pClient | ) |

Resetting the sampler: RESET

Parameters

  pClient | Pointer to client instance structure.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References lscp_client_query().

## ◆ lscp_set_channel_audio_channel()

lscp_status_t lscp_set_channel_audio_channel | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iAudioOut,
|  | int | iAudioIn
| ) |  |

Setting audio output channel: SET CHANNEL AUDIO_OUTPUT_CHANNEL <sampler-channel> <audio-output-chan> <audio-input-chan>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iAudioOut | Audio output device channel to be routed from.
  iAudioIn | Audio output device channel to be routed into.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_channel_audio_device()

lscp_status_t lscp_set_channel_audio_device | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iAudioDevice
| ) |  |

Setting audio output device: SET CHANNEL AUDIO_OUTPUT_DEVICE <sampler-channel> <device-id>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iAudioDevice | Audio output device number identifier.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_channel_audio_type()

lscp_status_t lscp_set_channel_audio_type | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | const char * | pszAudioDriver
| ) |  |

Setting audio output type: SET CHANNEL AUDIO_OUTPUT_TYPE <sampler-channel> <audio-output-type>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  pszAudioDriver | Audio output driver type (e.g. "ALSA" or "JACK").

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_channel_midi_channel()

lscp_status_t lscp_set_channel_midi_channel | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iMidiChannel
| ) |  |

Setting MIDI input channel: SET CHANNEL MIDI_INPUT_CHANNEL <sampler-channel> <midi-input-chan>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iMidiChannel | MIDI channel address number to listen (0-15) or LSCP_MIDI_CHANNEL_ALL (16) to listen on all channels.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), LSCP_FAILED, and LSCP_MIDI_CHANNEL_ALL.

## ◆ lscp_set_channel_midi_device()

lscp_status_t lscp_set_channel_midi_device | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iMidiDevice
| ) |  |

Setting MIDI input device: SET CHANNEL MIDI_INPUT_DEVICE <sampler-channel> <device-id>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iMidiDevice | MIDI input device number identifier.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_channel_midi_map()

lscp_status_t lscp_set_channel_midi_map | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iMidiMap
| ) |  |

Setting MIDI instrument map: SET CHANNEL MIDI_INSTRUMENT_MAP <sampler-channel> <midi-map>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iMidiMap | MIDI instrument map number, or either LSCP_MIDI_MAP_NONE or LSCP_MIDI_MAP_DEFAULT .

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), LSCP_FAILED, LSCP_MIDI_MAP_DEFAULT, and LSCP_MIDI_MAP_NONE.

## ◆ lscp_set_channel_midi_port()

lscp_status_t lscp_set_channel_midi_port | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iMidiPort
| ) |  |

Setting MIDI input port: SET CHANNEL MIDI_INPUT_PORT <sampler-channel> <midi-input-port>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iMidiPort | MIDI input driver virtual port number.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_channel_midi_type()

lscp_status_t lscp_set_channel_midi_type | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | const char * | pszMidiDriver
| ) |  |

Setting MIDI input type: SET CHANNEL MIDI_INPUT_TYPE <sampler-channel> <midi-input-type>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  pszMidiDriver | MIDI input driver type (e.g. "ALSA").

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_channel_mute()

lscp_status_t lscp_set_channel_mute | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iMute
| ) |  |

Muting a sampler channel: SET CHANNEL MUTE <sampler-channel> <mute>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iMute | Sampler channel mute state as a boolean value, either 1 (one) to mute the channel or 0 (zero) to unmute the channel.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_channel_solo()

lscp_status_t lscp_set_channel_solo | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iSolo
| ) |  |

Soloing a sampler channel: SET CHANNEL SOLO <sampler-channel> <solo>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iSolo | Sampler channel solo state as a boolean value, either 1 (one) to solo the channel or 0 (zero) to unsolo the channel.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_channel_volume()

lscp_status_t lscp_set_channel_volume | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | float | fVolume
| ) |  |

Setting channel volume: SET CHANNEL VOLUME <sampler-channel> <volume>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  fVolume | Sampler channel volume as a positive floating point number, where a value less than 1.0 for attenuation, and greater than 1.0 for amplification.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, and LSCP_FAILED.

## ◆ lscp_set_fxsend_audio_channel()

lscp_status_t lscp_set_fxsend_audio_channel | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iFxSend,
|  | int | iAudioSrc,
|  | int | iAudioDst
| ) |  |

Alter effect send's audio routing: SET FX_SEND AUDIO_OUTPUT_CHANNEL <sampler-chan> <fx-send-id> <audio-src> <audio-dst>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iFxSend | Effect send number.
  iAudioSrc | Audio output device channel to be routed from.
  iAudioDst | Audio output device channel to be routed into.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_fxsend_level()

lscp_status_t lscp_set_fxsend_level | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iFxSend,
|  | float | fLevel
| ) |  |

Alter effect send's audio level: SET FX_SEND LEVEL <sampler-chan> <fx-send-id> <level>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iFxSend | Effect send number.
  fLevel | Effect send volume level.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, and LSCP_FAILED.

## ◆ lscp_set_fxsend_midi_controller()

lscp_status_t lscp_set_fxsend_midi_controller | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iFxSend,
|  | int | iMidiController
| ) |  |

Alter effect send's MIDI controller: SET FX_SEND MIDI_CONTROLLER <sampler-chan> <fx-send-id> <midi-ctrl>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iFxSend | Effect send number.
  iMidiController | MIDI controller used to alter the effect, usually a number between 0 and 127.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_fxsend_name()

lscp_status_t lscp_set_fxsend_name | ( | lscp_client_t * | pClient,
|  | int | iSamplerChannel,
|  | int | iFxSend,
|  | const char * | pszFxName
| ) |  |

Alter effect send's name:

SET FX_SEND NAME <sampler-chan> <fx-send-id> <name>

Parameters

  pClient | Pointer to client instance structure.
  iSamplerChannel | Sampler channel number.
  iFxSend | Effect send number.
  pszFxName | Effect send's new name.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_midi_instrument_map_name()

lscp_status_t lscp_set_midi_instrument_map_name | ( | lscp_client_t * | pClient,
|  | int | iMidiMap,
|  | const char * | pszMapName
| ) |  |

Renaming a MIDI instrument map: SET MIDI_INSTRUMENT_MAP NAME <midi-map> <map-name>

Parameters

  pClient | Pointer to client instance structure.
  iMidiMap | MIDI instrument map number.
  pszMapName | MIDI instrument map name.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_streams()

lscp_status_t lscp_set_streams | ( | lscp_client_t * | pClient,
|  | int | iMaxStreams
| ) |  |

Setting global disk streams limit setting:

SET STREAMS <max-streams>

This value reflects the maximum amount of dist streams a sampler engine instance processes simultaniously. Note that this value will be passed to all sampler engine instances, that is the total amount of maximum disk streams on the running system is thus

Parameters

  iMaxStreams | multiplied with the current amount of sampler engine instances.
  pClient | Pointer to client instance structure.
  iMaxStreams | Global streams limit setting as positive integer value (larger or equal to 0).

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_voices()

lscp_status_t lscp_set_voices | ( | lscp_client_t * | pClient,
|  | int | iMaxVoices
| ) |  |

Setting global voice limit setting:

SET VOICES <max-voices>

This value reflects the maximum amount of voices a sampler engine processes simultaniously before voice stealing kicks in. Note that this value will be passed to all sampler engine instances, that is the total amount of maximum voices on the running system is thus

Parameters

  iMaxVoices | multiplied with the current amount of sampler engine instances.
  pClient | Pointer to client instance structure.
  iMaxVoices | Global voice limit setting as integer value larger or equal to 1.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, lscp_client_query(), and LSCP_FAILED.

## ◆ lscp_set_volume()

lscp_status_t lscp_set_volume | ( | lscp_client_t * | pClient,
|  | float | fVolume
| ) |  |

Setting global volume attenuation: SET VOLUME <volume>

Parameters

  pClient | Pointer to client instance structure.
  fVolume | Global volume parameter as positive floating point value usually be in the range between 0.0 and 1.0, that is for attenuating the overall volume.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References LSCP_BUFSIZ, and LSCP_FAILED.

## ◆ lscp_unmap_midi_instrument()

lscp_status_t lscp_unmap_midi_instrument | ( | lscp_client_t * | pClient,
|  | lscp_midi_instrument_t * | pMidiInstr
| ) |  |

Remove an entry from the MIDI instrument map: UNMAP MIDI_INSTRUMENT <midi-map> <midi-bank> <midi-prog>

Parameters

  pClient | Pointer to client instance structure.
  pMidiInstr | MIDI instrument bank and program parameter key.

Returns
  LSCP_OK on success, LSCP_FAILED otherwise.

References _lscp_midi_instrument_t::bank, LSCP_BUFSIZ, lscp_client_query(), LSCP_FAILED, _lscp_midi_instrument_t::map, and _lscp_midi_instrument_t::prog.