diff options
Diffstat (limited to '1.2-netsec/formats/format_g723.c')
| -rw-r--r-- | 1.2-netsec/formats/format_g723.c | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/1.2-netsec/formats/format_g723.c b/1.2-netsec/formats/format_g723.c deleted file mode 100644 index 2d17d96eb..000000000 --- a/1.2-netsec/formats/format_g723.c +++ /dev/null @@ -1,278 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999 - 2005, Digium, Inc. - * - * Mark Spencer <markster@digium.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 Old-style G.723.1 frame/timestamp format. - * - * \arg Extensions: g723, g723sf - * \ingroup formats - */ - -#include <unistd.h> -#include <netinet/in.h> -#include <arpa/inet.h> -#include <stdlib.h> -#include <stdio.h> -#include <errno.h> -#include <string.h> -#include <sys/time.h> - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include "asterisk/lock.h" -#include "asterisk/channel.h" -#include "asterisk/file.h" -#include "asterisk/logger.h" -#include "asterisk/sched.h" -#include "asterisk/module.h" - -#include "../channels/adtranvofr.h" - - -#define G723_MAX_SIZE 1024 - -struct ast_filestream { - /* First entry MUST be reserved for the channel type */ - void *reserved[AST_RESERVED_POINTERS]; - /* This is what a filestream means to us */ - FILE *f; /* Descriptor */ - struct ast_filestream *next; - struct ast_frame *fr; /* Frame representation of buf */ - struct timeval orig; /* Original frame time */ - char buf[G723_MAX_SIZE + AST_FRIENDLY_OFFSET]; /* Buffer for sending frames, etc */ -}; - - -AST_MUTEX_DEFINE_STATIC(g723_lock); -static int glistcnt = 0; - -static char *name = "g723sf"; -static char *desc = "G.723.1 Simple Timestamp File Format"; -static char *exts = "g723|g723sf"; - -static struct ast_filestream *g723_open(FILE *f) -{ - /* We don't have any header to read or anything really, but - if we did, it would go here. We also might want to check - and be sure it's a valid file. */ - struct ast_filestream *tmp; - if ((tmp = malloc(sizeof(struct ast_filestream)))) { - memset(tmp, 0, sizeof(struct ast_filestream)); - if (ast_mutex_lock(&g723_lock)) { - ast_log(LOG_WARNING, "Unable to lock g723 list\n"); - free(tmp); - return NULL; - } - tmp->f = f; - tmp->fr = (struct ast_frame *)tmp->buf; - tmp->fr->data = tmp->buf + sizeof(struct ast_frame); - tmp->fr->frametype = AST_FRAME_VOICE; - tmp->fr->subclass = AST_FORMAT_G723_1; - /* datalen will vary for each frame */ - tmp->fr->src = name; - tmp->fr->mallocd = 0; - glistcnt++; - ast_mutex_unlock(&g723_lock); - ast_update_use_count(); - } - return tmp; -} - -static struct ast_filestream *g723_rewrite(FILE *f, const char *comment) -{ - /* We don't have any header to read or anything really, but - if we did, it would go here. We also might want to check - and be sure it's a valid file. */ - struct ast_filestream *tmp; - if ((tmp = malloc(sizeof(struct ast_filestream)))) { - memset(tmp, 0, sizeof(struct ast_filestream)); - if (ast_mutex_lock(&g723_lock)) { - ast_log(LOG_WARNING, "Unable to lock g723 list\n"); - free(tmp); - return NULL; - } - tmp->f = f; - glistcnt++; - ast_mutex_unlock(&g723_lock); - ast_update_use_count(); - } else - ast_log(LOG_WARNING, "Out of memory\n"); - return tmp; -} - -static struct ast_frame *g723_read(struct ast_filestream *s, int *whennext) -{ - unsigned short size; - int res; - int delay; - /* Read the delay for the next packet, and schedule again if necessary */ - if (fread(&delay, 1, 4, s->f) == 4) - delay = ntohl(delay); - else - delay = -1; - if (fread(&size, 1, 2, s->f) != 2) { - /* Out of data, or the file is no longer valid. In any case - go ahead and stop the stream */ - return NULL; - } - /* Looks like we have a frame to read from here */ - size = ntohs(size); - if (size > G723_MAX_SIZE - sizeof(struct ast_frame)) { - ast_log(LOG_WARNING, "Size %d is invalid\n", size); - /* The file is apparently no longer any good, as we - shouldn't ever get frames even close to this - size. */ - return NULL; - } - /* Read the data into the buffer */ - s->fr->offset = AST_FRIENDLY_OFFSET; - s->fr->datalen = size; - s->fr->data = s->buf + sizeof(struct ast_frame) + AST_FRIENDLY_OFFSET; - if ((res = fread(s->fr->data, 1, size, s->f)) != size) { - ast_log(LOG_WARNING, "Short read (%d of %d bytes) (%s)!\n", res, size, strerror(errno)); - return NULL; - } -#if 0 - /* Average out frames <= 50 ms */ - if (delay < 50) - s->fr->timelen = 30; - else - s->fr->timelen = delay; -#else - s->fr->samples = 240; -#endif - *whennext = s->fr->samples; - return s->fr; -} - -static void g723_close(struct ast_filestream *s) -{ - if (ast_mutex_lock(&g723_lock)) { - ast_log(LOG_WARNING, "Unable to lock g723 list\n"); - return; - } - glistcnt--; - ast_mutex_unlock(&g723_lock); - ast_update_use_count(); - fclose(s->f); - free(s); - s = NULL; -} - - -static int g723_write(struct ast_filestream *fs, struct ast_frame *f) -{ - u_int32_t delay; - u_int16_t size; - int res; - if (fs->fr) { - ast_log(LOG_WARNING, "Asked to write on a read stream??\n"); - return -1; - } - if (f->frametype != AST_FRAME_VOICE) { - ast_log(LOG_WARNING, "Asked to write non-voice frame!\n"); - return -1; - } - if (f->subclass != AST_FORMAT_G723_1) { - ast_log(LOG_WARNING, "Asked to write non-g723 frame!\n"); - return -1; - } - delay = 0; - if (f->datalen <= 0) { - ast_log(LOG_WARNING, "Short frame ignored (%d bytes long?)\n", f->datalen); - return 0; - } - if ((res = fwrite(&delay, 1, 4, fs->f)) != 4) { - ast_log(LOG_WARNING, "Unable to write delay: res=%d (%s)\n", res, strerror(errno)); - return -1; - } - size = htons(f->datalen); - if ((res = fwrite(&size, 1, 2, fs->f)) != 2) { - ast_log(LOG_WARNING, "Unable to write size: res=%d (%s)\n", res, strerror(errno)); - return -1; - } - if ((res = fwrite(f->data, 1, f->datalen, fs->f)) != f->datalen) { - ast_log(LOG_WARNING, "Unable to write frame: res=%d (%s)\n", res, strerror(errno)); - return -1; - } - return 0; -} - -static int g723_seek(struct ast_filestream *fs, long sample_offset, int whence) -{ - return -1; -} - -static int g723_trunc(struct ast_filestream *fs) -{ - /* Truncate file to current length */ - if (ftruncate(fileno(fs->f), ftell(fs->f)) < 0) - return -1; - return 0; -} - -static long g723_tell(struct ast_filestream *fs) -{ - return -1; -} - -static char *g723_getcomment(struct ast_filestream *s) -{ - return NULL; -} - -int load_module() -{ - return ast_format_register(name, exts, AST_FORMAT_G723_1, - g723_open, - g723_rewrite, - g723_write, - g723_seek, - g723_trunc, - g723_tell, - g723_read, - g723_close, - g723_getcomment); - - -} - -int unload_module() -{ - return ast_format_unregister(name); -} - -int usecount() -{ - return glistcnt; -} - -char *description() -{ - return desc; -} - - -char *key() -{ - return ASTERISK_GPL_KEY; -} |