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// client.c |
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// |
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/**************************************************************************** |
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liblscp - LinuxSampler Control Protocol API |
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Copyright (C) 2004-2005, rncbc aka Rui Nuno Capela. All rights reserved. |
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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You should have received a copy of the GNU Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*****************************************************************************/ |
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#include "common.h" |
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// Default timeout value (in milliseconds). |
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#define LSCP_TIMEOUT_MSECS 500 |
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// Local prototypes. |
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static void _lscp_client_evt_proc (void *pvClient); |
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static lscp_status_t _lscp_client_evt_connect (lscp_client_t *pClient); |
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static lscp_status_t _lscp_client_evt_request (lscp_client_t *pClient, int iSubscribe, lscp_event_t event); |
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//------------------------------------------------------------------------- |
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// Event service (datagram oriented). |
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|
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static void _lscp_client_evt_proc ( void *pvClient ) |
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{ |
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lscp_client_t *pClient = (lscp_client_t *) pvClient; |
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fd_set fds; // File descriptor list for select(). |
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int fd, fdmax; // Maximum file descriptor number. |
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struct timeval tv; // For specifying a timeout value. |
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int iSelect; // Holds select return status. |
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int iTimeout; |
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char achBuffer[LSCP_BUFSIZ]; |
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int cchBuffer; |
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const char *pszSeps = ":\r\n"; |
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char * pszToken; |
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char * pch; |
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int cchToken; |
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lscp_event_t event; |
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#ifdef DEBUG |
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fprintf(stderr, "_lscp_client_evt_proc: Client waiting for events.\n"); |
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#endif |
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while (pClient->evt.iState) { |
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// Prepare for waiting on select... |
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fd = (int) pClient->evt.sock; |
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FD_ZERO(&fds); |
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FD_SET((unsigned int) fd, &fds); |
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fdmax = fd; |
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// Use the timeout (x10) select feature ... |
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iTimeout = 10 * pClient->iTimeout; |
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if (iTimeout > 1000) { |
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tv.tv_sec = iTimeout / 1000; |
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iTimeout -= tv.tv_sec * 1000; |
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} |
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else tv.tv_sec = 0; |
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tv.tv_usec = iTimeout * 1000; |
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// Wait for event... |
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iSelect = select(fdmax + 1, &fds, NULL, NULL, &tv); |
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if (iSelect > 0 && FD_ISSET(fd, &fds)) { |
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// May recv now... |
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cchBuffer = recv(pClient->evt.sock, achBuffer, sizeof(achBuffer), 0); |
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if (cchBuffer > 0) { |
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// Make sure received buffer it's null terminated. |
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achBuffer[cchBuffer] = (char) 0; |
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// Parse for the notification event message... |
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pszToken = lscp_strtok(achBuffer, pszSeps, &(pch)); // Have "NOTIFY". |
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if (strcasecmp(pszToken, "NOTIFY") == 0) { |
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pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
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event = lscp_event_from_text(pszToken); |
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// And pick the rest of data... |
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pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
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cchToken = (pszToken == NULL ? 0 : strlen(pszToken)); |
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// Double-check if we're really up to it... |
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if (pClient->events & event) { |
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// Invoke the client event callback... |
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if ((*pClient->pfnCallback)( |
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pClient, |
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event, |
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pszToken, |
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cchToken, |
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pClient->pvData) != LSCP_OK) { |
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pClient->evt.iState = 0; |
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} |
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} |
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} |
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} else { |
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lscp_socket_perror("_lscp_client_evt_proc: recv"); |
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pClient->evt.iState = 0; |
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} |
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} // Check if select has in error. |
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else if (iSelect < 0) { |
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lscp_socket_perror("_lscp_client_evt_proc: select"); |
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pClient->evt.iState = 0; |
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} |
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// Finally, always signal the event. |
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lscp_cond_signal(pClient->cond); |
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} |
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#ifdef DEBUG |
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fprintf(stderr, "_lscp_client_evt_proc: Client closing.\n"); |
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#endif |
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} |
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//------------------------------------------------------------------------- |
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// Event subscription helpers. |
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// Open the event service socket connection. |
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static lscp_status_t _lscp_client_evt_connect ( lscp_client_t *pClient ) |
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{ |
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lscp_socket_t sock; |
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struct sockaddr_in addr; |
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int cAddr; |
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#if defined(WIN32) |
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int iSockOpt = (-1); |
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#endif |
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// Prepare the event connection socket... |
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sock = socket(AF_INET, SOCK_STREAM, 0); |
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if (sock == INVALID_SOCKET) { |
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lscp_socket_perror("_lscp_client_evt_connect: socket"); |
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return LSCP_FAILED; |
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} |
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#if defined(WIN32) |
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if (setsockopt(sock, SOL_SOCKET, SO_DONTLINGER, (char *) &iSockOpt, sizeof(int)) == SOCKET_ERROR) |
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lscp_socket_perror("lscp_client_evt_connect: setsockopt(SO_DONTLINGER)"); |
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#endif |
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#ifdef DEBUG |
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lscp_socket_getopts("_lscp_client_evt_connect:", sock); |
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#endif |
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// Use same address of the command connection. |
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cAddr = sizeof(struct sockaddr_in); |
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memmove((char *) &addr, &(pClient->cmd.addr), cAddr); |
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// Start the connection... |
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if (connect(sock, (struct sockaddr *) &addr, cAddr) == SOCKET_ERROR) { |
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lscp_socket_perror("_lscp_client_evt_connect: connect"); |
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closesocket(sock); |
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return LSCP_FAILED; |
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} |
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// Set our socket agent struct... |
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lscp_socket_agent_init(&(pClient->evt), sock, &addr, cAddr); |
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// And finally the service thread... |
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return lscp_socket_agent_start(&(pClient->evt), _lscp_client_evt_proc, pClient, 0); |
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} |
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// Subscribe to a single event. |
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static lscp_status_t _lscp_client_evt_request ( lscp_client_t *pClient, int iSubscribe, lscp_event_t event ) |
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{ |
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const char *pszEvent; |
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char szQuery[LSCP_BUFSIZ]; |
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int cchQuery; |
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if (pClient == NULL) |
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return LSCP_FAILED; |
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// Which (single) event? |
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pszEvent = lscp_event_to_text(event); |
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if (pszEvent == NULL) |
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return LSCP_FAILED; |
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// Build the query string... |
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cchQuery = sprintf(szQuery, "%sSUBSCRIBE %s\n\n", (iSubscribe == 0 ? "UN" : ""), pszEvent); |
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// Just send data, forget result... |
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if (send(pClient->evt.sock, szQuery, cchQuery, 0) < cchQuery) { |
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lscp_socket_perror("_lscp_client_evt_request: send"); |
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return LSCP_FAILED; |
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} |
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// Wait on response. |
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lscp_cond_wait(pClient->cond, pClient->mutex); |
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// Update as naively as we can... |
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if (iSubscribe) |
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pClient->events |= event; |
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else |
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pClient->events &= ~event; |
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return LSCP_OK; |
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} |
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//------------------------------------------------------------------------- |
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// Client versioning teller fuunction. |
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/** Retrieve the current client library version string. */ |
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const char* lscp_client_package (void) { return LSCP_PACKAGE; } |
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/** Retrieve the current client library version string. */ |
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const char* lscp_client_version (void) { return LSCP_VERSION; } |
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/** Retrieve the current client library build timestamp string. */ |
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const char* lscp_client_build (void) { return __DATE__ " " __TIME__; } |
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//------------------------------------------------------------------------- |
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// Client socket functions. |
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/** |
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* Create a client instance, estabilishing a connection to a server hostname, |
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* which must be listening on the given port. A client callback function is |
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* also supplied for server notification event handling. |
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* |
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* @param pszHost Hostname of the linuxsampler listening server. |
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* @param iPort Port number of the linuxsampler listening server. |
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* @param pfnCallback Callback function to receive event notifications. |
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* @param pvData User context opaque data, that will be passed |
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* to the callback function. |
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* |
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* @returns The new client instance pointer if successfull, which shall be |
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* used on all subsequent client calls, NULL otherwise. |
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*/ |
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lscp_client_t* lscp_client_create ( const char *pszHost, int iPort, lscp_client_proc_t pfnCallback, void *pvData ) |
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{ |
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lscp_client_t *pClient; |
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struct hostent *pHost; |
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lscp_socket_t sock; |
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struct sockaddr_in addr; |
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int cAddr; |
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#if defined(WIN32) |
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int iSockOpt = (-1); |
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#endif |
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if (pfnCallback == NULL) { |
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fprintf(stderr, "lscp_client_create: Invalid client callback function.\n"); |
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return NULL; |
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} |
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pHost = gethostbyname(pszHost); |
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if (pHost == NULL) { |
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lscp_socket_herror("lscp_client_create: gethostbyname"); |
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return NULL; |
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} |
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// Allocate client descriptor... |
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pClient = (lscp_client_t *) malloc(sizeof(lscp_client_t)); |
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if (pClient == NULL) { |
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fprintf(stderr, "lscp_client_create: Out of memory.\n"); |
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return NULL; |
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} |
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memset(pClient, 0, sizeof(lscp_client_t)); |
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pClient->pfnCallback = pfnCallback; |
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pClient->pvData = pvData; |
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#ifdef DEBUG |
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fprintf(stderr, "lscp_client_create: pClient=%p: pszHost=%s iPort=%d.\n", pClient, pszHost, iPort); |
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#endif |
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// Prepare the command connection socket... |
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sock = socket(AF_INET, SOCK_STREAM, 0); |
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if (sock == INVALID_SOCKET) { |
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lscp_socket_perror("lscp_client_create: cmd: socket"); |
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free(pClient); |
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return NULL; |
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} |
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#if defined(WIN32) |
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if (setsockopt(sock, SOL_SOCKET, SO_DONTLINGER, (char *) &iSockOpt, sizeof(int)) == SOCKET_ERROR) |
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lscp_socket_perror("lscp_client_create: cmd: setsockopt(SO_DONTLINGER)"); |
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#endif |
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#ifdef DEBUG |
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lscp_socket_getopts("lscp_client_create: cmd", sock); |
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#endif |
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cAddr = sizeof(struct sockaddr_in); |
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memset((char *) &addr, 0, cAddr); |
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addr.sin_family = pHost->h_addrtype; |
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memmove((char *) &(addr.sin_addr), pHost->h_addr, pHost->h_length); |
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addr.sin_port = htons((short) iPort); |
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if (connect(sock, (struct sockaddr *) &addr, cAddr) == SOCKET_ERROR) { |
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lscp_socket_perror("lscp_client_create: cmd: connect"); |
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closesocket(sock); |
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free(pClient); |
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return NULL; |
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} |
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// Initialize the command socket agent struct... |
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lscp_socket_agent_init(&(pClient->cmd), sock, &addr, cAddr); |
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#ifdef DEBUG |
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fprintf(stderr, "lscp_client_create: cmd: pClient=%p: sock=%d addr=%s port=%d.\n", pClient, pClient->cmd.sock, inet_ntoa(pClient->cmd.addr.sin_addr), ntohs(pClient->cmd.addr.sin_port)); |
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#endif |
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// Initialize the event service socket struct... |
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lscp_socket_agent_init(&(pClient->evt), INVALID_SOCKET, NULL, 0); |
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// No events subscribed, yet. |
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pClient->events = LSCP_EVENT_NONE; |
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// Initialize cached members. |
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pClient->audio_drivers = NULL; |
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pClient->midi_drivers = NULL; |
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pClient->audio_devices = NULL; |
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pClient->midi_devices = NULL; |
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pClient->engines = NULL; |
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pClient->channels = NULL; |
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lscp_driver_info_init(&(pClient->audio_driver_info)); |
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lscp_driver_info_init(&(pClient->midi_driver_info)); |
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lscp_device_info_init(&(pClient->audio_device_info)); |
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lscp_device_info_init(&(pClient->midi_device_info)); |
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lscp_param_info_init(&(pClient->audio_param_info)); |
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lscp_param_info_init(&(pClient->midi_param_info)); |
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lscp_device_port_info_init(&(pClient->audio_channel_info)); |
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lscp_device_port_info_init(&(pClient->midi_port_info)); |
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lscp_param_info_init(&(pClient->audio_channel_param_info)); |
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lscp_param_info_init(&(pClient->midi_port_param_info)); |
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lscp_engine_info_init(&(pClient->engine_info)); |
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lscp_channel_info_init(&(pClient->channel_info)); |
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// Initialize error stuff. |
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pClient->pszResult = NULL; |
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pClient->iErrno = -1; |
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// Stream usage stuff. |
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pClient->buffer_fill = NULL; |
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pClient->iStreamCount = 0; |
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// Default timeout value. |
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pClient->iTimeout = LSCP_TIMEOUT_MSECS; |
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// Initialize the transaction mutex. |
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lscp_mutex_init(pClient->mutex); |
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177 |
lscp_cond_init(pClient->cond); |
354 |
capela |
107 |
|
355 |
|
|
// Finally we've some success... |
356 |
|
|
return pClient; |
357 |
|
|
} |
358 |
|
|
|
359 |
|
|
|
360 |
|
|
/** |
361 |
|
|
* Wait for a client instance to terminate graciously. |
362 |
|
|
* |
363 |
|
|
* @param pClient Pointer to client instance structure. |
364 |
|
|
*/ |
365 |
|
|
lscp_status_t lscp_client_join ( lscp_client_t *pClient ) |
366 |
|
|
{ |
367 |
|
|
if (pClient == NULL) |
368 |
|
|
return LSCP_FAILED; |
369 |
|
|
|
370 |
|
|
#ifdef DEBUG |
371 |
|
|
fprintf(stderr, "lscp_client_join: pClient=%p.\n", pClient); |
372 |
|
|
#endif |
373 |
|
|
|
374 |
capela |
132 |
// lscp_socket_agent_join(&(pClient->evt)); |
375 |
|
|
lscp_socket_agent_join(&(pClient->cmd)); |
376 |
capela |
107 |
|
377 |
|
|
return LSCP_OK; |
378 |
|
|
} |
379 |
|
|
|
380 |
|
|
|
381 |
|
|
/** |
382 |
|
|
* Terminate and destroy a client instance. |
383 |
|
|
* |
384 |
|
|
* @param pClient Pointer to client instance structure. |
385 |
|
|
* |
386 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
387 |
|
|
*/ |
388 |
|
|
lscp_status_t lscp_client_destroy ( lscp_client_t *pClient ) |
389 |
|
|
{ |
390 |
|
|
if (pClient == NULL) |
391 |
|
|
return LSCP_FAILED; |
392 |
|
|
|
393 |
|
|
#ifdef DEBUG |
394 |
|
|
fprintf(stderr, "lscp_client_destroy: pClient=%p.\n", pClient); |
395 |
|
|
#endif |
396 |
|
|
|
397 |
capela |
132 |
// Lock this section up. |
398 |
|
|
lscp_mutex_lock(pClient->mutex); |
399 |
capela |
562 |
|
400 |
capela |
107 |
// Free up all cached members. |
401 |
capela |
179 |
lscp_channel_info_free(&(pClient->channel_info)); |
402 |
|
|
lscp_engine_info_free(&(pClient->engine_info)); |
403 |
|
|
lscp_param_info_free(&(pClient->midi_port_param_info)); |
404 |
|
|
lscp_param_info_free(&(pClient->audio_channel_param_info)); |
405 |
|
|
lscp_device_port_info_free(&(pClient->midi_port_info)); |
406 |
|
|
lscp_device_port_info_free(&(pClient->audio_channel_info)); |
407 |
|
|
lscp_param_info_free(&(pClient->midi_param_info)); |
408 |
|
|
lscp_param_info_free(&(pClient->audio_param_info)); |
409 |
|
|
lscp_device_info_free(&(pClient->midi_device_info)); |
410 |
|
|
lscp_device_info_free(&(pClient->audio_device_info)); |
411 |
|
|
lscp_driver_info_free(&(pClient->midi_driver_info)); |
412 |
|
|
lscp_driver_info_free(&(pClient->audio_driver_info)); |
413 |
capela |
107 |
// Free available engine table. |
414 |
|
|
lscp_szsplit_destroy(pClient->audio_drivers); |
415 |
|
|
lscp_szsplit_destroy(pClient->midi_drivers); |
416 |
capela |
125 |
lscp_isplit_destroy(pClient->audio_devices); |
417 |
|
|
lscp_isplit_destroy(pClient->midi_devices); |
418 |
capela |
107 |
lscp_szsplit_destroy(pClient->engines); |
419 |
capela |
125 |
lscp_isplit_destroy(pClient->channels); |
420 |
capela |
107 |
// Make them null. |
421 |
|
|
pClient->audio_drivers = NULL; |
422 |
|
|
pClient->midi_drivers = NULL; |
423 |
|
|
pClient->engines = NULL; |
424 |
|
|
// Free result error stuff. |
425 |
capela |
132 |
lscp_client_set_result(pClient, NULL, 0); |
426 |
capela |
167 |
// Free stream usage stuff. |
427 |
capela |
107 |
if (pClient->buffer_fill) |
428 |
|
|
free(pClient->buffer_fill); |
429 |
|
|
pClient->buffer_fill = NULL; |
430 |
|
|
pClient->iStreamCount = 0; |
431 |
|
|
pClient->iTimeout = 0; |
432 |
|
|
|
433 |
|
|
// Free socket agents. |
434 |
capela |
132 |
lscp_socket_agent_free(&(pClient->evt)); |
435 |
|
|
lscp_socket_agent_free(&(pClient->cmd)); |
436 |
capela |
107 |
|
437 |
|
|
// Last but not least, free good ol'transaction mutex. |
438 |
capela |
132 |
lscp_mutex_unlock(pClient->mutex); |
439 |
capela |
107 |
lscp_mutex_destroy(pClient->mutex); |
440 |
capela |
177 |
lscp_cond_destroy(pClient->cond); |
441 |
capela |
107 |
|
442 |
|
|
free(pClient); |
443 |
|
|
|
444 |
|
|
return LSCP_OK; |
445 |
|
|
} |
446 |
|
|
|
447 |
|
|
|
448 |
|
|
/** |
449 |
|
|
* Set the client transaction timeout interval. |
450 |
|
|
* |
451 |
|
|
* @param pClient Pointer to client instance structure. |
452 |
|
|
* @param iTimeout Transaction timeout in milliseconds. |
453 |
|
|
* |
454 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
455 |
|
|
*/ |
456 |
|
|
lscp_status_t lscp_client_set_timeout ( lscp_client_t *pClient, int iTimeout ) |
457 |
|
|
{ |
458 |
|
|
if (pClient == NULL) |
459 |
|
|
return LSCP_FAILED; |
460 |
|
|
if (iTimeout < 0) |
461 |
|
|
return LSCP_FAILED; |
462 |
|
|
|
463 |
|
|
pClient->iTimeout = iTimeout; |
464 |
|
|
return LSCP_OK; |
465 |
|
|
} |
466 |
|
|
|
467 |
|
|
|
468 |
|
|
/** |
469 |
|
|
* Get the client transaction timeout interval. |
470 |
|
|
* |
471 |
|
|
* @param pClient Pointer to client instance structure. |
472 |
|
|
* |
473 |
|
|
* @returns The current timeout value milliseconds, -1 in case of failure. |
474 |
|
|
*/ |
475 |
|
|
int lscp_client_get_timeout ( lscp_client_t *pClient ) |
476 |
|
|
{ |
477 |
|
|
if (pClient == NULL) |
478 |
|
|
return -1; |
479 |
|
|
|
480 |
|
|
return pClient->iTimeout; |
481 |
|
|
} |
482 |
|
|
|
483 |
|
|
|
484 |
|
|
//------------------------------------------------------------------------- |
485 |
|
|
// Client common protocol functions. |
486 |
|
|
|
487 |
|
|
/** |
488 |
|
|
* Submit a command query line string to the server. The query string |
489 |
|
|
* must be cr/lf and null terminated. Besides the return code, the |
490 |
|
|
* specific server response to the command request is made available |
491 |
|
|
* by the @ref lscp_client_get_result and @ref lscp_client_get_errno |
492 |
|
|
* function calls. |
493 |
|
|
* |
494 |
|
|
* @param pClient Pointer to client instance structure. |
495 |
|
|
* @param pszQuery Command request line to be sent to server, |
496 |
|
|
* must be cr/lf and null terminated. |
497 |
|
|
* |
498 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
499 |
|
|
*/ |
500 |
|
|
lscp_status_t lscp_client_query ( lscp_client_t *pClient, const char *pszQuery ) |
501 |
|
|
{ |
502 |
capela |
132 |
lscp_status_t ret; |
503 |
capela |
562 |
|
504 |
capela |
107 |
// Lock this section up. |
505 |
|
|
lscp_mutex_lock(pClient->mutex); |
506 |
|
|
|
507 |
capela |
132 |
// Just make the now guarded call. |
508 |
|
|
ret = lscp_client_call(pClient, pszQuery); |
509 |
capela |
562 |
|
510 |
capela |
132 |
// Unlock this section down. |
511 |
capela |
107 |
lscp_mutex_unlock(pClient->mutex); |
512 |
capela |
562 |
|
513 |
capela |
107 |
return ret; |
514 |
|
|
} |
515 |
|
|
|
516 |
|
|
/** |
517 |
|
|
* Get the last received result string. In case of error or warning, |
518 |
|
|
* this is the text of the error or warning message issued. |
519 |
|
|
* |
520 |
|
|
* @param pClient Pointer to client instance structure. |
521 |
|
|
* |
522 |
|
|
* @returns A pointer to the literal null-terminated result string as |
523 |
|
|
* of the last command request. |
524 |
|
|
*/ |
525 |
|
|
const char *lscp_client_get_result ( lscp_client_t *pClient ) |
526 |
|
|
{ |
527 |
|
|
if (pClient == NULL) |
528 |
|
|
return NULL; |
529 |
|
|
|
530 |
|
|
return pClient->pszResult; |
531 |
|
|
} |
532 |
|
|
|
533 |
|
|
|
534 |
|
|
/** |
535 |
|
|
* Get the last error/warning number received. |
536 |
|
|
* |
537 |
|
|
* @param pClient Pointer to client instance structure. |
538 |
|
|
* |
539 |
|
|
* @returns The numerical value of the last error or warning |
540 |
|
|
* response code received. |
541 |
|
|
*/ |
542 |
|
|
int lscp_client_get_errno ( lscp_client_t *pClient ) |
543 |
|
|
{ |
544 |
|
|
if (pClient == NULL) |
545 |
|
|
return -1; |
546 |
|
|
|
547 |
|
|
return pClient->iErrno; |
548 |
|
|
} |
549 |
|
|
|
550 |
|
|
|
551 |
|
|
//------------------------------------------------------------------------- |
552 |
|
|
// Client registration protocol functions. |
553 |
|
|
|
554 |
|
|
/** |
555 |
capela |
144 |
* Register frontend for receiving event messages: |
556 |
capela |
562 |
* SUBSCRIBE CHANNEL_COUNT | VOICE_COUNT | STREAM_COUNT | BUFFER_FILL |
557 |
capela |
144 |
* | CHANNEL_INFO | MISCELLANEOUS |
558 |
capela |
107 |
* |
559 |
|
|
* @param pClient Pointer to client instance structure. |
560 |
capela |
144 |
* @param events Bit-wise OR'ed event flags to subscribe. |
561 |
capela |
107 |
* |
562 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
563 |
|
|
*/ |
564 |
capela |
144 |
lscp_status_t lscp_client_subscribe ( lscp_client_t *pClient, lscp_event_t events ) |
565 |
capela |
107 |
{ |
566 |
capela |
144 |
lscp_status_t ret = LSCP_FAILED; |
567 |
capela |
107 |
|
568 |
capela |
144 |
if (pClient == NULL) |
569 |
capela |
107 |
return LSCP_FAILED; |
570 |
|
|
|
571 |
capela |
132 |
// Lock this section up. |
572 |
|
|
lscp_mutex_lock(pClient->mutex); |
573 |
capela |
144 |
|
574 |
|
|
// If applicable, start the alternate connection... |
575 |
|
|
if (pClient->events == LSCP_EVENT_NONE) |
576 |
|
|
ret = _lscp_client_evt_connect(pClient); |
577 |
capela |
562 |
|
578 |
capela |
144 |
// Send the subscription commands. |
579 |
capela |
562 |
if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_COUNT)) |
580 |
|
|
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_CHANNEL_COUNT); |
581 |
capela |
144 |
if (ret == LSCP_OK && (events & LSCP_EVENT_VOICE_COUNT)) |
582 |
|
|
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_VOICE_COUNT); |
583 |
|
|
if (ret == LSCP_OK && (events & LSCP_EVENT_STREAM_COUNT)) |
584 |
|
|
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_STREAM_COUNT); |
585 |
|
|
if (ret == LSCP_OK && (events & LSCP_EVENT_BUFFER_FILL)) |
586 |
|
|
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_BUFFER_FILL); |
587 |
|
|
if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_INFO)) |
588 |
|
|
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_CHANNEL_INFO); |
589 |
|
|
if (ret == LSCP_OK && (events & LSCP_EVENT_MISCELLANEOUS)) |
590 |
|
|
ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_MISCELLANEOUS); |
591 |
capela |
107 |
|
592 |
capela |
132 |
// Unlock this section down. |
593 |
|
|
lscp_mutex_unlock(pClient->mutex); |
594 |
|
|
|
595 |
capela |
107 |
return ret; |
596 |
|
|
} |
597 |
|
|
|
598 |
|
|
|
599 |
|
|
/** |
600 |
capela |
144 |
* Deregister frontend from receiving UDP event messages anymore: |
601 |
capela |
562 |
* SUBSCRIBE CHANNEL_COUNT | VOICE_COUNT | STREAM_COUNT | BUFFER_FILL |
602 |
capela |
144 |
* | CHANNEL_INFO | MISCELLANEOUS |
603 |
capela |
107 |
* |
604 |
|
|
* @param pClient Pointer to client instance structure. |
605 |
capela |
144 |
* @param events Bit-wise OR'ed event flags to unsubscribe. |
606 |
capela |
107 |
* |
607 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
608 |
|
|
*/ |
609 |
capela |
144 |
lscp_status_t lscp_client_unsubscribe ( lscp_client_t *pClient, lscp_event_t events ) |
610 |
capela |
107 |
{ |
611 |
capela |
144 |
lscp_status_t ret = LSCP_OK; |
612 |
capela |
107 |
|
613 |
|
|
if (pClient == NULL) |
614 |
|
|
return LSCP_FAILED; |
615 |
|
|
|
616 |
capela |
132 |
// Lock this section up. |
617 |
|
|
lscp_mutex_lock(pClient->mutex); |
618 |
|
|
|
619 |
capela |
144 |
// Send the unsubscription commands. |
620 |
capela |
562 |
if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_COUNT)) |
621 |
|
|
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_CHANNEL_COUNT); |
622 |
capela |
144 |
if (ret == LSCP_OK && (events & LSCP_EVENT_VOICE_COUNT)) |
623 |
|
|
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_VOICE_COUNT); |
624 |
|
|
if (ret == LSCP_OK && (events & LSCP_EVENT_STREAM_COUNT)) |
625 |
|
|
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_STREAM_COUNT); |
626 |
|
|
if (ret == LSCP_OK && (events & LSCP_EVENT_BUFFER_FILL)) |
627 |
|
|
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_BUFFER_FILL); |
628 |
|
|
if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_INFO)) |
629 |
|
|
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_CHANNEL_INFO); |
630 |
|
|
if (ret == LSCP_OK && (events & LSCP_EVENT_MISCELLANEOUS)) |
631 |
|
|
ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_MISCELLANEOUS); |
632 |
capela |
107 |
|
633 |
capela |
144 |
// If necessary, close the alternate connection... |
634 |
|
|
if (pClient->events == LSCP_EVENT_NONE) |
635 |
|
|
lscp_socket_agent_free(&(pClient->evt)); |
636 |
|
|
|
637 |
capela |
132 |
// Unlock this section down. |
638 |
|
|
lscp_mutex_unlock(pClient->mutex); |
639 |
|
|
|
640 |
capela |
107 |
return ret; |
641 |
|
|
} |
642 |
|
|
|
643 |
|
|
|
644 |
capela |
213 |
/** |
645 |
|
|
* Getting current subscribed events. |
646 |
|
|
* |
647 |
|
|
* @param pClient Pointer to client instance structure. |
648 |
|
|
* |
649 |
|
|
* @returns The current subscrived bit-wise OR'ed event flags. |
650 |
|
|
*/ |
651 |
|
|
lscp_event_t lscp_client_get_events ( lscp_client_t *pClient ) |
652 |
|
|
{ |
653 |
|
|
if (pClient == NULL) |
654 |
|
|
return LSCP_EVENT_NONE; |
655 |
|
|
|
656 |
|
|
return pClient->events; |
657 |
|
|
} |
658 |
|
|
|
659 |
|
|
|
660 |
capela |
107 |
//------------------------------------------------------------------------- |
661 |
|
|
// Client command protocol functions. |
662 |
|
|
|
663 |
|
|
/** |
664 |
|
|
* Loading an instrument: |
665 |
|
|
* LOAD INSTRUMENT <filename> <instr-index> <sampler-channel> |
666 |
|
|
* |
667 |
|
|
* @param pClient Pointer to client instance structure. |
668 |
|
|
* @param pszFileName Instrument file name. |
669 |
|
|
* @param iInstrIndex Instrument index number. |
670 |
|
|
* @param iSamplerChannel Sampler Channel. |
671 |
|
|
* |
672 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
673 |
|
|
*/ |
674 |
|
|
lscp_status_t lscp_load_instrument ( lscp_client_t *pClient, const char *pszFileName, int iInstrIndex, int iSamplerChannel ) |
675 |
|
|
{ |
676 |
|
|
char szQuery[LSCP_BUFSIZ]; |
677 |
|
|
|
678 |
|
|
if (pszFileName == NULL || iSamplerChannel < 0) |
679 |
|
|
return LSCP_FAILED; |
680 |
|
|
|
681 |
capela |
144 |
sprintf(szQuery, "LOAD INSTRUMENT '%s' %d %d\r\n", pszFileName, iInstrIndex, iSamplerChannel); |
682 |
capela |
107 |
return lscp_client_query(pClient, szQuery); |
683 |
|
|
} |
684 |
|
|
|
685 |
|
|
|
686 |
|
|
/** |
687 |
capela |
144 |
* Loading an instrument in the background (non modal): |
688 |
|
|
* LOAD INSTRUMENT NON_MODAL <filename> <instr-index> <sampler-channel> |
689 |
|
|
* |
690 |
|
|
* @param pClient Pointer to client instance structure. |
691 |
|
|
* @param pszFileName Instrument file name. |
692 |
|
|
* @param iInstrIndex Instrument index number. |
693 |
|
|
* @param iSamplerChannel Sampler Channel. |
694 |
|
|
* |
695 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
696 |
|
|
*/ |
697 |
|
|
lscp_status_t lscp_load_instrument_non_modal ( lscp_client_t *pClient, const char *pszFileName, int iInstrIndex, int iSamplerChannel ) |
698 |
|
|
{ |
699 |
|
|
char szQuery[LSCP_BUFSIZ]; |
700 |
|
|
|
701 |
|
|
if (pszFileName == NULL || iSamplerChannel < 0) |
702 |
|
|
return LSCP_FAILED; |
703 |
|
|
|
704 |
|
|
sprintf(szQuery, "LOAD INSTRUMENT NON_MODAL '%s' %d %d\r\n", pszFileName, iInstrIndex, iSamplerChannel); |
705 |
|
|
return lscp_client_query(pClient, szQuery); |
706 |
|
|
} |
707 |
|
|
|
708 |
|
|
|
709 |
|
|
/** |
710 |
capela |
107 |
* Loading a sampler engine: |
711 |
|
|
* LOAD ENGINE <engine-name> <sampler-channel> |
712 |
|
|
* |
713 |
|
|
* @param pClient Pointer to client instance structure. |
714 |
|
|
* @param pszEngineName Engine name. |
715 |
|
|
* @param iSamplerChannel Sampler channel number. |
716 |
|
|
* |
717 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
718 |
|
|
*/ |
719 |
|
|
lscp_status_t lscp_load_engine ( lscp_client_t *pClient, const char *pszEngineName, int iSamplerChannel ) |
720 |
|
|
{ |
721 |
|
|
char szQuery[LSCP_BUFSIZ]; |
722 |
|
|
|
723 |
|
|
if (pszEngineName == NULL || iSamplerChannel < 0) |
724 |
|
|
return LSCP_FAILED; |
725 |
|
|
|
726 |
|
|
sprintf(szQuery, "LOAD ENGINE %s %d\r\n", pszEngineName, iSamplerChannel); |
727 |
|
|
return lscp_client_query(pClient, szQuery); |
728 |
|
|
} |
729 |
|
|
|
730 |
|
|
|
731 |
|
|
/** |
732 |
|
|
* Current number of sampler channels: |
733 |
|
|
* GET CHANNELS |
734 |
|
|
* |
735 |
|
|
* @param pClient Pointer to client instance structure. |
736 |
|
|
* |
737 |
|
|
* @returns The current total number of sampler channels on success, |
738 |
|
|
* -1 otherwise. |
739 |
|
|
*/ |
740 |
|
|
int lscp_get_channels ( lscp_client_t *pClient ) |
741 |
|
|
{ |
742 |
|
|
int iChannels = -1; |
743 |
capela |
132 |
|
744 |
|
|
// Lock this section up. |
745 |
|
|
lscp_mutex_lock(pClient->mutex); |
746 |
|
|
|
747 |
|
|
if (lscp_client_call(pClient, "GET CHANNELS\r\n") == LSCP_OK) |
748 |
capela |
107 |
iChannels = atoi(lscp_client_get_result(pClient)); |
749 |
capela |
132 |
|
750 |
|
|
// Unlock this section doen. |
751 |
|
|
lscp_mutex_unlock(pClient->mutex); |
752 |
|
|
|
753 |
capela |
107 |
return iChannels; |
754 |
|
|
} |
755 |
|
|
|
756 |
|
|
|
757 |
|
|
/** |
758 |
capela |
125 |
* List current sampler channels number identifiers: |
759 |
|
|
* LIST CHANNELS |
760 |
|
|
* |
761 |
|
|
* @param pClient Pointer to client instance structure. |
762 |
|
|
* |
763 |
|
|
* @returns An array of the sampler channels identifiers as positive integers, |
764 |
|
|
* terminated with -1 on success, NULL otherwise. |
765 |
|
|
*/ |
766 |
|
|
int *lscp_list_channels ( lscp_client_t *pClient ) |
767 |
|
|
{ |
768 |
|
|
const char *pszSeps = ","; |
769 |
|
|
|
770 |
|
|
if (pClient == NULL) |
771 |
|
|
return NULL; |
772 |
capela |
562 |
|
773 |
capela |
132 |
// Lock this section up. |
774 |
|
|
lscp_mutex_lock(pClient->mutex); |
775 |
|
|
|
776 |
capela |
125 |
if (pClient->channels) { |
777 |
|
|
lscp_isplit_destroy(pClient->channels); |
778 |
|
|
pClient->channels = NULL; |
779 |
|
|
} |
780 |
|
|
|
781 |
capela |
132 |
if (lscp_client_call(pClient, "LIST CHANNELS\r\n") == LSCP_OK) |
782 |
capela |
125 |
pClient->channels = lscp_isplit_create(lscp_client_get_result(pClient), pszSeps); |
783 |
|
|
|
784 |
capela |
132 |
// Unlock this section down. |
785 |
|
|
lscp_mutex_unlock(pClient->mutex); |
786 |
|
|
|
787 |
capela |
125 |
return pClient->channels; |
788 |
|
|
} |
789 |
|
|
|
790 |
|
|
|
791 |
|
|
/** |
792 |
capela |
107 |
* Adding a new sampler channel: |
793 |
|
|
* ADD CHANNEL |
794 |
|
|
* |
795 |
|
|
* @param pClient Pointer to client instance structure. |
796 |
|
|
* |
797 |
|
|
* @returns The new sampler channel number identifier, |
798 |
|
|
* or -1 in case of failure. |
799 |
|
|
*/ |
800 |
|
|
int lscp_add_channel ( lscp_client_t *pClient ) |
801 |
|
|
{ |
802 |
|
|
int iSamplerChannel = -1; |
803 |
capela |
132 |
|
804 |
|
|
// Lock this section up. |
805 |
|
|
lscp_mutex_lock(pClient->mutex); |
806 |
|
|
|
807 |
|
|
if (lscp_client_call(pClient, "ADD CHANNEL\r\n") == LSCP_OK) |
808 |
capela |
107 |
iSamplerChannel = atoi(lscp_client_get_result(pClient)); |
809 |
capela |
562 |
|
810 |
capela |
132 |
// Unlock this section down. |
811 |
|
|
lscp_mutex_unlock(pClient->mutex); |
812 |
|
|
|
813 |
capela |
107 |
return iSamplerChannel; |
814 |
|
|
} |
815 |
|
|
|
816 |
|
|
|
817 |
|
|
/** |
818 |
|
|
* Removing a sampler channel: |
819 |
|
|
* REMOVE CHANNEL <sampler-channel> |
820 |
|
|
* |
821 |
|
|
* @param pClient Pointer to client instance structure. |
822 |
|
|
* @param iSamplerChannel Sampler channel number. |
823 |
|
|
* |
824 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
825 |
|
|
*/ |
826 |
|
|
lscp_status_t lscp_remove_channel ( lscp_client_t *pClient, int iSamplerChannel ) |
827 |
|
|
{ |
828 |
|
|
char szQuery[LSCP_BUFSIZ]; |
829 |
|
|
|
830 |
|
|
if (iSamplerChannel < 0) |
831 |
|
|
return LSCP_FAILED; |
832 |
|
|
|
833 |
|
|
sprintf(szQuery, "REMOVE CHANNEL %d\r\n", iSamplerChannel); |
834 |
|
|
return lscp_client_query(pClient, szQuery); |
835 |
|
|
} |
836 |
|
|
|
837 |
|
|
|
838 |
|
|
/** |
839 |
capela |
523 |
* Getting all available engines count: |
840 |
capela |
107 |
* GET AVAILABLE_ENGINES |
841 |
|
|
* |
842 |
|
|
* @param pClient Pointer to client instance structure. |
843 |
|
|
* |
844 |
capela |
523 |
* @returns The current total number of sampler engines on success, |
845 |
|
|
* -1 otherwise. |
846 |
|
|
*/ |
847 |
|
|
int lscp_get_available_engines ( lscp_client_t *pClient ) |
848 |
|
|
{ |
849 |
capela |
562 |
int iAvailableEngines = -1; |
850 |
capela |
523 |
|
851 |
|
|
// Lock this section up. |
852 |
|
|
lscp_mutex_lock(pClient->mutex); |
853 |
|
|
|
854 |
|
|
if (lscp_client_call(pClient, "GET AVAILABLE_ENGINES\r\n") == LSCP_OK) |
855 |
|
|
iAvailableEngines = atoi(lscp_client_get_result(pClient)); |
856 |
|
|
|
857 |
|
|
// Unlock this section down. |
858 |
|
|
lscp_mutex_unlock(pClient->mutex); |
859 |
|
|
|
860 |
|
|
return iAvailableEngines; |
861 |
|
|
} |
862 |
|
|
|
863 |
|
|
|
864 |
|
|
/** |
865 |
|
|
* Getting all available engines: |
866 |
|
|
* LIST AVAILABLE_ENGINES |
867 |
|
|
* |
868 |
|
|
* @param pClient Pointer to client instance structure. |
869 |
|
|
* |
870 |
capela |
107 |
* @returns A NULL terminated array of engine name strings, |
871 |
|
|
* or NULL in case of failure. |
872 |
|
|
*/ |
873 |
capela |
523 |
const char **lscp_list_available_engines ( lscp_client_t *pClient ) |
874 |
capela |
107 |
{ |
875 |
|
|
const char *pszSeps = ","; |
876 |
|
|
|
877 |
capela |
132 |
// Lock this section up. |
878 |
|
|
lscp_mutex_lock(pClient->mutex); |
879 |
|
|
|
880 |
capela |
107 |
if (pClient->engines) { |
881 |
|
|
lscp_szsplit_destroy(pClient->engines); |
882 |
|
|
pClient->engines = NULL; |
883 |
|
|
} |
884 |
|
|
|
885 |
capela |
523 |
if (lscp_client_call(pClient, "LIST AVAILABLE_ENGINES\r\n") == LSCP_OK) |
886 |
capela |
107 |
pClient->engines = lscp_szsplit_create(lscp_client_get_result(pClient), pszSeps); |
887 |
|
|
|
888 |
capela |
132 |
// Unlock this section down. |
889 |
|
|
lscp_mutex_unlock(pClient->mutex); |
890 |
|
|
|
891 |
capela |
107 |
return (const char **) pClient->engines; |
892 |
|
|
} |
893 |
|
|
|
894 |
|
|
|
895 |
|
|
/** |
896 |
|
|
* Getting information about an engine. |
897 |
|
|
* GET ENGINE INFO <engine-name> |
898 |
|
|
* |
899 |
|
|
* @param pClient Pointer to client instance structure. |
900 |
|
|
* @param pszEngineName Engine name. |
901 |
|
|
* |
902 |
|
|
* @returns A pointer to a @ref lscp_engine_info_t structure, with all the |
903 |
|
|
* information of the given sampler engine, or NULL in case of failure. |
904 |
|
|
*/ |
905 |
|
|
lscp_engine_info_t *lscp_get_engine_info ( lscp_client_t *pClient, const char *pszEngineName ) |
906 |
|
|
{ |
907 |
|
|
lscp_engine_info_t *pEngineInfo; |
908 |
|
|
char szQuery[LSCP_BUFSIZ]; |
909 |
|
|
const char *pszResult; |
910 |
|
|
const char *pszSeps = ":"; |
911 |
|
|
const char *pszCrlf = "\r\n"; |
912 |
|
|
char *pszToken; |
913 |
|
|
char *pch; |
914 |
|
|
|
915 |
|
|
if (pszEngineName == NULL) |
916 |
|
|
return NULL; |
917 |
|
|
|
918 |
capela |
132 |
// Lock this section up. |
919 |
|
|
lscp_mutex_lock(pClient->mutex); |
920 |
|
|
|
921 |
capela |
107 |
pEngineInfo = &(pClient->engine_info); |
922 |
|
|
lscp_engine_info_reset(pEngineInfo); |
923 |
|
|
|
924 |
|
|
sprintf(szQuery, "GET ENGINE INFO %s\r\n", pszEngineName); |
925 |
capela |
132 |
if (lscp_client_call(pClient, szQuery) == LSCP_OK) { |
926 |
|
|
pszResult = lscp_client_get_result(pClient); |
927 |
|
|
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
928 |
|
|
while (pszToken) { |
929 |
|
|
if (strcasecmp(pszToken, "DESCRIPTION") == 0) { |
930 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
931 |
|
|
if (pszToken) |
932 |
capela |
180 |
lscp_unquote_dup(&(pEngineInfo->description), &pszToken); |
933 |
capela |
132 |
} |
934 |
|
|
else if (strcasecmp(pszToken, "VERSION") == 0) { |
935 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
936 |
|
|
if (pszToken) |
937 |
capela |
180 |
lscp_unquote_dup(&(pEngineInfo->version), &pszToken); |
938 |
capela |
132 |
} |
939 |
|
|
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
940 |
capela |
107 |
} |
941 |
|
|
} |
942 |
capela |
132 |
else pEngineInfo = NULL; |
943 |
capela |
562 |
|
944 |
capela |
132 |
// Unlock this section down. |
945 |
|
|
lscp_mutex_unlock(pClient->mutex); |
946 |
capela |
107 |
|
947 |
|
|
return pEngineInfo; |
948 |
|
|
} |
949 |
|
|
|
950 |
|
|
|
951 |
|
|
/** |
952 |
|
|
* Getting sampler channel informations: |
953 |
|
|
* GET CHANNEL INFO <sampler-channel> |
954 |
|
|
* |
955 |
|
|
* @param pClient Pointer to client instance structure. |
956 |
|
|
* @param iSamplerChannel Sampler channel number. |
957 |
|
|
* |
958 |
|
|
* @returns A pointer to a @ref lscp_channel_info_t structure, with all the |
959 |
|
|
* information of the given sampler channel, or NULL in case of failure. |
960 |
|
|
*/ |
961 |
|
|
lscp_channel_info_t *lscp_get_channel_info ( lscp_client_t *pClient, int iSamplerChannel ) |
962 |
|
|
{ |
963 |
|
|
lscp_channel_info_t *pChannelInfo; |
964 |
|
|
char szQuery[LSCP_BUFSIZ]; |
965 |
|
|
const char *pszResult; |
966 |
|
|
const char *pszSeps = ":"; |
967 |
|
|
const char *pszCrlf = "\r\n"; |
968 |
|
|
char *pszToken; |
969 |
|
|
char *pch; |
970 |
|
|
|
971 |
|
|
if (iSamplerChannel < 0) |
972 |
|
|
return NULL; |
973 |
|
|
|
974 |
capela |
132 |
// Lock this section up. |
975 |
|
|
lscp_mutex_lock(pClient->mutex); |
976 |
capela |
562 |
|
977 |
capela |
107 |
pChannelInfo = &(pClient->channel_info); |
978 |
|
|
lscp_channel_info_reset(pChannelInfo); |
979 |
|
|
|
980 |
|
|
sprintf(szQuery, "GET CHANNEL INFO %d\r\n", iSamplerChannel); |
981 |
capela |
132 |
if (lscp_client_call(pClient, szQuery) == LSCP_OK) { |
982 |
|
|
pszResult = lscp_client_get_result(pClient); |
983 |
|
|
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
984 |
|
|
while (pszToken) { |
985 |
|
|
if (strcasecmp(pszToken, "ENGINE_NAME") == 0) { |
986 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
987 |
|
|
if (pszToken) |
988 |
capela |
180 |
lscp_unquote_dup(&(pChannelInfo->engine_name), &pszToken); |
989 |
capela |
132 |
} |
990 |
|
|
else if (strcasecmp(pszToken, "AUDIO_OUTPUT_DEVICE") == 0) { |
991 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
992 |
|
|
if (pszToken) |
993 |
|
|
pChannelInfo->audio_device = atoi(lscp_ltrim(pszToken)); |
994 |
|
|
} |
995 |
|
|
else if (strcasecmp(pszToken, "AUDIO_OUTPUT_CHANNELS") == 0) { |
996 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
997 |
|
|
if (pszToken) |
998 |
|
|
pChannelInfo->audio_channels = atoi(lscp_ltrim(pszToken)); |
999 |
|
|
} |
1000 |
|
|
else if (strcasecmp(pszToken, "AUDIO_OUTPUT_ROUTING") == 0) { |
1001 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1002 |
capela |
180 |
if (pszToken) { |
1003 |
|
|
if (pChannelInfo->audio_routing) |
1004 |
|
|
lscp_szsplit_destroy(pChannelInfo->audio_routing); |
1005 |
capela |
132 |
pChannelInfo->audio_routing = lscp_szsplit_create(pszToken, ","); |
1006 |
capela |
180 |
} |
1007 |
capela |
132 |
} |
1008 |
|
|
else if (strcasecmp(pszToken, "INSTRUMENT_FILE") == 0) { |
1009 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1010 |
|
|
if (pszToken) |
1011 |
capela |
180 |
lscp_unquote_dup(&(pChannelInfo->instrument_file), &pszToken); |
1012 |
capela |
132 |
} |
1013 |
|
|
else if (strcasecmp(pszToken, "INSTRUMENT_NR") == 0) { |
1014 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1015 |
|
|
if (pszToken) |
1016 |
|
|
pChannelInfo->instrument_nr = atoi(lscp_ltrim(pszToken)); |
1017 |
|
|
} |
1018 |
capela |
378 |
else if (strcasecmp(pszToken, "INSTRUMENT_NAME") == 0) { |
1019 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1020 |
|
|
if (pszToken) |
1021 |
|
|
lscp_unquote_dup(&(pChannelInfo->instrument_name), &pszToken); |
1022 |
|
|
} |
1023 |
capela |
132 |
else if (strcasecmp(pszToken, "INSTRUMENT_STATUS") == 0) { |
1024 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1025 |
|
|
if (pszToken) |
1026 |
|
|
pChannelInfo->instrument_status = atoi(lscp_ltrim(pszToken)); |
1027 |
|
|
} |
1028 |
|
|
else if (strcasecmp(pszToken, "MIDI_INPUT_DEVICE") == 0) { |
1029 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1030 |
|
|
if (pszToken) |
1031 |
|
|
pChannelInfo->midi_device = atoi(lscp_ltrim(pszToken)); |
1032 |
|
|
} |
1033 |
|
|
else if (strcasecmp(pszToken, "MIDI_INPUT_PORT") == 0) { |
1034 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1035 |
|
|
if (pszToken) |
1036 |
|
|
pChannelInfo->midi_port = atoi(lscp_ltrim(pszToken)); |
1037 |
|
|
} |
1038 |
|
|
else if (strcasecmp(pszToken, "MIDI_INPUT_CHANNEL") == 0) { |
1039 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1040 |
capela |
279 |
if (pszToken) { |
1041 |
|
|
pszToken = lscp_ltrim(pszToken); |
1042 |
|
|
if (strcasecmp(pszToken, "ALL") == 0) |
1043 |
|
|
pChannelInfo->midi_channel = LSCP_MIDI_CHANNEL_ALL; |
1044 |
|
|
else |
1045 |
|
|
pChannelInfo->midi_channel = atoi(pszToken); |
1046 |
|
|
} |
1047 |
capela |
132 |
} |
1048 |
|
|
else if (strcasecmp(pszToken, "VOLUME") == 0) { |
1049 |
|
|
pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
1050 |
|
|
if (pszToken) |
1051 |
|
|
pChannelInfo->volume = (float) atof(lscp_ltrim(pszToken)); |
1052 |
|
|
} |
1053 |
|
|
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1054 |
capela |
107 |
} |
1055 |
|
|
} |
1056 |
capela |
132 |
else pChannelInfo = NULL; |
1057 |
capela |
562 |
|
1058 |
capela |
132 |
// Unlock this section up. |
1059 |
|
|
lscp_mutex_unlock(pClient->mutex); |
1060 |
capela |
107 |
|
1061 |
|
|
return pChannelInfo; |
1062 |
|
|
} |
1063 |
|
|
|
1064 |
|
|
|
1065 |
|
|
/** |
1066 |
|
|
* Current number of active voices: |
1067 |
|
|
* GET CHANNEL VOICE_COUNT <sampler-channel> |
1068 |
|
|
* |
1069 |
|
|
* @param pClient Pointer to client instance structure. |
1070 |
|
|
* @param iSamplerChannel Sampler channel number. |
1071 |
|
|
* |
1072 |
|
|
* @returns The number of voices currently active, -1 in case of failure. |
1073 |
|
|
*/ |
1074 |
|
|
int lscp_get_channel_voice_count ( lscp_client_t *pClient, int iSamplerChannel ) |
1075 |
|
|
{ |
1076 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1077 |
|
|
int iVoiceCount = -1; |
1078 |
|
|
|
1079 |
|
|
if (iSamplerChannel < 0) |
1080 |
|
|
return iVoiceCount; |
1081 |
|
|
|
1082 |
capela |
132 |
// Lock this section up. |
1083 |
|
|
lscp_mutex_lock(pClient->mutex); |
1084 |
|
|
|
1085 |
capela |
107 |
sprintf(szQuery, "GET CHANNEL VOICE_COUNT %d\r\n", iSamplerChannel); |
1086 |
capela |
132 |
if (lscp_client_call(pClient, szQuery) == LSCP_OK) |
1087 |
capela |
107 |
iVoiceCount = atoi(lscp_client_get_result(pClient)); |
1088 |
|
|
|
1089 |
capela |
132 |
// Unlock this section down. |
1090 |
|
|
lscp_mutex_unlock(pClient->mutex); |
1091 |
|
|
|
1092 |
capela |
107 |
return iVoiceCount; |
1093 |
|
|
} |
1094 |
|
|
|
1095 |
|
|
|
1096 |
|
|
/** |
1097 |
|
|
* Current number of active disk streams: |
1098 |
|
|
* GET CHANNEL STREAM_COUNT <sampler-channel> |
1099 |
|
|
* |
1100 |
capela |
167 |
* @param pClient Pointer to client instance structure. |
1101 |
|
|
* @param iSamplerChannel Sampler channel number. |
1102 |
|
|
* |
1103 |
capela |
107 |
* @returns The number of active disk streams on success, -1 otherwise. |
1104 |
|
|
*/ |
1105 |
|
|
int lscp_get_channel_stream_count ( lscp_client_t *pClient, int iSamplerChannel ) |
1106 |
|
|
{ |
1107 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1108 |
|
|
int iStreamCount = -1; |
1109 |
|
|
|
1110 |
|
|
if (iSamplerChannel < 0) |
1111 |
|
|
return iStreamCount; |
1112 |
|
|
|
1113 |
capela |
132 |
// Lock this section up. |
1114 |
|
|
lscp_mutex_lock(pClient->mutex); |
1115 |
|
|
|
1116 |
capela |
107 |
sprintf(szQuery, "GET CHANNEL STREAM_COUNT %d\r\n", iSamplerChannel); |
1117 |
capela |
132 |
if (lscp_client_call(pClient, szQuery) == LSCP_OK) |
1118 |
capela |
107 |
iStreamCount = atoi(lscp_client_get_result(pClient)); |
1119 |
|
|
|
1120 |
capela |
132 |
// Unlock this section down. |
1121 |
|
|
lscp_mutex_unlock(pClient->mutex); |
1122 |
|
|
|
1123 |
capela |
107 |
return iStreamCount; |
1124 |
|
|
} |
1125 |
|
|
|
1126 |
|
|
|
1127 |
|
|
/** |
1128 |
capela |
167 |
* Current least usage of active disk streams. |
1129 |
|
|
* |
1130 |
|
|
* @param pClient Pointer to client instance structure. |
1131 |
|
|
* @param iSamplerChannel Sampler channel number. |
1132 |
|
|
* |
1133 |
|
|
* @returns The usage percentage of the least filled active disk stream |
1134 |
|
|
* on success, -1 otherwise. |
1135 |
|
|
*/ |
1136 |
|
|
int lscp_get_channel_stream_usage ( lscp_client_t *pClient, int iSamplerChannel ) |
1137 |
|
|
{ |
1138 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1139 |
|
|
int iStreamUsage = -1; |
1140 |
|
|
const char *pszResult; |
1141 |
|
|
const char *pszSeps = "[]%,"; |
1142 |
|
|
char *pszToken; |
1143 |
|
|
char *pch; |
1144 |
|
|
int iStream; |
1145 |
|
|
int iPercent; |
1146 |
|
|
|
1147 |
|
|
if (iSamplerChannel < 0) |
1148 |
|
|
return iStreamUsage; |
1149 |
|
|
|
1150 |
|
|
// Lock this section up. |
1151 |
|
|
lscp_mutex_lock(pClient->mutex); |
1152 |
|
|
|
1153 |
|
|
iStream = 0; |
1154 |
|
|
sprintf(szQuery, "GET CHANNEL BUFFER_FILL PERCENTAGE %d\r\n", iSamplerChannel); |
1155 |
|
|
if (lscp_client_call(pClient, szQuery) == LSCP_OK) { |
1156 |
|
|
pszResult = lscp_client_get_result(pClient); |
1157 |
|
|
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
1158 |
|
|
while (pszToken) { |
1159 |
|
|
if (*pszToken) { |
1160 |
|
|
// Skip stream id. |
1161 |
|
|
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1162 |
|
|
if (pszToken == NULL) |
1163 |
|
|
break; |
1164 |
|
|
// Get least buffer fill percentage. |
1165 |
|
|
iPercent = atol(pszToken); |
1166 |
|
|
if (iStreamUsage > iPercent || iStream == 0) |
1167 |
|
|
iStreamUsage = iPercent; |
1168 |
|
|
iStream++; |
1169 |
|
|
} |
1170 |
|
|
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1171 |
|
|
} |
1172 |
|
|
} |
1173 |
|
|
|
1174 |
|
|
// Unlock this section down. |
1175 |
|
|
lscp_mutex_unlock(pClient->mutex); |
1176 |
|
|
|
1177 |
|
|
return iStreamUsage; |
1178 |
|
|
} |
1179 |
|
|
|
1180 |
|
|
|
1181 |
|
|
/** |
1182 |
capela |
107 |
* Current fill state of disk stream buffers: |
1183 |
|
|
* GET CHANNEL BUFFER_FILL {BYTES|PERCENTAGE} <sampler-channel> |
1184 |
|
|
* |
1185 |
|
|
* @param pClient Pointer to client instance structure. |
1186 |
|
|
* @param usage_type Usage type to be returned, either |
1187 |
|
|
* @ref LSCP_USAGE_BYTES, or |
1188 |
|
|
* @ref LSCP_USAGE_PERCENTAGE. |
1189 |
|
|
* @param iSamplerChannel Sampler channel number. |
1190 |
|
|
* |
1191 |
|
|
* @returns A pointer to a @ref lscp_buffer_fill_t structure, with the |
1192 |
|
|
* information of the current disk stream buffer fill usage, for the given |
1193 |
|
|
* sampler channel, or NULL in case of failure. |
1194 |
|
|
*/ |
1195 |
|
|
lscp_buffer_fill_t *lscp_get_channel_buffer_fill ( lscp_client_t *pClient, lscp_usage_t usage_type, int iSamplerChannel ) |
1196 |
|
|
{ |
1197 |
|
|
lscp_buffer_fill_t *pBufferFill; |
1198 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1199 |
|
|
int iStreamCount; |
1200 |
|
|
const char *pszUsageType = (usage_type == LSCP_USAGE_BYTES ? "BYTES" : "PERCENTAGE"); |
1201 |
|
|
const char *pszResult; |
1202 |
|
|
const char *pszSeps = "[]%,"; |
1203 |
|
|
char *pszToken; |
1204 |
|
|
char *pch; |
1205 |
|
|
int iStream; |
1206 |
|
|
|
1207 |
capela |
132 |
// Retrieve a channel stream estimation. |
1208 |
capela |
107 |
iStreamCount = lscp_get_channel_stream_count(pClient, iSamplerChannel); |
1209 |
capela |
132 |
if (pClient->iStreamCount < 0) |
1210 |
|
|
return NULL; |
1211 |
|
|
|
1212 |
|
|
// Lock this section up. |
1213 |
|
|
lscp_mutex_lock(pClient->mutex); |
1214 |
|
|
|
1215 |
|
|
// Check if we need to reallocate the stream usage array. |
1216 |
capela |
107 |
if (pClient->iStreamCount != iStreamCount) { |
1217 |
|
|
if (pClient->buffer_fill) |
1218 |
|
|
free(pClient->buffer_fill); |
1219 |
|
|
if (iStreamCount > 0) |
1220 |
|
|
pClient->buffer_fill = (lscp_buffer_fill_t *) malloc(iStreamCount * sizeof(lscp_buffer_fill_t)); |
1221 |
|
|
else |
1222 |
|
|
pClient->buffer_fill = NULL; |
1223 |
|
|
pClient->iStreamCount = iStreamCount; |
1224 |
|
|
} |
1225 |
|
|
|
1226 |
capela |
132 |
// Get buffer fill usage... |
1227 |
capela |
107 |
pBufferFill = pClient->buffer_fill; |
1228 |
capela |
132 |
if (pBufferFill && iStreamCount > 0) { |
1229 |
|
|
iStream = 0; |
1230 |
|
|
pBufferFill = pClient->buffer_fill; |
1231 |
|
|
sprintf(szQuery, "GET CHANNEL BUFFER_FILL %s %d\r\n", pszUsageType, iSamplerChannel); |
1232 |
|
|
if (lscp_client_call(pClient, szQuery) == LSCP_OK) { |
1233 |
|
|
pszResult = lscp_client_get_result(pClient); |
1234 |
|
|
pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
1235 |
|
|
while (pszToken && iStream < pClient->iStreamCount) { |
1236 |
|
|
if (*pszToken) { |
1237 |
|
|
pBufferFill[iStream].stream_id = atol(pszToken); |
1238 |
|
|
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1239 |
|
|
if (pszToken == NULL) |
1240 |
|
|
break; |
1241 |
|
|
pBufferFill[iStream].stream_usage = atol(pszToken); |
1242 |
|
|
iStream++; |
1243 |
|
|
} |
1244 |
capela |
107 |
pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
1245 |
|
|
} |
1246 |
capela |
132 |
} // Reset the usage, whatever it was before. |
1247 |
|
|
else while (iStream < pClient->iStreamCount) |
1248 |
|
|
pBufferFill[iStream++].stream_usage = 0; |
1249 |
|
|
} |
1250 |
capela |
562 |
|
1251 |
capela |
132 |
// Unlock this section down. |
1252 |
|
|
lscp_mutex_unlock(pClient->mutex); |
1253 |
capela |
107 |
|
1254 |
|
|
return pBufferFill; |
1255 |
|
|
} |
1256 |
|
|
|
1257 |
|
|
|
1258 |
|
|
/** |
1259 |
|
|
* Setting audio output type: |
1260 |
|
|
* SET CHANNEL AUDIO_OUTPUT_TYPE <sampler-channel> <audio-output-type> |
1261 |
|
|
* |
1262 |
|
|
* @param pClient Pointer to client instance structure. |
1263 |
|
|
* @param iSamplerChannel Sampler channel number. |
1264 |
|
|
* @param pszAudioDriver Audio output driver type (e.g. "ALSA" or "JACK"). |
1265 |
|
|
*/ |
1266 |
|
|
lscp_status_t lscp_set_channel_audio_type ( lscp_client_t *pClient, int iSamplerChannel, const char *pszAudioDriver ) |
1267 |
|
|
{ |
1268 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1269 |
|
|
|
1270 |
|
|
if (iSamplerChannel < 0 || pszAudioDriver == NULL) |
1271 |
|
|
return LSCP_FAILED; |
1272 |
|
|
|
1273 |
|
|
sprintf(szQuery, "SET CHANNEL AUDIO_OUTPUT_TYPE %d %s\r\n", iSamplerChannel, pszAudioDriver); |
1274 |
|
|
return lscp_client_query(pClient, szQuery); |
1275 |
|
|
} |
1276 |
|
|
|
1277 |
|
|
|
1278 |
|
|
/** |
1279 |
capela |
144 |
* Setting audio output device: |
1280 |
|
|
* SET CHANNEL AUDIO_OUTPUT_DEVICE <sampler-channel> <device-id> |
1281 |
|
|
* |
1282 |
|
|
* @param pClient Pointer to client instance structure. |
1283 |
|
|
* @param iSamplerChannel Sampler channel number. |
1284 |
|
|
* @param iAudioDevice Audio output device number identifier. |
1285 |
|
|
*/ |
1286 |
|
|
lscp_status_t lscp_set_channel_audio_device ( lscp_client_t *pClient, int iSamplerChannel, int iAudioDevice ) |
1287 |
|
|
{ |
1288 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1289 |
|
|
|
1290 |
|
|
if (iSamplerChannel < 0 || iAudioDevice < 0) |
1291 |
|
|
return LSCP_FAILED; |
1292 |
|
|
|
1293 |
|
|
sprintf(szQuery, "SET CHANNEL AUDIO_OUTPUT_DEVICE %d %d\r\n", iSamplerChannel, iAudioDevice); |
1294 |
|
|
return lscp_client_query(pClient, szQuery); |
1295 |
|
|
} |
1296 |
|
|
|
1297 |
|
|
|
1298 |
|
|
/** |
1299 |
capela |
107 |
* Setting audio output channel: |
1300 |
|
|
* SET CHANNEL AUDIO_OUTPUT_CHANNEL <sampler-channel> <audio-output-chan> <audio-input-chan> |
1301 |
|
|
* |
1302 |
|
|
* @param pClient Pointer to client instance structure. |
1303 |
|
|
* @param iSamplerChannel Sampler channel number. |
1304 |
|
|
* @param iAudioOut Audio output device channel to be routed from. |
1305 |
|
|
* @param iAudioIn Audio output device channel to be routed into. |
1306 |
|
|
* |
1307 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1308 |
|
|
*/ |
1309 |
|
|
lscp_status_t lscp_set_channel_audio_channel ( lscp_client_t *pClient, int iSamplerChannel, int iAudioOut, int iAudioIn ) |
1310 |
|
|
{ |
1311 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1312 |
|
|
|
1313 |
|
|
if (iSamplerChannel < 0 || iAudioOut < 0 || iAudioIn < 0) |
1314 |
|
|
return LSCP_FAILED; |
1315 |
|
|
|
1316 |
capela |
188 |
sprintf(szQuery, "SET CHANNEL AUDIO_OUTPUT_CHANNEL %d %d %d\r\n", iSamplerChannel, iAudioOut, iAudioIn); |
1317 |
capela |
107 |
return lscp_client_query(pClient, szQuery); |
1318 |
|
|
} |
1319 |
|
|
|
1320 |
|
|
|
1321 |
|
|
/** |
1322 |
|
|
* Setting MIDI input type: |
1323 |
|
|
* SET CHANNEL MIDI_INPUT_TYPE <sampler-channel> <midi-input-type> |
1324 |
|
|
* |
1325 |
|
|
* @param pClient Pointer to client instance structure. |
1326 |
|
|
* @param iSamplerChannel Sampler channel number. |
1327 |
|
|
* @param pszMidiDriver MIDI input driver type (e.g. "ALSA"). |
1328 |
|
|
* |
1329 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1330 |
|
|
*/ |
1331 |
|
|
lscp_status_t lscp_set_channel_midi_type ( lscp_client_t *pClient, int iSamplerChannel, const char *pszMidiDriver ) |
1332 |
|
|
{ |
1333 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1334 |
|
|
|
1335 |
|
|
if (iSamplerChannel < 0 || pszMidiDriver == NULL) |
1336 |
|
|
return LSCP_FAILED; |
1337 |
|
|
|
1338 |
|
|
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_TYPE %d %s\r\n", iSamplerChannel, pszMidiDriver); |
1339 |
|
|
return lscp_client_query(pClient, szQuery); |
1340 |
|
|
} |
1341 |
|
|
|
1342 |
|
|
|
1343 |
|
|
/** |
1344 |
capela |
144 |
* Setting MIDI input device: |
1345 |
|
|
* SET CHANNEL MIDI_INPUT_DEVICE <sampler-channel> <device-id> |
1346 |
|
|
* |
1347 |
|
|
* @param pClient Pointer to client instance structure. |
1348 |
|
|
* @param iSamplerChannel Sampler channel number. |
1349 |
|
|
* @param iMidiDevice MIDI input device number identifier. |
1350 |
|
|
*/ |
1351 |
|
|
lscp_status_t lscp_set_channel_midi_device ( lscp_client_t *pClient, int iSamplerChannel, int iMidiDevice ) |
1352 |
|
|
{ |
1353 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1354 |
|
|
|
1355 |
|
|
if (iSamplerChannel < 0 || iMidiDevice < 0) |
1356 |
|
|
return LSCP_FAILED; |
1357 |
|
|
|
1358 |
|
|
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_DEVICE %d %d\r\n", iSamplerChannel, iMidiDevice); |
1359 |
|
|
return lscp_client_query(pClient, szQuery); |
1360 |
|
|
} |
1361 |
|
|
|
1362 |
|
|
|
1363 |
|
|
/** |
1364 |
capela |
107 |
* Setting MIDI input port: |
1365 |
|
|
* SET CHANNEL MIDI_INPUT_PORT <sampler-channel> <midi-input-port> |
1366 |
|
|
* |
1367 |
|
|
* @param pClient Pointer to client instance structure. |
1368 |
|
|
* @param iSamplerChannel Sampler channel number. |
1369 |
|
|
* @param iMidiPort MIDI input driver virtual port number. |
1370 |
|
|
* |
1371 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1372 |
|
|
*/ |
1373 |
|
|
lscp_status_t lscp_set_channel_midi_port ( lscp_client_t *pClient, int iSamplerChannel, int iMidiPort ) |
1374 |
|
|
{ |
1375 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1376 |
|
|
|
1377 |
|
|
if (iSamplerChannel < 0 || iMidiPort < 0) |
1378 |
|
|
return LSCP_FAILED; |
1379 |
|
|
|
1380 |
|
|
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_PORT %d %d\r\n", iSamplerChannel, iMidiPort); |
1381 |
|
|
return lscp_client_query(pClient, szQuery); |
1382 |
|
|
} |
1383 |
|
|
|
1384 |
|
|
|
1385 |
|
|
/** |
1386 |
|
|
* Setting MIDI input channel: |
1387 |
|
|
* SET CHANNEL MIDI_INPUT_CHANNEL <sampler-channel> <midi-input-chan> |
1388 |
|
|
* |
1389 |
|
|
* @param pClient Pointer to client instance structure. |
1390 |
|
|
* @param iSamplerChannel Sampler channel number. |
1391 |
capela |
278 |
* @param iMidiChannel MIDI channel address number to listen (0-15) or |
1392 |
|
|
* LSCP_MIDI_CHANNEL_ALL (16) to listen on all channels. |
1393 |
capela |
107 |
* |
1394 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1395 |
|
|
*/ |
1396 |
|
|
lscp_status_t lscp_set_channel_midi_channel ( lscp_client_t *pClient, int iSamplerChannel, int iMidiChannel ) |
1397 |
|
|
{ |
1398 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1399 |
|
|
|
1400 |
capela |
254 |
if (iSamplerChannel < 0 || iMidiChannel < 0 || iMidiChannel > 16) |
1401 |
capela |
107 |
return LSCP_FAILED; |
1402 |
|
|
|
1403 |
capela |
278 |
if (iMidiChannel == LSCP_MIDI_CHANNEL_ALL) |
1404 |
|
|
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_CHANNEL %d ALL\r\n", iSamplerChannel); |
1405 |
|
|
else |
1406 |
capela |
107 |
sprintf(szQuery, "SET CHANNEL MIDI_INPUT_CHANNEL %d %d\r\n", iSamplerChannel, iMidiChannel); |
1407 |
|
|
return lscp_client_query(pClient, szQuery); |
1408 |
|
|
} |
1409 |
|
|
|
1410 |
|
|
|
1411 |
|
|
/** |
1412 |
|
|
* Setting channel volume: |
1413 |
|
|
* SET CHANNEL VOLUME <sampler-channel> <volume> |
1414 |
|
|
* |
1415 |
|
|
* @param pClient Pointer to client instance structure. |
1416 |
|
|
* @param iSamplerChannel Sampler channel number. |
1417 |
|
|
* @param fVolume Sampler channel volume as a positive floating point |
1418 |
|
|
* number, where a value less than 1.0 for attenuation, |
1419 |
|
|
* and greater than 1.0 for amplification. |
1420 |
|
|
* |
1421 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1422 |
|
|
*/ |
1423 |
|
|
lscp_status_t lscp_set_channel_volume ( lscp_client_t *pClient, int iSamplerChannel, float fVolume ) |
1424 |
|
|
{ |
1425 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1426 |
|
|
|
1427 |
|
|
if (iSamplerChannel < 0 || fVolume < 0.0) |
1428 |
|
|
return LSCP_FAILED; |
1429 |
|
|
|
1430 |
|
|
sprintf(szQuery, "SET CHANNEL VOLUME %d %g\r\n", iSamplerChannel, fVolume); |
1431 |
|
|
return lscp_client_query(pClient, szQuery); |
1432 |
|
|
} |
1433 |
|
|
|
1434 |
|
|
|
1435 |
|
|
/** |
1436 |
|
|
* Resetting a sampler channel: |
1437 |
|
|
* RESET CHANNEL <sampler-channel> |
1438 |
|
|
* |
1439 |
|
|
* @param pClient Pointer to client instance structure. |
1440 |
|
|
* @param iSamplerChannel Sampler channel number. |
1441 |
|
|
* |
1442 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1443 |
|
|
*/ |
1444 |
|
|
lscp_status_t lscp_reset_channel ( lscp_client_t *pClient, int iSamplerChannel ) |
1445 |
|
|
{ |
1446 |
|
|
char szQuery[LSCP_BUFSIZ]; |
1447 |
|
|
|
1448 |
|
|
if (iSamplerChannel < 0) |
1449 |
|
|
return LSCP_FAILED; |
1450 |
|
|
|
1451 |
|
|
sprintf(szQuery, "RESET CHANNEL %d\r\n", iSamplerChannel); |
1452 |
|
|
return lscp_client_query(pClient, szQuery); |
1453 |
|
|
} |
1454 |
|
|
|
1455 |
|
|
|
1456 |
capela |
213 |
/** |
1457 |
|
|
* Resetting the sampler: |
1458 |
|
|
* RESET |
1459 |
|
|
* |
1460 |
|
|
* @param pClient Pointer to client instance structure. |
1461 |
|
|
* |
1462 |
|
|
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
1463 |
|
|
*/ |
1464 |
|
|
lscp_status_t lscp_reset_sampler ( lscp_client_t *pClient ) |
1465 |
|
|
{ |
1466 |
|
|
return lscp_client_query(pClient, "RESET\r\n"); |
1467 |
|
|
} |
1468 |
|
|
|
1469 |
|
|
|
1470 |
capela |
107 |
// end of client.c |