diff options
Diffstat (limited to 'main/slinfactory.c')
| -rw-r--r-- | main/slinfactory.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/main/slinfactory.c b/main/slinfactory.c deleted file mode 100644 index bd5b8de4f..000000000 --- a/main/slinfactory.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 2005, Anthony Minessale II. - * - * Anthony Minessale <anthmct@yahoo.com> - * - * See http://www.asterisk.org for more information about - * the Asterisk project. Please do not directly contact - * any of the maintainers of this project for assistance; - * the project provides a web site, mailing lists and IRC - * channels for your use. - * - * This program is free software, distributed under the terms of - * the GNU General Public License Version 2. See the LICENSE file - * at the top of the source tree. - */ - -/*! \file - * - * \brief A machine to gather up arbitrary frames and convert them - * to raw slinear on demand. - * - * \author Anthony Minessale <anthmct@yahoo.com> - */ - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include <string.h> - -#include "asterisk/frame.h" -#include "asterisk/slinfactory.h" -#include "asterisk/logger.h" -#include "asterisk/translate.h" - -void ast_slinfactory_init(struct ast_slinfactory *sf) -{ - memset(sf, 0, sizeof(*sf)); - sf->offset = sf->hold; -} - -void ast_slinfactory_destroy(struct ast_slinfactory *sf) -{ - struct ast_frame *f; - - if (sf->trans) { - ast_translator_free_path(sf->trans); - sf->trans = NULL; - } - - while ((f = AST_LIST_REMOVE_HEAD(&sf->queue, frame_list))) - ast_frfree(f); -} - -int ast_slinfactory_feed(struct ast_slinfactory *sf, struct ast_frame *f) -{ - struct ast_frame *begin_frame = f, *duped_frame = NULL, *frame_ptr; - unsigned int x; - - if (f->subclass != AST_FORMAT_SLINEAR) { - if (sf->trans && f->subclass != sf->format) { - ast_translator_free_path(sf->trans); - sf->trans = NULL; - } - - if (!sf->trans) { - if ((sf->trans = ast_translator_build_path(AST_FORMAT_SLINEAR, f->subclass)) == NULL) { - ast_log(LOG_WARNING, "Cannot build a path from %s to slin\n", ast_getformatname(f->subclass)); - return 0; - } else { - sf->format = f->subclass; - } - } - - if (!(begin_frame = ast_translate(sf->trans, f, 0))) - return 0; - - duped_frame = ast_frdup(begin_frame); - - ast_frfree(begin_frame); - - if (!duped_frame) - return 0; - } else { - if (!(duped_frame = ast_frdup(f))) - return 0; - } - - x = 0; - AST_LIST_TRAVERSE(&sf->queue, frame_ptr, frame_list) - x++; - - AST_LIST_INSERT_TAIL(&sf->queue, duped_frame, frame_list); - - sf->size += duped_frame->samples; - - return x; -} - -int ast_slinfactory_read(struct ast_slinfactory *sf, short *buf, size_t samples) -{ - struct ast_frame *frame_ptr; - unsigned int sofar = 0, ineed, remain; - short *frame_data, *offset = buf; - - while (sofar < samples) { - ineed = samples - sofar; - - if (sf->holdlen) { - if (sf->holdlen <= ineed) { - memcpy(offset, sf->hold, sf->holdlen * sizeof(*offset)); - sofar += sf->holdlen; - offset += sf->holdlen; - sf->holdlen = 0; - sf->offset = sf->hold; - } else { - remain = sf->holdlen - ineed; - memcpy(offset, sf->offset, ineed * sizeof(*offset)); - sofar += ineed; - sf->offset += ineed; - sf->holdlen = remain; - } - continue; - } - - if ((frame_ptr = AST_LIST_REMOVE_HEAD(&sf->queue, frame_list))) { - frame_data = frame_ptr->data; - - if (frame_ptr->samples <= ineed) { - memcpy(offset, frame_data, frame_ptr->samples * sizeof(*offset)); - sofar += frame_ptr->samples; - offset += frame_ptr->samples; - } else { - remain = frame_ptr->samples - ineed; - memcpy(offset, frame_data, ineed * sizeof(*offset)); - sofar += ineed; - frame_data += ineed; - if (remain > (AST_SLINFACTORY_MAX_HOLD - sf->holdlen)) { - remain = AST_SLINFACTORY_MAX_HOLD - sf->holdlen; - } - memcpy(sf->hold, frame_data, remain * sizeof(*offset)); - sf->holdlen = remain; - } - ast_frfree(frame_ptr); - } else { - break; - } - } - - sf->size -= sofar; - return sofar; -} - -unsigned int ast_slinfactory_available(const struct ast_slinfactory *sf) -{ - return sf->size; -} - -void ast_slinfactory_flush(struct ast_slinfactory *sf) -{ - struct ast_frame *fr = NULL; - - if (sf->trans) { - ast_translator_free_path(sf->trans); - sf->trans = NULL; - } - - while ((fr = AST_LIST_REMOVE_HEAD(&sf->queue, frame_list))) - ast_frfree(fr); - - sf->size = sf->holdlen = 0; - sf->offset = sf->hold; - - return; -} |