106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
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/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2013 Digium, Inc.
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*
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* Richard Mudgett <rmudgett@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*!
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* \file
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* \brief ConfBridge recorder channel driver
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*
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* \author Richard Mudgett <rmudgett@digium.com>
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*
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* See Also:
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* \arg \ref AstCREDITS
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*/
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#include "asterisk.h"
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#include "asterisk/channel.h"
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#include "asterisk/bridge.h"
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#include "asterisk/format_cache.h"
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#include "include/confbridge.h"
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/* ------------------------------------------------------------------- */
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static unsigned int name_sequence = 0;
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static int rec_call(struct ast_channel *chan, const char *addr, int timeout)
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{
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/* Make sure anyone calling ast_call() for this channel driver is going to fail. */
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return -1;
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}
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static struct ast_frame *rec_read(struct ast_channel *ast)
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{
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return &ast_null_frame;
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}
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static int rec_write(struct ast_channel *ast, struct ast_frame *f)
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{
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return 0;
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}
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static struct ast_channel *rec_request(const char *type, struct ast_format_cap *cap, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *data, int *cause)
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{
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struct ast_channel *chan;
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const char *conf_name = data;
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RAII_VAR(struct ast_format_cap *, capabilities, NULL, ao2_cleanup);
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int generated_seqno = ast_atomic_fetchadd_int((int *) &name_sequence, +1);
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capabilities = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
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if (!capabilities) {
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return NULL;
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}
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ast_format_cap_append_by_type(capabilities, AST_MEDIA_TYPE_AUDIO);
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chan = ast_channel_alloc(1, AST_STATE_UP, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 0,
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"CBRec/%s-%08x",
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conf_name, (unsigned) generated_seqno);
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if (!chan) {
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return NULL;
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}
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if (ast_channel_add_bridge_role(chan, "recorder")) {
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ast_channel_unlock(chan);
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ast_channel_release(chan);
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return NULL;
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}
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ast_channel_tech_set(chan, conf_record_get_tech());
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ast_channel_nativeformats_set(chan, capabilities);
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ast_channel_set_writeformat(chan, ast_format_slin);
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ast_channel_set_rawwriteformat(chan, ast_format_slin);
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ast_channel_set_readformat(chan, ast_format_slin);
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ast_channel_set_rawreadformat(chan, ast_format_slin);
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ast_channel_unlock(chan);
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return chan;
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}
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static struct ast_channel_tech record_tech = {
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.type = "CBRec",
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.description = "Conference Bridge Recording Channel",
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.requester = rec_request,
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.call = rec_call,
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.read = rec_read,
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.write = rec_write,
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.properties = AST_CHAN_TP_INTERNAL,
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};
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struct ast_channel_tech *conf_record_get_tech(void)
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{
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return &record_tech;
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}
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